过氧化钙在城镇黑臭水体修复中的作用.pdf

化工进
展
CHEMICAL IDUSTRY AND ENGINEERING PROGRESS
2016年第35卷增刊2
综述与专论
过氧化钙在城镇黑臭水体修复中的作用
李亮2,武成辉”,陈涛,林翰志”,晏波',肖贤明
(中国科学院广州地球化学研究所有机国家重点实验室和广东省环境资源利用
与保护重点实验室,バ东广州510640:2中国科学院大学,北京100049)
摘要:我国城镇水体污染严重,本文根据城镇黑臭水体污染与生态修复治理技术现状、分析得出水体缺氧是导
致城镇水体黑奥污染的主要原因以及复氧措施在治理黑臭水体时的重要性,介绍了水体原位复氧具有对水体扰
动小、修复效果明显和不产生二次污染等优点,但常规复氧措施存在工程规模大、设备运行昂贵和后期仪器维
护贵等问题。结合Ca()2在黑臭水体原位治理过程的高效释氧、强化微生物活性及释放羟基自由基等特性,简述
了CaO)2对黑臭水体中有机物、重金属、氮磷营养元素及硫化物等污染物的去除机理与修复效果;通过归纳
CaO2在黑臭水体修复过程中的不足,建议在CaO2对污染物的降解机理和缓释型CaO2复合释氧剂等方面应加强
研究;指出缓释型CaO)2复合释氧剂在城镇黑臭水体生态修复治理中具有重要实际意义。
关键词:黑臭水体:过氧化钙;需氧;原位修复
中图分类号:X522
文献标志码:A
文章编号:1000-6613(2016)s2-0310-07
DOl:10.16085/J.issn.1000-6613.2016.s2.061
Effect of calcium peroxide on the restoration of black and odorous water in towns
II Liang WU Chenghui, CHEN Tao, IIN Hanshi=, YAN Bo, XIAO Xianming
(State Key Laboratory of Organic Geochemistry, Guangdong Key I,aboratory of Environmental Protection and
Resources [tilization, Guangzhou Institute of (eochemistry, Chinese Academy of Sciences, Gruangzhou 10610
Gruangdong, China; University of Chinese Academy of Sciences, Beijing 100049, China)
Abstract: Based on the current situation about black and odorous water and the technology of
ecological restoration in towns of our country. The primary cause of black and odorous waste
water is hypoxia status in water and the important of reoxygenation measures in repairing black
and odorous water are obtained. The advantages of in-situ remediation are introduced, such as
little disturbance, result is obvious and does not have secondary pollution in water, but the
weakness about needing a large scale project, high price and cost of daily operating and maintain
of conventional reoxygenation measures are shown. The cffect of Cao, on releasing oxygen
efficiently, intensifying the microbial activitily and releasing hydroxyl radicals in restoring the
black and odorous water. The removal mechanism and the remediation effect of Cao, on organic
matters, heavy metals, nitrogen and phosphorus nutrition elements and sulfide in black and
odorous water are illustrated. The disadvantage of the black and odorous water restored by Cao
ere summared. The mechanism of degradation to pollutants by Cao2, sustained-release
compound oxygen release agent are suggested to be more researched. The importance o
sustained-release of Cao in practical significance is proposed
Key words: black and odorous waste water; calcium peroxide; aerobic; in-situ remediation
收稿日期:2016-06-27;修改稿日期:2016-07-28
第一作者:李亮(190-),男,硕士研究生。联系人:晏波,博
基金项目:心州市科学(技术)研究专项重点项日(2015061928328)、,研究方向为水污染治理与资源回收。 E-mail yanbo2007a
东省科技计划(2014B090901040,2014B030301060)及?东省省
级环保专项頭掘粵財工2014178号)
gig. ac, cn