Effect of multiple product extractions on bio-methane potential of marine macrophytic green alga Ulva lactuca

Apurv Mhatre, Suhas Gore, Akanksha Mhatre, Nitin Trivedi, Manju Sharma, Reena Pandit, Annamma Anil and Arvind Lali

Renewable Energy, 2019, vol. 132, issue C, 742-751

Abstract: Biomethane Potential (BMP) of green macroalga Ulva lactuca post extraction of sap, ulvan and protein was analysed in batch studies. Extraction was performed in two different ways (individual and sequential) to understand the effect of removal of these components on methane yields. Both the treatments resulted in enhanced biomethane production in most of the treated residues, however, the highest methane yield of 408 ± 20.02 ml CH4 g−1 VS (70.93% of theoretical) was observed in sap and ulvan removed residue (batch VI). The methane production rates improved after both the treatments (0.15–0.28 day−1 for untreated and treated batches). This corroborates well with the fact that high protein and sulphate content are major inhibitors in anaerobic digestion (AD) of U. lactuca and their removal leads to improved methane yields. Sequential extraction of value-added products prior to the AD process not only improves biomass amenability and respective methane yields but also makes the overall process more efficient and viable.

Keywords: Anaerobic digestion; Biomethane potential; Macroalgae; Ulva sp.; Sequential extraction (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148118309571
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:132:y:2019:i:c:p:742-751

DOI: 10.1016/j.renene.2018.08.012

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().