Pretreatment of paper tube residuals for improved biogas production
Artikel i vetenskaplig tidskrift, 2010

Paper tube residuals, which are lignocellulosic wastes, have been studied as substrate for biogas (methane) production. Steam explosion and nonexplosive hydrothermal pretreatment, in combination with sodium hydroxide and/or hydrogen peroxide, have been used to improve the biogas production. The treatment conditions of temperature, time and addition of NaOH and H2O2 were statistically evaluated for methane production. Explosive pretreatment was more successful than the nonexplosive method, and gave the best results at 220 degrees C, 10 min, with addition of both 2% NaOH and 2% H2O2. Digestion of the pretreated materials at these conditions yielded 493 N ml/g VS methane which was 107% more than the untreated materials. In addition, the initial digestion rate was improved by 132% compared to the untreated samples. The addition of NaOH was, besides the explosion effect, the most important factor to improve the biogas production.

Methane

Biogas

Lignocellulose

Pretreatment

Steam explosion

Författare

Anna Teghammar

Chalmers, Kemi- och bioteknik

J. Yngvesson

Högskolan i Borås

M. Lundin

Högskolan i Borås

Mohammad Taherzadeh Esfahani

Högskolan i Borås

I. S. Horvath

Högskolan i Borås

Bioresource Technology

0960-8524 (ISSN) 1873-2976 (eISSN)

Vol. 101 4 1206-1212

Ämneskategorier

Industriell bioteknik

DOI

10.1016/j.biortech.2009.09.029

Mer information

Senast uppdaterat

2018-03-08