Landia wastewater mixers stand test of time

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Fifteen years on since a major 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 were seen at the time as the equipment that could offer the very best in performance and efficiency, as well as the most accurate, predictable, low-maintenance whole life costs.
From smaller sites with just a few mixers, right through to the utility’s two largest treatment plants (40 mixers and 39 mixers respectively), the 3kW to 5.5kW, 150rpm units were supplied, installed, tested and commissioned by Landia, who also now carry 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 ever flowmakers to have a propeller rotation of just 150 rpm.
Landia’s Paul Daviescommented: “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 – not just some pathetic 12-month warranty fob-off that shouldn’t be part of any sentence with the word ‘longevity’ in it.”

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