Evaluation of the hydrolytic-acidogenic step of a two-stage mesophilic anaerobic digestion process of sunflower oil cake

被引：100

作者：

De La Rubia, M. A. ^{[1
]}

Raposo, F. ^{[1
]}

Rincon, B. ^{[1
]}

Borja, R. ^{[1
]}

机构：

[1] CSIC, Inst Grasa, Seville 41012, Spain

来源：

BIORESOURCE TECHNOLOGY | 2009年 / 100卷 / 18期

关键词：

Hydraulic retention time (HRT); Organic loading rate (OLR); Sunflower oil cake (SuOC); Two-stage anaerobic digestion (TSAD); Hydrolytic-acidogenic stage; ORGANIC LOADING RATE; DAIRY WASTE-WATER; VEGETABLE WASTES; RETENTION TIME; SEWAGE-SLUDGE; SOLID CONTENT; ACID-PHASE; PH; ACIDIFICATION; FERMENTATION;

D O I：

10.1016/j.biortech.2009.04.001

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The influence of the hydraulic retention time (HRT) and organic loading rate (OLR) on the performance of the hydrolytic-acidogenic step of a two-stage anaerobic digestion process Of Sunflower oil cake (SuOC) were assessed. The experiments were performed in laboratory-scale completely stirred tank reactors at mesophilic (35 degrees C) temperature. Six OLR (ranging from 4 to 9 g VS L-1 d(-1)) for four HRTs (8, 10, 12 and 15 days) were tested to check the effect of each operational variable. Based on the results obtained, it can be concluded that the hydrolysis yields obtained for all HRTs and OLRs assayed were in the range of 20.5-30.1%. In addition, the acidification degree of the substrate was mainly influenced by the OLR but not by the HRTs, the highest value (83.8%) being achieved for an HRT of 10 days and an OLR of 6 g VS L-1 d(-1). (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：4133 / 4138

页数：6

共 34 条

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