Discharge standard of pollutants

1, waste water

The discharge of wastewater shall comply with CJ3082-1999 water quality standard for sewage discharged into urban sewer and the requirements for access to the network of Yandong sewage treatment plant. The main indicators are: pH 6-9, SS ≤ 350mg / L, BOD5 ≤ 200mg / L, CODcr ≤ 400mg / L, petroleum ≤ 20mg / L, phosphate (P) ≤ 1mg / L, NH3-N ≤ 25mg / L.

2. Exhaust gas

The emission standard of production waste gas pollutants shall be in accordance with the secondary standard of "emission limit of air pollutants from new pollution sources" (GB8978-1996). See the following table for specific emission standard values:

Class III standard of GB12348-90 standard for noise at boundary of industrial enterprises shall be implemented, i.e. 65dB in daytime and 55dB at night.