序批工艺与微生物工艺处理含聚污水适应性评价

发布时间：2018-01-09 07:08

本文关键词：序批工艺与微生物工艺处理含聚污水适应性评价　出处：《东北石油大学》2017年硕士论文　论文类型：学位论文

【摘要】：当前,随着聚合物驱的工业化推广,含聚污水处理量越来越大,聚合物浓度不断升高,污水处理难度也加大。含油污水,绝大部分用于回注,其余需要外排。目前处理普通污水的物理法工艺技术已经不能适应含聚污水处理水质的需要,含聚污水出水水质不达标。这部分污水不仅含有石油类,还含有固体悬浮物、浮油及分散油,以及化学药剂等多种成分。高浓度氨氮废水的增加,造成了水体中藻类及其它菌类的大量繁殖,使得水体富营养化,导致水体中溶解氧下降,鱼类大量死亡,水体生态平衡破坏,影响人们的正常生活及生产活动。同时,含聚污水回注对地面处理工艺、油层和井筒都会产生不同程度的负面影响,聚合物对含油污水含油量的测定也有一定的影响,还会引起常规污水重力式滤罐的堵塞,给油田的生产操作带来极大的不便。为此我们应用了微生物工艺和序批工艺处理含聚污水,以提高含聚污水处理效果,实现油水分离、注入水质达标。所调研油矿建有含聚污水处理站共两座,分别为采油1号含聚污水处理站,采用微生物技术处理含聚污水,采油2号含聚污水处理站,采用序批工艺处理含聚污水。两座污水处理站采取不同的工艺处理含聚污水。针对现有两种工艺对含聚污水处理现状,通过对来水水质、处理工艺及处理后水质指标进行分析,并针对两种处理工艺的运行成本进行经济评价,力求摸索出含聚污水的适合处理工艺,更好的提高含聚污水水质,使之达到外排的要求,对地面污水处理工艺具有一定的指导意义,对环境保护也有着重要的意义。本文的研究对处理油田污水具有一定的指导意义和使用价值。
[Abstract]:At present, with the industrialization of polymer flooding, the amount of polymer wastewater treatment is increasing, polymer concentration is increasing, and the difficulty of sewage treatment is also increased. Most of oily sewage is used for reinjection. At present, the physical process technology of ordinary sewage treatment can not meet the needs of water quality treatment of polymerized sewage, and the effluent water quality is not up to standard. This part of sewage not only contains petroleum. It also contains solid suspensions, oil slick and dispersing oil, as well as chemical agents. The increase of high concentration ammonia-nitrogen wastewater has resulted in a large number of algae and other fungi in the water body, which makes the water eutrophication. It leads to the decline of dissolved oxygen in the water, the death of a large number of fish, the destruction of the ecological balance of the water body, which affects the normal life and production activities of people. Both reservoir and wellbore have different negative effects, polymer has certain influence on oil content determination of oily sewage, and it can also cause blockage of conventional sewage gravity filter. In order to improve the treatment effect of polymerized sewage and realize the separation of oil and water, the microbial process and sequential batch process are used to treat the polymerized sewage. The injected water quality is up to the standard. The investigated oil mine has two sewage treatment stations, one of which is the oil recovery No. 1 polymer sewage treatment station, the other is the oil recovery No. 2 polymer sewage treatment station, which uses microbial technology to treat the polymerized sewage and the oil recovery No. 2 polymer sewage treatment station. The sequence batch process is used to treat the polymerized sewage. The two sewage treatment stations adopt different processes to treat the polymerized sewage. In view of the present situation of the two kinds of processes, the water quality of the incoming water is analyzed. The treatment process and the water quality index after treatment were analyzed and the economic evaluation of the operation cost of the two treatment processes was carried out in order to find out the suitable treatment process of the polymerized sewage and to improve the water quality of the polymerized sewage better. It has certain guiding significance to surface sewage treatment process and important significance to environmental protection. The research in this paper has certain guiding significance and practical value for treating oilfield sewage.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：X741

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