摘要
研究了臭氧化污泥减量技术联合A^2/O、倒置A^2/O与传统A^2/O在出水和污泥产率上的变化。结果表明,臭氧化A^2/O、臭氧化倒置A^2/O的出水与传统A^2/O相比未出现恶化,它们对COD和含氮物质的去除率分别为87.4%,53.7%和93%,66.5%,存在倒置A^2/O对臭氧混合液中有机质及含氮物质的利用率较A^2/O高的可能。试验按每克SS投加0.05 g O_3对A2/O与倒置A^2/O产生的约60%剩余污泥处理时,在短期内未造成出水磷含量的大幅升高,并且出水磷含量受臭氧混合液DO、二沉池底部DO的影响,两系统的污泥产率分别较传统A^2/O降低50%,56%。
This paper intends to study the changes of water quality and sludge yield of A^2/ O and reversed A^2/ O combined with ozonation reduction technology（ A^2/ O,reversed A^2/ O）,compared to the conventional A^2/ O. It is found that A^2/ O and reversed A^2/ O have no obvious deterioration in water quality,the removal rates of A^2/ O and reversed A^2/ O on COD and nitrogen- containing substances are 87. 4%,53. 7% and 93%,66. 5% respectively. There exists the problem by reversed A^2/ O,that the removal rate of organic matter and nitrogen- containing substances in mixed ozonation liquid may be a litter higher than that of A^2/ O. When about 60% of excess sludge,produced from the ozonation A^2/ O and the ozonation reversed A^2/ O,is treated at the dosage of 0. 05 g O_3 per gram SS,it will not result in the remarkable rise of effluent phosphorus content in short term,which is related to the mixed ozonation liquid and DO at the bottom of the secondary settling tank and the sludge yield in process of A^2/ O and reversed A^2/ O will be reduced by 50% and 56% respectively,compared to the conventional A^2/ O.
出处
《工业安全与环保》
北大核心
2016年第5期16-19,共4页
Industrial Safety and Environmental Protection
基金
2014年教育部归国留学人员科研启动基金
