Experimental study on treatment of sanitary sewage by coupling technology of ballasted flocculation and ultrafiltration

doi:10.19965/j.cnki.iwt.2022-0643

Abstract

Abstract:

During the sanitary sewage treatment process of ballasted flocculation and ultrafiltration，the removal efficiency and mechanism of pollutants by polyferric sulfate-poly（dimethyldiallylammonium chloride） composite flocculant（PFS-PDMDAAC） were investigated，respectively. Combined with floc morphology and cake layer resistance characteristics under different micro-sand dosages，the effect mechanism of PFS-PDMDAAC flocculant on membrane flux attenuation was further studied. The results indicated that PFS-PDMDAAC could effectively remove protein organic compounds，leading to effectively reducing pollution load into membrane pores. Moreover，the addition of micro-sand could promote the formation of flocs with large particle size and fractal dimension，which effectively reduced the cake layer resistance of the membrane，so it consequently slowed down the decay rate of membrane flux.

Key words: ballasted flocculation, sanitary sewage, cake layer, ultrafiltration, membrane fouling

摘要：

在加载絮凝-超滤耦合工艺处理城镇生活污水过程中，考察聚合硫酸铁-聚二甲基二烯丙基氯化铵（PFS-PDMDAAC）絮凝剂对污染物的去除率及絮凝机理，并结合不同微砂投加量下絮体形态及滤饼层阻力特征，进一步探究其对膜通量衰减的影响作用机制。结果表明，PFS-PDMDAAC可有效去除蛋白类有机物，减少进入膜孔的污染负荷；在絮凝体系中投加微砂可促进形成尺寸大且结构较为密实的絮体，这种絮体滤饼层可有效减少膜的滤饼层阻力，从而减缓膜通量的衰减速率。

关键词: 加载絮凝, 城镇生活污水, 滤饼层, 超滤, 膜污染

CLC Number:

X703.1

Hao WEN, Xutao ZHAO. Experimental study on treatment of sanitary sewage by coupling technology of ballasted flocculation and ultrafiltration[J]. Industrial Water Treatment, 2023, 43(5): 129-134.

闻豪, 赵旭涛. 加载絮凝-超滤耦合工艺处理城镇生活污水的实验研究[J]. 工业水处理, 2023, 43(5): 129-134.

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URL: https://www.iwt.cn/EN/10.19965/j.cnki.iwt.2022-0643

https://www.iwt.cn/EN/Y2023/V43/I5/129

Figures/Tables 8

Fig. 1 Schematic diagram of ballasted flocculation and UF experiment

Fig. 2 Effect of PFS-PDMDAAC dosage on pollutant removal rate

Fig.3 Three-dimensional fluorescence spectra

Table 1 Position and intensity of fluorescence peak

水样	峰A		峰B
水样	位置（λ_Ex/λ_Em）	峰值强度	位置（λ_Ex/λ_Em）	峰值强度
原水	230 nm/325 nm	2 799	275 nm/325 nm	2 749
絮凝后	225 nm/325 nm	1 848	280 nm/325 nm	1 154

Fig. 4 Schematic diagram of UF membrane fouling

Fig. 5 Effect of micro-sand dosage on FI

Fig. 6 Effect of micro-sand on membrane resistance distribution

Fig. 7 Decay of membrane specific flux

References 21

1	孙茜萍. 絮凝-超滤去除城市污水中有机物的实验研究［J］. 工业水处理，2019，39（6）：73-76. doi:10.11894/iwt.2018-0881
	SUN Xiping. Experimental research on the removal of organic matter from urban sewage by the combined process flocculation-ultrafiltra-tion［J］. Industrial Water Treatment，2019，39（6）：73-76. doi:10.11894/iwt.2018-0881
2	闻豪，凌晓. 微絮凝对超滤膜处理城市污水的影响［J］. 工业水处理，2021，41（11）：84-88. doi:10.19965/j.cnki.iwt.2021-0171
	WEN Hao， LING Xiao. Influences of micro-flocculation on treatment of municipal wastewater by ultrafiltration membrane［J］. Industrial Water Treatment，2021，41（11）：84-88. doi:10.19965/j.cnki.iwt.2021-0171
3	陈启斌，陈征贤，庄荣传，等. 微絮凝/超滤组合工艺处理实际印染废水［J］. 环境污染与防治，2018，40（4）：450-454.
	CHEN Qibin， CHEN Zhengxian， ZHUANG Rongchuan，et al. Actual printing and dyeing wastewater treatment by the integrated process of microbial flocculation and ultra-filtration［J］. Environmental Pollution ＆ Control，2018，40（4）：450-454.
4	杨海洋，杜星，甘振东，等. 混凝-助凝-超滤工艺处理地表水膜污染［J］. 哈尔滨工业大学学报，2017，49（2）：13-19. doi:10.11918/j.issn.0367-6234.2017.02.003
	YANG Haiyang， DU Xing， GAN Zhendong，et al. Membrane fouling on coagulation/aid-coagulation/ultrafiltration process for drinking water treatment［J］. Journal of Harbin Institute of Technology，2017，49（2）：13-19. doi:10.11918/j.issn.0367-6234.2017.02.003
5	邱加林. 混凝-超滤组合工艺处理含油废水试验研究［J］. 山西化工，2021，41（2）：207-208. doi:10.16525/j.cnki.cn14-1109/tq.2021.02.74
	QIU Jialin. Experimental study on treatment of oily wastewater by coagulation and ultrafiltration combined process［J］. Shanxi Chemical Industry，2021，41（2）：207-208. doi:10.16525/j.cnki.cn14-1109/tq.2021.02.74
6	ŞENGÜL A B， ERSAN G， TÜFEKÇI N. Removal of intra- and extracellular microcystin by submerged ultrafiltration（UF） membrane combined with coagulation/flocculation and powdered activated carbon（PAC） adsorption［J］. Journal of Hazardous Materials，2018，343：29-35. doi:10.1016/j.jhazmat.2017.09.018
7	王旭东，石彩霞，廖正伟，等. 微絮凝对腐殖酸超滤过程膜污染的减缓特性［J］. 环境科学，2018，39（9）：4249-4256. doi:10.13227/j.hjkx.201711229
	WANG Xudong， SHI Caixia， LIAO Zhengwei，et al. Reducing membrane fouling from micro-flocculation in a humic acid ultrafiltration process［J］. Environmental Science，2018，39（9）：4249-4256. doi:10.13227/j.hjkx.201711229
8	王锦，王晓昌，何自琦. 浊度和腐殖酸对超滤膜污染过程的研究［J］. 膜科学与技术，2002，22（1）：24-28.
	WANG Jin， WANG Xiaochang， HE Ziqi. Characteristics of membrane fouling by turbid and humic substances［J］. Membrane Science and Technology，2002，22（1）：24-28.
9	LAPOINTE M， BARBEAU B. Dual starch-polyacrylamide polymer system for improved flocculation［J］. Water Research，2017，124：202-209. doi:10.1016/j.watres.2017.07.044
10	贺维鹏，郑飒，李波，等. 助凝剂投加量及pH对BF-UF工艺膜污染的影响［J］. 环境工程学报，2021，15（5）：1567-1576. doi:10.12030/j.cjee.202011116
	HE Weipeng， ZHENG Sa， LI Bo，et al. Effects of coagulant-aid dosage and solution pH on membrane fouling during ballasted flocculation and ultrafiltration process［J］. Chinese Journal of Environmental Engineering，2021，15（5）：1567-1576. doi:10.12030/j.cjee.202011116
11	贺维鹏，郑飒，吴慧英，等. 加载絮体形态对短流程超滤膜污染影响效应［J］. 中国环境科学，2021，41（3）：1155-1161. doi:10.3969/j.issn.1000-6923.2021.03.018
	HE Weipeng， ZHENG Sa， WU Huiying，et al. Effect of ballasted floc morphology on membrane fouling during shortened ultrafiltration process［J］. China Environmental Science，2021，41（3）：1155-1161. doi:10.3969/j.issn.1000-6923.2021.03.018
12	龚竹青，刘立华，郑雅杰. 聚二甲基二烯丙基氯化铵与聚合硫酸铁复合絮凝剂的制备及应用研究［J］. 环境污染治理技术与设备，2004（10）：35-39.
	GONG Zhuqing， LIU Lihua， ZHENG Yajie. Study on preparation and application of poly（dimethyldiallylammonium chloride）-polyferric sulfate composite flocculant［J］. Techniques and Equipment for Environmental Pollution Control，2004（10）：35-39.
13	CHAKRABORTI R K， ATKINSON J F， VAN BENSCHOTEN J E. Characterization of alum floc by image analysis［J］. Environmental Science & Technology，2000，34（18）：3969-3976. doi:10.1021/es990818o
14	LIU Yongwang， LI Xing， YANG Yanling，et al. Analysis of the major particle-size based foulants responsible for ultrafiltration membrane fouling in polluted raw water［J］. Desalination，2014，347：191-198. doi:10.1016/j.desal.2014.05.039
15	洪金德，丁淼. PFS盐基度与絮凝性能关系分析［J］. 华侨大学学报：自然科学版，2005，26（3）：303-305.
	HONG Jinde， DING Miao. Analysing the relation between akalinity of polymericed ferri sulfate and flocculation performance［J］. Journal of Huaqiao University（Natural Science），2005，26（3）：303-305.
16	ZHU Hongtao， WEN Xianghua， HUANG Xia. Membrane organic fouling and the effect of pre-ozonation in microfiltration of secondary effluent organic matter［J］. Journal of Membrane Science，2010，352（1/2）：213-221. doi:10.1016/j.memsci.2010.02.019
17	鄢忠森，瞿芳术，梁恒，等. 超滤膜污染以及膜前预处理技术研究进展［J］. 膜科学与技术，2014，34（4）：108-114. doi:10.3969/j.issn.1007-8924.2014.04.020
	YAN Zhongsen， QU Fangshu， LIANG Heng，et al. A review on the ultrafitration membrane pollution and pretreatment technology［J］. Membrane Science and Technology，2014，34（4）：108-114. doi:10.3969/j.issn.1007-8924.2014.04.020
18	邹瑜斌，陈昊雯，段淑璇，等. 混凝-超滤过程中絮体形态对膜污染的影响［J］. 环境工程学报，2017，11（12）：6226-6232. doi:10.12030/j.cjee.201704097
	ZOU Yubin， CHEN Haowen， DUAN Shuxuan，et al. Effect of floc morphology on membrane fouling in a coagulation-ultrafiltration process［J］. Chinese Journal of Environmental Engineering，2017，11（12）：6226-6232. doi:10.12030/j.cjee.201704097
19	王晓昌，金鹏康. 腐殖酸铝盐絮凝体的动态特性［J］. 环境科学，2002，23（4）：71-75. doi:10.3321/j.issn:0250-3301.2002.04.015
	WANG Xiaochang， JIN Pengkang. Dynamic properties of Al-humic flocs［J］. Chinese Journal of Enviromental Science，2002，23（4）：71-75. doi:10.3321/j.issn:0250-3301.2002.04.015
20	金鹏康，王晓昌. 腐殖酸混凝过程FI曲线的特征参数分析［J］. 环境科学学报，2002，22（4）：423-427. doi:10.3321/j.issn:0253-2468.2002.04.002
	JIN Pengkang， WANG Xiaochang. An analysis of characteristic parameters of FI curve for coagulation of humic acid［J］. Acta Scientiae Circumstantiae，2002，22（4）：423-427. doi:10.3321/j.issn:0253-2468.2002.04.002
21	KIMURA K， WATANABE Y， OHKUMA N. Filtration resistance and efficient cleaning methods of the membrane with fixed nitrifiers［J］. Water Research，2000，34（11）：2895-2904. doi:10.1016/s0043-1354(00)00040-3

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