Multiparametric System for Measuring Physicochemical Variables Associated to Water Quality Based on the Arduino Platform

Abstract

Traditionally, the estimation of water quality is realized through laboratory analysis which is time-consuming and requires specialized installations, equipment, and personnel. Nowadays, it is possible to make real-time water monitoring through electrochemical sensors, microcontrollers, and central processing units, for detecting water pollutants. This work proposes a system based on the Arduino platform for continuous measuring parameters associated with water quality as oxidation-reduction potential, pH, total dissolved solids, turbidity, temperature, electrical conductivity, and dissolved oxygen. A critical criterion for the sensor selection was its cost and availability, resulting in sensors from different companies. They were integrated without much complexity, thanks to the selected platform. In addition, a proposal is made for a signal conditioning circuit for the oxidation-reduction potential electrode. A stage of filtering is added to the pH and turbidity commercial circuits to improve their performance. Remote access to the data is done through a mini-PC with WIFI connectivity and a MySQL database. All the sensors were calibrated with reference solutions or against other commercial meters. Through the proposed system, time series having a sampling period of 20 s of all parameters were recorded for more than a week-long exhibiting circadian patterns for the same water sample, and Pearson correlation for the parameters was carried on. The results show that the system monitor successfully the seven physicochemical variables through low-cost sensors, and it has remote access capabilities.

Advances in machine learning and IoT for water quality monitoring: A comprehensive review

“… Razman et al [ 82 ] 2023 Wi-Fi Temp, pH, ORP, EC and TUR Rao et al [ 83 ] 2023 GSM Temp, pH and TUR Murugan et al [ 84 ] 2023 Wi-Fi Temp, pH and DO Li et al [ 85 ] 2022 LoRaWAN,5G Temp, humidity and pH Akhter et al [ 86 ] 2022 LoRaWAN Temp, nitrate, phosphate and pH Boccadoro et al [ 74 ] 2022 Sigfox pH, EC, oxygenation and Temp. Hartono et al [ 87 ] 2022 LoRaWAN pH and oxygen Savel et al [ 88 ] 2022 LoRaWAN pH, Temp, TUR and EC Sendra et al [ 89 ] 2022 LoRaWAN Temp, TUR and relative humidity(RH) Fonseca-Campos et al [ 90 ] 2022 Wi-Fi ORP, pH, TDS, TUR, Temp, EC and DO Abidin et al [ 91 ] 2022 Wi-Fi TDS and pH Zeng et al [ 92 ] ...…”

Kajian Awal Pemanfaatan Sistem Cerdas untuk Pemantauan Kualitas Air dalam Konteks Pembangunan Pabrik AMDK

“…Kesimpulan pada bagian ini akan memberikan gambaran awal tentang arah dan implikasi pemanfaatan sistem cerdas dalam konteks pabrik AMDK yang dapat menjadi dasar untuk pengembangan penelitian lebih lanjut. [14], [15], [16], [17], [18], [19], [20], [21], [22], [23], [24], [25], [26], [27], [28], [29], [30], [31], [32], [33], [34], [35], [36], [37], [38]…”

“…Tabel parameter ini menjadi landasan untuk analisis dan pembahasan lebih lanjut terkait penerapan sistem cerdas dalam pengembangan metode monitoring kualitas air. [3], [4], [5], [6], [7], [9], [11], [14], [21], [23], [25], [26], [27], [30], [31], [32], [33], [34], [35], [36], [37], [38]. 2 Suhu [3], [4], [5], [6], [7], [8], [9], [11], [14], [17], [18], [19], [23], [28], [30], [31], [33], [34], [36], [37], [38].…”

“…[3], [4], [5], [6], [7], [9], [11], [14], [21], [23], [25], [26], [27], [30], [31], [32], [33], [34], [35], [36], [37], [38]. 2 Suhu [3], [4], [5], [6], [7], [8], [9], [11], [14], [17], [18], [19], [23], [28], [30], [31], [33], [34], [36], [37], [38]. 3 Turbiditas (Kekeruhan)…”

A multi low-cost sensors analysis for remote and real-time water quality monitoring system

“…Therefore, methods for determining water quality parameters are the subject of a growing number of studies [3,5,15,20,27]. Current methods for measuring water quality parameters in situ rely on professional multiparametric probes to automatically measure parameters such as turbidity, dissolved oxygen, temperature, pH, and redox potential.…”