Effect of Grit Chamber Configuration on Particle Removal: Using Response Surface Method
DOI:
https://doi.org/10.6000/1929-6037.2018.07.02Keywords:
Grit chamber, Configuration, Response surface method, suspended solids.Abstract
In recent years ever-increasing industrial growth has resulted in a significant increase in the production of wastewater, this wastewater sometimes contains high levels of suspended solids. Therefore, the need to formulate an appropriate course of action for managing this wastewater has reached a critical level. In this study, the removal of suspended particles in wastewater that were a byproduct of an idustrial cut stone production process were investigated. For these purposes, a laboratory grit chamber was employed, and response surface methodology (RSM) was used to simulate the contributing parameters in the settling process. In order to study the performance of the grit chamber, factors such as flow rate, inlet location and mesh size, parameters of pH, COD, BOD, TSS and turbidity in influent and effluent were monitored. Results indicated that values of pH, COD and BOD in raw wastewater were within the standard range of discharging wastewater. The results indicated that the model with a high correlation of 0.95 was able to simulate the process. In addition, turbidity removal was found to be affected by three parameters among which mesh size and its interaction with the flow rate were the most influential ones.
References
Zhang J, Wang S, Wangand C, Hu H. Chemical identification and genotoxicity analysis of petrochemical industrial wastewater. F Environ Sci Eng 2012; 1-10.
Feigin A, Ravina I, Shalhevet J. Irrigation with treated sewage effluent: management for environmental protection. SSBM 2012; 17.
Weis FG, Davis R. U.S. Patent No. 7,971,732. Washington, DC: U.S. Patent and Trademark Office 2011.
Nourouzi MM, Chuah TG, Choong TS. Optimization of flocculation process for cut-stone wastewater Effect of rapid mix parameters. Desal Water Treat 2010; 22: 127-132. https://doi.org/10.5004/dwt.2010.1652
Mansour-Geoffrion M, Dold PL, Lamarre D, Gadbois A, Déléris S, Comeau Y. Characterizing hydrocyclone performance for grit removal from wastewater treatment activated sludge plants. Miner Eng 2010; 23: 359-364. https://doi.org/10.1016/j.mineng.2009.08.001
Gardner P, Deamer A. An evaluation of methods for assessing the removal efficiency of a grit separation device. Water Sci Technol 1996; 33: 269-275. https://doi.org/10.2166/wst.1996.0228
Metcalf and Eddy, Wastewater Engineering: Treatment and Reuse. McGraw-Hill Publications, New York, 2003.
Boller M, Kaegi R. Characterization of aquatic particles. IWA Publishing, London, UK, 2011.
Casey TJ. Unit treatment processes in water and wastewater engineerin. West Sussex, England, Wiley, 1997;166-170.
Goula AM, Kostoglou M, Karapantsios TD, Zouboulis AI. A CFD Methodology for the Design of Sedimentation Tanks in Potable Water Treatment: Case study: The Influence of a Feed Flow Control Baffle. J Chem Eng 2008; 140: 110-121. https://doi.org/10.1016/j.cej.2007.09.022
Spellman FR. Handbook of Water and Wastewater Treatment Plant Operations, CRC Press, 2013. https://doi.org/10.1201/b15579
Nasserdine K, Mimi Z, Bevan B, Elian B. Environmental Management of the Stone Cutting Industry. J Environ Mgmt 2009; 90: 466-470. https://doi.org/10.1016/j.jenvman.2007.11.004
Gutierrez O, Park D, Sharma KR, Yuan Z. Iron Salts Dosage for Sulfide Control in Sewers Induces Chemical Phosphorus Removal During Wastewater Treatment. Water Res 2010; 44: 3467-3475. https://doi.org/10.1016/j.watres.2010.03.023
Fornari W, Picano F, Sardina G, Brandt L. Reduced particle settling speed in turbulence. J Fluid Mech 2016; 808: 153-167. https://doi.org/10.1017/jfm.2016.648
Rostami F, Shahrokhi M, Said MA, Abdullah R. Numerical Modeling on Inlet Aperture Effects on Flow Pattern in Primary Settling Tanks. Appl Math Modell 2011; 35: 3012-3020. https://doi.org/10.1016/j.apm.2010.12.007
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