mechanical cleaning machine consisting of brushes and springs for use in the cleaning of biological solids, debris and growths from the baffles, weir and other surfaces of circular waste water clarifiers and thickeners used in industrial and municipal waste water treatment plants

'baffl':22 'biolog':15 'brush':6 'circular':28 'clarifi':31 'clean':2,13 'consist':4 'debri':17 'growth':19 'industri':36 'machin':3 'mechan':1 'municip':38 'plant':42 'solid':16 'spring':8 'surfac':26 'thicken':33 'treatment':41 'use':10,34 'wast':29,39 'water':30,40 'weir':23

WEIR-WOLF

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