生态厕所中不同反应基质的对比研究

目的]筛选适合作高效有机肥的基质。方法]采用日本研制生产的S-15型生态厕所为实验装置,分别利用木屑与豆秆混合物、纯豆秆和纯稻壳作为反应基质处理人体排泄物,对比研究了反应基质营养元素含量变化和人体粪便的减量化过程。结果]混合物基质和纯豆秆基质的控温比纯稻壳基质稳定,混合物基质和纯稻壳的含水率维持在40%~60%,pH值在8.0~9.0,比纯豆秆基质符合有机肥料的条件。混合物基质较其他2种基质更能有效地消除臭味,对人类排泄物的降解率高达97.7%,温度和含水率的稳定性良好,终产物中pH值8.2,N 4.3%,P 1.1%,K 2.0%,有机物总量76.2%。结论]木屑与豆秆混合物基质的N、P、K含量丰富,是一种高效的有机肥,具有良好的推广前景。

Contrastive Research on Different Reaction Matrix in Bin-toilet

Objective] The study aimed to screen the matrix suitable to use as the high-effective organic fertilizer.Method]With the S-15 bio-toilet produced by Japan as the tested installation,the mixture of beanstalk and sawdust,the pure beanstalk and paddy were used as the reactive matrix for treating the human body excreta to comparatively study the changes of nutrition elements in reactive matrix and reduction process of human feces.Result] The mixture and pure beanstalk were more stable than pure paddy on controlling temperature,their water content kept in 40%～60% and pH in 8.0～9.0,which more accorded to the condition of becoming organic fertilizer than pure paddy.The mixture could dispel the funk effectively better than the other two matrixes.Its degradation rate for human body excreta reached 97.7%,the stability of temperature and water content maintained was fine,and its pH of final total organic matter was 8.2,N 4.3,P 1.1%,K 2.0%,total organic matter 76.2%.Conclusion] The mixture matrix of beanstalk and sawdust was rich in N,P,K,so it was a high-effective organic fertilizer and has a good popularization prospect.