Papers by SYAZWANI MOHD ASHARUDDIN
Potential of cassava peels as a sustainable coagulant aid for institutional wastewater treatment: Characterisation, optimisation and techno-economic analysis
This work studies cassava peel starch (CPS) potential as a replacement for commercial chemical co... more This work studies cassava peel starch (CPS) potential as a replacement for commercial chemical coagulants for treating institutional wastewater since the CPS is highly biodegradable with non-toxic sludge and relatively locally available and cheap to obtain. The treatment of wastewater by CPS was optimized using response surface methodology (RSM), while the applicability of CPS was estimated based on techno-economic analysis (TEA). The alum (control), CPS, and mixed (alum and CPS) coagulants were optimized in terms of pH, dosage and settling time as independent factors. The optimal turbidity, total suspended solids (TSS), and chemical oxygen demand (COD) removal were recorded at pH 9, with 30 mg/L and after 34.34 min for alum at which the removal rates were 83.44%, 76.83% and 32.87%, respectively (R2 = 0.83). At pH 6.0, with 448.58 mg/L of CPS and after 43.23 min, the removal rate was 60.19% for turbidity, 57.79% for TSS, and 30.19% for COD (R2 = 0.86). At pH 8, with 4:1 ratio (CPS: ...
MATEC Web of Conferences
The natural water falls from the mountain is merging into the oceans. This water is preserved by ... more The natural water falls from the mountain is merging into the oceans. This water is preserved by humans that are consumed for agriculture, industrial, and municipal use. This water become wastewater after different usage, and finally, completes the hydrological cycle. The water becomes wastewater due to population growth, urbanization, industrialization, sewage from household, institutions, hospitals, industries and etc. Wastewater can be destructive for the public because it contains a variety of organic and inorganic substances, biological substances, toxic inorganic compounds and the presence of toxic materials. The coagulant chemicals and its associated products are resourceful but these may change the characteristics of water in terms of physical and chemical characteristics, this make matters worse in the disposal of sludge. An option of natural polymer can be used in water and wastewater in this review. The natural polymers are most efficient that provide several benefits such as; prolific, exempt from physical and chemical changes from the treated water.
Molecules
Sustainable wastewater treatment is one of the biggest issues of the 21st century. Metals such as... more Sustainable wastewater treatment is one of the biggest issues of the 21st century. Metals such as Zn2+ have been released into the environment due to rapid industrial development. In this study, dried watermelon rind (D-WMR) is used as a low-cost adsorption material to assess natural adsorbents’ ability to remove Zn2+ from synthetic wastewater. D-WMR was characterized using scanning electron microscope (SEM) and X-ray fluorescence (XRF). According to the results of the analysis, the D-WMR has two colours, white and black, and a significant concentration of mesoporous silica (83.70%). Moreover, after three hours of contact time in a synthetic solution with 400 mg/L Zn2+ concentration at pH 8 and 30 to 40 °C, the highest adsorption capacity of Zn2+ onto 1.5 g D-WMR adsorbent dose with 150 μm particle size was 25 mg/g. The experimental equilibrium data of Zn2+ onto D-WMR was utilized to compare nonlinear and linear isotherm and kinetics models for parameter determination. The best mode...
Nipah (Musa Acuminata Balbisiana) banana peel as a lignocellulosic precursor for activated carbon: characterization study after carbonization process with phosphoric acid impregnated activated carbon
Biomass Conversion and Biorefinery
Synthesis and Characterization of Dual Properties Coagulant from Natural Precursors for Raw Water Treatment
International Journal of Integrated Engineering
Malaysian Journal of Fundamental and Applied Sciences
Heavy metal contamination in groundwater is among the significant environmental issues which requ... more Heavy metal contamination in groundwater is among the significant environmental issues which require high priority of remediation action due to its importance in our daily life. This study intended to upcycle Cucumis melo (C. melo) rind which a waste from agricultural industries as natural adsorbent to remove iron (Fe) and lead (Pb) ions from groundwater. The efficiency of C. melo rind to remove Fe and Pb under pre-determined optimum conditions were analyzed and the result showed that metal removal was up to 96.83 % for Fe and 94.88 % for Pb ions under Fe ion-optimized working conditions. While under Pb ion-optimized working conditions, the removal percentage obtained were up to 87.19 % for Fe and 95.09 % for Pb ion. Adsorption isotherm analysis data of both metal ions were fitted well to the Langmuir model with maximum adsorption capacity of 5.35 mg/g and 0.08 mg/g for Fe and Pb ions respectively. The kinetics experimental data correlated well with the pseudo-second order kinetics ...
Flocculation and antibacterial performance of dual coagulant system of modified cassava peel starch and alum
Journal of Water Process Engineering
MATEC Web of Conferences, 2017
This study investigates the chemical and morphological characteristics of cassava peel (CP) bioma... more This study investigates the chemical and morphological characteristics of cassava peel (CP) biomass as a potential coagulant aid for turbidity, heavy metals and microbial removal. FE-SEM micrograph shown the surface of the CP samples was covered with smooth and globular in shaped of bound starch granules. FTIR spectra demonstrated that carboxyl and hydroxyl groups were present in abundance. Whereas analysis by XRF spectrometry indicated the CP samples contain Fe 2 O 3 and Al 2 O 3 which might contribute to its coagulation ability. The features of CP obtained from this study promotes the feasibility of CP to be further developed and studied to produce effective coagulant aid as sustainable alternative to reduce the usage of chemical coagulants.
Utilization of Cucumis Melo Rind as Fe and Pb Ions Biosorbent
The biosorption properties of the Cucumis melo (C.melo) rind to remove Fe and Pb ions from ground... more The biosorption properties of the Cucumis melo (C.melo) rind to remove Fe and Pb ions from groundwater solutions were investigated. The effect of different metal optimized conditions (contact time, biosorbent dosage and pH) on metal uptake by C.melo were investigated and metal removal were up to 96.83% for Fe and 94.88% for Pb ion under Fe ion optimized conditions. While under Pb ions optimized conditions, the removal percentage obtained were up to 87.19% for Fe and 95.09 for Pb ion after 45 minutes agitation in 100ml of groundwater samples with biosorbent dosage of 0.05 g. Adsorption isotherm analysis data of both metal ions were fitted well to the Langmuir model with maximum adsorption capacity of 5.3505mg/g and 0.0830 mg/g for Fe and Pb ions respectively. The kinetic experimental data correlated well with the pseudo-second order kinetics model. From the characterization study of the biosorbent using SEM-EDX, FTIR and XRF, ion exchange and micro precipitation were estimated to be ...
Local fruit waste as a potential biosorbent for wastewater containing heavy metals: An overview
2012 IEEE Symposium on Business, Engineering and Industrial Applications, 2012
ABSTRACT Biosorption can be used as a cost effective and efficient technique for the removal of t... more ABSTRACT Biosorption can be used as a cost effective and efficient technique for the removal of toxic heavy metal from wastewater. Waste material from industries such as food processing and agriculture may act as potential biosorbent. This paper highlighted the potential used of local fruit waste as biosorbent for heavy metal removal in wastewater. According to Malaysian regulation, the discharge of the effluents into the receiving environment should follow acceptable level. Therefore, various techniques have been employed for the treatment of metal-bearing industrial wastewaters including biological treatment through biosorption. Biosorption offers the advantages of low cost, good efficiency and production of sludge with high metal content is possible to avoid by the existence of metal recovery method from metal loaded biosorbent. The successful application of local fruit waste in treating wastewater containing heavy metals requires a deeper understanding of how biosorbent material proceeds. An overview of research focusing on biosorbent of heavy metal using local fruit waste will be presented.
Advanced Materials Research, 2013
Cucumis melo rind was evaluated as a new biosorbent for the removal of Fe (II) and Mn (II) from s... more Cucumis melo rind was evaluated as a new biosorbent for the removal of Fe (II) and Mn (II) from synthetic groundwater solution. The maximum sorption capacity of Fe (II) and Mn (II) was found to be 4.98 mg/g and 1.37 mg/g respectively. Sorption was most efficient at pH 7 and 6.5 for Fe (II) and Mn (II) respectively. The biosorption of both metals increased as the quantity of biosorbent increased. The increase in initial metal concentration was associated with steep increase in biosorption at lower concentrations and progressively reaching towards plateau at higher metal concentration. FTIR demonstrated that hydroxyl and carboxyl groups were involved in the biosorption of the metal ions. The study points to the potential of new use of Cucumis melo rind as an effective sorbent for the removal of Fe (II) and Mn (II) from aqueous solution.
Applied Mechanics and Materials, 2013
Biosorption is an environmental friendly method for metal removal as it can be used as a cost eff... more Biosorption is an environmental friendly method for metal removal as it can be used as a cost effective and efficient technique for heavy metal removal. A lot of biomass can be choosed as biosorbent such as waste material from food processing and agriculture.ent. This paper will review the potential used of local fruit rind as biosorbent for heavy metal removal in wastewater. Heavy metals have been in various industries and resulted to a toxic condition in aquatic ecosystem. Therefore, various techniques have been employed for the treatment of metal-bearing industrial wastewaters including biological treatment through biosorption. Biosorption offers the advantages of low cost, good efficiency and production of sludge with high metal content is possible to avoid by the existence of metal recovery method from metal loaded biosorbent. The successful application of local fruit waste in treating wastewater containing heavy metals requires a deeper understanding of how biosorbent material...
International Journal of Integrated Engineering
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Papers by SYAZWANI MOHD ASHARUDDIN