CHARACTERIZATION OF CLOGGING MATERIAL FROM HORIZONTAL SUBSURFACE FLOW CONSTRUCTED WETLAND SYSTEMS

被引：0
|
作者：
Miranda, Suymara T. [1 ]
Matos, Antonio T. [2 ]
Matos, Mateus P. [3 ]
Borges, Alisson C. [4 ]
Baptestin, Gheila C. F. [4 ]
机构：
[1] Univ Fed Vicosa, Vicosa, MG, Brazil
[2] Univ Fed Minas Gerais, Belo Horizonte, MG, Brazil
[3] Univ Fed Lavras, Lavras, MG, Brazil
[4] Univ Fed Vicosa, Vicosa, MG, Brazil
来源：
ENGENHARIA AGRICOLA | 2017年 / 37卷 / 03期
关键词：
constructed wetlands; clogging; porous medium; ACCUMULATION; SOLIDS;
D O I：
10.1590/1809-4430-Eng.Agric.v37n3p463-470/2017
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
This study aimed to characterize the material composition responsible for clogging the porous medium of horizontal subsurface flow constructed wetland (HSSF-CW) systems, which is detrimental to a proper system operation. Six completely clogged HSSF-CWs were used after treatment of swine wastewater. Operating conditions of these systems were named CW-C (HSSFCW 1 and HSSF-CW 4, non-cultivated, i.e. controls), CW-T (HSSF-CW 2 and HSSF-CW 5, cultivated with Tifton 85 (Cynodon spp.)), and CW-A (HSSF-CW 3 and HSSF-CW 6, cultivated with alligator weed (Alternanthera philoxeroides)). The results showed that most of the clogging material was composed of total fixed solids (95, 84, and 82% in CW-C, CW-T, and CW-A, respectively). However, total volatile solids (TVS) mostly affected pore clogging. The larger accumulations and productions of TVS in CWs might have originated from dead plants.
引用
收藏
页码：463 / 470
页数：8
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