混凝和微滤膜组合工艺处理稠油污水的研究
作者:李刚13,高鑫堂2,李克青1
单位: 1.中国科学院沈阳应用生态研究所,沈阳 110016;2.蓝星环境工程有限公司,北京 101318;3.中国科学院研究生院,北京 100049
关键词: 稠油污水 混凝 微滤 联合工艺 溶解性有机物
DOI号:
分类号: TQ028.8
出版年,卷(期):页码: 2011,31(1):89-93

摘要:
以辽河油田某稠油污水处理厂外排水为对象,采用混凝与微滤膜(MF)处理相结合的方法,从操作压差、膜孔径、混凝处理等多个角度对稠油污水膜分离及组合工艺进行条件优化和效果分析。确定选择0.5μm孔径膜、0.25MPa操作压差为膜最佳操作运行条件;通过常规的混凝和膜分离联合处理方法可有效去除稠油废水中悬浮性及部分可溶性有机污染物,处理后出水COD平均浓度86-97 mgL-1,去除率达到43.4%;且膜清洗通量能够恢复96.8%。结果表明该工艺远优于传统工艺,可以作为稠油污水二级处理保障工艺。
 
A series of experiments were carried out for heavy oil produced water treatment in coagulation - microfiltration system. It could resolve the problem that produced water missing emission control regulations. This paper studied some factors for heavy oil produced water microfiltration treatment such as transmembrane pressure, pore diameter, and coagulation effect. The optimal operation condition was 0.5μm pore diameter and the most favorable pressure was 0.25MPa for microfiltration. The results showed that it is feasible to separate the pollutants from heavy oil produced water by combined method.At the optimal conditions,the COD content in the filtrate was 86-97 mgL-1. The COD removal ratio can reach above 43.4%. The suspended and dissolved organic substances could be separated by different molecular weigh. The recovery of membrane flux can reach up to 96.8%. The combined method can arrive at the emission control regulations.

基金项目:
国家科技重大专项“水体污染控制与治理”资助(2009ZX07208-008)

作者简介:
李刚(1981-),男,吉林人,助研,研究方向为石油污染控制.*通讯联系.(ligang@iae.ac.cn) * 电话:13910437790(高)

参考文献:
[1] 段海霞,朱龙.超稠油废水处理的实验研究[J].环境保护科学,2004,8(30):13-15
[2] 籍国东,孙铁珩,常士俊等.辽河油田超稠油废水潜流湿地处理系统研究[J].中国环境科学2001,21(1):85-88
[3] 郭书海,白玉兴,张海荣等.高浓度超稠油乳化段废水前处理工艺研究[J].环境科学研究,2002,15(1):1-4
[4] 王鑫,郭书海,孙铁珩等.稠油废水处理过程中优势微生物种群的变化规律[J].中国给水排水,2008,24(19):62-66
[5] 尹赐禹,张洪良.超滤法处理油田含油污水的试验研究[J].石油机械,2003,31(8):1-4
[6] 蔺爱国,刘培勇,刘刚等.膜分离技术在油田含油污水处理中的应用研究进展[J],工业水处理,2006,26(1):5-8
[7] 董秉直,陈艳,高乃云等.混凝对膜污染的防止作用[J].环境科学,2005,26(1):90-93.
[8] Oh J,Lee Sh.Influence of streaming potential on flux decline of micro-filtration with inline and pre-coagulation process for drinking water production[J].Jour. of Membrane Science,2005,254(12),39-47
[9] 国家环保总局水和废水监测分析方法编委会.水和废水监测分析方法[M].北京:中国环境科学出版社,2002:211-212
[10] J.C. Camposa, R.M.H. Borgesa, A.M. Oliveira Filho, et. Oilfield wastewater treatment by combined microfiltration and biological processes[J]. Water Research 36 (2002) 95-104

服务与反馈:
文章下载】【加入收藏

《膜科学与技术》编辑部 地址:北京市朝阳区北三环东路19号蓝星大厦 邮政编码:100029 电话:010-64426130/64433466 传真:010-80485372邮箱:mkxyjs@163.com

京公网安备11011302000819号