Siyang County is under the administration of Suqian, Jiangsu province, China. It borders the prefecture-level city of Huai’an to the southeast. Area is about 547 mi², with population of 831,112 (2010).
The effluent of wastewater treatment plant meets China National Class 1-A Discharge Requirement, with COD < 50 mg/L and NH3-N < 1 mg/L at all time.
Client Siyang County, Jiangsu, China
Completion Date 2007
Treatment Capacity 50,000 m³/d (13,200,000 GPD)
Process Flow Two Phase Grids + Grit Chamber + BDP Basin +UV Disinfection
Key Words Municipal Wastewater, Sewage
Parameters and Facts
- CODCr 60~340 mg / L
- BOD5 30~120 mg / L
- TSS about 180 mg / L
- TN 30~50 mg / L
- NH3-N 25~35 mg / L
- TP 3~5 mg / L
- CODCr about 45 mg / L
- BOD5 6~8 mg / L
- TSS about 10 mg / L
- TN 10~15 mg / L
- NH3-N about 1 mg / L
- TP about 0.5 mg / L
- Blueprint Area (m2/m3 ) 0.4~0.5
- Operating Cost 0.12~0.17 CHY/Ton
- Dissolved Oxygen 0.3 mg/L
- Gas-Water Ratio 3~4
- Sludge Concentration 6 – 8 g/L
- Effective Depth of Water 5.5~6 m
- Temperature 7 °C
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