共固定化菌藻对市政污水中氮磷去除的研究

Co-immobilized Algal-bacterial to Remove Nutrient Substance of Municipal Wastewater

以PVA为主要包埋材料,将活性污泥和蛋白核小球藻共固定化,用气升式反应器连续处理模拟生活污水,结果表明:共固定化菌藻共生系统适于处理高有机负荷、低氮磷浓度的市政污水,NH+4-N的最高去除率可接近100%,P的最高去除率可达到93.6%。24h无光照对NH+4-N、P的去除没有影响,但缺少光照多于36h则影响较大。

Co-immobilized activated sludge and Chlorella pyrenoidosa with PVA as entrapping agent was used for removing nitrogen and phosphorus of simulating municipal wastewater continuously treated in airlifted reactor. Results showed the system was efficient for municipal wastewater of high COD and low nutrient concentration, with removal efficiency of NH4+-N close to 100% and 93.6% phosphorus to the maximum. Short sunlight for 24 hours has no effect on nitrogen and phosphorus removal while there is a big effect with sunlight lacking over 36 hours.