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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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, usually of acceptable quality for household needs and renewable at acceptable volumes, despite forecasted climate change (CSIRO, 2003). It produces beneficial externalities by reducing peak storm water runoff and processing costs. In municipalities with combined sewer systems, reducing storm runoff is especially important, because excess runoff during heavy storms leads to the discharge of raw sewage from outfalls when treatment plant capacity cannot handle the combined flow. Rainwater harvesting systems are simple to install and operate. Running costs are negligible, and they provide water ..................==> [ 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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Rainwater harvesting from rooftop catchments



The application of an appropriate rainwater harvesting technology can make possible the utilization of rainwater as a valuable and, in many cases, necessary water resource. Rainwater harvesting has been practiced for more than 4, 000 years, and, in most developing countries, is becoming essential owing to the temporal and spatial variability of rainfall. Rainwater harvesting is necessary in areas having significant rainfall but lacking any kind of conventional, centralized governm..................==> [ 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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ys effective, important to include multiple barriers to contamination. The most effective treatment appropriate at the rural, community level, is slow sand filtration, followed by a safety dose of chlorine. In slow sand filtration, surface water passes through prefilters, and is then filtered through 80-100 cm of sand. A bio-layer develops near the surface of the sand, which can effectively destroy most pathogens. Operation of the slow sand filter may be improved through pretreatment with bank infiltration, sedimentation or roughing filtration. The use of roughing filters, in particular, perm..................==> [ 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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llowed to be absorbed, adding to the groundwater. In the US, rooftop rainwater is collected and stored in sump.
Advantages in urban areas
Rainwater harvesting can (a) assure an independent water supply during water restrictions, that is though somewhat dependent on end use and maintenance, (b)usually of acceptable quality for household needs and (c) renewable at acceptable volumes despite forecast climate change (CSIRO, 2003). It produces beneficial externalities by reducing peak storm water runoff and processing costs. In municipalities with combined sewer systems, reducing storm run..................==> [ 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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table and enables our dug wells and bore wells to yield in a sustained manner
• It helps in the availability of clean water by reducing the salinity and the presence of iron salts
Rainwater harvesting Techniques
• Storage of Rainwater on surface for future use
• Recharge to ground water
2. STORAGE OF RAINWATER ON SURFACE FOR FUTURE USE
The storage of rain water on surface is a traditional technique and structures used were underground tanks, ponds, check dams, weirs, etc. Rainwater flows away as surface runoff. This runoff could be caught and used for recharging aqu..................==> [ 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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first rain drains the dust, bird droppings, leaves, etc. which are found on the roof surface. To prevent these pollutants from entering the storage tank, the first rainwater containing the debris should be diverted or flushed. Automatic devices that prevent the first 20-25 litres of runoff from being collected in the storage tank are recommended.
Screens to retain larger debris such as leaves can be installed in the down-pipe or at the tank inlet. The same applies to the collection of rain runoff from a hard ground surface. In this case, simple gravel-sand filters can be installed at the en..................==> [ 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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s our dug wells

and bore wells to yield in a sustained manner
It helps in the availability of clean water by reducing the salinity and the presence

of iron salts




RHH TECHNIQUES

STORAGE OF RAINWATER ON SURFACE FOR FUTURE USE
RECHARGE TO GROUND WATER



STORAGE OF RAINWATER ON SURFACE FOR FUTURE USE

CHECK DAMS
RAINWATER HARVESTING FROM ROOFTOP CATCHMENTS
SUBSURFACE DAMS
FARM PONDS

ADVANTAGES OF RWH

PROVIDES SELF- SUFFICIENCY TO YOUR WATER SUPPLY
REDUCE THE COST FOR PUMPING GROUND WATER
REDUCE SELF EROSION I..................==> [ Click Here to Read More ]



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