Removal of Soluble Manganese from Water by Oxide-coated Filter Media
Author : William R. Knocke
Publisher :
Page : 116 pages
File Size : 48,78 MB
Release : 1990
Category : Manganese oxides
ISBN : 9780898675085
Author : William R. Knocke
Publisher :
Page : 116 pages
File Size : 48,78 MB
Release : 1990
Category : Manganese oxides
ISBN : 9780898675085
Author :
Publisher :
Page : pages
File Size : 21,51 MB
Release : 1989
Category :
ISBN : 9789990526752
Author : Peter B. Merkle
Publisher :
Page : 520 pages
File Size : 25,97 MB
Release : 1995
Category :
ISBN :
Author : Paul M. Kohl
Publisher : American Water Works Association
Page : 460 pages
File Size : 16,36 MB
Release : 2006
Category : Drinking water
ISBN : 1583215042
This research study describes the chemistry and suggested treatment of manganese in drinking water, with the goals of reducing customer complaints and improving perceived water quality. The problems are aesthetic-water discoloration (usually black or dark red), clothing and fixture staining, turbid water sediments, and, at very high levels, metallic taste.
Author : J. H. Bruins
Publisher : CRC Press
Page : 162 pages
File Size : 24,26 MB
Release : 2018-09-27
Category :
ISBN : 9781138373471
In The Netherlands, Belgium and other European countries, manganese is removed by conventional groundwater treatment with aeration and rapid (sand) filtration. Such a treatment process is easy to operate, cost effective and sustainable, because it does not make use of strong oxidants such as O3, Cl2, ClO2 and KMnO4 with the associated risk of by-product formation and over or under dosing. However, application of aeration-filtration is also facing drawbacks, especially the long ripening time of filter media. Due to the long ripening time, water companies have to waste large volumes of treated water, making this process less sustainable. Also, costs associated with filter media ripening (man power, electricity, operational and analysis costs) are high. Therefore decreasing the filter ripening time, regarding manganese removal is a big issue. Although already extended research has been carried out into manganese removal, the controlling mechanisms, especially of the start up face of filter media ripening, are not fully understood yet. The emphasis of this thesis is to provide a better understanding of the mechanisms involved in the ripening of virgin filter media, regarding manganese removal and how to shorten or completely eliminate the long ripening period of filters with virgin material. This thesis therefore highlights the role of the formation of a manganese oxide coating on virgin filter media. Characterization and identification revealed that the responsible manganese oxide for an effective manganese removal was Birnessite. It was found that Birnessite, formed at the beginning of the ripening process was of a biological origin. Based on the knowledge that manganese removal in conventional groundwater treatment is initiated biologically, long ripening times may be reduced by creating conditions favouring the growth of manganese oxidizing bacteria, e.g., by limiting the back wash frequency and / or intensity. Additionally, this thesis also shows that the use of freshly prepared manganese oxide, containing Birnessite, can completely eliminate filter media ripening time.
Author : Robert W. Hungate
Publisher :
Page : 154 pages
File Size : 35,58 MB
Release : 1988
Category : Water
ISBN :
Author : Elmer O. Sommerfeld
Publisher :
Page : 180 pages
File Size : 23,5 MB
Release : 1999
Category : Computers
ISBN :
The presence of iron and manganese in drinking water are generally not hazardous to health. However, there are few things are more alarming to customers than seeing red water or black water come out of their faucets. This book offers an analysis of current and emerging methods for iron and manganese removal as well as guidance for handling residuals. Using firsthand field experience and detailed case studies, the authors explain the processes to follow.
Author : Elizabeth Eddy Smith
Publisher :
Page : 236 pages
File Size : 29,35 MB
Release : 1997
Category : Manganese oxides
ISBN :
Author : Pingkuan Di
Publisher :
Page : 154 pages
File Size : 37,68 MB
Release : 1994
Category : Heavy metals
ISBN :
Author : J. Tobiason
Publisher : International Water Assn
Page : 212 pages
File Size : 48,93 MB
Release : 2009
Category : Science
ISBN : 9781843392194
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