Natural sorption capability of heavy metals: Granitic residual soil from Broga and marine clay from Sg. Besar Selangor


Author : Wan Zuhairi Wan Yaacob, Abdul Rahim Samsudin, Mohd Ramziemran & Chan Yik LoonPublication : Bulletin of the Geological Society of MalaysiaVolume : 48Page : 13-16Year : 2004


Description

Bulletin of the Geological Society of Malaysia, Volume 48, June 2004, pp. 13-16

 

Natural sorption capability of heavy metals: Granitic residual soil from Broga and marine clay from Sg. Besar Selangor

WAN ZUHAIRI WAN YAACOB, ABDUL RAHIM SAMSUDIN, MOHD RAMZIEMRAN & CHAN YIK LOON

School of Environmental Science and Natural Resources, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Darul Ehsan

 

Abstract: The study aims to investigate sorption capability of heavy metals (HMs), i.e. lead (Pb), copper (Cu), nickel (Ni) and zinc (Zn) by two soil types; granite residual soils from Broga (BRG) and marine clay soils from Sg. Besar (SBMC). All samples were subjected to physico-chemical properties and batch equilibrium tests (BET). The physic-chemical test results show that SBMC soils have high pH, high clay content, high CEC and SSA values and montmorillonite. In contrast, BRG soils have low pH, low clay content, low CEC and SSA values and contain mainly kaolinite and illite. Sorption tests (BET) show that SBMC soils have higher sorption for HMs compared to BRG soils. The sorption capability of these soils is greatly controlled by their physico-chemical properties.

 

Abstrak: Kajian bertujuan untuk menentukan kapasiti penjerapan terhadap logam berat plumbum (Pb), kuprum (Cu), nikel (Ni) dan zink (Zn) oleh dua jenis tanah iaitu tanah baki granit dari Broga (BRG) dan lempung marin dari Sg. Besar (SBMC). Ujian sifat fiziko-kimia tanah dan ujian penjerapan berkelompok (BET) dijalankan ke atas semua sampel. Hasil ujian fiziko-kimia menunjukkan tanah SBMC mempunyai nilai pH yang tinggi, kandungan lempung dan nilai CEC-SSA yang tinggi dan kehadiran mineral lempung montmorilonit. Manakala tanah BRG mempunyai pH, kandungan lempung dan nilai CEC-SSA yang lebih rendah, serta mineral lempung koalinit dan ilit. Hasil ujian penjerapan (BET) menunjukkan tanah SBMC mempunyai keupayaan penjerapan yang lebih baik berbanding dengan tanah BRG. Keupayaan penjerapan tanih ini sangat dipengaruhi oleh sifat fiziko-kimia.

https://doi.org/10.7186/bgsm48200403