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Influence of microbial inoculation and co-composting material on the evolution of humic-like substances during composting of horticultural wastes

Paper ID Volume ID Publish Year Pages File Format Full-Text
36359 45129 2006 6 PDF Available
Title
Influence of microbial inoculation and co-composting material on the evolution of humic-like substances during composting of horticultural wastes
Abstract

Four different raw materials (olive-oil mill, pruning waste, rice straw and almond shell waste) used as additives were mixed with pepper plant wastes for composting purposes. Three bacterial strains isolated from prior composting processes and identified as Bacillus shackletonni, Streptomyces thermovulgaris and Ureibacillus thermosphaericus were added to every windrow and their effect on humic-like substances evolution was studied. In all the cases, an increase in the humification indices (humic to fulvic acids ratio, humification ratio and humification index) was obtained. On the other hand, inoculation significantly affected the humification indices, and differences due to both raw materials and microbial inoculants could be observed. When inoculated in almond shell and rice straw heaps respectively, B. shackletonni and U. thermosphaericus induced higher humification levels than those obtained for other raw material/inoculant combinations. Thus, the improvement of composting processes by means of inoculation seems to depend on properties of raw materials and microorganisms applied.

Keywords
Compost; Agricultural wastes; Microbial inoculants; Humification indices
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Influence of microbial inoculation and co-composting material on the evolution of humic-like substances during composting of horticultural wastes
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 41, Issue 6, June 2006, Pages 1438–1443
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
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