WHITCHURCH engineering firm Landia is set to increase their presence at one of the UK's leading potato suppliers.
Following the successful installation two years ago of Landia Chopper Pumps and a Landia Aeration System, waste-water experts MSE Systems is set to install a further three units.
During an upgrade to the customer’s potato processing factory, Chesterfield-based MSE Systems found that the addition of a high-efficiency Dissolved Air Flotation (DAF) plant would improve the activated sludge process by reducing oxygen demand.
To ensure that the plant could meet future needs, a new chemical addition system was introduced to remove suspended solids, free emulsified oils, grease and elevated residual phosphorus.
For odour control, an 11kW airjet system was installed to mix, aerate and control odours of screened potato effluent in a balance tank.
In addition, two submersible chopper pumps were brought in to pump screened potato effluent from a 4.5m deep pit (500m away), which included an additional 4m lift.
Andy Neal, design manager at MSE Systems, said Landia's chopper pumps were vital to the system's operation.
“Our challenge, which meant utilising a very small footprint between the existing plants, was to help our customer meet and maintain a stringent Environment Agency discharge consent, so that they remain fully compliant," he said.
"The Landia AirJet and chopper pumps have proved very reliable and cost-effective, so it gave us the confidence to invest further in this equipment as the best, long-term solution.
“For a new packing line, two submersible Landia Chopper Pumps will pump potato effluent, while a Landia Jet Mix system will mix organic sludge (dissolved solids three and five per cent) in a 60m3 tank.”
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