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WATER POLLUTION AND MANAGEMENT

UNIT I
:

Sources of water - hydrological cycle - physico-chemical properties of water, softening of water - water quality standard for potability - Pollution parameters, BOD, COD, Coliform bacteria - Water borne diseases. Effects of water pollution on aquatic system. Health effects of water pollution.

UNIT II:
Treatment of water for potable purpose (mixing, sedimentation, coagulation, filtration and disinfection) - Water pollution - Domestic, industrial and agricultural waters. Primary and secondary treatment. Sludge disposal. Biological treatment: Kinetics of Biological growth - activated sludge treatment - trickling filters - anaerobic digestion, combined aerobic and anaerobic treatment process, aerobic process.

UNIT III:
Advanced waste water treatment - removal of dissolved organics and inorganic - precipitation, iron exchange, reverse osmosis, electro dialysis, adsorption and oxidation. Removal of nutrients. Removal of heavy metals - overall waste water treatment for sewage water. Water pollution treatment using constructed wetlands

UNIT IV:
Watershed management. Concept and frame work - water harvesting and recycling, water planning and management - case studies in Tamilnadu.

UNIT V:
Water Prevention and Control of Pollution Act 1974 as amended up to 1988 and Rules 1975.Water Cess Act 1977 and Rule 1978.

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