Fig. 1From: Advanced treatment of effluent extended aeration process using biological aerated filter (BAF) with natural media: modification in media, design and backwashing processSchematic of the BAF reactor (1. Wastewater Inlet 2. Primary settling tank 3. Wastewater inlet line 4. Reactor chamber 5. Sample valves 6. Secondary settling tank 7. Return sludge line 8. Sand filter 9. One-way valve 10. Effluent Valve 11. Backwash pump 12. Piezometer 13. Aeration pump 14. Aeration regulator)Back to article page