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13 articles for “anaerobic fermentation”
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Research ArticleOpen accessPhrase in the titleAnaerobic Fermentation for Ceftriaxone Sodium Degradation in Excess Sludge: pH-Dependent Performance, Metabolite Formation, and Microbial Community DynamicsWeiwei Li, Hong Niu, Yonghui Zhang et al.The accumulation of ceftriaxone sodium (CTX), a third-generation cephalosporin antibiotic, in wastewater and sludge poses significant environmental and health risks, necessitating effective degradation strategies. This study investigated anaerobic fermentation of excess sludge (12,000-14,000 mg/L) spiked with 15 mg/L CTX under varying pH conditions (4, 7, 10, 12) to evaluate sludge reduction, metabolite formation, and microbial community dynamics. Results demonstrated that … …American Journal of Biochemistry and Biotechnology, Vol. 22, Issue 2 · 31 Jul 2026 · 857 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleAN IN-HOUSE COMPUTER-BASED DATA ACQUISITION AND CONTROL SYSTEM FOR ANAEROBIC FERMENTATION PROCESSESE. A. Echiegu, A. E. GhalyA computer-based Data Acquisition and Control System (DACS) capable of monitoring the temperature, pH and gas production as well as maintaining a pre-determined temperature profile and feeding regime in anaerobic reactors was developed and tested. The hardware for the DACS was a series-based system consisting of a host processor which drives three modules-a digital input mode (MODULE 255), an analog … …American Journal of Engineering and Applied Sciences, Vol. 7, Issue 3 · 17 Nov 2014 · 6,907 accessesView PDFCite
Review ArticleOpen accessPhrase in the titleKinetic Models for Anaerobic Fermentation Processes-A ReviewEmmanuel Amagu EchieguA review of basic kinetic models describing the generation of biomass and utilization of substrates in anaerobic fermentation processes is presented as well as the stoichiometric and empirical models for the prediction of biogas production. The applications of these models to anaerobic reactor systems such as the CSTR, activated sludge, plug flow reactor, etc are also presented. These models are … …American Journal of Biochemistry and Biotechnology, Vol. 11, Issue 3 · 24 Jul 2015 · 8,316 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleEfficient Anaerobic Fermentation of Simple Sugars by Yeast Fuels Resistance Candida spp. Infections to Eradication by DrugsNedosa Ikenna Valentine, Utoh-Nedosa Uchechukwu Anastasia, Dan Danjuma et al.Problem statement: Human systemic Candida infections had proved difficult to eradicate by the medical health care system. Some practitioners and scholars see the problem as being due to drug resistance. For example an author wrote that ‘secondary drug resistance is clearly being encountered in one setting, oropharyngeal candidiasis in patients with advanced Human Immunodeficiency Virus type 1 (HIV-1) infection usually … …American Journal of Infectious Diseases, Vol. 7, Issue 4 · 10 Dec 2011 · 7,836 accessesView PDFCite
Research ArticleOpen accessIn the keywordsNanowire Mediated Effect of Interspecies Electron Transfer in Organic Solid Waste Co-FermentationJingkang Chen, Daicheng Liu et al.Low efficiency of Interspecific Electron Transfer (IET) among microorganisms constrains organic matter degradation and biogas production in organic solid waste co‑fermentation. This work investigates the underlying bottleneck and evaluates the nanowire‑mediated enhancement of IET. Surface plasmon resonance‑enhanced electrochemical impedance spectroscopy coupled with metagenomic and metatranscriptomic sequencing was applied to regulate endogenous nanowire formation in anaerobic reactors. Surface Plasmon Resonance-Enhanced Electrochemical … …American Journal of Biochemistry and Biotechnology, Vol. 22, Issue 3 · 9 Oct 2026 · 591 accessesView PDFCite
Case ReportOpen accessIn the keywordsImpacts of Biogas Digestate on Crop Production and the Environment: A Bulgarian Case StudyNicholas Kathijotes, Vera Petrova, Elena Zlatareva et al.The water-energy nexus reveals that large amounts of energy is stored in used water and can be used as an energy source. Anaerobic fermentation is an excellent ecological waste treatment and a way of producing low cost electrical and thermal energy. By using digestate resulting from biogas production instead of synthetic fertilizers derived from natural gas, we can save energy, … …American Journal of Environmental Sciences, Vol. 11, Issue 2 · 29 May 2015 · 7,553 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA New Development in Biological Process for Wastewater Treatment to Produce Renewable FuelKadhum M. Shabeeb, Khalid A. Sukkar, Rana A. Azeez et al.Problem statement: Hydrogen is a clean energy source. Bio-conversion of biomass to generate hydrogen has been achieved using anaerobic fermentation of some well-defined materials, in wastewater. No data available on hydrogen yielded from wastewater using inoculum extracted from Iraqi municipal wastewater treatment plant. Approach: This study investigated the effects of substrate concentration, initial pH and process temperature on biohydrogen production … …American Journal of Applied Sciences, Vol. 7, Issue 10 · 31 Oct 2010 · 7,252 accessesView PDFCite
Research ArticleOpen accessIn the keywordsCarbon Dioxide Utilization for an Enhanced Biohydrogen Production of a Biomass HydrolysateAlma Negre Abug, Young Sook OhBio-hydrogen (H2) production in a thermophilic anaerobic bioreactor with carbon dioxide (CO2) utilization at the headspace was investigated at different ratio of Biomass substrate to Microorganism (B/M). A 3 mL volume of 80% NaOH (m/v) solution was continuously hung at the headspace of the bioreactors to capture carbon dioxide. The utilization of CO2 at its headspace, proved to enhance bio … …American Journal of Environmental Sciences, Vol. 12, Issue 4 · 9 Aug 2016 · 7,229 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEffect of Nitrogen Source and Carbon to Nitrogen Ratio on Hydrogen Production using C. acetobutylicumMohd Sahaid Kalil, Hisham Salem Alshiyab, Wan Mohtar Wan YusoffProblem statement: One of the main factors influenced the bacterial productivity and total yield of hydrogen is the nitrogen source and its concentration. Approach: Using different nitrogen source with different concentration on bacterial productivity of hydrogen showed to affect on both bacterial productivity of hydrogen and biomass concentration. Results: Yeast extract as nitrogen source at concentration of 13 g L-1 … …American Journal of Biochemistry and Biotechnology, Vol. 4, Issue 4 · 31 Dec 2009 · 7,837 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEffect of Environmental Parameters on hydrogen Production using Clostridium Saccharoperbutylacetonicum N1-4(ATCC 13564)Walid M. Alalayah, Mohd Sahaid Kalil, Abdul Amir H. Kadhum et al.Problem statement: Hydrogen gas production by Clostridium can be improved by several ways through media formulation, or suitable environment condition. This study was carried out to investigate the environmental factors effects on hydrogen production using Clostridium saccharoperbutylacetonicum N1-4 (ATCC 13564). Approach: The environmental factor studied includes initial substrate concentration, initial medium pH, temperature, sparging nitrogen and addition of Fe2+. Results: … …American Journal of Environmental Sciences, Vol. 5, Issue 1 · 28 Feb 2009 · 7,775 accessesView PDFCite