RESEARCH ARTICLE
Use of Alkali-activated Aluminosilicatematerialto Enhancebiogas Production from Acidic Whey
K. Rugele1, 2, *, E. Skripsts1, L. Mezule1, P. Pitk3, D. Bajare4, T. Juhna1
Article Information
Identifiers and Pagination:
Year: 2015Volume: 9
First Page: 54
Last Page: 60
Publisher ID: TOBIOTJ-9-54
DOI: 10.2174/1874070701509010054
Article History:
Received Date: 22/07/2014Revision Received Date: 06/09/2014
Acceptance Date: 10/09/2014
Electronic publication date: 26/6/2015
Collection year: 2015
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
The effect of the addition of novel alkali-activated material (AAM) granules to provide additional buffering capacity, pH stability and increased methane yields in batch scale anaerobic digestion was investigated.The experiments were carried out with 20%, 30% and 40% of acidic whey in 500 ml batch reactors by a single addition of AAM granules (diameter from 2 to 8 mm) at 37 ± 0.5x00B0;C during 30 days. Presence of the AAM in the batch reactors allowedto maintain optimal pH, thus increasingthe yield and rate of methane formation from acid whey.