تصفح حسب المؤلف "Khan, Shoyeb"
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A comparative physicochemical property assessment and techno-economic analysis of biolubricants produced using chemical modification and additive-based routes
Khan, Shoyeb; Das, Probir; Quadir, Mohammed Abdul; Thaher, Mahmoud; Annamalai, Senthil Nagappan; Mahata, Chandan; Hawari, Alaa H.; Al Jabri, Hareb... more authors ... less authors ( 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.
Das, Probir; AbdulQuadir, Mohammad; Thaher, Mahmoud; Khan, Shoyeb; Chaudhary, Afeefa Kiran; Al-Jabri, Hareb... more authors ... less authors ( 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
Khan, Shoyeb; Das, Probir; Thaher, Mahmoud; Abdulquadir, Mohammed; Faisal, Mohamed; Hawari, Alaa H.; Al-Jabri, Hareb... more authors ... less authors ( 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
Kashem, Abdurahman Hafez Mohammed; Das, Probir; Hawari, Alaa H.; Mehariya, Sanjeet; Thaher, Mahmoud Ibrahim; Khan, Shoyeb; Abduquadir, Mohamamed; Al-Jabri, Hareb... more authors ... less authors ( 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
Das, Probir; Khan, Shoyeb; AbdulQuadir, Mohammed; Thaher, Mahmoud Ibrahim; Hawari, Alaa H.; Alshamri, Noora; AlGhasal, Ghamza; Al-Jabri, Hareb M.J.... more authors ... less authors ( 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 ... -
A comparison of bio-crude oil production from five marine microalgae – Using life cycle analysis
Hareb, Al-Jabri; Das, Probir; Khan, Shoyeb; AbdulQuadir, Mohammad; Thaher, Mehmoud Ibrahim; Hoekman, Kent; Hawari, Alaa H.... more authors ... less authors ( 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
Hafiz, Mhd Ammar; Hawari, Alaa H.; Das, Probir; Khan, Shoyeb; Altaee, Ali ( 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 ... -
Effect of ethylene-vinyl acetate copolymer on kinematic viscosity and thermal stability of jojoba, date seed, and waste cooking oils in lubricant applications
Al Jabri, Hareb; Khan, Shoyeb; Das, Probir; Thaher, Mahmoud Ibrahim; Quadir, Mohammed Abdul ( 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
Das, Probir; Khan, Shoyeb; Thaher, Mahmoud; AbdulQuadir, Mohammed; Hoekman, S. Kent; Al-Jabri, Hareb... more authors ... less authors ( 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
Das, Probir; Khan, Shoyeb; AbdulQuadir, Mohammed; Thaher, Mahmoud; Waqas, Muhammad; Easa, Ahmed; Attia, Essam Shabaan Mohamed; Al-Jabri, Hareb... more authors ... less authors ( 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 ... -
Microalgal bioremediation of brackish aquaculture wastewater
Kashem, Abdurahman Hafez Mohammed; Das, Probir; AbdulQuadir, Mohammad; Khan, Shoyeb; Thaher, Mahmoud Ibrahim; Alghasal, Ghamza; Hawari, Alaa H.; Al-Jabri, Hareb... more authors ... less authors ( 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 ... -
Pilot-scale crossflow ultrafiltration of four different cell-sized marine microalgae to assess the ultrafiltration performance and energy requirements
Khan, Shoyeb; Das, Probir; Abdulquadir, Mohammed; Thaher, Mahmoud; Al-Ghasal, Ghamza; Hafez Mohammed Kashem, Abdurahman; Faisal, Mohamed; Sayadi, Sami; Al-Jabri, Hareb... more authors ... less authors ( 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)
Mahata, Chandan; Das, Probir; Khan, Shoyeb; Thaher, Mahmoud I.A.; Abdul Quadir, Mohammed; Annamalai, Senthil Nagappan; Al Jabri, Hareb... more authors ... less authors ( 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
khan, Shoyeb; Das, Probir; Abdul Quadir, Mohammed; Thaher, Mahmoud; Al Jabri, Hareb ( 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 ... -
Production of phycocyanin from marine cyanobacteria in Open raceway pond
Abdul Quadir, Mohammed; Das, Probir; khan, Shoyeb; Thaher, Mahmoud; Al Jabri, Hareb ( Qatar University Press , 2020 , Poster)Phycocyanin is one of the major light harvesting accessory pigment present in microalgae and cyanobacteria. This water-soluble pigment protein exhibits antioxidant, anti-inflammatory, and neuroprotective effects. Application ... -
A study to investigate the energy recovery potential from different macromolecules of a low-lipid marine Tetraselmis sp. biomass through HTL process
Aljabri, Hareb; Das, Probir; Khan, Shoyeb; AbdulQuadir, Mohammad; Thaher, Mahmoud; Hawari, Alaa H.; Al-Shamary, Noora Mahmoud... more authors ... less authors ( Elsevier , 2022 , Article)This study investigated the hydrothermal liquefaction (HTL) of extracted major macromolecules from Tetraselmis sp. biomass. The carbohydrate fraction was first recovered from Tetraselmis biomass using pressurized heated ... -
Utilization of nitrogen-rich agricultural waste streams by microalgae for the production of protein and value-added compounds
Khan, Shoyeb; Das, Probir; Thaher, Mahmoud Ibrahim; AbdulQuadir, Mohammed; Mahata, Chandan; Al Jabri, Hareb... more authors ... less authors ( Elsevier B.V. , 2023 , Article)Current food and feed production practices via agricultural processes generate waste streams often rich in nitrogen. Conversion of the nitrogen in agricultural waste into valuable products would prevent environmental ...