首页 馆藏资源 舆情信息 标准服务 科研活动 关于我们
现行 AWWA MTC57570
到馆提醒
收藏跟踪
购买正版
Fouling Resistant Reverse Osmosis Membranes 抗污染反渗透膜
发布日期: 2003-03-05
本文介绍了一种新型的耐污染反渗透膜,这种膜的制造工艺更加复杂 亲水性和少带电或带电与污染物相同,以减少疏水性 相互作用和电荷吸引或增加电荷排斥。耐污染 膜最近由韩国的Saehan Industries,Inc.通过涂层反渗透膜制造 与亲水性单体发生聚合和交联反应。耐污染 当两种膜同时存在时,反渗透膜的通量降低比常规反渗透膜小得多 分别使用30 ppm的奶粉、50 ppm的阳离子表面活性剂、50 ppm的非离子表面活性剂和50 ppm的 分别为ppm腐殖酸。 根据膜表面电荷(zeta电位)和表面张力对涂层膜进行了表征 疏水性(接触角)。涂层膜显示出的负电荷比普通膜少得多 普通无涂层膜,但涂层膜的接触角与 普通膜。使用各种涂层化合物控制膜表面电荷。这个 用亚甲基蓝等阳离子染料对膜表面进行染色。这个 染色强度与膜上的负电荷程度呈线性关系。这个 普通的无涂层膜由于带有最多的负电荷而被染色最多。薄膜 阳离子表面活性剂的污垢也与表面的负电荷程度呈线性相关 膜。非离子表面活性剂和腐殖酸对膜的污染有一定的关系 污染物和膜之间的疏水相互作用。膜污染 干牛奶似乎受到疏水效应、电荷效应和一些胶体效应的混合影响 存款。 在使用8040元件的现场试验中,耐污染膜保持了更高的渗透性 与常规膜相比,现代汽车(Hyundai Motor Co.)将两种膜都与工业废水混合,以供使用 大约40天。抗污染反渗透膜已在三星电子有限公司成功用于废水处理。 大约五个月。包括5个参考文献、表格、图表。
This paper deals with new fouling resistant RO membranes which are made more hydrophilic and less charged or charged with the same charge as the foulants to reduce hydrophobic interaction and charge attraction or to increase charge repulsion, respectively. The fouling resistant membranes were recently manufactured by Saehan Industries, Inc. in Korea via coating RO membranes with hydrophilic monomers followed by polymerization and cross-linking reaction. The fouling resistant RO membranes showed much less flux reduction than the regular RO membrane when both membranes were subjected to 30 ppm dry milk, 50 ppm a cationic surfactant, 50 ppm a nonionic surfactant and 50 ppm humic acid, respectively. The coated membranes were characterized in terms of membrane surface charge (zeta potential) and hydrophobicity (contact angle). The coated membranes showed much less negative charge than the regular uncoated membrane, but the contact angle of the coated membrane was about the same as the regular membrane. The membrane surface charge was controlled using various coating compounds. The membranes with various surface charges were dyed with a cationic dye such as methylene blue. The intensity of dyeing was linearly correlated with the degree of the negative charge on the membranes. The regular uncoated membrane was dyed the most since it has the most negative charge. The membrane fouling by the cationic surfactant was also linearly correlated with the degree of the negative charge on the membranes. The membrane fouling by the nonionic surfactant and humic acid had some relation with hydrophobic interaction between the foulants and the membranes. The membrane fouling by the dry milk appeared to be influenced by a mixture of hydrophobic effect, charge effect and some colloidal deposits. In a field test using 8040 elements, the fouling resistant membrane maintained much higher permeability than the regular membrane when both are fed with an industry wastewater at Hyundai Motor Co. for about 40 days. The fouling resistant RO membrane has been successfully in operation for treating wastewater at Samsung Electronics Co. for about five months. Includes 5 references, tables, figures.
分类信息
发布单位或类别: 美国-美国给水工程协会
关联关系
研制信息
相似标准/计划/法规
现行
AWWA JAW17332
Journal AWWA - Bacterial Adhesion and Fouling of Reverse Osmosis Membranes
AWWA期刊-反渗透膜的细菌粘附和污染
1985-07-01
现行
AWWA MTC61142
Reverse Osmosis Membrane Fouling in Agricultural Drainage Water Reclamation
农业污水回用中的反渗透膜污染
2005-03-01
现行
AWWA MTC64632
Using Pretreatment Processes to Evaluate Fouling Mechanisms for Reverse Osmosis Membranes
用预处理工艺评价反渗透膜的污染机理
2007-03-01
现行
AWWA MTC95016
Colloidal Fouling of Reverse Osmosis Membranes: Experimental Results, Fouling Mechanisms, and Implications for Water Treatment
反渗透膜的胶体污染:实验结果、污染机理和对水处理的影响
1995-01-01
现行
AWWA MTC61186
Rejection of Non-ionic Organic Micropollutants by Reverse Osmosis and Nanofiltration Membranes: Effect of Membrane Fouling
反渗透和纳滤膜对非离子有机微污染物的截留:膜污染的影响
2005-03-01
现行
AWWA ACE56183
Effect of Solution Composition on the Performance and Fouling of Polymeric Reverse Osmosis and Nanofiltration Membranes
溶液组成对聚合物反渗透和纳滤膜性能和污染的影响
2002-06-16
现行
AWWA MTC57614
Low Fouling Reverse Osmosis Membranes: Evidence to the Contrary on Microfiltered Secondary Effluent
低污染反渗透膜:与微滤二级出水相反的证据
2003-03-05
现行
AWWA WQTC62463
Effect of Membane Properties on Fouling of Reverse Osmosis Membranes by Biopolymers in Wastewater Secondary Effluent
Membane性质对废水二级出水中生物聚合物污染反渗透膜的影响
2005-11-01
现行
AWWA MTC61218
Impact of Conventional Pre-Treatment Prior Reverse Osmosis Desalination Membranes on Fouling Potential of Seawater
常规预处理-反渗透脱盐膜对海水污染的影响
2005-03-01
现行
AWWA WQTC60679
Organic Fouling of Polyamide Reverse Osmosis: Effect of Natural Organic Matter Properties on Membrane Performance
聚酰胺反渗透的有机污染:天然有机物性质对膜性能的影响
2004-11-15
现行
AWWA MTC53651
Evaluating the Performance of a Reverse Osmosis Composite Membrane Applicable to the Treatment of High Fouling Municipal Wastewaters
反渗透复合膜处理高污染城市污水的性能评价
2001-05-01
现行
GB/T 32373-2015
Test methods for reverse osmosis membranes
2015-12-31
现行
AWWA MTC53721
Membrane Replacement in Reverse Osmosis Facilities
反渗透装置中的膜更换
2001-05-01
现行
GB/T 32373-2015
反渗透膜测试方法
Test methods for reverse osmosis membranes
2015-12-31
现行
AWWA MTC69787
Bench-Scale Seawater Reverse Osmosis: Fouling Characterization
实验室规模的海水反渗透:污垢特性
2009-11-01
现行
AWWA MTC69762
Use of Aeration and Filtration to Control Iron Fouling in Reverse Osmosis
利用曝气和过滤控制反渗透中的铁污染
2009-11-01
现行
AWWA MTC95005
Ultra-Low Pressure Reverse Osmosis Membranes
超低压反渗透膜
1995-01-01
现行
AWWA WQTC57086
Rejection of Heavy Metals by Reverse Osmosis Membranes
反渗透膜对重金属的截留
2002-11-01
现行
AWWA MTC53680
Fouling Behavior of Reverse Osmosis and Nanofiltration Membranes During Bench- and Full-Scale Filtration of a High Organic Surficial Groundwater
反渗透和纳滤膜在高有机表层地下水台架和全尺寸过滤过程中的污染行为
2001-05-01
现行
AWWA ACE68820
Fouling by Algogenic Organic Matter (AOM) in Seawater Reverse Osmosis Desalination
反渗透海水淡化中有机物(AOM)的污染
2008-11-01