ANALYSIS& DESIGN OF RIVER WATER SAND FILTERS BY USING COCONUT SHELL & COAL

Civil Engineering

A study was carried out to determine about slow sand filter which are very commonly used in conventional water treatment plants. The slow sand filter beds are suffering by the problems like mud ball formation and unsatisfactory effluent. Dual media and multimedia filters can overcome the limitations of slow sand filter. Capping of crushed coconut shell and coal is used as a dual media. Designing dual media filter capped with crushed coconut shell proves to be more efficient, economical and durable. Two models having same dimensions of 70 cm height & Third model with 77 cm height was designed. All 3 models had 27cm diameter and capacity of 40 litre are practiced. The water sample was collected from nearby river. The tests which are conducted on sample are pH, Temperature, Total Dissolved Solids, Alkalinity, Hardness and Turbidity. The efficiency is determined on the basis of test results followed by conducting various experiments on sample

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