Impact of water environment caused by the process of the construction of the project is mainly due to the waste water of the construction workers. The composition of the principal pollutants in domestic wastewater are: chemical scum, the chemicals hovering (SS), organic compounds (BOD/COD), nutrients (N, P) and pathogenic micro-organisms (Coliform, e. Coli). Waste water contain more organic matter easy biodegradable, contains large concentrations of the bacteria Escherichia Coli and other disease-causing bacteria can contaminate surface water sources and groundwater if not handled.
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