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

Paper ID Volume ID Publish Year Pages File Format Full-Text
36288 45127 2006 6 PDF Available
Title
Effects of bulking agent on the composting of “alperujo”, the solid by-product of the two-phase centrifugation method for olive oil extraction
Abstract

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.

Keywords
“Alperujo”; Olive-mill by-product; Composting; Bulking agent; Compost
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Effects of bulking agent on the composting of “alperujo”, the solid by-product of the two-phase centrifugation method for olive oil extraction
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 41, Issue 1, January 2006, Pages 127–132
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
Online Support
Any Questions? feel free to contact us