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Discharge standard of sewage treatment in high-speed service area

The sewage treatment and discharge standards for high-speed service areas include general service areas, catering service areas and refueling service areas.

1. General service area: COD≤111mg/L, BOD5≤31mg/L, SS≤51mg/L, NH3-N≤15mg/L, and pH value is 6~9.

2. Catering service area: COD≤211mg/L, BOD5≤61mg/L, SS≤111mg/L, NH3-N≤25mg/L, and the pH value is 6~9.

3. Refueling service area: COD ≤ 1.51mg/L, BOD5≤61mg/L, SS≤51mg/L, NH3-N≤21mg/L, and the pH value is 6~9.