A Pilot-Plant Test of a Membrane Bioreactor with a Novel Membrane Made from Chlorinated Poly (Vinyl Chloride) (CPVC) and Hydroxy-Propyl Cellulose
DOI:
https://doi.org/10.6000/1929-6037.2015.04.02.5Keywords:
MBR, chlorinated poly(vinyl chloride), hydroxy-propyl cellulose, fouling, hydrophilicity.Abstract
A pilot-plant test that can treat an amount of 30 ton per day of wastewater is performed. The purpose of this test is to prove the usefulness and applicability of newly developed microfiltration membranes made from chlorinated poly (vinyl chloride) and polyester nonwoven. Here, the hydrophilicity of membranes is important and hydroxyl-propyl cellulose is used to mitigate their hydrophobicity. The membrane consists of the novel structure in which small particles made from hydroxyl-propyl cellulose gel are homogeneously dispersed and attached on the surface of micro fibrils in the structure. The result of the pilot-plant test shows that the newly developed membrane has anti-fouling properties better than that of a conventional membrane made from chlorinated poly (vinyl chloride) by another company. It still shows high hydrophilicity after the use of one year, while the conventional one loses such properties. Saving electricity in producing water is one of important issues in developing membrane bioreactor systems and the case in use of newly-developed membranes is revealed to need 2.0 kWh of electricity to produce 1 m3 of filtered water. This amount is fairly good and reasonable when the pilot-plant test is considered to belong to a medium-size facility.References
Higashi M, Morita J, Shimada T, Kitagawa T. Newly-developed Long-term-hydrophilic Flat-sheet Type Micro Filtration Membrane Made with Chlorinated Poly (Vinyl Chloride) (CPVC). in submission
Werbowyj R, Gray D. Ordered Phase Formation in Concentrated Hydroxypropylcellulose Solutions. Macromolecules 1980; 13: 69-73. http://dx.doi.org/10.1021/ma60073a014 DOI: https://doi.org/10.1021/ma60073a014
Judd S. The MBR book, second edition. Elsevier 2011
Nakahara T. MBR Technology, and Hollow Fiber Membrane Products. Membrane 2012; 37: 102-105. http://dx.doi.org/10.5360/membrane.37.102 DOI: https://doi.org/10.5360/membrane.37.102
Xu Z, Qusay F. Polyethersulfone (PES) hollow fiber ultrafiltration membranes prepared by PES/non-slovent/NMP solution. J Membr Sci 2004; 233: 101-111. http://dx.doi.org/10.1016/j.memsci.2004.01.005 DOI: https://doi.org/10.1016/j.memsci.2004.01.005
Sik D, Kang J, Lee Y. The influence of membrane surface properties on fouling in a membrane bioreactor for wastewater treatment. Sep Sci Techno 2004; 39: 833-854. DOI: https://doi.org/10.1081/SS-120028449
Kang J, Kim K, Lee Y. Preparation of PVP immobilized microporous chlorinated polyvinyl chloride membranes on fabric and their hydraulic permeation behavior. J Memb Sci 2003; 214: 311-321. http://dx.doi.org/10.1016/S0376-7388(02)00597-5 DOI: https://doi.org/10.1016/S0376-7388(02)00597-5
Kang J, Kim K, Lee Y. Preparation of microporous chlorinated poly(vinyl chloride) membrane in fabric and the characterization of their pore sizes and pore-size distrubutions. J Appl Polym Sci 2002; 86: 1195-1202. http://dx.doi.org/10.1002/app.11063 DOI: https://doi.org/10.1002/app.11063
Kang J, Lee S, Hu H, Shim J, Lee Y. Preparation of chlorinated poly(vinyl chloride)-g-poly(N-vinyl-2-pyrrolidinone) membranes and their water permeation properties. J Appl Poly Sci 2003; 88: 3188-3195. http://dx.doi.org/10.1002/app.12148 DOI: https://doi.org/10.1002/app.12148
Uesaka T. Membrane Separation: MBR. Kagaku Kogaku 2009; 73: 79-82.
Witte P, Dijkstra P, Berg, J, Feijen, J. Phase separation processes in polymer solutions in relation to membrane formation. J Membr Sci 1996; 117: 1-31. http://dx.doi.org/10.1016/0376-7388(96)00088-9 DOI: https://doi.org/10.1016/0376-7388(96)00088-9
Guglielmi G, Chiarani D, Saroj D, Andreottola G. Impact of chemical cleaning and air-sparging on the critical and sustainable flux in a flat sheet membrane bioreactor for municipal wastewater treatment. Water Sci Techno 2008; 57: 1973-1879. http://dx.doi.org/10.2166/wst.2008.126 DOI: https://doi.org/10.2166/wst.2008.126
Nishimori K, Masutani H, Uejima T, Nagano M, Livingston D, Izumi K, Technical innovation of KUBOTA submerged membrane unit. Proceed Wat Envir Feder 2005; 558-581. DOI: https://doi.org/10.2175/193864705783977439
Nakagawa Y. Kubota MBR system for medium-size use. Industrial Machinery 2012; 5: 6-8.
Krzeminski P, Graaf H, Lier, J. Specific energy consumption of membrane bioreactor (MBR) for sewage treatment. Water Sci Techno 2012; 65: 380-392. http://dx.doi.org/10.2166/wst.2012.861 DOI: https://doi.org/10.2166/wst.2012.861
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