A5056303009- Ultrasound and Cavitation Phenomena
- Biofuel production and bioconversion
- Cavitation Phenomena in Pumps
- Electrohydrodynamics and Fluid Dynamics
- Advanced Photocatalysis Techniques
- Advanced oxidation water treatment
- Anaerobic Digestion and Biogas Production
- Microbial Metabolic Engineering and Bioproduction
- Coal Combustion and Slurry Processing
- TiO2 Photocatalysis and Solar Cells
- Water Treatment and Disinfection
- Magnetic and Electromagnetic Effects
- Advanced Cellulose Research Studies
- Biodiesel Production and Applications
- Nanomaterials for catalytic reactions
- Industrial Gas Emission Control
- Environmental and Industrial Safety
- Catalysis for Biomass Conversion
- Catalysis and Hydrodesulfurization Studies
- Hybrid Renewable Energy Systems
- Catalytic Processes in Materials Science
- Process Optimization and Integration
- Gas Sensing Nanomaterials and Sensors
- Electrocatalysts for Energy Conversion
- Microbial Community Ecology and Physiology
Queen's University Belfast
2016-2025
University of Bath
2022-2024
Centre for Sustainable Energy
2022-2023
University of South Wales
2022-2023
Sustainable Energy Systems (United Kingdom)
2023
Queens University
2019
University of Ulster
2019
Belfast City Hospital
2019
National University of Singapore
2012-2016
Ashok Leyland (India)
2014
Vortex based hydrodynamic cavitation and anaerobic digestion sugarcane bagasse biorefineries for revitalising the sugar industry.
Bread is the second most wasted food in UK with annual wastage of 292,000 tons. In present work, bread waste (BW) was utilized for fermentative production ethanol by Saccharomyces cerevisiae KL17. Acidic and enzymatic saccharification BW carried out resulting highest glucose release 75 97.9 g/L which 73.5 95.9% theoretical yield, respectively. The obtained sugars were fermented into initially shake flask followed scale up bioreactor batch fed-batch mode. mode cultivation, maximum titers...
We have developed artificial neural network (ANN) based models for simulating two application examples of hydrodynamic cavitation (HC) namely, biomass pre-treatment to enhance biogas and degradation organic pollutants in water. The first case reports data on influence number passes through HC reactor bio-methane generation from bagasse. second scale dichloroaniline (DCA). Similar most the applications, availability experimental these applications is rather limited. In this work a systematic...
Hydrodynamic cavitation (HC) is being increasingly used in a wide range of applications. Unlike ultrasonic cavitation, HC scalable and has been at large scale industrial However, no information about influence on performance available the open literature. In this work, we present for first time, experimental data use degradation complex organic pollutants water four different scales (~200 times scale-up terms capacity). Vortex based devices offer various advantages like early inception, high...
Utilising ‘wastes’ as ‘resources’ is key to a circular economy. While there are multiple routes waste valorisation, anaerobic digestion (AD)—a biochemical means breakdown organic wastes in the absence of oxygen—is favoured due its capacity handle variety feedstocks. Traditional AD focuses on production biogas and fertiliser products; however, such low-value products combined with longer residence times slow kinetics have paved way explore alternative product platforms. The intermediate steps...
Green hydrogen—a carbon-free renewable fuel—has the capability to decarbonise a variety of sectors. The generation green hydrogen is currently restricted water electrolysers. use freshwater resources and critical raw materials, however, limits their use. Alternative splitting methods for via photocatalysis photoelectrocatalysis (PEC) have been explored in past few decades; commercial potential still remains unexploited due high costs. Novel PEC-based simultaneous wastewater...
Photoelectrocatalysis is one of the most favourable techniques that could be used in this remit as it has potential to utilise natural sunlight generate oxidants situ mediate effective pollutant degradation. This work, therefore, utilises a mesoporous nanoscale WO3/BiVO4 heterostructure photoanode effectively degrade ibuprofen wastewater combined with simultaneous green hydrogen generation at cathode under simulated sunlight. A near complete degradation (>96%) (starting concentration 100...
Phenols are recalcitrant compounds that constitute the majority of organic contaminants in industrial wastewaters. Their removal at large scales require a combination various processes to reach desired discharge quality. An extensive body work has already been published area phenol from wastewater, however none them have focussed on truly 'sensible' approach for coupling advanced oxidation (AOPs). Rather, higher efficiency was targeted by unduly complicating process combining multiple AOPs....
Hydrodynamic cavitation is being increasingly pursued for the development of an intensified and compact wastewater-treatment process. Experimental data on degradation water contaminated with three commonly used solvents (acetone; ethyl acetate, EA; isopropyl alcohol, IPA) using vortex-based devices are presented. The influence operating flow or pressure drop across (150 to 300 kPa), temperatures (20 45 °C), concentrations pollutant (1000 50 000 ppm), scales reactor (with a scaling-up factor...
This work demonstrates a two-step gram-scale synthesis of presynthesized silver (Ag) nanoparticles impregnated with mesoporous TiO2 and evaluates their feasibility for wastewater treatment hydrogen gas generation under natural sunlight. Paracetamol was chosen as the model pharmaceutical pollutant evaluating photocatalytic performance. A systematic material analysis (morphology, chemical environment, optical bandgap energy) Ag/TiO2 photocatalyst powder carried out, influence properties on...
The toxic nature of inorganic nanostructured materials as photocatalysts is often not accounted for in traditional wastewater treatment reactions. Particularly, some nanomaterials employed may release secondary pollutants the form ionic species that leach out due to photocorrosion. In this context, work a proof-of-concept study exploring environmental toxicity effect extremely small-sized nanoparticles (<10 nm) like quantum dots (QDs) are photocatalysts, and study, cadmium sulfide (CdS) QDs...
Lignocellulosic biomass (LCB) is an abundant renewable resource that can be used to produce fuels and chemicals. Valorization of LCB is, however, a challenge due its recalcitrant nature posed by the strongly interlinked cellulose–lignin–hemicellulose structures. A range physicochemical biological pretreatment methods has been reported in literature for enhancing bioutilization. In this work, we hydrodynamic cavitation (HC) based on vortex devices as chemical-free, environmentally friendly...
Diazotrophs in the mangrove rhizosphere play a major role providing new nitrogen to ecosystem and their composition activity are strongly influenced by anthropogenic ecological conditions. In this study, diversity of diazotroph communities sediment five tropical sites with different levels pollution along north south coastline Singapore were studied pyrosequencing nifH gene. Bioinformatics analysis revealed that all locations, comprised mainly members diazotrophic cluster I III. The detected...
It is essential to valorize waste biomass and promote a circular economy for realizing sustainability decarbonization goals. In this review, we specifically focus on anaerobic digestion (AD) intensified via hydrodynamic cavitation (HC) modeling as an effective valorization strategy. AD known generate renewable energy (biogas) fertilizer (digestate) therefore aligned with the framework has potential decarbonize transportation, energy, heat sectors, which contribute major share current global...
Hydrodynamic cavitation (HC) has been extensively investigated for effluent treatment applications. Performance of HC devices or processes is often reported in terms degradation organic pollutants rather than quantification hydroxyl (OH) radicals. In this study, generation OH radicals vortex based device using coumarin dosimetry was quantified. Coumarin used as the chemical probe with an initial concentration 100 µM (15 ppm). Generation quantified by analysing generated single hydroxylated...