Iron and Manganese Removal Using Greensand Pressure Filtration

Greensand tanks at the James J. McKeon Water Treatment Facility in North Attleboro, MA

Tata & Howard conducted a Water Quality Study that reviewed the Town of North Attleboro, Massachusett’s corrosion control practices, and evaluated changes in quality, specifically the increased levels of iron and manganese. The manganese concentrations in these wells had consistently increased during the past decade. The pilot treatment study for manganese removal with greensand pressure filtration was conducted at the Kelley Wells 1 and 2 and was a success. Tata & Howard completed the design of the 2.0 mgd capacity treatment facility and provided engineering services during the construction of the facility.

The design included the installation of a SCADA system for monitoring and control of the treatment facility and two well pump stations.  A second operator work station was installed at the remote Water Department office which allowed both monitoring and control of the treatment facilities from this remote site.  In addition, the operator work station was linked to the existing Autocon SCADA system which continued to monitor and control the remaining water system pumping stations and storage tanks and provide tank level signals for the establishment of start/stop setpoint controls for the new treatment facility and associated wells.

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