AQUASENSE: Sensor based Water Quality Monitoring Device S. Hema Priyadarshini Department of Medical Electronics Engineering Dayananda Sagar College of Engineering Bangalore, India priyadhema@gmail.com Vinay K. V. Department of Medical Electronics Engineering Dayananda Sagar College of Engineering Bangalore, India vinaykv3002@gmail.com Poojitha S. Department of Medical Electronics Engineering Dayananda Sagar College of Engineering Bangalore, India phancy3002@gmail.com Ashrita Dikshit V A Department of Medical Electronics Engineering Dayananda Sagar College of Engineering Bangalore, India ashd9503@gmail.com Rakshit Preran B. Department of Medical Electronics Engineering Dayananda Sagar College of Engineering Bangalore, India rakshitpreranb267@gmail.com Abstract— Water is an essential part of living organisms. The Industrialization has caused immense contamination of potable water. Hence water quality monitors play an important role in detection of contamination in these water bodies. There are many water quality monitors available in the market for the detection of level of contamination. This research study discusses about the effective usage of Arduino UNO board, sensors to measure temperature, TDS and pH to measure the water quality. Hence, the main aim of this research study is to find the TDS, temperature and pH of the water samples collected from various places in Bangalore City, Karnataka, and conclude regarding the quality of the water whether it is portable to use for drinking and domestic purpose. Keywords—Arduino, contamination, temperature, TDS, pH, water quality Fig. 1. Contaminated water sample Water can be tested for the above classification using various parameters, namely, I. INTRODUCTION Water is called the universal solvent due to its versatile nature. It covers 70% of the Earth surface in which only 1% of the water available is consumable. Water can dissolve many salts and substances than any other liquids. The chemical composition of water is Hydrogen and Oxygen. Water exists in many forms, such as in liquids, solids as in ice and snow and vapor on Earth. Due to its versatile nature, it is prone to contamination easily. The contamination in water is caused due to rapid Industrialization and human wastes. This has led to several issues like water scarcity and poses as a danger to the aquatic life as well. To encounter these issues many attempts have been made to discover new ways to differentiate the contaminated water from the pure forms. The contaminated water can cause various health related problems in all living beings on the planet. Water can be classified as potable, palatable, contaminated and infected water. Potable water is the pure form of water that can be consumed, has a pleasant taste and used in day-to-day activities. Palatable water has the presence of chemicals that may or may not pose any threats to the living organisms. Contaminated water or also called as polluted water contains unwanted physical, chemical and radiological substances making it unfit for drinking or domestic purposes. The infected water contains microbial and pathogenic organisms that cause infections in living organisms in contact.  Physical parameters that include turbidity, electrical conductivity, temperature, taste, odour, total dissolved solids, and other factors.  Chemical parameters include pH, alkalinity, acidity, hardness, dissolved oxygen and many other factors.  Biological parameters include algae, bacteria, viruses, and other microbes in the water bodies. To identify the level of contamination in water bodies, various methods of testing water samples have been incorporated in factories and water supply boards. Among them the most effective device used is “water quality monitors” that can measure the contamination level in water bodies either considering physical, chemical or biological factors. The most effective results are obtained by measuring TDS, temperature and pH [1,2]. TDS or Total Dissolved Solid is the measure of number of particles dissolved in the given volume of solution [3]. TDS is calculated by the electrical conductivity of the given solution. Electrical conductivity is the ability of solution to conduct electricity. The ions of the solids in the water bodies actively participate in conduction of electricity hence can be calculated and considered for the TDS value. The temperature plays an important role in calculation of TDS of the water sample since for every 1°C increment there is a rise in electrical conductivity by 2-4% that in turn changes the value of the TDS of a solution [4]. Temperature Proceedings of the International Conference on Self Sustainable Artificial Intelligence Systems (ICSSAS 2023) IEEE Xplore Part Number: CFP22DN7-ART; ISBN: 979-8-3503-0085-7 979-8-3503-0085-7/23/$31.00 ©2023 IEEE 1786 2023 International Conference on Self Sustainable Artificial Intelligence Systems (ICSSAS) | 979-8-3503-0085-7/23/$31.00 ©2023 IEEE | DOI: 10.1109/ICSSAS57918.2023.10331664 Authorized licensed use limited to: Dayananda Sagar University. Downloaded on July 15,2024 at 10:28:45 UTC from IEEE Xplore. Restrictions apply.