Rainwater harvesting (RWH) refers to collection of rain falling on earth surfaces for beneficial uses before it drains away as run-off. The concept of RWH has a long history. Evidence indicates domestic RWH having been used in the Middle East for about 3000 years and in other parts of Asia for at least 2000 years. Collection and storage of rainwater in earthen tanks for domestic and agricultural uses is very common in India since historical times. The traditional knowledge and practice of RWH has largely been abandoned in many parts of India after the implementation of dams and irrigation projects.
Rainwater harvesting can be done at individual household level and at community level in both urban as well as rural areas. At household level, harvesting can be done through roof catchments, and at community level through ground catchments.
Depending on the quantity, location and intended use, harvested rainwater, it can be utilized immediately or after storage. Other than as a water supply, RWH can be practiced with the objectives of flood control and soil erosion control.
Components of RWH Systems:
RWH system has three components –
a) the catchment,
b) the collection system and
c) the utilisation system.
Rainwater harvesting has been adopted by many countries as a viable means to save water. With the increasing population and dependence on water, it becomes pertinent for institutions and even households to start investing in rain-water harvesting systems (RWH). GuruJal has been taking proactive step towards installing Rainwater Harvesting Systems. Few models adopted by GuruJal are as below.
Total Cost approximately = 2.05 lakhs
Total Cost approximately = 3.80 lakhs
Total Cost approximately = 4.60 lakhs
Total Cost approximately = 1.05 lakhs
Total Cost approximately = 3.35 lakhs
Total Cost approximately = 3.70 lakhs
AREA REQUIRED : 100 sq. feet(10*10, L*B)
CAPACITY OF RECHARGE : 200 Sq. m Area at water logged of depth 2-3 feet.
TOTAL COSTING WITH BREAKUP : Rs. 17000 including earth work, Labor, Material etc.
MAN DAYS REQUIRED FOR CONSTRUCTION : 3 Days
AREA REQUIRED : 120 sq. m(10*12, L*B)
CAPACITY OF RECHARGE : Area more than 2000 Sq. M. Example: Govt. buildings, Schools, Corporates etc.