Photolytic treatment of organic constituents and bacterial pathogens in secondary effluent of synthetic slaughterhouse wastewater

被引：49
|
作者：
Barrera, Mauricio [2 ]
Mehrvar, Mehrab [1 ]
Gilbride, Kimberley A. [3 ]
McCarthy, Lynda H. [3 ]
Laursen, Andrew E. [3 ]
Bostan, Vadim [3 ]
Pushchak, Ronald [4 ]
机构：
[1] Ryerson Univ, Dept Chem Engn, Toronto, ON M5B 2K3, Canada
[2] Ryerson Univ, Environm Appl Sci & Management Grad Program, Toronto, ON M5B 2K3, Canada
[3] Ryerson Univ, Dept Biol & Chem, Toronto, ON M5B 2K3, Canada
[4] Ryerson Univ, Sch Occupat & Publ Hlth, Toronto, ON M5B 2K3, Canada
来源：
CHEMICAL ENGINEERING RESEARCH & DESIGN | 2012年 / 90卷 / 09期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Slaughterhouse wastewater; Secondary effluent; Advanced oxidation processes; AOP; Vacuum-UV; Total organic carbon; Combined processes; ADVANCED OXIDATION PROCESSES; METRONIDAZOLE DEGRADATION; HYDROXYL RADICALS; UV/H2O2; PROCESS; REMOVAL; PEROXIDE; SINGLE; TRENDS; UV;
D O I：
10.1016/j.cherd.2011.11.018
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The reduction and degradation of total organic carbon (TOC) and bacteria from a secondary effluent of synthetic slaughterhouse wastewater using vacuum-ultraviolet (VUV) and ultraviolet-C (UV-C) processes and their combination (UV-CNUV and VUV/UV-C) were investigated. The TOC removal rates under continuous mode operation ranged from 5.5 to 6.2%. In addition, the treatment with the UV-C/H2O2 and VUV/H2O2 processes under continuous mode operation doubled the TOC removal rates 10.8 and 12.2%, respectively. The optimum molar ratio of H2O2/TOC was found to be 2.5 and 1.5 for the UV-C and VUV processes, respectively. It was observed that all photochemical processes were able to totally inactivate different strains of bacteria with concentrations up to 10(5) CFU/mL within 27.6s. Finally, a kinetic model was developed to simulate the TOC degradation from a secondary effluent of synthetic slaughterhouse wastewater. (C) 2011 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：1335 / 1350
页数：16
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