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trickling filter; bacterial bed | |||
percolating filter; biological filter; bacterial bed A device that removes some suspended solids from sewage. Air and bacteria decompose additional wastes filtering through the sand so that cleaner water drains from the bed | |||
percolation filter; sprinkling filter | |||
biofilter | |||
dripper; trickle filter; trickling biofilter | |||
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biological purification body |
lit bactérien: 28 phrases in 6 subjects |
Chemistry | 1 |
Construction | 2 |
Engineering | 1 |
Environment | 11 |
Medical | 1 |
Natural resourses and wildlife conservation | 12 |