COMPOSTING OF FOOD WASTE AND CATCHING NITROGEN

被引：8

作者：

BRINK, N

机构：

[1] Swedish University of Agricultural Sciences, Uppsala

来源：

ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE | 1993年 / 43卷 / 02期

关键词：

TOPSOIL; MANURE; SEWAGE WATER; LEACHATE; MASS BALANCE; NUTRIENTS; NITROGEN TURNOVER;

D O I：

10.1080/09064719309411226

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Food waste from a school and a restaurant was composted with topsoil only and together with topsoil, cattle manure, stock compost and sewage water in different combinations. The temperature maximum reached 46-55-degrees-C in composts with 50 % wet weight, and 33-36-degrees-C in composts with 20-30 % wet weight. Leachate was strongly polluted. The loss of elements in that way was negligible. The loss of dry matter (DM) was 9-19 %, and that of carbon (C) was 36-62 %. The loss of nitrogen to the air was less than 10 % in a compost containing biodynamic stock compost, and 40-47 % in the other. The amount of topsoil and stock compost seems to be decisive.

引用

页码：114 / 120

页数：7