M047 City of Midway Water Treatment

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M047 City of Midway Water Treatment

The city of Midway had two well pumps each with the capacity of 135 gpm as part of their municipal water treatment system. Lab analysis of the well water indicated high levels of iron and manganese that exceeded TCEQ requirements. The high levels of iron and manganese were the primary cause of water discoloration.

WETS performed a pilot study test to determine the most efficient method for iron and manganese removal from water. Coagulation and flocculation were employed to produce the desired “floc” which was then filtered out by the dual media filter. ACH was used as a coagulant and various polymer-based flocculants were also utilized to induce the flocculation process. This treatment reduced iron and manganese levels well below the maximum levels set by the TCEQ.

WETS recommended using their WAFU technology, which combines a gravity filtration system with aeration, which provides advantages over the conventional aerator and filter units for aeration water treatment.

WETS project scope included providing and installing two 5 ft x 16 ft fiberglass filter with aeration on the top and filtration at the bottom (WAFU Technology TM of WETS LLC); providing two 70 gpm transfer pumps; providing flow meter for the backwash; providing a mixer for coagulant and polymer dosing; and providing a control panel including Allen Bradley PLC, display monitor, wireless capability, and VFD on the pumps.

Client : The city of Midway

Year: 2022

Category: Filter