Manganese Removal by Oxidation and Mixed-media Filtration
Author : Carolyn C. Palmer
Publisher :
Page : 182 pages
File Size : 39,45 MB
Release : 1986
Category : Groundwater
ISBN :
Author : Carolyn C. Palmer
Publisher :
Page : 182 pages
File Size : 39,45 MB
Release : 1986
Category : Groundwater
ISBN :
Author : Bradley Martin Coffey
Publisher :
Page : 230 pages
File Size : 30,4 MB
Release : 1990
Category : Groundwater
ISBN :
Author : Elmer O. Sommerfeld
Publisher :
Page : 180 pages
File Size : 21,55 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 : Rajendra B. Shrestha
Publisher :
Page : 292 pages
File Size : 15,67 MB
Release : 2006
Category : Water
ISBN :
Author : Robin J. Casale
Publisher : American Water Works Association
Page : 222 pages
File Size : 23,2 MB
Release : 2002
Category : Science
ISBN :
This project summarizes current knowledge about manganese chemistry, treatment control strategies, manganese occurrence, distribution system issues, and long- and short-term health effects. The report overviews chemical oxidation, adsorption, biological filtration, and ion exchange techniques for removing manganese from drinking water. In addition to the literature review, a January 2001 workshop was convened to identify future manganese research needs. These research proposals are detailed in a prioritized, multiyear research agenda that describes a series of research projects and funding requirements. An extensive bibliography is provided, but no index. Annotation copyrighted by Book News, Inc., Portland, OR.
Author : J.H. Bruins
Publisher : CRC Press
Page : 162 pages
File Size : 39,43 MB
Release : 2017-03-16
Category : Technology & Engineering
ISBN : 1351652508
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 : Paul M. Kohl
Publisher : American Water Works Association
Page : 460 pages
File Size : 46,72 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. Tobiason
Publisher : International Water Assn
Page : 212 pages
File Size : 10,94 MB
Release : 2009
Category : Science
ISBN : 9781843392194
The overall goal of this project was to increase k
Author : Bruno Langlais
Publisher : Routledge
Page : 588 pages
File Size : 18,84 MB
Release : 2019-07-16
Category : Juvenile Nonfiction
ISBN : 1351426141
With the advent of the Safe Drinking Water Act Amendments of 1986, many water utilities are reexamining their water treatment practices. Upcoming new regulations on disinfection and on disinfection by-products, in particular, are the primary driving forces for the big interest in ozone. It appears that ozone, with its strong disinfection capabilities, and apparently lower levels of disinfection by-products (compared to other disinfectants), may be the oxidant/disinfectant of choice. Many utilities currently using chlorine for oxidation may need to switch due to chlorine by-product concerns. Utilities using chloramines may need to use ozone to meet CT requirements. This book, prepared by 35 international experts, includes current technology on the design, operation, and control of the ozone process within a drinking water plant. It combines almost 100 years of European ozone design and operating experience with North American design/operations experience and the North American regulatory and utility operational environment. Topics covered include ozone chemistry, toxicology, design consideration, engineering aspects, design of retrofit systems, and the operation and economics of ozone technology. The book contains a "how to" section on ozone treatability studies, which explains what information can be learned using treatability studies, at what scale (bench, pilot, or demonstration plant), and how this information can be used to design full-scale systems. It also includes valuable tips regarding important operating practices, as well as guidance on retrofits and the unique issues involved with retrofitting the ozone process. With ozone being one of the hottest areas of interest in drinking water, this book will prove essential to all water utilities, design engineers, regulators, and plant managers and supervisors.
Author : Samuel D. Faust
Publisher : CRC Press
Page : 600 pages
File Size : 30,3 MB
Release : 2018-05-04
Category : Technology & Engineering
ISBN : 1351461125
This second edition demonstrates how chemistry influences the design of water treatment plants and how it should influence the design. Historically, water treatment plants have been designed from hydraulic considerations with little regard to chemical aspects. The many chemical reactions used for removal of pollutants from water simply cannot be forced to occur within current designs. This book re-examines this traditional approach in light of today's water quality and treatment. Will current water treatment processes be sufficient to meet future demands or will new processes have to be devised? Chemistry of Water Treatment assesses the chemical and physical efficacies of current processes to meet the demands of the Safe Drinking water Act, providing expert information to persons responsible for the production of potable water into the next century.