Biogas production within the bioethanol production chain: Use of co-substrates for anaerobic digestion of sugar beet vinasse

被引：55

作者：

Moraes, B. S. ^{[1
]}

Triolo, J. M. ^{[2
]}

Lecona, V. P. ^{[2
]}

Zaiat, M. ^{[3
]}

Sommer, S. G. ^{[2
]}

机构：

[1] Brazilian Ctr Res Energy & Mat CNPEM, Brazilian Bioethanol Sci & Technol Lab CTBE, BR-13083970 Campinas, SP, Brazil

[2] Univ Southern Denmark, Fac Engn, Dept Chem Engn Biotechnol & Environm Technol, DK-5230 Odense M, Denmark

[3] Univ Sao Paulo, Sao Carlos Engn Sch EESC, Ctr Res Dev & Innovat Environm Engn CPDI EA, Biol Proc Lab LPB, BR-13563120 Sao Carlos, SP, Brazil

来源：

BIORESOURCE TECHNOLOGY | 2015年 / 190卷

基金：

巴西圣保罗研究基金会;

关键词：

Co-digestion; Sugar beet vinasse; Cow manure; C/N ratio; Continuous stirred tank reactor (CSTR); FOOD WASTE; MANURE; BIODEGRADABILITY; FERMENTATION; PERSPECTIVES; REACTOR; FUTURE; ENERGY; BRAZIL;

D O I：

10.1016/j.biortech.2015.04.089

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Bioethanol production generates large amounts of vinasse, which is suitable for biogas production. In this study, the anaerobic digestion of sugar beet vinasse was optimised using continuous stirred-tank reactors (CSTR) supplemented either with lime fertiliser or with 3% cow manure. In both reactors, the C/N ratio was adjusted by adding straw. The biochemical methane potential (BMP) of vinasse was 267.4 +/- 4.5 L CH4 kg VS-1. Due to the low content of macro-and micronutrients and low C/N ratio of vinasse, biogas production failed when vinasse alone was fed to the reactor. When co-substrate was added, biogas production achieved very close to the BMP of vinasse, being 235.7 +/- 32.2 L CH4 kg VS-1 from the fertiliser supplied reactor and 265.2 +/- 26.8 L CH4 kg VS-1 in manure supplied reactor at steady state. Anaerobic digestion was the most stable when cow manure was supplied to digestion of vinasse. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：227 / 234

页数：8

共 37 条

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