iron and manganese Articles
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Competitive mechanism of ammonia, iron and manganese for dissolved oxygen using pilot-scale biofilter at different dissolved oxygen concentrations
In this study, the competitive mechanism of ammonia, iron and manganese for dissolved oxygen (DO) in a biofilter was investigated, and a new start-up method of a biofilter for ammonia, iron and manganese removal was approved, which can effectively shorten the start-up period from 3–4 months to 51 days. The results demonstrated that when DO was sufficient (about 8 mg · L−1), ammonia, iron ...
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Transformation of an existing physicochemical plant for iron and manganese removal by the application of biological processes
A system for removing iron and manganese in groundwater, based on biofiltration technology, was developed at the Center of Sanitary Engineering of the National University of Rosario, Argentina. This process has been successfully applied in several new water treatment plants in Argentina. This paper describes the transformation of an existing plant for iron and manganese removal in groundwater ...
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Worthington Hills, Ohio - Case Study
AdEdge Water Technologies was contacted by Aqua Ohio to design, manufacture, and start up an iron and manganese removal system for the Worthington Hills community in Ohio. Worthington Hills had an iron concentration that fluctuated between 1.8 mg/L and 2.0 mg/L and a manganese concentration of 0.30 mg/L, well above the EPA secondary MCLs of 0.3 mg/L Fe and 0.05 mg/L Mn. The AdEdge treatment ...
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Interactions between ammonia, iron and manganese removal using pilot-scale biofilters
Pilot-scale biofilters treated with real groundwater were established to systemically investigate the interactions between ammonia, iron and manganese removal. When both of ammonia and manganese in influent were about 1 mg/L, they were quickly removed; but when manganese was above 3 mg/L, ammonia removal was affected significantly. When total iron was above 5 mg/L, the oxidization rate of ...
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Oxygen Generation for the Ozonation of Process and Drinking Water
Purity is in the Air Ozonation can help remove chemical elements such as iron or manganese as well as organic substances and bacteria from the untreated water. The oxygen needed for this is produced using special oxygen generators. Water is possibly the most important asset there is. However, untreated water is usually contaminated with various substances and has to be treated before it can be ...
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The study on chemical adsorption of dissolved oxygen on naturally formed co-oxides filter film in aqueous solution: combined characterization of XPS and TPD
The chemical adsorption of dissolved oxygen (DO) by co-oxide filter film-coated sands, formed through the filtration of ground water containing high concentrations of ammonia, manganese and iron, were studied. The results showed that the filter film consisted of silicates, carbonates, manganese and iron oxides and was constructed in a three-layer porous structure. The specific area of ...
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Talkeetna Water System, Alaska - Case Study
In late 2009, VEI Consultants contacted AdEdge Water Technologies to design, implement and startup an arsenic, iron, and manganese treatment system for the Talkeetna Water System in Talkeetna, Alaska. The existing water supply consisted of a well rated for 250 gpm with an arsenic level of 20 parts per billion (ppb). Iron and manganese levels were 0.04 mg/L and 0.10 mg/L respectively. The water ...
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Monitoring the effectiveness of advanced sorption materials for removing selected metals from water
There are a number of ways to remove heavy metals from water. Sorption on granular media based on iron oxides and hydroxides is currently the most used option. The experiment was carried out using sorption materials GEH, CFH 0818, CFH 12 and Bayoxide, which are primarily designed to remove arsenic from water. Four columns were prepared with an inner diameter of 4.4 cm for the purpose of the ...
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Data normalization identifies performance issues - Case Study
Introduction The Municipal RO Plant had been in operation for almost 18 years, producing ~290 gpm of permeate water for a city in Iowa, USA. It was one of the first RO plants in the state and the upper mid-west. In May 2008, city operators complained about a loss in system production. In response, the City contracted an RO membrane service provider to perform a cleaning regimen that produced less ...
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Adsorption of iron and manganese from acid mine drainage using 4A–zeolite synthesised from waste with high kaolin concentrations
This research analysed the behaviour of heavy metals adsorption by zeolites and their associated applicability for treating acid mine drainage (AMD). The type 4A zeolite used was synthesised by a hydrothermal reaction using kaolin derived from the waste pulping process of white paper. For the development of kinetic studies of adsorption, samples were collected from AMD that were located in the ...
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Treament of Hydrogen Sulfide (H2s)
This gas is often found in groundwater that contains iron and manganese. It is easily identified by its "rotten egg" odor. In addition to causing serious taste and odor problems, sulfide also promotes the growth of sulfur bacteria. Hydrogen sulfide can cause corrosion problems with iron and concrete pipes and reservoirs. Sulfides are formed by the anaerobic reduction of sulfates and organic ...
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Fabrication of catalytic ceramic membranes for water filtration
The paper describes the use of the layer-by-layer technique to coat ceramic membranes with iron and manganese oxide nanoparticles. The coatings are thin (Escherichia coli bacteria.Keywords: ceramic membranes, fouling, membrane filtration, ozone, ...
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From urban municipalities to polar bioremediation: the characterisation and contribution of biogenic minerals for water treatment
Minerals of biological origin have shown significant potential for the separation of contaminants from water worldwide. This study details the contribution of biologically derived minerals to water treatment operations, with a focus on filtration media from urban municipalities and remote cold regions. The results support biofilm-embedded iron and manganese to be the building blocks of ...
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Project profile - Blue Rhino Hamptonville, NC
Background In 2007, Blue Rhino, located in Hamptonville, NC, contacted AdEdge Technologies, Inc. (AdEdge) to install an iron and manganese treatment system. The amount of iron (5.6 mg/L Fe) and manganese (0.6 mg/L Mn) were well above the maximum contaminant levels of 0.3 mg/L Fe an 0.05 mg/L Mn respectively. The pH of the Blue Rhino site (6.10) was quite below the maximum contaminant level. Blue ...
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Project profile - Village of Corona, NM iron and manganese reduction
Background In the fall of 2008, AdEdge was selected by Village of Corona, NM to design, manufacture, and startup a water treatment system for the removal of iron and manganese. The water system that serves approximately 100 connections at Corona was plagued by high iron and manganese in the main water supply with iron from 0.26 – 2.8 mg/L and manganese levels from 0.094 - 0.17 mg/L, each ...
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Limited effectiveness of household sand filters for removal of arsenic from well water in North Vietnam
Since well water utilized for domestic purposes in the Red River Delta of North Vietnam has been reported to be polluted by arsenic, barium, iron, and manganese, household sand filters consisting of various components are used. Information regarding the effectiveness of various sand filters for removal of the four toxic elements in well water is limited. In this study, arsenic levels in 13/20 ...
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City of Roswell, Georgia - Case Study
In late 2011, the United States Army Corps of Engineers (USACE) approved plans to install a new well and build a new water treatment facility for the City of Roswell, Georgia. Barlovento LLC was selected during a competitive bidding process to provide an iron and manganese removal system for the new water supply. AdEdge Water Technologies, LLC was contracted to design, manufacture, and commission ...
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Project profile - troyer water system – Middlefield, Ohio arsenic, iron & manganese removal
Background In early 2008, AdEdge was selected by EcoWater Servisoft in Burton, Ohio to design, build, and startup an integrated treatment system to remove arsenic, iron, and manganese levels at the Troyer Water System in Middlefield to below the primary and secondary MCLs of 0.010 mg/L, 0.3 mg/L and 0.05 mg/L respectively. AdEdge first piloted a treatment system in spring of 2007 to satisfy OEPA ...
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Project profile - Bois Forte reservation palmquist site – Minnesota arsenic, iron, manganese treatment
Background In May 2007, AdEdge Technologies, Inc. was selected by Indian Health Services to supply an arsenic, iron, and manganese treatment system for the Bois Forte Reservation – Palmquist Community Water System in Minnesota. The system has two wells that combine together to serve potable water to 50 connections in the tribal community. The system serves a population of approximately 150 ...
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