A5022833711- Thermochemical Biomass Conversion Processes
- Recycling and utilization of industrial and municipal waste in materials production
- Lignin and Wood Chemistry
- Recycling and Waste Management Techniques
- Thermal and Kinetic Analysis
- Biodiesel Production and Applications
- Coal Combustion and Slurry Processing
- Adsorption and biosorption for pollutant removal
- Extraction and Separation Processes
- Materials Engineering and Processing
- Coal and Its By-products
- Environmental Impact and Sustainability
- Municipal Solid Waste Management
- Catalysis and Hydrodesulfurization Studies
- Polymer crystallization and properties
- Photovoltaic Systems and Sustainability
- Recycled Aggregate Concrete Performance
- Catalytic Processes in Materials Science
- Covalent Organic Framework Applications
- Fire dynamics and safety research
- Statistical Methods in Clinical Trials
- Flame retardant materials and properties
- Sensory Analysis and Statistical Methods
- Subcritical and Supercritical Water Processes
- Catalysis and Oxidation Reactions
National University of Singapore
2003-2018
University of Nottingham Ningbo China
2013-2014
Hydrochars derived from macroalgae Sargassum horneri were characterized physically and chemically to elucidate their potential as a valuable resource. prepared by hydrothermal carbonization (HTC) of at temperatures 180–210 °C with citric acid. The hydrochars found form mainly through dehydration reaction pathway had carbon contents 36.8–50.5% higher heating values 19.0–25.1 MJ kg–1. BET surface area remained low, in the range 0.6–31.8 m2 g–1. On basis Taguchi's experimental design,...
Hydrothermally upgraded chars with improved density and friable characteristics were produced from oil-palm empty fruit bunch (EFB) at three temperatures (150, 250, 350 °C—denoted as H-150, H-250 H-350). These co-combusted low rank Indonesian coal hydrothermally (HT-coal). The composition of major gaseous pollutants released the co-combustion process specific reference to CO, CO2, CH4, NO, SO2 was studied in real-time using a thermogravimetric analyzer coupled Fourier transform infrared...
It is generally known that the solid char obtained from pyrolysis of scrap rubber tires can be used as an adsorbent for several applications such wastewater treatment. In this study, were first pyrolyzed under nitrogen (N2) or carbon dioxide (CO2) gas various temperatures to produce char. The was activated in situ by post-pyrolysis oxygenation (PPO) at different temperature ranges soon process completed. Elemental and spectroscopic analyses showed significant zinc content after PPO....
A green strategy has been proposed by stabilising incineration bottom ash (IBA) waste and marine clay (MC) as land reclamation material, termed MC-IBA matrix. However, the reuse of IBA may increase potential threats to environment since contains heavy metals. Heavy metal leaching depends on interplay various physical chemical factors such size, shape porosity particles, temperature, pH, aging degradation material control mechanism so on. In this paper, process against pH time was studied a...
Bottom ash from municipal solid waste incineration plants represents an untapped resource in many countries. This paper examines both heavy metal leaching and undrained shear strength of using Singapore’s local bottom (IBA) as land reclamation material. The IBA was mixed various proportions (0–30%) with Singapore marine clay (MC) additive binder. resultant materials were named MC-IBA matrices tested for leached seawater ethanoic acid separate tests to simulate possible scenarios the...
The use of incineration bottom ash (IBA) for practical applications requires overcoming the environmental impacts from its use. As IBA contains numerous potential pollutants, especially heavy metals, would expose surrounding environment to risks metal pollution. One possible, way overcome problem is pre-treat through washing with naturally collected waters like rain and seawater. Repeated fresh batches or seawater each week over fifteen weeks could reduce content by 6-7%. final...
This study showed that copper(II) can be removed from aqueous solution by activated pyrolytic tire char in three mechanistically distinct ways. On the basis of equilibrium studies, mechanisms involved adsorptive removal copper(II), namely, precipitation, surface adsorption, and pore diffusion, were elucidated. Precipitation resulted changes pH to neutral levels. was attributed amphoteric zinc oxide on surface, formed during production char. Surface adsorption revealed X-ray photoelectron...
A novel method is presented for pyrolyzing and activating waste tires adsorptive removal of aqueous contaminants. The adsorption characteristics a cationic dye (methylene blue, MB) by pyrolytic tire char were evaluated. Mechanistic insights into the MB onto made from pyrolyzed are discussed on basis equilibrium kinetic studies. comparative evaluation performance unoxygenated, chars (NoPPO) oxygenated (P550250) reported. Despite having similar surface areas between unxoygenated chars,...
Abstract Pairwise comparison procedures are frequently applied to analyze experimental results. In particular, practitioners in the area of medical researches often encounter situations which require these statistical techniques compare various treatments. this article, we focus on pairwise a two‐factor design, where comparisons one factor made simultaneously for each level another factor. For example, several new drugs treat certain cancer being compared both male and female patients....