Advanced oxidation process using hydrogen peroxide/microwave system for solubilization of phosphate

被引:46
作者
Liao, PH [1 ]
Wong, WT [1 ]
Lo, KV [1 ]
机构
[1] Univ British Columbia, Dept Civil Engn, Vancouver, BC V6T 1Z4, Canada
来源
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING | 2005年 / 40卷 / 09期
基金
加拿大自然科学与工程研究理事会;
关键词
advanced oxidation process; hydrogen peroxide; microwave heating; phosphorous release; sludge;
D O I
10.1081/ESE-200068038
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
An advanced oxidation process (AOP) combining hydrogen peroxide and microwave heating was used for the solubilization of phosphate from secondary municipal sludge from an enhanced biological phosphorus removal process. The microwave irradiation is used as a generator agent of oxidizing radicals as well as a heating source in the process. This AOP process could facilitate the release of a large amount of the sludge-bound phosphorus from the sewage sludge. More than 84 % of the total phosphorous could be released at a microwave heating time of 5 min at 170 degrees C. This innovative process has the potential of being applied to simple sludge treatment processes in domestic wastewater treatment and to the recovery of phosphorus from the wastewater.
引用
收藏
页码:1753 / 1761
页数:9
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