bacteria bed


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bacteria bed

n
(Environmental Science) a layer of sand or gravel used to expose sewage effluent, in its final stages, to air and the action of microorganisms. Compare filter bed1
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Noun1.bacteria bed - layer of sand or gravel used to expose sewage effluent to air and the action of microorganisms
filter - device that removes something from whatever passes through it
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the totality of the works is put out to tender in 2 lots or lots: lot 1: wwtp architectural works lot 2: wwtp electromechanical works this specification concerns lot 2: wwtp electromechanical works the assignment mainly comprises: demolition of the existing mechanical treatment and bacteria beds with all their infrastructure, the construction of a new mechanical treatment (auger pumping station, grid installation and sand catchers) and a septic material unit, 2 new sedimentation tanks with a sludge recirculation facility as well as adaptation work on the existing rbts, nbts, intermediate meetings, adaptation works at the selector tank, anaerobic tank, aeration basins, the sludge treatment building and service building.
Old fashioned bacteria beds were replaced with 24 activated sludge plants where naturally occurring bacteria are cultivated in aerated water
the totality of the works is put out to tender in 2 lots or lots: lot 1: wwtp architectural works lot 2: wwtp electromechanical works this specification concerns lot 1 - wwtp architectural works the assignment mainly comprises: demolition of the existing mechanical treatment and bacteria beds with all their infrastructure, the construction of a new mechanical treatment (auger pumping station, grid installation and sand catchers) and a septic material unit, 2 new sedimentation tanks with a sludge recirculation facility as well as adaptation work on the existing rbts, nbts, intermediate meetings, adaptation works at the selector tank, anaerobic tank, aeration basins, the sludge treatment building and service building.