摘要
为了进一步探讨水合二氧化锰对于水中污染物的去除效能,采用杯罐混凝试验,以腐殖酸配制的水样为研究对象,以CODMn、TOC、UV254为指标,考察了高锰酸钾还原法制备的水合二氧化锰对腐殖酸的去除效能,并对水合二氧化锰去除有机物的机制进行了初步探讨。结果表明:当水合二氧化锰投加量为6mg.L-1时,CODMn的去除率为15.25%,TOC的去除率为24.07%,UV254的去除率为38.0%。由此得出结论:与传统混凝剂相比,该水合二氧化锰表现出良好的去除腐殖酸及UV254的效能。
In order to further discover the removing pollutant efficiency in water of the hydrous manganese dioxide, the efficiency of removal humic acid of hydrous manganese dioxide which was prepared by reduction of potassium permanganate was studied by jar coagulation tests with the CODmn, TOC and UV254 as the index. The possible mechanism of removal organic matter of hydrous manganese dioxide was also investigated. The results showed that the removal rate of CODMn, TOC and UV254 were 15.25 %, 24.07% and 38.0% respectively when the dosage of hydrous manganese dioxide was 6mg·L^-1. It concluded that this kind of hydrous manganese dioxide had better effect of removal humie acid and UV254 compared with traditional coagulants.
出处
《化学与粘合》
CAS
2008年第2期9-11,共3页
Chemistry and Adhesion
基金
国家自然科学基金项目(编号:50678007)
黑龙江省自然科学基金项目(编号:E200510)
关键词
水合二氧化锰
混凝
腐殖酸
Hydrous manganese dioxide
coagulation
humic acid
