Sink or source? Insights into the behavior of copper and zinc in the sediment porewater of a constructed wetland by peepers

2022 ◽  
pp. 153127
Author(s):  
Chongyang Qin ◽  
Xiaoyu Xu ◽  
Erin Peck
Keyword(s):  
Constructed Wetland ◽  
Copper And Zinc

Distribution and Availability of Copper and Zinc in a Constructed Wetland Fed with Treated Swine Slurry from an Anaerobic Lagoon

Wetlands ◽  
2014 ◽  
Vol 34 (3) ◽  
pp. 583-591 ◽  
Author(s):  
Cristina Alejandra Villamar ◽  
M. E. Neubauer ◽  
G. Vidal
Keyword(s):  
Constructed Wetland ◽  
Swine Slurry ◽  
Copper And Zinc ◽  
Anaerobic Lagoon

scholarly journals Heavy metals in a constructed wetland treating industrial wastewater: distribution in the sediment and rhizome tissue

2009 ◽  
Vol 60 (6) ◽  
pp. 1425-1432 ◽  
Author(s):  
Sergio Domingos ◽  
Stewart Dallas ◽  
Mark Germain ◽  
Goen Ho
Keyword(s):  
Constructed Wetland ◽  
Water Samples ◽  
Profile Analysis ◽  
Sediment Quality ◽  
Sediment Layer ◽  
Inlet Pipe ◽  
Quality Guidelines ◽  
Copper And Zinc ◽  
Bioavailable Fraction ◽  
Cu And Zn

This study assessed copper and zinc distribution in the surface layer of sediment and rhizome tissue within the saturated surface vertical flow constructed wetland of CSBP Ltd, a fertiliser and chemical manufacturer located in Western Australia. Sediment and Schoenoplectus validus rhizome samples were collected at various distances from the inlet pipe while water samples are routinely collected. Water samples were analysed for nutrients and metals, sediments were analysed for total and bioavailable metals and rhizomes were analysed for total metals only. Mean influent copper and zinc concentrations were 0.19 mg/L and 0.24 mg/L respectively. The distribution of bioavailable Cu and Zn in the top sediment layer follows a horizontal profile. Analysis of variance (ANOVA) showed that the bioavailable fraction of these metals in sediments near the inlet pipe (30.2 mg/kg Cu and 60.4 mg/kg Zn) is significantly higher than in sediments at the farthest location (10.3 mg/kg Cu and 26.1 mg/kg Zn). The average total Cu concentration in the sediment at the 2 m location has reached the 65 mg/kg trigger value suggested by the Interim Sediment Quality Guidelines (ANZEEC 2000). Cu and Zn concentrations in the rhizome of S. validus do not vary significantly among different locations. Whether Cu and Zn concentrations at the CSBP wetland may reach toxic levels to plants and bacteria is still unknown and further research is required to address this issue. The surface component of the wetland favours sedimentation and binding of metals to the organic matter on the top of the sediment, furthermore, the sediment which tends to be anoxic with reducing conditions acts as a sink for metals.

Ca++-ATPase activity in the hepatopancreas cells of Oniscus asellus

1992 ◽  
Vol 50 (1) ◽  
pp. 820-821
Author(s):  
G.M. Vernon ◽  
A. Surace ◽  
R. Witkus
Keyword(s):  
B Cells ◽  
Epithelial Cell ◽  
Atpase Activity ◽  
Calcium Transport ◽  
Carcinus Maenas ◽  
Cell Types ◽  
Molt Cycle ◽  
Copper And Zinc

The hepatopancreas consists of a pair of bilobed tubules comprised of two epithelial cell types. S cells are absorptive and accumulate metals such as copper and zinc. Ca++ concentrations vary between the S and B cells and during the molt cycle. Roer and Dillaman implicated Ca++-ATPase in calcium transport during molting in Carcinus maenas. This study was undertaken to compare the localization of Ca++-ATPase activity in the S and B cells during intermolt.

Water Budget of Constructed Wetland System with Subsurface Vertical Flow in Sub-Humid Tropical Climate

2015 ◽  
Vol 1 (5) ◽  
pp. 235-242
Author(s):  
Édio Damásio da Silva Júnior ◽  
Rogério de Araújo Almeida ◽  
Elisa Rodrigues Siqueira ◽  
Ábio Roduvalho da Silva
Keyword(s):  
Constructed Wetland ◽  
Water Budget ◽  
Tropical Climate ◽  
Vertical Flow ◽  
Humid Tropical Climate ◽  
Wetland System

Sunflowers (Helianthus annuus L.) on Top of a Constructed Wetland as an Engineered Ecosystem to Clean Sewage Onsite

2014 ◽  
Vol 2014 (2) ◽  
pp. 83-91
Author(s):  
Alfredo Garcia-Perez ◽  
◽  
Mark Harrison ◽  
Bill Grant ◽  
◽  
...  
Keyword(s):  
Helianthus Annuus ◽  
Constructed Wetland ◽  
Helianthus Annuus L

Greywater Treatment by Constructed Wetland: A New Age Technique

2017 ◽  
Author(s):  
D. B. Rana ◽  
M. K. N. Yenkie ◽  
N. T. Khati ◽  
A. G. Haldar ◽  
P. J. Puri
Keyword(s):  
Constructed Wetland ◽  
New Age
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