Groundwater quality at two landfill sites in Selangor, Malaysia

Taha, Mohd Raihan; Zuhairi, W. Y. Wan; Yaacob, Wan Zuhairi Wan; Yaakob, Jasni

doi:10.7186/bgsm57201103

Cited by 23 publications

(10 citation statements)

References 1 publication

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“…There have been various studies in Malaysia that have discovered the effects of potentially toxic elements in the soil of an operating landfill, but few works have reported this information for closed landfill sites (Agamuthu and Fauziah 2010;Hussein et al 2021;Mohd Adnan et al 2013;Sakawi et al 2013;Syahirah et al 2013;Taha et al 2011;Yusoff et al 2013).…”

Section: Development Of a Kriging Assessment Framework And Impact Pat...mentioning

confidence: 99%

Development of a kriging assessment framework and impact pathway for researching contamination with potentially toxic elements in urban landfill soil

Bakar

Yoneda

Mahmood

2022

Preprint

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Landfill post-closure with contaminant concentration in soil below permissible limit assessed at limited spot does not represent the contamination issue. Therefore sizeable, qualitative, and cost-effective analysis of the concentrations of contaminants is needed and this work recommends kriging assessment and the logical impact pathway framework as factors of change in landfill aftercare management. The kriging framework is developed utilising lead (Pb) and chromium (Cr) data from inductively coupled plasma mass spectrometry (ICP-MS) analysis. The development of the kriging framework is conducted based on the observation of censored data from ICP-MS analysis. The estimation analysis involves the analysis of ordinary kriging with regression analysis, showing the interpolation of spatial correlation and regression error. Hence, ordinary kriging with regression of the variable of interest, i.e., Pb, using the data of the explanatory variable, i.e., Cr, is inappropriate. Further investigation with the utilisation of guess-field kriging analysis hypothetically exposed a potential contaminated area using an existing but limited number of explanatory variables; although, guess-field kriging may possibly result immense uncertainty at the area where the explanatory variable does not exist. Besides, this work anticipated outcomes in societal impact and sustainability practices from the proposed kriging framework by recommending a logical impact pathway. The development of the kriging framework and impact pathway reassure the necessary actions to be executed by responsible parties and act as the stimulus of a wider spectrum of improvement initiatives to oversee real issues, such as the time of occurrence, and to prevent negative impacts on the environment and humans.

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Section: Development Of a Kriging Assessment Framework And Impact Pat...mentioning

confidence: 99%

Development of a kriging assessment framework and impact pathway for researching contamination with potentially toxic elements in urban landfill soil

Bakar

Yoneda

Mahmood

2022

Preprint

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“…During operation, ATCL received approximately 100 tons of solid waste per day. A total of 500,000 tons of solid waste was disposed of at a site (Taha et al 2011). The site is fully closed in 2010 following the opening of the new sanitary landfill in August 2014 (Rashid et al 2018).…”

Section: Sampling and Site Characteristicsmentioning

confidence: 99%

Statistical Evaluation of Landfill Leachate System and its Impact on Groundwater and Surface Water in Malaysia

Banch¹,

Hanafiah²,

Alkarkhi³

et al. 2019

JSM

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In this study, leachate collection and processing system in Ampar Tenang Closed Landfill (ATCL) and its impact on both groundwater and surface water was evaluated. Samples from three locations in leachate processing system (Collection, aeration and stabilization ponds), groundwater and surface water were collected and tested for twenty-one parameters covering nine heavy metals (Fe Correlation analysis for landfill leachate ponds, groundwater and surface water showed different patterns of relationships between all possible combinations of two parameters. Similarity and dissimilarity were studied through cluster analysis, three clusters were found to entirely separate the collection pond (cluster 1) while the two ponds were clustered with groundwater samples (cluster 2) and the third cluster is for the surface water. This study shows the benefit of statistical analysis such as correlation analysis and cluster analysis for evaluation and interpretation of landfill data to understand the behavior of the selected parameters and to have a clear picture about the pattern of the relationship for effective landfill management. ABSTRAKDalam kajian ini, sistem pengumpulan dan pemprosesan air larut resap di Tapak Pelupusan Tertutup Ampar Tenang (ATCL) dan kesannya terhadap air bawah tanah dan air permukaan telah dinilai. Sampel daripada tiga lokasi dalam sistem pemprosesan air larut resap (kolam pengumpulan, pengudaraan dan penstabilan), air bawah tanah dan air permukaan diperoleh dan diuji untuk dua puluh satu parameter iaitu sembilan jenis logam berat (Fe dan oksigen terlarut (DO)). Analisis korelasi untuk kolam air larut resap, air bawah tanah dan air permukaan menunjukkan corak hubungan yang berbeza antara semua kemungkinan gabungan dua parameter. Persamaan dan ketidaksetaraan dikaji melalui analisis kelompok dan tiga kelompok didapati memisahkan kolam pungutan sepenuhnya (kelompok 1) manakala dua kolam berkumpul dengan sampel air bawah tanah (kelompok 2) dan kelompokketiga adalah untuk air permukaan. Analisis statistik seperti analisis korelasi dan analisis kelompok untuk penilaian dan pentafsiran data tapak pelupusan sampah dapat membantu dalam memahami ciri-ciri parameter terpilih dan untuk mendapatkan gambaran yang jelas mengenai corak perhubungan bagi pengurusan tapak pelupusan sampah yang berkesan.Kata kunci: Air larut resap; analisis kelompok; logam berat; matriks korelasi; statistik diskriptif; tapak pelupusan sampah

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“…The landfill zone is bordered primarily by oil palm plantation, and housing projects are being developed in adjacent areas. The landfill site (a closed open-tipping site which was then upgraded to a controlled waste disposal site without a proper liner system) started operation in the year 2000 and ended it in 2010 (it has been closed for less than 10 years); it received about 100 tonnes of domestic waste per day [5]. Both landfills were first operated by local authorities and then privatised with a concession period to manage the operation or closure of the site.…”

Section: Closed Landfills (Sanitary and Non-sanitary)mentioning

confidence: 99%

Development of Assessment for Potentially Toxic Element Contamination Indicator in Closed Landfills and Prospective Geostatistical Analysis

Bakar¹,

Yoneda

Thương

et al. 2019

GEOMATE

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Post-closure management of landfill in Malaysia does not include assessment of the contaminant level in abiotic and biotic factors that inhabit the aged topsoil of closed landfills. Considering the bioaccumulation effect in the ecosystem, post-closure classification with the status of contaminant concentration below the permitted level does not promise safe closure to the ecosystem as time passes. Thus, substantial and constant qualitative analysis of contaminant concentration needs to be developed for sustainable management of landfill post-closure. In this work, heavy metals in common constituents (abiotic and biotic factors) of closed landfills were selected; that is, soil, stagnant water, and common communities of plant species in closed landfills in Selangor, both sanitary and non-sanitary, were studied. The results of the analysis demonstrated that the concentration of Cd was not detected in the soil of both landfills but the highest concentration was present in the leaves of Ageratum conyzoides compared to other plant species at both study sites. A parallel situation was discovered for the non-detection of Cd concentration in stagnant water at Ampar Tenang landfill, but the leaves of A. conyzoides contained this element. The sensitivity and affinity of A. conyzoides for accumulating heavy metals in this study were revealed particularly for Cd. Hence, this study suggests the use of A. conyzoides as a promising trace metals contamination indicator for closed urban landfills. Additionally, Guess-Field Kriging is believed to be a useful geostatistical tool to interpolate potential contamination area by utilising the abiotic and biotic factors as assistant variable to the target variable i.e. soil.

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Groundwater quality at two landfill sites in Selangor, Malaysia

Cited by 23 publications

References 1 publication

Development of a kriging assessment framework and impact pathway for researching contamination with potentially toxic elements in urban landfill soil

Development of a kriging assessment framework and impact pathway for researching contamination with potentially toxic elements in urban landfill soil

Statistical Evaluation of Landfill Leachate System and its Impact on Groundwater and Surface Water in Malaysia

Development of Assessment for Potentially Toxic Element Contamination Indicator in Closed Landfills and Prospective Geostatistical Analysis

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