Acrylonitrile Wastewater Treatment Plant

A successful application on Acrylonitrile wastewater treatment.

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Project Description

PetroChina Company Limited (“PetroChina”) is the largest oil and gas producer and distributor, playing a dominant role in the oil and gas industry in China. It is not only one of the companies with the biggest sales revenue in China, but also one of the largest oil companies in the world. China National Petroleum Corporation (CNPC) is the sole sponsor and controlling shareholder of PetroChina.

CNPC’s acrylonitrile manufacturing plant in Jilin requires to achieve 100% reuse of its wastewater as a supplementary source to the production plant by using BDP Technology to treat this acrylonitrile produced wastewater.

Project Details

Client China National Petroleum Corporation (CNPC)
Completion Date 2006
Treatment Capacity 4,800 m³/d (1,268,000 GPD)
Process Flow BDP® Basin
Key Words Cyanide, 2-Ethyl hexanol, formaldehyde, organic acid, petroleum and sulfide, CODCr, NH3-N, High CN-

Parameters and Facts

  • CODCr 800~1,500 mg / L
  • BOD5 350~550 mg / L
  • NH3-N 70~80 mg / L
  • pH 6~9
  • CN- 5 mg / L
  • CODCr <100 mg / L
  • BOD5 <10 mg / L
  • NH3-N <1 mg / L
  • pH 6~9
  • CN- <0.1 mg / L
  • COD Loading 1.0 kg COD/m³d
  • Sludge Concentration 8 g/L
  • Dissolved Oxygen 0.3 mg/L
  • Operating Cost 0.19~0.23 $/Ton
  • Maintenance Self-cleaning aeration system with non-stop fully automatic operation



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