摘要
介绍了生物作用所占比例的测定方法,预O3-BAC与BAC饮用水处理工艺全流程中生物作用所占比例的变化情况。预臭氧化增强了工艺单元生物作用的去除效果,使后续单元对CODMn、UV254、BDOC、NH4+-N的去除量增大,预O3-BAC工艺中生物作用去除的绝对总量大于BAC工艺;增加了工艺单元的生物量,在沉淀、煤滤、炭滤单元,平均生物量分别为BAC工艺的2.18、1.47、2.12倍。不规则活性炭PJ上生长的生物量是相对规则的柱状炭ZJ-15的2.31倍,为充分利用生物作用,宜选用不定型破碎炭。
The method to determine the ratio accounting for biological action, and the changing condition that the biological action accounts for ratio in the overall technological process ofpre-O3-BAC and BAC drinking water treatment process are introduced in this paper. It is pointed out that pre-ozona- tion strengthens the removal effect of biological action in technological units to make the follow-up units increase removal quantity of CODMn UV250, BDOC, NH4^＋- N; the absolute total removal quantity by biological action in pre-O3-BAC process is greater than in BAC process; increasing total biomass in sediment, coal filtration and carbon filtration units are 2.18, 1.47 and 2.12 times of these in BAC process respectively; the biomass growing on irregular AC PJ is 2.32 times of that on relative regular column-type carbon ZJ-I 5; in order to fully make use of biological action, unshape broken carbon should be used.
出处
《水处理技术》
CAS
CSCD
北大核心
2007年第12期30-33,76,共5页
Technology of Water Treatment
基金
北京市科委北京市饮用水安全保障关键技术和系统应用示范项目(D0605004040421)
关键词
预臭氧
活性炭
生物作用
物理吸附作用
preozonaton
biological activated carbon
biodegradation
physical adsorption
