Water Pollution Research Paper

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INTRODUCTION Water is one of the most important part of which man has been exploited than any other resource for the sustenance of life. The evaporation and precipitation continuously purify the water; pollution of water has been generated as one of the most significant environmental problems in recent years. The unique properties water i.e. physical, chemical & biological which make it is universal solvent and a renewable resource, also make it a substance with greater tendency to get polluted. Water can be regarded as polluted when it is changes its quality i.e properties or its composition either naturally or manmade activities, becoming less suitable for domestic i.e. drinking purpose as well as agricultural, industrial, recreational and…show more content…
With the current scenario on environmental health and water pollution issues, there is an increasing awareness of the need to dispose of these wastewaters safely. In the absence of suitable technology and facilities for treatment, they are inevitably discharged into fresh and & waters. According to Trivedy (1998), about 7006.74 MLD of wastewater is generated per day in class I cities in India, out of only 59% percentage is collected and give the treatment option for that while in class 11 cities about 1226.32 MLD of wastewater is generated per day and only 15.54% of which is collected and 5.44%…show more content…
With the passage of time sewage becomes stale, dark in colour with a strong smell due to microbial activity. The solids are is to be suspended as well as dissolved. Dissolved solids are analysed to be precipitated by chemical and biological process. The Suspended solids can lead to the generate the sludge deposits and anaerobic conditions when discharged into the receiving waters. Temperature of sewage is useful in indicating the solubility of oxygen, which affects the rate of biological activity. Very low temperature adversely affects the efficiency of sedimentation. Usually sewage has higher temperature than that of the water supply. The hydrogen ion concentration of sewage is a valuable parameter in the operation of biological units. The pH of fresh domestic sewage is quietly more than the water supply to the community. Chemically analysis wastewater content is usually characterised are composed of organic and inorganic compounds, as well as various gases. Organic components consist of carbohydrates, proteins, fats and greases, surfactants, oils, pesticides and phenols. Inorganic components consist of heavy metals, nitrogen, phosphorous, sulphur, chlorides, alkalinity and toxic compounds. In domestic wastewater, the organic and inorganic portion is approximately 50 % in waste water respectively. Gases commonly dissolved

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