MBBR和陶粒生物滤池预处理受污染黄河源水研究

Pretreatment of Polluted Yellow River Source Water with Moving-bed Biofilm Reactor and Ceramsite Biofilter

采用移动床生物膜反应器(MBBR)与陶粒生物滤池(BF)预处理受污染黄河源水。结果显示,MBBR和BF均能有效去除水中的天然有机物(NOM)、藻类和藻毒素等污染物,并有效降低了消毒副产物生成势;MBBR和BF对CODMn和TOC的去除效果相当,但就不同性质的有机物而言,易生物降解的小分子有机物更容易被去除;BF对三氯甲烷前体物的去除效果高于MBBR,对藻类的去除效果则相近;BF与MBBR均表现出较好的去除微囊藻毒素的能力,去除率分别为56%和63%。MBBR和BF作为生物预处理工艺,能较好地去除常规工艺难以去除的有机物,可保障供水水质安全。

The pretreatment of polluted Yellow River source water was carried out using movingbed biofilm reactor （MBBR） and ceramsite biofiher （BF）. The results show that MBBR and BF can effectively remove natural organic matters （NOM）, algae, algae toxins and other pollutants in water. They can also reduce the formation potential of disinfection by-products. MBBR and BF have the same removal efficiency of CODM. and TOC, but for the different organic matters, the biodegradable organic matters with smaller molecular weights are easier to be removed. BF has higher removal efficiency of chloroform precursors than MBBR, and the same removal efficiency of total algae as MBBR. Both BF and MBBR show better removal capacity of microcystin, with the removal rates of 56% and 63% respectively. As biological pretreatment processes, MBBR and BF can strengthen the conventional process, ensuring drinking water safety.