Wastewater
Project Ⅰ
Project Background:
A technology company in Kunshan works on research, manufacture and sale of polarizing sheet, optical functional film, and optical compensation film for LCD.
In 2016, SCHW undertook the company’s wastewater treatment
project (1070m3/day), provided equipment such as power equipment, DAF,
MBR, sludge thickener and filter press. Besides, SCHW also provided services
such as engineering design, installation and commission.
The construction of this project started in October 2016, completed in
December 2016.
Wastewater Influent and Effluent water quality：
| Parameters | Influent Quality | Effluent Quality |
| Chemical Oxygen Demand（mg/L） | 960 | 300 |
| Biochemical Oxygen Demand (mg/L) | 310 | 200 |
| Suspended Solids (mg/L) | 500 | 200 |
| pH | 4-10 | 6-9 |
Processes：
Project Ⅱ
Project Background:
A company in Taicang works on aluminum ingot casting, mold design and manufacture, aluminum extrusion, CNC milling lathe, and surface anodic oxidation etc…
In 2017, SCHW undertook the company’s wastewater treatment project (sewage wastewater 60m³/day, industrial wastewater 60m³/day), provided equipment such as power equipment, coagulation and flocculation equipment, high efficiency sedimentation tank, MBR module, activated carbon filter, UF skid, RO skid, sludge thickener and filter press. Besides, SCHW also provided services such as engineering design, installation and commission.
The construction of this project started in October 2017, completed in January 2018.
Wastewater Influent and Effluent water quality：
| Parameters | Influent Quality | Effluent Quality |
| Chemical Oxygen Demand（mg/L） | ≤400 | ≤50 |
| Ammonia Nitrogen（mg/L） | ≤42 | ≤8 |
| TP（mg/L） | ≤250 | ≤0.5 |
| SS（mg/L） | ≤220 | ≤15 |
| PH | 2-10 | 6-9 |
Processes：
