Role of plants and vegetation structure on boron (B) removal process in constructed wetlands
Yükleniyor...
Tarih
2016
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER SCIENCE BV
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, we investigated the direct role of plants and vegetation composition on B removal pathways, as well as the effect of the presence of plants on physicochemical parameter of wastewater in the constructed wetlands (CWs) under natural climate conditions in the largest B reserve area all over the world. The results indicated that the maximum B removal was achieved by a monoculture CW planted with T. latifolia with average removal efficiency of 64%, while the lowest B removal efficiency (38.1% removal rate) was obtained by unplanted system in the experimental period. Therefore, we emphasized that the presence of plants in CWs can offer a positive effect on improving the quality of the wastewater due to direct uptake of B in tissues and influence filtering capacity, leading to higher levels of sorption or adsorption around the rhizosphere and sediment. The results also suggested that the cumulative effect of plants or vegetation on physicochemical parameter of wastewater (pH, EC, and DO) related to B removal cannot be significant. Furthermore, we found that the main B removal pathway in CW was sediment storage through a mass balance model, and plant has minor contribution to the overall removal of B in CWs.
Açıklama
Anahtar Kelimeler
Boron Contamination, Boron Removal, Constructed Wet Lands, Vegetation Combination, Mass Balance Model
Kaynak
ECOLOGICAL ENGINEERING
WoS Q Değeri
N/A
Scopus Q Değeri
Q1
Cilt
88
