Investigation of Outbreaking Sulfide Pollution in Drinking Water

Objectives To investigate the reason of the sulfide contamination in the drinking water of a corporate, so as to provide a scientific basis for government control and prevention.

Methods Combine the on-site hygienic investigation and laboratory testing method to find the pollution reason.

Results The mean sulfide concentration in source water was 8.25 mg/L, and the peripheral water was 7.78 mg/L, which is 389 times higher than the standard limits for sulfide (0.02 mg/L).

Conclusions The main causes of sulfide pollution in water sources are as below:① illegal construction of pollution enterprises in the source water areas; ② destruction the vegetation in the source water areas, and ③ direct discharge of waste water, waste slag, waste gas without pre-treatment. In order to ensure the safety of drinking water, it is important to pay more attention to protect the source water areas.