The growing population, urbanization, economic and industrial development are not only putting pressure on the water resources in terms of quantity, pressure is increasingly in terms of quality.Mainly Domestic sewage, industrial effluents and agriculture and mining runoff cause severe water pollution. The Major issues of STP’s in Major Indian cities are around 95% of the systems are not fully functional, Interrupted operation due to frequent power failure, Hydraulic or organic overloading, Inadequate oxygenation due to power failure and mechanical breakdown of aerators, uneven sewage distribution, difficulties in sludge handling and financial difficulties.The decision regarding the process to be adopted should be derived from a balance between technical and economical criteria, taking into account quantitative and qualitative aspects of each alternative. There are no such generalized formulas for this but in city like Pune; some criteria should be taken into account like treatment efficiency and reuse, capital cost, power consumption, land requirement, operation and maintenance cost, sludge disposal, manpower requirement and most important environmental impact.
Article Details
Unique Paper ID: 143760
Publication Volume & Issue: Volume 3, Issue 1
Page(s): 133 - 135
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