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Kinetic modelling of organic matter removal in 80 horizontal flow reed beds for domestic sewage treatment

Paper ID Volume ID Publish Year Pages File Format Full-Text
35129 45077 2009 6 PDF Available
Title
Kinetic modelling of organic matter removal in 80 horizontal flow reed beds for domestic sewage treatment
Abstract

This paper reports a comparative study of four kinetic models that can be applied in the design of subsurface horizontal flow reed beds for wastewater treatment. The models were developed from different combinations of Monod kinetics, first-order kinetics, continuous stirred-tank reactor and plug flow patterns. Using three statistical parameters (coefficient of determination, relative root mean square error, and model efficiency), critical examinations were made on the accuracy of these models. For predicting organic matter removal, the combination of Monod kinetics with plug flow pattern gave the closest match between theoretical predictions and actual performances of 80 horizontal flow reed beds. In all four models, the coefficients of BOD removal were found to increase slightly with BOD loading. The ratios of BOD/COD had no correlation with the coefficients, indicating that in the horizontal flow reed beds the degradation of organic matter is insensitive to the nature of organics in the wastewater.

Keywords
BOD; Constructed wetland; Design; Kinetics; Modelling; Wastewater treatment
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Kinetic modelling of organic matter removal in 80 horizontal flow reed beds for domestic sewage treatment
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 44, Issue 7, July 2009, Pages 717–722
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
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Price was $35.95
You save - $31
Price after discount Only $4.95
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