A Potential Waste to be Selected as Media for Metal and Nutrient Removal

Zayadi, Nabilah; Othman, Norzila; Hamdan, Rafidah

doi:10.1088/1757-899x/136/1/012051

Cited by 11 publications

(15 citation statements)

References 13 publications

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“…Based on the SEM micrographs at 500x magnification, it was observed that the CPs surface feature non-porous and heterogeneous characteristics. Similar observations were reported by other studies on SEM analysis on Cassava peel [9][10][11]. Smooth and globular in shape of bound starch granules were observed to mostly cover overall surface of CP1 and appeared to be in cluster on CP3 sample.…”

Section: Field Emission Scanning Electron Microscopy (Fe-sem)supporting

confidence: 90%

“…Then the peels were soaked in distilled water for further clean up at least for 24 hours followed by oven drying at 60°C for 24 hours to substantially remove its moisture content. The dried peels were then ground to fine powder using domestic blender and sieved to obtain desirable particle size of < 150μm [9,10]. Final products were kept in air tight plastic container for further analysis.…”

Section: Preparation Of Biomaterialsmentioning

confidence: 99%

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A Chemical and Morphological Study of Cassava Peel: A Potential Waste as Coagulant Aid

et al. 2017

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Abstract. 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.

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Section: Field Emission Scanning Electron Microscopy (Fe-sem)supporting

confidence: 90%

Section: Preparation Of Biomaterialsmentioning

confidence: 99%

A Chemical and Morphological Study of Cassava Peel: A Potential Waste as Coagulant Aid

et al. 2017

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“…The optimum pH was 7.5 that resulted in removal up to 95% for heavy metals, 49.2% for NH 4 percentage removal above pH 7 could be due to the electrostatic repulsion between the negatively charged species and the biosorbent surface. Hence, it can be concluded that an effective removal of heavy metals from aqueous solution can be accompanied by using CPAC and were supported through characterization of cassava peel by XRF, FTIR, FESEM-EDX and TG analysis [6]. 4 -N and chlorophyll-a by using EAFS.…”

Section: Effect Of Phmentioning

confidence: 83%

“…Moreover, the presence of Si, Ca, Mg, Fe, rich in functional groups and surface porosity of media were significant factors which attribute to facilitate heavy metals and nutrient removal [6]. Study by Nabilah et al, [6] supports the potential use of cassava peel and steel slag through characterization of medias by XRF, FTIR, FESEM-EDX, XRD and TG analysis.…”

Section: Introductionmentioning

confidence: 99%

Optimization of pH in Ammonia, Heavy Metals, and Chlorophyll-a Removal by using Electric Arc Furnace Slag and Activated Carbon Cassava Peel

Zayadi¹,

Ling²,

Othman³

et al. 2017

MATEC Web Conf.

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Abstract. The wastewater contain high concentrations of inorganic and organic pollutant and that could be toxic to aquatic life and may lead to toxic environment of the water bodies. The poolutants able to accumulate in living tissues, causing various illnesses. In this study, parameters that affected the removal of heavy metals, ammonia (NH 4 -N) and chlorophyll-a were investigated in a synthetic water of mixed metals, NH 4 -N, and alga synthetic solution. The removal was strongly affected by pH by using activated carbon cassava peel (CPAC) and Electric Arc Furnace Slag (EAFS) as media For CPAC, optimum condition for removing heavy metals, NH 4 -N and chlorophyll-a can be achieved at pH 7.5 where removal up to 95% for heavy metals, 49.2% for NH 4 -N and 56.8% for chlorophylla. While for EAFS, the optimum condition for removing heavy metals, NH 4 -N and chlorophyll-a can be achieved at pH 7.5 where removal up to 93% for heavy metals, 77.7% for NH 4 -N and 80.7% for chlorophyll-a. In order to obtain the maximum removal of heavy metals, NH 4 -N and chlorophyll-a, two conditions obtaining CPAC and EAFS were considered. The optimum condition for removing heavy metals, NH 4 -N and chlorophyll-a by 1/3 CPAC + 2/3 EAFS was pH 7.5 as well where removal up to 95% for heavy metals, 86.2% for NH 4 -N and 90.9% for chlorophylla. By using 1/3 EAFS + 2/3 CPAC, the optimum removal of heavy metals, NH 4 -N and chlorophyll-a was at pH 7.5 where removal up to 96% for heavy metals, 80.7% for NH 4 -N and 86.4% for chlorophyll-a. This study highlighted that EAFS and CPAC peel are promising method in removing Zn, Al, Fe ions, NH 4 -N and chlorophyll-a from aqueous solution.

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“…Cassava peels contain large amounts of cynogenic glucosides, besides they also can emit a strong offensive smell and carbon dioxide from the rotten waste heaps. A study carried out by Zayadi et al (2016) stated that that cassava peel has potential to be selected as waste-based coagulant due to its ability to remove nutrient and heavy metals, supported by the presence of Si, Ca, Mg, Fe, abundant functional groups and surface porosity of media as the main features. This natural-polymer coagulant shows a promising choice for water coagulants due to their biopolymers composed of proteins and polysaccharides (Mohd-Asharuddin et al 2017;Zayadi et al 2016).…”

Section: Chemical and Natural Coagulantsmentioning

confidence: 99%

A Review of Wastewater Treatment using Natural Material and Its Potential as Aid and Composite Coagulant

Salleh¹,

Mohd-Zin²,

Othman³

2019

JSM

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The introduction of natural materials into the coagulation-flocculation process need to be practiced as common as possible. The previous literature indicated that utilization of natural material is actually worth to be developed and if possible, into the commercial one. However, the application of natural coagulants itself as the primary treatment is not sufficient, due to the rise in constraints which limited its performance. Emerging technologies and depth studies are actually helping these limited conditions to grow them as good as the performance of chemical coagulants. Alternatively, the natural-based coagulants are commonly used as coagulant aids alongside chemical coagulants, which have created a highlight in water research. This review covers the type of coagulants used in the coagulation-flocculation of wastewater treatment especially in the usage of natural-based coagulants. This review paper also outlines the future prospects of natural materials as aids and its potential as sustainable composite coagulants.

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A Potential Waste to be Selected as Media for Metal and Nutrient Removal

Cited by 11 publications

References 13 publications

A Chemical and Morphological Study of Cassava Peel: A Potential Waste as Coagulant Aid

A Chemical and Morphological Study of Cassava Peel: A Potential Waste as Coagulant Aid

Optimization of pH in Ammonia, Heavy Metals, and Chlorophyll-a Removal by using Electric Arc Furnace Slag and Activated Carbon Cassava Peel

A Review of Wastewater Treatment using Natural Material and Its Potential as Aid and Composite Coagulant

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