一、试验研究的经过车上净化排水式粪便处理装置的试验研究在1978～1980年进行了以下几项工作:拟定装置和水质标准;选定所使用的药剂;研究过滤方法和进行厕所使用状况的现车调查等。 1979年试制了车上净化排水式粪便处理装置(以下简称装置),安装在三鹰段两辆115系电车上,在中央东线进入现车试验阶段。根据装置的状态及水质等调查结果,于1980年改进了装置的形状,试制了改良型装置,替换1979年试制的装置,同时又在高 First, the pilot study of the vehicle purification drainage type excrement disposal experimental study from 1978 to 1980 carried out the following tasks: the development of equipment and water quality standards; selected by the use of reagents; research methods and the use of toilet filtration The current car investigation. In 1979, a purification decontamination equipment (hereinafter referred to as “device”) was installed on the two 115-series trams in Mitaka and entered the current vehicle test phase in the central east line. Based on the survey results such as the state of the plant and the water quality, the shape of the plant was improved in 1980, an improved plant was trial-manufactured to replace the pilot plant in 1979,