Treatment of skim latex serum using gas sparged ultrafiltration

Harunsyah, - and Sulaiman, Nik Meriam Nik and Aroua, Mohamed Kheireddine (2005) Treatment of skim latex serum using gas sparged ultrafiltration. Developments in Chemical Engineering and Mineral Processing, 13 (5-6). pp. 667-674. ISSN 0969-1855, DOI

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The major pollutants from a natural rubber processing factory have high organic content and emit an offensive smell due to the biodegradation of the organic matter. In latex concentrate factories, the main sources of effluent are the skim latex serum and washings from all process equipment. This paper presents an application of membrane technology that involves gas sparging for the treatment of skim latex serum. A semi-pilot-scale system using a PVDF vertical tubular membrane (MWCO 100,000) was installed as the experimental setup. Nitrogen gas was bubbled vertically upwards at flowrates ranging from 300 to 500 ml/min. Results obtained thus far show that gas sparging has increased the permeate flux between 1.37 and 146.34 compared to non-gas sparged conditions. In terms of permeate quality, the reductions achieved for suspended solids, total solids, COD, BOD, total nitrogen and ammoniacal nitrogen were 83, 95, 67, 77, 51, 74, respectively, for the gas-sparged condition. Under non gas-sparging conditions, reductions achieved for suspended solids, total solids, COD, BOD, total nitrogen and ammoniacal nitrogen were 92, 96, 67, 72, 60, 75, respectively.

Item Type: Article
Additional Information: Export Date: 21 April 2013 Source: Scopus CODEN: DCEPE Language of Original Document: English Correspondence Address: Aroua, M.K.; Department of Chemical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; email: References: (1990) List of Latex Concentrate and SMR Factories in Malaysia, , Malaysia; (2000) Technology Digest, 1 (2000). , Malaysia; (2000) Characterisation of Sludge and Effluent from Latex Products Manufacture, , Malaysia; Cheryan, M., (1998) Ultrafiltration and Microfiltration Handbook, , Technomic Publishing Company, USA; Zeman, L.J., Zydney, A.L., (1996) Microfiltration and Ultrafiltration: Principles and Applications, , Marcel Dekker, New York; Cui, Z., Wright, K., Flux enhancements with gas sparging in downwards crossflow ultrafiltration: Performance and mechanism (1996) J. Membrane Sci., 117, pp. 109-116; Cui, Z., Wright, K., Gas-liquid two-phase crossflow ultrafiltration of BSA and dextran solutions (1994) J. Membrane Sci., 90, pp. 183-189; Um, M.J., Chung-Hak Lee, S.H., Chun, K.Y., Kim, J.J., Flux enhancement with gas injection in crossflow ultrafiltration of oily wastewater (2001) Water Research, 35, pp. 4095-4101; (1998) Standard Methods for the Examination of Water and Wastewater, 19 th Edition, , Washington DC, USA; (1997) Water Analysis Handbook. 3rd Edition, , Colorado, USA
Uncontrolled Keywords: Crossflow ultrafiltration; Gas sparging; Skim latex serum; Biodegradation; Environmental; Biological membranes; Bubble formation; Installation; Nitrogen; Process engineering; Reduction; Ultrafiltration; Rubber.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 17 Jul 2013 07:50
Last Modified: 17 Dec 2020 00:46

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