Study on the Mechanism of HPAM-Degradation in the Sewage of Oilfield
Study on the Mechanism of HPAM-Degradation in the Sewage of Oilfield
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发表时间：
2008
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通讯作者：
Bao Mu-tai
中科院分区：
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作者：
Bao Mu-tai
目前，随着聚丙烯酰胺在我国油田聚合物驱技术中的广泛应用，含聚丙烯酰胺污水的处理量不断增加。在提高采收率的过程中，聚丙烯酰胺提高了油田采出液的粘度和乳化性。它增加了油水分离的难度，使污水中的含油量大大超标。含聚丙烯酰胺污水的主要特点是粘度高、油水分离困难、可生化性差。对环境的不良影响变得越来越明显。处理该类污水的主要问题是部分水解聚丙烯酰胺（HPAM）的降解，已成为一个必须解决的重要课题。综述了HPAM降解机理的研究进展，包括化学降解和生物降解。阐述了生物降解的优点。并对hpam生物降解的典型菌株进行了综述。本文可为聚丙烯酰胺降解领域提供参考。
Nowadays,the quantity of sewage containing polyacrylamide increases followed by polyacrylamide widely used in polymer flooding technique of oilfield in our country.Polyacrylamide heightens the viscosity and the emulsibility of the oilfield produced fluid when it was applied to enhance the oil recovery.It increases the difficulty in oil-water separation and makes oil content in sewage exceed the standard greatly.The main features of sewage containing polyacrylamide are high viscosity,great difficulty in oil-water separation and bad biodegradability.And the bad effect on the environment becomes more and more obviously.The main problem to treat this kind of sewage is the degradation of partly hydrolyzed polyacrylamide(HPAM),which has become an important subject to be resolved necessarily.The development on the studying of the degradation mechanism of HPAM was outlined,including chemical degradation and biodegradation.The advantage of biodegradation was explained.And also,the typical strains of HPAM-biodegradation were summarized.This paper could be used for reference in polyacrylamide degradation field.