Safety technology for purifying cyanide-containing sewage by bleaching powder method and liquid chlorine method

1. The staff must be specially trained, and those who pass the examination should strictly follow the relevant safety technical regulations.
2. Staff members must wear overalls, rubber shoes, rubber aprons, personal protective equipment such as glasses, masks, gas masks, etc. For those with skin injuries, it is strictly forbidden to contact bleaching powder. Emergency medicine should be kept indoors.
3. The purification section should be isolated from other buildings. The indoor ventilation system should be used, and the air exchange capacity should be no less than 15%. The harmful gas should be removed in time through the local ventilation system. The ventilation pipeline should be made of stainless steel to prevent corrosion.
4. It is strictly forbidden to scrub the indoor floor, walls and equipment with acid and substances with strong odor.
5. The chlorination chamber and the purification section should be regularly inspected for safety, and the hidden dangers should be rectified at any time. If the liquid chlorine tank is damaged, it is strictly forbidden to use. The tank should be immersed in the collecting tank and disinfected with sodium disulfite.

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