期刊
BIORESOURCE TECHNOLOGY
卷 199, 期 -, 页码 386-397出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.09.007
关键词
Algae; Anaerobic biodegradability; Animal by-products; Lignocellulosic biomass; Sewage sludge
资金
- Campus France
- Greek General Secretariat for Research and Technology through 'Bilateral projects Greece-France' [-1455-FrancEllas]
- Spanish Ministry of Economy and Competitiveness through EDARSOL project [CTQ2014-57293-C3-3-R]
- Generalitat de Catalunya through Consolidated Research Groups [2014SGR116]
- National Council for Scientific and Technological Development (CNPq) from the Brazilian Ministry of Science, Technology and Innovation
When properly designed, pretreatments may enhance the methane potential and/or anaerobic digestion rate, improving digester performance. This paper aims at providing some guidelines on the most appropriate pretreatments for the main feedstocks of biogas plants. Waste activated sludge was firstly investigated and implemented at full-scale, its thermal pretreatment with steam explosion being most recommended as it increases the methane potential and digestion rate, ensures sludge sanitation and the heat needed is produced on-site. Regarding fatty residues, saponification is preferred for enhancing their solubilisation and bioavailability. In the case of animal by-products, this pretreatment can be optimised to ensure sterilisation, solubilisation and to reduce inhibition linked to long chain fatty acids. With regards to lignocellulosic biomass, the first goal should be delignification, followed by hemicellulose and cellulose hydrolysis, alkali or biological (fungi) pretreatments being most promising. As far as microalgae are concerned, thermal pretreatment seems the most promising technique so far. (C) 2015 Elsevier Ltd. All rights reserved.
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