Removal of iron and manganese in groundwater through magnetotactic bacteria.

Abstract:

: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 Fe+2and Mn+2. 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+2 and Mn+2 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+2 and 15.26% for Mn+2. 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.

journal_name

J Environ Manage

authors

Diaz-Alarcón JA,Alfonso-Pérez MP,Vergara-Gómez I,Díaz-Lagos M,Martínez-Ovalle SA

doi

10.1016/j.jenvman.2019.109381

subject

Has Abstract

pub_date

2019-11-01 00:00:00

pages

109381

eissn

0301-4797

issn

1095-8630

pii

S0301-4797(19)31099-0

journal_volume

249

pub_type

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