Browsing by Author "Khan, Shoyeb"
Now showing items 1-20 of 25
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A comparative physicochemical property assessment and techno-economic analysis of biolubricants produced using chemical modification and additive-based routes
( Elsevier , 2022 , Article)Several edible and non-edible oil sources are currently being developed as renewable basestocks for biolubricant production. However, these feedstocks possess undesirable physicochemical properties limiting their lubricant ... -
A feasibility study of utilizing hydrothermal liquefaction derived aqueous phase as nutrients for semi-continuous cultivation of Tetraselmis sp.
( Elsevier Ltd , 2020 , Article)The feasibility of substituting 50% nutrients by aqueous phase liquid (APL), derived from hydrothermal liquefaction of Tetraselmis sp. biomass, in a semi-continuous cultivation of Tetraselmis sp. was studied. Growth ... -
Application note—A novel, low-cost pH-controlled solenoid-based CO2 dosing device for microalgal and cyanobacterial cultivation systems
( Elsevier B.V. , 2024 , Article)This application note proposes a novel, low-cost, pH-controlled solenoid-based CO2 dosing device for microalgal and cyanobacterial cultivation systems. The device consists of an Arduino-Uno microcontroller, a (ph-4502c) ... -
Aquaculture from inland fish cultivation to wastewater treatment: a review
( Springer Nature , 2023 , Article)The aquaculture industry is rapidly developing, generating a high amount of wastewater. Inland aquaculture effluents contain nutrients and other substances that can cause eutrophication and the emergence of resistive ... -
Biocrude oil production from a self-settling marine cyanobacterium, Chroococcidiopsis sp., using a biorefinery approach
( Elsevier , 2023 , Article)Although the whole microalgal biomass is typically used as a feedstock for hydrothermal liquefaction (HTL), the conversion of a primary metabolite (i.e., carbohydrate) to biocrude is very low. In this study, a self-settling ... -
Biolubricant Synthesis by Additization and Chemical Modification from Lipid-Rich Brackish Coelastrella sp. Using a Biorefinery Approach
( American Chemical Society , 2023 , Article)With a sizable market share and widespread use in automotive and industrial applications, biolubricants are produced from the oils of terrestrial plants that have undergone chemical modification or additive addition. ... -
A comparison of bio-crude oil production from five marine microalgae – Using life cycle analysis
( Elsevier , 2022 , Article)Marine microalgae biomass could offer a viable feedstock for sustainably producing biofuel by hydrothermal liquefaction. In this study, five promising marine microalgae (i.e., Tetraselmis, Picochlorum, Synechococcus, ... -
Comparison of dual stage ultrafiltration and hybrid ultrafiltration-forward osmosis process for harvesting microalgae (Tetraselmis sp.) biomass
( Elsevier , 2020 , Article)In this study, a hybrid ultrafiltration-forward osmosis system was compared with a dual stage ultrafiltration process for the harvesting of marine microalgae. To the best of the author's knowledge none of the previous ... -
A comprehensive review on versatile microalga Tetraselmis: Potentials applications in wastewater remediation and bulk chemical production
( Academic Press , 2024 , Article)Microalgae are considered sustainable resources for the production of biofuel, feed, and bioactive compounds. Among various microalgal genera, the Tetraselmis genus, containing predominantly marine microalgal species with ... -
Corrigendum to "Microalgae: A potential bioagent for treatment of emerging contaminants from domestic wastewater" [Chemosphere 351, March 2024, 1-16 141245] (Chemosphere (2024) 351, (S0045653524001383), (10.1016/j.chemosphere.2024.141245))
( Elsevier , 2024 , Article)Authors would like an amendment in the Acknowledgement section as per our open access funder policies. Kindly add the below statement in acknowledgement section. <Acknowledgement: The authors would like to acknowledge the ... -
Economically viable marine algae-based fish feed production in Qatar
( Elsevier , 2026 , Article)Expanding sustainable aquaculture is crucial for meeting the growing demand for fish and ensuring global food security. This study explored the technical feasibility and economic viability of locally grown marine or brackish ... -
Effect of ethylene-vinyl acetate copolymer on kinematic viscosity and thermal stability of jojoba, date seed, and waste cooking oils in lubricant applications
( Springer Science and Business Media Deutschland GmbH , 2022 , Article)Vegetable oils possess excellent lubricant properties, but one reason limiting their application as lubricants is their low kinematic viscosity. This study investigated how the addition of ethylene-vinyl acetate copolymer ... -
Effect of harvesting methods on the energy requirement of Tetraselmis sp. biomass production and biocrude yield and quality
( Elsevier Ltd , 2019 , Article)A halo-tolerant Tetraselmis sp. was grown in a 100,000 L raceway pond in the Qatari desert environment. As the biomass density reached 0.679 g/L, after 7 days, five different harvesting methods (i.e., cross-flow filtration, ... -
Energy recovery and nutrients recycling from municipal sewage sludge
( Elsevier , 2020 , Article)Hydrothermal Liquefaction (HTL) could be a promising and better alternative to other techniques for energy recovery from municipal sewage sludge (MSS). However, the nutrients (i.e., N, and P) recovery potential from the ... -
Microalgae: A potential bioagent for treatment of emerging contaminants from domestic wastewater
( Elsevier , 2024 , Article)Water crisis around the world leads to a growing interest in emerging contaminants (ECs) that can affect human health and the environment. Research showed that thousands of compounds from domestic consumers, such as endocrine ... -
Microalgal bioremediation of brackish aquaculture wastewater
( Elsevier , 2023 , Article)Rapid aquaculture industry development contributed to a major increase in aquaculture wastewater generation. In the context of a circular economy, aquaculture wastewater treatment should simultaneously recover nutrients ... -
Outdoor semi-continuous cultivation of Synechococcus sp. for enhanced carotenoid production
( Elsevier B.V. , 2024 , Article)The carotenoid productivity of a euryhaline Synechococcus sp. was studied in indoor and outdoor conditions. Indoor experiments revealed that the strain could maintain growth and carotenoid accumulation within a salinity ... -
Pilot-scale crossflow ultrafiltration of four different cell-sized marine microalgae to assess the ultrafiltration performance and energy requirements
( Elsevier , 2023 , Article)Four marine microalgae (e.g., Tetraselmis, Picochlorum, Dunaliella, and Synechococcus) with different cell sizes were harvested using pilot-scale ultrafiltration. Average permeate fluxes were 16.75, 19, 25.35, and 33.75 ... -
The Potential of Marine Microalgae for the Production of Food, Feed, and Fuel (3F)
( Multidisciplinary Digital Publishing Institute (MDPI) , 2022 , Article)Whole-cell microalgae biomass and their specific metabolites are excellent sources of renewable and alternative feedstock for various products. In most cases, the content and quality of whole-cell biomass or specific ... -
Pretreatment of cyanobacterial Chroococcidiopsis. biomass prior to hydrothermal liquefaction for enhanced hydrocarbon yield and energy recovery
( Qatar University Press , 2020 , Poster)Chroococcidiopsis sp. was grown in 200 L open raceway pond. Biomass density and average biomass productivity were 0.41 g/L and 16.1 g/m2/d. Chroococcidiopsis biomass was harvested by self-settling. Self settled biomass was ...
