Treatment and Purification

  • “Sometimes I go for open defecation, sometimes I use the toilet. It’s not like I always have to use the toilet. When I go for work here and there, I defecate in the jungle,” says Renu from one of the remote villages in Tehri Garwal district of Uttarakhand when asked why she does not use latrin...
    aarti kelkar kh...posted 1 day 22 min agoread more
  • Urmila Devi lives in Chaitabazaar village which is barely five kilometres from the eastern bank of the Burhi Gandak river. It is located in a particularly flood-prone area of East Champaran in north Bihar. The drinking water quality in this area is poor. The recurrent floods only make it w...
    Amita Bhaduriposted 1 week 4 days agoread more
  • Concerned with contaminated water sources in rural areas, the Centre plans to provide piped water supply (classified as an improved water source by the WHO & UNICEF Joint Monitoring Report) to 80 percent rural households in the country by 2022. Better access to drinking water is certainly good n...
    aarti kelkar kh...posted 1 week 6 days agoread more
  • In Solapur, Maharashtra, water quality of tap supply is (with reference to BIS 10500): Turbidity 0.32 pH 7.62 Chlorides 168.0 Nitrates 2.41 Total hardness 340 Alkalinity (as CaCO3) 322 TDS 714 Iron 0.06 Fluoride 0.46   Normally RO filters are being used but it is wasting lot of water...
    Anonymous (not verified)posted 2 weeks 4 hours agoread more
  • The theme for the Conclave this year is “Water Use Efficiency: An Imperative for India” to highlight the imperative of water use efficiency in the industry, agriculture and urban contexts.  The Indian economy at present is struggling with excessive population growth and changing water reso...
    Water Awards 2016posted 2 weeks 3 days agoread more
  • In India, most families depend on borewell or well water. Most cities like Bangalore, Mumbai, Pune, etc get well or borewell water for drinking. Borewell water is usually safe to drink but it is not 100 percent pure because of its hardness and contamination level. Your borewell water might contain b...
    Anonymous (not verified)posted 3 weeks 4 days agoread more
  • The 15th EverythingAboutWater Expo 2018 will be held on August 23-25, 2018 | Hall No. 12A, Pragati Maidan, Delhi, India The Expo will be one of the most unique and comprehensive annual water events in India showcasing latest technologies in the water and wastewater management sector. Also reco...
    EA Water Pvt Ltdposted 3 weeks 4 days agoread more
  • Solawata, a small village in Jaipur district is barely 10 kilometers away from Sambhar, India's largest saline lake which is a major centre of salt production that produces about two lakh tonnes of salt a year. On our way to the village from Sambhar, we see caravans packed with bright coloured camel...
    Amita Bhaduriposted 1 month 6 days agoread more
  • 1. We are an apartment complex with 320 families and a Aerobic STP of 1,50,00LPD. We have recently started using STP treated water into toilet flushing. Since same water is re-circulated repeatedly, I am concerned that URIC ACID concentration will get higher over a period of time as it never gets el...
    Anonymous (not verified)posted 1 month 1 week agoread more
  • In India, fresh water is depleting fast with the rise in consumption for economic activities. Poor management of water resources has led to overexploitation of groundwater. The World Resources Institute’s March 2016 report said 54 percent of India was water stressed, with scarcity affecting every ...
    arathiposted 1 month 2 weeks agoread more
  • Heavy metal poisoning is a growing concern in many parts of the country. A new method for removing chromium-6, a highly toxic heavy metal, from waste water has been developed by a group of scientists from India and Ethiopia. They claim it to be low-cost and safe. The new method uses water hyacinth,...
    priyadposted 2 months 2 weeks agoread more
  • Hi. I am a student participating in a science project on the re-treatment of RO reject water. I have a small doubt - can the rejected water obtained from a RO plant be subjected again to reverse osmosis? Is it cost efficient? Or can it be treated by bio- remediation? Please give me a possible way of...
    Anonymous (not verified)posted 2 months 3 weeks agoread more
  • Mosquitoes spreading dengue are formed in water storage units. If rain water is stored in sumps there may be a chance for breeding of dengue mosquitoes. Dengue is a very dangerous virus resulting in death. Here in our area (Hosur, Krishnagiri District, Tamil Nadu) dengue is spreading fast. In our ho...
    Anonymous (not verified)posted 2 months 3 weeks agoread more
  • There is a higher BOD and COD rate. Capacity of kitchen waste-water is 5 m3/day. Could someone please suggest me how to treat this waste-water and what is the reason for too much rate of BOD & COD? BOD: 4100 mg/L COD: 7000 mg/L
    ruchimanavposted 2 months 3 weeks agoread more
  • A low-cost method to remove fluoride from drinking water with specially made teabag-like pouches has been developed by a team of Indian researchers.  This method uses pouches covered with nanoparticles synthesised from organically-grown jojoba seeds to remove fluoride from water. Jojoba is eas...
    arathiposted 2 months 3 weeks agoread more
  • Dear Concern, We want to set up an water production unit only for 20 Ltr, Jars. Kindly advice whether BIS certification is mandatory for the Same ? If yes, kindly advice the approximate cost for the same if we want to set up the unit in Kolkata , West Bengal From a Local Newspaper we got to know tha...
    Anonymous (not verified)posted 3 months 2 weeks agoread more
  • Take a walk through the maze of lanes at Seelampur in north-east Delhi, you could see small children rummaging through electronic waste that has made its way here from all over north India. They segregate end-of-life electrical and electronic products, prise them apart, put them through acid wash an...
    Amita Bhaduriposted 3 months 2 weeks agoread more
  • The training programme will follow a mix method approach involving lectures, in-class exercises, interactive discussions and audio-video training support. A full-day field exposure visit will be organised for participants to explore best management practices on RWH and DWWTs. The participants will g...
    swatiposted 3 months 3 weeks agoread more
  • The United Nations, in its sustainable development goals (SDGs), has earmarked 2030 as the year by which universal and equitable access to safe and affordable drinking water for all is to be achieved. To be able to do so, we would need to ensure that the 663 million people who currently drink water...
    arathiposted 4 months 1 day agoread more
  • We have requested water test of sample post RO process at Home. Before RO process hardness of water is 400 PPM and after 52 PPM Below is the result of water test (only those are beyond limits are mentioned). Fluoride 1.22 mg/l (value obtained) 1 mg/l (MAX ACCEPTABLE LIMIT (AS PER IS 10500:2012) ) 1,...
    Anonymous (not verified)posted 4 months 2 weeks agoread more

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A study from remote villages in rural Uttarakhand finds that toilet use is influenced by geography, accessibility, availability of infrastructure and occupation of villagers.

“Sometimes I go for open defecation, sometimes I use the toilet. It’s not like I always have to use the toilet. When I go for work here and there, I defecate in the jungle,” says Renu from one of the remote villages in Tehri Garwal district of Uttarakhand when asked why she does not use latrines every day.

Although there is a government-constructed latrine with a water tap that she and her family use when they are at home, she sees no point in coming back home to use the toilet when she goes out to graze animals or to collect firewood a long way into the jungle.

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A new biosand filter is revolutionising water purification in rural India with increased filtration, better portability and affordability.

Urmila Devi lives in Chaitabazaar village which is barely five kilometres from the eastern bank of the Burhi Gandak river. It is located in a particularly flood-prone area of East Champaran in north Bihar. The drinking water quality in this area is poor. The recurrent floods only make it worse.

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A study from rural Maharashtra finds piped water supply does not guarantee safe drinking water. Water treatment, storage and WASH practices influence water quality.

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In Solapur, Maharashtra, water quality of tap supply is (with reference to BIS 10500):

Turbidity 0.32
pH 7.62
Chlorides 168.0
Nitrates 2.41
Total hardness 340
Alkalinity (as CaCO3) 322
TDS 714
Iron 0.06
Fluoride 0.46
 
Normally RO filters are being used but it is wasting lot of water, please suggest a suitable method that makes the water potable without wasting it. Thanks

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The theme for the Conclave this year is “Water Use Efficiency: An Imperative for India” to highlight the imperative of water use efficiency in the industry, agriculture and urban contexts

November 28, 2017 10:00AM
November 27, 2017 12:00PM

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Borewell water is used for drinking in many parts of India. Here are some purifiers you can use if the water is impure or hard.

In India, most families depend on borewell or well water. Most cities like Bangalore, Mumbai, Pune, etc get well or borewell water for drinking. Borewell water is usually safe to drink but it is not 100 percent pure because of its hardness and contamination level. Your borewell water might contain bacteria, viruses and heavy metals like arsenic, fluoride, lead, etc. In simple words, water gets its hardness from dissolved calcium and magnesium in the water. Borewell water tastes a little sour but it generally doesn’t pose any health hazard. 

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The 15th EverythingAboutWater Expo 2018 will be held on August 23-25, 2018 | Hall No. 12A, Pragati Maidan, Delhi, India

August 23, 2018 9:30AM - August 25, 2018 6:00PM
August 23, 2018 9:30AM

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A Rajasthan village gets to drink sweetwater despite high salinity in its groundwater, thanks to a solar-powered desalination unit.

Solawata, a small village in Jaipur district is barely 10 kilometers away from Sambhar, India's largest saline lake which is a major centre of salt production that produces about two lakh tonnes of salt a year. On our way to the village from Sambhar, we see caravans packed with bright coloured camel saddles parked on the road. In sharp contrast, the villages on the way look dry and dreary with their bleak infertile lands.

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1. We are an apartment complex with 320 families and a Aerobic STP of 1,50,00LPD. We have recently started using STP treated water into toilet flushing. Since same water is re-circulated repeatedly, I am concerned that URIC ACID concentration will get higher over a period of time as it never gets eliminated but keeps building up. I fear this may lead to fowl smell in toilets eventually. Please elaborate on this aspect, how to measure URIC ACID, how to reduce it etc. 2.

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Desalination of seawater is emerging as a solution to global water crisis. India, too can benefit from it.

In India, fresh water is depleting fast with the rise in consumption for economic activities. Poor management of water resources has led to overexploitation of groundwater. The World Resources Institute’s March 2016 report said 54 percent of India was water stressed, with scarcity affecting every part of the country except the Himalayan region and the ghats. “Almost 600 million people are at higher risk of surface water supply disruptions,” the report said, attributing water stress to climate change and poor water management.

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