P16411: Pulsed-Corona Water Purification
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Integrated System Build & Test

Table of Contents

Team Vision for Integrated System Build & Test Phase

Goals for this phase:

Accomplishments:

Test Results Summary

For a complete, in-depth document showing test results from this phase, see:Test Results

Test #3 - Successive Time Pathogen Testing

In this test batch samples were tested at 50 seconds of treatment, 100 seconds of treatment, and 150 seconds of treatment to replicate a longer residence time of the water in the corona path.

Control

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50 Seconds Exposure

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100 Second Exposure

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150 Second Exposure

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Results

The green dots are E. Coli bacteria growing on the red EMB agar. Unfortunately, the colonies are too concentrated to determine whether or not the testing had a destructive effect on bacteria growth. Future culturing will be performed with more dilute samples to reduce the number of colonies growing on the plates.

Test Plan Overview

Engineering Requirements Addressed in This Phase of Testing

  1. Destroy Pathogens
  2. Deliver 1 Gallon Per Hour of Water
  3. Construct System Automotive Components
  4. Construct Reaction Chamber Using Clear Pipe
  5. Create Scalable System
  6. Provide Testing Documentation

Requirements And Testing Document

Test Result Overview

  1. Second benchmark test was not able to confirm effectiveness of the system to destroy pathogens.
    • Third batch test for pathogen destruction also did not confirm system performance
  2. Fully assembled, pump subsystem was tested with air injection, and was able to provide 1 gallon per hour flow rate.
  3. Reaction chamber has been constructed using automotive components for both electrodes and electrical subsystem is still using automotive coils to generate voltage spikes
  4. Reaction chamber has been constructed from 2" clear pipe.
  5. Pump subsystem is capable of higher and lower flow rates than 1 gallon per hour. In addition, reaction chamber design remains module and can be replaced in the future.
  6. Updated test results document showing specific test parameters and system performance has been completed.

Risk and Problem Tracking

Items were updated on the risk management worksheet:

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Notes Addressed From Last Phase Review

Plans for next phase

  1. Address leaks (both air and water) that were identified during testing
  2. Solidify test rig support to create a more stable base for the system
  3. Complete tests using complete system and hybrid discharge
  4. Analyze test results and attempt to optimize system performance
  5. Construct second reaction chamber prototype

Individual Action Items for Upcoming Phase

Travis

Brian

Julian

Aaron


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