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Huzairy Hassan
Preferred name
Huzairy Hassan
Official Name
Hassan, Huzairy
Alternative Name
Hassan, H.
Hassan, Huzairy
Main Affiliation
Scopus Author ID
55389539900
Researcher ID
GYR-0674-2022
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1 - 6 of 6
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PublicationCurrent status on Microbial Fuel Cell (MFC) technology( 2022-01-01)
;Raudzah Mohd Zahir ;Ahmad M.A.Agricultural and industrial activities in Malaysia have adversely impacted environmental quality leading local researchers to mobilize their expertise and resources to protect the environment from this alarming situation. The palm oil industry, for instance, generates an abundance of wastes (such as palm oil mill effluent [POME]), which calls for effective technological tools to reduce these recalcitrant wastes from spreading further. Microbial fuel cell (MFC) is an emerging technology for wastewater treatment and electricity generation simultaneously, which appears to be the most advantageous solution for these environmental concerns. This chapter reviews the prospects of MFC research with a special emphasis on the current MFC status in Malaysia. It begins with an overview of MFC principles, electron transfer mechanisms, and bio-electrochemical performance. Following that, a review of the recent MFC developments and activities by Malaysian researchers is discussed with an emphasis on POME utilization. This chapter concludes with several resolutions to the main challenges researchers and scientists are facing regarding the scalability of MFC for electricity recovery and wastewater treatment.4 -
PublicationCarbonized chilli stalk adsorbent to remove methylene blue dye from aqueous solution: Equilibrium and kinetics studies( 2021-05-24)
;Aziz A. ;Yahaya N.K.E.M. ;Karim J. ;Ahmad M.A.Karim K.A.The fast growth of textile industry has led to afflictive water pollution problems. The discharge of dyes into the environment poses health threats to the ecosystem due to their carcinogenicity and mutagenicity. Adsorption process is among the most utilized approach in treating textile wastewater. Chilli stalk which is abundantly available as agrowaste was transformed into adsorbent through carbonization process at various temperatures for the adsorption of methylene blue (MB). Dye batch adsorption studies were conducted to evaluate the effects of initial dye concentration (25 – 300 mg/L), contact time (0 – 24 hours) and carbonization temperature (350 - 400 °C). The surface characteristics, proximate and elemental analyses, surface morphology and chemistry were studied on both chilli stalk (CS) and carbonized chilli stalk adsorbent (CCSA). The maximum MB dye removal was 97.04% at 400 °C of carbonization temperature. The data fitted Freundlich isotherm model and pseudo-second-order kinetic model for adsorption equilibrium and kinetic studies, respectively.1 -
PublicationChloramphenicol and methylene blue adsorption by modestly treated paper sewage sludge-based activated carbon( 2023-12-01)
;Aziz A.Ahmad M.A.Refractory pollutants like pharmaceuticals and dyes have become excessively prevalent in most Malaysian water bodies because of the growing textile and pharmaceutical industries. Hence, this work employed activated carbon prepared from freely available paper mill sewage sludge for removing chloramphenicol (CAP) and methylene blue (MB). Modest treatment of low-temperature carbonisation assisted with a short activation time of microwave radiation had been used. Analysis of variance of central composite design resulted in the optimum conditions of 440-W radiation power and 3-min activation time for optimum removal of 70% CAP and 51% MB. The surface area of the paper mill sewage sludge activated carbon (PMSSAC) improved greatly from 1.14 to 412 m2/g, with the highest adsorption capacity of 13 mg/g. The scanning electron microscope images demonstrated the efficiency of microwave radiation treatment, where more cavities and pores were observed on activated carbon for improved adsorbate penetration. The Freundlich isotherm and the pseudo-second-order model appeared to best fit the kinetic data. Furthermore, the high affinity of adsorbate towards the PMSSAC surface could be the plausible mechanism, as indicated by the high amount of adsorption within the initial stage of adsorption. Thus, it is envisaged that our PMSSAC could be effectively employed in actual wastewater systems, as evidenced by excellent CAP and MB removal. Graphical abstract: [Figure not available: see fulltext.]1 -
PublicationMethylene blue dye removal using Parkia speciosa pod based activated carbon( 2021-05-24)
;Aziz A. ;Yahaya N.K.E.M. ;Karim J.Ahmad M.A.Critical environmental issues have emerged from wastewater of industrial textile effluent discharge which consists of refractory dyes. Effective methods such as activated carbon (AC) adsorption is extremely demanded for solving this environmental pollution. In this study, low-cost AC was developed from Parkia speciosa pods (PSP) using microwave-assisted activation technique for the methylene blue (MB) dye adsorption. Optimization on activating conditions in terms of MB removal and AC yield was performed using response surface methodology (RSM). The optimum microwave irradiation power (MIP) of 416.50 W was found to have significant effect on MB removal at 2 minutes activation. The Parkia speciosa pods activated carbon (PSPAC) possessed intermediate surface area and total pore volume of 51.3 m2/g and 0.0681 cm3/g, respectively. PSPAC surface morphology was microscopically observed with highly porous structure indicating characteristics of good AC. Batch adsorption studies with various initial concentrations discovered that MB adsorption increased with increasing initial concentrations and contact time. The experimental data was in close fit using Langmuir isotherm and followed pseudo-first-order kinetic models. The MB dye adsorption process was governed by simultaneous surface adsorption and intraparticle diffusion. The results of studies proved that PSPAC is a potential adsorbent for dye-contaminated wastewater.1 -
PublicationPreliminary comparison of 2-chlorophenol biodegradation using microbial fuel cell and anaerobic systems( 2022-04-20)
;Raudzah Mohd ZahirAhmad M.A.2-chlorophenol (2CP) is a typical contaminant found in industrial effluent that is both hazardous and persistent in the environment. The bioelectrochemical degradation of 2CP has been approved as a preferred method for removing the abrasive 2CP from wastewater. In this work, a microbial fuel cell (MFC) system inoculated with palm oil mill effluent (POME) sludge was used to degrade 2CP. The changes of morphology of the anode biofilm were observed under a light microscope and scanning electron microscope (SEM) for 2CP-fed MFC compared with the biofilm inoculated in an anaerobic chamber (AC). Maximum current density generated by the MFC was 97.30 mA/m2 while degrading 75% 2CP. Lower 2CP degradation of 60% was observed using the AC. Also, the abundance of negatively stained bacteria is reduced in the AC biofilm. This research shows that bioelectrochemical 2CP degradation is more efficient than conventional AC degradation. POME has the potential to be a high-value substrate for bacteria that can generate electricity in the MFC while also degrading harmful 2CP.2 13 -
PublicationCarbonization of sludge biomass of water treatment plant using continuous screw type conveyer pyrolyzer for methylene blue removal( 2021-05-24)
;Ahmad M.A. ;Yusop M.F.M. ;Awang S. ;Yahaya N.K.E.M. ;Rasyid M.A.The wide and fast growth of the textile industry has become one of the contributors to the water pollution. In this study, carbonized sludge (CS) was produced as an adsorbent for removal of methylene blue (MB) dye from aqueous solution. Sludge biomass from water treatment plant as precursor was carbonized using continuous screw type conveyer pyrolyzer at different conveyer frequency of 5 Hz and 10 Hz. Batch adsorption studies were carried out by varying MB initial concentrations (25 - 300 mg/L) and contact time (0 - 24 hours). The CS5Hz sample shows the highest surface area and total pore volume of 88.73 m2/g and 0.1417 cm3/g, respectively. This sample exhibits average pore diameter of 3.84 nm, monolayer adsorption capacity of 45.68 mg/g and well develop of pores structure. Freundlich and pseudo second order models were revealed to fit the isotherm and kinetic data, respectively with film diffusion play a major role as rate limiting step.1