Works at Packington were required to meet an improved River Quality Outfall consent. The project was for the provision of a new Activated Sludge Plant (3 crude sewage oxidation ditches) to replace the existing secondary treatment (high rate BAF and biological filters).
This project included for the manufacture, delivery, erection, installation, commissioning and testing of all process, mechanical, civil, electrical, instrumentation and control plant associated with the construction of the plant.
The new plant comprised the following:
- Inlet Works (screening and grit removal)
- Mixing Chamber
- Anoxic Zone Tank
- Three Diffused Air Oxidation Ditches
- Two Final Settlement tanks
- Scum Removal System
- Washwater System
- Returned Activated Sludge Pumping Station
- Surplus Activated Sludge Pumping Station
- Sludge Thickening Plant
- Polyelectrolyte Make-up system
- Odour Control System
Mechanical Equipment:
- Auto Raked fine screen
- Screenings handling system
- Odour Control System
- Grit trap and classifier
- Mixers
- Blowers & Membrane Diffusers
- Rotating Half Bridge Scrapers
- Submersible Pumps Drum Thickener
- Polyelectrolyte dosing system
- Progressive Cavity Pumps
- Washwater Booster Unit