镇江市金山水厂炭滤池生物性能的研究

发布时间：2018-05-29 10:57

本文选题：O_-BAC工艺 + 活性炭　；参考：《中国给水排水》2017年17期

【摘要】：分析了金山水厂臭氧-炭滤池运行过程中活性炭的吸附性能和生物性能的变化、炭滤池生物量的分布特征、反冲洗对炭滤池生物量的影响以及炭滤池出水的生物安全性情况。结果表明,炭滤池开始运行时,以吸附作用为主,去除COD_(Mn)的效果显著,去除率达60.33%,对氨氮无去除效果;随着活性炭逐渐吸附饱和,生物作用逐步形成,去除氨氮的效果提升,炭滤水几乎不含氨氮,此时对COD_(Mn)的去除以生物作用为主,去除率为37%;运行初期炭滤池生物量较少,运行至241~270 d时,生物量达到了最大值,维持在110~120 nmol P/g炭的范围内;炭滤池中活性炭表层的生物量最多,且随着炭池深度的增加呈递减趋势;反冲洗次数增加会抑制微生物的生长,炭池运行初期可以延长反冲洗周期以促进微生物的生长,从而形成稳定的生物膜,也可缩短反冲洗周期来抑制微生物的生长。
[Abstract]:The adsorption and biological properties of activated carbon during the operation of ozone carbon filter in Jinshan Waterworks were analyzed. The distribution characteristics of biomass of carbon filter, the effect of backwashing on biomass of carbon filter and the biological safety of effluent from carbon filter were analyzed. The results showed that when the carbon filter began to operate, the adsorption was the main action, and the removal rate of COD was significant, the removal rate was 60.33, and there was no removal effect of ammonia nitrogen, and with the adsorption saturation of activated carbon, the biological action gradually formed, and the effect of ammonia nitrogen removal was improved. Carbon filter water almost contains no ammonia nitrogen. At this time, the removal rate of CODX mn is mainly biological, the removal rate is 37%, the biomass of carbon filter is less at the initial stage of operation, and the biomass reaches the maximum value at 240 ~ (-1) ~ 270 d, which is maintained in the range of 110 ~ 120 nmol / g carbon. The biomass of surface layer of activated carbon was the most in carbon filter and decreased with the increase of depth of carbon filter, the growth of microorganism was inhibited by the increase of backwashing times, and the cycle of backwashing could be prolonged in the initial stage of operation of carbon pond to promote the growth of microorganism. Thus a stable biofilm can be formed and the backwashing cycle can be shortened to inhibit the growth of microorganisms.
【作者单位】：镇江市自来水公司;
【分类号】：TU991.2

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