CFD study on hydraulic performance of subsurface flow constructed wetland: Effect of distribution and catchment area

Liwei Fan; Reti Hai; Zexiang Lu

Korean Journal of Chemical Engineering, Vol.26, No.5, 1272-1278, September, 2009

DOI10.1007/s11814-009-0222-7 Export Citation

CFD study on hydraulic performance of subsurface flow constructed wetland: Effect of distribution and catchment area

Liwei Fan^†, Reti Hai¹, and Zexiang Lu

College of Resource and Environment, Fujian Agricultural and Forestry University, Fujian 350-002, China
¹Center of Environmental Science and Technology, Beijing University of Chemical Technology, Beijing 100-029, China

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A subsurface flow constructed wetland (SSFW) was simulated by using a commercial computational fluid dynamic (CFD) code (Fluent 6.22, Fluent Inc.). The liquid residence time distribution in the SSFW was obtained by the particle trajectory model. The simulation confirmed that the effect of the distribution and/or catchment area on the hydraulic efficiency is significant. An inappropriate horizontal distribution and/or catchment area can result in poor hydraulic efficiency. The hydraulic efficiency of the SSFW with the vertical distribution and/or catchment area can be kept at a high level (above 0.898). The design of the vertical distribution and/or catchment area in the SSFW is better than that of the horizontal. From the point of view of the engineering design, a small dimension distribution and/or catchment area in the SSFW is advisable, which maintains a considerable hydraulic efficiency of the SSFW (above 0.840), but also benefits the increase of the purge area.

Keywords:Subsurface Flow Constructed Wetland;Computational Fluid Dynamics;Distribution Area;Catchment Area;Hydraulic Efficiency

[References]

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Chen TY, Kao CM, Yeh TY, Chien HY, Chao AC, Chemosphere, 64, 497 (2006)
Badkoubi A, Ganjidoust H, Ghaderi A, Rajabi A, Water Sci. Technol., 38, 345 (1998)
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Kadlec RH, Ecol. Eng., 3, 345 (1994)
Persson J, Somes NLG, Wong THF, Water Sci. Technol., 40, 291 (1999)
Garcia J, Chiva J, Ecol. Eng., 23, 177 (2004)
Huang Y, Ortiz L, Aguirre P, Garcia J, Mujeriego R, Bayona JM, Chemosphere, 59, 769 (2005)
Molle P, Lienard A, Grasmick A, Iwema A, Water Res., 40, 606 (2006)
Kadlec RH, Ecol. Eng., 20, 1 (2003)
Wood MG, Greenfield PF, Johns MR, Keller J, Water Sci. Technol., 31, 111 (1995)
Matko T, Fawcett N, Sharp A, Process Saf. Environ., 74, 197 (1996)
Peterson EL, Aquacult. Eng., 21, 247 (2000)
Dania LH, Raul HP, Tom R, Aquacult. Eng., 33, 167 (2005)
Wong SY, Zhou WB, Hua JS, J. Food Eng., 78, 888 (2007)
Norton T, Sun DW, Grant J, Fallon R, Dodd V, Bioresour. Technol., 98(12), 2386 (2007)
Thackston EL, Shields J, Schroeder PR, J. Environ. Eng., 113, 1319 (1987)
Persson J, Wittgren HB, Ecol. Eng., 21, 259 (2003)
Holland JF, Martin JF, Granata T, Bouchard V, Martin Q, Brown L, Ecol. Eng., 23, 189 (2004)

[Referenced By]

[1] Kivaisi AK, Ecol. Eng., 16, 545 (2001)

[2] Chen TY, Kao CM, Yeh TY, Chien HY, Chao AC, Chemosphere, 64, 497 (2006)

[3] Badkoubi A, Ganjidoust H, Ghaderi A, Rajabi A, Water Sci. Technol., 38, 345 (1998)

[4] Garcia J, Aguirre P, Jesus B, Mujeriego R, Matamoros V, Bayona JM, Ecol. Eng., 25, 405 (2005)

[5] Garcia J, Aguirre P, Mujeriego R, Huang Y, Ortiz L, Bayona JM, Water Res., 38, 1669 (2004)

[6] Kadlec RH, J. Hydraul. Eng., 116, 691 (1990)

[7] Ranjit S, Jadhav SG, Buchberger, Ecol. Eng., 5, 481 (1995)

[8] Kadlec RH, Ecol. Eng., 3, 345 (1994)

[9] Persson J, Somes NLG, Wong THF, Water Sci. Technol., 40, 291 (1999)

[10] Garcia J, Chiva J, Ecol. Eng., 23, 177 (2004)

[11] Huang Y, Ortiz L, Aguirre P, Garcia J, Mujeriego R, Bayona JM, Chemosphere, 59, 769 (2005)

[12] Molle P, Lienard A, Grasmick A, Iwema A, Water Res., 40, 606 (2006)

[13] Kadlec RH, Ecol. Eng., 20, 1 (2003)

[14] Wood MG, Greenfield PF, Johns MR, Keller J, Water Sci. Technol., 31, 111 (1995)

[15] Matko T, Fawcett N, Sharp A, Process Saf. Environ., 74, 197 (1996)

[16] Peterson EL, Aquacult. Eng., 21, 247 (2000)

[17] Dania LH, Raul HP, Tom R, Aquacult. Eng., 33, 167 (2005)

[18] Wong SY, Zhou WB, Hua JS, J. Food Eng., 78, 888 (2007)

[19] Norton T, Sun DW, Grant J, Fallon R, Dodd V, Bioresour. Technol., 98(12), 2386 (2007)

[20] Thackston EL, Shields J, Schroeder PR, J. Environ. Eng., 113, 1319 (1987)

[21] Persson J, Wittgren HB, Ecol. Eng., 21, 259 (2003)

[22] Holland JF, Martin JF, Granata T, Bouchard V, Martin Q, Brown L, Ecol. Eng., 23, 189 (2004)