Wastewater Treatment CE 326 Principles of Environmental Engineering

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

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

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

Classification by growth environment n ____ growth n n ____ sludge _____d growth T_____ filter n R_____ biological contactor n

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

Ten Growth Requirements 6. M_______ 7. Appropriate t_____ 8. Appropriate p___ 9. Absence of i______ 10. Mixing/c_____

Boone wastewater treatment plant

Boone wastewater treatment plant

Wastewater treatment plants

Wastewater treatment plants

Back River WWTP

Back River WWTP

Back River WWTP

Back River WWTP

Abu Dhabi WWTP

Abu Dhabi WWTP

Abu Dhabi WWTP

Abu Dhabi WWTP

Abu Dhabi WWTP

Budapest WWTP

Lake Balaton WWTP

Lake Balaton WWTP

Lake Balaton WWTP

Lake Balaton WWTP

Wastewater Treatment in Developing Countries Community Biogas Plant in China

Shouguang City WWTP, PRC

Shouguang City WWTP, PRC

Shouguang City WWTP, PRC

Shouguang City WWTP, PRC

Shouguang City WWTP, PRC

Shouguang City WWTP, PRC

Shouguang City WWTP, PRC

Shouguang City WWTP, PRC

Shouguang City WWTP, PRC

Settling Problem in Activated Sludge

Summary of sludge processing

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

View of machine used to aerate compost placed in windrows.

Overview of windrow composting operation

Schematic of static aerated compost pile

Biosolids land application

Placement of geomembrane liner in area-type landfill