Effective natural organic matter removal in pond water by carbon nanotube membrane with flocculation/adsorption

被引：3
作者：
Lee, Jieun [1 ]
Vigneswaran, Saravanamuth [2 ]
Zhang, Yongshun [1 ]
Reddy, Ramireddy S. P. Raj [1 ]
Liu, Zongwen [1 ]
机构：
[1] Univ Sydney, Sch Chem & Biomol Engn, Sydney, NSW 2006, Australia
[2] UTS, Fac Engn & IT, POB 123, Broadway, NSW 2007, Australia
来源：
WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY | 2017年 / 17卷 / 04期
关键词：
adsorption; carbon nanotube membrane; flocculation; membrane hybrid system; natural organic matter removal; ultrafiltration membrane; ULTRAFILTRATION PROCESS; SURFACE-WATER; COAGULATION; NOM; PRETREATMENT; CHLORIDE; PERFORMANCE; ADSORPTION; SYSTEM; IMPACT;
D O I：
10.2166/ws.2017.005
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A carbon nanotube (CNT) ultrafiltration (UF) membrane was applied to natural organic matter (NOM) removal in pond water treatment. The source water was pretreated by flocculation and/or adsorption prior to the UF process to alleviate permeate flux decline and improve NOM removal efficiency. The performance of a commercial polyethersulfone (PES) UF membrane was compared to evaluate that of the CNT membrane. The CNTmembrane outperformed the PES-UF membrane. The permeate flux, total organic carbon and humic acid (HA) removal rate of the CNT membrane was observed to be 230 LMH/ bar, 60%, and 80% when 30mg/L poly aluminium chloride (PACI) flocculation was applied. This highlights that the permeate flux was three times higher with slightly higher rejection efficiency than the PES-UF membrane. In particular, severe permeate flux decline was completely overcome by the CNT membrane with 30mg/L PACI coagulation. For powder activated carbon (PAC) adsorption, even though there was a severe permeate flux decline in the CNT membrane, almost complete HA removal (98%) was achieved when 0.5 g/L PAC adsorption was coupled. Based on the superior performance of the CNT membrane with pretreatment, the CNT membrane is suggested to be a robust system for a high concentration of organic matter pond water treatment without membrane flux decline.
引用
收藏
页码：1080 / 1087
页数：8
相关论文
共 21 条
[1]   Development of a control system for in-line coagulation in an ultrafiltration process [J].
Blankert, Bastiaan ;
Betlem, Ben H. L. ;
Roffel, Brian .
JOURNAL OF MEMBRANE SCIENCE, 2007, 301 (1-2) :39-45
[2]   The impact of pH on floc structure characteristic of polyferric chloride in a low DOC and high alkalinity surface water treatment [J].
Cao, Baichuan ;
Gao, Baoyu ;
Liu, Xin ;
Wang, Mengmeng ;
Yang, Zhonglian ;
Yue, Qinyan .
WATER RESEARCH, 2011, 45 (18) :6181-6188
[3]   Coagulation by hydrolysing metal salts [J].
Duan, JM ;
Gregory, J .
ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2003, 100 :475-502
[4]   Adsorption of humic acid by powdered activated carbon in saline water conditions [J].
Duan, JM ;
Wilson, F ;
Graham, N ;
Tay, JH .
DESALINATION, 2003, 151 (01) :53-66
[5]  
JACANGELO JG, 1995, J AM WATER WORKS ASS, V87, P64
[6]   Removal of natural organic matter from potential drinking water sources by combined coagulation and adsorption using carbon nanomaterials [J].
Joseph, Lesley ;
Flora, Joseph R. V. ;
Park, Yong-Gyun ;
Badawy, Mohammed ;
Saleh, Hazem ;
Yoon, Yeomin .
SEPARATION AND PURIFICATION TECHNOLOGY, 2012, 95 :64-72
[7]   Effects of membrane material and pretreatment coagulation on membrane fouling: fouling mechanism and NOM removal [J].
Jung, Chul-Woo ;
Son, Hee-Jong ;
Kang, Lim-Seok .
DESALINATION, 2006, 197 (1-3) :154-164
[8]   Impact of pre-coagulation on ultrafiltration process performance [J].
Kabsch-Korbutowicz, Malgorzata .
DESALINATION, 2006, 194 (1-3) :232-238
[9]   Natural organic matter (NOM) fouling of ultrafiltration membranes: fractionation of NOM in surface water and characterisation by LC-OCD [J].
Kennedy, MD ;
Chun, HK ;
Yangali, VAQ ;
Heijman, BGJ ;
Schippers, JC .
DESALINATION, 2005, 178 (1-3) :73-83
[10]   Progress and challenges of carbon nanotube membrane in water treatment [J].
Lee, Jieun ;
Jeong, Sanghyun ;
Liu, Zongwen .
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY, 2016, 46 (11-12) :999-1046
123