共查询到19条相似文献,搜索用时 125 毫秒
1.
2.
采用高铁酸钾处理多晶硅废水,考察了初始p H、高铁酸钾投加量和反应时间对污染物去除效果的影响。结果表明,高铁酸钾通过氧化和絮凝作用去除污染物。初始p H为4时,高铁酸盐对COD和浊度的去除率最高,初始p H在5以下时高铁酸盐除F-效果好;初始p H为4、最佳投加量为500 mg/L情况下,高铁酸盐对COD的去除率达到43.4%。纳滤分析表明高铁酸盐氧化能使聚乙二醇断链降聚,改善了多晶硅废水的可生化性。 相似文献
3.
4.
5.
6.
7.
8.
光催化净化空气研究进展 总被引:1,自引:0,他引:1
光催化氧化技术是一种新兴的气相污染物净化技术。综述了二氧化钛光催化氧化技术处理气相污染物的氧化机理,分析了气相光催化氧化反应器设计及该技术在降解空气中有毒有害气体、病毒、细菌和微生物等许多领域的应用现状和前景。 相似文献
9.
10.
11.
12.
高铁酸钾在水处理方面的应用 总被引:1,自引:0,他引:1
介绍了近年来强氧化剂高铁酸钾在水处理中的应用成果及现状。高铁酸钾可有效地去除水中微生物、无机以及有机污染物、水中重金属和除臭的功效,指出高铁酸钾与其他水处理药剂的独特之处。分析了高铁酸钾在生活用水、工业废水处理领域的应用情况,为实现其工业化生产和应用提供参考。 相似文献
13.
14.
15.
高铁酸钾是一种新型绿色高效的水处理剂,为了探索经济、高效的制备高铁酸钾的工艺,以次氯酸钙为主要原料通过氧化反应制备高铁酸钾,考察反应时间、反应温度、次氯酸钙用量、重结晶温度和碱度等因素对产率的影响,并采用红外光谱对产物高铁酸钾进行表征。实验结果如下:当反应温度为25 ℃,次氯酸钙的用量为理论值的1.2倍,反应时间为40 min,在冰水浴中重结晶时,反应产率可达75%以上;红外光谱(FT-IR) 对产物的结构表征证明合成产物为高铁酸钾。结果表明以次氯酸钙代替次氯酸钠制备高铁酸钾的工艺是可行的。 相似文献
16.
17.
18.
19.
The use of potassium ferrate(VI) as an alternative water remediation chemical has been studied and is reported in this paper. The water remediation performance of potassium ferrate(VI) was evaluated in comparison with sodium hypochlorite, ferric sulphate (FS) and aluminium sulphate (AS). The effects of the dosages of ferrate(VI), hypochlorite and FS/AS and solution pH were investigated. A model water with Escherichia coli (E. coli) number concentration of 3.2×108/100 ml was used to examine the comparative disinfection performance and a real sewage sample was used to assess the comparative coagulation performance. The study demonstrated that the potassium ferrate(VI) performed superior to sodium hypochlorite in the inactivation of E. coli; less ferrate(VI) dose and contact time were required to achieve the same E. coli killing efficiency, the disinfection performance was less affected by the solution pH, and the disinfection rate of the ferrate(VI) was faster than that with sodium hypochlorite. In sewage treatment, ferrate(VI) performed superiorly as a oxidant and a coagulant; it can reduce 30% more COD, and kill 3 log more bacteria in comparison with AS and FS at a similar or even smaller dose. 相似文献