This study reveals the efficient treatment of high strength food waste under varying hydraulic retention times (48 h, 36 h and 24 h) in a continuous stirred tank reactor (CSTR) integrated with microbial electrolysis cell (MEC) to become a continuous stirred microbial electrolysis cell (CSMEC). COD removal efficiency in the CSMEC surpassed 92% with OLR ranging from 0.4 to 21.31 kg COD/m·d compared to that of the CSTR. The maximum current density (based on the cathode surface area) was 1125.35 ± 81 mA/m in the CSMEC. Biogas yield and methane production rates increased by 16.5% and 19.3% in the CSMEC respectively compared to the CSTR. CSMEC was 1.52 times better in performance compared to the CSTR. Firmicutes, Synergistetes, Bacteroidetes, Thermotogae, Chloroflexi and Proteobacteria were the dominant phyla associated with both CSMEC and CSTR. Archaeal microbial community analysis showed Methanosaeta, Methanobacterium, Methanosarcina and Methanocorpusculum as the dominant populations associated with the CSMEC.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.scitotenv.2020.143746 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Comparative study of conventional and process intensification by reactive distillation designs for glycerol carbonate production from glycerol and diethyl carbonate.
Sci Rep
January 2025
Bio-Circular-Green-Economy Technology and Engineering Center, BCGeTEC, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.
Glycerol carbonate (GC) can be produced from glycerol (GL), a low-value byproduct in the biodiesel industry. In this work, continuous processes of GC production via transesterification from crude GL and diethyl carbonate (DEC) were developed using Aspen Plus. Two cases were considered, and their process performances were compared.
View Article and Find Full Text PDFAlgal-bacterial bioremediation of cyanide-containing wastewater in a continuous stirred photobioreactor.
World J Microbiol Biotechnol
January 2025
The Biotechnology Center, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt.
This study reports the isolation and characterization of highly resistant bacterial and microalgal strains from an Egyptian wastewater treatment station to cyanide-containing compounds. The bacterial strain was identified as Bacillus licheniformis by 16S rRNA gene sequencing. The isolate removed up to 1 g L potassium cyanide, 3 g L benzonitrile, and 1 g L sodium salicylate when incubated as 10% v/v in MSM at 30 ℃.
View Article and Find Full Text PDFA comparative evaluation of dark fermentative bioreactor configurations for enhanced hydrogen production.
Environ Sci Pollut Res Int
January 2025
Viona Consulting Inc, Agro-Environmental Innovation and Technology, Research and Development Company, Thornhill, ON, L3T 0C6, Canada.
Energy from renewable resources has been growing in popularity, which ultimately helps reduce emissions of greenhouse gases (GHGs) and contaminants. Since hydrogen (H) has a higher combustion production of energy than hydrocarbon fuels, it has been identified as a clean, sustainable, and environmentally friendly energy source. There are several benefits to producing biohydrogen (bioH) from renewable sources, including lower cost and increased sustainability.
View Article and Find Full Text PDFThe present study demonstrates the significance of the C/N ratio and double helical ribbon (DHR) impeller in the anaerobic co-digestion (AnCo-D) of sugar refining process (SRP) effluent and molasses-based distillery spent wash (DSW) for improved biogas production. Both SRP & DSW were mixed in different percentages to achieve an optimum C/N ratio. Further biomethane potential analysis of mixed feeds with different C/N ratios was performed.
View Article and Find Full Text PDFUltrahigh concentration exfoliation and aqueous dispersion of few-layer graphene by excluded volume effect.
Nat Commun
December 2024
Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, Australia.
Colloidal properties of nanoparticles are intricately linked to their morphology. Traditionally, achieving high-concentration dispersions of two-dimensional (2D) nanosheets has proven challenging as they tend to agglomerate or re-stack under increased surface contact and Van der Waals attraction. Here, we unveil an excluded volume effect enabled by 2D morphology, which can be coupled with electrostatic repulsion to synthesize high-concentration aqueous graphene dispersions.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!