一种新型复合纳滤膜对污水的深度处理研究

doi:10.3863/j.issn.1000-2634.2008.01.031

西南石油大学学报(自然科学版) ›› 2008, Vol. 30 ›› Issue (1): 112-115.DOI: 10.3863/j.issn.1000-2634.2008.01.031

一种新型复合纳滤膜对污水的深度处理研究

王娟^1，2 陈国华¹ 侯继灵³ 孔祥平²

1.“海洋化学理论与工程技术”教育部重点实验室·中国海洋大学，山东青岛 266100；2.青岛农业大学理学院，山东青岛 266109；3.国家海洋局日照海洋环境监测站，山东日照 276826

收稿日期:2007-03-06 修回日期:1900-01-01 出版日期:2008-02-20 发布日期:2008-02-20
通讯作者: 王娟

Advanced Treatment of Produced Water with a Novel Composite Nanofil Tration Membrane

WANG Juan ^1，2 CHEN Guo-hua¹ HOU Ji-ling³ KONG Xiang-ping²

1.Key Laboratory of Marine Chemistry Theory and Technology,Ministry of Education,Ocean University of China,Qingdao Shandong 266100,China； 2.School of science,Qingdao Nongye University,Qingdao Shandong 266109,China;3.Rizhao Marine Environmental Monitoring Station of state Ocean Administration,Rizhao Shandong 276826,China

Received:2007-03-06 Revised:1900-01-01 Online:2008-02-20 Published:2008-02-20
Contact: WANG Juan

摘要/Abstract

摘要： 考察了一种新型荷负电羧甲基甲壳素/聚丙烯腈复合纳滤膜对污水（中水）的处理效果。结果表明：在1.0MPa、30L/h、室温下，经纳滤膜处理后，溶解态总磷、硝态和亚硝态总氮及COD_Cr的平均截留率分别可达70%、83%和94%以上，而色度几乎可完全去除。纳滤膜出水COD_Cr为3.0~10.2mg/L，达到GB3838—2002地面水Ⅰ类水质标准；硝态和亚硝态总氮（以氮计）质量浓度为2.7~3.5mg/L，达到GB5749—85生活饮用水标准；溶解态总磷（以磷计）质量浓度为1.0~1.7mg/L，已接近1mg/L的污水GB8978—1996Ⅱ级排放标准。提出，由于PO₄^3-与水体中H⁺ 、Ca ²⁺、Mg ²⁺等阳离子较易形成缔合离子或络合离子，减弱了与荷负电的纳滤膜的库仑排斥作用，从而使其截留率小于NO ^3-或NO ^2- ；该纳滤膜适于油田采出污水处理、污水（中水）脱磷、氮和COD_Cr的深度处理及含磷废水的脱磷处理。

关键词: 复合纳滤膜, 脱磷, 脱氮, 污水（中水）, 截留率

Abstract: The negative charged Carboxymethyl chitin(CM-CH)/polyacrylonitrile(PAN) composite membrane is used to treat the produced water.The results indicates that when operating pressure is 1.0MPa,flux is 30L/h,the removal rate of total soluble phosphorus,total nitrogen in NO ^3-and NO ^2- and COD_Cr are above 70%,83% and 94% respectively,and the chroma is almost entirely disappeared.The concentration of CODCr,total nitrogen in NO _^3-and NO _^2- and total soluble phosphorus in the permeation feed are 3.0～10.2mg/L,2.7～3.5mg/L and 1.0～1.4mg/L respectively,which have reached or approached the GB I standard.It is put forward that PO₄^3- is prone to be associative or complexing ions with H ⁺ ,Ca ²⁺,Mg ²⁺which weaken coulomb repulsion strength between the negative charged nanofiltration membrane and the ions,so the removal rate of PO₄^3- is less than NO ^3- or NO^2-.Negative membrane is effective to remove phosphorus,nitrogen and COD_Crin produced water (the reclaimed water) and remove phosphorus from the phosphorous wastewater and produced water.

Key words: composite nanofiltration membrane, removal of phosphorus, removal of nitrogen, produced water (reclaimed water), removal rate

中图分类号:

王娟;陈国华侯继灵孔祥平. 一种新型复合纳滤膜对污水的深度处理研究[J]. 西南石油大学学报(自然科学版), 2008, 30(1): 112-115.

WANG Juan;CHEN Guo-hua HOU Ji-ling KONG Xiang-ping. Advanced Treatment of Produced Water with a Novel Composite Nanofil Tration Membrane[J]. 西南石油大学学报(自然科学版), 2008, 30(1): 112-115.

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一种新型复合纳滤膜对污水的深度处理研究

Advanced Treatment of Produced Water with a Novel Composite Nanofil Tration Membrane

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