Periodic Monitoring of Rivers Using Portable Sensor System

Das, Nilendu; Kumar, Vaibhav; Tewari, Ankit; Agnihotri, Ashwani Kumar; Shivam,; Gaur, Shishir; Ohri, Anurag

doi:10.1109/smart46866.2019.9117555

Cited by 4 publications

(1 citation statement)

References 9 publications

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“…In some cases, sensors are evaluated in strictly controlled laboratory settings (e.g., [51,95,96]), where environmental conditions are tightly regulated to provide consistent and reliable test conditions. In other papers, sensors are tested in more complex and dynamic environments, such as aquaculture tanks (e.g., [49,57,59,[63][64][65]85,[97][98][99]), rivers and lakes (e.g., [14,15,47,50,52,78,81,[100][101][102][103][104][105]). These natural environments can present challenges that are not present in controlled laboratory environments, such as temperature variations, water currents, and the presence of contaminants.…”

Section: The Sensors Analyzed What Environments?mentioning

confidence: 99%

Low-Cost Water Quality Sensors for IoT: A Systematic Review

Camargo

Spanhol

Slongo

et al. 2023

Sensors

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In many countries, water quality monitoring is limited due to the high cost of logistics and professional equipment such as multiparametric probes. However, low-cost sensors integrated with the Internet of Things can enable real-time environmental monitoring networks, providing valuable water quality information to the public. To facilitate the widespread adoption of these sensors, it is crucial to identify which sensors can accurately measure key water quality parameters, their manufacturers, and their reliability in different environments. Although there is an increasing body of work utilizing low-cost water quality sensors, many questions remain unanswered. To address this issue, a systematic literature review was conducted to determine which low-cost sensors are being used for remote water quality monitoring. The results show that there are three primary vendors for the sensors used in the selected papers. Most sensors range in price from US$6.9 to US$169.00 but can cost up to US$500.00. While many papers suggest that low-cost sensors are suitable for water quality monitoring, few compare low-cost sensors to reference devices. Therefore, further research is necessary to determine the reliability and accuracy of low-cost sensors compared to professional devices.

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Section: The Sensors Analyzed What Environments?mentioning

confidence: 99%

Low-Cost Water Quality Sensors for IoT: A Systematic Review

Camargo

Spanhol

Slongo

et al. 2023

Sensors

View full text Add to dashboard Cite

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Analysis of the Spatio-Temporal Variation of the Thermal Pattern of River Ganges in Proximity to Varanasi, India

Das

Bhattacharjee

Choubey

et al. 2022

J Indian Soc Remote Sens

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The temperature of a river is a fundamental aspect of its water quality and has a bearing on its ecosystem to a greater extent. Therefore, in systematic planning for optimal stream monitoring programs involving the determination of location at monitoring stations, understanding this crucial thermal parameter is much desired. This would help to give an integrated scenario regarding physical, chemical, and biological processes occurring in the river ecosystem. Water quality parameters of the river such as dissolved oxygen, pH, salinity get affected due to change in river thermal patterns. In this study, the Landsat-8 TIR sensor was used to study spatial and temporal variations of river temperature. Thermal bands of 23 cloud-free Landsat-8 images from June 2013 to November 2020 were processed to prepare thermal maps of a stretch of river Ganges at Varanasi, India. The work has been validated by in-situ temperature measurement with a portable thermal sensor having high accuracy (± 0.1 °C). A good correlation ( R 2 = 0.927 and RMSE = 0.956) was observed between the sensor's estimated temperature and the in-situ temperature. The results exemplify that water surface temperature at confluence points was relatively higher due to the incoming effluents than the mid-river temperature. The ‘confluence point 3’ has the least relative temperature variation. The relative temperature variation has been more prominent for the month of February in comparison to June and November. Owing to the time series data availability and worldwide coverage of the Landsat-8 satellite, the present work provides a promising strategy for studying the thermal patterns in other rivers.

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Design and Development of a Website-based Palm Oil Industry Liquid Waste Monitoring System

Rahayu

Wijaya

Safrianti

et al. 2021

J. Phys.: Conf. Ser.

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Liquid waste produced by palm oil mills needs to be monitored regularly to avoid pollution and negative impacts of waste before being discharged into rivers. Monitoring of pollution levels of palm oil effluent is carried out in wastewater disposal ponds. In this study, a website-based prototype of a palm oil effluent monitoring system was designed and built. This prototype monitors the level of pollution of liquid waste in the liquid waste disposal pond. Monitoring the level of pollution of this liquid waste takes a sample of waste at one of the palm oil mills located in Kuantan Singingi, Riau. This research uses a pH sensor and a water turbidity sensor. Provision of calcium oxide is carried out if the level of acidity of the liquid waste and the level of turbidity of the liquid waste is in poor condition. The measurement results are then displayed directly on the website that was built. From the results of field tests, it was found that the liquid waste is very acidic, so it is necessary to add calcium oxide to reduce the acid content.

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Periodic Monitoring of Rivers Using Portable Sensor System

Cited by 4 publications

References 9 publications

Low-Cost Water Quality Sensors for IoT: A Systematic Review

Low-Cost Water Quality Sensors for IoT: A Systematic Review

Analysis of the Spatio-Temporal Variation of the Thermal Pattern of River Ganges in Proximity to Varanasi, India

Design and Development of a Website-based Palm Oil Industry Liquid Waste Monitoring System

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