摘要
渤西终端含油污水处理系统由隔油、浮选和过滤等装置组成,经其过滤达标排放的出水含油量一般均在10 mg·L^(-1)以下,但其他污染物,如COD、挥发酚等含量未达到国家排放标准。为解决这一问题,中海石油(中国)有限公司天津分公司与北京金源环境保护设备有限公司和中国科学院成都生物研究所合作,在渤西终端对含油污水进行了生物处理试验,取得了重大突破,生物处理方法在渤西终端污水处理试验获得成功。这为此项技术在石油、石化行业中的推广奠定了基础。对1999年初至2001年1月进行的渤西终端含油污水去除COD项目,包括室内试验、现场中间试验、专题研究、初步设计、装置试运行及投产等进行了论述。
The sewage water treatment system at Boxi terminal is composed of separation, floatation and filtration. The oil content after filtration is generally less than mg·-1. However, the other pollutants such as COD, and volatile hydroxybenzene, etc. are not met with the national standards. Therefore, in cooperation with Chengdu Biological Research Institute, a biological treatment test for the sewage water at Boxi terminal was run by CNOOC Ltd. Tianjin Company and Beijing Jinyuan Company, and a major technical breakthrough has been made. The experimental test of biological method was successfully used in sewage water treatment at Boxi terminal, which set up a basis for a wide use of this method in petroleum and petrochemical sectors.
This paper gives an overview of COD removal project at Boxi terminal including laboratory test, pilot test, special research, preliminary design, commissioning and start-up from early 1999 to January 2001.
