Case study     ChemicalWastewater
Start Up          March2016
Capacity          10,000m3/d
Location          QidongChina

Challenge

Sembcorp Qidong Water Company is the BOT project in China, provide a complete set of sewage treatment solutions and value-added services  for oil,  chemical  and  pharmaceutical companies in the industrial park. Advanced sewage treatment technology and equipment be adopted in this project, after it be completed, Urban  water  environment  had  been  greatly improved and it also protect the local river water quality and ecological balance.

Design capacity is 10,000,m3/d ,the influent and effluent parameters of biological treatment as：

Solution
The main process of the sewage treatment plant adopts the technology which combine the biological treatment and ozone chemical oxidation, the process flow diagram shows as below:

Results
After 2 months of commissioning and operation, the effluent could promote the criterial, the sewage treatment plant entered the commercial operation successfully.