| 1 | Aerobic Wastewater Treatment Processes (Suspended Growth Systems, Activated Sludge Processes) | 1,2 |
| 2 | Aerobic Wastewater Treatment Processes (Suspended Growth Systems, Activated Sludge Processes) | 1,2 |
| 3 | Modifications of Activated Sludge Processes, Aeration in Activated Sludge processes, | 1,2 |
| 4 | Mechanically Aerated Lagoons, Oxidation Ditches, Stabilization (Oxidation) Ponds | 1,2 |
| 5 | Fixed-Film Wastewater Treatment Systems | 1,2 |
| 6 | Trickling Filters and Rotating Biodisc Contactors | 1,2 |
| 7 | Fluidized Bed Bioreactors | 1,2 |
| 8 | Anaerobic Wastewater Treatment Systems, Suspended Growth Systems, Standard and High rate Anaerobic Contact Processes, Upflow Sludge Blanket Reactors. | 1,2 |
| 9 | Anaerobic Fixed -Film Systems, Anaerobic Filters, Fludized Beds and Anaerobic Filters | 1,2 |
| 10 | Nitrogen Removal from Wastewater (Nitrification, Denitrification) | 1,2 |
| 11 | Phosphate Removal from Wastewaters | 1,2 |
| 12 | Anaerobic and Aerobic Sulfur Removal from Wastewater | 2 |
| 13 | Solid Waste Bio-Process Operations, | 2 |
| 14 | Sample Applications at Environmental Biotechnolgy. | 1,3 |