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Advanced Software Development for Mixing Zone Modeling and Analysis

This document outlines the development of specialized software for modeling and analyzing mixing zones—specific regions in water bodies where wastewater dilution occurs. It details the tools and sensors used, including CTD (Conductivity, Temperature, Depth) sensors and DGPS for location data. The project involved creating an efficient data processing application in C++/CLI, significantly improving data handling and analysis speed. It also highlights collaboration with field studies and contributions to redesigning MixZon's intranet for better usability.

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Advanced Software Development for Mixing Zone Modeling and Analysis

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  1. Software Development for Mixing Zone Modeling and Analysis Nathan Hinkle Ronak Patangé Nina Yang

  2. What Is a Mixing Zone?

  3. What Is a Mixing Zone? • Mixing Zones (n): • Mixing zones are limited regions in rivers, lakes and coastal areas where the initial dilution (dispersion) of point-source wastewater discharges occur

  4. What Is a Mixing Zone?

  5. What Is a Mixing Zone?

  6. Who MixZon Is What the company does and where we fit in

  7. CORMIX Licensing Consulting Technical Support Mixing Zone Field Studies

  8. Tools We Worked With

  9. Sensors • CTD • Conductivity, Temperature, Depth • Used to find plumes • ADCP • Acoustic Doppler Current Profiler • Uses sonar to determine water velocities • DGPS • Differential Global Positioning System • Provides sub-meter location data Source: rdinstruments

  10. Illustration: Nathan Hinkle Differential GPS Station broadcasts offset between known coordinates and satellite coordinates. Location ±15m from satellites

  11. FLIR • Forward Looking InfraRed • Uses infrared to measure spot temperatures Source: mixzon.com

  12. FLIR FLIR system on a telescoping mast FLIR system on a tethered balloon

  13. Jet Boat Commercial Processing Software Internally developed software Photos: mixzon.com

  14. Raft Riverboat Sensors WiFi Bridge WiFi Access Point Laptop GPS Commercial processing tools Internally developed processing tools Source: mixzon.com

  15. Data Post-processing Application Development Data processing with custom applications to replace manual spreadsheet labor Nathan Hinkle

  16. CTD Data Collection: • CTD = Conductivity, Temperature, Depth sensor • Used to find plumes and determine mixing zones • Data collected as text files Photo: mixzon.com

  17. CTD Data Collection:

  18. CTD – Depth casts: • Sensor is dropped in • Downcast • …then pulled up • Upcast • We only want upcast data • We only want the data points for the maximum values

  19. CTD Processing – Previously: • Data saved as raw text • Interns and employees manually find upcast • Maximum values manually found • Slow, inefficient

  20. CTD Processing – Solution: • Designed an algorithm • Wrote an application to implement algorithm • Used C++/CLI programming language

  21. CTD Processing – Solution: • Output as smaller text files • Output to GIS shapefile • GPS coordinates make points • Attribute data attached to coordinate points • Maps can be created from these points

  22. User can select multiple files Output is shown while processing Maximum values are shown with lines and in text Status strip shows sensor information Graph is shown for each of the measurements User can select which file’s graph to look at

  23. Other Projects • Helped with field data collection

  24. Other Projects • Redesigned MixZon’s intranet site • New UI • Platform-independent, w3c-compliant code • Used PHP, HTML, CSS

  25. Skills Learned • Microsoft C++/CLI • New programming language • Mixing zone terminology • Understanding of GPS/GIS • Environmental science in the field • Experiencing a professional work situation

  26. Other Interns’ Projects • Other interns’ sections of the ppt have been redacted

  27. Thank You! Thank you to all of the people who made our internships such a great experience: • Dr. Robert Doneker – MixZon’s President • Our mentors • Adi Ramachandran • Dr. Todd Sanders • Frank Opila • Kent Thompson • Thomas “Legacy” Lovett • The ASE staff

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