Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/67683
Title: Pretreatment by fenton oxidation of an amoxillin wastewater
Authors: Zhang, G.
Ng, W.J. 
Ji, S.
Keywords: Abatement and removal
Models
Oxidation
pH
Wastewater management
Issue Date: 2008
Citation: Zhang, G., Ng, W.J., Ji, S. (2008). Pretreatment by fenton oxidation of an amoxillin wastewater. Journal of Environmental Engineering 134 (4) : 326-330. ScholarBank@NUS Repository.
Abstract: Relatively few reported works have dealt with wastewaters arising from amoxillin manufacture. To develop a treatment process for one such wastewater, several physicochemical methods such as coagulation, ultrafiltration, and Fenton oxidation (FO), have been investigated. Among these methods, FO proved effective. Consequently the method was further investigated to identify the appropriate H2 O2 FeSO4 ratio, FeSO4 and H2 O2 concentrations, and reaction pH and temperature. In relation to the wastewater, a suitable H2 O2 FeSO4 weight ratio was 5:1 (molar ratio: 22.4:1) with H2 O2 and FeSO4 concentrations at 20 gL, 4 gL, respectively. The corresponding pH range was 2.0-4.0 while the reaction temperature was 60°C. Given these conditions, wastewater total organic carbon was reduced by 48.8-49.4%. After FO treatment, reverse osmosis (RO) effectively reduced the dissolved salt content. The contribution of FO and RO pretreatment improved the wastewater's biodegradability thus making a downstream biotreatment polishing process viable. © 2008 ASCE.
Source Title: Journal of Environmental Engineering
URI: http://scholarbank.nus.edu.sg/handle/10635/67683
ISSN: 07339372
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