Reply by the Central Pollution Control Board (CPCB) in compliance to the National Green Tribunal (NGT) order dated January 21, 2024 in the matter of ‘News item titled “Feeling anxious? Toxic air could be to blame” appearing in Times of India dated 10.10.2023’. NGT had directed CPCB to file a …
with the advent of a new technology to remove chloroform, it has now become possible to clean and reuse the wastewater from pharmaceutical plants. Called the Purolite adsorbant technology, it removes chlorinated solvents from wastewater streams. Not only does it prevent the release of possibly dangerous wastes but can also …
The breaking down of toxic organic material is very important in the process of purifying water. Now, researchers at the Fraunhofer Institute for Thin Films and Surface Engineering, Germany have found that diamond-coated electrodes destroys even compounds such as polychlorinated hydrocarbons. Diamond electrodes are especially well-suited for conversion of organic …
both the public as well as the industry in Chennai frequently face acute water problems. Sometimes, industrial units are left with no option but to close down. Madras Fertilisers Ltd ( mfl ) and Madras Refineries Ltd ( mrl ), located at Manali on the outskirts of the state capital …
Nearly half of Bangladesh's 130 million population will get a reprieve following the recent successful research in the treatment of arsenic contaminated water. Called the Direct Coprecipitation Filtration ( dcf ), "the technique uses an iron coagulate tablet that is immersed into a bucket of water,' said Xiaoguang Meng, an …
much water has flown under the bridge in an attempt to develop a technology that will determine levels of pollution in rivers. Now, a new laser-based technology has been introduced in the uk to perform this task in English rivers and monitor discharges from chemical works and sewage into the …
ECO-FRIENDLY INCINERATOR: To combat the growing pollution in Chennai, an eco-friendly incinerator for combustion of non-compostable garbage has been commissioned at the Akash Colony in Anna Nagar West as part of its Zero Garbage Plant project. Anaerobic composting is already being carried out in the colony with kitchen waste. The …
EXPERTS from China, Bhutan, India, Pakistan and Nepal reviewed their respective government's policies on water harvesting in the Himalayan region at a workshop at International Centre for Integrated Mountain Development (icimod), Kathmandu, on the March 14-16, 1999. Attended by academicians, researchers, government officials, grassroots functionaries and beneficiaries of water harvesting …
US researchers have developed a technique that can not only help recover precious metals, such as gold, but also clean up waterways contaminated with toxic metals like lead, mercury and chromium. The method has been developed by scientists at the us department of energy's (doe) Pacific Northwest National Laboratory in …
a solar-powered pump has been developed in the uk which is simple and economical. The pump's solar panel captures the Sunlight that can provide sufficient energy to pump up to 4546 litres of water a day under average tropical conditions from depths of up to eight metres, according to a …
At a recently concluded Kerala Science Congress in Calicut, 275 papers on various subjects were presented by young scientists. Only men below the age of 35 and women below 40 years are allowed to present papers. The scientists urged to strike a balance between development and environment with a view …
in india, 90 per cent of the water supplied to the towns and cities is polluted, out of which only 1.6 per cent gets treated, says the central pollution control board. Of the nation’s 3,119 towns and cities, only eight boast of complete sewage collection and treatment facilities. Hair-raising figures, …
uasb is a combination of physical and biological processes; the main feature of the former process is the separation of solids and gases from the liquid and that of the latter, degradation of decomposable organic matter under conditions which do not require oxygen. The treatment tank (see figure: Cross-section of …
• The Damodar is the most polluted river, carrying discharges from 43 major industries and scores of minor units. • In Delhi, 19,000 cubic metres (cu m) of water containing DDT derivatives from agriculture are dumped into the Yamuna daily. • Sixty-eight industrial units discharge 1,000 cu m of untreated …
• Low space requirement • Low sludge production with quick dewatering characteristics • Lesser and simpler electromechanical parts used, leading to low operation and maintenance costs • Low power requirements and ability to withstand long power failures • Sludge digestion quicker compared to conventional digesters • Generation of biogas, which …
• Aerobic systems: require aeration, are energy- and capital-intensive, do not result in any by-product, produce excessive sludge and are difficult to handle • Lagooning: requires extensive land • Well-designed ponds: treatment is partially aerobic and partially anaerobic; land and time requirements are high • Anaerobic systems: not as energy- …
It is a pity that instead of Indian researchers, it was a Dutch scientist who developed such a simple technology. India prides itself over its gobar gas plant legacy. When questioned as to why gobar gas technology was not extended to treat domestic sewage, officials from the ministry of non-conventional …
ashok Gadgil, a scientist at the Lawrence Berkeley National Laboratory (lbnl), California has invented a device that uses ultraviolet (uv) rays to disinfect water. The invention could dramatically improve health conditions in India and other Third World countries. The uv purifier, called uv Waterworks, uses just a fraction of energy …
Welcome to the official website of the 2015 International Conference on Water Technology (ICWT 2015) will be held during June 25-26 in Bangkok, Thailand. ICWT 2015, is to bring together innovative academics and industrial experts in the field of Water Technology to a common forum.The primary goal of the conference …
