Friday, November 19, 2010
Important Methods in Water Management
Many communities accept that there is growing demand for water and thinking ahead about water security or management. Methods of water management can be classified as Conservation, Allocation, retrofit program and Behavioral practices.
Conservation
Conservation or water conservation helps to recharge ground water by reducing consumption and using alternative source of water. This method includes rainwater harvesting, groundwater recharge, reuse of Greywater and recycling wastewater.
- Rainwater Harvesting System: Rainwater harvesting system is collection of rainwater from the surface which directly receives rainfall. Rainwater harvesting system can be rooftop rainwater harvesting or artificial groundwater recharging. Rooftop rainwater harvesting is quite popular since it can either be stored in a tank or diverted to artificial recharge system.
- Groundwater recharge: Groundwater recharge is a hydrologic process where water moves downward from surface water to groundwater. Recharge occurs both naturally and artificially. In natural groundwater recharge, groundwater is recharged naturally by rain and snow melt and to a smaller extent by surface water such as rivers and lakes. Artificial groundwater recharge is a successful method in order to purify surface water and to improve the water management. Artificial groundwater recharge is the infiltration of surface water into shallow aquifers to increase the quantity of groundwater. The volume-rate abstracted from an aquifer in the long term should be less than or equal to the volume-rate that is recharged.
- Greywater System: Greywater is wastewater from non-toilet plumbing systems such as hand basins, washing machines, showers and baths. Most Greywater is easier to treat and recycle than blackwater, because of lower levels of contaminants. The method and standard of treatment in a Greywater system will vary with the size of the system. Pipes and supply points on the Greywater system must be clearly labeled in order to avoid confusion with the mains drinking water. Greywater systems can help you save 35% to 40% on your annual water bill.
- Recycling wastewater/ STP system: Recycling wastewater involves Greywater system and blackwater system. Greywater is easier to treat and recycle than blackwater. Blackwater contains bacteria that can cause disease. That’s why communities build wastewater treatment plants and enforce laws against the release of raw sewage into the environment. Sewage Treatment plant system are used to recycle blackwater. In recent years, there has been growing interest in waste-water reuse as a major component of water demand management.
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5 comments:
YES SIR YEsssssssss
I shall make sure from now to keep this points in mind ..
Bikram's
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