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The function of a constructed wetland system may be affected by high ammonia concentrations, which are toxic to wetland plants. This research was conducted to assess the tolerance of Phragmites australis to ammonia. P. australis is a reed species commonly used in constructed wetlands. The photosynthetic rate (Pn), peroxidase (POD), catalase (CAT), and superoxide dismutase (SOD) activities and the...
By using the PAGE (Poly Acrylamide Gel Electrophoresis), the effect of water-borne Cu2+ on the isozymes in gills of E. sinensis was studied. The experimental groups were treated with different concentration of Cu2+ as 0.01, 0.10, 1.00, and 5.00 mg/l, respectively. The results showed that different isozymes had specific responses. The activity of LDH and MDH decreased gradually along with the increasing...
Arundo donax root was used to prepare activated carbon by H3PO4 activation for the removal of methyl violet (MV). The activated carbon has a micro-mesoporous structure with BET surface area 1392 m2/g. Pseudo-second-order model could predict the adsorption kinetics for the entire process. The sorption involved several stages and the actual rate controlling step was film diffusion for the whole process...
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