The saga of planning a membrane softening (MS) / nanofiltration (NF) WTP in the Ohio central city of Marysville to augment an existing lime soda softening facility. Investigation of surface discharge proved not practical because of outside the zone average (OMZA) targets set by Ohio EPA. This necessitated designing and permitting deep wells for ...

The case study of the 6 year project for the Tate Monroe Water Assoc. Inc. membrane softening (MS) / nanofiltration (NF) WTP at Freedom Crossing, OH. Comparing piloting results and operating results for the extra-large 18? dia., selected in lieu of the standard 8? dia. membrane elements. Large membranes for a small plant. Also included is the p...