Santillan, Jobert P. <br/><br/>
Development Of Smart Rain And Used Water Harvesting System For Tup Manila/ 
Jobert P. Santillan, Angelo Miguel Tatel, Brian Jay A. Lansigan, Paul A. Pelaez and Ericka S. Cabico.-- 
 -  Technological University of the Philippines, Manila.  February 2023 
 - xi, 79 pages.  29 cm 
<br/><br/> Bachelor's thesis 
<br/><br/>College of Industrial Technology.-- 
<br/><br/>Includes bibliographic references and index. 
<br/><br/> Water is one of the most important resources for humankind. However, water scarcity in<br/>the Philippines is an increasing issue both in rural and urban areas. The root causes of this<br/>problem include a combination of factors such as population growth, urbanization,<br/>climate change, inadequate water infrastructure, poor water management practices, and<br/>pollution. This project study provides access to clean and safe water for residential and<br/>provincial areas in the Philippines. The prototype utilizes a smart rainwater harvesting<br/>system that collects rainwater in a reservoir and filters out harmful particles through a<br/>3-stage water filter with a user interface with a microcontroller unit, sensors, and control<br/>via IOT. Testing results revealed that there is a significant difference between the three<br/>water samples in terms of pH levels. Hence, the researchers categorically rejected the null<br/>hypothesis of the study. Specifically, the rain water is found to have the lowest pH level<br/>with 7.160 ± 0.3502 pH; followed by tap water with 8.433 ± 0.1886 pH; and lastly, used<br/>water with 7.890 ± 0.1197 pH; where p = .000. The results further reveal that while there<br/>is a slight deviation on the pH levels between the three water sources (i.e., SD = 0.5788,<br/>% error = .1057), the detected pH levels are still considerably at the neutral to alkalinized<br/>levels, hence, still safe to human skin when such filtered water is used for washing<br/>clothes, dishes, and other household purposes. Nonetheless, the pH level sensor used in<br/>the study has proven its accuracy in detecting variations in pH among the three water<br/>sources. Lastly, based on the ISO 25010:2011 evaluation results, the respondents<br/>perceived the prototype as “excellent” in terms of Functional Suitability (average rating<br/>of 5.00), Usability (average rating of 5.0 and 4.9), Reliability (average rating of 4.60),<br/>and Performance Efficiency (average rating of 4.80). Furthermore, the research aims to<br/>provide a reliable and cost-effective solution that reduces dependence on traditional water<br/>sources and minimizes the overall cost of water for communities. By incorporating smart<br/>technologies and efficient water management techniques, the study aligns with the United<br/>Nations Sustainable Development Goals (UN-SDGs) 6 and 11, which focus on clean<br/>water and sanitation and sustainable cities and communities. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronics Engineering Technology<br/>Sustainable Development
<br/><br/><label>LC Class. No.: </label>BTH TK 870  / S26 2023