【摘要】 研究了化学生物絮凝工艺对溶解性有机物的去除效果及其分子质量分布的变化特征,并分别与化学强化一级工艺、初沉池和二级生物处理工艺的出水进行对比。试验结果显示:化学生物絮凝工艺对分子质量>2 ku的有机物去除效果明显;对溶解性有机物和UV260的去除率分别为45.9%和38.7%,与城市污水二级生物处理工艺相比,其去除溶解性有机物的能力较弱;对溶解性有机物的去除是通过化学和生物作用共同实现的,其中生物作用主要表现为生物吸附作用。更多还原

【Abstract】 A study was made on the characteristics of the molecular weight distribution and the removal of the dissolved organic matter in the Chemical-Biological Flocculation Process（CBFP）.Chemically enhanced primary treatment process,primary sedimentation tank process and secondary treatment process were taken as the parallel-compared wastewater treatment processes.The experimental results show that the removal rates of the dissolved organic matter and UV₂₆₀ are 45.9% and 38.7% respectively,and the organics with molecular weight more than 2 ku are significantly reduced in CBFP.Compared with the biological secondary treatment process,CBFP has weaker capability in removing the dissolved organic matter.The dissolved organic matter is removed through chemical flocculation and biological adsorption in CBFP.更多还原