Effects of olive mill wastewater addition in composting of agroindustrial and urban wastes

被引：76

作者：

Paredes C. ^{[1
]}

Bernal M.P. ^{[2
]}

Roig A. ^{[2
]}

Cegarra J. ^{[2
]}

机构：

[1] Department of Agrochemistry, University of Miguel Hernandez, 03312 Orihuela (Alicante), Ctra. Beniel, km. 3

[2] Department of Soil and Water Conservation and Organic Waste Management, Centro de Edafología y Biología Aplicada del Segura, CSIC, Murcia 30080

来源：

Biodegradation | 2001年 / 12卷 / 4期

关键词：

Composting; Cotton waste; Olive mill wastewater; Orange industrial waste; Sewage sludge;

D O I：

10.1023/A:1017374421565

中图分类号：

学科分类号：

摘要：

In order to study the suitability of olive mill wastewater (OMW) for composting, this liquid waste was added to two different mixtures of agroindustrial and urban wastes and the composting process was compared with two other piles of similar composition, but without OMW. These four piles were studied in a pilot plant using the Rutgers static pile system. The addition of OMW produced a greater proportion of degradable organic matter or a higher degradation rate, higher electrical conductivity values, greater losses of total N and lower nitrification than in piles without OMW. Its addition also restricted the increase of the cation exchange capacity and provoked the appearance of phytotoxicity or a longer persistence of phytotoxicity. However, in general, all the composts showed increases in the cation exchange capacity, the percentage of humic acid-like carbon, the polymerisation ratio of these humic substances (which revealed that the organic matter had been humified during composting) and the germination index, the latter indicating the reduction of phytotoxicity during the process.

引用

页码：225 / 234

页数：9

共 32 条

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