Chew Tin Lee

Chew Tin Lee
Universiti Teknologi Malaysia | UTM · Faculty of Chemical Engineering (FChE)

University of Cambridge, PhD Biochemical Engineering

About

179
Publications
110,316
Reads
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4,136
Citations
Additional affiliations
September 1996 - present
Universiti Teknologi Malaysia
Position
  • Professor (Associate)
Description
  • Teaching: Chemical Reaction Engineering Research: Microbial Technology for Composting Administrative Role: Global Alliance Manager for Europe and America

Publications

Publications (179)
Article
Magnetic coagulation is a promising approach for treating high phosphorous (high-P) wastewater by enhancing precipitation efficiency using magnetic particles. In this study, a cost-effective and environmentally friendly magnetic seed from coal fly ash (MS-CFA) was used as an alternative material for Fe3O4 magnetic seed (MS) coagulation. The potenti...
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The airflow distribution in an operating room plays a vital role in preventing surgical site infection by diluting and removing particles released by medical staff, lowering particle settlement on a patient. This study aims to computationally examine the efficiency of a ceiling-mounted air curtain in reducing particle distribution in a surgical zon...
Article
The airflow distribution in an operating room plays a vital role in preventing surgical site infection by diluting and removing particles released by medical staff, lowering particle settlement on a patient. This study aims to computationally examine the efficiency of a ceiling-mounted air curtain in reducing particle distribution in a surgical zon...
Chapter
Waste management system plays a significant role in sustainable development and the Circular Economy (CE) transition. It is important but challenging to consider an integrated system in assessing and improving the sustainability of waste management. This article discusses the characteristics and contribution of an Integrated Waste Management System...
Article
This review covers the recent advancements in selected emerging energy sectors, emphasising carbon emission neutrality and energy sustainability in the post-COVID-19 era. It benefited from the latest development reported in the Virtual Special Issue of ENERGY dedicated to the 6th International Conference on Low Carbon Asia and Beyond (ICLCA′20) and...
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The misuse of antibiotics and ineffective treatment in aquaculture cause serious environmental problems. The closed-loop design of recirculating aquaculture systems (RAS) enables the effective use of antibiotics and rapid removal of antibiotic residues, which is of less concern. This study aims to examine the feasibility of rapid in-situ removal of...
Article
Compost leachate (CL) is often treated as sewage. Limited studies have characterised the use of CL for agriculture application due to the variation of nutrient range, potential pollutants and need for pretreatment before use. This paper reviewed the characteristics of CL in terms of its nutrients and physical characteristics from three types of bio...
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There has been plenty of research on the influence of various socio-economic and demographic data on waste generation to develop effective and targeted waste reduction measures, including energy recovery. This study evaluates the relationship between the waste generation and Circular Material Use rate, Environmental Tax Revenue, and Global Innovati...
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Plastic waste and its environmental hazards have been attracting public attention as a global sustainability issue. This study builds a neural network model to forecast plastic waste generation of the EU-27 in 2030 and evaluates how the interventions could mitigate the adverse impact of plastic waste on the environment. The black-box model is inter...
Article
An effective strategy for the nutrient recovery from fish sludge in aquaponics is critical for cleaner and sustainable production. The modified biological aerated filter (MBAF) is applied as an effective approach for the collection and conversion of fish sludge to nutrients in one reactor. Nutrient conversion would be synchronized during the filtra...
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Pengerang, Johor, Malaysia is to become at global centre of integrated petrochemical refinery industry under the Malaysia's National Key Economic Area (NKEA) and will become the largest regional petroleum refinery and trading hub in South East Asia. In line with the national aims towards carbon neutrality, Pengerang is set to achieve as much as 50...
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In recent years, biochar has attracted considerable attention due to its unique characteristics and wide applications in agricultural and environmental areas. Biochar is recognized for its potential role in carbon sequestration, reduction of greenhouse gas emissions, soil amendment, bioenergy production and waste mitigation. The current review disc...
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The anthropogenic emission of carbon dioxide (CO2) into the atmosphere is recognized as the main contributor to global climate change. To date, scientists have developed various strategies, including CO2 utilization technologies, to reduce global carbon emissions. This paper presents the global scientific landscape of the CO2 utilization research f...
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BACKGROUND The growing demand for cellulases and xylanases in lignocellulosic degradation and reutilization has spurred the need for their improved production at a reduced cost. The abundantly available oil palm leaves (OPL) promises an alternative and sustainable substrate for producing the enzymes, in the degradation and biotransformation of unwa...
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Disposal of conventional polymer-based electrodes and capacitor can cause pollutions or incur high cost. More carbon based nanosheet electrode is more environmental friendly. Novel supercapacitors were fabricated using carbon nanosheet electrode. Two pieces of thick layer carbon nanosheet electrodes were used as the cathode; the anode were made of...
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Intensive agricultural practices with excessive use of chemical fertiliser have led to the deterioration of soil fertility where soil losses its ability to sustain a consistent crop system with high yield. Compost is a potential substitution to chemical fertiliser. As a biological additive, compost can improve soil quality and crop productivity, co...
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To overcome abiotic stress such as high salinity or drought, plants will synthesise specific metabolites to enhance the tolerance level. These metabolites are used as markers to relate to the potential metabolite pathways to alleviate salinity or drought stress with enhanced tolerance. The application of plant growth-promoting bacteria (PGPB) is of...
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Biochar has a broad application owning to its physicochemical properties and low cost by origin (by-products or generated from waste). Wide research attention received is the application to the soil as carbon sequestration. In contrast to the efficiency evaluation, the overall cost feasibility and environmental performance of the application still...
Article
The building of new waste treatment plants has not been closely following the Circular Economy (CE) hierarchy, and the incurred cost and social acceptance have been challenging. Integrated regional waste management by waste trading can offer the sharing of resources to achieve a mutually beneficial system in CE transition. This study aims to minimi...
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Malaysia is in a transition state towards a more developed country which stresses on sustainable development. The Malaysia government has introduced several policies related to the installation of renewable energy to secure its energy demand, which has an annual growth rate of 8.1%. In the Iskandar region in Johor, low-carbon development projects h...
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The present study aims at developing an innovative eco-friendly process in a way to generate safer and more stable silver nanoparticles (Ag-NPs) with a high purity by means of Sargassum myriocystum aqueous extract. The Ag-NPs formation was preliminary confirmed by UV–Visible spectroscopy analysis based on band of surface plasmon resonance appeared...
Article
The removal of nitrate and phosphate in polluted water is a challenging environmental problem. This study was designed to use a different light spectrum to enhance carbon-based metal nanocomposites adsorbent for the augmented removal of nitrate and phosphate from aqueous solution. Synthesis of aluminium oxide nanoparticle (Al2O3NPs)/Moringa oleifer...
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The production of biochar from waste materials by pyrolysis can play a significant role in materialising the circular economy. The application of biochar with positive impacts are attributed by the unique properties of biochar, including its surface area, porous structure, functionality and adsorption capacity. The application of biochar with highe...
Article
This paper presents the research landscape on microplastics and nanoplastics (M/NPs) in global food webs based on a bibliometric analysis of 330 publications published in 2009–2019 extracted from Web of Science. The publications increased tremendously since 2013. Marine Pollution Bulletin is one of the top productive journals for this topic. The pu...
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As yet, the full potential of raw oil palm frond leaves (OPFL) is not fully explored. This study therefore, evaluated OPFL as cheap and sustainable growth substrate for two novel fungi species to produce cellulase and xylanase under solid-state fermentation (SSF). 18S rRNA, phylogeny and BIOLOG® analyses identified the cellulase and xylanase-produc...
Article
Energy plays a leading role in supporting the smart concepts, such as the Internet of Things and data storage, for the advanced development of cities and industries. The smart-concept makes use of the information and communication technologies (ICT) to supply information required for effective management. This Special Issue in Energy includes the l...
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The presence of high amount of mineral compounds such as calcium (Ca ²⁺ ) and magnesium (Mg ²⁺ ) in water attributed to occurrence of water hardness. Hard water causes lime scale in the kettle when boiling, and forms reddish brown stains on the clothes after washing. This study was carried out to investigate peels of durian, jackfruit and passion f...
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This paper reports the research of preparing an aqueous solution of binchotan carbon electrochemically and followed by its purification through sonification and dialysis. Binchotan rod and platinum plate were used as anode and cathode. The electrodes were placed on both sides of beaker glass that contained 200 ml of 14 M sulphuric acid, oxalic acid...
Article
As a flexible market mechanism based on the control of total quantity, the carbon emission trading system aims to achieve economic development while reducing carbon emissions and energy consumption. How to improve the effectiveness of carbon emission trading (CET) policy and achieve the established emission reduction targets have attracted widespre...
Article
The recovery of nutrients from residual fish sludge in aquaponics could achieve zero solid waste discharge and supplement additional nutrients to hydroponics, thus yielding environmental and economic benefits. In this study, novel biological aerated filters (BAFs) with ceramsite plus different lignocellulosic materials (corn straw, wheat straw, and...
Article
This article constructs and estimates a multi-area dynamic stochastic general equilibrium model with a spatial simultaneous equation. Taking Beijing-Tianjin-Hebei region in China as an example, we explain the dynamic effect of environmental expenditure shock and its spillover effects. Environmental expenditure has an obvious crowding-out effect on...
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The study is aimed to enhance the productivity of microalgal culture by varying the organic and inorganic components during wastewater treatment. A model organism Chlorella pyrenoidosa (C. pyrenoidosa) was grown in four different sources of wastewater namely piggery, palm oil mill effluent (POME), mixed-kitchen, and domestic wastes. The growth effi...
Article
The novel immobilized microbial granules (IMG) shows a significant effect of nitrification for freshwater aquaculture. However, there is lack of evaluation study on the performance of nitrification at high salinity due to the concentration of recycled water or seawater utilization. A laboratory scale moving bed bioreactor (MBBR) with IMG was tested...
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The ingredients of photosynthetic reactions can be exploited to increase algal culture productivity to effectively treat wastewater by significantly reducing the presence of organic and inorganic compounds. In this study, we introduced microalgae Chlorella pyrenoidosa (C. pyrenoidosa) into four different wastewater samples, including Palm Oil Mill...
Article
Production of cellulases and xylanase by a novel Trichoderma asperellum UC1 (GenBank accession no. MF774876)under solid state fermentation (SSF)of raw oil palm frond leaves (OPFL)was optimized. Under optimum fermentation parameters (30 °C, 60–80% moisture content, 2.5 × 10 ⁶ spores/g inoculum size)maximum CMCase, FPase, β-glucosidase and xylanase a...
Article
Waste prevention and management become a significant issue worldwide to achieve sustainable development. Similar to many developing countries, Malaysia has faced severe problems in waste management due to its rapid economic growth and urbanisation. The municipal solid waste (MSW) production rate in Malaysia had increased significantly in a recent y...
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Environmental sustainability has gained increasing attention in recent years due to the evident impacts of rapid economic growth and urbanisation. Efficient resources and utility management is one of the vital strategies to minimise waste/losses, pollution and extraction of virgin resources. It facilitates the development of a circular economy. Thi...
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Compost leachate (CL) is a liquid by-product of compost that contains carbon, nitrogen, phosphorus, potassium and trace elements. It can partially replace the commercial liquid fertilisers to promote plant growth. However, CL may contain heavy metals, phytotoxic substances such as ammonia, organic compounds of low molecular weight, high level of sa...
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Sustainability is a main rule in environmental resource management, and it included operational productivity, minimization of natural effect and socio-economic contemplations; which are all related. Many research projects have been conducted on finding alternative of energy from renewable sources and utilization of waste materials. Based on the pre...
Article
Lignocellulosic waste (LW) is abundant in availability and is one of the suitable substrates for anaerobic digestion (AD). However, it is a complex solid substrate matrix that hinders the hydrolysis stage of anaerobic digestion. This study assessed various pre-treatment and post-treatments of lignocellulosic waste for anaerobic digestion benefiting...
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The high rate of population growth along with economic and industrial development especially in city areas have led to significant increase in the generation of municipal solid waste (MSW) in China. It has been a challenging task for government and municipalities to develop a sustainable solid waste management, especially in the developing countrie...
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Several treatment technologies are available for the treatment of palm oil mill wastes. Vermicomposting is widely recognized as efficient, eco-friendly methods for converting organic waste materials to valuable products. This study evaluates the effect of different vermicompost extracts obtained from palm oil mill effluent (POME) and palm-pressed f...
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Tualang honey is well known for its biological activities including as an antioxidant and anti-inflammatory. The compounds contributing to the biological activities are still unknown. Therefore, fractionation was carried out to prepare phenolic-rich extract from Tualang honey using ethyl acetate (EA). EA could recover a wide range of phenolic compo...
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Aquaponics refers to a system that combines aquaculture (raising aquatic animals like fish) with hydroponics (cultivating vegetable plants in water) in a symbiotic environment. This system has great potential as a new industrialised food production approach to meet the needs of rapid urbanisation. An evolutional food production system with high pro...
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The rising rate of population growth and industrial development mainly in urban areas have led to significant increase in municipal solid waste (MSW) production. It has been a challenge to materialise a sustainable solid waste management notably in many developing countries. Organic portion represents a significant component in the municipal solid...
Article
Anaerobic digestion (AD) serves as a promising alternative for waste treatment and a potential solution to improve the energy supply security. The feasibility of AD has been proven in some of the technologically and agriculturally advanced countries. However, development is still needed for worldwide implementation, especially for AD process dealin...
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In tropical countries, the palm oil industry discharges a large amount of wastewater. The wastewater can serve as an economical nutrient source or substrate that can support the cultivation of microalgae. This study aimed to identify the local species of microalgae potentially existing in the industrial wastewater of palm oil mill effluent (POME)....
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The greenhouse gas emissions footprint and global warming potential are widely-used for environmental sustainability studies. However, environmental sustainability is far wider than carbon emissions and climate change. This review aims to highlight the importance of considering air pollutants in optimisation studies and evaluate the limitation of t...
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There are contrasting opinions on the utilisation of microbial inoculant (MI) as a bioremediation technology for composting. The effectiveness can be affected by a diversity of factors, and the reproducibility of results can be a great challenge.This study aims to review the effectiveness of MI, specified as isolated or cultured single and consorti...
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Food production and consumption is one of the major causes of global environmental degradation. One way to address environmental impacts in the food and beverage (F&B) sector is via the adoption of environmental management systems (EMS). To date, EMS research has focused predominantly on countries and sectors based in the Global North despite growi...
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Mitigation of greenhouse gases (GHG) emissions is desirable without compromising the economic growth. This paper reviews the recent trends to mitigate GHG emissions in the key sectors of energy and solid waste. The energy sector is the key admitter for global GHG emissions, and a range of optimisation and modelling tool has been developed to minimi...
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Effective spatial planning is crucial for the cost-effectiveness and sustainable development of biomass energy resources due to the diffuse nature of biomass and high transportation cost. To leverage the existing capitals of the fossil fuels energy systems, portions of biomass can be integrated as fuel within the existing energy facilities through...
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The extensive utilisation of microorganisms namely fungi and bacteria for treating organic wastes has been attributed to their efficiency in eliminating pathogen and accelerating the degradation process. Their uses have been found considerably efficient for enhancing waste treatment. Among many methods employed, composting mediated by indigenous mi...
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Over 90% of economies in Asia have submitted the mitigation objectives in the Intended Nationally Determined Contribution (INDC) for reducing GHG emissions targets and communicating other relevant climate policy actions. It is crucial to continuously monitor the achievement of this GHG mitigation targets using monitoring tools and evidenced by scie...
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One of the major environmental issues and research challenges have been to reduce emissions and effluents without compromising the production performance. The renewable energy recovery from waste to energy is less emitting than using fossil fuels. It can compete with the other renewables if properly generated, transferred, transmitted and used. Ana...
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Anaerobic digestion is one of the major biological-based technologies for converting organic waste to energy. The end-product of the process is the production of biogas that can be harvested as renewable energy and a nutrient-rich digestate that can be transformed as biofertiliser. Food waste varies seasonally and geographically, leading to a varia...
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Background: Patents reveal that a comfortable touch, slim size and light in weight have become a prevailing trend in the design and development of computer keyboard. Current mechanical keyboard has attracted a great attention due to its advanced features especially the need for unique touch and comfort of mechanical key devices in the new era of co...