Filtronics, Inc. Approved by TCEQ for Treatment Technology for Arsenic, Iron and

Filtronics, Inc. of Anaheim, California is pleased to announce they are one of the
first companies to receive approval from the Texas Commission on
Environmental Quality (TCEQ) for their treatment technology for the removal of
arsenic, iron and manganese at the filtration rate of 10 gallons per minute per
square foot.
This high filtration rate is significant for several reasons. Conventional systems
must operate at a much lower rate to achieve comparable results, often 3 to 5
gallons per minute. The benefit is substantial savings in the initial capital investment
for smaller, compact equipment and a very small footprint. Significant
cost savings are realized by the construction and use of smaller facilities and the
increased water production from the high filtration rate with less waste and
handling. The smaller filter size also translates into lower wash water
requirements and further enhances the backwash-to-filtration ratio for a more
efficient system.
The leading environmental agency for the state of Texas issued their approval
early last year. Filtronics has two filtration systems operating very successfully,
continually exceeding the effluent requirements imposed by the Environmental
Protection Agency (EPA) and the TCEQ.
About Filtronics, Inc.
Filtronics, Inc. is a leading manufacturer of municipal and industrial water
treatment systems. Founded in 1974, the internationally acclaimed company with
headquarters in Anaheim, California has been in the forefront of water
purification technology for nearly 40 years. An authorized dealer of NXT-2Ò
media, along with their full product line of ElectromediaÒ products, the company
is well known as successful arsenic, iron and manganese removal specialists
producing the highest quality environmentally friendly systems using the best
available technology.
Contact: Filtronics, Inc.
Email: info@filtronics.com
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NXT-2 Media Extends Bed Volumes

NXT-2 is a patented media which provides users with the lowest treatment costs per thousand gallons for adsorption technology. This is due to the high surface area of the media, which is often times greater than 250 m2/gram.  High surface area increases the medias capacity for arsenic adsorption and extends bed volumes.

In addition to the high surface area, NXT-2 is stable. Once the arsenic is bound to the media, NXT-2 will not release the bound arsenic in the event of pH upset. Release or “spiking” occurs when the pH of the water exceeds the zeta point pH of the media. NXT-2 has a high zeta point pH of 9.5 while many iron based medias have a zeta point of 7.8 pH. This stability reduces the potential to distribute water which has high arsenic concentrations  in excess of the EPA standard, due to loss of pH control.

For your smaller arsenic removal projects, NXT-2 is a cost-effective solution.

Learn more by downloading our technical bulletin here:  http://www.filtronics.com/literature/technical/media/nxt-2-technical.pdf

NXT-2 is highly stable and extends bed volumes.

NXT-2 is a patented media which provides users with the lowest treatment costs per thousand gallons for adsorption technology. This is due to the high surface area of the media, which is often times greater than 250 m2/gram.  High surface area increases the medias capacity for arsenic adsorption and extends bed volumes.

In addition to the high surface area, NXT-2 is stable. Once the arsenic is bound to the media, NXT-2 will not release the bound arsenic in the event of pH upset. Release or “spiking” occurs when the pH of the water exceeds the zeta point pH of the media. NXT-2 has a high zeta point pH of 9.5 while many iron based medias have a zeta point of 7.8 pH. This stability reduces the potential to distribute water which has high arsenic concentrations  in excess of the EPA standard, due to loss of pH control.

For your smaller arsenic removal projects, NXT-2 is a cost-effective solution over other leading adsorptive media.

Learn more by downloading our technical bulletin here:  http://www.filtronics.com/literature/technical/media/nxt-2-technical.pdf

Arsenic Basic Process Assessment Guide

The concentraion of Iron in source water can be one of the main drivers in technology selection, therefore the presnece of iron will play a prominent role in technology selection and the treatability of a given water source.  The most effective arsenic removal processes available are iron-based treatment technologies such as chemical coagulation/filtration with iron salts and adsorptive media with iron-based products.  These methods are particularly effective in removing arsenic because iron has a strong affinity to adsorb arsenic.  Because of the unique role iron plays in facilitating arsenic removal, the level of iron in the source water is a primary consideration in the selection of an optimal treatment approach.

Arsenic to Iron ratio chart

The above chart shows a detailed description of the range of iron concentrations relative to arsenic concentrations and how the Fe:As ration could influence the treatment technology chosen.

  • HIGH iron levels (>0.3 mg/L).  HIGH Fe:As ratio (>20:1)
    Iron removal processes can be used to promote arsenic removal from drinking water via adsorption and co-precipitation.  Source waters with this ratio are potential candidates for arsenic removal by iron removal.  (A)
  • MODERATE iron levels (>0.3 mg/L). LOW Fe:As ratio (<20:1)
    If the iron to arsenic ratio in the source water is less than 20:1, then a modified treatment process such as coagulation/filtration with the addition of iron salts should be considered. (B)
  • LOW iron levels (<0.3 mg/L).
    Technologies such as adsorptive media, coagulation/filtration, and ion exchange are best suited for sites with relatively low iron levels in their source waters at less than 300 ug/L, the secondary MCL for iron. (C)

This process selection is very basic and the removal capacities depicted are meant to be a general rule of thumb.  It is important to run a General Mineral Analysis on your water to determine the best treatment approach.

Filtronics announces new EM-Mini low flow system for the removal of arsenic, iron, manganese and other metals.

Filtronics EM-mini SystemFiltronics EM-mini packaged water treatment systems are factory assembled, fully self-contained and specifically designed for applications 100 gpm or less. Coming in standard configurations, the EM-mini features a smaller footprint at the lowest capital cost in the industry making them perfect for budget minded small communities, schools, commercial or industrial facilites needinga simple, economical solution. To optimize performance, the EM-mini utilizes our NSF certified Electromedia® which allows for higher filtration rates, minimal chemical dosage, and never needs replacement.

Contact your local Filtronics Rep to learn more.