【摘要】 在上流式曝气生物滤池中,在相同工艺条件下,进行了球形陶粒及不规则页岩作填料处理生活污水的对比研究。结果表明,在单级生物滤池中,球形陶粒与不规则页岩作填料处理生活污水时,它们对COD、SS的去除均能达到满意效果,二者处理效果接近,能达标排放;对NH4+-N的去除效率都不高,难以达标排放,需设计二级生物滤池处理NH4+-N。更多还原

【Abstract】 In a combined process of Up-flow biological aerated filter(UBAF),spherical ceramsite and irregular shale is comparatively studied in dealing with wastewater through the same craft.The experimental results show that in single bio-filter,the removal effect of chemical oxygen demand(COD) and suspended solid(SS) using these two kinds of packings is similar and efficient to reach the discharge standards;while the removal effect of ammonia nitrogen removal is not satisfied,and two-stage bio-filter is needed to treat ammonia nitrogen to reach discharge standards.更多还原