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It is presented an alternative biological method based on biomineralization mechanisms of Magnetotactic Bacteria (MTB) for the removal in groundwater, of soluble elements such as Feand Mn. In first place, it was compared the effectiveness of MTB retention methods for obtention of concentrated volumes in microorganisms, then, it was carried out an inoculation process in groundwater samples and evaluate the removal rate of Fe and Mn in constant conditions of pH and temperature. It was identified electromagnetic method is more efficient in MTB retention, and that the inoculation processes of an enriched solution with MTB in groundwater samples allow to get average removal rates of 47.86% for Fe and 15.26% for Mn. In addition, it was evaluated the removal rate of other metals due to magnetic properties of biominerals inside of MTB magnetosome. The highest removal in all cases occurred between the interval of 3 and 5 min of interaction and tended to stabilize in time.
This article was published in the following journal.
Name: Journal of environmental management
The cyanotoxin cylindrospermopsin was discovered during a drinking water-related outbreak of human poisoning in 1979. Knowledge about the degradation of cylindrospermopsin in waterbodies is limited. S...
The application of biochar-supported nanoscale zero-valent iron (biochar-nZVI) was successfully implemented in a field demonstration for the first time. To overcome the significant shortcomings of nZV...
To identify the relationship between microbial communities and groundwater quality parameters, especially typical groundwater contaminants including ammonium (NH), iron (Fe), and manganese (Mn), groun...
Designed for retaining suspended particles, rapid sand filters (RSFs) are widely used in drinking water treatment. There is increasing evidence that microbial processes within RSFs contribute to the t...
The manganese sludge from laboratory biological manganese removal filter column backwashing residue was used to modify the Chitosan Alginate Fe-sludge Beads. The Chitosan Alginate Fe-sludge Beads stre...
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Within many plants, such as seeds, nuts and cereals, there is a compound called phytic acid. Phytic acid has many beneficial properties, including producing molecules which slows down the ...
Objective: Report manganese serum levels and mortality in encephalopathic patients. Patients and participants: Consecutive patients aged > 18 years, with hepatic encephalopathy an...
This study will look at the amount of iron in infant formula and how that affects a child's gut development. The children of mothers who plan to formula feed their children will be randomi...
Many patients that are prescribed iron report gastrointestinal side effects. This research project aims to investigate if the gastrointestinal symptoms of taking iron supplementation are r...
A large group of bacteria including those which oxidize ammonia or nitrite, metabolize sulfur and sulfur compounds, or deposit iron and/or manganese oxides.
Manganese poisoning is associated with chronic inhalation of manganese particles by individuals who work with manganese ore. Clinical features include CONFUSION; HALLUCINATIONS; and an extrapyramidal syndrome (PARKINSON DISEASE, SECONDARY) that includes rigidity; DYSTONIA; retropulsion; and TREMOR. (Adams, Principles of Neurology, 6th ed, p1213)
Iron or iron compounds used in foods or as food. Dietary iron is important in oxygen transport and the synthesis of the iron-porphyrin proteins hemoglobin, myoglobin, cytochromes, and cytochrome oxidase. Insufficient amounts of dietary iron can lead to iron-deficiency anemia.
Inorganic chemicals that contain manganese as an integral part of the molecule.
A species of SHEWANELLA noted for its ability to reduce iron and manganese anaerobically.
Biological therapy involves the use of living organisms, substances derived from living organisms, or laboratory-produced versions of such substances to treat disease. Some biological therapies for cancer use vaccines or bacteria to stimulate the body&rs...