1. Environmental Controls

2. Learning Objectives TLW be able to identify various types of environmental control equipment used in the process industry. TLW be able to describe how environmental control equipment operates and its limitations

3. Water & Wastewater Treatment

4. Primary Clarifier

6. Trickling Filter – Secondary Treatment

8. Water Treatment Plant

9. Activated Sludge – Secondary Treatment

11. “Bugs” – Bacteria, protozoa…..

12. Sludge Digester

14. Sludge digester

15. Sludge dewatering

16. Sludge Dryers

17. Dried sludge – mostly organic material

18. Sludge incinerator

20. Air

21. Baghouse

22. Cyclone separator

23. Electrostatic Precipitator

25. Wet Scrubber

28. Carbon Adsorber

29. Packed Tower

30. Packed tower

31. Flares

32. Incomplete combustion – too much particulate matter released

33. Waste

34. Solvent Recovery

35. Assignment Internet search to locate : –1 piece of water/wastewater treatment equipment –1 piece of air emission control equipment Describe in detail: –Specific application (if any) –Basic operation –Key components/parts –Limitations