Study on Domestic Wastewater Treatment of the Horizontal Subsurface Flow Wetlands (HSSF-CWs) Using Brachiaria mutica

2020 ◽  
Vol 11 (10) ◽  
pp. 5627-5634 ◽  
Author(s):  
Van Thi Thanh Ho ◽  
Minh Pham Dang ◽  
Lam Tu Lien ◽  
Tai Thien Huynh ◽  
Tran Van Hung ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Subsurface Flow ◽  
Domestic Wastewater ◽  
Domestic Wastewater Treatment ◽  
Horizontal Subsurface Flow ◽  
Brachiaria Mutica

Seeking a way to promote the use of constructed wetlands for domestic wastewater treatment in developing countries

2011 ◽  
Vol 63 (4) ◽  
pp. 654-659 ◽  
Author(s):  
F. Zurita ◽  
M. A. Belmont ◽  
J. De Anda ◽  
J. R. White
Keyword(s):  
Developing Countries ◽  
Wastewater Treatment ◽  
Constructed Wetlands ◽  
Subsurface Flow ◽  
Domestic Wastewater ◽  
Treatment Efficiency ◽  
Zantedeschia Aethiopica ◽  
Domestic Wastewater Treatment ◽  
Anthurium Andreanum ◽  
Strelitzia Reginae

The aim of this study was to evaluate the domestic wastewater treatment efficiency as well as the survivability of commercially valuable ornamental plants in subsurface flow wetlands (SSFW) for domestic wastewater (DWW) treatment in laboratory and pilot wetland studies. The laboratory scale study included five different species (Zantedeschia aethiopica, Strelitzia reginae, Anthurium andreanum, Canna hybrids and Hemmerocallis dumortieri) that were evaluated in horizontal flow subsurface treatment cells. All the plants survived during the 6-month experimental period demonstrating high wetland nutrient treatment efficiency. In order to validate and expand these preliminary results, a pilot-scale wetland study was carried out in SSFWs under two different flow regimes (horizontal and vertical flow). Four ornamental species were tested during a 1-year period: Zantedeschia aethiopica, Strelitzia reginae, Anthurium andreanum and Agapanthus africanus. The removal efficiencies were significantly higher in the vertical subsurface-flow constructed wetlands (VFCW) for all pollutants, except for nitrate (NO3-N), total nitrogen (TN) and total suspended solids (TSS). These results show that it is feasible to use select non-wetland plants with high market value in SSFWs without reducing the efficiency of the wastewater treatment system, although future work should continue in order to apply this technology in a large scale. The added value of floriculture in treatment wetlands can help to promote the use of constructed wetlands (CW) for domestic wastewater treatment in developing countries where economical resources are scarce and water pollution with DWW is common.

scholarly journals Considerations on design and implementation parameters of domestic wastewater treatment by subsurface flow constructed wetlands

2019 ◽  
Vol 24 (4) ◽  
pp. 809-819
Author(s):  
Lis Eveline Athaydes Fadanelli ◽  
Alceu Gomes de Andrade Filho ◽  
Giovana Kátie Wiecheteck ◽  
Maria Magdalena Ribas Döll
Keyword(s):  
Wastewater Treatment ◽  
Constructed Wetlands ◽  
Subsurface Flow ◽  
Domestic Wastewater ◽  
Previous Treatment ◽  
Temperate Climate ◽  
Operational Parameters ◽  
Urban Centers ◽  
Domestic Wastewater Treatment ◽  
Operational Criteria

ABSTRACT Constructed wetlands might be an alternative for communities away from urban centers and not served by a domestic wastewater treatment system. The purpose of this study was to provide instructions for the implementation of subsurface flow constructed wetland systems. To that end, we gathered information regarding the construction aspect, plants, and operational parameters used in systems which already operate in the country and the respective efficiency of these sets after previous treatment. The system in real scale proposed by Oliveira et al. (2005) was prominent among those that presented the highest efficiency. It was preceded by upflow anaerobic reactor built in brick, with macrophyte of the Typha genre, crushed stone at the entry and exit of the system, and sand in its intermediate portion. It required 1.04 m² surface area per inhabitant in humid temperate climate and hot summer, 1.71 m³ d-1 flow, and one-day hydraulic detention. The considerations presented here might help the construction of this kind of system, regarding dimensional and operational criteria.

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