Treatment and Purification

  • 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 weeks 4 days 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 3 weeks 3 days 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 3 weeks 3 days 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 3 weeks 3 days 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 4 weeks 21 min 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 1 month 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 1 month 3 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 1 month 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 2 months 2 days 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 2 months 2 weeks agoread more
  • We presently have BRIM media over coarse aggregate of sand and pebbles in a 200 litre drum. Well water is pumped into this drum and the clean filterate from the bottom goes into our water tank by gravity. However this installation is over 10 years old and I think the BRIM media is not effective. If ...
    rajiv.chennaiposted 2 months 2 weeks agoread more
  • The current set of government programmes such as Swachh Bharat Mission (SBM), National Rural Drinking Water Programme (NRDWP) and Atal Mission for Rejuvenation and Urban Transformation (AMRUT) have gone a long way in improving access to water and sanitation services in India. With an eye on achievin...
    arathiposted 2 months 2 weeks agoread more
  • Rampura, situated in Bulandshahr district in western Uttar Pradesh, is one of the 1,200 villages on the banks of the 300-km long East Kali, a tributary of the Ganges. The river is named after goddess Kali who, according to the Hindu mythology, is fierce and fights evil by ingesting it. Till the 198...
    Amita Bhaduriposted 3 months 3 weeks agoread more
  • Located in Uttar Pradesh’s Baghpat district, with vast agricultural fields growing sugarcane, rice, wheat, jowar, chana and all kinds of seasonal vegetables, Dhikoli in Pilana tehsil comes across as a bustling and prosperous village. Barely an hour-long car ride from New Delhi, it is home to 15000...
    arathiposted 4 months 2 days agoread more
  • I purchased a new RO water purifier system. Bore water TDS level is 650 PPM, after RO purification water TDS level is 70 PPM and reject water TDS level is 180 PPM. My doubt is that the TDS level of reject water is less than the borewell water - is it right or wrong?
    Anonymous (not verified)posted 4 months 1 week agoread more
  • Kakkoos, a compelling documentary film on manual scavenging in Tamil Nadu is all about showing the practice as it is without any filter. The pictures are shocking and watching them is easier said than done -- toilets teeming with shit, sanitary napkins lying scattered, people collecting faeces with ...
    Amita Bhaduriposted 4 months 2 weeks agoread more
  • Over the years, the increasing population and urbanisation have meant growing shortage of land for disposal of domestic greywater, indiscriminate cutting down of forests for biomass production and lesser availability of water for irrigation. Indian researchers have found a one shot solution that can...
    arathiposted 4 months 2 weeks agoread more
  • i would like to start a packaged drinking water plant in western maharashtra. i would like to to know the investment involved in it.
    Anonymous (not verified)posted 4 months 2 weeks agoread more
  • We have 12+ acres of arecanut plantation land with very good (excessive) spring water source. There are 3 spots where spring is erupting the water all around the year. As its getting wasted, I wanted to make use of it, we need very minimal water for the agriculture and rest is wasted... I wanted to ...
    Anonymous (not verified)posted 4 months 3 weeks agoread more
  • Present TDS level is 24, is this within the accepted range / limit?
    Anonymous (not verified)posted 4 months 3 weeks agoread more

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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.

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, a weed known for its ability to spread rapidly over water bodies. It is used for cleansing polluted water bodies owing to its remarkable capacity of absorbing pollutants. 

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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 retreating this water and please don't tell me to use in gardens, in toilets, etc.

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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 house I have made arrangements to collect the rainwater in sumps. But I afraid will there be any dengue mosquitoes here - please advise.

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Regions

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

Topics

Sub-Categories

Regions

A new method developed by a team of Indian researchers uses nanoparticles to remove fluoride from drinking water.

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. 

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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 that BSI (https://www.bsigroup.com/en-IN/) certification can suffice our purpose for 20 ltr jars ONLY. Kindly advice whether this is an authentic source or not. Awaiting your kind response.

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Though informal e-waste handling, segregation and import are prohibited by the law, e-waste business is thriving in the country.

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 and also burn circuit boards in the hope of extracting precious metals. From old electronics to spent batteries, they handle all items that head to the waste pile with bare hands.

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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 get the opportunity to plan and design the Rainwater harvesting and decentralised wastewater treatment systems as part of ‘Do It Yourself ‘- group exercise. 

September 25, 2017 9:00AM - September 29, 2017 6:00PM

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An innovation makes it possible to treat water even before it leaves a hand pump or a borewell, giving easy access to safe water in remote areas.

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.

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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).

Topics

Sub-Categories

Regions

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