| Literature DB >> 26786401 |
Keiji Jindo1, Tomonori Sonoki2, Kazuhiro Matsumoto2, Luciano Canellas3, Asunción Roig4, Miguel A Sanchez-Monedero4.
Abstract
Application of biochar (10% v/v) to a manure composting matrix was investigated to evaluate its effect on the chemical composition of humic substances during the composting process. The characteristics of the humic acid (HA) and fulvic acid (FA) fractions were analyzed in compost mixtures originating from two different manures (poultry manure (PM) and cow manure (CM)). The C contents of HA and FA from the manure compost/biochar blends (PM+B and CM+B) were higher than those from PM and CM, with an enhanced recalcitrant fraction, as determined by thermogravimetric analysis. Spectroscopic analysis showed that enrichment of aromatic-C and carboxylic-C occurred in the FA fractions of PM+B and CM+B to a greater extent than in PM and CM. Biochar addition into the composting mixture improved the final compost quality, especially for the light humified fraction (FA).Entities:
Keywords: Charcoal; Compost; Fulvic acid; Humic acid; Organic waste
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Year: 2016 PMID： 26786401 DOI： 10.1016/j.wasman.2016.01.007
Source DB: PubMed Journal: Waste Manag ISSN： 0956-053X Impact factor: 7.145