Knockenjig, Waste Treatment Plant
Sewage Works (Period Unassigned)
Site Name Knockenjig, Waste Treatment Plant
Classification Sewage Works (Period Unassigned)
Alternative Name(s) Knockenjig Sewage Farm; Kirkconnel Sewage Works; River Nith
Canmore ID 277233
Site Number NS71SE 69
NGR NS 74934 11533
NGR Description Centred NS 74934 11533
Datum OSGB36 - NGR
Permalink http://canmore.org.uk/site/277233
- Council Dumfries And Galloway
- Parish Kirkconnel
- Former Region Dumfries And Galloway
- Former District Nithsdale
- Former County Dumfries-shire
Publication Account (2007)
The first purpose-built combined sewage and refuse plant to be built in Scotland. It was opened by the Secretary of State in 1953. The sewage treatment plant comprises grit channels, screens and settling tanks, biological filters and a humus tank. The refuse plant, now no longer in use, comprised a reception hopper, trummel screen for the removal of ash, stones etc., magnetic separator for the extraction of ferrous
metal, picking belt for the separation of non-compostables and BJD hammer mill for chopping turnips.
For composting, material is prepared in layers of straw, pulverised refuse and sewage sludge. After a composting period of 13 weeks, the material is screened and bagged for sale under the trade name Eradite.
The plant was designed by J. C. Wylie to deal with sewage from a population of 5000 and refuse from a population of 8000. The contractor for construction of the plant was Dumfries County Council.
577654
R Paxton and J Shipway 2007
Reproduced from 'Civil Engineering heritage: Scotland - Lowlands and Borders' with kind permission from Thomas Telford Publishers.
