摘要
我国城镇水体黑臭现象普遍,经过研究分析得出缺氧导致了水体变臭,硫化物存在导致了水体变黑。研究者通过原位修复方法有针对性地处理黑臭水体底泥,本文分析了过氧化钙、硝酸钙、氢氧化钙和过氧化氢4种药剂的修复作用,过氧化钙的强氧化性可以分解降解有机污染物,且可强化硝化反应。硝酸钙表现出更多优势,可降解氨氮、硫化物、可溶性磷、重金属及生物毒性,可有效改善黑臭水体底泥形状。氢氧化钙与过氧化氢修复效果弱于硝酸钙。
Black and odorous phenomenon is widespread in urban,it is concluded that anoxia led to odor,and sulfide led to black in water.The remediation effects of calcium peroxide,calcium nitrate,calcium hydroxide and hydrogen peroxide were analyzed by means of in-situ remediation,the strong oxidation of calcium peroxide could decompose and degrade organic pollutants,and the nitrification reaction could be enhanced.Calcium nitrate showed more advantages,it can degrade ammonia nitrogen,sulfide,soluble phosphorus,heavy metals and biological toxicity,which can effectively improve the shape of black and odorous water sediment.Calcium hydroxide and hydrogen peroxide remediation effect was weaker than calcium nitrate.
作者
牛美青
苏玉更
乔永波
武仁超
NIU Mei-qing;SU Yu-geng;QIAO Yong-bo;WU Ren-chao(Elion Shoujian Ecological Technology Co.,Ltd.,Beijing 100600;Elione Environmental Protection Co.,Ltd.,Beijing 100600;Beijing Shangshui Qingyuan Water Treatment Technology Co.,Ltd.,Beijing 100083,China)
出处
《广州化工》
CAS
2019年第24期48-49,52,共3页
GuangZhou Chemical Industry
关键词
过氧化钙
硝酸钙
氢氧化钙
过氧化氢
原位修复
calcium peroxide
calcium nitrate
calcium hydroxide
hydrogen peroxide
in-situ remediation