Research Article

Calcium removal from calcium rich paper mill wastewater by microbial CaCO3 precipitation

Volume: 21 Number: 1 March 15, 2019
TR EN

Calcium removal from calcium rich paper mill wastewater by microbial CaCO3 precipitation

Abstract

High concentrations of calcium present in paper mill wastewaters are considered as they lead to some important problems during the treatment process. Recently, submerged membrane bioreactor (sMBR) system have been commonly used to industrial wastewater treatment and it is observed that membrane scaling or fouling is one of the most important problems which causes many operational difficulties. A decrease in membrane flux is observed after the formation of CaCO3 film on the membrane surface as inorganic membrane fouling is encountered during the operation of the sMBR. Microbial carbonate precipitation (MCP) process is a natural microbial process and the mechanism of MCP is defined as the ability of microorganism to alkalinise an environment through various physiological activities. The purpose of this study was to investigate the application of MCP to paper-mill wastewater as a pre-treatment method prior to submerged membrane bioreactor. The potential for CaCO3 removal from wastewater through urea was investigated at optimum operation conditions obtained from the batch tests using a sequencing batch reactor (SBR). The optimum dosage of urea and HRT were determined 4 g/L and 72 h. The results obtained indicated that the calcium removal efficiency was found to be 90.16% at optimum experimental conditions in the SBR operation. It was found out that the MCP was a suitable method for calcium removal and it can be used as a pre-treatment method of paper-mill wastewater treatment to avoid calcium scaling and inorganic fouling in sMBR in the study.

Keywords

References

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Details

Primary Language

English

Subjects

-

Journal Section

Research Article

Publication Date

March 15, 2019

Submission Date

June 5, 2018

Acceptance Date

October 11, 2018

Published in Issue

Year 2019 Volume: 21 Number: 1

APA
Sarı Erkan, H., & Önkal Engin, G. (2019). Calcium removal from calcium rich paper mill wastewater by microbial CaCO3 precipitation. Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 21(1), 352-363. https://doi.org/10.25092/baunfbed.547195
AMA
1.Sarı Erkan H, Önkal Engin G. Calcium removal from calcium rich paper mill wastewater by microbial CaCO3 precipitation. Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi. 2019;21(1):352-363. doi:10.25092/baunfbed.547195
Chicago
Sarı Erkan, Hanife, and Güleda Önkal Engin. 2019. “Calcium Removal from Calcium Rich Paper Mill Wastewater by Microbial CaCO3 Precipitation”. Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi 21 (1): 352-63. https://doi.org/10.25092/baunfbed.547195.
EndNote
Sarı Erkan H, Önkal Engin G (March 1, 2019) Calcium removal from calcium rich paper mill wastewater by microbial CaCO3 precipitation. Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi 21 1 352–363.
IEEE
[1]H. Sarı Erkan and G. Önkal Engin, “Calcium removal from calcium rich paper mill wastewater by microbial CaCO3 precipitation”, Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi, vol. 21, no. 1, pp. 352–363, Mar. 2019, doi: 10.25092/baunfbed.547195.
ISNAD
Sarı Erkan, Hanife - Önkal Engin, Güleda. “Calcium Removal from Calcium Rich Paper Mill Wastewater by Microbial CaCO3 Precipitation”. Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi 21/1 (March 1, 2019): 352-363. https://doi.org/10.25092/baunfbed.547195.
JAMA
1.Sarı Erkan H, Önkal Engin G. Calcium removal from calcium rich paper mill wastewater by microbial CaCO3 precipitation. Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi. 2019;21:352–363.
MLA
Sarı Erkan, Hanife, and Güleda Önkal Engin. “Calcium Removal from Calcium Rich Paper Mill Wastewater by Microbial CaCO3 Precipitation”. Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi, vol. 21, no. 1, Mar. 2019, pp. 352-63, doi:10.25092/baunfbed.547195.
Vancouver
1.Hanife Sarı Erkan, Güleda Önkal Engin. Calcium removal from calcium rich paper mill wastewater by microbial CaCO3 precipitation. Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi. 2019 Mar. 1;21(1):352-63. doi:10.25092/baunfbed.547195

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