浙江省农村户厕粪便无害化处理效果评价OA

Objective To explore the effectiveness and influencing factors of fecal harmless treat-ment in rural household septic tanks and sewage treatment terminals in Zhejiang Province,so as to provide a basis for rural toilet renovation work.Methods A total of 139 households from 3 counties were selected based on strati-fied random sampling by terrain in Zhejiang Pravince.Questionnaire surveys were conducted to collect toilet reno-vation information and to evaluate satisfaction.Water samples from the inlet and outlet of septic tanks and the ef-fluent of sewage treatment terminals were collected to detect indicators such as fecal coliform value,and data were analyzed using SPSS Statistics 17.0.Results The compliance rate of fecal coliform value at the outlet of septic tanks was 52.59％,which was significantly different from that at the inlet(x2=8.301,P＜0.05).There were differences in compliance rates among different service years(x2=6.848,P＜0.05),but the linear relationship was weak.After treatment at the sewage treatment terminals,the compliance rates of 4 pollutants were within the range between 72.22％and 83.33％,significantly higher than those before pipe connection.The public satisfac-tion rate exceeded 94％.Conclusions The three-compartment septic tank plus sewage treatment terminal model has achieved good effects.The relationship between the service life of septic tanks and treatment effects needs in-depth study,and construction supervision and long-term operation and maintenance should be strengthened.