Photoremediation of natural leachate from a municipal solid waste site in a pilot-scale bubble column reactor

被引：6
|
作者：
Qazaq, A. S. [1 ]
Hudaya, T. [1 ]
Lee, I. A. L. [1 ]
Sulidis, A. [1 ]
Adesina, A. A. [1 ]
机构：
[1] Univ New S Wales, Sch Chem Engn & Sci, Reactor Engn & Technol Grp, Sydney, NSW 2052, Australia
来源：
CATALYSIS COMMUNICATIONS | 2007年 / 8卷 / 12期
基金：
澳大利亚研究理事会;
关键词：
photoremediation; titania; bubble column reactor; total organic carbon; municipal solid waste leachate;
D O I：
10.1016/j.catcom.2007.03.005
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
An 18-litre pilot-scale bubble column photoreactor has been used to carry out the mineralisation of a municipal solid waste dirty brown leachate. Rate data collected at 300 K and atmospheric pressure with titania particles suspended in upward flowing oxidising air through a stationary liquid phase suggested that the mineralisation of humic compounds was accompanied by a parallel hydrolytic photodecomposition of nitrogenous matter to NH4+ ions. The total organic carbon (TOC) reduction rate followed a Langmuir-Hinshel-wood kinetics, while NH4+ ions production is competitively inhibited at high TOC concentration (>35 mM). Photoremediation was also 4 attended by significant (50-70%) decolourisation. The treated leachate may be recycled for agricultural use. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：1917 / 1922
页数：6
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