<script type="text/javascript">
<!--
document.write('<div id="oa_widget"></div>');
document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=undefined&type=result"></script>');
-->
</script>

COPY SCRIPT

For further information contact us at helpdesk@openaire.eu

Design of experiments to assess pre-treatment and co-digestion strategies that optimize biogas production from macroalgae Gracilaria vermiculophylla

descriptionPublicationkeyboard_double_arrow_right Article , Journal , Other literature type 01 Jun 2014 Portugal Publisher:Elsevier BVJournal:Bioresource Technology, volume 162, pages 323-330 (issn: 0960-8524,

Authors: Oliveira, J. V. M.; Alves, M. M.; Costa, J. C.;

doi: 10.1016/j.biortech.2014.03.155

pmid: 24762762

handle: 1822/31751

Design of experiments to assess pre-treatment and co-digestion strategies that optimize biogas production from macroalgae Gracilaria vermiculophylla

- Summary
- Subjects
- Metrics

Abstract

A design of experiments was applied to evaluate different strategies to enhance the methane yield of macroalgae Gracilaria vermiculophylla. Biochemical Methane Potential (BMP) of G. vermiculophylla after physical pre-treatment (washing and maceration) reached 481±9 L CH4 kg(-1) VS, corresponding to a methane yield of 79±2%. No significant effects were achieved in the BMP after thermochemical pre-treatment, although the seaweeds solubilisation increased up to 44%. Co-digestion with glycerol or sewage sludge has proved to be effective for increasing the methane production. Addition of 2% glycerol (w:w) increased the BMP by 18%, achieving almost complete methanation of the substrate (96±3%). Co-digestion of seaweed and secondary sludge (15:85%, TS/TS) increased the BMP by 25% (605±4 L CH4 kg(-1) VS) compared to the seaweed individual digestion.

Country

Portugal

Related Organizations

University of Minho
Portugal
University of Minho
Portugal
University of Minho
Portugal
Universidade do Minho Centro de Engenharia Biológica
Universidade do Minho Centro de Engenharia Biológica

Keywords

Biological Oxygen Demand Analysis, Glycerol, Science & Technology, Algae, Sewage, Temperature, Gracilaria sp., Pre-treatment, Seaweed, Water Purification, Biodegradation, Environmental, Biofuels, Anaerobiosis, Sewage sludge, Methane

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	58
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 10%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 10%