Sewer upgrade to improve water quality in local river

A project to upgrade sewage treatment works in Edmonton London will improve the environmental impact on the area's local river, says Thames Water.

The sewer treatment works at Edmonton, London

The sewer treatment works at Edmonton, London

The project is set to improve the existing works which struggles to deal with the peak flows entering the site. During these flows the storm tanks store the excess, which is not treated, and can spill over into the River Lea causing environmental problems.

Improvement work has included building two extra storm tanks to hold the excess sewage flows that come into the plant following heavy rain and reduce discharges of untreated sewage into the River Lea.

Installing new equipment to improve the quality of sewage treatment and help ensure the site meets strict new environmental standards is also part of the improvement project.

Thames Water said that the improvement works has been split into two sections. The first phase of the project was completed on August 23, while the second phase is due for completion on the December 17 2012.

The project was first announced in 2010 with a total investment of £50m.

Commenting on the works last year, Russell Waller, complex delivery manager for Thames Water, said: "Deephams is an ageing works. Some of the equipment at the site is nearing the end of its life, so these improvements will help make sure it keeps pace with new environmental standards and population growth."

The improvements have also been carried out to ensure the treatment works is able to meet a step-change in environmental standards set to be introduced in 2017.

According to Thames Water, the river water quality improvements will benefit wildlife in the river and local area. People living nearby will also benefit as the project is expected to reduce the amount of odour produced by the works.

Leigh Stringer


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