Benefiting from our accumulated experience of wastewater treatment for kinds of clients chemistry industry, PACT is proficient in treating chemical wastewater. Such kind of wastewater are usually treated with oil seperation, chemical and biological, membrane and evaporation processes, etc. 


PACT's Patial Reference of Water & Wastewater Treatment in Chemistry Industry


Success Sharing-Arch Chemicals

Headquartered in Norwalk, Connecticut (USA), Arch Chemicals, Inc. (NYSE: ARJ) is a global Biocides company with more than $1 billion in annual sales. Together with subsidiaries, Arch Chemicals have 3,000 employees and manufacturing and customer-support facilities in North and South America, Europe, Asia, Australia and Africa. PACT provides an EPC solution of wastewater treatment for Arch Chemicals Suzhou Plant in China.


 Arch Chemicals (Suzhou)Wastewater Characteristics and The Treatment Solution

The wastewater has high COD and BOD contents and is refractory with low BOD/COD. High efficiency physi-chemical process is used to treat the wastewater.The effluent meets discharging standard (shown in the following table) after treatment.

Effluent Discharing Standard Of Arch Chemicals (Suzhou) WWTP


Discharging Standard



Suspended solids (SS)

400 mg/L

Biological Oxygen Demand (BOD5)

300 mg/L

Total Cyanide

1.0 mg/L


1.0 mg/L

Chemical Oxygen Demand (COD)

500 mg/L

Phosphate (P)

8 mg/L

Total Copper

0.5 mg/L

Total Zinc

2.0 mg/L


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