摘要
针对生物活性炭技术应用过程中所存在的水质安全性问题,提出了臭氧氧化前投加微量高猛酸盐氧化的处理方法,并与臭氧活性炭技术进行了对比研究。研究结果表明,投加高锰酸盐有利于臭氧活性炭技术的运行,提高了对颗粒物的去除;总有机炭的去除率可以提高10%以上,而UV254的去除率可以提高20%以上;可以起到控制细菌和藻类的作用,复合氧化后的活性炭出水细菌数明显减少,藻类的去除率可以提高15%以上;提高了生物活性炭中下层的生物量,拓展了生物活性炭的处理空间,从而提高了生物活性炭对污染物的处理能力。同时,投加高锰酸盐降低了生物活性,但对处理效果没有产生不利影响。
The method of adding permanganate before ozonation was developed to deal with the water quality problems in the O3-BAC process, and was investigated on the control of O3-BAC process. The resuits showed that the dosing of permanganate is favorable to the perfrmance of O3-BAC process. The particles removal can be improved. The removal of algae,TOC and UV254 can be improved by 15%,10% and 20 %,respectively. Combined oxidation improved the biomass at middle and lower layer of the BAC filter,And it had no adverse effect on the process's performance although the microbial activity had been decreased.
出处
《净水技术》
CAS
2005年第4期5-7,42,共4页
Water Purification Technology
基金
国家高技术研究发展计划(863计划)课题:南方地区安全饮用水保障技术(2002AA601120)