Urban population in India has grown almost five times in five decades from 1951 (62.44 million) to 2001 (286.08). Not long ago, most of our cities were self sufficient in meeting their water needs from the extensive urban water bodies to supply water to citizens. Today these water bodies have completelydisappeared. Municipalities have been stretched totheir limits to find water for the growing urban populations. Rapid Urbanisation has led to excessive surface runoff and reduced seepage of water into the ground. This has led to a depletion of the water table. Traditional Open wells are experiencing lower than ever water levels and groundwater contamination is on the rise.
Limited/Restricted Water Supply
Shrinking Water Table
Ground Water Contamination
Roof top Rain Water Harvesting
Roof Top Rainwater is the purest form with its Impurities being limited to the dust and debris found on the roof surface. As such an Online Filter suffices to clear the water of these impurities.
Surface Run Off Rain Water Harvesting
Surface runoff rainwater Is loaded with silt, debris and dirt from the area. As such a Silting chamber is a must to clear the heavy suspended particles and silt. The resultant clearwater however has to undergo further filteration to make it fit for use.
Rainy Filter by Farmland Rainwater Harvesting Systems
POPup Filter by KSCST
The function of these filters is to filter the debris, leaves and other particles from the roof water. This filter alongwith a First Flush mechanism ensures that the Roof water is suitable for the secondary purpose or recharge
The basic concept of this system is that the rainwater which would otherwise go waste as runoff in drains is led into a injection well structure that would inject the water through gravity into deeper layers of the earths crust. This water will then recharge the underground aquifers and thus result in an increased yield of the underground water sources
The traditional methods of digging shallow pits and letting water percolate through them are fine for general recharge of ground water. However to get targeted and more precise results, Injection well technology is the best alternative.
With an Initial Ground water Geological survey, the success rate of this method is enhanced. This Survey is crucial to understand the sub-strata and the nature of fissures and aquifers affecting the water source.
Understanding the problems in the place under consideration. Area Specific problems such as Ground water contamination, High Fluoride content, High TDS, Ingress of Saline Water. etc will be analysed.
Rainfall pattern, Topography, Existing Flow pattern of surface water, Soil Conditions, Current Water usage Pattern and Projected water requirement, Water analysis, etc
This is very important. The Survey will determine which system will be most effective in that area. Also the exact location for digging the recharge injection wells can be determined by this Survey. A hydrological Survey will give a complete picture as to the nature of the underlying geological features and the water in the earths crust.
Finalisation and Planning of the Collection Systems to be used - Roof top and Surface Runoff. Planning the Storage System and the Recharge Points as per the requirement. Planning the Harvested water Re-use system and the additional Filtration processes thus required.
Construction of Roof channels, Surface Drains, Silt trap, Storage Tanks, Injection well and all necessary structures.
Since the system runs on a very basic concept of collection, storage and recharge with the most basic of technology used, there is little that can go wrong. However we shall train the users as to the ideal practices for efficient running of the System
V wire screen by Apollo
V wire screen by Farmland Rainwater Haversting System
Filters used for Recharge This filter come equipped with a unique V-shape wire mesh. The salient feature of this mesh is that it doesnot allow any particle to get embedded within the screen thus preventing clogging. This feature alongwith the increased surface area due to its V-shape allows for a maintenance free usage of the filter.