Have questions about water contaminants and advanced treatments? Here are your answers.


Whether you need to comply with the secondary contaminant standard or simply want to improve the quality of your water, the AD26 system from AdEdge might be the best solution. Here, we answer some of your questions.

Q: How does the system remove iron and manganese?

Contaminants are efficiently removed in the AD26 media beds through mechanisms of oxidation and coprecipitation. Some manganese adsorption also occurs. Depending on specific water chemistry, the system can achieve treatment efficiencies for these contaminants to meet secondary drinking water standards.

Related: Guest Blog: Q&A: How Does Arsenic Affect Our Water Systems?

Q: How does this system differ from other processes?

The media is a NSF 61-certified solid phase oxidation mineral. The systems have a small footprint compared to other technologies as design flow rates are typically 8 to 12 gpm/square foot of bed area. The technology does not require a long contact time, coagulants or permanganate addition /regeneration like greensand and other oxidation processes. No brine or salt is needed and the process does not generate hazardous waste.

Q: Is chlorine needed for the system, and does the media need replacement?

Related: Guest Blog: Q&A: What Are Your Arsenic Treatment Options?

A low hypochlorite dose is recommended for optimal performance of the AD26 systems. It enhances the removal process, improves longevity and keeps the surface of the media oxidized to prevent buildup of solids. Media life is typically 10 years before replacement.

Q: What experience has AdEdge had with iron and manganese removal?

AdEdge has implemented more than 90 full-scale AD26 systems for public water systems as well as multiple industrial and remediation project installations. One of our most notable projects is the Nation WWII Memorial in Washington, D.C. At that site, the water is pumped from the groundwater feed pumps to the dual vessel AD26 system following in-line hypochlorite (chlorine) injection. Hypochlorite solution is fed in-line through a computer-controlled metering and feed system capable of real time chlorine residual measurement and control. Iron and manganese are oxidized and filtered/adsorbed with the proprietary AD26 catalytic media based system.

Related: Guest Blog: Q&A: How Customized Treatment Systems Can Solve Your Arsenic Problem

About AdEdge Water Technologies
Founded in 2002 and headquartered just north of Atlanta, Georgia, AdEdge Water Technologies specializes in the design, development, fabrication and supply of packaged treatment solutions, specialty medias, innovative technologies and membranes that remove contaminants from process or aqueous streams. AdEdge has extensive experience in the removal of arsenic, iron, manganese, hydrogen, sulfide, fluoride, nitrate and uranium from water. For more information, call 866/823-3343 or visit www.adedgetech.com.


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