Daniel Theobald Articles

  1. Math Solutions: Hydraulic Loading Calculations 11/30/2016

    This tool for operators, represented through video tutorials, offers mathematical templates to master the hydraulic loading gallons per day per square foot by evaluating the incoming flow and surface area.

  2. Math Solutions: Alkalinity Calculations 11/2/2016

    We know the importance of pH to biological wastewater treatment, but alkalinity should be considered equally important for its direct correlation to pH.

  3. Math Solutions: Mixed Liquor Volatile Suspended Solids (MLVSS) Calculations 10/4/2016

    Wastewater consultant and trainer Dan Theobald (“Wastewater Dan”) dives deeper into the activated sludge process with calculations focused on MLVSS.

  4. Math Solutions: Sludge Age Process Control Calculations 9/7/2016

    “Wastewater Dan” helps operators solve for sludge age and optimize the activated sludge process using sample problems and easy-to-use math templates to inform real-world calculations.

  5. Math Solutions: Activated Sludge Process Control Calculations 8/5/2016

    Some wastewater calculations rely on multiple math steps to arrive at the conclusion, complicating an already challenging aspect of the operator’s role. Wastewater consultant and trainer Dan Theobald helps operators overcome the intimidation of solving activated sludge process control by offering a step-by-step tutorial.

  6. Math Solutions: Pumping Calculations 7/7/2016

    Like Hans and Franz from the classic Saturday Night Live skit, we’re ready to “Pump you up!” with training and exercises to conquer operator certification exams. Your trainer, wastewater consultant Dan Theobald (“Wastewater Dan”), presents his latest round of Math Solutions.

  7. Math Solutions: Combining Concentrations 5/27/2016

    “Wastewater Dan” instructs operators on how to perform calculations for combining concentrations.

  8. Math Solutions: Efficiency And Recovery Calculations 5/4/2016

    “Wastewater Dan” helps wastewater operators understand efficiency and recovery with more easy-to-apply mathematical templates.

  9. Math Solutions: More Volume Calculations 3/8/2016

    Water Online contributor Dan Theobald provides a second round of “Math Solutions” devoted to volume calculations (see the initial installment here). Based on 24-plus years of experience in training and consultation, tutorials from “Wastewater Dan” are designed to help the operator both in the field and while sitting for certification exams.

  10. Math Solutions: Mean Cell Residence Time (MCRT) 2/16/2016

    Mean cell residence time is defined as an expression of the average time (days) that a microorganism will spend in the activated sludge process — or how long sludge is in the system. It is a critical operating parameter in the biological treatment process, with impact on various other parameters and equations.