Organic matter removal kinetics in constructed wetlands cultivated with yellow lily

被引：13

作者：

Chagas, Renata C. ^{[1
]}

de Matos, Antonio T. ^{[2
]}

Cecon, Paulo R. ^{[3
]}

Lo Monaco, Paola A. V.

Franca, Luis G. F. ^{[2
]}

机构：

[1] UFES, Vitoria, Spain

[2] Univ Fed Vicosa, DEA, Vicosa, MG, Brazil

[3] Univ Fed Vicosa, DPI, Vicosa, MG, Brazil

来源：

REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL | 2011年 / 15卷 / 11期

关键词：

constructed wetlands; ornamental plants; degradation kinetics; WASTE-WATER; ZANTEDESCHIA-AETHIOPICA; VERTICAL-FLOW; PERFORMANCE; DESIGN;

D O I：

10.1590/S1415-43662011001100012

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This work aimed to obtain the adjustment of the mathematical model adapted from the first order kinetics and its respective parameters for describing the organic matter degradation in constructed wetlands (CWs) planted with yellow lily (Hemerocallis flava) for the treatment of domestic sewage. The CWs were cultivated with yellow lily and subjected to different surface organic loading rates (TCOs) of domestic sewage: 44, 98, 230 and 395 kg ha(-1) day(-1) BOD. The mathematical model adapted from the decay of organic material showed a good fit and adequately described the kinetics of removal of organic matter (COD) in the evaluated systems, with generally more than 75% R-2. In ascending order of TCO values of degradation coefficients (Kv) were, respectively, of 0.45, 0.69, 1.23 and 1.72 d(-1), considered low for the first two CWs and normal for the other two, and the values of "n" of 0.448, 0.107, 0.327 and 0.461 in the range normally found in the literature.

引用

页码：1186 / 1192

页数：7

共 33 条

[31] Constructed wetlands in water pollution control: Fundamentals to their understanding [J].