Chemical · Process Engineering
Automated pH Titration & Dosing System
Intermediate 4 weeks 28-45 hours
Build an automated titration/dosing rig: a pump adds reagent while a pH probe logs the curve to find the endpoint. Core process-control skill used in water treatment and chemical plants. Safe, buildable, and job-relevant.
Major
Chemical
Focus area
Process Engineering
Total hours
28-45 hours
What you'll need
- analog pH sensor meter kit for Arduino
- 12V DC submersible water pump for Arduino
- 5V single channel relay module for Arduino
- Arduino Uno R3 ATmega328P microcontroller board
- microSD card data logging module for Arduino
- clear vinyl tubing food grade
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Steps
- Calibrate the pH sensor with buffer solutions.
- Set up the pump to add a mild reagent like vinegar or baking soda solution to a test sample.
- Program the Arduino to add small doses and log pH after each one.
- Run a full titration and plot the titration curve.
- Program automatic endpoint detection and compare it to a manual titration.
- Document the rig and results for your portfolio.
What to photograph for your portfolio
- Titration rig build
- pH titration curves
- endpoint detection
- dosing control logs
- process diagram
Resume bullet starters
Copy one, then swap in your own numbers.
Designed and built an automated ph titration & dosing system using Process control, pH measurement, closed-loop dosing
Applied Arduino and chemical engineering to implement, test, and validate the system end-to-end
Skills you'll show off
Process controlpH measurementclosed-loop dosingArduinochemical engineering