User:Odiallo3/Water supply and sanitation in India
Rainwater harvesting[edit]
[edit]Tamil Nadu was the first state to make rainwater harvesting compulsory for every building to avoid groundwater depletion. The project was launched in 2001 and has been implemented in all rural areas of Tamil Nadu. Posters all over Tamil Nadu including rural areas create awareness about harvesting rainwater. It gave excellent results within five years, and slowly every state took it as a role model. Since its implementation, Chennai had a 50% rise in water level in five years and the water quality significantly improved.
Karnataka: In Bangalore,of rainwater harvesting is mandatory for every owner or the occupier of a building having the site area measuring 60 ft (18.3 m) × 40 ft (12.2 m) and above and for a newly constructed building measuring 30 ft (9.1 m) × 40 ft (12.2 m) and above dimensions. In this regard, Bangalore Water Supply and Sewerage Board has initiated and constructed “Rain Water Harvesting Theme Park” in the name of Sir M. Visvesvaraya in 1.2 acres (4,900 m2) of land situated at Jayanagar, Bangalore. In this park, 26 different types of rainwater harvesting models are demonstrated along with the water conservation tips. The auditorium on the first floor is set up with a "green" air conditioning system and will be used to arrange the meeting and showing of a video clip about the rainwater harvesting to students and the general public. An attempt has been made at the Department of Chemical Engineering, IISc, Bangalore to harvest rainwater using the upper surface of a solar still, which was used for water distillation
![](http://upload.wikimedia.org/wikipedia/commons/thumb/0/0e/Rainwater_Harvesting.jpg/220px-Rainwater_Harvesting.jpg)
In Rajasthan, rainwater harvesting has traditionally been practiced by the people of the Thar Desert. Many ancient water harvesting systems in Rajasthan have now been revived. Water harvesting systems are widely used in other areas of Rajasthan, as well, for example, the chauka system from the Jaipur district.
In Pune (Maharashtra) rainwater harvesting is compulsory for any new housing society to be registered. In Mumbai, Maharashtra, rainwater harvesting is not mandatory. The Municipal Corporation of Greater Mumbai is planning to make rainwater harvesting mandatory for large societies.
Wastewater treatment[edit]
[edit]![](http://upload.wikimedia.org/wikipedia/commons/thumb/d/de/Wastewater_stream.jpg/220px-Wastewater_stream.jpg)
In India, wastewater treatment regulations come under three central institutions: "The Ministry of Environment Forest and Climate Change (MoEF&CC), the Ministry of Housing and Urban Affairs (MoHUA), and the recently formed Ministry of Jal Shakti." The various water and sanitation policies such as the "National Environment Policy 2006" and "National Sanitation Policy 2008" also lay down wastewater treatment regulations. State governments and local municipalities hold responsibility for the disposal of sewage and construction and maintenance of "sewerage infrastructure." Their efforts are supported by schemes offered by the Government of India, such as the National River Conservation Plan, Jawaharlal Nehru National Urban Renewal Mission, National Lake Conservation Plan. Through the Ministry of Environment and Forest, India's government also has set-up incentives that encourage industries to establish "common facilities" to undertake the treatment of wastewater.
Recent initiatives include the 'National Water Policy 2012' that promotes efficient use and water management, recycling and reuse of wastewater, water supply and sanitation, and efficient water pricing.
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