Study of metal pollution in Sembrong River, Johor, Malaysia

Latiff, Ab Aziz Abdul; Karim, Ahmad Tarmizi Abdul; Muhamad, Aida; Hashim, Nor Haslina; Hung, Yung Tse

doi:10.1504/ijee.2009.027983

Cited by 1 publication

(1 citation statement)

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“…Adsorption of soil components, as well as chemical and biological degradation [10][11][12]. The concentration of PAEs adsorption over sediment is important to influence PAEs fate and behavior [13]. PAEs adsorption depends on mechanisms such as physical adsorption, van der Waals and H bonds interactions depending on the properties of both sediment particles and PAEs.…”

Section: Introductionmentioning

confidence: 99%

Adsorption Isotherms of Dimethyl Phthalate (DMP), DiEthyl Phthalate (DEP), Dibutyl Phthlate (DBP) and Benzyl Butyl Phthalate (BBP) Compounds in Synthetic and Sembrong River Sediment

Rapok

Karim

Hashim

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Concentrations of Dimethyl Phthalate (DMP), Diethyl Phthalate (DEP), Dibutyl Phthlate (DBP), and Benzyl Butyl Phthalate (BBP) analysis proved present in Sembrong river sediment. These findings occurred during a certain extent of time depending on the properties of sediment and phthalates esters compound. Therefore, adsorption isotherm conducted using optimization method using manipulating variables of initial concentrations and contact times. The results analysis showed higher percentage adsorption recorded in DMP, DEP, DBP and BBP compounds by synthetic sediment which is 88.3%,89.6%,89.0% and 94.8% whereas river sediment is 87.4%,88.4%, 87.1% and 93.4%. The contributing factors aided in the adsorption of PAEs onto synthetic sediment are higher organic content (OC), smaller particle size having larger surface area and higher molecular weight of PAEs. Competitive adsorption occurred between DMP, DEP and DBP as they are low molecular weight compounds. Adsorption isotherms models by Langmuir and Freundlich isotherms models showed separation factor, RL values are favourable from 0.11 to 0.69. Good statistical fit R2 ranged from 0.97 to 0.99 of a good fit. Therefore, in conclusion, Sembrong river sediment is an adsorbent sediment storage of PAEs compounds.

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Section: Introductionmentioning

confidence: 99%