Volume 19, Issue 10 (1-2021)
JRUMS 2021, 19(10): 1015-1034 |
Back to browse issues page
Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Zarei Mahmudabadi T, Ebrahimi A, Ehrampoush M, Eslami H. Investigating the Effect of Coagulation and Flocculation - Adsorption Process on Boron Removal from Industrial Wastewater (Case Study: Ceramic Tile Industry). JRUMS 2021; 19 (10) :1015-1034
URL: http://journal.rums.ac.ir/article-1-5612-en.html
URL: http://journal.rums.ac.ir/article-1-5612-en.html
Occupational Environment Research Center, Department of Environmental Health Engineering, School of Health, Rafsanjan University of Medical Sceiences, Rafsanjan, Iran
Full-Text [PDF 761 kb]
(952 Downloads)
| Abstract (HTML) (2355 Views)
Full-Text: (1944 Views)
Investigating the Effect of Coagulation and Flocculation - Adsorption Process[VG1] on Boron Removal from Industrial Wastewater (Case Study: Ceramic Tile Industry)
T. Zarei Mahmudabadi[1], A. A. Ebrahimi[2], M. H. Ehrampoush[3], H. Eslami[4]
Received:06/10/2020 Sent for Revision: 30/11/2020 Received Revised Manuscript:23/12/2020 Accepted: 26/12/2020
Background and Objectives: Boron is widely found in raw materials and wastewater of the tile industry and its removal from aquatic environments is very complex. The aim of this study was to remove boron from wastewater of ceramic tile industry using coagulation and flocculation-adsorption process.
Materials and Methods: This was an experimental study. Initially, for the coagulation process, pH parameters between 5 to 11, concentrations of 150 to 450 mg/L of poly-aluminum chloride (PAC) and concentrations of 0.5 to 2.5 mg/L of anionic and cationic polymers were examined. Then, in the adsorption process, the effect of pH between 2 to 7 at contact times of 5 to 20 min was investigated. Finally, the data were analyzed using Pearson’s correlation test.
Results: The results showed that the percentage of boron removal by poly-aluminum chloride at the optimum pH equal 8 and the concentration of 400 mg/L was 35.7% and in combination with 1.5 and 2.5 mg/L anionic and cationic polymer, removal efficiency of 54.2 % (from 35 to 16 mg/L) was observed. Then, in the adsorption process with an optimum pH equal 5 and contact time of 15 minutes, removal efficiency of 50% (from 16 to 8 mg/L) was obtained. Examination of isotherms in the adsorption process showed that boron adsorption follows the Freundlich isotherm and first-degree kinetics.
Conclusion: According to the results, the combined process of coagulation and flocculation with adsorption can be introduced as an effective process in boron removal.
Key words: Coagulation, Flocculation, Adsorption, Boron, Industrial wastewater
Funding: This research was funded by Shahid Sadoughi University of Medical Sciences, Yazd.
Conflict of interest: None declared
Ethical approval: The study was approved by the Ethics Committee of Shahid Sadoughi University of Medical Sciences (IR.SSU.SPH.REC.1394.15).
How to cite this article: Zarei Mahmudabadi T, Ebrahimi A A, Ehrampoush M H, Eslami H. Investigating the Effect of Coagulation and Flocculation-Adsorption Process on Boron Removal from Industrial Wastewater: (Case study: Ceramic Tile Industry). J Rafsanjan Univ Med Sci 2021; 19 (10): 1015-34. [Farsi]
[1]- MSc, Dept. of Environmental Health Engineering, Environmental Science and Technology Research Center, School of Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran, ORCID: 0000-0003-2504-9399
T. Zarei Mahmudabadi[1], A. A. Ebrahimi[2], M. H. Ehrampoush[3], H. Eslami[4]
Received:06/10/2020 Sent for Revision: 30/11/2020 Received Revised Manuscript:23/12/2020 Accepted: 26/12/2020
Background and Objectives: Boron is widely found in raw materials and wastewater of the tile industry and its removal from aquatic environments is very complex. The aim of this study was to remove boron from wastewater of ceramic tile industry using coagulation and flocculation-adsorption process.
Materials and Methods: This was an experimental study. Initially, for the coagulation process, pH parameters between 5 to 11, concentrations of 150 to 450 mg/L of poly-aluminum chloride (PAC) and concentrations of 0.5 to 2.5 mg/L of anionic and cationic polymers were examined. Then, in the adsorption process, the effect of pH between 2 to 7 at contact times of 5 to 20 min was investigated. Finally, the data were analyzed using Pearson’s correlation test.
Results: The results showed that the percentage of boron removal by poly-aluminum chloride at the optimum pH equal 8 and the concentration of 400 mg/L was 35.7% and in combination with 1.5 and 2.5 mg/L anionic and cationic polymer, removal efficiency of 54.2 % (from 35 to 16 mg/L) was observed. Then, in the adsorption process with an optimum pH equal 5 and contact time of 15 minutes, removal efficiency of 50% (from 16 to 8 mg/L) was obtained. Examination of isotherms in the adsorption process showed that boron adsorption follows the Freundlich isotherm and first-degree kinetics.
Conclusion: According to the results, the combined process of coagulation and flocculation with adsorption can be introduced as an effective process in boron removal.
Key words: Coagulation, Flocculation, Adsorption, Boron, Industrial wastewater
Funding: This research was funded by Shahid Sadoughi University of Medical Sciences, Yazd.
Conflict of interest: None declared
Ethical approval: The study was approved by the Ethics Committee of Shahid Sadoughi University of Medical Sciences (IR.SSU.SPH.REC.1394.15).
How to cite this article: Zarei Mahmudabadi T, Ebrahimi A A, Ehrampoush M H, Eslami H. Investigating the Effect of Coagulation and Flocculation-Adsorption Process on Boron Removal from Industrial Wastewater: (Case study: Ceramic Tile Industry). J Rafsanjan Univ Med Sci 2021; 19 (10): 1015-34. [Farsi]
[2]- Associate Prof., Dept. of Environmental Health Engineering, Environmental Science and Technology Research Center, School of Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran, ORCID: 0000-0001-8542-5291
[3]- Prof., Dept. of Environmental Health Engineering, Environmental Science and Technology Research Center, School of Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran, ORCID: 0000-0002-0388-3211
[4]- Assistant Prof., Occupational Environment Research Center, Dept., of Environmental Health Engineering, School of Health, Rafsanjan University of Medical Sciences, Rafsanjan, Iran, ORCID:0000-0001-5137-4764
(Corresponding Author) Tel: (034) 34259176, Fax: (034) 34259176, E-mail: Hadieslami1986@yahoo.com
(Corresponding Author) Tel: (034) 34259176, Fax: (034) 34259176, E-mail: Hadieslami1986@yahoo.com
Type of Study: Research |
Subject:
Environmental Health
Received: 2020/10/4 | Accepted: 2020/12/27 | Published: 2021/01/21
Received: 2020/10/4 | Accepted: 2020/12/27 | Published: 2021/01/21
Send email to the article author
| Rights and permissions | |
 |
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
