Browsing by Author "Piyush, Bazimaya"

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    A Case Study of Qualitative and Quantitative Analysis of Bellandur Lake Water
    (2016-06-22T13:33:35Z) Aditya, Barrela; Piyush, Bazimaya; Subhash, Adhikari; Ngehang, Nogbi
    Most lake pollution problems are caused by nutrients, contaminants, and sediments carried into the lakes. Soil particles carry more than 90 percent of the organic nitrogen and phosphorus originating from upland agricultural practices (Wilkin and Hebel, 1982). Sediments come from all over the land and thus have nonpoint sources, whereas nutrients can have both nonpoint and point sources. In a typical watershed, nutrients may come from sewage, wastewater, agricultural and urban runoff, and atmospheric fallout. In recent years, heavy use of fertilizers and pesticides and high rates of soil erosion have increased the severity of the problem. High concentrations of nitrogen and phosphorus are the main causes of algal growth, which results in the deterioration of the lake water quality. Algae have a very high growth potential, many times more than any land-based plant system, and respond quickly to nutrient inputs which act as fertilizers. Water pollution has been a major issue as water forms an important component of our day-to-day activity. Excess nutrients either from sewage discharge, industrial discharge or agricultural runoff add to the imbalance in the dynamics of water quality. Bellandur Lake occupies 4.8% of city area and maximum sewage entering the lake is 600 MLD.