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http://dx.doi.org/10.17576/jsm-2019-4811-10
Statistical Evaluation of Landfill Leachate
System and Its Impact on Groundwater and Surface Water in Malaysia (Penilaian Statistik Sistem Air Larut Resap Tapak
Pelupusan Sampah
dan Kesannya terhadap
Air Bawah Tanah dan
Air Permukaan di Malaysia) TAWFIQ J.H.
BANCH1,
MARLIA
M.
HANAFIAH1,2*,
ABBAS
F.M.
ALKARKHI3
& SALEM S. ABU
AMR3 1Center for Earth Sciences and Environment,
Faculty of Science and Technology, Universiti
Kebangsaan Malaysia, 43600 UKM Bangi, Selangor Darul Ehsan, Malaysia 2Centre for Tropical Climate Change
System, Institute of Climate Change, Universiti
Kebangsaan Malaysia, 43600 UKM Bangi, Selangor Darul Ehsan, Malaysia 3Malaysian Institute of Chemical
& Bioengineering Technology, Universiti
Kuala Lumpur (UniKL, MICET), 78000 Melaka,
Malaysia Diserahkan: 4 April 2019/Diterima: 15 Ogos 2019 ABSTRACT 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 (Fe2+,
Zn2+, Cu2+, Cr2+,
Cd2+, Pb+, As3+,
Co2+ and Mn2+) and twelve physiochemical
parameters (Mg2+, Ca2+, Na+, chemical
oxygen demand (COD), biochemical oxygen demand (BOD),
total dissolved solids (TDS), total suspended solids (TSS),
electrical conductivity (EC), pH, ammoniacal
nitrogen (NH3-N) and dissolved oxygen (DO).
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. Keywords: Cluster analysis;
correlation matrix; descriptive statistics; heavy metals; landfill
site; leachate ABSTRAK Dalam 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 (Fe2+,
Zn2+, Cu2+, Cr2+,
Cd2+, Pb+, As3+,
Co2+ dan Mn2+)
dan dua belas
parameter fizikokimia (Mg2+,
Ca2+, Na+, permintaan
oksigen kimia
(COD),
permintaan oksigen
biokimia (BOD), jumlah
pepejal terlarut
(TDS),
jumlah pepejal
terampai (TSS), konduktiviti
elektrik (EC), pH, ammonia
nitrogen (NH3-N) 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 kelompok ketiga
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 RUJUKAN Abdul
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