Influence of thermal and alkali pretreatment to solubilisation and biomethane production of garden waste

被引：4

作者：

Arici, Sefik ^{[1
]}

Ersoz, Ozben ^{[1
]}

Bayrakci, Asiye Gul ^{[1
]}

Eryasar, Ahmet ^{[1
]}

Kocar, Gunnur ^{[1
]}

机构：

[1] Ege Univ, Solar Energy Inst, TR-35100 Bornova, Turkey

来源：

INTERNATIONAL JOURNAL OF GLOBAL WARMING | 2015年 / 7卷 / 02期

关键词：

thermal pretreatment; alkali pretreatment; solubilisation; biochemical methane potential; BMP; garden waste; BIOGAS PRODUCTION; ANAEROBIC-DIGESTION; METHANE PRODUCTION; THERMOCHEMICAL PRETREATMENT; LIGNOCELLULOSIC BIOMASS; GRASS-SILAGE; ENERGY CROPS; BIODEGRADABILITY; SLUDGE; IMPROVEMENT;

D O I：

10.1504/IJGW.2015.067751

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The objectives of this study were to determine the effect of pretreatment to the garden wastes under thermal and alkali conditions and to evaluate biochemical methane potential. In thermal pretreatment different temperatures and application times were examined and solubilisation improved by heating. Soluble chemical oxygen demand (sCOD) concentration upgraded by increasing temperature with different time intervals. 90 degrees C and 2-hour pretreatment time enabled maximum solubilisation of COD for garden waste. For carbohydrate solubilisation, 50 degrees C and 8-hour application time showed the best performance. Alkali pretreatment also stimulated solubilisation of COD, carbohydrates and total nitrogen which concluded with biochemical methane potential tests. Alkali pretreatment (1% NaOH) increased the overall biomethane production by about 30% compared to the garden wastes without pretreatment. According to this study, the highest methane yield (397.7 ml/gVS) was obtained with 1% NaOH pretreatment to garden waste without pH adjustment.

引用

页码：242 / 255

页数：14

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