In India there is an enormous amount of polluted rivers in the district of Pune and the government is trying to reclaim the Mula, Mutha on the Pawn and the Bhima, now invaded by discharges of all types, from those at chemical and industrial sewage.
The water that comes in about 300 villages in the area of \u200b\u200bPune and 26 villages in the area of \u200b\u200bTaluka Shirur, is unusable for human consumption, for irrigating fields.
The Commission sent by the Government, which has become a visual account of the problem (thin film of oil on water), it was put to work trying to collaborate with the industries which discharge the scraps, trying to induce them to use purification treatments.
But the novelty of the government, particularly the idea of \u200b\u200busing on an experimental basis, the technique of reverse osmosis.
It 's a process that is commonly used for desalination of sea, as it leads to a reverse osmosis separation of salt from water molecules.
The filtering method removes large molecules in water by applying pressure on one side of a selective membrane, and then pass the pure solvent on the other side.
The study of economic feasibility of the project has yielded good results, although one must remember that the water to "clean" is important since 40-45% of untreated sewage discharged directly into rivers in Pune. The projections warn that it will take another 3 years to safely treat 100% of the wastewater.
In another part of the world instead it was decided to use osmosis to produce energy.
In Norway, in 2009 created a power plant osmotic energy derived from exploitation, a new clean energy obtainable from the flow of water from a solution to lower salt concentration (fresh water) to a greater (Salt water) at the mouths of rivers.
energy is generated using the hydrostatic pressure that is created when fresh water flows through a special membrane of salt water.
Norwegians (Statkraft) as the Dutch (Wetsus), are rich in regions where salt water and fresh water meet.
The water that comes in about 300 villages in the area of \u200b\u200bPune and 26 villages in the area of \u200b\u200bTaluka Shirur, is unusable for human consumption, for irrigating fields.
The Commission sent by the Government, which has become a visual account of the problem (thin film of oil on water), it was put to work trying to collaborate with the industries which discharge the scraps, trying to induce them to use purification treatments.
But the novelty of the government, particularly the idea of \u200b\u200busing on an experimental basis, the technique of reverse osmosis.
It 's a process that is commonly used for desalination of sea, as it leads to a reverse osmosis separation of salt from water molecules.
The filtering method removes large molecules in water by applying pressure on one side of a selective membrane, and then pass the pure solvent on the other side.
The study of economic feasibility of the project has yielded good results, although one must remember that the water to "clean" is important since 40-45% of untreated sewage discharged directly into rivers in Pune. The projections warn that it will take another 3 years to safely treat 100% of the wastewater.
In another part of the world instead it was decided to use osmosis to produce energy.
In Norway, in 2009 created a power plant osmotic energy derived from exploitation, a new clean energy obtainable from the flow of water from a solution to lower salt concentration (fresh water) to a greater (Salt water) at the mouths of rivers.
energy is generated using the hydrostatic pressure that is created when fresh water flows through a special membrane of salt water.
Norwegians (Statkraft) as the Dutch (Wetsus), are rich in regions where salt water and fresh water meet.
The Statkraft estimates that Europe has the potential for osmotic power is equal to 180 TWh per year, or about 50% of electricity currently produced at ' inside the European Union.
Source: (Expressindia)
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