膜科学与技术

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Study on the composite cleaning technology of fouled membrane by real textile wastewater

Authors：

CHEN Chunmei,LI Xiufen,LIU Chunyan,ZHOU Qia14, REN Yueping,

ZHANG Linzhong, WANG Xinhua, SHANG Haibo

Units： 1.School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China; 2.Jiangsu Key Laboratory of Anaerobic Biotechnology, Wuxi 21412; 3.Jiangsu Cooperative Innovation Center of Technology and Material of Water Treatment, Suzhou 215009; 4.Jiangsu Lantian Peier Membrane CO. LTD, Yixing 214200, China

KeyWords： textile wastewater;membrane bioreactor; membrane fouling; chemical cleaning

ClassificationCode：X703

year,volume(issue):pagination： 2015,35(6):87-92

Abstract：

Under different types of wastewater and operational management, membrane fouling rate, fouling layer composite and its property as well as the cleaning strategy were different. Targeting at fouled membranes treating real textile wastewater, the cleaning agent dosage and composite cleaning technology were explored, and the parameters of cleaned membrane evaluated in this research. It was helpful to obtain the optimal cleaning solution for practical wastewater treatment plant. The results showed that 0.5% sodium hypochlorite with a dosage of 20 L/m2 and 3% citric acid with a dosage of 40 L/m2 were optimal. The cleaning function of ultrasonic and citric acid was similar, which was to improve the porosity of fouling layer. The optimal cleaning strategy was to ultrasonically clean for 1 h, immerse fouled membranes in 0.5% sodium hypochlorite solution for 3 h and finally in 3% citric acid solution for 3 h. The membrane after cleaning exhibited similar appearances and properties to a new one. Energy dispersive X-ray spectroscopy (EDX) analysis showed that the foulants on/in the surface of the fouled membrane were mainly organic matter with a small amount of inorganic matter. The main elements on/in the surface of the cleaned membrane were C and F elements, but O and metal elements were totally removed. That showed excellent cleaning efficiency.

Funds：

国家高技术研究发展计划（863计划）子课题（2012AA063407）；江苏省科技支撑计划-社会发展项目（BE2014606）；水体污染控制与治理科技重大专项子课题（2012ZX07101-013-04）；江苏省“六大人才高峰”项目（2011-JNHB-004）

AuthorIntro：

第一作者：陈春梅（1991—），女，江苏盐城人，主要研究方向为读研究生.E-mail:ccmjin@163.com

Reference：

[1]Xiang Zheng, Junxin Liu. Dyeing and printing wastewater treatment using a membrane bioreactor with a gravity drain [J]. Desalination, 2006, 190, 277-286
[2]Huifang Wu, Shihe Wang, Huoliang Kong, et al. Performance of combined process of anoxic baffled reator-biological contact oxidation treating printing and dyeing wastewater [J]. Bioresource technology, 2007, 98(7): 1501-1504
[3]V.K. Gupta, Suhas. Application of low-cost adsorbents for dye removal – A review [J]. Journal of Environmental Management, 2009,90(8): 2313-2342
[4]John Howell A. Future of membranes and membrane reactors in green technologies and for water reuse [J]. Desalination, 2004, 162: 1-11
[5]白玲, 蓝伟光, 严滨, 等. 废水处理中膜生物反应器的研究进展 [J]. 膜科学与技术，2008, 28(1): 91-96
[6]刘杨. 膜污染与清洗技术 [J]. 北方环境, 2013, 4: 131-134
[7]郭春禹, 原学贵, 杨晓伟, 等. 膜清洗技术应用研究 [J]. 清洗世界, 2010, 26(12): 1-7
[8]袁新兵. 膜碱性清洗剂的制备及其性能研究 [J]. 膜科学与技术, 2013, 33(5): 82-86
[9]钱睿. 聚偏氟乙烯超滤膜性能表征及其中水回用应用 [D]. 上海: 华东理工大学, 2013
[10]陆贤, 刘伟京, 涂勇, 等. 次氯酸钠氧化法深度处理造纸废水试验研究 [J]. 环境科学与技术，2011, 34(3): 90-92
[11]李雅莉. 超声波清洗的原理和实际应用 [J]. 清洗世界, 2006, 22(7): 31-35
[12]陆隽. 化学清洗对中空纤维式PVC超滤膜性能的影响研究 [D]. 广东: 华南理工大学, 2012

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