1. Removal of the separate layers of filter media and stockpiling for re-use
Case Study:
Slow Sand Filter Refurbishment
Introduction:
An integral part of the potable water treatment process are the slow sand filters, many of the treatment facilities across the UK use this method of water treatment, maintenance of these filters is essential to ensure water keeps flowing to its customers. The filters use gravity to pass water through a filtration process at the intermediate stage of the treatment.
Overview
As a trusted service partner, ALD has been tasked to carry out a floor refurbishment program at several treatment facilities across east Anglia, this includes the following tasks:
2. Demolition and removal of the deteriorating porous concrete floors
3. Deep cleaning of the concrete sub-structures and central channels
4. CCTV drain surveying
5. Repairs to the concrete sub-structures
6. Re-laying the new porous concrete floor blocks
7. Onsite mobile stone washing & separating into 10mm & 20mm sizing
8. 20mm stone layer replacement
9. 10mm stone layer placement
10. Lower sand placement
11. Carbon layer placement
12. Completed with a final layer of media sand
High-Precision with Minimal Disruption
ALD has invested heavily in specialist machinery equipped with the latest levelling and surveying technologies to ensure the filters are refurbished and maintained to the highest tolerances and standards.
Tailored and Hassle-Free Solutions
Feedback from the client has been good and our site teams are trusted to carry out the works with minimal disturbance to the treatment facilities.
