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Crystals 2017, 7(11), 345;

Biomineralization Mediated by Ureolytic Bacteria Applied to Water Treatment: A Review

Laboratory of Algal Biotechnology & Sustainability, Faculty of Marine Sciences and Biological Resources, University of Antofagasta, Antofagasta 1240000, Chile
Department of Chemical Engineering and Mineral Process, University of Antofagasta, Antofagasta 1240000, Chile
Science and Technology Research Center for Mining CICITEM, Antofagasta 1240000, Chile
Author to whom correspondence should be addressed.
Academic Editor: Jolanta Prywer
Received: 6 October 2017 / Revised: 2 November 2017 / Accepted: 4 November 2017 / Published: 17 November 2017
(This article belongs to the Special Issue Biological and Biogenic Crystallization)
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The formation of minerals such as calcite and struvite through the hydrolysis of urea catalyzed by ureolytic bacteria is a simple and easy way to control mechanisms, which has been extensively explored with promising applications in various areas such as the improvement of cement and sandy materials. This review presents the detailed mechanism of the biominerals production by ureolytic bacteria and its applications to the wastewater, groundwater and seawater treatment. In addition, an interesting application is the use of these ureolytic bacteria in the removal of heavy metals and rare earths from groundwater, the removal of calcium and recovery of phosphate from wastewater, and its potential use as a tool for partial biodesalination of seawater and saline aquifers. Finally, we discuss the benefits of using biomineralization processes in water treatment as well as the challenges to be solved in order to reach a successful commercialization of this technology. View Full-Text
Keywords: biomineralization; calcite; seawater; wastewater; heavy metals removal; biodesalination biomineralization; calcite; seawater; wastewater; heavy metals removal; biodesalination

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Arias, D.; Cisternas, L.A.; Rivas, M. Biomineralization Mediated by Ureolytic Bacteria Applied to Water Treatment: A Review. Crystals 2017, 7, 345.

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