Waste Water Treatment System (CL-1000)

Section 1 Waste water Quantity

1.1 Wastewater Quantity: ≤15m3/h

The type and quantity of the wastewater is as follows: Cleaning overflow wastewater≤15m3/h

1.2 Reference Indices for Wastewater Quality:

pH8-12 CODcr≤2000mg/l SS400mg/l BOD ≤400600mg/l.

Cleaning overflow wastewater: pH: 8-12 CODcr≤2000mg/l SS400mg/l BOD ≤400600mg/l

Section 2 Treatment Objectives

2.1 Wastewater Treatment Objectives

After the wastewater treatment, under normal operation, the effluent quality should meet the Class I discharge standards required by the Wastewater Comprehensive Discharge Standard GB8978-1996, that is:

pH: 6-9

CODcr: ≤100mg/l

SS: ≤70mg/l

Oil: ≤5mg/l

2.2 Sludge Treatment Objectives

2.2.1. The sludge generated from the wastewater treatment process is dewatered with the plate-and-frame filter press.

2.2.2 The sludge water content after dewatering is no more than ≤75%.

2.2.3 The dewatered sludge is centralized before being transported outside for disposal as solid waste to prevent secondary pollution.