Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 143,390 pages of information and 230,040 images on early companies, their products and the people who designed and built them.

Aztec Environmental Control

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Aztec Environmental Control

1983 Introduced the world's first self-cleaning colourimetric analyser.

Initially the analyser monitored residual coagulants such as iron and aluminium. Later the Aztec range was expanded to provide a suite of online analysis solutions including automatic coagulation control systems.

1991 Aztec Environmental Control was acquired by Severn Trent Water

Merged with Capitol Controls

Subsequently became Severn Trent Services Ltd.

2007 ABB acquired the Aztec range from Severn Trent Services.

See Also

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Sources of Information

  • [1] ABB history