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| bacterial bed; biological filter; percolating filter; trickling filter | |||
| dripper; trickle filter; trickling biofilter | |||
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| 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; bacterial bed | |||
| lecho bacteriano: 12 phrases in 1 subject |
| Environment | 12 |