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Evaluation of a moving bed biofilm reactor for simultaneous atrazine, carbon and nutrients removal from aquatic environments: Modeling and optimization.

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Title: Evaluation of a moving bed biofilm reactor for simultaneous atrazine, carbon and nutrients removal from aquatic environments: Modeling and optimization.
Authors: Derakhshan, Zahra1, Ehrampoush, Mohammad Hassan2, Mahvi, Amir Hossein1,3,4 ahmahvi@yahoo.com, Dehghani, Mansooreh5, Faramarzian, Mohammad5, Ghaneian, Mohammad Taghi2, Mokhtari, Mehdi2, Ebrahimi, Ali Asghar2, Fallahzadeh, Hossein6
Source: Journal of Industrial & Engineering Chemistry. Nov2018, Vol. 67, p219-230. 12p.
Subjects: Moving bed reactors, Biofilms testing, Atrazine, Biodegradation, Nitrogen removal (Sewage purification), Chemical oxygen demand
Abstract: Graphical abstract Highlights • The MBBR was tested for simultaneous pollutants removal from aquatic environments. • Biodegradation of atrazine is remarkable due to system stability. • Nitrogen removal was due to SND process. • Stover–Kincannon model was the best model for describing target pollutant removal. Abstract The present study examined a moving bed biofilm reactor (MBBR) bioreactor on a laboratory scale for simultaneous removal of atrazine, organic carbon, and nutrients from wastewater. The maximum removal efficiency of atrazine, chemical oxygen demand (COD), total phosphorus (TP) and total nitrogen (TN) were 83.57%, 90.36%, 90.74% and 87.93 respectively. Increasing salinity up to 40 g/L NaCl in influent flow could inhibit atrazine biodegradation process strongly in the MBBR reactor.Results showed that MBBR is so suitable process for efficiently biodegrading of atrazine and nitrogen removal process was based on the simultaneous nitrification-denitrification (SND) process. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
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Abstract:Graphical abstract Highlights • The MBBR was tested for simultaneous pollutants removal from aquatic environments. • Biodegradation of atrazine is remarkable due to system stability. • Nitrogen removal was due to SND process. • Stover–Kincannon model was the best model for describing target pollutant removal. Abstract The present study examined a moving bed biofilm reactor (MBBR) bioreactor on a laboratory scale for simultaneous removal of atrazine, organic carbon, and nutrients from wastewater. The maximum removal efficiency of atrazine, chemical oxygen demand (COD), total phosphorus (TP) and total nitrogen (TN) were 83.57%, 90.36%, 90.74% and 87.93 respectively. Increasing salinity up to 40 g/L NaCl in influent flow could inhibit atrazine biodegradation process strongly in the MBBR reactor.Results showed that MBBR is so suitable process for efficiently biodegrading of atrazine and nitrogen removal process was based on the simultaneous nitrification-denitrification (SND) process. [ABSTRACT FROM AUTHOR]
ISSN:1226086X
DOI:10.1016/j.jiec.2018.06.032