Options for Expanding the Des Moines Saylorville Membrane Filtration Plant

This case study will describe the options considered for capacity expansion of Saylorville WTP in Des Moines, IA. The facility currently has submerged MF/UF filtration with a side stream RO system for softening. The alternatives analysis used a decision matrix which included capital and life cycle cost as well as non-economic factors to recommend long […]

Fargo 15 MGD Integrated Membrane WTP: Pilot Study, Design, Operation and Optimization

The City of Fargo, ND, owns and operates a 15 MGD membrane WTP that treats surface water that has high fouling potential: 8-16 mg/L organics, TDS up to 1,000 mg/L, and wide temperature swing 33-85 °F. The plant faces various challenges through seasons: pretreatment upsets (poor settling) and high operating pressures in winter and spring, […]

PFAS Contamination and Current Solutions

PFAS Contamination is becoming a larger issue as more source waters are being detected with trace amounts to high levels of contamination. Membrane filtration is a viable option, but creates other issues that require complimentary filtration equipment. How to help smaller municipalities that may struggle for capital funding for treatment systems gain access to government […]

Lessons Learned in Eight Years of Operating Multi-bore Ultrafiltration Membranes at the Byesville, Ohio Drinking Water Plant

In 2004, the Village of Byesville constructed Ohio’s first microfiltration membrane drinking water plant, designed to treat water from wells inside abandoned coal mines. After five years, the membranes began having integrity issues (fiber breaks), which steadily continued until, in 2014, the membrane trains were replaced with racks containing a unique multi-bore membrane that had […]