【摘要】 采用厌氧+好氧工艺,考察以贝壳为载体固定化微生物(以下简称B组)与游离污泥床(以下简称A组)处理黄姜皂素废水的启动运行特征。研究结果表明:(1)由于B组反应器内载体贝壳中的CaCO3的溶解为反应提供碱度,使反应器里的微生物免受酸性的抑制,致使B组的启动时间缩短;(2)贝壳本身特有的三层层状结构,使许多微生物聚居其中,免受废水中的有害的抑制成分的毒害,在整个实验运行期间,其COD去除率和NH3-N的去除率均高于对照组A组。更多还原

【Abstract】 The performance of shell-immobilized microorganisms(group B for short hereafter) and the free sludge bed(group A for short herafter) treating diosgenin wastewater by anaerobic and aerobic process was studied.The results of the experiment showed that,owing to alkalinity provided by CaCO3 dissolving in shell of group B reactor,the microorganisms of B reactor avoid suppressing from acidity in the effluent water to make the group B starting-up process shorten;the shell itself has unique structure of three layers,which causes many microorganisms to live together to avoid suppressing from deteterious ingredient,and in the course of the whole experiment,the COD and NH3-N removal efficiency of group B were higher than those of group A.更多还原