When the city of Stromsburg, Nebraska, needed to find a solution for arsenic and manganese problems, it turned to AdEdge Water Technologies. In this case study, find out how the city successfully treated its water.

Customer: City of Stromsburg, Nebraska

Contaminant: Arsenic

Flow rate: 1.1 mgd

Related: Guest Blog: Q&A: Other Considerations for Arsenic Removal

Problem: In May 2011, AdEdge Water Technologies was selected among other vendors by Miller & Associates to supply a turnkey arsenic and manganese treatment system for the City of Stromsburg, Nebraska. Arsenic levels in the water ranged from 0.0178 mg/L to 0.0276 mg/L, and the manganese levels fluctuated between 0.05 mg/L and 0.12 mg/L, which is well above the EPA maximum contaminant levels of 0.010 mg/L arsenic and 0.05 mg/L manganese.

Solution: Several treatment options for the removal of these contaminants were considered; however, a GS+ approach was chosen for simultaneous co-contaminant removal and a smaller footprint than other processes. Project work was closely coordinated with Miller & Associates. AdEdge designed, manufactured and installed the treatment system.

The AdEdge ADGS+ system consists of two skid-mounted triplex packaged treatment units with 72-inch-diameter vessels. Raw water is oxidized with an iron-rich coagulant and added to the water before treatment to promote maximum removal of the arsenic and manganese. A polymer dosing pump is also included in the treatment system for effective process operation. The flocculated material after the polymer addition is captured in the ADGS+ media. The filters are backwashed and wastewater enters a holding tank where the solids settle before the water is recycled back to the head of the treatment system. A small portion of the wastewater is drained to a sanitary sewer to remove accumulated solids.

Installation was completed and the system began operation in July 2013. Since startup, both the arsenic and manganese concentrations have reached nondetectable levels.

About AdEdge Water Technologies
Headquartered just north of Atlanta, Georgia, AdEdge Water Technologies specializes in the design, development, manufacturing and supply of innovative water treatment solutions that remove contaminants from process or aqueous streams. AdEdge offers a full range of conventional and innovative treatment technologies to achieve trough standards including adsorption, coagulation, ion exchange, biofiltration and membrane-based solutions. For more information, call 866/8ADEDGE or visit www.adedgetechnologies.com.

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

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