Performance evaluation of polyamide nanofiltration membranes for phosphorus removal process and their stability against strong acid/alkali solution

被引:18
作者
Chai, Yen Khai [1 ]
Lam, How Chun [1 ]
Koo, Chai Hoon [1 ]
Lau, Woei Jye [2 ]
Lai, Soon Onn [3 ]
Ismail, Ahmad Fauzi [2 ]
机构
[1] Univ Tunku Abdul Rahman, Lee Kong Chian Fac Engn & Sci, Dept Civil Engn, Jalan Bandar Sg Long, Kajang 43000, Selangor, Malaysia
[2] Univ Teknol Malaysia, Adv Membrane Technol Res Ctr AMTEC, Skudai 81310, Johor, Malaysia
[3] Univ Tunku Abdul Rahman, Lee Kong Chian Fac Engn & Sci, Dept Chem Engn, Jalan Bandar Sg Long, Kajang 43000, Selangor, Malaysia
关键词
Membrane; Nanofiltration; Phosphorus removal; pH; Stability; Humic acid; SOLUTION CHEMISTRY; REVERSE-OSMOSIS; WASTE-WATER; HUMIC-ACID; RETENTION; EFFLUENTS; PHOSPHATE; NF; EFFICIENCY; REJECTION;
D O I
10.1016/j.cjche.2018.09.029
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
In this study, a quantitative performance of three commercial polyamide nanofiltration (NF) membranes (i.e., NF, NF90, and NF270) for phosphorus removal under different feed conditions was investigated. The experiments were conducted at different feed phosphorus concentrations (2.5, 5, 10, and 15 mg.L-1) and elevated pHs (pH 1.5, 5, 10, and 13.5) at a constant feed pressure of 1 MPa using a dead-end filtration cell. Membrane rejection against total phosphorus generally increased with increasing phosphorus concentration regardless of membrane type. In contrast, the permeate flux for all the membranes only decreased slightly with increasing phosphorus concentration. The results also showed that the phosphorus rejections improved while water flux remained almost unchanged with increasing feed solution pH. When the three membranes were exposed to strong pHs (pH 1.5 and 13.5) for a longer duration (up to 6 weeks), it was found that the rejection capability and water flux of the membranes remained very similar throughout the duration, except for NF membrane with marginal decrement in phosphorus rejection. Adsorption study also revealed that more phosphorus was adsorbed onto the membrane structure at alkaline conditions (pH 10 and 13.5) compared to the same membranes tested at lower pHs (pH 1.5 and 5). In conclusion, NF270 membrane outperformed NF and NF90 membranes owing to its desirable performance of water flux and phosphorus rejection particularly under strong alkali solution. The NF270 membrane achieved 14.0 Lm(-2).h(-1) and 96.5% rejection against 10 mg.L-1 phosphorus solution with a pH value of 13.5 at the applied pressure of 1 MPa. (C) 2018 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.
引用
收藏
页码:1789 / 1797
页数:9
相关论文
共 45 条
  • [1] Cleaning results of new and fouled nanofiltration membrane characterized by contact angle, updated DSPM, flux and salts rejection
    Al-Amoudi, Ahmed
    Williams, Paul
    Al-Hobaib, A. S.
    Lovitt, Robert W.
    [J]. APPLIED SURFACE SCIENCE, 2008, 254 (13) : 3983 - 3992
  • [2] Tackling colour issue of anaerobically-treated palm oil mill effluent using membrane technology
    Amat, N. A. Ali
    Tan, Y. H.
    Lau, W. J.
    Lai, G. S.
    Ong, C. S.
    Mokhtar, N. M.
    Sani, N. A. A.
    Ismail, A. F.
    Goh, P. S.
    Chong, K. C.
    Lai, S. O.
    [J]. JOURNAL OF WATER PROCESS ENGINEERING, 2015, 8 : 221 - 226
  • [3] Baker R.W., 2004, Membrane Technology and Applications
  • [4] Influence of operating conditions on the retention of phosphate in water by nanofiltration
    Ballet, Guy Tiama
    Hafiane, Amor
    Dhahbi, Mahmoud
    [J]. JOURNAL OF MEMBRANE SCIENCE, 2007, 290 (1-2) : 164 - 172
  • [5] Phosphorus removal in low alkalinity secondary effluent using alum
    Banu, R. J.
    Do, K. U.
    Yeom, I. T.
    [J]. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, 2008, 5 (01) : 93 - 98
  • [6] Effect of solution chemistry on the surface charge of polymeric reverse osmosis and nanofiltration membranes
    Childress, AE
    Elimelech, M
    [J]. JOURNAL OF MEMBRANE SCIENCE, 1996, 119 (02) : 253 - 268
  • [7] The rejection of endocrine disrupting and pharmaceutically active compounds by NF and RO membranes as a function of compound a water matrix properties
    Comerton, Anna M.
    Andrews, Robert C.
    Bagley, David M.
    Hao, Chunyan
    [J]. JOURNAL OF MEMBRANE SCIENCE, 2008, 313 (1-2) : 323 - 335
  • [8] A method for characterizing membranes during nanofiltration at extreme pH
    Dalwani, Mayur
    Benes, Nieck E.
    Bargeman, Gerrald
    Stamatialis, Dimitris
    Wessling, Matthias
    [J]. JOURNAL OF MEMBRANE SCIENCE, 2010, 363 (1-2) : 188 - 194
  • [9] Physicochemical Characterization of Solute Retention in Solvent Resistant Nanofiltration: the Effect of Solute Size, Polarity, Dipole Moment, and Solubility Parameter
    Darvishmanesh, Siavash
    Vanneste, Johan
    Tocci, Elena
    Jansen, John
    Tasseli, Franco
    Degreve, Jan
    Drioli, Enrico
    Van der Bruggen, Bart
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2011, 115 (49) : 14507 - 14517
  • [10] Nanofiltration process efficiency in water desalination
    Diawara, Courfia K.
    [J]. SEPARATION AND PURIFICATION REVIEWS, 2008, 37 (03) : 303 - 325