Constructed floating wetland for the treatment of domestic sewage: A real-scale study

被引：70

作者：

Benvenuti, Tatiane ^{[1
,2
]}

Hamerski, Fernando ^{[2
]}

Giacobbo, Alexandre ^{[2
]}

Bernardes, Andrea M. ^{[2
]}

Zoppas-Ferreira, Jane ^{[2
]}

Rodrigues, Marco As ^{[1
]}

机构：

[1] Univ Feevale, Lab Aquario, Rodovia 239,2755 Vila Nova, Novo Hamburgo, RS, Brazil

[2] Univ Fed Rio Grande do Sul, PPGE3M, Av Bento Goncalves 9500, Porto Alegre, RS, Brazil

来源：

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2018年 / 6卷 / 05期

关键词：

Constructed wetland; Constructed floating wetland; Floating system; Domestic sewage treatment; Typha domingensis Pers; Macrophytes; WASTE-WATER TREATMENT; NITROGEN REMOVAL; VEGETATION; EFFLUENT; DESIGN; STATE;

D O I：

10.1016/j.jece.2018.08.067

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A constructed foaling wetland using macrophytes Typha domingensis Pers. was applied to the treatment of raw sewage in a municipal sewage treatment plant in south Brazil. During 12 months, the average removal of organic matter was evaluated by chemical oxygen demand (COD), 5-day biochemical oxygen demand (BOD5) and by total suspended solids (TSS) analysis and a removal efficiency of 55, 56 and 78% was, respectively, obtained. For nutrients, total Kjeldahl nitrogen (TKN) was reduced in 41% and total phosphorus, in 37%. The foaling mats supported satisfactorily the macrophytes. This foaling arrangement was applied as a single step on the sewage treatment. It is an effective alternative in Brazilian sewage treatment systems, where wetlands are normally used as a polishing step. The evaluation of parameters in the treatment system may give useful information in order to improve the removal efficiency and increase the quality of the water bodies.

引用

页码：5706 / 5711

页数：6

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