From tradition to innovation: An in-depth review of manganese removal techniques in water treatment

Abstract

Contamination of water is currently one of the alarming issues all around the planet. Water that is contaminated with manganese (Mn) could potentially give rise to functional and aesthetic complications. Removal of manganese is critical and often has substantial implications for the layout of treatment trains. Precipitation, ion exchange, depth filtration, oxidation, adsorption, biosorption, and biological methods are the traditional chemical, physical, and biological processes for removing Mn (II) from contaminated water. All these treatment processes have some advantages and disadvantages and are based on which the implementation of any process varies. In recent years, the use of biofiltration to eliminate manganese (Mn) from water has grown owing to the progress made in molecular techniques for studying microorganisms found in biological Mn elimination systems. This study aims to contribute to the existing research on Mn occurrence and highlight the historical and current removal strategies used in drinking water treatment. The main objective is to assist future researchers in developing more efficient technologies and clarify the subject matter.

Keywords

• Manganese
• efficient
• potable water
• microorganism

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