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目的 :了解粪尿分集式厕所及水压式双管道自动排渣沼气池两种生态卫生厕所对猪蛔卵的灭活效果并进行比较。方法 :采用 Tea袋法定期定量进行虫卵存活率观察。在监测点观察 5个粪尿分集式厕所和 5个沼气池 ,每厕粪坑放入 2 4个 Tea袋 ,每月对监测厕所采样一次 ,每次 (月 )抽取两袋进行虫卵存活率观察。采集回来的虫卵在实验室常温下培养 3周后再进行检查 ,并设对照组虫卵进行对比观察。结果 :存放于 5个粪尿分集式厕所粪坑内的猪蛔虫卵 ,1、2和 3个月后平均虫卵存活率分别为 89.6 6 %、6 3.5 7%和 19.4 2 % ,6个月后存活率仅为 1.4 9% ,11个月后虫卵存活率为 0 ;存放于沼气池发酵池内的猪蛔虫卵 ,1、2和 3个月后虫卵存活率分别为 10 0 %、84 .89%和 70 .6 4 % ,6个月后存活率为 5 7.4 9% ,活卵数量逐月减少 ,11个月后虫卵存活率为 0 ;而对照组的虫卵 1年后存活率为 85 .39%。结论 :两种生态卫生厕所对寄生虫卵均有较好的杀灭作用 ,但粪尿分集式厕所比自动排渣沼气池灭活虫卵的时间早且灭活率高
OBJECTIVE: To understand and compare the inactivation of swine ascaris eggs in two sanitary lavatory toilets with excrement-urine diversion toilets and hydraulic double-pipe automatic discharge digesters. Methods: Using bag of tea regularly quantitative observation of the survival rate of eggs. Five manure-urine diversion toilets and 5 biogas digesters were observed at the monitoring sites. Each tea manure pit was placed in 24 tea bags, and the monitoring toilets were sampled once a month. Two bags were collected each month (month) to observe the survival rate of the eggs . The collected eggs were cultured in the laboratory at room temperature for 3 weeks and then checked, and the control group of eggs were compared. Results: The results showed that the average survival rates of swine Ascaris suum eggs in 1, 2 and 3 months were 89.6 6%, 6 3.5 7% and 19.4 2%, respectively. After 6 months The survival rate was only 1.4 9%. After 11 months, the survival rate of the eggs was 0. The eggs of Ascaris suum in the biogas fermentation tank were 100%, 100%, 1, 2 and 3 months later respectively. 89% and 70.64%. After 6 months, the survival rate was 5 7.49%. The number of live eggs decreased month by month, and the survival rate of eggs was 11 after 11 months. The survival rate of control eggs after 1 year 85.39%. Conclusion: The two types of sanitation latrines have a good killing effect on parasite eggs, but the excrement-urine type toilets are earlier and more inactivated than the self-deactivating digesters