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Stream/Area:
-
Subject:
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Paper ID:
IJSREM68236
Volume:
10 |
10 |
Oct 2026
Pages:
1-5
Publication Frequency:
Monthly (12 issues per year)
License:International Journal of Scientific Research in Engineering and Management follows the Creative Commons Attribution 4.0 (CC BY 4.0) License, allowing free use and distribution with proper attribution.
Electronic & Telecommunication Engineering
JSPM Bhivrabai Sawant polytechnic wagholi pune
Electronic & Telecommunication Engineering
JSPM Bhivrabai Sawant polytechnic wagholi pune
Electronic & Telecommunication Engineering
JSPM Bhivrabai Sawant polytechnic wagholi pune
Electronic & Telecommunication Engineering
JSPM Bhivrabai Sawant polytechnic wagholi pune
Electronic & Telecommunication Engineering
JSPM Bhivrabai Sawant polytechnic wagholi pune
Reverse Osmosis (RO) filtration is globally recognized as the most effective domestic purification technology for eliminating dissolved inorganic solids, chemical toxins, and biological pathogens from groundwater and tap supplies. However, conventional consumer RO systems exhibit significant operational limitations: they demineralize water indiscriminately, frequently reducing Total Dissolved Solids (TDS) below 50 ppm, which depletes essential minerals like Calcium (Ca2+) and Magnesium (Mg2+) and violates World Health Organization (WHO) and Bureau of Indian Standards (BIS IS 10500:2012) drinking water recommendations. Furthermore, traditional purifiers generate excessive reject wastewater (65–75%) and lack real-time filter wear diagnostics or automated mineral regulation. This paper presents the design and implementation of an IoT-enabled Smart RO Water Purifier featuring an automated closed-loop TDS stabilization and multi-parameter quality monitoring system. The prototype employs a 32-bit dual-core ESP32 microcontroller interfaced with dual in-line analog TDS sensors (monitoring feed and permeate water), an analog pH probe, a YF-S201 Hall-effect turbine flow sensor, and an HC-SR04 ultrasonic water level sensor. A high-precision SG90 servo-actuated proportional needle bypass valve dynamically blends micro-filtered mineral-rich water with RO permeate to maintain product water TDS strictly within the healthy 120–160 ppm range. Automated high-velocity solenoid membrane flush cycles reduce scaling and cut wastewater by 22%. Integrated Wi-Fi telemetry streams real-time water quality parameters, volumetric usage, and filter health notifications to an interactive mobile Blynk IoT dashboard and a 16x2 I2C LCD, providing an intelligent, mineral-balanced, and resource-efficient purification platform. .
KEYWORDS
The developed IoT-Based Smart RO Water Purifier provides an autonomous, resource-conscious solution to consumer water filtration challenges. By combining dual TDS sensing with dynamic servo-actuated mineral blending, the system prevents harmful over-demineralization, maintains healthy drinking water TDS (135–150 ppm), and cuts reject wastewater by 22%, validating embedded automation in consumer health technology.
[1] World Health Organization (WHO), "Nutrients in Drinking Water," Water, Sanitation and Health Protection and the Human Environment, Geneva, Switzerland, Tech. Rep. WHO/SDE/WSH/05.09, 2005. [2] Bureau of Indian Standards (BIS), "Indian Standard Drinking Water — Specification (Second Revision)," IS 10500:2012, New Delhi, India, May 2012. [3] P. K. Sharma and R. V. Patel, "Automated Total Dissolved Solids (TDS) control system for domestic reverse osmosis purifiers," Int. J. Adv. Res. Electr. Electron. Instrum. Eng., vol. 8, no. 4, pp. 1120–1126, 2019. [4] A. K. Somani, N. K. Deshmukh, and S. B. Kulkarni, "Design and implementation of smart water quality monitoring system using IoT," IEEE Int. Conf. Commun. Signal Process. (ICCSP), Melmaruvathur, India, 2020, pp. 845–849. [5] M. V. Patil and S. N. Pawar, "Closed-loop servo-controlled mineralizer bypass valve for domestic RO systems," Int. Res. J. Eng. Technol., vol. 7, no. 5, pp. 2480–2485, 2020. [6] R. Verma, S. Tiwari, and A. Yadav, "Cloud-based IoT system for real-time water quality monitoring," Indones. J. Electr. Eng. Comput. Sci., vol. 21, no. 3, pp. 1544–1551, 2021. [7] S. S. Kulkarni, V. R. Takale, and M. G. Joshi, "Energy and water conservation in domestic RO purification systems using pulse flushing," J. Clean. Prod., vol. 245, p. 118830, 2020. [8] K. S. Babu, V. H. Reddy, and N. M. Kumar, "ESP32-based embedded platform for real-time drinking water telemetry," Int. J. Innov. Technol. Explor. Eng., vol. 9, no. 2, pp. 3125–3130, 2019. [9] T. Vignesh, S. Prakash, and R. Rajesh, "Wireless sensor network based multi-parameter drinking water assessment," Int. J. Adv. Sci. Technol., vol. 29, no. 7, pp. 1324–1330, 2020. [10] D. Nithya, T. Saranya, and P. Gayathri, "Smart residential water monitoring and automated valve cutoff system," Int. J. Electron. Commun. Syst., vol. 6, no. 8, pp. 22134–22138, 2017.
Publication Date
10/26/2026
Peer Review Type
Double-Blind Peer Review
Review Rounds: 2
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