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在油田的开发过程中,几乎全部的污水都被回注到地层中,而污水水质(机杂、含油、含铁)是污水回注的重要指标。在现有的污水处理生产方式下,一般均采用除油、沉降、过滤(粗滤、细滤)工艺对污水进行处理。在生产实际中,一般均在除油和沉降的过程中向污水中加入一定量的絮凝剂,使其水解吸附污水中的机杂和少量的油;通过沉降,排污除去部分杂质后,再通过过滤罐的过滤以达到保证水质的目的。但这种方法处理后的污水指标比较高。对污水的二次处理,是在此基础上的污水
During the development of the oilfield, almost all of the wastewater is injected back into the formation, and the quality of the wastewater (miscellaneous, oil, and iron) is an important indicator of wastewater re-injection. In the existing sewage treatment production methods, are generally used oil, sedimentation, filtration (coarse filter, fine filter) process for sewage treatment. In production practice, generally in the process of degreasing and sedimentation to the sewage by adding a certain amount of flocculant, so that the hydrolysis and adsorption of organic impurities in the sewage and a small amount of oil; by settling, sewage to remove some of the impurities, and then by Filter tank filter in order to achieve the purpose of ensuring water quality. However, this method of treatment of sewage indicators is relatively high. The secondary treatment of sewage is based on the sewage