India is emerging as a key player in exercising influence over the global climate change initiatives, and no significant global reduction of green house emissions can be attained without active Indian participation.

With iron oxide nanoparticles The millions of arsenic victims living in Bangladesh and India have another option for obtaining clean drinking water. Finely divided iron oxide nanoparticles (ionps) can remove arsenic from contaminated water. Iron-containing compounds have been used in purifying groundwater. By the property of adsorption, arsenic can bind to the solid surface of iron.

Jalandhar: Detection of high level of uranium in water in the Malwa belt of Punjab, especially in Bathinda, Faridkot, Mansa, Sangrur, Muktsar and Moga districts, have virtually halted the installation of reverse osmosis (RO) plants, set up by the state government, for safe water to villagers.

THIRUVANANTHAPURAM: The going has been good so far for the Thiruvananthapuram scheme of the Japan Bank for International Cooperation (JBIC)-assisted Kerala State Water Supply Project (now known as the Japan International Cooperation Agency [JICA]-assisted project). The Rs 300-crore Thiruvananthapuram scheme of the Rs 2,590-crore project has made enough progress, officials say.

In geochemical studies of water it is a general practice to filter the water samples through a 0.45 ?m membrane. Filtered samples are then acidified with a mineral acid (mostly nitric acid) to a pH

Excessive use of underground water of the capital through deep tube wells, and filling up of low-lying land, canals and water bodies are causing the underground water level to drop alarmingly.

Experts say that this could put the city dwellers in severe water crisis in future and also cause land to subside.

The ministry of special initiatives is using expensive and difficult-to-maintain technology in setting up of water filtration plants in the country despite concerns shown by the officials from the ministry of science and technology, sources told Dawn.

Defluoridation is removal of excess fluoride from water. Several methods have been suggested for removing excess fluoride in water. One of such is adsorption. Present study has been conducted to investigate the efficacy of sludge of water treatment plant as defluoridating adsorbent material. The experiment has followed batch process.

The high fluoride level in drinking water sources in many parts of India and its impact on human health has increased the importance of defluoridation studies. Several individual studies have been conducted using different defluoridation techniques; but the number of comparative studies is less in literature.

The quintessential example of large scale municipal wastewater reuse is the new Groundwater Replenishment (GWR) System in Orange County, CA. The system treats clarified secondary municipal wastewater effluent and, utilising microfiltration, reverse osmosis and advanced oxidation to produce 70mgd of reclaimed water.

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