Rain Water Harvesting
Save Water, Save Earth
About Rain Water Harvesting (RWH)
Why should we switch to Rainwater Harvesting?
Rain water harvesting is collection and storage of rain water that runs off from roof tops, parks, roads, open grounds, etc. This water run off can be either stored or recharged into the ground water.
India faces a turbulent water future. Unless current inefficient water management practices are changed, India will face a severe water crisis in coming decades. It will not have adequate self funding to build new infrastructure nor will the sufficient water be available for its growing Economy and rising population (As per World Bank Report 2006). Rain water harwesting is an effective method of dealing with the water crisis that inevitably occurring in several countries of the world. As the world population is increasing, there has been an exponential rise in the demand for water.
Scope of the work
- Identification of hydrogeologically potential zone for few water extraction structure like bore wells and dug wells.
- Design of Artificial Recharge Structure like Percolation ponds, Recharge Wells, percolation Pits, etc.
- Detailed Geophysical study in the form of Vertical Electrical Soundings to study the variation in the subsurface formation and to delineate favourable zones for Artificial Recharge Structures.
- Introduction of Roof water harvesting systems for individual and multi storied buildings.
- Identifying areas for Check dams, barriers, gully plugs percolation pond &Subsurface Dykes.
Advantage
- Raises ground water levels. Improves availability of water in wells/tubewells during lean period.
- Improves quality of existing ground water through dilution.
- Saves energy in lifting of ground water one meter rise in water level saves about 0.40 KWH of electricity.
- Identification of hydrogeologically potential zone for few water extraction structure like bore wells and dug wells.
- Design of Artificial Recharge Structure like Percolation ponds, Recharge Wells, percolation Pits, etc.
- Detailed Geophysical study in the form of Vertical Electrical Soundings to study the variation in the subsurface formation and to delineate favourable zones for Artificial Recharge Structures.
- Introduction of Roof water harvesting systems for individual and multi storied buildings.
- Identifying areas for Check dams, barriers, gully plugs percolation pond &Subsurface Dykes.
Advantage
- Raises ground water levels. Improves availability of water in wells/tubewells during lean period.
- Improves quality of existing ground water through dilution.
- Saves energy in lifting of ground water one meter rise in water level saves about 0.40 KWH of electricity.
In this monsoon we have saved approx. 100 million liter water from 1000 rain water harvest structure in Chhattisgarh, Orissa and Madhya Pradesh.
Types of RWH
Recharge Pit
Recharge Trench
Recharge Well
Recharge Shaft / Percolation Pits
Recharge Through Existing Tubewells/ Handpump
Rainy Filter
Types of RWH
RECHARGE PIT
Recharge pit
Recharge pits are smalls pits that are constructed using bricks or masonry walls. The pits can be made of any shape circle, rectangle or square. It is mostly implemented in small houses or buildings. The top of pit can be covered and the bottom is filled with filter medium. The capacity of the pit is designed depending on the catchment area, density of the soil and the usual intensity of rainfall in the area.
RECHARGE TRENCH
Recharge Trench
The recharge trenches are made where the upper layer of the soil does not allow fluids to pass into. The recharge trenches are dig in the ground and is refilled with stones, small rocks or bricks. It is usually implemented in the surface runoff areas to enhance percolation. It is suitable in parks, playgrounds and roadside drains.
RECHARGE PIT
Recharge pit
Recharge pits are smalls pits that are constructed using bricks or masonry walls. The pits can be made of any shape circle, rectangle or square. It is mostly implemented in small houses or buildings. The top of pit can be covered and the bottom is filled with filter medium. The capacity of the pit is designed depending on the catchment area, density of the soil and the usual intensity of rainfall in the area.
RECHARGE TRENCH
Recharge Trench
The recharge trenches are made where the upper layer of the soil does not allow fluids to pass into. The recharge trenches are dig in the ground and is refilled with stones, small rocks or bricks. It is usually implemented in the surface runoff areas to enhance percolation. It is suitable in parks, playgrounds and roadside drains.
BOREWELL
Borewell
The collected water from the rooftop is send directly to the filtration system. After filtration the water is diverted to borewells to get recharged. Abandoned borewells are also used as recharging aquifers. The first flow of rain should be flushed out to avoid contamination and to restrict clogs.
DUG WELL
Dugwell
Dug wells can also be used as recharging system. The collected water from the catchment pipes are directly send to the dug wells after filtration process. The filtration can be suggested as done in the bore well recharging system. The dug wells should be maintained by cleaning and desalting in regular intervals to maintain the recharged water quality.
RECHARGE SHAFT / PERCOLATION PITS
Recharge shaft/ percolation pits
Percolation pits are artificial pits that are constructed on land that is highly permeable. It is constructed by earthen materials that allows the water to pass through it. The water then collected is percolated in the ground. It allows to enhance the groundwater quality. Both surface runoff and roof top water can be diverted into percolation tanks. It can be implemented in gardens, open spaces and roadside of urban areas. The collected water can be used for gardening purposes, and other raw uses.
RAINY FILTER
Rainy Filter
'Rainy' Dual Intensity filters work at high efficiency regardless of the intensity of rainfall and have self-cleaning abilities. At nominal prices, our filters are market leaders in Rooftop Rain Water Harvesting.
Designing of Rainwater Harvesting System
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Feasibility Study OF Rain Water Harvesting
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Water Conservation & Water Neutrality
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