- Troubleshooting the Activated Sludge Process: A Biological Approach (Wastewater Microbiology)
- Wastewater Bacteria
- Troubleshooting the Sequencing Batch Reactor
- Nitrification and Denitrification in the Activated Sludge Process
- Settleability Problems and Loss of Solids in the Activated Sludge Process (Wastewater Microbiology Series)











