Water utilities and developers

Water treatment

Halcrow offers a range of consultancy services relating to the design, installation, enhancement, refurbishment and replacement of water treatment plants.

Halcrow is able to identify proven cost effective solutions for new and improvements to existing water treatment schemes

Halcrow has a wide range of experience in potable water treatment for both surface and ground waters using a variety of techniques.

Conventional designs include screening, aeration, coagulation, disinfection, flocculation, clarification either by settlement or dissolved air flotation (DAF) and various filtration techniques.

Correct knowledge and application of chemicals are critical for effective water treatment compliant with the latest exacting quality standards; Halcrow is experienced in provided fully automated process control systems.

Halcrow has experience of membrane technology for the removal of impurities such as bacteria, viruses, large molecular compounds and for desalination of seawater and brackish waters.

Further treatment processes have included the use of ozone and granular activated carbon (GAC) before final disinfection of the treated water.

The by-products of water treatment always need due consideration and Halcrow has identified cost effective sludge treatment processes.