Heavy Metals Pollution and Ecological Risk Assessment in Surface Sediments of West Coast of Peninsular Malaysia

Buhari, Tijjani Rufa’i; Ismail, Ahmad

doi:10.18178/ijesd.2016.7.10.874

Cited by 7 publications

(3 citation statements)

References 30 publications

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“…The CCAC surface is not smooth, but rather uneven, producing a relief, and porous, with many channels, are necessary for good adsorptive capacity of the separation medium [14]. The presence of macro-pores allows for the convectional transport of the aqueous phase into the interior of coconut composite activated carbon, resulting in more efficient metal ion and organic molecule diffusion [15]. In addition, figure 3 shows the FTIR spectrum of CCAC was determined by FTIR analyzer (Niclet 6700 FT-IR).…”

Section: Coconut Composite Activated Carbon (Ccac) Characterizationmentioning

confidence: 99%

Removal of copper and zinc in metal working fluid using coconut composite filter media

Aziz

Akbar

Bakar

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Metal working fluid industry is the major contributing sources of heavy metals. Their multiple industrial, domestic, and technological applications have led to their wide distribution in the environment, raising concerns over their potential effects on human health and the environment. Filtration technology is widely used to remove contaminants such as heavy metals because it is a low-cost wastewater treatment device that uses physical methods that are simple and effective. In this study, coconut composite activated carbon (CCAC) filter media has been explored for its adsorption abilities towards copper and zinc solutions from metal working fluids. The characteristic of CCAC was investigated using XRF analyser, SEM and FTIR analysis. This study described the performance of fixed-bed column filtration by using CCAC as the filter media under the effect of various bed heights (10,30,50 cm) and initial concentration of copper and zinc (10 and 20 mg/L) to assess the breakthrough curve. The results show that the CCAC surface is not smooth and porous, with many channels. It is connected to hydrogen linked, O-H and contains the highest value composition in MgCO3 and CaCO3, which enhances metal precipitation removal of heavy metals. From the fixed-bed column study, the column with an initial copper and zinc concentration of 10mg/L and a bed height of 50 cm performed well in removing copper and zinc from synthetic copper and zinc solutions. The breakthrough and exhaustion times were less than 30 minutes and 3660 minutes for copper and zinc were less than 30 minutes and 3420 minutes respectively. The longer the lifespan of filter media, the better the filter media for heavy metal treatment. In conclusion, CCAC filter media was used as an alternative to the existing wastewater treatment process to remove copper and zinc from metal working fluids. It also can be applied in the current filtration system, especially for industrial Wastewater Treatment Plant (WWTP).

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Section: Coconut Composite Activated Carbon (Ccac) Characterizationmentioning

confidence: 99%

Removal of copper and zinc in metal working fluid using coconut composite filter media

Aziz

Akbar

Bakar

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Most of our stations have negative values of Igeo indicating that the core sediments were unpolluted (Figure 3). The determination of the Contamination Factor (CF) is an important aspect to know the degree of heavy metals risk to the environment in relation to its retention period 36 . The result of Igeo on Pb was further supported by CF output which classified sediments as moderately contaminated with the metal at certain depths in all stations instead of several stations.…”

Section: Pollution Status Assessmentmentioning

confidence: 99%

“…Despite its important function, Malaysia has yet to establish its own specific sediment quality guideline to be followed 13 . Therefore, researchers commonly employed internationally established guidelines such as Interim Sediment Quality Guidelines, ISQG invented by Chapman et al, 14 and Sediment Quality Guidelines (SQG) of effect range-low (ERL) and effect range-median (ERM) from Long et al, 15 to asses Malaysia sediment.…”

Section: Introductionmentioning

confidence: 99%

Vertical Distributions of Zn, Cd, Pb and Cu at Tropical Coastal Sediments: In Case of West Coast of Peninsular Malaysia

2022

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The level and pollution status of Zn, Cd, Pb, Cu in sediment cores of Bagan Pasir estuary, Sungai Buloh estuary, and the coastline of Port Dickson was assessed. Based on the vertical profiles of metals concentrations, the order of metals’ concentration in decreasing manner was Zn>Pb>Cu>Cd at Bagan Pasir and Sungai Buloh stations, while Zn>Cu>Pb>Cd at Port Dickson station. Most of the analyzed metals were below the Interim Sediment Quality Guidelines and the effect range-low (ERL) at all sampling stations. The results of geo-accumulation index, contamination factor and pollution load index classified the sediments quality as unpolluted with studied metals with the exception of the element Pb at certain depths of the sediment cores as well as historical pollution at bottom sediment at Sungai Buloh station. Therefore, metal concentrations in the sediments of these stations were not at an alarming stage, however, requires regular monitoring from the authorities to maintain sustainable management of these areas especially at Sungai Buloh due to anthropogenic activities.

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Application of enrichment factor, geoaccumulation index, and ecological risk index in assessing the elemental pollution status of surface sediments

Looi

Aris

Yusoff

et al. 2018

Environ Geochem Health

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Sediment can accumulate trace elements in the environment. This study profiled the magnitude of As, Ba, Cd, Co, Cu, Cr, Ni, Pb, Se, and Zn pollution in surface sediments of the west coast of Peninsular Malaysia. Trace elements were digested using aqua regia and were analyzed using the inductively coupled plasma-mass spectrometry. The extent of elemental pollution was evaluated using with the enrichment factor (EF) and geoaccumulation index (I). This study found that the elemental distribution in the sediment in descending order was Zn > Ba > Cr > Pb > Cu > As > Ni > Co > Se > Cd. Zn concentrations in all samples were below the interim sediment quality guideline (ISQG) (124 mg/kg). In contrast, Cd concentrations (2.34 ± 0.01 mg/kg) at Station 31 (Merlimau) exceeded the ISQG (0.70 mg/kg), and the concentrations of As in the samples from Station 9 (Tanjung Dawai) exceeded the probable effect level (41.60 mg/kg). The I and EF revealed that Station 9 and Station 31 were extremely enriched with Se and Cd, respectively. All stations posed low ecological risk, except Station 31, which had moderate ecological risk. The outputs from this study are expected to provide the background levels of pollutants and help develop regional sediment quality guideline values. This study is also important in aiding relevant authorities to set priorities for resources management and policy implementation.

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Heavy Metals Pollution and Ecological Risk Assessment in Surface Sediments of West Coast of Peninsular Malaysia

Cited by 7 publications

References 30 publications

Removal of copper and zinc in metal working fluid using coconut composite filter media

Removal of copper and zinc in metal working fluid using coconut composite filter media

Vertical Distributions of Zn, Cd, Pb and Cu at Tropical Coastal Sediments: In Case of West Coast of Peninsular Malaysia

Application of enrichment factor, geoaccumulation index, and ecological risk index in assessing the elemental pollution status of surface sediments

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