Mixing Zones (n):1. Mixing zones are

limited regions in rivers, lakes and coastal areas where the initial dilution (dispersion) of point-source wastewater discharges occur

CORMIX Licensing

Technical Support

Mixing Zone Field

Studies

Consulting

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

Location ±15m from satellites

Differential GPS

Station broadcasts offset between

known coordinates and satellite coordinates.

Illustration: Nathan Hinkle

Forward Looking InfraRed Uses infrared to measure spot

temperatures

Source: mixzon.com

FLIR system on a telescoping mast

FLIR system on a tethered balloon

Photos: mixzon.com

Internally developed software

Internally developed software

Commercial Processing Software

Commercial Processing Software

RiverboatRiverboat

Sensors

Sensors

GPSGPS

WiFi BridgeWiFi

BridgeWiFi

Access Point

WiFi Access Point

Laptop

Laptop

Internally developed processin

g tools

Internally developed processin

g tools

Source: mixzon.com

Commercial

processing tools

Commercial

processing tools

CTD = Conductivity, Temperature, Depth sensor

Used to find plumes and determine mixing zones

Data collected as text files Photo: mixzon.com

Sensor is dropped in Downcast

…then pulled up Upcast

We only want upcast data

We only want the data points for the maximum values

Data saved as raw text

Interns and employees manually find upcast

Maximum values manually found Slow, inefficient

Designed an algorithm

Wrote an application to implement algorithm

Used C++/CLI programming language

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

User can select multiple

files

User can select multiple

files

Output is shown while processing

Output is shown while processing

Graph is shown for each of the

measurements

Graph is shown for each of the

measurements

Maximum values are shown with lines and in text

Maximum values are shown with lines and in text

User can select which file’s graph

to look at

User can select which file’s graph

to look at

Status strip shows sensor informationStatus strip shows sensor information

Helped with field data collection

Redesigned MixZon’s intranet site New UI Platform-independent, w3c-compliant code Used PHP, HTML, CSS

Microsoft C++/CLI New programming language

Mixing zone terminology Understanding of GPS/GIS Environmental science in the field Experiencing a professional work

situation

Other interns’ sections of the ppt have been redacted

Thank you to all of the people who made our internships such a great experience:

Dr. Robert Doneker – MixZon’s PresidentOur mentors

Adi Ramachandran Dr. Todd Sanders Frank Opila Kent Thompson Thomas “Legacy” Lovett

The ASE staff