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
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
收藏
页码:233 / 240
页数:8
相关论文
共 35 条
[1]  
Akhnazarova S., 1982, EXPT OPTIMIZATION CH
[2]  
ALLISON LE, 1965, METHODS SOIL ANAL, V2, P367
[3]  
[Anonymous], 1995, Standard methods for examination of water and waste water, V19th
[4]  
[Anonymous], 1996, METHODS SOIL ANAL PA, DOI DOI 10.2136/SSSABOOKSER5.3.C38
[5]  
Ayers V., 1997, 1997 Proceedings Beltwide Cotton Conferences, New Orleans, LA, USA, January 6-10, 1997: Volume 2., P1615
[6]  
Bernal M. P., 1996, The science of composting: part 2., P1074
[7]   Optimal operating parameters in the composting of swine manure with wastepaper [J].
Choi, K .
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES, 1999, 34 (06) :975-987
[8]  
CRAWFORD JH, 1983, PROCESS BIOCHEM, V18, P14
[9]  
GLENDINNING T, 1991, COTTON COMPOSTING BI, V32, P65
[10]   CHARACTERIZATION OF WASTES FROM OLIVE AND SUGAR-BEET PROCESSING INDUSTRIES AND EFFECTS OF THEIR APPLICATION UPON THE ORGANIC FRACTION OF AGRICULTURAL SOILS [J].
GONZALEZVILA, FJ ;
VERDEJO, T ;
MARTIN, F .
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY, 1992, 46 (1-3) :213-222