The recycling of garbage as fertilizer by method of TUA(Tokyo University of Agriculture)

Abstract

In Japan, about 20 million tons of the garbage is produced per year. Most of it is incinerated or buried. But lately the recycling of garbage as an agricultural resource has become of major interest. The composting is a general method for recycling of garbage, but this process involves problems such as the length of time necessary or the emission of an offensive odor. In this study, a small amount of urea was added into dried garbage, and pellets were prepared. This material was effective as an alternative to fertilizer and for reduction of the amount of nitrate leaching from the soil.