Alaybeyoğlu, İbrahim Elçin (2012) Comparing the Bactericidal Effect of Varying NH3 and Chlorinated Water solutions on the Number of colonies of Microorganisms which we interact with in our daily lives. Other thesis, TED Ankara College Foundation High School.
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Abstract
It is an inevitable event for every human being not to interact with environment. As a result of this fact, people always contact with microorganism involuntarily in their daily lives and touching a single object is quite enough to let the microorganisms move through the object and contact our skin. In that case, the common materials like cell phones, money, keyboards and door handles are the greatest sources of the harmful bacteria we met in our daily lives. Therefore, the objective of this study was to investigate whether NH3 can be used as an alternative cleaning substance instead of chlorinated water. To make a fair and realistic comparison, different concentrations (5%, 10% and 15%) of each cleaning substance is taken into consideration. In order to compare the efficiencies of NH3 and chlorinated water, amount of colony formed bacteria eliminated by different cleaning substances were counted. Keyboards are the common tools which were used as the sources of bacteria. Some statistical analysis had been done to reach results of our experiment. T- test results revealed that there wasn’t a significant mean difference between the cleaning agents in terms of their bactericidal effects. In other words, it was found that NH3 and chlorinated water are equally effective on harmful bacteria. Moreover, according to the results of ANOVA, the experiment also showed that increasing the concentration of NH3 and chlorinated water doesn’t influence their effectiveness. Although NH3 seems more effective when 10% concentrations of NH3 and chlorinated water are compared, it couldn’t be statistically justified.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | Supervisor: Hasan ALTINIŞIK, IB Notu: C |
| Uncontrolled Keywords: | alternative cleaning substance |
| Subjects: | Q Science > QH Natural history > QH301 Biology |
| Depositing User: | Kamil Çömlekçi |
| Date Deposited: | 09 Jul 2012 12:06 |
| Last Modified: | 12 Apr 2019 08:38 |
| URI: | http://tedprints.tedankara.k12.tr/id/eprint/232 |
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