ENVIRONMENT
- ciseal baictéarach Tagairt an Ghníomhaireacht Eorpach Comhshaoil (GEC)
- ga
- bacterial bed
- en
- Sainmhíniú 1.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. Tagairt 1.LEE;