Browsing by Author "Das, Probir"
Now showing items 1-20 of 32
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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 comparative study of the growth of Tetraselmis sp. in large scale fixed depth and decreasing depth raceway ponds
( Elsevier Ltd , 2016 , Article)In this study, an alternative approach was proposed where excess seawater would be added only during inoculation (DD) rather than daily addition (FD). Growth and metabolite contents of Tetraselmis sp. weren't affected for ... -
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 ... -
A novel electrocoagulation electrode configuration for the removal of total organic carbon from primary treated municipal wastewater
( Springer , 2020 , Article)In this paper, the removal of total organic carbon (TOC) from a primary treated municipal wastewater using a new electrode configuration in electrocoagulation was evaluated. The used electrode configuration induces a ... -
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 ... -
Circular Economy in Basic Supply: Framing the Approach for the Water and Food Sectors of the Gulf Cooperation Council Countries
( Elsevier , 2021 , Article)The circular economy concept can enhance sustainability through restructuring consumption and production patterns using innovative designs and business models. This core premise is highly relevant for the interlinked water ... -
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 ... -
Determination of Optimum Iron Requirement for Production of Microalgae Biomass as Biofuel Feedstock
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Microalgae biomass is considered as one of the promising alternative feedstock for biofuel production. The biomass productivity of some of the microalgae can exceed an order of magnitude compared to any other terrestrial ... -
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, ... -
Effect of the induced dielectrophoretic force on harvesting of marine microalgae (Tetraselmis sp.) in electrocoagulation
( Elsevier , 2020 , Article)In this study, a new electrocoagulation electrode configuration has been investigated in order to induce dielectrophoretic (DEP) force for the enhanced harvesting of marine microalgae (Tetraselmis sp.). Asymmetrical aluminum ... -
Efficient extraction of lipids from microalgal biomass for the production of biofuels using low-cost protic ionic solvents
( Elsevier , 2023 , Article)The valorization of lipids available in microalgal biomass supports the indispensable transition from fossil fuels to renewable energy systems such as biofuels. Ionic liquids have been long investigated for the effective ... -
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 ... -
Enhancing the electrocoagulation process for harvesting marine microalgae (Tetraselmis sp.) using interdigitated electrodes
( Elsevier , 2021 , Article)Marketable value of algal biomass has been increasing in recent years due to its wide range of applications. This study investigates the performance of a novel cylindrical interdigitated electrode array in electrocoagulation ... -
Haematococcus pluvialis Microalgae Extract Inhibits Proliferation, Invasion, and Induces Apoptosis in Breast Cancer Cells
( Frontiers Media S.A. , 2022 , Article)Breast cancer (BC) is the most common malignant cancer in females worldwide. Drug resistance, toxicity, and the failure of current therapies to completely cure BC has challenged conventional medicine. Consequently, ... -
Harvesting of Chlorella sp. microalgae by dielectrophoretic force using titanium dioxide (TiO2) insulated electrodes
( Elsevier , 2022 , Article)The harvesting of microalgae using conventional technologies suffers from biomass contamination, high energy consumption and long processing time. In this study, titanium dioxide insulated stainless steel electrodes were ... -
Industrial sludge valorization and decontamination via lipid extraction and heavy metals removal using low-cost protic ionic liquid
( Elsevier , 2022 , Article)Sludge is a heterogenous organic-rich matter that comprise of highly valuable biopolymers along with various contaminants including heavy metals. Sludge valorization as a renewable resource and inexpensive feedstock is key ... -
Microalgae biomass production in municipal wastewater and use of the produced biomass as sustainable biofertilizer
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Due to the lack of natural water sources, and cost and environmental issues associated with water desalination, Qatar currently emphasizes on the reuse of current wastewater sources, which includes conventional and ... -
Microalgae harvesting by pH adjusted coagulation-flocculation, recycling of the coagulant and the growth media
( Elsevier Ltd , 2016 , Article)Coagulation-flocculation can be considered as one of the least energy intensive microalgae biomass harvesting processes. However, cost of the coagulant and biomass contamination are two critical issues that need to be ...
