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[目的 ] 探讨改进后双瓮漏斗式厕所粪便无害化处理效果及处理后粪便作为肥料对土壤和蔬菜的生物性污染的影响。 [方法 ] 对处理区和对照区进行了粪便细菌及寄生虫卵检测和人群流行病学调查。 [结果 ] 处理后粪液粪大肠菌值 >10 -4 ,寄生虫卵沉降率为 95 0 %,和对照区相比 ,处理区土壤粪大肠菌和蛔虫卵污染程度分别下降了 5 7 1%和 3 8 9%,蔬菜中的粪大肠菌和蛔虫卵污染程度分别下降了 5 0 9%和 81 8%;处理区和对照区的土壤和蔬菜中均未检出沙门氏菌 ;1994～ 1996年 ,处理区肠道传染病发病率比对照区分别下降了 3 8 2 %、5 7 2 %、40 7%。 [结论 ] 处理粪便达到了粪便无害化卫生标准要求 ,将其用于种植蔬菜能显著降低土壤和蔬菜生物性污染的程度 ,并具有明显的卫生防病效果。
[Objective] The research aimed to discuss the effect of improving the excrement harmlessness of double urn funnel toilet and the influence of excrement as biological fertilizer on soil and vegetable after treatment. [Method] The detection of stool bacterial and parasite eggs and epidemiological investigation in the population were conducted in the treatment area and the control area. [Result] The fecal coliform value> 10 -4 and the parasitic egg deposition rate was 95 0% after treatment. Compared with the control area, the fecal coliform and ascaris egg levels in the treated area decreased by 57.1% And 38.9% respectively. The fecal coliform and roundworm egg contamination in vegetables decreased by 59.9% and 81.8% respectively. No Salmonella was detected in soil and vegetables in the treatment and control areas. From 1994 to 1996, The incidence of intestinal infectious diseases in the treatment area decreased by 382%, 572% and 407% respectively compared with the control area. [Conclusion] The treatment of excrement reached the hygienic standard of excrement decontamination, and its application to vegetable cultivation could significantly reduce the degree of biological contamination of soil and vegetables, and had obvious health and disease prevention effect.