SLOW SAND WATER FILTER

SLOW SAND WATER FILTER
Detail:
Product: Unit for purification of turbid surface water.
Application: To generate potable water from surface water sources.
Feature: It is a single step treatment, which simultaneously improves the physical, chemical and bacterial quality of raw water. The filter unit consists of a large open water tank 2.5 to 3 m deep, filled with fine graded sand overlying a layer of gravel. Raw water is distributed gently over the top of the filter bed. Clean water is collected at the bottom of the filter. It is readily manageable with local resources by rural women. In case of highly turbid water, pretreatments are required.
Commercialisation: Commercialised.
Economy 200 L/hr.
Investment: Rs. 5,000.
Equipment: RCC construction & fixtures.
Raw materials: Turbid surface water e.g. village ponds, lakes, canals, springs, rivers, with turbidity less than 20 NTU.
Institute: National Environmental Engineering Research Institute.
Group Wise list/Search