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Based on the above success a number of other B1 plants were constructed at Kirkmicheal, Tomnavoulin for North of Scotland Water, Balquhidder for East of Scotland Water, Ballygrant, Carrick Castle, Dervaig for West of Scotland Water and Eredine for Argyll & Bute District Council.

2.3 CIO Tubular Membrane Module

The initial design of tubular membrane plants utilised PCI standard stainless steel B1 module design. In order to reduce construction costs significant development has gone into producing a tubular membrane module that can compete with spiral wound designs for the targeted plant size range of up to approximately 3.8 Mid.

This module, known as the CIO, contains over 4 times the membrane area of the B1 modules and is manufactured in ABS plastic. The plant is skid mounted and is an extremely compact plant.

The first CIO plant treating 440 m3/d, has been installed at Gorthleck in May 1998 for the North of Scotland Water Authority. North of Scotland Water Authority capital programme allows further nanofiltration plants to be constructed. Three nanofiltration plants are currently under construction or have been recently commissioned for the East of Scotland Water Authority. East of Scotland Water Authority capital programme allows further nanofiltration plants to be constructed. West of Scotland Water Authority have entered into a framework agreement with PCI Leopold to supply nanofiltration plants.

In total, more than twenty PCI Leopold nanofiltration plants are operating in Scotland.

Overseas, interest in the Fyne treatment process continues to grow with the recent order for a plant at Chapel Island, Canada being one of the highlights.

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