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Page Name: Rainwater harvesting


Posted by: project ideas
Created at: Wednesday 30th of May 2012 06:30:17 AM
Last Edited Or Replied at :Wednesday 30th of May 2012 06:30:17 AM
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minated due to pollutants like microscopic germs etc., it is often not considered suitable for drinking without treatment. However, there are many examples of rainwater being used for all purposes — including drinking — following suitable treatment.
Rainwater harvested from roofs can contain human, animal and bird faeces, mosses and lichens, windblown dust, particulates from urban pollution, pesticides, and inorganic ions from the sea (Ca, Mg, Na, K, Cl, SO4), and dissolved gases (CO2, NOx, SOx). High levels of pesticide have been found in rainwater in Europe with the highest concentratio..................==> [ Click Here to Read More ]



Page Name: Rainwater harvesting from rooftop catchments


Posted by: project maker
Created at: Tuesday 21st of February 2012 04:55:48 AM
Last Edited Or Replied at :Tuesday 21st of February 2012 04:55:48 AM
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t include:
- A device to indicate the amount of water in the tank
- A sediment trap, tipping bucket, or other foul flush mechanism
- A lock on the tap
- A second sub-surface tank to provide water for livestock, etc.
• The following questions need to be considered in areas where a rainwater cistern system projects is being considered, to establish whether or not rainwater catchment warrants further investigation:
- Is there a real need for an improved water supply?
- Are present water supplies either distant or contaminated, or both?
- Do suitable roofs and/or other catchment su..................==> [ Click Here to Read More ]



Page Name: Safe Water Technologies


Posted by: project report expert
Created at: Monday 27th of June 2011 04:44:18 AM
Last Edited Or Replied at :Monday 27th of June 2011 04:44:18 AM
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nd stored, rainwater can keep a fairly constant water quality for months. In areas with low population density and hard rocks surfaces (rock outcrops or cement), rainwater can be collected from the ground surface by constructing micro dams to channel surface runoff into underground storage tanks. In more densely populated areas, rooftop collection is more common. Corrugated iron roofs are ideally suited for this purpose, though terra cotta or wood tiles, or concrete roofs are also acceptable. Thatched roofs are not appropriate for rainwater collection, as the collected water is high in organic..................==> [ Click Here to Read More ]



Page Name: RAIN WATER HARVESTING


Posted by: project report expert
Created at: Saturday 18th of June 2011 04:26:09 AM
Last Edited Or Replied at :Tuesday 19th of June 2012 04:24:11 AM
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INTRODUCTION
Rainwater harvesting is the accumulating and storing, of rainwater for reuse, before it reaches the aquifer. It has been used to provide drinking water, water for livestock, water for irrigation, as well as other typical uses given to water. Rainwater collected from the roofs of houses, tents and local institutions, can make an important contribution to the availability of drinking water. Water collected from the ground, sometimes from areas which are especially prepared for this purpose, is called Stormwater harvesting. In some cases, rainwater may be the only av..................==> [ Click Here to Read More ]



Page Name: RAINWATER HARVESTING ARTIFICIAL DISCHARGE TO GROUND WATER


Posted by: academic expert
Created at: Monday 18th of April 2011 01:51:20 AM
Last Edited Or Replied at :Thursday 26th of July 2012 11:58:59 PM
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two are usually permanent or semi-permanent; and the sandbag check dam is usually for temporary purposes. Also, there are check dams that are constructed with rock fill or wooden boards. These dams are usually used only in small, open channels that drain 10 acres (0.040 km2) or less; and usually do not exceed 2 feet (0.61 m) high.
2.2 Subsurface dams
Subsurface Dams are groundwater dams, which are structures that intercept or obstruct the natural flow of groundwater and provide storage for water underground.
They have been used in several parts of the world, notably India, Africa ..................==> [ Click Here to Read More ]



Page Name: RAINWATER HARVESTING full report and ppt


Posted by: seminar topics maker
Created at: Sunday 06th of February 2011 10:53:13 PM
Last Edited Or Replied at :Friday 14th of September 2012 06:41:50 AM
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area to the storage system by connecting roof drains (drain pipes) and piping from the roof top to one or more downspouts that transport the rainwater
through a filter system to the storage tanks. Materials suitable for the pipework include polyethylene (PE), polypropylene (PP) or stainless steel.
Before water is stored in a storage tank or cistern, and prior to use, it should be filtered to remove particles and debris. The choice of the filtering system depends on the construction conditions. Low-maintenance filters with a good filter output and high water flow should be preferred. “Fi..................==> [ Click Here to Read More ]



Page Name: Rain water harvesting in surrounding areas


Posted by: sharathsingh
Created at: Friday 17th of September 2010 04:46:22 PM
Last Edited Or Replied at :Saturday 18th of September 2010 12:12:46 AM
areas , surrounding, harvesting , water, Rain ,
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Dear sir,...

I am sharath and I am a student, I want more information about rain water harvesting, as I have decided to prepare academic projects report on this topic, so please help me?

Please do the above needful,..

Thank you,.....................==> [ Click Here to Read More ]



Page Name: RAINWATER HARVESTING AND ARTIFICIAL RECHARGE TO GROUND WATER full report


Posted by: best project report maker
Created at: Sunday 07th of February 2010 07:25:01 PM
Last Edited Or Replied at :Friday 23rd of November 2012 05:38:24 AM
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IS NOT A DEPENDABLE WATER SOURCES IN TIMES OF DRY WEATHER OR PRONGED

DRAUGHT


CONCLUSION

IN DENSELY POPULATED COUNTRIES LIKE INDIA, THE DEMAND FOR WATER GOES ON INCREASING

WITH INCREASE IN POPULATION. THIS PROVES TO BE MAJOUR PROBLEM IN OUR EXPLORING NEW

SOURCE OF WATER , RAINWATER NATURALLY AND FREELY AVAILABLE SOURCE CAN BE PROPERLY

UTILIZED BY MEANS OF WATER HARVESTING AND RECHARGING
RAINWATER HARVESTING IS A VIABLE TECHNOLOGY FOR ENCHANCING PRODUCTION FROM THE

RAINFED LANDS
GROUNDWATER RECHARGING BY ARTIFICIAL METHODS SHOULD BE TAKEN UP PRIO..................==> [ Click Here to Read More ]



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