Innovative approach for rapeseed straw recycling using black solider fly larvae: Towards enhanced energy recovery

Mahdy Elsayed, Wu Li, Nashwa S. Abdalla, Ping Ai, Yanlin Zhang and Abd El-Fatah Abomohra

Renewable Energy, 2022, vol. 188, issue C, 211-222

Abstract: The present study evaluated bio-recycling of rapeseed straw (RS) mixed in different ratios with chicken manure using black soldier fly larvae (BSFL) followed by biodiesel and protein production as an innovative waste management and biorefinery route. Among different treatments, 20% RS ratio showed high fiber biodegradation with enhanced larval biomass yield and lipid accumulation. The average larval development time on the chicken manure was 18.3 days, which significantly reduced to 14.0 days using 20% RS. In addition, application of 20% RS significantly enhanced the survival rate, with higher conversion efficiency comparing to the control. Interestingly, saturated fatty acids content of the produced biodiesel at 20% RS was much higher than that reported for the biodiesel produced currently from rapeseed oil, which resulted in higher cetane number. Based on the current biodiesel industry from rapeseed oil, 1 ha of rapeseed produces 4.2 tons of dry RS annually, that can be converted to 689.4 kg ha−1 of biodiesel using BSFL. In addition, the potential application of BSFL technology could reduce CO2 emissions by 10.42 tons ha−1. In conclusion, this study suggests BSFL as a promising mini-livestock for innovative RS management through indirect conversion of lignocelluloses into biodiesel.

Keywords: Biofuel; Insect biorefinery; Waste-to-Energy; Lignocellulose; Renewable energy (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148122001719
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:188:y:2022:i:c:p:211-222

DOI: 10.1016/j.renene.2022.02.029

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 ().