1. Wastewater Treatment CE 326 Principles of Environmental Engineering Prof. Tim Ellis Spring 2008

2. Terminal Electron Acceptor (TEA) Examples: CE 326 Principles of Environmental Engineering, Copyright © 2008 Tim Ellis, Iowa State University

3. Classification by temperature _________philes grow at temperatures below 25°C. _________philes grow at temperatures between 25 - 45°C. _________philes grow at temperatures between 45 and 60°C.

4. Classification by growth environment ________ growth ________ sludge _________d growth T_________ filter R_________ biological contactor

5. Ten Growth Requirements 1. C_________ source 2. E________ source 3. Terminal e_________ acceptor 4. M____ nutrients: C, N, H, O, P, K, S 5. M____ nutrients: Fe, Ni, Co, Mb, Zn, etc.

6. 6.M_______ 7.Appropriate t__________ 8.Appropriate p___ 9.Absence of i___________ 10.Mixing/c__________ Ten Growth Requirements

7. Boone wastewater treatment plant

9. Wastewater treatment plants

11. Back River WWTP

15. Abu Dhabi WWTP

20. Budapest WWTP

21. Lake Balaton WWTP

25. Wastewater Treatment in Developing Countries Community Biogas Plant in China

26. Shouguang City WWTP, PRC

35. Settling Problem in Activated Sludge

36. Summary of sludge processing

37. Filter Press http://www.metlabsolutions.com/Shriver%20Press%20-%20side.JPG

38. View of machine used to aerate compost placed in windrows.

39. Overview of windrow composting operation

40. Schematic of static aerated compost pile

41. Biosolids land application

42. Placement of geomembrane liner in area-type landfill