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Chemical Science International Journal, 2456-706X,Vol.: 18, Issue.: 3


Removal of Aniline and from Aqueous Solutions by Coagulation/Flocculation–Flotation


Shahin Ahmadi1*, Ferdos Kord Mostafapour2 and Edris Bazrafshan2

1Department of Environmental Health, School of Public Health, Zabol University of Medical Sciences, Zabol, Iran.

2Department of Environmental Health, School of Public Health, Zahedan University of Medical Sciences, Zahedan, Iran.

Article Information
(1) Say Leong Ong, Civil and Environmental Engineering Department And NUS Environmental Research Institute, National University of Singapore (NUS), Singapore.
(2) Nagatoshi Nishiwaki, Kochi University of Technology, Japan.
(1) Ageng Trisna Surya Pradana Putra, State Islamic University of Sultan Maulana Hasanuddin, Indonesia.
(2) Vito Rizzi, University of Bari, Italy.
Complete Peer review History: http://www.sciencedomain.org/review-history/18159


The aim of this study was to evaluate the efficiency of the coagulation/ flocculation and flotation process for aniline removal from aqueous solutions, which the dissolved air flotation (DAF) was applied in laboratory scale. After determination of the optimal condition of pH and the dosage of Polyaluminum chloride by coagulation/ flocculation process, the effect of the effective parameters including the concentration of the coagulant, coagulation time, flotation time and saturation pressure on the removal efficiency of the aniline and COD By dissolved air flotation was studied. The DAF process can reduce COD and aniline up to 89.6% and 95%, respectively. The optimum condition was as follows: pH=6, initial concentration of aniline= 200 mg/L, flocculation time = 10 min, flotation time= 20 sec, the pressure= 4 atm and PAC concentration of 20 mg/L. The coagulation/ flocculation -flotation (DAF) processes can an effective method to remove the aniline from aqueous solution.

Keywords :

Aniline; coagulation; flocculation; flotation; removal.

Full Article - PDF    Page 1-10 Article Metrics

DOI : 10.9734/CSJI/2017/32016

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