This Biwater AEWT plant is very unique. It is one of the earliest designed plants to use nanofiltration membrane technology to allow the city of Boca Raton to meet the federal and state water environmental requirements. It also allowed the city to increase their plant capacity by over 25% in order to meet the increasing population of the city whilst experiencing record drought years.

After researching the suitability of over six different commercially available membranes, it was decided that the membranes should be bespoke and designed specifically to meet the Client’s actual requirements.

The Biwater system is based on a two stage design that utilised ESNA membranes which were selected to be the most cost effective solution for the city.

The Boca Raton plant is designed to treat shallow ground water with a total dissolved solids (TDS) of less than 500 mg/l TDS to remove hardness, colour and other contaminants to meet drinking water quality standards in Florida, USA.

The plant is comprised of ten 3.76 MGD and two 1.88 MGD membrane softening trains and will operate continuously at a minimum of 85% permeate water recovery.