Energy recovery from one- and two-stage anaerobic digestion of food waste

被引：107

作者：

De Gioannis, Giorgia ^{[1
,2
]}

Muntoni, Aldo ^{[1
,2
]}

Polettini, Alessandra ^{[3
]}

Pomi, Raffaella ^{[3
]}

Spiga, Daniela ^{[1
]}

机构：

[1] Univ Cagliari, Dept Civil & Environm Engn & Architecture, DICAAR, Piazza Armi 1, I-09123 Cagliari, Italy

[2] CNR, Environm Geol & Geoengn Inst, IGAG CNR, Piazza Armi 1, I-09123 Cagliari, Italy

[3] Univ Roma La Sapienza, Dept Civil & Environm Engn, Via Eudossiana 18, Rome, Italy

来源：

WASTE MANAGEMENT | 2017年 / 68卷

关键词：

Anaerobic digestion; Food waste; One-stage; Two-stage; Hydrogen; Methane; FERMENTATIVE HYDROGEN-PRODUCTION; METHANE POTENTIAL BMP; ORGANIC FRACTION; ACTIVATED-SLUDGE; CO-DIGESTION; SOLID-WASTES; LOADING RATE; PERFORMANCE; HOMOACETOGENESIS; DEGRADATION;

D O I：

10.1016/j.wasman.2017.06.013

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

One- and two-stage anaerobic digestion of food waste aimed at recovering methane (CH4) and hydrogen and methane (H-2 + CH4), respectively, were compared in order to assess the potential benefits from the two-stage process in terms of overall energy recovery. Results suggest that a two-stage process where the first reactor is properly operated in order to achieve a significant net hydrogen production, may display a 20% comparatively higher energy recovery yield as a result, mainly, of enhanced methane production as well as of the associated hydrogen production. The highest methane production of the two-stage process was due to improved hydrolysis and fermentation of food waste, with increased amounts of volatile fatty acids being readily available to methanogenesis. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：595 / 602

页数：8

共 49 条

[1] Effects of carbohydrate, protein and lipid content of organic waste on hydrogen production and fermentation products [J].