Effects of bulking agent on the composting of "alperujo", the solid by-product of the two-phase centrifugation method for olive oil extraction

被引：70

作者：

Alburquerque, JA ^{[1
]}

Gonzálvez, J ^{[1
]}

García, D ^{[1
]}

Cegarra, J ^{[1
]}

机构：

[1] CSIC, Ctr Edafol & Biol Aplicada Segura, Dept Soil & Water Conservat & Organ Waste Managem, Murcia 30100, Spain

来源：

PROCESS BIOCHEMISTRY | 2006年 / 41卷 / 01期

关键词：

alperujo; olive-mill by-product; composting; bulking agent; compost;

D O I：

10.1016/j.procbio.2005.06.006

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

A pollutant solid material known as "alperujo", which is the main by-product of the Spanish olive oil extraction industry, was composted with either grape stalk (GS) or olive leaf (OL) as bulking agents. The experiment consisted of two piles which were composted for 34 weeks using forced ventilation (Rutgers strategy) assisted by mechanical turning. Then, substrates were allowed to mature during 16 weeks. Temperature, pH, total organic matter, total nitrogen, C/N ratio, water-soluble organic carbon, carbohydrates and phenols, fats, as well as the phytoxicity of the substrates were evaluated in order to monitor the composting progress. The composting performance was influenced by the characteristics of the bulking agents added, GS contributing more than OL to improve the advance of the process. However, both mature composts were equally free of phytotoxicity and showed a similar composition. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：127 / 132

页数：6

共 29 条

[1] Agrochemical characterisation of "alperujo", a solid by-product of the two-phase centrifugation method for olive oil extraction [J].