The customer's production plant manufactures and processes both coated fish and fresh fish products. The effluent produced by the manufacturing and processing site is discharged to the public sewer via four effluent mains.
Alpheus were invited to look at ways of improving the quality of effluent discharged to the sewer, and were subsequently chosen to construct and deliver the solution. We proposed a comprehensive review of the challenges faced, looking at historical data, implementing an intensive sampling regime to establish current effluent quality, and carrying out on-site trials with a variety of technologies to identify the most appropriate solution
The existing effluent treatment on site comprised of a series of screens and interceptor pits prior to discharge to the public sewer. Our solution retained and reconfigured the existing system and added oil skimmers to remove and recover fats, oils and grease, and lamella plate separators to remove solids and associated Chemical Oxygen Demand (COD).
Initially we were awarded a consultancy and feasibility contract to develop the initial proposal into a fully costed and robust solution. The detailed solution was accepted, and Alpheus secured a turnkey contract to design, build and commission a new wastewater treatment plant.
The construction phase involved combining three of the four effluent streams to a common point. We installed two effluent plants, one serving three of the existing effluent streams and the other serving the remaining effluent stream. Each plant comprised a lamella and oil skimmer unit.
The civil foundations for the plant required piling due to the underlying ground conditions and an effluent main crossing was created to traverse a roadway. All this work was undertaken whilst the factory remained in operation 24/7.
This successful project was completed on time and within budget and delivered three key benefits:
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