Reversible and irreversible membrane fouling in hollow-fiber UF membranes filtering surface water: effects of ozone/powdered activated carbon treatment
文献类型： 外文期刊
作者： Huang, Weiwei 1 ; Zhu, Yuanhong 3 ; Wang, Lin 4 ; Lv, Weiguang 1 ; Dong, Bingzhi 2 ; Zhou, Wenzong 1 ;
作者机构： 1.Shanghai Acad Agr Sci, Ecoenvironm Protect Res Inst, Shanghai 201403, Peoples R China
2.Tongji Univ, Sch Environm Sci & Engn, Shanghai 200092, Peoples R China
3.Shanghai Qingpu Modern Agr Pk, Shanghai 201403, Peoples R China
4.Shandong Jianzhu Univ, Sch Municipal & Environm Engn, Jinan 250101, Peoples R China
期刊名称：RSC ADVANCES （ 影响因子：3.119； 五年影响因子：3.098 ）
ISSN：
年卷期： 2021 年 11 卷 17 期
页码：
收录情况： SCI
摘要： This study investigated the reversible and irreversible membrane fouling behavior of micro polluted water by ozone/powdered activated carbon (PAC)/ultrafiltration treatment. The results indicated that PAC mainly adsorbed low-molecular weight organics and reduced the irreversible fouling resistance in ultrafiltration, while there existed a threshold PAC dosage for total and reversible fouling resistance alleviation. Ozone at low doses exerted little effect on membrane fouling alleviation, while higher doses controlled total and reversible fouling by reducing macromolecular biopolymers and humic-like substances. Combined ozone and PAC pretreatment had greater effects on both reversible and irreversible fouling reduction than individual PAC and ozone treatment, demonstrating synergistic effects in the reduction of organic content in the feed water, including macromolecular biopolymers, humic-like, low-molecular weight neutral and building blocks. Backwashing and chemical cleaning analysis revealed that biopolymers and humic-like substances were the main organics that caused hydraulic reversible fouling, whereas low-molecular organics of building blocks and neutral, as well as humic-like substances were the main components that caused hydraulic irreversible fouling. Combined ozone and PAC treatment not only improved the backwashing efficiency but also reduced the membrane fouling during backwashing, as well as reversible and irreversible fouling. The cake layer formation and standard pore blocking were the major mechanisms for ultrafiltration membrane fouling, of which standard pore blocking exerted more important effects in the membrane fouling formation and alleviation by individual and combined PAC and ozone treatment.
- 相关文献
作者其他论文 更多>>
-
Effects of long-term ammonia and heat stress on growth performance, antioxidant and immunity of wild and breeding juvenile rice field eel (Monopterus albus)
作者：Li, Muyan;Huang, Weiwei;Zhao, Yifan;Yuan, Quan;Yang, Hang;Lv, Weiwei;Zhou, Wenzong;Li, Muyan;Zhao, Yifan;Huang, Weiwei;Yuan, Quan;Yang, Hang;Lv, Weiwei;Zhou, Wenzong
关键词：Monopterus albus; ammonia stress; heat stress; growth; antioxidant; immunity
-
Cement glands as a second sexual characteristic can help to evaluate the ovarian development and reproductive spawning period of the female crayfish Procambarus clarkii
作者：Li, Jinghao;Qian, Chen;Cheng, Yongxu;Li, Jiayao;Li, Jinghao;Qian, Chen;Cheng, Yongxu;Li, Jiayao;Li, Jinghao;Qian, Chen;Cheng, Yongxu;Li, Jiayao;Zhou, Wenzong;Xi, Yewen
关键词：Cement glands; Red swamp crayfish; Secondary sexual characteristic; Mating behavior; Gonadal index; Proteome profiles
-
Effects on growth performance and immunity of Monopterus albus after high temperature stress
作者：Mao, Yifan;Li, Mingyou;Lv, Weiwei;Huang, Weiwei;Yuan, Quan;Yang, Hang;Zhou, Wenzong
关键词：Monopterus albus; high temperature stress; immunity; liver; intestinal microorganisms
-
Effects of dietary melatonin supplementation on growth performance and intestinal health of rice field eel (Monopterus albus)
作者：Lv, Weiwei;Huang, Weiwei;Yuan, Quan;Yang, Hang;Zhou, Wenzong;Li, Muyan;Mao, Yifan;Li, Mingyou;Zhou, Qiubai
关键词：Melatonin; Growth; Intestinal health; Monopterus albus
-
Effects of four types of natural bait on water quality, feeding, growth, and antioxidant enzyme activity of Monopterus albus in a recirculating aquaculture system
作者：Yuan, Quan;Yang, Hang;Lv, Weiwei;Huang, Weiwei;Zhou, Wenzong;Yuan, Quan;Zhou, Wenzong;Wu, Chengcheng;Zhang, Qinghua
关键词：Asian swamp eel; Tenebrio molitor; earthworm; housefly maggot; recirculating aquaculture system
-
Long-term bioorganic and organic fertilization improved soil quality and multifunctionality under continuous cropping in watermelon
作者：Zheng, Xianqing;Lv, Weiguang;Zhang, Yue;Zhang, Haiyun;Zhang, Hanlin;Wei, Liang;Zhang, Haoqing;Zhu, Zhenke;Ge, Tida;Zhang, Wenju
关键词：Continuous cropping; Ecosystem multifunctionality; Long-term fertilization; Resistance; Sensitivity; Soil health
-
Potential nervous threat of nanoplastics to Monopterus albus: Implications from a metabolomics study
作者：Yao, Chunxia;Liu, Chengbin;Hong, Shuang;Zhou, Jiaxin;Lv, Weiwei;Zhou, Wenzong;Yao, Chunxia;Liu, Chengbin;Zhou, Jiaxin;Hong, Shuang;Gao, Zhaoliang;Li, Yiming
关键词：Polystyrene nanoplastics; Metabolomics; M. albus; Liver; Neurotoxicity
