Classification by temperature

1
Classification by temperature

• Psychrophiles
• grow at temperatures below 25C.
• Mesophiles
• grow at temperatures between 25 - 45C.
• Thermophiles
• grow at temperatures between 45 and 60C.

2
Classification by growth environment

• Suspended growth
• Activated sludge
• Attached growth
• Trickling filter
• Rotating biological contactor

3
Ten Growth Requirements

• Carbon source
• Energy source
• Terminal electron acceptor
• Macro nutrients C, N, H, O, P, K, S
• Micro nutrients Fe, Ni, Co, Mb, Zn, etc.

4
Ten Growth Requirements

• 6. Moisture
• 7. Appropriate temperature
• 8. Appropriate pH
• 9. Absence of inhibition
• 10. Mixing/contact

5
Boone wastewater treatment plant
6
Boone wastewater treatment plant
7
Boone wastewater treatment plant
8
Wastewater treatment plants
9
Wastewater treatment plants
10
Back River WWTP
11
Back River WWTP
12
Back River WWTP
13
Back River WWTP
14
Abu Dhabi WWTP
15
Abu Dhabi WWTP
16
Abu Dhabi WWTP
17
Abu Dhabi WWTP
18
Abu Dhabi WWTP
19
Budapest WWTP
20
Lake Balaton WWTP
21
Lake Balaton WWTP
22
Lake Balaton WWTP
23
Lake Balaton WWTP
24
Wastewater Treatment in Developing Countries
Community Biogas Plant in China
25
Settling Problem in Activated Sludge
26
Summary of sludge processing
27
Filter Press http//www.metlabsolutions.com/Shrive
r20Press20-20side.JPG
28
View of machine used to aerate compost placed in
windrows.
29
Overview of windrow composting operation
30
Schematic of static aerated compost pile
31
Biosolids land application
32
Placement of geomembrane liner in area-type
landfill