manganese in drinking water Articles
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Manganese in Madison’s Drinking Water
Public concern over events of manganese-discolored drinking water and the potential for adverse health effects from exposure to excess manganese reached a high level in 2005. In response, Public Health Madison Dane County, together with the Madison Water Utility, conceived and implemented a public health/water utility strategy to quantify the extent of the manganese problem, determine the ...
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7 Things to know about manganese
Manganese is one of the most abundant metals in the Earth’s crust and is an essential element for human consumption. But when it comes to its presence in drinking water, manganese brings a whole host of unique considerations ranging from health effects to aesthetic issues. Here are some key facts about manganese as it relates to drinking water. 1. Manganese is found in more than 100 ...
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Rethinking aesthetic guidelines for manganese and iron in drinking water
Manganese and iron are both internationally known causes of aesthetic issues in drinking water, however, there are limited data supporting their specific aesthetic guidelines, of which typical values are 0.05 mg/L Mn and 0.3 mg/L Fe. This study aims to clarify the concentrations at which off-flavors and off-colors caused by manganese and iron may be detected by consumers. Triangle tests of ...
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What are Causes of a Manganese Spike in Drinking Water?
We have discussed Manganese in surface water sources and the potential issues when stratification in the water source occurs. The level of dissolved Manganese in surface water i.e., with a reservoir can increase dramatically or ‘spike’ under certain conditions. Our previous blog explored those conditions and the issues which are caused by a manganese increase or ‘spike’. ...
By Coftec
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Manganese in Surface Water Sources
Manganese is one of the most abundant metals on the earth’s surface and various forms of it can be found in air, in soil, and in water. It doesn’t occur naturally in a pure state; oxides, carbonates and silicates are the most important manganese-containing minerals. When Manganese forms compounds in the environment with oxygen, sulfur (S), and chlorine, the resultant compounds are ...
By Coftec
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Identification of the bacterial population in manganese removal filters
The aim of this study was to identify bacteria present in ripened manganese removal filters for drinking water production. The bacterial population was identified with ‘next generation’ DNA sequencing, and specific bacteria were quantified with quantitative polymerase chain reaction (qPCR) and characterized by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry ...
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Intelligent data mining of vertical profiler readings to predict manganese concentrations in water reservoirs
Continuously monitoring and managing manganese (Mn) concentrations in drinking water supply reservoirs are paramount for water suppliers since high soluble Mn loads lead to discoloration of potable water. Despite the Mn level currently being manually sampled throughout the year, in subtropical monomictic lakes such as Hinze Dam, critical Mn concentrations in the epilimnion, where the water is ...
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Effect of soil-use on deep groundwater quality in Southern Chile
This study evaluated the effects of farming activities on the quality of deep well water in Southern Chile. In this area, the use of fertilisers is becoming more widespread and the accumulation and poor management of cattle slurry and silage sub-products increases the risk of contamination. The study was carried out in the province of Osorno, where rainfall occurs all year round (maximum in ...
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Manganese oxidation and bacterial diversity on different filter media coatings during the start-up of drinking water biofilters
Manganese removal is a typical concern in drinking water production. Biofiltration may be used when treating groundwater sources but the onset of manganese removal in virgin biofilters can vary considerably. The aim of this study was to investigate the effect of different filter media on manganese oxidation and bacterial diversity in biofilters during the start-up. The onset of manganese ...
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How NoMonia Works to Treat or Remove Your Ammonia - Case study
Most water utilities should have effective treatment methods for the filtration of arsenic, iron and manganese from drinking water sources. However, as ammonia becomes increasingly concentrated in groundwater throughout the U.S., many utilities around the country are searching for ways to successfully treat the contaminant, while also meeting U.S. Environmental Protection Agency (EPA) standards ...
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Permanganate Monitoring and Dosing for Drinking Water Treatment
Although an effective treatment aid, residual permanganate in your treated water is undesirable and often leads to consumer complaints when pink water pours out of their tap. Careful control of permanganate dosing can be achieved with real-time permanganate monitoring, resulting in many benefits including: Real-time feedback control to optimize permanganate dose Immediate corrective action to ...
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Project profile - Brandywine Elementary School New Palestine, Indiana AD26 arsenic, iron, manganese removal system
Background In July 2009, AdEdge Technologies Inc. (AdEdge) was contacted by Ladd Engineering, Inc. to provide a proposal for the Brandywine Elementary School in the Southern Hancock School District. Shortly thereafter, AdEdge was selected to provide a potable water treatment system to the school to reduce elevated levels of arsenic, iron, and manganese that exceeded drinking water standards. ...
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Drinking Water Treatment Municipality of Sainte-Geneviève de Batiscan, Quebec
A number of Quebec municipalities are confronted with feedwater problems of a bacteriological or physicochemical nature hardness, manganese, iron, dissolved solids) in the production of their drinking water. In many cases, these water sources do not meet government quality standards for drinking water. Membrane filtration preceded by the appropriate pretreatments can be a solution. Piloting ...
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