29 Result(s)
within
Gopalakrishnan Kumar
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Article
Open AccessA review on microbes mediated resource recovery and bioplastic (polyhydroxyalkanoates) production from wastewater
Plastic is widely utilized in packaging, frameworks, and as coverings material. Its overconsumption and slow degradation, pose threats to ecosystems due to its toxic effects. While polyhydroxyalkanoates (PHA) ...
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Advanced Thermochemical and Biochemical Processes for Biomass Transformation To Biofuels and Biochemicals
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Open AccessRecent advances in bio-based production of top platform chemical, succinic acid: an alternative to conventional chemistry
Succinic acid (SA) is one of the top platform chemicals with huge applications in diverse sectors. The presence of two carboxylic acid groups on the terminal carbon atoms makes SA a highly functional molecule ...
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Article
Thermochemical conversion routes of hydrogen production from organic biomass: processes, challenges and limitations
Hydrogen production from various organic biomass via thermochemical process is considered as a promising and economical viable technique. The advantages of this process are higher product yield and flexibility...
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Influence of dilute acid, alkali and hydrothermalpretreatments on methane improvement from datepalm waste “Takarboucht” cultivar
This research assesses the impacts of hydrothermal (120 °C for 30 min), dilute acid (2%(w/w) H2SO4 at 120 °C for 30 min) and alkali (6% (w/w) NaOH at 35 °C for 24 h)pretreatments on the methane yield from date pa...
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Macroalgae-derived biohydrogen production: biorefinery and circular bioeconomy
Algae is considered as a promising third-generation biofuel feedstock. Macroalgae is an efficient source of biomass for biohydrogen production. Biohydrogen (H2) is believed as a sustainable and clean energy carri...
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A review on enzymes and pathways for manufacturing polyhydroxybutyrate from lignocellulosic materials
Currently, major focus in the biopolymer field is being drawn on the exploitation of plant-based resources grounded on holistic sustainability trends to produce novel, affordable, biocompatible and environment...
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Article
Open AccessBioelectrochemical system-mediated waste valorization
Bioelectrochemical systems (BESs) are a new and emerging technology in the field of fermentation technology. Electrical energy was provided externally to the microbial electrolysis cells (MECs) to generate hyd...
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Article
Management of microbial enzymes for biofuels and biogas production by using metagenomic and genome editing approaches
Non-renewable fossil fuels such as bitumen, coal, natural gas, oil shale, and petroleum are depleting over the world owing to unrestricted consumption. Biofuels such as biodiesel, biobutanol, bioethanol, and b...
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Comparative Evaluation of CO2 Fixation of Microalgae Strains at Various CO2 Aeration Conditions
This study investigated microalgal CO2 fixation at the CO2 concentration ranging from 5 to 40% and the CO2 loading rate of 14.4 to 57.6 L/L-d. Chlorella sp. (AG10133) was selected as the optimal strain for CO2 fi...
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Biotechnological valorization of algal biomass: an overview
Algal biomass has significant advantages over terrestrial plants in terms of CO2 sequestration, biomass productivity, wastewater treatment along with multiple biobased products synthesis. Metabolic versatility an...
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Trends in Biological Nutrient Removal for the Treatment of Low Strength Organic Wastewaters
Recently, the quickly growing population living in urban location has caused numerous conflicts related to increase in water demand and water pollution. In urban areas, the surface water bodies allow runoffs a...
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Article
Spectral, In Vitro Biological, Engine and Emission Performances of Biodiesel Production from Chlorella protothecoides: A Sustainable Renewable Energy Source
In this research, microalgae species, Chlorella protothecoides was selected for biodiesel production due to its ability to produce large amount of hydrocarbons and oils with high lipid composition. The extracted ...
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Adsorption, degradation, and mineralization of emerging pollutants (pharmaceuticals and agrochemicals) by nanostructures: a comprehensive review
This review discusses a fresh pool of research findings reported on the multiple roles played by metal-based, magnetic, graphene-type, chitosan-derived, and sonicated nanoparticles in the treatment of pharmace...
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Article
Biodiesel Potentiality of Microalgae Species: evaluation Using Various Nitrogen Sources
The two fresh water microalgae species namely Scenedesmus dimorphus and Scenedesmus obliquus were selected as biomass feedstocks for biodiesel production due to high accumulation of their neutral lipid content wh...
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Resource recovery from wastewater, solid waste, and waste gas: engineering and management aspects
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Article
Comparative evaluation of biochemical methane potential of various types of Ugandan agricultural biomass following soaking aqueous ammonia pretreatment
The feasibility of pretreatment involving soaking in aqueous ammonia (SAA) for the anaerobic digestion (AD) of eight different types of agricultural biomass of Ugandan origin was investigated. Moderate pretrea...
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Article
Characterization of Hemp (Cannabis sativa L.) Biodiesel Blends with Euro Diesel, Butanol and Diethyl Ether Using FT-IR, UV–Vis, TGA and DSC Techniques
Blending biodiesel–diesel blends with alternative fuels such as butanol and diethyl ether becomes an interesting area of research. Butanol is becoming a popular fuel due to its renewable nature and superior pr...
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Article
Biogas Production from Organic Waste: Recent Progress and Perspectives
Anaerobic digestion (AD) from organic waste has gained worldwide attention in reducing greenhouse gas emissions, lowering fossil fuel combustion, and facilitating a sustainable renewable energy supply. Biogas ...
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Valorization of Waste Date Seeds for Green Carbon Catalysts and Biodiesel Synthesis
The decreasing availability of fossil fuels and environmental issues associated with their use has placed a greater emphasis on biofuels production as a competent alternative source to produce energy in the cu...
