Repository of Research and Investigative Information

Repository of Research and Investigative Information

Ilam University of Medical Sciences

Optimization of coagulation-flocculation process for turbidity removal using response surface methodology: a study in Ilam water treatment plant, Iran

Sun Oct 2 07:35:21 2022

(2019) Optimization of coagulation-flocculation process for turbidity removal using response surface methodology: a study in Ilam water treatment plant, Iran. Desalination and Water Treatment. pp. 234-242. ISSN 1944-3994

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Abstract

Coagulation-flocculation is an important process in removing suspended and colloidal matter from water in treatment plants. In this batch study, response surface methodology (RSM) was used to investigate the interactive influences between selected operating parameters of coagulant and coagulant aid dosage as well as pH for an optimized condition of turbidity removal from Ilam wastewater treatment plant based on data from jar tests. In this study, two common coagulants including aluminum sulfate and ferric chloride were used. LT25 and LT27 were applied as coagulant aids. Aluminum sulfate yielded highest turbidity removal at a dosage of 5 mg L-1 at pH 7. For ferric chloride, the maximum efficiency was observed at dosage 5 mg L-1 at pH 9. Application of aluminum sulfate in the presence of LT27 showed the highest turbidity removal among the studied reagents, and the efficiency increased with the increase in dosage. Based on the results of the present study, aluminum sulfate generally yielded a higher turbidity removal. But, ferric chloride formed larger flocs. Moreover, LT27 had a higher efficiency compared with LT25. Finally, the RSM was indicated as an appropriate tool for the optimization of the coagulation-flocculation process by confirmation experiments.

Item Type: Article
Creators:
CreatorsEmail
Mazloomi, S.UNSPECIFIED
Zarei, A.UNSPECIFIED
Nourmoradi, H.UNSPECIFIED
Ghodsei, S.UNSPECIFIED
Amraei, P.UNSPECIFIED
Haghighat, G. A.UNSPECIFIED
Keywords: Water treatment Turbidity Coagulation Aluminum sulfate Ferric chloride aqueous-solution adsorptive removal efficient removal effluent fluoride acid aids nanoparticles phosphorus pollutants Engineering Water Resources
Divisions:
Page Range: pp. 234-242
Journal or Publication Title: Desalination and Water Treatment
Journal Index: ISI
Volume: 147
Identification Number: https://doi.org/10.5004/dwt.2019.23698
ISSN: 1944-3994
Depositing User: مهندس مهدی شریفی
URI: http://eprints.medilam.ac.ir/id/eprint/2253

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