The original Lagoon Type Leachate Treatment Plants (16 No. sites)
 

BRYN POSTEG LANDFILL LEACHATE TREATMENT PLANT

Location: Bryn Posteg Landfill Site, Montgomeryshire, Wales, UK
Operational: June 1983 to date
Operator: Montgomeryshire District Council (and now Evans Logistics)
Location: In the hills above Llanidloes, Powys, Wales, UK.

Bryn Posteg was the first full-scale Aspinwall (now Enviros) leachate treatment plant to be constructed in the UK, and it is still in operation.

The landfill is a fully engineered site on the site of former lead mine, at an altitude of nearly 400m AOD, where very high rainfall rates make leachate management an important issue. We were also responsible for the design of the early stages of the development of the landfill.

The aerated lagoon SBR system is used to treat leachate from the landfill at rates up to 150 cubic metres per day.

Aspinwall carried out all design, construction supervision, and process commissioning for the plant. Detailed operational monitoring was undertaken from 1983 to 1986, and a number of technical papers have been published about this site.

Why do we continue to display case studies of such old sites?
We agree that they are far from the “cutting edge”, and certainly not “state of the art” for the UK, and elsewhere. Nevertheless, the site owners continue to use them, and when asked we continue to provide support. Such designs continue to be appropriate for some projects, and in some countries.

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