固化型生化微球处理油田污水试验研究
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摘要
基于油田复杂型污水的物理化学性质,提出了一种生化协同的新方法来适应油田采出水的处理要求,研制了一种将微生物降解技术与化学剂有机结合的固化型生化微球。采用包埋法制备固化微球并开展了油田污水的降解试验,利用荧光法测定了微球作用时间,明确了降解机制。研究结果表明:固化微球对原油中的重烃组分有降解作用,沥青质的质量分数下降了约22%;固化微球在染色的过程中表现出较好的传质性能;金属酞菁催化法比常规除硫工艺可以缩短曝氧时间至少5 h,且金属酞菁催化剂可重复使用5次。固化微球协同金属酞菁催化氧化脱硫技术为油田采出污水处理研究提供了新的思路。
Based on the physical and chemical properties of complex oilfield wastewater, a new biochemical cooperative method is proposed to meet the requirements of oilfield produced water treatment. A immobilized biochemical microsphere is developed, which combines microbial degradation technology with chemical agents. The immobilized microspheres are prepared by embedding method and the degradation experiments of oilfield wastewater are carried out. The action time of the microspheres is determined by fluorescence method, and the degradation mechanism is clarified. The results show that the immobilized microspheres can degrade the heavy hydrocarbon components in crude oil, and the mass fraction of asphaltene decreases by about 22%. The immobilized microspheres show better mass transfer performance in dyeing process. The metal phthalocyanine catalytic method can shorten the aeration time by at least 5 hours compared with the conventional desulfurization process, and the metal phthalocyanine catalyst can be reused for five times. Immobilized microspheres combined with metal phthalocyanine catalytic oxidation desulfurization technology provides a new idea for the research of oilfield produced sewage treatment.
Based on the physical and chemical properties of complex oilfield wastewater, a new biochemical cooperative method is proposed to meet the requirements of oilfield produced water treatment. A immobilized biochemical microsphere is developed, which combines microbial degradation technology with chemical agents. The immobilized microspheres are prepared by embedding method and the degradation experiments of oilfield wastewater are carried out. The action time of the microspheres is determined by fluorescence method, and the degradation mechanism is clarified. The results show that the immobilized microspheres can degrade the heavy hydrocarbon components in crude oil, and the mass fraction of asphaltene decreases by about 22%. The immobilized microspheres show better mass transfer performance in dyeing process. The metal phthalocyanine catalytic method can shorten the aeration time by at least 5 hours compared with the conventional desulfurization process, and the metal phthalocyanine catalyst can be reused for five times. Immobilized microspheres combined with metal phthalocyanine catalytic oxidation desulfurization technology provides a new idea for the research of oilfield produced sewage treatment.
引文
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[3] VITALE P,RAMOS P B,COLASURDO V,et al.Treatment of real wastewater from the graphic industry using advanced oxidation technologies:degradation models and feasibility analysis[J].Journal of Cleaner Production,2019,206:1041-1050.
[4] 周妺妍.负载型全氟金属酞菁的制备及催化性能研究[D].杭州:浙江理工大学,2018.
[5] 汪露琳.非均相金属酞菁催化降解有机污染物及活性增强机制[D].杭州:浙江理工大学,2018.
[6] 竺哲欣.聚合物纳米纤维负载金属酞菁催化降解有机污染物的研究[D].杭州:浙江理工大学,2018.
[7] 郭小哲,韩文磊,牛慧珍,等.基于专利分析的纳米采油技术发展趋势[J].石油科技论坛,2017,36(3):32-40.
[8] 石芳.微生物/化学法处理含油污水试验研究[D].大庆:东北石油大学,2017.
[9] 程亚敏,杜静,罗文瑞,等.聚丙烯酰胺/2-丙烯酰胺-2-甲基-丙磺酸钠聚合物接枝纳米SiO2驱油剂的合成及其性能[J].化学研究,2017,28(2):230-235.
[10] 高军飞.凝胶微囊深部调剖体系与储层渗透率的匹配性试验[D].大庆:东北石油大学,2016.
[11] 石芳,吴景春.金属酞菁催化氧化含硫化合物的试验研究[J].当代化工,2015,44(8):1737-1739.
[12] ALI I,PENG C S,KHAN Z M,et al.Overview of microbes based fabricated biogenic nanoparticles for water and wastewater treatment[J].Journal of Environmental Management,2019,230:128-150.
[13] SHI F,WU J C,ZHAO B.Preparation and investigation of intelligent polymeric nanocapsule for enhanced oil recovery[J].Materials,2019,12(7):1093.
[14] 包木太,骆克峻,陈庆国,等.生物接触氧化法处理油田含聚污水室内模拟试验[J].西安石油大学学报(自然科学版),2009,24(1):79-84.
[15] 常帆,陈立,陈亮,等.聚合物驱采出水中聚丙烯酰胺的微生物联合降解作用研究[J].环境工程学报,2010(11):2466-2472.
[16] 郭大立,张戈,关晓燕.包埋固定化法处理石油污染水体应用研究进展[J].赤峰学院学报(自然科学版),2013(1):17-19.
[17] 郝春雷,刘永建,王大威,等.复合菌降解聚丙烯酰胺的性能和机理研究[J].油田化学,2008,25(2):175-180.
[18] 郝春雷.聚合物驱后油藏高效驱油菌种的构建[D].大庆:大庆石油学院,2009.
[19] 廖广志,石梅,李蔚,等.以部分水解聚丙烯酰胺和原油为营养源的微生物筛选及性能评价[J].石油学报,2003,24(6):59-63.