天然有机物对不同孔径超滤膜的污染特性研究
PDF下载 (449)朱逸康,胥倩倩,黄瑶瑶,朱冰儿,董秉直,余振勋.天然有机物对不同孔径超滤膜的污染特性研究[J].宁波大学学报(理工版),2019,32(1):109-114.DOI:
ZHU Yi-kang,XU Qian-qian,HUANG Yao-yao,ZHU Bing-er,DONG Bing-zhi,YU Zhen-xun.Characteristics of natural organic matter fouling of ultrafiltration membrane[J].Journal of Ningbo University(Natural Science & Engineering Edition),2019,32(1):109-114.DOI:
| Title: | Characteristics of natural organic matter fouling of ultrafiltration membrane |
| 作者: | 朱逸康, 胥倩倩, 黄瑶瑶, 朱冰儿, 董秉直, 余振勋 |
| Author(s): | ZHU Yi-kang, XU Qian-qian, HUANG Yao-yao, ZHU Bing-er, DONG Bing-zhi, YU Zhen-xun |
| 关键词: | 天然有机物; 腐殖酸; 超滤; 膜污染 |
| Keywords: | natural organic matter; humic acid; ultrafiltration; membrane fouling |
| 分类号: | TU991.24 |
| 文献标识码: | A |
| 摘要: | 膜污染是阻碍膜分离技术广泛应用的瓶颈, 是水处理领域研究的重点. 采用RC平板膜进行膜污染试验, 对超滤膜去除天然有机物的效能和膜污染机理进行研究, 模拟天然地表水研究腐殖酸(HA)吸附、沉积、浓差极化3种不同膜污染机理; 同时, 考察水质环境条件对膜过滤性能的影响. 结果表明, HA能造成膜通量的明显下降, 其中静态吸附、浓差极化造成的膜通量下降较膜孔窄化和滤饼层形成的影响相对更小; 另外, 滤饼导致的通量下降可以通过物理清洗恢复, 而膜孔窄化造成的通量下降在一定程度上不可逆, 且离子强度的增大会加剧膜污染速率. |
| Abstract: | Membrane fouling stands in the way as a bottleneck limiting a diversity of applications using membrane filtration technology, and it has been the research focus in water treatment field. Flat sheet membranes made of RC is used in the experiment of membrane fouling conducted in this research. The removal of natural organic matter and the mechanism of membrane fouling are investigated, including humic acid (HA) adsorption, aggregate deposition and concentration polarization. The effect of the environmental conditions on membrane filtration performance is also studied. The results show that HA can significantly decrease the membrane flux, in which static adsorption and concentration polarization may cause insignificant flux decline compared with that caused by membrane pore narrowing and cake layer formation. In addition, the flux decrease caused by cake layer can be recovered by physical cleaning. However, the flux decrease caused by pore narrowing is irreversible to a certain extent, and the membrane fouling is found to deteriorate with increasing ionic strength. |
| 参考文献 /References: | [1] 李圭白, 杨艳玲. 超滤-第三代城市饮用水净化工艺的核心技术[J]. 供水技术, 2007, 1(1):1-3. [2] Tian J Y, Ernst M, Cui F, et al. Correlations of relevant membrane foulants with UF membrane fouling in different waters[J]. Water Research, 2013, 47(3):1218-1228. [3] Winter J, Uhl W, Bérubé P R. Integrated oxidation membrane filtration process - NOM rejection and membrane fouling[J]. Water Research, 2016, 104:418-424. [4] Wang L F, Benjamin M M. A multi-spectral approach to differentiate the effects of adsorbent pretreatments on the characteristics of NOM and membrane fouling[J]. Water Research, 2016, 98:56-63. [5] Sch?fer A I, Schwicker U, Fischer M M, et al. Microfiltration of colloids and natural organic matter[J]. Journal of Membrane Science, 2000, 171(2):151-172. [6] Lin C F, Liu S H, Hao O J, et al. Effect of functional groups of humic substances on UF performance[J]. Water Research, 2001, 35(10):2395-2402. [7] 孙丽华, 俞天敏, 田海龙, 等. 典型有机物与超滤膜界面作用及膜污染机制研究[J]. 环境科学学报, 2016, 36(2):530-536. [8] 史慧婷, 杨艳玲, 李星, 等. HA对超滤膜污染特性的研究[J]. 哈尔滨商业大学学报(自然科学版), 2010, 26(5):536-540. [9] 胡文. 腐殖酸溶液对超滤膜污染的原因研究[J]. 环境科学与管理, 2015(8):84-88. [10] 张慧, 于海琴. 水中天然有机物对超滤膜污染研究[J]. 工业用水与废水, 2007, 38(4):98-101. [11] 华耀祖. 超滤技术与应用[M]. 北京: 化学工业出版社, 2004. [12] Yuan W, Zydney A L. Humic acid fouling during ultrafiltration[J]. Environmental Science & Technology, 2000, 34(23):1-12. [13] Yuan W, Zydney A L. Humic acid fouling during micro-filtration[J]. Journal of Membrane Science, 1999, 157(1):1-12. [14] Wang P, Xia D. Purification effects of ultrafiltration membrane on micro polluted water and analysis on fouling mechanism[J]. Environmental Science & Management, 2016(4):86-90. [15] Teow Y H. Characterization and performance evaluation of ultrafiltration membrane for humic acid removal[J]. Indian Journal of Science & Technology, 2016, 9(22):1-8. [16] Tang C Y, Chong T H, Fane A G, et al. Colloidal interactions and fouling of NF and RO membranes: A review[J]. Advances in Colloid & Interface Science, 2011, 164(1):126-143. [17] Tian J Y, Ernst M, Cui F, et al. Effect of different cations on UF membrane fouling by NOM fractions[J]. Chemical Engineering Journal, 2013, 223(5):547-555. [18] 王旭东, 王磊, 康雅, 等. 水中环境条件对污水深度超滤过程中膜污染的影响[J]. 水处理技术, 2007, 33(11):49-52. [19] Ma B, Ding Y, Li W, et al. Ultrafiltration membrane fouling induced by humic acid with typical inorganic salts[J]. Chemosphere, 2018, 197:793-802. [20] Lin T, Lu Z J, Chen W, et al. Interaction mechanisms of humic acid combined with calcium ions on membrane fouling at different conditions in an ultrafiltration system[J]. Desalination, 2015, 357(9679):26-35. [21] Wang H, Ding A, Cheng X X, et al. Influence of calcium ion on membrane fouling during ultrafiltration of natural organic matter[J]. China Water & Wastewater, 2017, 15:41-45. [22] Miao R, Wang L, Deng D, et al. Evaluating the effects of sodium and magnesium on the interaction processes of humic acid and ultrafiltration membrane surfaces[J]. Journal of Membrane Science, 2017, 526:131-137. [23] Wang L F, He D Q, Chen W, et al. Probing the roles of Ca2+ and Mg2+ in humic acids-induced ultrafiltration membrane fouling using an integrated approach[J]. Water Research, 2015, 81(15):325-332. [24] 刘紫文, 王磊, 苗瑞, 等. 用微观作用力解析无机离子对HA的膜污染行为影响[J]. 环境工程学报, 2015, 9(2):531-536. |
| 备注/Memo: | 收稿日期: 2018－04－28. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/基金项目: 国家科技重大专项（2017ZX07201001）; 宁波市科技局重大科技攻关项目（2015C110001）.第一作者: 朱逸康（1994－）, 男, 浙江杭州人, 在读硕士研究生, 主要研究方向: 膜法水处理技术. E-mail: 2638004537@qq.com*通信作者: 余振勋（1981－）, 男, 浙江衢州人, 副教授, 主要研究方向: 膜法水处理技术. E-mail: yuzhenxun@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
