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

This study aimed to evaluate the effect of domestic wastewater treatment on the horizontal subsurface flow-constructed wetlands (HSSF-CWs) using Brachiaria mutica vegetation. We used two wetland models: one with plants and the other without plants. These models were built according to the following...

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Bibliographic Details
Published in:Waste and biomass valorization 2020-10, Vol.11 (10), p.5627-5634
Main Authors: Van Thi Thanh Ho, Dang, Minh Pham, Lien, Lam Tu, Huynh, Tai Thien, Van Hung, Tran, Bach, Long Giang
Format: Article
Language:English
Subjects:
Artificial wetlands
Brachiaria mutica
Coliforms
Domestic wastewater
Engineering
Environment
Environmental Engineering/Biotechnology
Industrial Pollution Prevention
Load distribution
Loading rate
Organic loading
Original Paper
Phosphorus
Plants (botany)
Pollutants
Renewable and Green Energy
Storm seepage
Waste Management/Waste Technology
Wastewater pollution
Wastewater treatment
Water treatment
Wetlands
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Summary:This study aimed to evaluate the effect of domestic wastewater treatment on the horizontal subsurface flow-constructed wetlands (HSSF-CWs) using Brachiaria mutica vegetation. We used two wetland models: one with plants and the other without plants. These models were built according to the following dimensions (L × W × H = 1.2 × 0.4 × 0.8 m) and operated at four organic loads (30, 60, 90, 120 kg COD/ha.day) for 3 months. Parameters including pH, COD, BOD 5 , TSS, total nitrogen (TN), total phosphorus (TP), total coliforms were analyzed. The levels of pollutants in domestic wastewater after treatment were significantly reduced. The values of percentage removal (%) were as follows: COD 81.58%, BOD 5 93.3%, TSS 67.2%, TN 58.6%, TP 85.5%, and total coliforms 90.4%. Our results also indicate that the organic loading rate (OLR) ranging between 60 and 120 kg COD/ha.day is suitable to be implemented in the actual domestic wastewater treatment. Graphic Abstract
ISSN:1877-2641
1877-265X
DOI:10.1007/s12649-020-01084-4