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我们通过四年多试验和改进,研制成一种适合农村家庭使用的积肥灭害的漏斗式双瓮厕所。效果观察据1980年4月～10月定期采样和现场观察,效果如下:一、保肥:漏斗式厕所平均每人每年积人粪尿1000斤左右(儿童除外).据三个厕所的24次测定,人粪尿含氮量为0.47%,含磷量为0.19%,含钾量为0.25%.贮存3个月后,含氮量为0.45%,保氮效果95.7%.速效氮(氨氮)由0.28%升高到0.39%。二、杀菌灭卵: 漏斗式厕所的前瓮,每100克粪液中平均有蛔虫卵38890个,每克粪液中含大肠肝菌1千万至1亿个.后瓮100克粪液中有蛔虫卵126～9430个,比前瓮减少了75.7～99.7%.大肠杆菌为1万～10万个/克,比前瓮死亡99%以上,基本符合粪便无害化的卫生要求.三、防蝇灭蛆:防蝇,用扑蝇笼法,以腐臭的猪小肠作诱饵,在5、6、7三个月份,每10天观察一次。经6个厕所54次观察的结果为:漏斗式厕所每天平均扑蝇
Through more than four years of experiments and improvements, we developed a funnel-style double urn toilet suitable for rural households to deal with the accumulation of fertilizer. Effect observation According to the regular sampling and field observation from April to October of 1980, the results are as follows: I. Fertility maintenance: The average length of funnel-type toilets is about 1000 kg (excluding children) per person per year. The nitrogen content of human excrement was 0.47%, the content of phosphorus was 0.19% and the content of potassium was 0.25%. After 3 months of storage, the nitrogen content was 0.45% and the nitrogen retention effect was 95.7% Increased from 0.28% to 0.39%. Second, bactericidal oviposition: Funnel-style front urn, every 100 grams of manure in an average of 38,890 roundworm eggs, each gram of manure containing E. coli 100000000 to 100000000. After the urn 100 grams of manure There are 126 to 9430 roundworm eggs, 75.7 to 99.7% less than the former urn E. Escherichia coli is 10 to 100 000 per gram, which is more than 99% of the death of the former urns and basically meets the hygiene requirements of excrement detoxification. Anti-flies kill maggots: anti-flies, with flies cage method to the rotten pig intestine as a bait in 5,6,7 three months, every 10 days to observe. The results of 54 observations by 6 toilets were as follows: average daily flies in funnel-type toilets