Occurrence, Fate and Treatment Methods of Polycyclic Aromatic Hydrocarbons, Polychlorinated Biphenyls, Dioxins and Furans: A Mini Review

Ayanda, Olushola Sunday

doi:10.4172/2321-6212.1000129

Res. Rev. J Mat. Sci

2014

DOI: 10.4172/2321-6212.1000129

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Occurrence, Fate and Treatment Methods of Polycyclic Aromatic Hydrocarbons, Polychlorinated Biphenyls, Dioxins and Furans: A Mini Review

Olushola Sunday Ayanda¹

Abstract: Polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), dioxins and furans are persistent organic pollutants with well-known toxicity and carcinogenic activity. These organic pollutants have the tendency to bioaccumulate, present little or no biodegradation and subsequently, could cause a menace to the ecosystems and human health. This review discusses the occurrence, fate and toxic effect of PAHs, PCBs, dioxins and furans. It also examines the most important advances in the treatment of wat… Show more

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Cited by 2 publications

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Surfactant modified waste ash for the removal of chloro and nitro group substituted benzene from wastewater

Mushtaq

Aslam

Ali

et al. 2022

Water Science and Technology

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A surfactant-modified coal fly ash was developed as a multifunctional adsorbent for the removal of organic pollutants from wastewater. Sodium dodecyl sulfate (SDS) was used to modify the surface of coal fly ash (CFA). The modified CFA was characterized using Scanning Electron Microscopy (SEM), surface porosity analyzer, Thermogravimetric analysis (TGA) and Fourier transform Infrared (FTIR) spectroscopy. The results showed that loading CFA with SDS not only improved the functionality and surface morphology of the raw ash for the adsorption of organic pollutants, but also enhanced its thermal stability. The efficiency of the modified fly ash was tested in terms of removal of two non-polar organic pollutants namely chlorobenzene (CB) and nitrobenzene (NB) from aqueous phase. The maximum uptake capacity of chlorobenzene and nitrobenzene with SDS-modified coal fly ash (SCFA) was 225 mg/g and 90 mg/g respectively. The kinetic analysis was done by controlled kinetic models i.e., pseudo first and second order kinetic models. The results showed that adsorption of CB and NB onto SCFA followed a pseudo second order kinetic model. The adsorption of chlorobenzene was exothermic over the modified adsorbent while nitrobenzene showed an endothermic behavior. The isotherm analysis depicted the multilayer adsorption of both pollutants onto the surface of the surfactant modified adsorbent. This work has shown that surface modification using surfactants can be a viable option to enhance the adsorption capacity of fly ash for pollutants removal.

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Surfactant modified waste ash for the removal of chloro and nitro group substituted benzene from wastewater

Mushtaq

Aslam

Ali

et al. 2022

Water Science and Technology

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Mass transfer and thermodynamic analysis on the removal of naphthalene from aqueous solution using oleic acid modified palm shell activated carbon

Kumar¹,

Amarnath²,

Kumar³

et al. 2018

Desalination and Water Treatment

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Occurrence, Fate and Treatment Methods of Polycyclic Aromatic Hydrocarbons, Polychlorinated Biphenyls, Dioxins and Furans: A Mini Review

Cited by 2 publications

References 41 publications

Surfactant modified waste ash for the removal of chloro and nitro group substituted benzene from wastewater

Surfactant modified waste ash for the removal of chloro and nitro group substituted benzene from wastewater

Mass transfer and thermodynamic analysis on the removal of naphthalene from aqueous solution using oleic acid modified palm shell activated carbon

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