All Stories

  1. Water and Wastewater Decentralization at Urban District-Level to Enhance Resiliency and Sustainability

    Article • October 2025, Water Environment Federation

    Oliver J Schraa

  2. Modeling nitrous oxide emission from full-scale hybrid membrane aerated biofilm reactors (MABR)

    Article • Water Research, April 2025, Elsevier

    Oliver J Schraa

  3. Using water and wastewater decentralization to enhance the resilience and sustainability of cities

    Article • Nature Water, September 2024, Springer Science + Business Media

    Oliver J Schraa

  4. Model‐based investigation of the chemical phosphorus removal potential of the peroxide regenerated iron‐sulfide control technology

    Article • Water Environment Research, June 2022, Wiley

    Oliver J Schraa

  5. The third route: A techno-economic evaluation of extreme water and wastewater decentralization

    Article • Water Research, June 2022, Elsevier

    Oliver J Schraa

  6. A framework for model-based assessment of resilience in water resource recovery facilities against power outage

    Article • Water Research, September 2021, Elsevier

    Oliver J Schraa

  7. Modelling anaerobic, aerobic and partial nitritation-anammox granular sludge reactors - A review

    Article • Water Research, February 2019, Elsevier

    Oliver J Schraa

  8. Ammonia-based aeration control with optimal SRT control: improved performance and lower energy consumption

    Article • Water Science & Technology Water Supply, January 2019, IWA Publishing

    Oliver J Schraa

  9. The future of WRRF modelling – outlook and challenges

    Article • Water Science & Technology Water Supply, December 2018, IWA Publishing

    Oliver J Schraa

  10. Dynamic air supply models add realism to the evaluation of control strategies in water resource recovery facilities

    Article • Water Science & Technology Water Supply, August 2018, IWA Publishing

    Oliver J Schraa

  11. Dynamic Modeling of Membrane-Aerated Biofilm Reactors

    Article • Proceedings of the Water Environment Federation, January 2018, Water Environment Federation

    Oliver J Schraa

  12. Aeration System Modelling

    Article • Water Science & Technology Water Supply, October 2016, IWA Publishing

    Oliver J Schraa

  13. Modelling all aspects of aeration: air delivery, bubble formation and transport, and oxygen transfer

    Article • Water Science & Technology Water Supply, September 2016, IWA Publishing

    Oliver J Schraa

  14. Coupling SRT Control with Aeration Control Strategies

    Article • Proceedings of the Water Environment Federation, January 2016, Water Environment Federation

    Oliver J Schraa

  15. Comparison of Advanced Fine-Bubble Aeration Control Concepts with Respect to Energy Efficiency and Robustness

    Article • Proceedings of the Water Environment Federation, January 2016, Water Environment Federation

    Oliver J Schraa

  16. A Comprehensive Aeration System Model for WRRF Design and Control

    Article • Proceedings of the Water Environment Federation, January 2015, Water Environment Federation

    Oliver J Schraa

  17. A novel integrated approach for designing, testing and implementing WRRF process control solutions

    Article • Proceedings of the Water Environment Federation, January 2015, Water Environment Federation

    Oliver J Schraa

  18. A Highly Efficient Methanol Dosage Controller for Multi-stage WRRFs

    Article • Proceedings of the Water Environment Federation, January 2015, Water Environment Federation

    Oliver J Schraa

  19. Maximum Allowable Temperature for Nitrification in Industrial Wastewater Treatment Plant – Model Based Evaluation

    Article • Proceedings of the Water Environment Federation, January 2013, Water Environment Federation

    Oliver J Schraa

  20. Extending the Modeling of High Purity Oxygen Wastewater Treatment Processes: Transition from Closed to Open Basin Operations – A Full Scale Case Study

    Article • Proceedings of the Water Environment Federation, January 2012, Water Environment Federation

    Oliver J Schraa

  21. SimuWorks™: A Cost-Effective Model-Based Wastewater Treatment Plant “Flight Simulator” and Training Tool for WWTP Operators

    Article • Proceedings of the Water Environment Federation, January 2012, Water Environment Federation

    Oliver J Schraa

  22. Wastewater as a resource: a unique approach to achieving energy sustainability

    Article • Water Science & Technology Water Supply, May 2011, IWA Publishing

    Oliver J Schraa

  23. Resource Recovery and Municipal Wastewater Treatment: Modeling of a New Approach

    Article • Proceedings of the Water Environment Federation, January 2011, Water Environment Federation

    Oliver J Schraa

  24. Activated Anaerobic Digestion with a Membrane Filtration System

    Article • Proceedings of the Water Environment Federation, January 2011, Water Environment Federation

    Oliver J Schraa

  25. Process Optimization of a Petroleum Refinery Wastewater Treatment Facility Using Process Modeling and Site Specific Biokinetic Constants

    Article • Proceedings of the Water Environment Federation, January 2011, Water Environment Federation

    Oliver J Schraa

  26. Examining the Phenomenon of Self Regulation of Biofilm Density Under Dynamic Conditions Using a Biofilm Model

    Article • Proceedings of the Water Environment Federation, January 2011, Water Environment Federation

    Oliver J Schraa

  27. Treating municipal wastewater with the goal of resource recovery

    Article • Water Science & Technology Water Supply, January 2011, IWA Publishing

    Oliver J Schraa

  28. Model Calibration for a Post-Denitrification Moving Bed Biofilm Reactor

    Article • Proceedings of the Water Environment Federation, January 2010, Water Environment Federation

    Oliver J Schraa

  29. A Dynamic Model of Membrane Bioreactor Systems for Wastewater Treatment

    Article • Proceedings of the Water Environment Federation, January 2010, Water Environment Federation

    Oliver J Schraa

  30. Modeling pH Dynamics in the Nutrient Removal Activated Sludge Process

    Article • Proceedings of the Water Environment Federation, January 2010, Water Environment Federation

    Oliver J Schraa

  31. Development and Calibration of Fate Models for Micro-Constituents in Wastewater

    Article • Proceedings of the Water Environment Federation, January 2009, Water Environment Federation

    Oliver J Schraa

  32. Partitioning of Brominated Flame Retardants in Wastewater Treatment: Model Calibration and Loading Projections

    Article • Proceedings of the Water Environment Federation, January 2009, Water Environment Federation

    Oliver J Schraa

  33. Resource Recovery and Municipal Wastewater Treatment: A New Approach Combining Biological and Physical-Chemical Processes

    Article • Proceedings of the Water Environment Federation, January 2009, Water Environment Federation

    Oliver J Schraa

  34. Estimating Air Emissions from an Industrial Cooling Water Reservoir after an Accidental Material Release

    Article • Proceedings of the Water Environment Federation, January 2009, Water Environment Federation

    Oliver J Schraa

  35. Continuous Backwash Filters: An Attractive Technology for Phosphorus Removal and Recovery, and Nitrate Reduction

    Article • Proceedings of the Water Environment Federation, January 2009, Water Environment Federation

    Oliver J Schraa

  36. Modeling the Fate of Estrogenic Hormones in Municipal Wastewater Treatment

    Article • Proceedings of the Water Environment Federation, January 2008, Water Environment Federation

    Oliver J Schraa

  37. Promoting On-Site Use of Wastewater Process Models with Customized Simulators

    Article • Proceedings of the Water Environment Federation, January 2008, Water Environment Federation

    Oliver J Schraa

  38. A New Activated Sludge Model for Industrial Wastewater Treatment Facilities

    Article • Proceedings of the Water Environment Federation, October 2007, Water Environment Federation

    Oliver J Schraa

  39. Modelling Bioaccumulation of Metals to Toxic Levels in an Industrial Activated Sludge System

    Article • Proceedings of the Water Environment Federation, October 2007, Water Environment Federation

    Oliver J Schraa

  40. Fault detection for control of wastewater treatment plants

    Article • Water Science & Technology Water Supply, February 2006, IWA Publishing

    Oliver J Schraa

  41. Modeling of an IFAS Process with Fungal Biomass Treating Pharmaceutical Wastewater

    Article • Proceedings of the Water Environment Federation, January 2006, Water Environment Federation

    Oliver J Schraa

  42. Modeling Greenhouse Gas Emissions from Activated Sludge Processes

    Article • Proceedings of the Water Environment Federation, January 2006, Water Environment Federation

    Oliver J Schraa

  43. Dynamic Simulation of Volatile Compound Transient Events at WWTPS

    Article • Proceedings of the Water Environment Federation, January 2006, Water Environment Federation

    Oliver J Schraa

  44. Model-Based Optimum Design of Sequencing Batch Reactors for COD and Nitrogen Removal from a Slaughterhouse Wastewater

    Article • Proceedings of the Water Environment Federation, January 2006, Water Environment Federation

    Oliver J Schraa

  45. Anaerobic digestion: a new model for plant-wide wastewater treatment process modelling

    Article • Water Science & Technology Water Supply, November 2005, IWA Publishing

    Oliver J Schraa

  46. WASTEWATER TREATMENT PLANT UPGRADING: THE INCORPORATION OF PROCESS MODELING FROM CONCEPTUAL DESIGN TO IMPLEMENTATION AND OPERATION

    Article • Proceedings of the Water Environment Federation, January 2005, Water Environment Federation

    Oliver J Schraa

  47. SELECTING THE MOST COST-EFFECTIVE HIGH-RATE CSO TREATMENT TECHNOLOGY

    Article • Proceedings of the Water Environment Federation, January 2005, Water Environment Federation

    Oliver J Schraa

  48. MODELING INDUSTRIAL ACTIVATED SLUDGE SYSTEMS: HOW TO OVERCOME COMMON PITFALLS

    Article • Proceedings of the Water Environment Federation, January 2004, Water Environment Federation

    Oliver J Schraa

  49. INTEGRATING ANAEROBIC DIGESTION INTO PLANT-WIDE WASTEWATER TREATMENT MODELING

    Article • Proceedings of the Water Environment Federation, January 2004, Water Environment Federation

    Oliver J Schraa

  50. THE MODELING OF A LARGE INDUSTRIAL WASTEWATER TREATMENT PLANT

    Article • Proceedings of the Water Environment Federation, January 2004, Water Environment Federation

    Oliver J Schraa

  51. A DYNAMIC, MECHANISTIC MODEL FOR MEMBRANE BIOREACTOR (MBR) TREATMENT PROCESSES, USING IWA ACTIVATED SLUDGE BIOLOGICAL MODELS

    Article • Proceedings of the Water Environment Federation, January 2004, Water Environment Federation

    Oliver J Schraa

  52. THE USE OF PROCESS MODELING TO INVESTIGATE THE PERFORMANCE OF A LARGE INDUSTRIAL WASTEWATER TREATMENT PLANT

    Article • Proceedings of the Water Environment Federation, January 2004, Water Environment Federation

    Oliver J Schraa

  53. A DYNAMIC, MECHANISTIC MODEL FOR MEMBRANE BIOREACTOR (MBR) TREATMENT PROCESSES, USING IWA ACTIVATED SLUDGE BIOLOGICAL MODELS.

    Article • Proceedings of the Water Environment Federation, January 2004, Water Environment Federation

    Oliver J Schraa

  54. The numerical solution of bilinear data reconciliation problems using unconstrained optimization methods

    Article • Computers & Chemical Engineering, August 1998, Elsevier

    Oliver J Schraa

  55. The numerical solution of bilinear data reconciliation problems using unconstrained optimization methods

    Article • Computers & Chemical Engineering, January 1996, Elsevier

    Oliver J Schraa