In recent years due to the impact of urbanization, and the socio-economic development, Lake are faced with the problem of pollution, water quality of the Lake on a decline: the pH is always at a high level, nutrient concentrations in water (NH4, TN, TP, COD) always in surplus levels, leading to the eutrophication. In addition, waste water, waste, sludge, sand ... accumulate many years of increasingly thick mud layer, both back the circulation with groundwater. The nature of the cause of pollution is due to the Lake's ecosystem was ruined almost over the Lake leads to loss of the ability to self clean, the water is polluted.
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