Arsenic Removal and Arsenic Filtration Media Features and Performance

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Extensive field-testing and third party evaluation of the ATS arsenic removal media have demonstrated a number of superior product features and competitive advantages:

Non-Detectable Arsenic Results

Test results have proven that the ATS adsorption media will achieve total arsenic removal in concentrations over 1,000 parts per billion and in a wide range of water conditions.

Adsorption Capacity

Test results show high arsenic adsorption levels over a wide range of pH levels (6.0 to 9.0). When other typically competing parameters are present, (i.e. fluoride, sulphate) no significant changes in performance are shown. The ATS media have been tested under a wide range of water conditions. Under controlled tests no significant difference in adsorption rate or capacity is found. This results in a significant performance advantage when water conditions are known to change.

Through Put/Flow Rate

The rate of adsorption is significantly higher than any other media. A rate in excess of five (5) bed volumes per minute (BV/M) is possible with 1.0 BV/M standard. Other medias typically operate at flow rates of 0.1 to 0.2 BV/M. In other words, ATS media are able to effectively remove total arsenic contaminants at flows at least 5 times faster and under some conditions 20 times faster.

Oxidation Capacity

The ATS adsorption media will oxidize arsenic III and convert it to arsenic V. The oxidation capacity of the media is sufficient for applications where there is a limited daily volume, such as carafe Point-of-Use (POU) devices, or when a low level of arsenic III is present. ATS also has a companion oxidant media that is typically used in combination with ATS adsorption media. This on demand oxidant is effective in any water including industrial streams where high concentrations of arsenic III are present. NO CHLORINE/DECHLORINIZATION STEPS ARE REQUIRED.

Safe and Reliable

ATS adsorption and oxidation media are certified according to NSF/ANSI Standard 61: Drinking Water System Components - Health Effects. These ATS media have earned the Water Quality Association Gold Seal for material safety.

Good Tasting Water

Unlike reverse osmosis systems that remove all minerals from the water, ATS Systems keep natural minerals intact and produce a good tasting beverage.

Effective in the Presence of Interferences

Unlike exchange resins that give up significant capacity when other ions are present, ATS media complexes target ions. As a result, the ATS adsorption media binds arsenic without giving up capacity to common ions such as fluoride and sulphate.�

Durable and Tolerant To Changing Water Conditions

No chemical or operational modifications are necessary when water conditions change. Temperature, pH, and contaminants affect little or no change in adsorption performance of the ATS media.

Variety of Media Dimensions and Shapes

The standard media is graded in a flake/grain form ranging from 28 to 48 mesh sizes. When there are high volume flows from municipal or industrial applications, large bed sizes are required.

Robust Media

Unlike other adsorption media such as granulated ferric hydroxide, ATS media do not crumble and disintegrate with installation and use. ATS rigid, high composition strength media allow for simpler, more rapid installation and will not progressively compact, which causes loss of flow and pressure drop.

Non-hazardous Liquid Waste

Unlike ion exchange and reverse osmosis systems, each of which have a liquid waste stream containing concentrated arsenic, ATS Arsenic Removal Systems have no reject stream and require no backwashing or regeneration. There is no requirement to use chemicals or handle chemicals on site. ATS Systems have NO liquid waste stream.

Non-hazardous Solid Waste

Arsenic binds so tightly to the ATS media that the arsenic will not leach off and re-contaminate the environment. Used media is a safe non-hazardous solid waste that meets USEPA Toxicity Characteristic Leaching Procedure (TCLP). When the media reaches capacity it is simply disposed of in a non-hazardous landfill.

Ease Of Operation

ATS systems operate automatically on demand. The installation and management of replacing media is simple and does not require special training or equipment. Whether the ATS media is used in residential, community or industrial applications it is easy and safe to use.

Small Space Requirements

ATS media systems provide adsorption capacities many times greater than other known technologies. As a result, the total space or �foot print� requirement of an ATS media system is usually less than one half that of other equipment installations. This is a significant factor in homes and with small community systems where existing space is often limited.

Environmentally Responsible

ATS arsenic removal systems are designed to be environmentally responsible. Ion exchanges and reverse osmosis systems create a hazardous waste stream of concentrated arsenic. Reverse osmosis systems waste as much as 3-4 gallons of water for every gallon of water made. ATS systems treat contaminated water on contact, wasting no water and do not create a hazardous waste stream.