Modelling vinasse/cotton waste ratio incubation for optimum composting

被引：22

作者：

Díaz, MJ

Eugenio, ME

Jiménez, L

Madejón, E

Cabrera, F

机构：

[1] EPS Univ Huelva, Dept Ingn Quim, Palos De La Frontera 21819, Huelva, Spain

[2] Univ Cordoba, Dept Ingn Quim, Cordoba 10071, Spain

[3] CSIC, Inst Recursos Nat & Agrobiol, E-41080 Seville, Spain

来源：

CHEMICAL ENGINEERING JOURNAL | 2003年 / 93卷 / 03期

关键词：

biodegradability; compost; vinasse; cotton waste;

D O I：

10.1016/S1385-8947(02)00252-8

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A central composite experimental design was used to investigate the influence of incubation conditions (vinasse added and operation time) for vinasse/cotton waste mixtures on the properties of products obtained (pH, electrical conductivity, organic matter, Kjeldahl-N, C/N ratio, biodegradability, Kjeldahl-N losses and germination index) in order to determine the best in-vessel composting conditions. The range of the independent variable measured was 0-80% for vinasse added and 1-50 days for operation time. A second-order polynomial model consisting of two independent process variables was found to accurately describe the vinasse/cotton waste incubation. The differences between the experimental values and those estimated by using the equations never exceeded 10% of the former. Obtaining products with acceptable chemical properties, high biodegradability and minimum N losses entails operating at medium operation time (20-35 days) and 20-30% of vinasse added. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：233 / 240

页数：8

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