Innovative Biotechnological & Microbiological Strategies for Organic Waste Management
Deadline for manuscript submissions: 30 April 2024 | Viewed by 1644
Interests: waste management; anaerobic digestion; ammonia/greenhouse gas mitigation; biotechnologies
Special Issues, Collections and Topics in MDPI journals
Interests: solid waste biorefinery; sustainable landfill operations and reclamation; waste to energy; greenhouse gas mitigation; biofuels and bioproducts; Algal bioindustries
Special Issues, Collections and Topics in MDPI journals
Sustainability is a pressing demand of the century, and lately, has been a vital topic in global research and political agendas. Yet, concurrent boosting of ecological, economic and social goals continues to be enormously challenging. The concept of waste minimization and recycling are decades old, but often fail to ease the burden on natural resources. The water–food–energy nexus clearly has demonstrated that water, food and energy security are inextricably linked. Disruption of any one of them has repercussions on the others. Thus, the integration of clean technologies is essential to produce quality value-added bioproducts and strengthen its bioeconomy.
Cutting-edge (clean) technology is needed to: recover fertilizer nutrients, save energy, release clean water into the environment, reutilize all parts of the waste and capture new value. Furthermore, bio-based products from agricultural/municipal/industrial wastes, which have their origin as solar energy, can achieve a well-balanced C-cycle compared to fossil alternatives. Thus, the transition to a circular economy has enormous industrial potential and significant benefits for a sustainable environment and society. The principle of the circular economy thus complements the renewable character of the bioeconomy and facilitates C-recycling after efficient uses.
This Special Issue aims to bridge different streams of research ranging from life sciences (genomics), engineering and informatics to identifying biological (including microbial conversions) pathways for production of a range of value-added bioproducts, and compare them to all other current and expected options. This will yield us the coveted “Triple bottom line” outcomes: social, ecological and financial.
Dr. Rajinikanth Rajagopal
Dr. Parthiba Karthikeyan Obulisamy
Manuscript Submission Information
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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Bioengineering is an international peer-reviewed open access monthly journal published by MDPI.
Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.
- bio-refinery technologies
- CleanTech solutions in waste management
- resource recycling and conservation
- transformation of organics into bio-products
- circular economy in waste management
- microbial ecology and industrial bioprocess engineering
- technical, economic and legal barriers
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Title: Assessment of the feasibility of converting the liquid fraction separated from fruit and vegetable waste in a UASB reactor
Authors: Fabrice Tanguay-Rioux; Laurent Spreutels; Caroline Roy; Jean-Claude Frigon
Affiliation: NRC-CNRC EME
Abstract: Anaerobic digestion of food waste still faces important challenges despite its world-wide application. An important fraction of food waste is composed of organic material with a low hydrolysis rate and which is often not degraded in digesters. The introduction of this less hydrolysable fraction into anaerobic digesters requires a longer hydraulic residence time, and therefore leads to oversizing of the bioreactors. To overcome this problem, the conversion of the biodegradable liquid fraction from fruit and vegetable waste in an upflow anaerobic sludge blanket (UASB) bioreactor is proposed and demonstrated. The biodegradable fraction of the waste is concentrated in the liquid phase using a 2-stage screw press separation. Then, this liquid fraction is digested with a 3.5L UASB at high organic loading rate. A stable performance was observed up to an OLR of 12 g COD Lrx-1 d-1 with a specific methane production of 3 L CH4 Lrx-1 d-1 and a removal of 70% of the initial total COD. When compared to a continuously stirred tank reactor operated with the same feedstock, 62% of the methane production is achieved, but with an organic load 3 times higher. Globally, the scale up of this process could contribute to considerably reducing costs related to anaerobic digestion of food waste while reducing management efforts associated to digestate treatment.