Innovative Effluent Capture and Evacuation Device that Increases COD Removal Efficiency in Subsurface Flow Wetlands

Processes

卷:7

Gisela Silva-Vasquez¹  Ignacio Fuentes-Ortega¹  Pedro Cisterna-Osorio¹  Mauricio Llanos-Baeza¹  Verónica Lazcano-Castro¹ 

[1] Department of Civil and Environmental Engineering, University of Bío Bío, Concepción 378000, Chile;

关键词: artificial wetlands;    horizontal wetland;    subsurface flow;   

DOI  :  10.3390/pr7070418

来源: DOAJ

【 摘 要 】

The objective of this work is to evaluate the impact of innovative modifications made to conventional effluent capture and discharge devices used in subsurface flow wetlands (SSFW). The main modifications that have been developed extend the influence of the capture and discharge device in such a way that the SSFW width and height are fully covered. This improved innovative device was applied and evaluated in two subsurface flow wetlands, one on a pilot scale and one on a real scale. To evaluate the impact of the innovative device with respect to the conventional one in the operational functioning of subsurface flow wetlands, the elimination of chemical oxygen demand (COD) was measured and compared. The results show that for the innovative device, the COD removal was 10% higher than for the conventional device, confirming the validity and effectiveness of the modifications implemented in the effluent capture and discharge devices used in SSFW.

【 授权许可】

Unknown