摘要
[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] To study the effects of non-hazardous treatment of excreta of the improved two-urn-and-a-funnel toilet and the influence of the treated excreta as fertilizer on biological pollution in soil and vegetables.[Methods] The test of bacteria and parasite and epidemiology research was carried out in the treated area and control area.[Result] The value of fecal cdiform bacteria in the treated excreta was more than 10 -4 and the sediment rate of parasits ova was 95.0%; Compared with that in control area, the pollution of fecal cdiform bacteria and ascarid ova in the treated area reduced 57.19% and 38.9% respectively in soil,50.9% and 81.8% respectively in vegetables; In soil and vegetables, salmonellae was not found both in treated area and control area; During 1994～1996, the incidence of intestinal infectious diseases among residents of treated area reduced 38.2%,57.2% and 40.7% respectively compared with that of control area.[Conclusion] It indicated that The treated excreta met the Sanitary Standard for the Non-hazardous Treatment of Excrement and it could significantly reduced the pollution in the soil and the vegetables when applied to vegetable fields as fertilzer, so it had the clear effects of diseases prevention.
出处
《实用预防医学》
CAS
2000年第4期241-243,共3页
Practical Preventive Medicine
关键词
粪便
无害化处理
土壤
蔬菜
施肥
Excrement,Non-hazardous treatment, Vegetable,Soil,Fertilization.
