Relevance Of Sensor And Chemical Technology In Water Quality Monitoring (original) (raw)
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A SURVEY OF WATER QUALITY MEASUREMENT SENSORS
Water is an essential factor for sustaining life on earth andits adequate and safe supply must be accessible to all. As improved water quality is beneficial for health. Every possible effort should be made in that direction. Water quality depends on various physical and chemical standards such as color, turbidity, pH, temperature, DO (dissolved oxygen), conductivity and TDS (total dissolved solid).This paper presents a systematic survey of existing water quality measurement techniques which consist of traditional and modern approach of water quality analysis. It also includes a list of different water quality parameters and sensors used for quality analysis along with the standard quality range.
This work reports the implementation and characterization of a measurement system for water quality assessment. The measured quantities are pH, conductivity and temperature. Sensor characterization and the interdependence of the different quantities are analyzed. For pH and temperature commercial sensors were used and only signal conditioning interfaces were developed. For conductivity measurements it was designed and implemented a new conductivity cell.
Design and development of electro-chemical water quality sensor
Indian Journal of Science and Technology
It is essential to find out the concentration of impurities present in the contaminated water quantitatively to distinguish the different water samples. The principle goal of this research work is to develop and demonstrate the efficiency and capability of an electrochemical water quality monitoring sensor using cyclic voltammetric technique implemented with PIC16f877 microcontroller. To develop this advanced electro-chemical impurities sensing technique, a detailed analysis need to be carried out on different water samples. The experiment has been conducted on different water samples using the newly developed sensor and it could able to distinguish the water samples based on their corresponding voltammograms. The VIT tap water has got the highest current response of 0.04Amps for a voltage sweep of +/-2Volts indicating higher contamination level when compared to all other water samples.
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In recent days, the most important problem that our society faces is water scarcity. Due to contamination of water bodies, drinking water supply, water for agriculture and healthy fisheries has been severely impaired. Over five millions of people die annually from water borne diseases. It has also lead to contamination of marine ecosystems and decrease in crop yields. Unavailability of easy water quality detector has been a major cause which has led to all above mentioned problems. An autonomous, real time and integrated device is designed to measure physical and chemical properties of water. Designed device uses sensors to detect the quality parameters (pH, temperature, turbidity, conductivity). Sensor outputs are processed by Arduino Uno, which sends parameter values to authenticated user via GSM module. Although there are existing methods to detect quality of water, an integrated device is designed which can be used in all the three fields.
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In this paper a novel technique has been developed to determine the water quality in order to identify whether the water is drinkable or not. This approach uses an electronic circuit consisting of pH sensor, comparator (741-8 pin IC), ADC (0808-28 pin IC), micro controller (A89s51-40 pin IC), and LCD (2 lines x 16 characters) for the purpose of output display. Micro controller based program has been generated and results are observed with the help of pH sensor for different water samples.
The Development of Water Pollution Detector Using Conductivity And Turbidity Principles
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Water pollution has caused negative impacts on human health as humans depend solely on water for drinking, cooking, and cleaning. Even more worrying is that the number of polluted rivers seems to increase as time progresses. Due to no real-time monitoring device being implemented, the authorities are unaware of any given river's real-time conditions. Therefore, this research aims to control the water pollution issue by designing and developing a low-cost device that can detect water pollutants and notifies the authorities if abnormalities occur. In this work, various water pollution sources in Malaysia have been identified: biochemical oxygen demand, ammoniacal nitrogen, and suspended solids. The general performance of the proposed device is also evaluated and analyzed. Water quality data is collected by the sensors and is sent to an IoT platform called ThingSpeak through a Wi-Fi module to be visualized and displayed. When the pollution is detected, the website will alert local ...
Sensor Interface Design for Monitoring Drinking Water Quality in Water Treatment Plant
Drinking water quality is indicated by physical, chemical and biological parameters. Those parameters must not exceed a certain limits. Monitoring the parameters value from time to time was therefore needed to guarantee the quality of the drinking water. In a water treatment plant to supply continuous drinking water, some physical and chemical parameters need to be monitored in a real time. This work presents a compact sensor interface design to monitor a chloride, water hardness, pH, total dissolved solids, and temperature. The system was able to measure those parameters using a high impedance ion selective electrode for chloride, water hardness and pH together with an alternating current for total dissolved solids and DC voltage from a smart temperature sensor. In addition to the offset voltage, the voltage signal from pH electrode was amplified 6 times. The output voltage of the ISE for chloride and water hardness was amplified 16 times. The measurement results were then transmit...
Miniaturized water quality monitoring pH and conductivity sensors
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Development of cost-effective, durable and sensitive on-line water quality monitoring sensors that can be installed across the water distribution network has attracted attentions to increase the frequency of monitoring and hence reduce the risk of accidental or deliberate contaminations. This paper presents micro-sensors fabricated and implemented in a serpentine channel for the measurement of pH and conductivity, two important water quality parameters. The sensors are fabricated using hydrogel coated gold electrodes. The performance of these sensors was tested in both still (static) and flowing (dynamic) water. The serpentine channel, numerically optimized, provides a constant flow and constant outlet pressure condition for dynamic experiments. The results show that for flow rates less than 30 mL/min the values obtained in the dynamic experiments are similar to those measured in the static condition. Tests conducted for evaluating the sensors lifetime show no change in the performance even after one month.
Fabrication and Testing of a Miniaturised Water Quality Monitoring pH and Conductivity Sensors
Development of cost-effective, durable and sensitive on-line water quality monitoring sensors that can be installed across the water distribution network has attracted attentions to increase the frequency of monitoring and hence reduce the risk of accidental or deliberate contaminations. This paper presents micro-sensors fabricated and implemented in a serpentine channel for the measurement of pH and conductivity, two important water quality parameters. The sensors are fabricated using hydrogel coated gold electrodes. The performance of these sensors was tested in both still (static) and flowing (dynamic) water. The serpentine channel, numerically optimized, provides a constant flow and constant outlet pressure condition for dynamic experiments. The results show that for flow rates less than 30 mL/min the values obtained in the dynamic experiments are similar to those measured in the static condition. Tests conducted for evaluating the sensors lifetime show no change in the performance even after one month.
AQUASENSE: Sensor Based Water Quality Monitoring Device
Proceedings of the International Conference on Self Sustainable Artificial Intelligence Systems (ICSSAS 2023), 2023
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.