INDUSTRIAL WATER TREATMENT ›› 2014, Vol. 34 ›› Issue (4): 55-59. doi: 10.11894/1005-829x.2014.34(4).055

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Advanced removal of carbon and nitrogen from Sohio acrylonitrile wastewater

He Xiaojuan   

  1. Shanghai Engineering Co., Ltd., SINOPEC, Shanghai 200120, China
  • Received:2014-02-27 Online:2014-04-20 Published:2014-04-25

Sohio法丙烯腈污水深度脱氮除碳的方法

何小娟   

  1. 中石化上海工程有限公司, 上海 200120
  • 作者简介:何小娟(1964-),硕士,高工。电话:021-58366600-3258,E-mail:hexiaojuan.ssec@sinopec.com。

Abstract:

The composition,characteristics and current status of Sohio acrylonitrile wastewater in China have been analyzed in detail. Based on process comparisons,the processing flow of bio-doubling and anaerobic combined process+biological aerated filter+ozone catalytic oxidation+biological aerated filter is put forward. The experimental results show that when the COD,BOD5,TN and 3-pyridinecarbonitrile of diluted acrylonitrile wastewater are 1 600,800,250 and 400 mg/L,respectively,the treated effluent is COD≤40 mg/L,BOD5≤5 mg/L,TN≤30 mg/L,NH3-N≤5 mg/L,and 3-pyridinecarbonitrile≤1 mg/L.

Key words: acrylonitrile wastewater, bio-doubling process, biological aerated filter, ozone catalytic oxidation, advanced carbon and nitrogen removal

摘要:

详细分析了Sohio法丙烯腈污水的组成、特点和国内处理现状,在工艺对比的基础上,提出了生物倍增和缺氧组合工艺+曝气生物滤池+臭氧催化氧化+曝气生物滤池的处理流程。试验结果表明,稀释后的丙烯腈污水COD、BOD5、TN、3-氰基吡啶分别为1 600、800、250、400 mg/L时,采用该流程处理后出水COD≤40 mg/L,BOD5≤5 mg/L,TN≤30 mg/L,NH3-N≤5 mg/L,3-氰基吡啶≤1 mg/L。

关键词: 丙烯腈污水, 生物倍增, 曝气生物滤池, 臭氧催化氧化, 深度脱氮除碳

CLC Number: