arsenic removal system Articles
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The costs of small drinking water systems removing arsenic from groundwater
The US Environmental Protection Agency (EPA) conducted an Arsenic Demonstration Program whereby the Agency purchased, installed, and evaluated the performance and cost of 50 small water arsenic removal treatment systems in the USA. A major goal of the program was to collect high-quality cost data (capital and operational and maintenance (O&M)) from the long-term operation (1–4 ...
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Desert Sands MDWCA #4, New Mexico - Case Study
In August 2008, AdEdge Water Technologies was contacted by the engineering firm Bohannan Huston to design, supply and start up an arsenic and iron removal system for Desert Sands MDWCA Well #4 in Anthony, New Mexico. The water chemistry had an arsenic level of 17 to 20 ppb and a naturally occurring iron level of 1 mg/L that will facilitate co-precipitation and removal of arsenic. AdEdge was ...
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Project profile - USEPA Arsenic demonstration project Stewart, Minnesota arsenic and iron treatment system
Background AdEdge Technologies Inc. (AdEdge) was selected in 2004 by the U.S. EPA as part of the Round 2 Arsenic Demonstration Program to implement full scale arsenic treatment for the city of Stewart, Minnesota. This public water system serves a community of approximately 600 people with average daily demand of 60,000 gallons per day. AdEdge was selected from the proposed alternatives by the ...
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Gore Hill, Montana - Case Study
In November 2009, AdEdge Water Technologies, LLC was contacted by Great West Engineering to provide an arsenic and iron removal system for the Gore Hill County Water Treatment Plant Wells #1 and #2 in Great Falls, Montana. The existing water system consisted of multiple wells feeding into a centralized distribution system with a maximum capacity of 150 gpm. The raw water for Plant #1 has an ...
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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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One process removes arsenic & iron from water in small Utah town
The Safe Drinking Water Act brought with it tough arsenic compliance standards, forcing cities large and small to comply with a maximum contaminant level of 10 parts per billion (ppb) or face stiff fines and even the potential shutdown of wells. Smaller towns such as Cannonville, Utah, face the most difficult challenge, due to manpower and budget constraints. Cannonville turned to Filtronics, ...
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Subsurface iron and arsenic removal: low-cost technology for community-based water supply in Bangladesh
The principle of subsurface or in situ iron and arsenic removal is that aerated water is periodically injected into an anoxic aquifer through a tube well, displacing groundwater containing Fe(II). An oxidation zone is created around the tube well where Fe(II) is oxidised. The freshly formed iron hydroxide surfaces provide new sorption sites for soluble Fe(II) and arsenic. The system's efficiency ...
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City of Aurora, Oregon - Case Study
In late 2009, Water Works Engineers contacted AdEdge to design and implement an arsenic, iron, and manganese removal system to serve the City of Aurora, Oregon. The existing water supply consisted of three wells feeding into a centralized distribution system with a maximum combined capacity of 500 gpm. The site had an arsenic level of 12 ppb, above the EPA's MCL of 10 ppb. The City of Aurora also ...
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World War II Memorial, DC - Case Study
In 2003, AdEdge Water Technologies began working closely with EarthTech, the assigned engineering firm responsible for specifying and selecting the various water treatment systems serving the new National World War II Monument in Washington, DC. Stormwater and groundwater control and treatment are essential aspects of this project given the location of the site on the Mall adjacent to the ...
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World War II Memorial, DC Iron & Manganese Reduction - Case Study
In 2003, AdEdge Water Technologies began working closely with EarthTech , the assigned engineering firm responsible for specifying and selecting the various water treatment systems serving the new National World War II Monument in Washington, DC. Stormwater and groundwater control and treatment are essential aspects of this project given the location of the site on the Mall adjacent to the ...
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Treatment of arsenic-contaminated water using in-line electrolysis, co-precipitation and filtration in Costa Rica
A novel treatment was tested with groundwater to investigate its arsenic removal under natural conditions. The system utilised in-line electrochlorination to oxidise water constituents without the need for external chemical supply. The oxidised arsenic and iron co-precipitated and were filtered via Greensand Plus™. The filter was catalytically active and provided an emergency oxidant. The ...
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Project profile - Lummi Island, Washington arsenic, iron, sulfide treatment system
Background In mid 2004, AdEdge Technologies Inc. (AdEdge) was selected by Miller Water Association and Anvil Corporation to assist in the design of a fullscale arsenic treatment project for this small community. Arsenic levels are alarmingly high at 0.18 mg/l, 18 times higher than the new Federal standard of 0.010 mg/l. In addition to arsenic, many of the homeowners using the water objected to ...
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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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