Prineville RO Water Treatment Plant Expansion

Start Date: October 2002
Completion Date: December 2002
Delays: None
Liquidated Damages: None
Change Orders: None
Contact: Brad Macek, Asst. Utility Dir., Prineville RO-WTP, FL

The City of Port St. Lucie contracted with WPC Industries to upgrade the existing 4 MGD of existing capacity at the Prineville Reverse Osmosis Water Treatment Plant. The Water Treatment Division of Layne Christensen Company was contracted to retrofit and make modifications to the existing two 2 MGD trains.

The improvements increased the reliability and capacity of the existing trains by adding pressure vessels and additional Hydranautics ESPA1 membranes. In addition to these improvements, isolation valves and re-work of the stainless steel headers were completed to allow isolation of the first stage pressure vessel sets for improved cleaning of the membranes. The additional membrane area also lowered operating flux and performance of the existing two trains.

Layne's scope included providing and installing specific improvements such as addition of clean-in-place isolation valves to make it easier for the operators to perform efficient cleanings and feed flow balancing valves to ensure proper balance between the existing two 2 mgd RO trains and the new three 2 mgd RO trains that were all fed off a common header high pressure feed header.

SOURCE: Layne Christensen