EFFECTS OF PH CONTROL ON COMPOSTING OF GARBAGE

被引：147

作者：

NAKASAKI, K

YAGUCHI, H

SASAKI, Y

KUBOTA, H

机构：

[1] Department of Chemical Engineering, Shizuoka University

[2] Shizuoka Seiki Co. Ltd, Fukuroi

[3] Tokyo Institute of Technology, Yokohama 227, 1-26-3, Aobadai, Midori-ku

来源：

WASTE MANAGEMENT & RESEARCH | 1993年 / 11卷 / 02期

关键词：

COMPOSTING; REACTION RATE; GARBAGE COMPOSTING; PH CONTROL; NITROGEN BALANCE; NH3; EVOLUTION; COMPOSTING MICROORGANISMS; WASTE TREATMENT;

D O I：

10.1177/0734242X9301100204

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Composting experiments of garbage were conducted by using a laboratory scale reactor under well controlled experimental conditions and the effects of pH control were quantitatively analysed. In the pH controlled experiment, lime was added to prevent pH decreasing below 7, especially at the early stage of composting. The degradation rate of organic matter in the pH controlled experiment was faster than that without. Nitrogen loss was enhanced by the control of pH value, but the amount of promotion was relatively small. The pH dependency on the activity of microorganisms, which contribute to the composting rate, was investigated by using a liquid medium containing glucose and proteins as nutrients. The optimum pH for the growth rate and the degradation activity of proteins of the microorganisms was in the range of 7-8, while the decomposition of glucose proceeded rapidly at an early stage of composting in a pH range from 6 to 9. © 1993, Sage Publications. All rights reserved.

引用

页码：117 / 125

页数：9

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