Floating treatment wetlands to improve the water quality of the hang bang canal, ho chi minh city, vietnam: effect of plant species
Ngày
2024
Tác giả
Vo, Thi Dieu Hien
Tên Tạp chí
Tạp chí ISSN
Nhan đề tập
Nhà xuất bản
Trường Đại học Nguyễn Tất Thành (Ngành Quản lý Tài nguyên Môi Trường)
Giấy phép
Tóm tắt
Floating treatment wetlands (FTWs) are artifcial platforms that allow aquatic emergent plants to grow in water. Aquatic macrophytes and microorganisms attached to plant roots contribute to the remediation of the contaminated water through physicochemical and biological processes. The pollutant removal treatment performance is affected by various factors, including the plant species. In this study, several plant species, i.e. Canna generalis, Phragmites australis, Pennisetum purpureum, Cyperus alternifolius rottb, Kyllinga brevifolia rottb, and Cyperus ordoratus were investigated for their potential to clean-up water from the Hang Bang canal in Ho Chi Minh City (Vietnam). Canna generalis, Phragmites australis, and Cyperus alternifoliuswere found to be suitable for FTWs with the highest performance compared to that of other plant species investigated. The organic and nitrogen removal rates amounted to 48–70 gCOD/m3.d and 0.7–1.2 gN/m3.d, respectively, whereas the reduction of pathogens was around 1.86–3.00 log. Furthermore, FTW systems bring other benefts such as improving ecosystem functioning and biodiversity, producing value-added products from plant biomass, as well as attracting the attention of communities, thus increasing social acceptance of environmental technology interventions.
Mô tả
1 p.
Từ khóa
Floating treatment , Plant species , water quality