Role ofPhragmites australis(common reed) for heavy metals phytoremediation of estuarine sediments

2015 ◽  
Vol 18 (6) ◽  
pp. 575-582 ◽  
Author(s):  
Diego Cicero-Fernández ◽  
Manuel Peña-Fernández ◽  
Jose A. Expósito-Camargo ◽  
Blanca Antizar-Ladislao
Keyword(s):  
Heavy Metals ◽  
Common Reed ◽  
Estuarine Sediments

Assessment of ex-situ chemical washing of heavy metals from estuarine sediments around an industrial harbor in Southern Taiwan

2019 ◽  
Vol 19 (7) ◽  
pp. 3108-3122 ◽  
Author(s):  
Yu-Jen Shih ◽  
Syuan-Yao Syu ◽  
Chiu-Wen Chen ◽  
Chih-Feng Chen ◽  
Cheng-Di Dong
Keyword(s):  
Heavy Metals ◽  
Estuarine Sediments ◽  
Ex Situ ◽  
Chemical Washing ◽  
Southern Taiwan

scholarly journals Bioavailability of heavy metals bound to estuarine sediments as a function of pH and salinity values

2003 ◽  
Vol 15 (4) ◽  
pp. 101-114 ◽  
Author(s):  
I. Riba ◽  
E. García-Luque ◽  
J. Blasco ◽  
T. A. DelValls
Keyword(s):  
Heavy Metals ◽  
Estuarine Sediments

Treatment of gully pot liquor containing heavy metals with constructed wetlands in Scotland

2005 ◽  
Vol 51 (9) ◽  
pp. 251-258 ◽  
Author(s):  
M. Scholz ◽  
P. Anderson ◽  
B.I. Forman
Keyword(s):  
Heavy Metals ◽  
Oxygen Demand ◽  
Copper Nitrate ◽  
Common Reed ◽  
Cold Climate ◽  
Water Runoff ◽  
Treatment Standards ◽  
Copper Nickel ◽  
One Year ◽  
Nickel Leaching

The aim of this investigation was to assess the treatment efficiencies for gully pot liquor of 12 experimental vertical-flow constructed wetland filters containing Phragmites australis (Cav.) Trin. ex Steud. (Common Reed) and filter media of different adsorption capacities in a cold climate. Seven of the twelve filters received inflow water spiked with heavy metals. For one year, hydrated copper nitrate and hydrated nickel nitrate were added to sieved gully pot liquor to simulate contaminated primary treated storm water runoff. The inflow concentrations for dissolved copper, nickel and nitrate-nitrogen were approximately 1.0, 1.0 and 1.45 mg/l, respectively, which represent mean loading rates of 0.063 g/m2/d for Filters 2 and 7 to 11, and 0.115 g/m2/d for Filter 12. For these filters receiving metals, an obvious breakthrough of dissolved nickel was recorded after road gritting and salting during winter. Sodium chloride was responsible for nickel leaching. Reductions of copper, nickel, biochemical oxygen demand and suspended solids were frequently insufficient compared to international secondary wastewater treatment standards. Moreover, the overall filtration performance for all filters was similar.

scholarly journals SIMULTANEOUS REMOVAL OF SOME HEAVY METALS AND ARSENIC FROM AQUEOUS SOLUTIONS BY Phragmites australis

2018 ◽  
Vol 54 (2A) ◽  
pp. 259
Author(s):  
Tran Thi Huyen Nga
Keyword(s):  
Heavy Metals ◽  
Aqueous Solutions ◽  
Phragmites Australis ◽  
Removal Efficiency ◽  
Common Reed ◽  
Plant Roots ◽  
Simultaneous Removal ◽  
Removal Rates ◽  
Heavy Metals And Arsenic

In this study, Phragmites australis (common reed) was transplanted into solutions added with different concentrations of Mn, Zn, Cd, Pb, and As for 30 days in the laboratory (10 days of incubation and repeated three times without changing the plant) to assess the removal of these metals and its accumulation in the plant. The results showed that high removal efficiency was achieved by growing P.australis. The highest daily removal rates of heavy metals and As were obtained after 1 day of new solution addition. The highest concentrations of Mn, Zn, Cd, Pb, and As in the plant roots were 3920, 1020, 90.9, 1350, and 183 mg kg–1 dry wt., respectively; those in the stems were 465, 108, 26.4, 227, and 74.0 mg kg–1 dry wt.; and those in the leaves were 716, 150, 18.1, 157, and 88.3 mg kg–1 dry wt. The results of this study indicated that P. australis has the ability to remove simultaneously these metals from water, making it a potential species for phytoremediation of wastewater from Pb-Zn mine.

Heavy Metals Phytoremediation from Urban Waste Leachate by the Common Reed (Phragmites australis)

2015 ◽  
pp. 75-81 ◽  
Author(s):  
Amin Mojiri ◽  
Hamidi Abdul Aziz ◽  
Ramlah Bt Mohd Tajuddin ◽  
Shahin Gavanji ◽  
Ali Gholami
Keyword(s):  
Heavy Metals ◽  
Phragmites Australis ◽  
Common Reed ◽  
Urban Waste ◽  
The Common ◽  
Waste Leachate

scholarly journals Pilot-Scale Removal of Arsenic and Heavy Metals from Mining Wastewater Using Adsorption Combined with Constructed Wetland

Minerals ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 379 ◽  
Author(s):  
Ha Nguyen ◽  
Bien Nguyen ◽  
Thuy Duong ◽  
Anh Bui ◽  
Hang Nguyen ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Constructed Wetland ◽  
Pilot Scale ◽  
Common Reed ◽  
X Ray Diffraction ◽  
Combined System ◽  
Constant Flow Rate ◽  
Mining Wastewater ◽  
Scale Experiment ◽  
Removal Of Arsenic

This study was conducted to assess the removal of arsenic (As) and heavy metals from mining wastewater by the combination of adsorption, using modified iron-ore drainage sludge, and horizontal-subsurface-flow constructed wetland with common reed (Phragmites australis). The pilot-scale experiment with a constant flow rate of 5 m3/day was operated for four months using real wastewater from a Pb–Zn mine in northern Vietnam. Atomic absorption spectroscopy was used for elemental analysis in wastewater and plant. X-ray diffraction (XRD), surface charge measurements (by a particle charge detector (PCD)), Fourier-transform infrared (FTIR), and surface area Brunauer–Emmet–Teller (BET) measurements were performed to determine the characteristics of the adsorbent. The results showed that the average removals of As, Mn, Cd, Zn, and Pb by the combined system with limestone substrate during four months were 80.3%, 96.9%, 79.6%, 52.9%, and 38.7%, respectively. The use of another constructed wetland substrate, laterite, demonstrated better removal efficiency of As than limestone. The concentrations of As and heavy metals in the effluent were lower than the limits established by the QCVN 40:2011/BTNMT for industrial wastewater, which indicated the feasibility of combining adsorption and constructed wetland for the treatment of mining wastewater.

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