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- Title
Nutrient removal by different plants in wetland roof systems treating domestic wastewater.
- Authors
Van, Phan Thi Hai; Tin, Nguyen Thanh; Hien, Vo Thi Dieu; Quan, Thai Minh; Thanh, Bui Xuan; Hang, Vo Thanh; Tuc, Dinh Quoc; Dan, Nguyen Phuoc; Khoa, Le Van; Phu, Vo Le; Son, Nguyen Thanh; Luong, Nguyen Duc; Kwon, Eugene; Park, Changgyu; Jung, Jingyong; Yoon, Injae; Lee, Sijin
- Abstract
This study evaluated nutrients removal from domestic wastewater by five plants in wetland roof systems (WR). The study plants includeArachis duranensis(1),Evolvulus alsinoides(2),Cosmos Bipinnuatus(3),Cyperus alternifoliusLinn (4), andPhilodendron hastatum(5). The WRs were acclimatized at hydraulic loading rates (HLR) of 220 m3/ha d and operated at HLR of 300 m3/ha d. The plants (1), (2), (4), and (5) had the ability to grow under the rooftop conditions with domestic wastewater as a nutrient source while the plant (3) was not suitable and dead after 20 d of operation. Generally,A. duranensis(1) andC. alternifoliusLinn (4) were the most suitable plants treating domestic wastewater under the conditions of WR. The average phosphorus removal efficiencies of (1) and (4) were approximately 75 and 89%, respectively, while the average nitrogen removal efficiencies were 69 and 92%. The phosphorus accumulation in plants (1) and (4) during operation was 20.4 and 29.4%, respectively, while the nitrogen accumulation was 21.5 and 93%. It is concluded thatC. alternifoliusLinn (4) has best nutrient removal among the study plants under the conditions of shallow bed WR treating domestic wastewater (24 ± 4 and 2.0 ± 0.4 kg TP/ha d).
- Subjects
NUTRIENT pollution of water; SEWAGE purification; WETLANDS; WATER purification; WATER pollution
- Publication
Desalination & Water Treatment, 2015, Vol 54, Issue 4/5, p1344
- ISSN
1944-3994
- Publication type
Article
- DOI
10.1080/19443994.2014.915767