Keep rivers clean with an innovative water-measuring sensor
top 7
21 months ago

Measuring water cleanliness on an ongoing basis is expensive, time consuming, and inefficient. This struggle has given rise to many localized non-profit organizations that have taken up the challenge of water monitoring to preserve their way of life both now and for future generations. In most cases, this network of volunteers engages in manual water gathering and testing techniques that are (at best) slow, costly, and inefficient. One of these exemplary organizations is the Chattahoochee Riverkeeper, located in Atlanta, Georgia.

The Chattahoochee River Basin alone supports the drinking water and health of almost 5 million people, including metropolitan Atlanta. Now Ericsson and the Chattahoochee Riverkeeper want students to to join them to build a more sustainable environment for future generations.


Propose a creative idea using sensor technology to remotely measure water quality continuously in a specific location. Ericsson has the expertise to connect, secure, and transport data across a wireless network to the cloud. What they need are student ideas for devices that will cost no more than $200 to create that can gather and report relevant water quality data on a perpetual basis.

Please suggest a way to measure any combination of the following, as well as any other measures you deem important:
- Conductivity
- Temperature
- pH level
- Turbidity
- Dissolved oxygen
- Optical brighteners
- Nitrates

The above seven measures are ranked from easiest to most difficult, and preference will be shown to students who successfully tackle difficult aspects of the challenge.

DEVICE CHARACTERISTICS: Your designed device must be waterproof, RoHS compliant, environmentally-safe, and low-power. Additionally, it should be easily deployable by a single person, anchorable in the river, and durable.

Please provide a diagram showing how to assemble your device. Additionally, describe your device and its intended usefulness.

Additional Materials:
This challenge has received 24 submissions
Top 2 share $1,500 Next 5 share $500
$750.00 0 3rnhnjk 8fvzpy2l7zbbnxrscirzy0pl tcbnxi g6xw uias9qxv0bpuskq04jgh1n9u4azn49a Virginia Polytechnic Institute and State University
$750.00 M Suffolk County Community College
$100.00 0 yrlwhncm whuyvpopbvqhzcaid52pmpoycaqhzlxpolpijier9zbqvlldtl1xyj6g1fvftrzfogl Virginia Polytechnic Institute and State University
$100.00 0 3y7szplonf1c8gpt3gy zylunl9jgxpt xu zxgow6gdj8i3szxt90nxzsn6tijshgspb4pwllci Purdue University
$100.00 Square pic profile picture New York University
$100.00 N Purdue University
$100.00 Square pic 13882674 1771657733050202 6744221817467249815 n Pennsylvania State University
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