生物接触氧化法处理油田含聚污水室内模拟实验

在对胜利油田含聚污水水质分析和可生化性分析的基础上,在对含聚污水进行可生化性调整和生物膜的培养与训化后,运用生物接触氧化法进行了含聚污水处理现场模拟试验.监测了污水接种PM-1菌后聚丙烯酰胺的含量变化以及生化处理后污水中的油含量、悬浮物含量、CODCr、BOD5、平均腐蚀率和微生物种群随时间的变化.结果表明:经生化处理后的含聚污水基本达到回注水A级标准.由于污水中聚合物还不能被彻底降解,矿化度仍比较高,还要有相应的后处理.

Laboratory simulation study on the treatment of oilfield polymer-contained wastewater by biological contact oxidation process

The biodegradability of the polymer-contained wastewater is improved based on the analyses of the quality and the biodegradability of the polymer-contained wastewater.After the culture and training of biomembrane,the laboratory biological contact oxidation simulation experiment of the wastewater is carried.The variation of the polyacrylamide content in it is monitored in the process of the biological contact oxidation,and the variations of crude oil content,suspended solid content,CODCr,BOD5,mean corrosion rate and microbial population with time in the wastewater treated by d the biological contact oxidation are also measured.It is shown that the treated wastewater can reach to A-grade satandard of oilfield reinjection water.However,the polyacrylamide in the treated wastewater couldn't completely be degraded,its salinity is still in higher level,and it also needs to be treated by other methods to meet different requirements.