KINETICS OF COMPOSTING RICE STRAW WITH GLUE WASTE AT DIFFERENT CARBON - NITROGEN RATIOS IN A SEMIARID ENVIRONMENT

被引：9

作者：

JHORAR, BS

PHOGAT, V

MALIK, RS

机构：

[1] Department of Soil Science, Haryana Agricultural University, HISAR, FL, 125 004

来源：

ARID SOIL RESEARCH AND REHABILITATION | 1991年 / 5卷 / 04期

关键词：

CARBON NITROGEN RATIO; COMPOSTING; KINETICS; DECOMPOSITION; RICE STRAW; GLUE WASTE; SEMIARID ENVIRONMENT;

D O I：

10.1080/15324989109381289

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Glue waste was mixed with chopped rice straw at carbon:nitrogen (C:N) ratios of 1.5, 24.8, 30.3, 35.4, 39.9, and 116.3 and allowed to compost for 128 days under aerobic conditions. Moisture was kept constant at 65% (w/w). Organic carbon was determined at 0, 6, 14, 20, 26, 32, 44, 56, 68, 80, 92, 104, 116, and 128 days. Two parallel first-order kinetics were found for describing the process of composting. Decomposition percentage increased linearly with the composting rate constant k2 of fast-decaying component. Composting rate constant k1, A0/C0, and (C0 - C)/C0 were C:N ratio dependent. Optimal C:N ratio for obtaining early and efficient composting was 30.3. Half-life of fast decaying component was within one week for different materials. Glue waste compost had a nitrogen loss of 44.7%. This study evolved a cheap and practical biotechnology to convert agricultural and industrial waste into a beneficial compost by increasing decomposition rate, reducing pungent odor of glue waste, and narrowing C:N ratio to acceptable limits.

引用

页码：297 / 306

页数：10

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