Investigation of Subsurface Flow Constructed Wetland Designs  

Oleh:

Cothren, Gianna M. ; Shulin, Chen ; Pardue, John H.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Public Works Management & Policy vol. 7 no. 1 (Jul. 2002), page 32-45.
Fulltext: 32PWM71.pdf (103.56KB)

Isi artikel

Results of a bench-scale model investigation of the dispersion impact on Subsurface Flow ConstructedW etland(SFCW) designs are presentedin this article. The research involved determining the dispersion number as interstitial velocity, a function of aspect ratio and flow rate, was varied. The range of dispersion numbers found was from 0.107 to 0.345. Results indicated that as the aspect ratio is decreased below 2:1, increased dispersion occurs. Additionally, an increase in dispersion number with increasing flow rate for larger aspect ratios (6:1, 3:1, 2:1) was revealed. Interstitial velocity was shown to control dispersion number for higher flow rates; however, aspect ratio controlled the dispersion number when the ratio was reduced below 2:1. This research provides a valuable tool intended for estimating the dispersion impact when applying alternative models to the design of SFCWs.

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