共查询到20条相似文献,搜索用时 86 毫秒
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针对吉林油田稠油热采污水中的油含量高和悬浮质含量高,采用絮凝法处理稠油热采污水,并进行高效絮凝剂的筛选.在对含油污水成分分析的基础上,采用烧杯实验和分光光度法研究了絮凝剂的絮凝效果.筛选出了以无机絮凝剂硫酸铝与两性高分子聚合物CE-3090的复配体系,同时研究了影响絮凝效果的因素并探究了其影响机理.结果表明,在温度40℃,pH值7.72,170 r/min高速搅拌1 min,然后50 r/min低速搅拌5 min,硫酸铝的加量90 mg/L,CE-3090的加量0.5 mg/L,絮凝沉降30min后其絮凝效果较好.试验证明该复配处理剂处理含油污水后,含油量和杂质含量都达到了回注回用及排放标准. 相似文献
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采用自制聚铁絮凝剂处理锦州采油厂含聚污水。结果表明,水样的含聚量是影响絮凝的主要因素,同一水样的p H值对絮凝效果的影响最显著。通过五种絮凝剂进行对比,在最佳投加量条件下,对于低聚类、中聚与高聚类污水采用聚铁絮凝剂的处理效果都较好。聚铁絮凝剂的絮凝性能和稳定性明显优于多种油田现用絮凝剂,其具有良好的工业应用前景。 相似文献
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采用化学混凝、物理过滤分离的方法处理含油污水。研究了盘河油田采油污水的处理工艺配方;讨论了污水含油量与药剂投加量的关系和药剂的最佳配比及加药的顺序等影响因素;验证了处理后水与地层水的配伍性;确定了处理工艺方案。结果表明:可将盘河油田含油污水处理为合格的注入水;处理后的水质达到SY/T5329-1994标准;污水处理工艺流程简单,适合现场应用,经济可行。 相似文献
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微生物絮凝剂作为一种新型的水处理剂,具有绿色、安全、活性高、易分解、无二次污染等优点,可应用于生活污水处理、工业废水处理、印染废水处理、饮用水净化等方面,受到学者们越来越广泛的关注,具有良好的科学研究价值和市场推广应用前景。作者通过大量文献调研和分析总结,综述了微生物絮凝剂的特点、种类,分析了影响微生物絮凝剂絮凝效果的关键因素,总结了微生物絮凝剂目前存在的问题及不足之处。不同于微生物絮凝剂在其它水处理中的应用,生活污水处理过程中微生物絮凝剂的应用意义更为重大,文章着重介绍了微生物絮凝剂在生活污水处理中的应用进展,以期为微生物絮凝剂的科学化研究、规模化生产及产业化应用提供参考。 相似文献
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电化学方法具有无二次污染、工艺简单、容易操作、运行维护方便等优点,在含油废水处理领域逐渐受到应用。文章主要对电絮凝、电氧化及微电解三种电化学方法的基本原理及研究进展进行了简单的介绍。讨论了电化学方法在处理含油废水时的可行性,指出该技术存在的主要问题以及发展方向。 相似文献
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阐述了油田污水中分散油和乳状油的处理方法,并分析了目前污水处理中存在的问题,探讨了油田污水处理的发展趋势。 相似文献
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《分离科学与技术》2012,47(18):2968-2974
The treatment of oily wastewater produced from polymer flooding (OWPF) is a big problem for offshore oilfields. A non-ionic surfactant named poloxyproylenated-poloxyethyleneated hydrogenated tallow alkyl secondary amine (PPHTA) was prepared. The relationship between its interfacial tension and temperature and the result of conductivity measurement showed that its phase inversion temperature (PIT) was about 60°C and it had good interfacial activity. Then, OWPF was treated by PPHTA. It was interesting that the PPHTA had a good performance for treatment of OWPF at the temperature which was higher than its PIT. At 63°C, after the treatment by PPHTA at dosage of 800 mg/L, the oil content in OWPF changed from 4724 mg/L to 72 mg/L. The reason was discussed and it was proposed that the PPHTA can displace the natural active agents in OWPF and form a new oil-PPHTA-water emulsion. When the temperature increased, the hydrophilic- lipophilic deviation (HLD) of oil-PPHTA-water moved to zero and the emulsion stability decreased. At the PIT, the most unstable emulsion was formed and it was destroyed after stirring. In addition, it is important to note that the floc of PPHTA was composed of oil drops and was not viscous. The result was different from the viscous floc caused by the cationic polymer. 相似文献
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《分离科学与技术》2012,47(7):999-1007
The objectives are to evaluate the feasibility of treating oily wastewater using synthetic polymers (polyaluminum chloride (PAC), polyferric sulfate (PFS), and polyacrylamide (PAM)) combined with natural diatomite and to refine the operating parameters using diatomite as an adsorbent and a coagulant aid. The enhanced coagulation/flocculation by combining PAC with diatomite was investigated through mechanism analysis compared to the combination of PFS/PAM with diatomite, respectively. The effects of coagulant dose, initial pH, and settling time on chemical oxygen demand (COD) and turbidity were studied using PAC-diatomite in comparison with using PAC only. The enhanced coagulation/flocculation of diatomite with PAC was better than that with PFS/PAM in terms of COD/turbidity removal and floc settling characteristics, considering costs. The PAC-diatomite system reduced more than 70% of COD and 90% of turbidity over a wide pH range (7–10) within 20 min, with the optimum dose of PAC 50 mg/l and diatomite 1250 mg/l. The added diatomite effectively saved over 85% of PAC dose and simultaneously increased over 50% of COD removal efficiency. This study provided a novel and economical approach for diatomite utilization in the treatment of oily wastewater, satisfying the demands of reuse or reinjection into the ground. 相似文献