Scotmas Chlorine Dioxide System to be Used at Oswestry
30 March 2016
By Carolyn Parker
A pioneering public water treatment system Using Scotmas ClO2 Technology
As established leaders in Chlorine Dioxide technology, Scotmas Group are partnering with C2V+, a VolkerStevin and a CH2M HILL joint venture, to provide a pioneering new Chlorine Dioxide system on behalf of United Utilities. This is part of a £54m upgrade of the Oswestry water works sytem, supplying public water to Liverpool and Cheshire.
Darren Hynes, framework director for C2V+, said:
“We’re excited to be using a system of this size for the first time in the UK. Working with Scotmas will mean we are using the latest technology at Oswestry”.
The installation will be the first Chlorine Dioxide system of its scale at a UK water treatment works. Chlorine Dioxide is widely used in Europe and in the USA for the treatment of public water supplies.

Using Chlorine Dioxide for the pre-oxidation of iron and manganese contaminants in the water means engineers can retire the existing 23 slow sand filter beds. Once complete this will result in the plant treating up to 210 million litres of treated water per day for customers.
Alistair Cameron, Scotmas Managing Director, said:
“Chlorine dioxide is widely used around the world for producing safe, clean water supplies; and its advantages over traditional chlorination are well established. With a number of water treatment plants across Europe, the Middle East and Asia now relying on our ClO2 systems for safe and reliable water, we are delighted to have this opportunity to work with C2V+ on bringing this technology closer to home. We expect this to be the first of many with UU and other UK water utilities.”
Find out more about Scotmas’ work for the municipal water supplies sector here.