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Use of agave bagasse for production of an organic fertilizer by pretreatment with Bjerkandera adusta and vermicomposting with Eisenia fetida.
- Source :
- Environmental Technology; May2016, Vol. 37 Issue 10, p1220-1231, 12p
- Publication Year :
- 2016
-
Abstract
- Agave tequilanaWeber is used in tequila and fructans production, with agave bagasse generated as a solid waste. The main use of bagasse is to produce compost in tequila factories with a long traditional composting that lasts 6–8 months. The aim of this study was to evaluate the degradation of agave bagasse by combining a pretreatment with fungi and vermicomposting. Experiments were carried out with fractionated or whole bagasse, sterilized or not, subjecting it to a pretreatment withBjerkandera adustaalone or combined with native fungi, or only with native bagasse fungi (non-sterilized), for 45 days. This was followed by a vermicomposting withEisenia fetidaand sewage sludge, for another 45 days. Physicochemical parameters, lignocellulose degradation, stability and maturity changes were measured. The results indicated that up to 90% of the residual sugars in bagasse were eliminated after 30 days in all treatments. The highest degradation rate in pretreatment was observed in non-sterilized, fractionated bagasse with native fungi plusB. adusta(BNFns) (71% hemicellulose, 43% cellulose and 71% lignin) at 45 days. The highest total degradation rates after vermicomposting were in fractionated bagasse pre-treated with native fungi (94% hemicellulose, 86% cellulose and 91% lignin). However, the treatment BNFns showed better maturity and stability parameters compared to that reported for traditional composts. Thus, it seems that a process involving vermicomposting and pretreatment withB. adustacould reduce the degradation time of bagasse to 3 months, compared to the traditional composting process, which requires from 6 to 8 months. [ABSTRACT FROM PUBLISHER]
- Subjects :
- AGAVES
EISENIA foetida
ORGANIC fertilizers
BAGASSE
SOLID waste
Subjects
Details
- Language :
- English
- ISSN :
- 09593330
- Volume :
- 37
- Issue :
- 10
- Database :
- Complementary Index
- Journal :
- Environmental Technology
- Publication Type :
- Academic Journal
- Accession number :
- 113394282
- Full Text :
- https://doi.org/10.1080/09593330.2015.1108368