Tag: rooftop rainwater harvesting filter

Earlier in Bihar, arsenic, fluoride and iron were confirmed in groundwater in 28 districts, but now the Deputy Chief Minister admitted that the water in 37 districts was no longer fit for drinking.

In Dhamdaha village of Purnia district of Bihar, yellowness is visible near the hand pump due to excess of iron. Whereas this hand pump has been installed by the government to provide iron free water. Photo: Pushya Mitra

Deputy Chief Minister of Bihar Sushil Kumar Modi has informed in one of his speeches that the water of 37 out of 38 districts of Bihar is not fit for drinking. These include contamination with fluoride, arsenic and iron. Despite all the efforts of the government, supply of quality drinking water in 31 thousand wards of the state still remains a challenge. He was addressing the 52nd annual conference of the Indian Water Works Association in the auditorium of NIT Patna on Sunday. This admission of Deputy Chief Minister Modi shows that a large population of the state is still in serious danger due to consuming infected drinking water. With this, the scope of infection has increased, because till just a few years ago only 28 districts of the state were under the scope of drinking water contamination.

Earlier there was infection in 28 districts

However, information is still available on the site of the state Public Health Engineering Department based on the 2009 groundwater quality status report only. Information has been given there that 13 districts of the state are affected by excess of arsenic, 11 fluoride and 9 iron. In some of these districts, there are two types of infections, thus the number of groundwater infected districts is said to be 28. Similarly, there is information about iron contamination in the water of 18673 tolas, fluoride contamination in the water of 4157 tolas and arsenic contamination in the water of 1590 tolas. In this way, groundwater of a total of 24,420 hamlets is reported to be infected.

According to the 2009 report, all the districts situated on the banks of Ganga in the state are under the influence of arsenic contamination. All the districts of South Bihar are fluoride infected and nine districts of East Bihar are at risk of iron infection. Some districts of North-West Bihar were till now said to be free from groundwater contamination. But according to new information, they too may have been infected with iron or arsenic. Yesterday the Deputy Chief Minister informed about the contamination of water in 31 thousand wards of 37 districts of the state.

Infection increased in 6,580 hamlets of nine districts

If this information is considered correct, then in the last ten years the infection has spread in the groundwater of 9 districts and 6,580 hamlets. Continuous efforts were made to get information in this regard from the department officials, but they were not available. According to a report available on the department’s site, the target is to provide pure drinking water in these tolas by March 2020. But how much this can be achieved remains to be seen.

Risk of cancer, fluorosis and gas related diseases

The number of cancer patients is continuously increasing in Bihar due to arsenic contamination in groundwater. It is believed that one in every ten thousand people in an arsenic contaminated area is at risk of becoming a victim of cancer. The number of gall bladder cancer patients has increased rapidly in the last few years in Bihar, and arsenic is being considered a major reason behind this. Last year, a joint research by India and UK revealed that wheat grown in arsenic contaminated areas also poses a risk of cancer.

Similarly, fluorosis patients are seen in abundance in many fluoride infected villages of South Bihar. Their bones start becoming crooked. Gas and related diseases are prevalent in iron infected areas.

Neerain is proud to republish this article for spreading awareness about situation of water, for our stakeholders. Credit whatsoever goes to the Author.

This article is published by: –

https://www.downtoearth.org.in/hindistory/water/ground-water/37-out-of-38-districts-of-bihar-s-water-is-not-drinkable-government-admitted-68775

 

Author:  Pushya Mitra

Publish On: 13 January 2020

The bench had gone into the details of the PIL and took note of the grave situation of water scarcity stated in the PIL in context to the urban areas of Pune district. The Bombay high court had taken note of the above information and had directed that a special committee be constituted separately for PMC and PCMC. And such committees shall attend to the complaints of the residents regarding water scarcity. The PMRDA was also directed to address the water problems faced by the residents coming under their jurisdiction.

Pune, 23rd November 2023: the PIL 126/2023 regarding water problem faced by the residents of urban areas of Pune district was last heard by the division bench headed by acting chief justice SV GANGAPURWALA and justice Sandeep Marne at Bombay high court on 10.04.2023.

The committee is to consist of 1) municipal commissioner 2) divisional commissioner 3) chief city engineer 4) member, secretary, district legal services authority. The committee therefore is to consist of people who are involved in the redressal of the water problem faced by the residents of the affected areas.

Where is the special committee? – citizens ask! Contempt of court petition to be filed.

Satya muley – advocate Bombay high court, stated that a notice was sent to the PMC, PCMC and PMRDA in the month of June 2023 requesting for information about formation of such a special committee. However, none of them responded by giving any information about the formation of the committee. Therefore, it is apparent that PMC, PCMC and PMRDA have not formed any such special committee. Therefore, a fresh legal notice has been issued on 22.11.2023 to PMC, PCMC and PMRDA. If we do not receive the information about formation of the special committee, then a contempt of court petition will be filed against all the respective office bearers who are supposed to be the members of the proposed committee.

PMC, PCMC & PMRDA not serious about water problems of the citizens.

In a similar PIL during 2016-17 the Bombay high court had directed the PMC to form a special committee to attend to the complaints of the residents regarding the water scarcity problem. Adv. Satya muley points PMC had formed such a committee in the past, but the committee met only for 4 times during 2017 and 2018, and very surprisingly was dissolved stating the reason that there was no water scarcity problem. He also pointed out that had such a committee been functional, today the grave situation of water scarcity would not have arisen in urban areas of Pune district. Earlier during the hearing of November 29, 2022, and December 15, 2022, the Bombay high court had expressed serious concerns about the issue and also had warned for imposing fine on the respondents for their slow response.

Water scarcity-current scenario

Several housing societies across Pune district are facing severe water shortages and spend huge amounts for purchase of water from private water tanker operators. Each and every neigh Bourhood of urban area of Pune district coming under PMC, PCMC and PMRDA are facing acute water shortage of drinking and domestic use water. As per ministry of housing and urban affairs, 135 Litres per capita per day (LPCD) has been suggested as the benchmark for urban water supply. The situation is so bad that in several areas of Pune residents are not getting even 20 litres of water supply per head per day. Baner- Balewadi, Wagholi, Hinjawadi, Bavdhan, Pashan, Pimpri Chinchwad, Wakad, Mudhwa and many regions of Pune district are facing severe water crunch, and the urban areas are now under the strong grip of private water tanker mafia. As per one estimate the housing societies in Pune district are spending over 300 to 400 crores per month to purchase daily need water from private water tanker operators. Does this figure provide the reason behind the artificial water scarcity in Pune district? People are forced to spend money for water in urban areas of Pune district.

STOP GIVING PERMISSIONS FOR NEW CONSTRUCTIONS

Speaking on behalf of the petitioners, adv Satya muley said, “water is a basic necessity of life, and the current state of water supply situation in urban areas of entire Pune district is pathetic. The PMC, PCMCPMRDA and the Pune Zilla parishad should stop giving permissions for new constructions if they are not able to provide water to the existing residents of Pune district. When a problem is existing and known, then in such a case these authorities do not have right to make the problem bigger. Before giving any fresh permission to any new construction, these authorities must attack and solve the water Scarcity problem on war footing. People are losing their patience if the special committee does not start functioning in next couple of weeks, a contempt petition to prosecute all the authorities shall be filed at Bombay high court. Supply of fresh potable water is a constitutional responsibility of all the local bodies under article 243w of the constitution of India and under the s 63 (20) of Maharashtra municipal corporations act. Article 21 of the constitution of India guarantees right to life, and water means life!”

Heavy dependence on ground water

Pune’s heavy dependence on groundwater proves particularly problematic during Maharashtra’s recurrent seasonal droughts. Groundwater serves as a lifeline for lakhs of citizens during these dry spells. However, local authorities have failed to incorporate this essential basic necessity into their planning frameworks, leading to groundwater depletion and the drying up of most wells and borewells post-monsoon.

The ministry of Jal shakti’s guidelines for urban water conservation outlines measures for cities to:

• increase rainwater harvesting
• reuse treated grey water and sewage water
• Rejuvenate urban water bodies, including step wells, ponds, and lakes.

Regrettably, the only noticeable activity is the rampant construction of new buildings, further increasing the Pune district’s population which will create severe water scarcity. The petitioners hope that the high court directed committees be constituted without delay and that they undertake public hearings where citizens can voice their grievances related to water scarcity. The petitioners expect that the committees take requisite steps to ensure that the citizens are provisioned and supplied their rightful water quota.

“we don’t get corporation supply and our dependence is on private water tankers. We don’t understand how building permissions are given without making basic water supply available”, said Tushar Sarode, resident of sus.

“since 2013 our residential buildings do not get a single drop of water from gram panchayat, zilla parishad or PMRDA. We spend lakhs every month to buy private water tankers, till today green olive apartments must have paid crores to local tanker suppliers. What is shocking is that nobody is bothered in the entire government to solve our problems in spite of more than 10 follow up to each authority every year”, added Amrut Khodke, chairman of green olive apartment Hinjawadi.

The petitioners who issued the legal notice and were the original petitioners in the PIL: wagholi housing societies association, Pune district co-operative housing societies and apartments federation, Akhil Bharatiya Grahak panchayat, Pimpri Chinchwad co-operative housing welfare societies federation ltd., Baner – Pashan link road welfare trust, Balewadi residency co-operative housing welfare federation ltd., dear society welfare association, Bavdhan citizens forum, Hinjawadi employees and residents trust, Aundh Vikas Mandal, and association of Nagar road citizens forum noting the outcry in the residents of all urban areas of Pune district due to water scarcity had filed the water PIL at Bombay high court through Satya muley – advocate the supreme court of India and the Bombay high court.

The following parties were made respondents in the water PIL: 1) union of India, department of water resources 2) central ground water board 3) state of Maharashtra – water resources department 4) Maharashtra Jeevan Pradhikaran 5) Maharashtra water resources regulatory authority 6) Pune municipal corporation 7) Pimpri Chinchwad municipal corporation 8) Pune metropolitan region development authority 9) Zila parishad Pune PIL 126/2022 Satya muley advocate the supreme court & the Bombay high court

Neerain is proud to republish this blog for spreading awareness about situation of water, for our stake holders. Credit whatsoever goes to the Author.

This blog is published by: –

https://www.punekarnews.in/punes-water-crisis-petitioners-threaten-contempt-petition-as-pmc-pcmc-pmrda-stay-silent/

Published on: 23rd November 2023

In a new study, researchers found that about 20 percent of river basins have already reached their limit, where groundwater extraction from the ground exceeds that of the stream.

Photo: Ankur Paliwal

Groundwater is the most commonly used source of fresh water throughout the world. According to statistics  , about 200 crore people globally today depend on it for their daily needs and irrigation. According to estimates, 20 percent of the world’s population depends on crops irrigated by groundwater. The pressure on these reserves, which are already under pressure to meet the needs of the rapidly growing population and the continuous increase in crop production, is increasing.

Due to the rapid and uncontrolled way in which we are exploiting groundwater, these groundwater sources are depleting rapidly. On the other hand, these groundwater sources are not being recharged by rain and rivers. Analysis of satellite data obtained by NASA has revealed that the water level of 13 of the world’s 37 major groundwater sources has reached the danger mark. The rate of recharge of groundwater there is much less than the rate of its exploitation. The problem of falling groundwater level is becoming more serious in areas where intensive agriculture is done. Also, due to this, the pressure on rivers to supply water to the agricultural sector is increasing day by day. Assessments show that by 2050, its widespread and serious impacts on rivers, lakes and wetlands around the world will become apparent.

To understand this, an international team of researchers has attempted to measure the rate at which existing groundwater is being mixed into rivers and lakes. Which is called flow of current. He has also studied how the exploitation of groundwater for agriculture has affected this process. The researchers found that about 20 percent of river basins have already reached their limit, where groundwater extraction from the ground exceeds that of the stream. This  study  has been published in the international journal Nature.

Scientists have also used climate change models to predict how river flows will decrease in the future. In which they found that 42 to 79 percent of the world’s groundwater sources will be exhausted by 2050. Due to which they will be unable to maintain their ecosystem. Inge de Graaf, chair of environmental and hydrological systems at the University of Freiburg in Germany, explained what devastating effects this could have in the future.

According to the graph, it is very clear that if there is no water in the stream then definitely the plants and animals living there will die. Also, more than half of the crops which depend on groundwater for irrigation will also be destroyed. According to this latest study published in Nature,  in the valleys of Ganga, Indus and Mexico, where dependence on groundwater for crop production is high, river flow is decreasing due to uncontrolled exploitation and as Africa and Southern Europe The demand for groundwater is increasing in the areas where the impact of serious water crisis will be visible in the coming few years.

The situation is serious in India also

Globally, groundwater is exploited the most in India, where 230 cubic kilometers of groundwater is used every year, which is about a quarter of the global use of groundwater. Scientists have estimated  that in North India, which is the main wheat and rice producing region of the country, groundwater is depleting at the rate of 5,400 crore cubic meters per year. A report released by NITI Aayog  had also expressed concern over the continuously decreasing groundwater level. According to him, by the year 2030, the decline in groundwater in the country will take the form of the biggest crisis. By 2020, groundwater in 21 cities including Delhi, Bengaluru, Chennai and Hyderabad will be on the verge of depletion.

It is noteworthy that to deal with the groundwater crisis, the Modi government had proposed ‘Atal Groundwater Scheme’ in March 2018. Which was to be implemented with the help of the World Bank in a five-year period from 2018-19 to 2022-23. Its goal was to ensure proper and sustainable management of groundwater with everyone’s participation in the seven states of Gujarat, Haryana, Karnataka, Maharashtra, Madhya Pradesh, Rajasthan and Uttar Pradesh, which are facing serious groundwater crisis. But due to lack of Cabinet approval, this scheme has been stuck for the last one and a half years.

How can there be a solution?

Recently, the Intergovernmental Panel on Climate Change had warned in one of its assessments that by 2050 the global population will cross 1,000 crore. It also explained how the threat of global warming can be tackled through proper water management in the agricultural sector. De Graaf noted that many places in the world have achieved success in limiting groundwater use through agricultural techniques, such as in parts of the Mekong Delta in Southeast Asia where water-intensive rice crops were grown as a pilot project. Coconut is being cultivated in place of sugarcane crops.

If we do not wake up today, our future generations will have to face such a groundwater crisis, the effects of which will be no less than a time bomb. Because of the uncontrolled way in which we are exploiting this resource, and due to this the pressure on groundwater sources is increasing. The consequences would be dire as it would take decades to refill these underground water systems.

Neerain is proud to republish this article for spreading awareness about situation of water, for our stakeholders. Credit whatsoever goes to the Author.

This article is published by: –

https://www.downtoearth.org.in/hindistory/water/ground-water/new-study-on-ground-water-resources-67092

 

Author:  Lalit Maurya

Publish On: 04 October 2019

 

The villagers surprised the government and administration by refusing to get a borewell constructed in their village.

Villagers digging wells in Kedia village of Jamui district of Bihar. Photo: Pushyamitra

Pushyamitra

There is a festive atmosphere these days in Kedia village of Jamui district of Bihar. Digging of wells is going on in full swing. 16 wells are to be dug in this only organic village of Bihar. Till now two wells have been completely ready, excavation of the remaining wells is going on. The villagers acquired these wells by fighting with the government. The government wanted to provide them the facility of two state borings, but they said that they only want wells. The underground water level will fall due to boring, some people will get immediate benefit from this, the rest will be deprived. The Bihar government had to bow down to the insistence of the villagers and give permission for the digging of sixteen wells in this village.

Anandi Yadav, a farmer of the village, says, it all started three years ago when Sudhir Kumar, Principal Secretary of the Agriculture Department, came to visit the village. By that time the village had completely adopted organic farming and the Principal Secretary was very happy about this. He had said at that time that when you people are doing so much work then why not give you two state borings for irrigation from the government. But the Principal Secretary was surprised when the people of the village unanimously opposed the state boring and said that if we have to give something then we should give the wells.

After this, a survey of the farmers of the village was conducted and most of the farmers agreed in favor of wells, however, during the survey, some farmers said yes to state boring and the district administration, considering the opinion of those farmers, is preparing to install state boring in Kedia village. Started doing. When the villagers came to know about this, they opposed this plan and gave a written application to the district administration and the state agriculture department that a well should be dug in the village and not a state boring.

After this, when State Agriculture Minister Prem Kumar also came to this village, people told him this. However, even after this the work was not done easily. He had to keep requesting the state government and the district administration. Only then was approval given for 16 wells for the village.

Photo courtesy: villagesquare.in

Today, when wells are being dug in the village, the villagers are very happy. Farmer Sumant Kumar says that ever since organic farming has started in the village, our attitude towards farming has changed. By forming an organization called Jeevit Mati Kisan Samiti, we continuously do new experiments in farming so that the quality of the soil is preserved and our farming can become sustainable. He says that the most interesting thing is that Jamui is considered a water stressed area in Bihar and the water level here is the lowest. But when we are digging wells, water is coming out only at a depth of 17 to 22 feet. We are finding it difficult to collect water.

On Thursday, June 13, State Agriculture Minister Prem Kumar is going to reach Kedia village to lay the foundation stone of these wells. Interestingly, the farmers of the village have also donated 80 decimal land to the state government for these wells at the rate of 5 decimal land per well.

Ishtiaq Ahmed, associated with the organic farming campaign, says that for water conservation, it is very important to conserve soil and increase the amount of organic carbon in it. In this respect, this experiment has its own importance and it is expected that farmers across the state will adopt it. This will help in better conservation of soil and water.

Eklavya Prasad, who is engaged in developing water self-reliance in Bihar through the Megh Pine campaign, says that the way the farmer community has been accepted in Kedia is a big achievement in itself, because the well is the ideal of irrigation with self-management and regulation. The means are there, if anything happens to the well tomorrow, the farmers will not depend on anyone, they can repair it themselves. Under this pretext, the good thinking of the farmers there is also coming to the fore. If the government is digging 16 wells instead of 3-4, then it is also an initiative to promote decentralization, in this respect this decision of the government is also excellent. If water is available there at 17 to 22 feet, then obviously we need to think again about the wells and adopt it. This is positive news not just for Kedia but for entire Bihar. If this campaign is carried forward in a concrete manner then its results will be excellent.

Sanjay Kumar, Deputy Director, Planning and Soil Conservation, State Agriculture Department, calls this experiment very important and says that even though today farmers have to do irrigation through boring, sooner or later the farmers of the state will adopt this model.

Neerain is proud to republish this blog for spreading awareness about situation of water, for our stake holders. Credit whatsoever goes to the Author.

This blog is published by: –

https://www.downtoearth.org.in/hindistory/water/ground-water/maximum-depth-to-water-level-of-134-mbgl-is-observed-in-bikaner-district-of-rajasthan-65970

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Publish On: 11 June 2019

 

 

Among the users of groundwater, America is in the list with 31 percent of the worldwide total, while India is at 15 and Pakistan is at 13 percent.

Photo courtesy: down to earth

Water reserves are decreasing rapidly in North-West India, Central Pakistan and North-West America and water storage is also decreasing in the high plains and central valley of America. This matter has come to light in a new study. This study explains the Earth’s supply of fresh water and strategies to manage it sustainably.  

The study led by the University of Texas at Austin  highlights the relationship between surface and groundwater and suggests different strategies for managing both.

“I like to emphasize that there are multiple solutions and how to optimize them is important,” said Bridget Scanlon, a scientist with the UT Bureau of Economic Geology, a research unit in the Jackson School of Geosciences.

The study used data from satellites, climate models, monitoring networks and nearly 200 scientific papers to analyze Earth’s water supply. In this, it has been found out how water is changing in different areas and what are the reasons behind these changes. 

According to the study, people mainly depend on surface water. Globally, it accounts for 75 percent of irrigation and 83 percent of municipal and industrial supply annually. However, what we see on the surface is linked to groundwater flow. In the US, about 50 percent of annual runoff begins as groundwater. Worldwide, surface water that seeps into the ground accounts for about 30 percent of the annual groundwater supply.

Among the users of groundwater, America accounts for 31 percent of the world’s total, while India accounts for 15 percent and Pakistan accounts for 13 percent. Most of the groundwater is used for wheat, maize, rice, sugarcane, cotton and fodder etc.

Anthropogenic interference can significantly affect the exchange of water between surface and groundwater sources. About 85 percent of the groundwater pumped by people in the US is captured by surface water, causing declines in streamflow. Also, irrigation from surface water can increase groundwater recharge as irrigation water seeps back into the ground through the soil.

The study cites several examples of human activity affecting this flow between surface water and groundwater supplies. For example, surface water irrigation in the Columbia Plateau and Snake River Plain of the northwestern US recharged aquifers in the mid-1900s, while global models show that groundwater pumping has increased the amount of water moving into streams by 15 to 21 percent. The percentage has been greatly reduced. Global watersheds are at risk due to low flows.

Despite their interconnectedness, surface water and groundwater are often regulated and managed as separate resources. According to the researchers, future water availability depends on identifying whether surface water and groundwater are at an interface.

Photo courtesy: pinterest

The study describes various methods of managing water through both natural and engineered solutions that can help increase water supply, reduce demand, store water and keep it flowing. According to Scanlon, one of the best ways to adapt to increasing climate extremes is to store water during times of abundance and use it during times of drought.

He said that we  are facing the brunt of drought and are also struggling with floods. We’re trying to manage those extremes and one way to do that is to store water.

Annually, the world stores about 7,000–8,300 cubic kilometers of water in surface reservoirs. The researchers said it was also important to continue to develop groundwater supplies, as they are more resilient than surface aquifers during prolonged drought.

Managed groundwater recharge can help cities increase their groundwater supplies by collecting surface water and converting it into underground aquifers. Around 10,000 cubic kilometers of water is stored in this way every year around the world.

Photo courtesy: wordpress.com

Scott Tinker, director of the Bureau of Economic Geology, said this type of integrated research linking surface and groundwater is really needed to develop sustainable solutions to issues like freshwater use.

Matthew Rodale, a hydrologist at NASA Goddard Space Flight Center, said the research provides a useful overview of the results and potential solutions for managing water supplies while maintaining water quality. Water quality is one of the next goals in terms of being able to manage water resources , he said . This study has been published in the journal Nature Reviews Earth and Environment.

Neerain is proud to republish this blog for spreading awareness about the situation of water, for our stakeholders. Credit whatsoever goes to the Author.

This blog is published by: –

https://www.downtoearth.org.in/hindistory/water/ground-water/how-to-manage-water-resources-around-the-world-study-88412

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Author: Dayanidhi

Publish On: March 23, 2023

 

Water is everywhere in the world. But the amount of sweet water or usable water is very less . we can say it is the most scarce resource in the world right now. Many research organizations are saying that water will be finished in future. So to save water for our future generations we need to take step to save this resource.

Photo courtesy:Neerain

This can be done in various ways like not wasting water while using in your home. Using required amount of water during car wash or other home washing works. This is the consumption part saving   But if we can save the source part then that will have a great impact on our environment.

So this concept is rain water harvesting. It has been used by many people as it has lot of benefits. In india we have rainy season and it is a better option to use that resource of water. But many people in India don’t go for rainwater harvesting because they think it is an investment which won’t give any profit. But it is a way to making your building green building rather than expense.

Rain water can supplement some of your water needs, if harnessed properly. Harvested rainwater can serve a variety of purposes, some of which include:

Increases ground water recharge

Photo courtesy:Istock

Reduces sea water ingress in coastal areas

Provide water for general purposes

Photo courtesy:Pinterest

There is a tremendous potential for water harvesting in our country . Consider your own building with a flat terrace area of square meters. Assume that the average rainfall in your area is 40” or 1000mm approximately . Thus , even if only 60 percent of total rainfall is harvested , you will be able to harvest 100 x 1.0 x 0.6 = 60 cum i.e. 60,000 litres of water a year.

This volume is more than a year ‘s (about 400 days) domestic water requirement of 1 person , assuming average daily water requirement for domestic use per person is 150 litres.

If we use the stored rainwater only during the monsoons for washing clothes , washing cars etc., you will help in reducing the overall water needed from public utilities and therefore prevent water shortage in the summer.

In some developed countries, buildings are required to supplement their water needs through rainwater harvesting.

What is rain water harvesting ?

Rain water harvesting (RWH) is a technique of collection and storage of rainwater into natural reservoirs or tanks.

How it works ?

The rain water from a large surface is collected I.e from roofs and then collected into underground or overground tanks.

Methods of rain water harvesting :-

There are two types of rain water harvesting.

1. I) Rooftop rain water harvesting
2. II) Surface runoff water harvesting

Surface runoff water harvesting:-

In urban area rain water flows away as surface run off. This surface could be caught up and cane be recharged aquifers.

Rooftop rain water harvesting method:-

In Rooftop rain water harvesting is the technique in which roof water is collected from roofs and then stored in tanks and reservoirs.

It can be applied mostly in urban areas.

Process of rain water harvesting:-

But before knowing the process first we should know about the equipments required for rain water harvesting.

Catchment-

Catchment is the surface area where the rain water will fall and from that it is collected. The surface are is generally rooftop area. It may be flat or sloped.

Collection pipe:-

The surface area is connected to pipe. It may be one or more than one depending upon the size of the surface area.

Then filter:-

Different filters are used for filtering the rain water, such as sand gravel filter, charcol filter, pvc filter etc. The basic work is to filter the water.

First flush device:-

It is used to discharge the first rain water collected from the rain water harvesting system. The first rain water may be contaminated as it purifies the air by washing it. So it is better to avoid the first rain water to use.

Storage tank:-

After the water is filtered it is collected in storage tanks.

Process:-

First the rain water is collected through pipes from the rooftop. Then it is passed through filters to remove impurities. Then it is stored in storage tanks which is used later.

Application of rain water harvesting:-

Rain water collected from rain water harvesting can be used in many works.

Toilet and urinal flushing:-

Toilet and urinal flushing water are used but not directly contacted with human. So it is best to use rain water to that will support to our future requirement of water.

Gardening:-

Rain water can be used for gardening which the best use of it. Generally the trees get rain water during rain, but again this water can be stored to use for watering plants when there is no rain.

Washing of cars/ bikes:-

Every one in today’s world are giving priority for using personal vehicle for having speed transportation. So each people have their own vehicle at home whether it is a car or bike. To take are of them we often wash them and use a lot of amount of water which is great wastage of usable water. If we are using rain water instead of municipal water that be a great help to our environment.

Also bus , trucks can be washed off through this.

Rain water harvesting system is a must for commercial buildings. As they use a lot of amount of water.

To know more such topics go through builtifyblog.

Neerain is proud to republish this article for spreading awareness about situation of water, for our stakeholders. Credit whatsoever goes to the Author.

This article is published by: –

https://blog.builtify.in/2019/08/rain-water-harvesting-builtify.html

We would like to spread this for the benefit of fellow Indians.

Author:   builtify

Publish On: August 21, 2019

Photo courtesy: Santhosh Kumar

Rainwater harvesting has been practiced for centuries as a way to collect and store rainwater for later use. The increasing demand for water, the depletion of groundwater resources, and the adverse effects of climate change have led to a water crisis in many parts of the world. Rainwater harvesting has the potential to be a sustainable solution to address this crisis. However, it is essential to find innovative ways to make it more efficient, effective, and sustainable.

In contemporary times, there is a need to reimagine rainwater harvesting to make it more efficient and effective, and to adapt it to the current environmental, economic, and social challenges we face.

Here are some ideas for how to reimagine rainwater harvesting:

Photo courtesy:Shuttterstocks

1. Smart Rainwater Harvesting: With the advent of smart technology, rainwater harvesting can be made more efficient by using sensors and data analytics to optimize the collection and use of rainwater. For example, sensors can be installed to monitor rainfall, water levels, and water quality, and this data can be used to automatically adjust the flow of water to different storage tanks or to trigger alerts when water quality falls below a certain level.
2. Multi-functional infrastructure: Rainwater harvesting systems can be designed to serve multiple functions, such as providing irrigation water for landscaping or serving as a source of water for fire-fighting. This can increase the overall value of the system and make it more attractive to homeowners, businesses, and municipalities.
3. Green roofs and walls: Green roofs and walls can be used to capture rainwater and reduce stormwater runoff. By integrating rainwater harvesting systems into green infrastructure, we can create more sustainable and resilient urban environments.
4. Community engagement: Rainwater harvesting systems can be used to build community engagement and awareness around water issues. By involving the community in the design, implementation, and maintenance of rainwater harvesting systems, we can create a sense of ownership and pride in the system, and increase the likelihood of its long-term success.
5. Recharging aquifers to increase water table: Rainwater is collected and can be allowed to seep into the ground, which helps recharge the aquifers. This process not only helps increase the water table but also reduces the demand for freshwater resources.

Rainwater harvesting can be an effective method for recharging aquifers, especially in areas that receive high rainfall but lack proper storage facilities. It can also help prevent flooding and erosion, and improve soil moisture content.

6. Economic incentives: Economic incentives, such as tax rebates or subsidies, can be used to encourage the adoption of rainwater harvesting systems. This can help to overcome the initial cost barriers associated with installing these systems and make them more accessible to a wider range of stakeholders.

Overall, there are many ways to reimagine rainwater harvesting and adapt it to contemporary times. By using smart technology, integrating rainwater harvesting into green infrastructure, engaging the community, and providing economic incentives, we can create more sustainable and resilient water systems that benefit everyone.

Neerain is proud to republish this article for spreading awareness about situation of water, for our stakeholders. Credit whatsoever goes to the Author.

This article is published by: –

https://timesofindia.indiatimes.com/blogs/voices/need-to-reimagine-rainwater-harvesting-and-adapt-it-to-contemporary-times/

We would like to spread this for the benefit of fellow Indians.

Author:   Gurmit Singh Arora

Publish On:  May 8, 2023,

The government school in Kora village in Tumakuru has enough water for drinking, cooking, washing and gardening purposes thanks to the rainwater harvesting system installed with the help of the non-profit Biome.

With the onset of the monsoon season, Government Model Higher Primary School in Kora village in Tumakuru has been capturing every drop of rain that fell from the sky. All photos by arrangement.

Water situation in Karnataka is worrisome as several districts in the state have received deficient rainfall in the southwest monsoon season that ended last month. The region of south interior Karnataka is particularly affected, and sharing of Cauvery river’s water between Karnataka and Tamil Nadu has become a hot topic for dharna and protests.

But a village school in Tumakuru district in rain-deficient south interior region of Karnataka is not worried about the looming water crisis.

The government school has enough water for drinking, washing and gardening purposes. And the water — harvested rainwater — has been a ‘free’ gift from the heavens above.

Since June this year, with the onset of the monsoon season, Government Model Higher Primary School in Kora village in Tumakuru has been capturing every drop of rain that fell from the sky on the school premises located over 70 kilometres from the state capital Bengaluru.

Today, the rural school with 208 children studying in classes one to seven has sufficient water to use for its cooking, gardening, cleaning and drinking purposes. For drinking and cooking, the harvested rainwater is filtered with the help of RO (reverse osmosis) so that it is clean and safe to drink for the students and staff.

Also Read: Gaon Connection Launches ‘The Changemakers Project’ to Build a National Registry of Changemakers

The credit for making the school self-sufficient in water goes to Madhusudan Rao, headmaster at the school, who thought up a plan to capture, store, treat and use rainwater in his school. In a changing climate, with rainfall patterns changing, harvesting every drop of rainwater that falls on the ground is the need of the hour.

Rao has been raising awareness about various environmental issues, including water conservation, here, he is explaining his students about the rainwater harvesting system.

“I wanted to set up a rainwater harvesting system in the school. It made so much sense because it is cost effective, and promotes both water and energy conservation,” the 57-year-old headmaster told Gaon Connection.

Rao has taught for 33 years and is actively involved in the People Science Movement that popularises science and scientific outlook amongst people. He also volunteers at the Tumkur Science Centre where he raises awareness about various environmental issues, including water conservation.

To execute the rainwater harvesting plan at his school, the headmaster got in touch with Bengaluru-based Biome Environmental Solutions, which works on ecological architecture and intelligent water and sanitation designs. Biome’s rainwater harvesting work is supported by Wipro Cares, an employee-led community initiative arm of the Wipro Foundation.

Also Read: Harvesting rainwater saves the day for residents of a tribal village in Jharkhand

“First of all with the help of Biome, we identified our catchment area to capture rainwater and then started digging to collect raindrops that fall within our school premises. We now have one tank, which has the capacity of 19,250 litres, and stores rainwater,” explained Rao. This much water can meet the school’s water needs for two months.

Explaining how the rainwater harvesting system at the school works, Shivananda R S, a team leader at Biome, said: “We calculate sump [storage tank] capacity based on the rooftop area available for harvesting. The first one millimetre of rainwater which washes the terrace is let out through the first rain separator controlled by a valve.”

“Afterwards the cleaner water is passed through a masonry or wall mounted filter and stored in a rainwater sump. The stored rainwater is then pumped to an overhead tank and reused,” he added.

The rainwater harvesting system was installed in June this year. By the end of August, there was enough water for the school to use for its cooking, gardening, cleaning and drinking purposes. The water is filtered before using for drinking purposes.

According to Shivananda, the school harvests 560 kilo litres (KL) of water out of which 280 KL is stored and reused, and 280 KL is recharged annually.

https://youtu.be/iQfZk_-1Iog

The entire project of installing the rainwater harvesting system in school has been a learning process for the students too. Headmaster Rao ensured that the students watched and participated in the installation of the system.

“When the plant was being set up, we were told about rainwater harvesting and how it had huge advantages. Rao Sir told us how it was important to conserve water and not squander it so that we could avoid a water crisis in the future,” Sandhya Rani, a 13-year-old student of class 7 told Gaon Connection.

“We learnt how water can be reused for our day-to-day activities such as flushing of toilets, cleaning, gardening and cooking,” she added.

According to Shivananda, the harvested rainwater will not be able to meet the school’s water needs throughout the year, but can take care of its water requirements to a great extent. This means reducing dependence on external sources of water, such as borewells that exploit groundwater, or tankers that source water from far.

Every drop counts, as rainwater harvesting experts often point out.

Also Read: In these villages in Jaisalmer, every house has a traditional ‘beri’ to collect rainwater

Biome has been working with four schools to promote rainwater harvesting. Of these, the rainwater harvesting system is already functional in three schools and is under construction in the fourth school. The non-profit designs rainwater harvesting with inputs from schools and involves the students, teachers, and School Development and Monitoring Committee members.

“We also conduct water literacy activities in the school. We give children water quality kits, rain gauges to measure rainfall, setting up vegetable and fruit gardens, etc. We also handhold the school by maintaining the rainwater harvesting system for at least a year, till the school can function on its own without us,” said Shivananda.

https://youtu.be/sXEeizzpD_I

Neerain is proud to republish this article for spreading awareness about situation of water, for our stakeholders. Credit whatsoever goes to the Author.

This article is published by: –

https://www.gaonconnection.com/amp/thechangemakersproject/changemakers-project-karnataka-rainwater-harvesting-biome-tumakuru-reuse-restore-water-conservation-52791

Author:  Laraib Fatima warsi

Publish On: 10 / Oct / 2023