塑料三瓮化粪池粪便无害化处理效果评价

Effect Evaluation Of Non-hazardous Treatment Of the Faces For "Three-Urn-Mode" Plastic Septic Tanks

目的了解塑料三瓮化粪池粪便无害化处理效果,为农村改厕提供依据。方法采用环境流行病学现场调查和实验室分析研究方法。结果塑料三瓮化粪池厌氧发酵对粪大肠菌群和蛔虫卵杀灭效果达标率分别为100%和93.8%,寄生虫卵沉降率为95.2%,一瓮、二瓮到三瓮粪大肠菌群值逐渐增加,蛔虫卵数逐渐减少。安装使用塑料三瓮化粪池厕所的住户对三瓮塑料化粪池厕所的可接受度和满意度均为100%。结论正确安装和使用塑料三瓮化粪池能达到三格化粪池同样的粪便无害化处理的效果。

Objective To learn the effect of non - hazardous treatment of the feces for ＂Three - Urn - Mode＂ plastic septic tanks, and provide evidence for latrine improvement project in rural areas. Methods The methods of field environmental epidemiological study and the laboratory analysis were used. Results The standard - achieving rates of the effects of anaerobic fermentation of ＂Three - Urn - Mode＂ plastic septic tanks in killing fecal E. Coli and ascarid eggs reached 100% and 93.8% respectively. The sedimentation rate of parasite eggs was 95.2%. From the ＂ one - Grille＂ to the ＂Three - Grille＂ , the value of large intestine bacteria number increased gradually, and the number of ascarid eggs decreased gradual- ly. The acceptance degree and the satisfaction degree of residents who have installed and used ＂Three - Urn - Mode＂ plastic septic tanks reached 100%. Conclusion Just being installed and used properly, ＂Three - Urn - Mode＂ plastic septic tanks in non - hazardous treating of the feces can achieve the same effect as ＂Three - Grille - Mode＂ plastic septic tanks.