| | Category | ENEV | P19 | The construction of a price reduced 3D printed turbidity meter |
| | Abstract | Turbidity is an underestimated concern when it comes to water |
| | quality. Turbidity, how much sedimentation is in water(measured in |
| | NTU), is a severe problem when it comes to killing of plants, illness in |
| | wildlife, and potential illness to humans. Build up can commonly form |
| | from a storm, construction, and natural disasters. The sedimentation in |
| | water can be from a variety of different sources: clay, silt, algae, |
| | organic material, inorganic material, and other microscopic organisms. |
| | |
| | Turbidity is most harmful due to its link of over nitrification of aquatic |
| | plants, most commonly algae. When water has high turbidity, sunlight is |
| | blocked from reaching plants under the water. This causes plants to |
| | die over time from lack of sunlight, which causes the dissolved oxygen |
| | level of the surrounding area to decrease drastically. Then the |
| | surrounding animal life and plant life die as well. Without an average |
| | amount of dissolved oxygen, surrounding life cannot support itself. |
| | Humans can also be affected by high turbidity water. Sedimentation |
| | can shield viruses from being filtered. Chlorine and other water |
| | cleaning agents cannot kill viruses that surround themselves in |
| | turbidity. According to water.nscu.edu,“If the water you are filtering is |
| | above the safe amount of turbidity(5 NTU) then the water is not suitable |
| | to drink.” This can cause an increase in microbial growth and |
| | disinfection. |
| | The engineering goal of the project is to code a fully functioning 3D |
| | turbidity meter using C++ that gives plus or minus five NTU readings. |
| | This means the meter’s goal is to be able to read samples accurately, |
| | reliably function, and run without any bugs in the code. The researcher |
| | believes he will be able to reach his engineering goal. |
| | The procedure of the project will be quite complex. The turbidity |
| | meter, electrical board, and casing will be designed and built. The code |
| | is built, then tested on the meter. If the readings are what are expected |
| | from a commercial meter, then the engineering goal is supported. This |
| | procedure happened multiple times due to code being unpredictable |
| | and new versions |
| | being made to create the best version possible. |
| | As the results show, the turbidity meter was successful. The range |
| | was about plus or minus three NTU. The code was successful after two |
| | prototype versions of it. The code also left opportunity for consumers to |
| | make their own versions and add things to the board. Arduino is an |
| | open environment and all parts used are unlocked so all individuals can |
| | make their own modifications. There is also code made for SMS |
| | messaging, that was unable to be finished in the time given, but will be |
| | worked on and tested. |
| | Bibliography | Turbidity -- Units of Measurement." Turbidity -- Units of Measurement. |
| | N.p., n.d. Web. 12 Feb. 2017. |
| | |
| | Reed, Nicholas G. "The History of Ultraviolet Germicidal Irradiation for |
| | Air Disinfection." Public Health Reports. Association of Schools of Public |
| | Health, 2010. Web. 12 Feb. 2017. |
| | |
| | "Arduino Playground - PinChangeIntExample." Arduino Playground - |