scholarly journals Versatile Bioelectrochemical system for heavy metals removal

2022 ◽  
Vol 334 ◽  
pp. 08006
Author(s):  
Martí Aliaguilla ◽  
Daniele Molognoni ◽  
Pau Bosch-Jimenez ◽  
Eduard Borràs
Keyword(s):  
Heavy Metals ◽  
Power Supply ◽  
Electrolysis Cell ◽  
Microbial Electrolysis Cell ◽  
Bioelectrochemical System ◽  
Anthropogenic Contamination ◽  
Mining Areas ◽  
Industrial Sites ◽  
Metals Removal ◽  
Double Chamber

Industrial activity has resulted in heavy metals anthropogenic contamination of groundwater, especially in industrial or mining areas. Bioelectrochemical systems (BES) can be used for metals removal and recovery from aqueous solutions. In the framework of GREENER project, double-chamber BES have been adopted to treat groundwater from industrial sites containing copper, nickel and zinc (Cu, Ni and Zn), among other contaminants. Two operation modes, (i) short-circuited microbial fuel cell (MFC), and (ii) power supply driven microbial electrolysis cell (MEC, poisoning the cathode at -0.4 V vs. Ag/AgCl), were studied for metals removal at lab-scale. Two control reactors were run to evaluate metals adsorption on cathodes and membranes, and the effect of anolyte composition. Synthetic water containing different concentrations of Cu, Ni and Zn were treated, and metals removal pathways were studied. MEC and MFC performed similarly and the highest removal efficiencies were 97.1±3.6%, 50.7±6% and 74,5% for Cu, Ni and Zn respectively, from initial concentrations in the range of 1.1-1.5 mM.

Removal of heavy metals in a flow‐through vertical microbial electrolysis cell

2019 ◽  
Vol 97 (10) ◽  
pp. 2608-2616 ◽  
Author(s):  
Louis‐B. Jugnia ◽  
Dominic Manno ◽  
Meghan Hendry ◽  
Boris Tartakovsky
Keyword(s):  
Heavy Metals ◽  
Electrolysis Cell ◽  
Microbial Electrolysis Cell ◽  
Removal Of Heavy Metals ◽  
Flow Through ◽  
Microbial Electrolysis

scholarly journals Long-term performance of a microbial electrolysis cell operated with periodic disconnection of power supply

RSC Advances ◽  
2018 ◽  
Vol 8 (30) ◽  
pp. 16842-16849 ◽  
Author(s):  
S. A. Hussain ◽  
M. Perrier ◽  
B. Tartakovsky
Keyword(s):  
Chemical Oxygen Demand ◽  
Power Supply ◽  
Oxygen Demand ◽  
Electrolysis Cell ◽  
Microbial Electrolysis Cell ◽  
New Approach ◽  
Microbial Electrolysis ◽  
Long Term Performance ◽  
Term Performance

This study describes a new approach for achieving stable long-term performance and maximizing removal of chemical oxygen demand (COD) in a Microbial Electrolysis Cell (MEC) by periodic disconnection of the MEC power supply.

Effect of soil type on heavy metals removal in bioelectrochemical system

2020 ◽  
Vol 136 ◽  
pp. 107596
Author(s):  
Jingran Zhang ◽  
Yanqing Liu ◽  
Yilun Sun ◽  
Hui Wang ◽  
Xian Cao ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Soil Type ◽  
Bioelectrochemical System ◽  
Heavy Metals Removal ◽  
Metals Removal

scholarly journals Evidence of Resistance of Heavy Metals from Bacteria Isolated from Natural Waters of a Mining Area in Mexico

Water ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 2766
Author(s):  
Alondra Escamilla-Rodríguez ◽  
Salvador Carlos-Hernández ◽  
Lourdes Díaz-Jiménez
Keyword(s):  
Heavy Metals ◽  
Minimum Inhibitory Concentration ◽  
Natural Waters ◽  
Inhibitory Concentration ◽  
Mining Area ◽  
Mining Areas ◽  
Metals Removal ◽  
Resistance Patterns ◽  
The Media ◽  
Minimum Inhibitory Concentration Range

This study focuses on identifying relationships between the content of heavy metals in water and the resistance patterns of different bacteria. Samples from watercourses in one of the most important mining areas in Mexico were collected. Seventy-one bacteria were isolated, and their resistance to Cr, Zn, Cu, Ag, Hg, and Co was studied. The Minimum Inhibitory Concentration range was determined, and a Multiple Metal Resistant index was calculated. After that, 11 isolated bacteria were chosen to estimate kinetic parameters. The obtained results show differences in the behavior of the studied bacteria concerning the presence of heavy metals in the media: (1) without effect, (2) inhibited growth; and (3) considerable inhibited growth. Finally, a Performance Index was proposed to select adequate bacteria for heavy metals removal; five bacteria were selected. Among them, Pseudomonas koreensis was identified as a good candidate for a future biosorption system since these bacteria can stimulate growth in the presence of all the metals tested.

Metals Related to Radionuclides and Heavy Metals Removal Using Photosynthetic Bacteria Immobilized Recovery Type Porous Ceramic

2010 ◽  
Vol 46 (3) ◽  
pp. 119-127 ◽  
Author(s):  
KEN SASAKI ◽  
CHIHIRO HARA ◽  
KENJI TAKENO ◽  
HIROSHI OKUHATA ◽  
HITOSHI MIYASAKA
Keyword(s):  
Heavy Metals ◽  
Photosynthetic Bacteria ◽  
Porous Ceramic ◽  
Heavy Metals Removal ◽  
Metals Removal

Analysis of Heavy Metal in Water used for Irrigation, Soil and Some Vegetables grown around Tin Mine Areas of Heipang District, Barkin-Ladi Local Government of Plateau State

2019 ◽  
pp. 111-119
Author(s):  
Agustina Onyebuchi Ijeomah ◽  
Rebecca Ngoholve Vesuwe ◽  
Bitrus Pam
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Food Safety ◽  
Safety Concern ◽  
Human Beings ◽  
Green Beans ◽  
Green Pepper ◽  
Transfer Factors ◽  
Mining Areas ◽  
Plateau State

Vegetables growing in mining areas have become a serious food safety concern because of the high levels of heavy metals always associated with mining. In this study, water used for irrigation, soil, cabbage, green pepper and green beans grown in tin mine areas of Heipang District, Barkin-Ladi LGA of Plateau State were analyzed for lead, cadmium and zinc, using Atomic Absorption Spectrophotometer (AAS). The concentrations of the heavy metals in water, soil, vegetables were all in the order Pb, >> Cd > Zn. In the vegetables, the order was: Pb → cabbage > green beans > green pepper; Cd → green beans > cabbage > green pepper; Zn → cabbage > green pepper = green beans. The transfer factors for all the metals (heavy metal in plant / heavy metal in soil) ranged from 0.95 to 1.48. There were high levels of Pb and Cd in all the vegetables, which may be attributed to the metals in the water used for irrigation. Whilst the concentration of Zn in all the samples were lower than recommended limits, the levels of Pb and Cd in the water, soil and vegetables were higher than the WHO/FEPA standard recommended limits reported for vegetables. The Cd concentrations of the vegetables also exceeded the tolerance thresholds for animals and human beings and therefore consumption of vegetable from the area would endanger the health of the population.

Metals Removal and Recovery by Arthrobacter sp. Biomass

1992 ◽  
Vol 26 (9-11) ◽  
pp. 2149-2152 ◽  
Author(s):  
A. Grappelli ◽  
L. Campanella ◽  
E. Cardarelli ◽  
F. Mazzei ◽  
M. Cordatore ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Industrial Wastes ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
Real Possibility ◽  
Metals Removal ◽  
Metal Capture ◽  
Accumulation Of Metals ◽  
Removal And Recovery

Experiments on the real possibility of employing microorganisms to capture inorganic polluting substances, mainly heavy metals from urban and industrial wastes, are running using bacteria biomass. Many strains of Arthrobacter spp., gram-negative bacteria, diffused in the soil also inacondition of environmental stresses, have been proved to be particulary effective in heavy metal capture (Cd, Cr, Pb, Cu, Zn). The active and passive processes in accumulation of metals by bacteria were studied. Our experiments have been done on fluid biomass and on a membrane both for practical use and for an easy recovery.

scholarly journals Technologies Developing in Heavy Metals’ Removal from Water

Water ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 860
Author(s):  
Konstantinos Simeonidis ◽  
Manassis Mitrakas
Keyword(s):  
Heavy Metals ◽  
Drinking Water ◽  
Water Resources ◽  
Human Health ◽  
Urban Wastewater ◽  
Heavy Metals Removal ◽  
Metals Removal ◽  
Drinking Water Resources

Elevated concentrations of heavy metals in drinking water resources and industrial or urban wastewater pose a serious threat to human health and the equilibrium of ecosystems [...]

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