Industrial Application of Integrated A2/O Equipment in Rural Domestic Sewage Treatment
With the vigorous implementation of the rural revitalization strategy in China,the treatment technology of rural domestic sewage has been continuously developing.Accroding to the experimental data of integrated A2/O equipment for rural domestic sewage treatment,this study investigated the impact of DO concentration,nitrifying liquid reflux ratio,sludge reflux ratio and other parameters on the sewage treatment process,analyzed the mutual effects of different parameters on the treatment,and explored the best operating parameters.The results showed that the optimal operation parameters of A2/O process for rural domestic sewage treatment should control DO concentration in the range of2～3 mg/L,nitrifying liquid reflux ratio of 200％,and sludge reflux ratio of 100％.After adjusting and controlling the optimal process parameters for sewage treatment,the effluent meets the Class I standard in Table 1 of the Discharge standard of water pollutants for centralized rural sewage treatment facilities(DB33/973-2021),providing case support and reference for the application of A2O integrated equipment in rural domestic sewage treatment.
NETL
NSTL
万方数据
