一、研究目的日本国铁对列车厕所污水采取处理措施始于1951年。那时是从列车厕所滴流红色液体,测试飞散情况,以改变车辆厕所排便导筒位置的。1959年从滴流方式进一步发展为试用消毒粉碎式。1967年,开始在车辆上装配循环式集便箱,在车辆基地建立处理措施。新干线车辆就采用这种污水处理方式,以后又在窄轨的特快、直快等优等车上扩大使用。循环式污水处理方式,在世界上也受到了很高的评价,可是把它应用到窄轨的全部 First, the purpose of the study Japan’s railways to take the toilet sewage treatment measures began in 1951. At that time, the red liquid dripped from the train toilets to test the scattering of the toilet lavatory to change the position of the guide tube. In 1959 from trickle further development for the trial disinfection smash type. In 1967, we started to assemble circulating collection wagons on vehicles and set up treatment measures at vehicle bases. Shinkansen vehicles on the use of this sewage treatment, and later on the narrow-track express, straight and other premium vehicles to expand the use of. Circulating sewage treatment, in the world has also been highly commented, but it is applied to all of the narrow gauge