DANIEL THEOBALD ARTICLES

  • Math Solutions: Flow Velocity Calculations
    Math Solutions: Flow Velocity Calculations

    Flow velocity is defined in fluid dynamics as the specific distance (feet, yards, or miles) fluids such as water and wastewater travel in an exact period of time including seconds, minutes, or hours. In managing your water/wastewater, applying this tool can be very useful.

  • Math Solutions: Helpful Math Hints And Calculations
    Math Solutions: Helpful Math Hints And Calculations

    Mathematical calculations can be a challenge for even the most skilled water and wastewater operator. The formulas for chemical dosing, conversion, filtration, pounds, velocity, volume, and other everyday problems vary, of course, but there are a scant number of basic ground rules that can help make sure your math solution is legitimate regardless of the calculation you’re performing.

  • Math Solutions: Certification Examination Prep Calculations
    Math Solutions: Certification Examination Prep Calculations

    While it is natural to be worried about the unknown, being apprehensive can lead to less achievement. Conversely, knowing what to expect more likely leads to relaxation and accomplishment — and can ultimately help you pass the exam.

  • Math Solutions: Energy Dollar Savings Calculations
    Math Solutions: Energy Dollar Savings Calculations

    Energy efficiency, as defined in wastewater treatment, is using less energy to provide the same service. It can be expressed as energy dollar savings by replacing older, inefficient motors.

  • Math Solutions: Hydraulic Loading Calculations
    Math Solutions: Hydraulic Loading Calculations

    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.

  • Math Solutions: Alkalinity Calculations
    Math Solutions: Alkalinity Calculations

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

  • Math Solutions: Mixed Liquor Volatile Suspended Solids (MLVSS) Calculations
    Math Solutions: Mixed Liquor Volatile Suspended Solids (MLVSS) Calculations

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

  • Math Solutions: Sludge Age Process Control Calculations
    Math Solutions: Sludge Age Process Control Calculations

    “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.

  • Math Solutions: Activated Sludge Process Control Calculations
    Math Solutions: Activated Sludge Process Control Calculations

    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.

  • Math Solutions: Pumping Calculations
    Math Solutions: Pumping Calculations

    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.

  • Math Solutions: Combining Concentrations
    Math Solutions: Combining Concentrations

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

  • Math Solutions: Efficiency And Recovery Calculations
    Math Solutions: Efficiency And Recovery Calculations

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

  • Math Solutions: More Volume Calculations
    Math Solutions: More Volume Calculations

    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.

  • Math Solutions: Mean Cell Residence Time (MCRT)
    Math Solutions: Mean Cell Residence Time (MCRT)

    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.

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Daniel Theobald

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Daniel L. Theobald, “Wastewater Dan” The WastewaterWizard Principal at TheWastewaterWizard.com