Removal of organic pollutants from super heavy oil wastewater by lignite activated coke

Kun Tong; Yihe Zhang; Dan Fu; Xianghai Meng; Qi An; Paul K. Chu

doi:10.1016/j.colsurfa.2014.01.062

Author(s)

Kun Tong
Yihe Zhang
Dan Fu
Xianghai Meng
Qi An

Detail(s)

Original language	English
Pages (from-to)	120-130
Journal / Publication	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	447
Online published	30 Jan 2014
Publication status	Published - 5 Apr 2014

Link(s)

DOI	DOI https://doi.org/10.1016/j.colsurfa.2014.01.062 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84894314244&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(ac59b19f-b762-4d0c-b988-b89189915b39).html

Abstract

Extraction of organic pollutants from super heavy oil wastewater (SHOW) by lignite activated coke (LAC) is investigated. The factors studied include the exposure time, temperature, and different pollutant concentrations in the wastewater. The equilibrium adsorption data are analyzed by the Langmuir, Freundlich, Temkin and Dubinin-Radushkevich (D-R) isotherms. The best match is obtained by the Freundlich isotherm and a chemical mechanism is suggested based on the D-R model. The adsorption kinetics follows the pseudo second order model and the mass transfer model suggests that external and intra-particle diffusion influences the adsorption process. Thermodynamics studies show that adsorption of organic materials is spontaneous at high temperature (303 and 313K) but not so at lower temperature (293K) and reveals an endothermic process and increase in randomness during adsorption. The pilot dynamic adsorption test indicates that LAC can remove not only organic pollutants such as COD, NH₃-N, oils, but also inorganic pollutants such as Mg²⁺, Ca²⁺, and salts. © 2014 Elsevier B.V.

Research Area(s)

Adsorption, Lignite activated coke, Organic pollutants, Super heavy oil wastewater

Citation Format(s)

[ RIS ] [ BibTeX ]

Removal of organic pollutants from super heavy oil wastewater by lignite activated coke. / Tong, Kun; Zhang, Yihe; Fu, Dan et al.
In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 447, 05.04.2014, p. 120-130.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Tong, K, Zhang, Y, Fu, D, Meng, X, An, Q & Chu, PK 2014, 'Removal of organic pollutants from super heavy oil wastewater by lignite activated coke', Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol. 447, pp. 120-130. https://doi.org/10.1016/j.colsurfa.2014.01.062

Tong, K., Zhang, Y., Fu, D., Meng, X., An, Q., & Chu, P. K. (2014). Removal of organic pollutants from super heavy oil wastewater by lignite activated coke. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 447, 120-130. https://doi.org/10.1016/j.colsurfa.2014.01.062

Tong K, Zhang Y, Fu D, Meng X, An Q, Chu PK. Removal of organic pollutants from super heavy oil wastewater by lignite activated coke. Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2014 Apr 5;447:120-130. Epub 2014 Jan 30. doi: 10.1016/j.colsurfa.2014.01.062

Tong, Kun ; Zhang, Yihe ; Fu, Dan et al. / Removal of organic pollutants from super heavy oil wastewater by lignite activated coke. In: Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2014 ; Vol. 447. pp. 120-130.