Fifteen years on since a UK water utility chose Landia as its framework supplier for anoxic mixers, over 200 of the units continue to work day and night across the extensive region.
Installed in anoxic zones during 2007 at over 20 wastewater treatment plants, the Landia POP-I Flowmakers offer performance and efficiency, as well as low maintenance whole life costs. From smaller sites with just a few mixers right though to the utility’s two largest treatment plants that house 40 and 39 mixers respectively, the 3kW and 5.5kW, 150rpm units were supplied, installed, tested and commissioned by Landia, which also carries out servicing twice per year.
With their slow revolutions and low floc shear, these Landia mixers are designed for the gentle treatment of activated sludge in continuous applications where sedimentation in anoxic or anaerobic tanks must be prevented. Installed with stainless-steel mounting equipment, the POP-I’s were the UK’s first flowmarkers to have a propeller rotation of just 150rpm.
Paul Davies, sales manager of Landia UK, commented: “Long before there was so much talk about the need for total expenditure, this major investment was way ahead of the game – very perceptively realising the significant benefits of introducing equipment with long-term maintenance and parts guarantees included. The water industry can learn a great deal from the capital, maintenance and energy savings that have been achieved by this water authority during the past 15 years.”