AI, IoT, and Robotics in Wastewater Treatment: Transforming Process Efficiency through Automation

Authors

  • Mengdan Lin

    Xuzhou College of Industrial and Technology, Xuzhou 221140, China

DOI:

https://doi.org/10.30564/jees.v8i2.13052
Received: 20 December 2025 | Revised: 16 January 2026 | Accepted: 20 January 2026 | Published Online: 6 February 2026

Abstract

The challenge of wastewater treatment facilities is growing as they strive to enhance compliance strength and minimize energy consumption, chemical usage, downtime, and labor requirements in the face of increasingly variable influent and climate-related disruptions. The use of recent developments in Internet of Things (IoT), artificial intelligence, and robotics enables a transition to a less reactive mode of operation and more closed-loop automation. This review leads to an understanding of the demonstrations of networked sensing and edge data architecture to enhance observability, transform heterogeneous time-series and multimodal data into monitoring, forecasting, and risk intelligent decision knowledge, and extends robotics ability to measure and intervene in hazardous, distributed, or intermittently observed plant environments. We structure the literature on a deployable sense-think-act structure between unit processes, sensing strategies, Artificial Intelligence (AI) tasks, and execution pathways based on supervisory control and robotic operations. The applications of high leverage are evaluated, such as aeration and nutrient removal optimization, chemical dosing and disinfection control, prediction of membrane fouling and cleaning schedules, solids line stabilization, and predictive maintenance of the important assets. In these areas, we highlight aspects of quality of evidence, benchmarking issues, and operational circumstances that will define persistence of reported efficiency improvements after pilots, such as sensor drift and biofouling control, constraint-based control in service of Supervisory Control and Data Acquisition (SCADA)/Programmable Logic Controller (PLC) systems, cybersecurity-by-design, and model life cycle governance. We bring it to the maturity perspective of resilient, interoperable, and conscientiously independent Wastewater Treatment Plants (WWTPs) with a research requirement of standardized datasets, hybrid digital twins, uncertainty intentional optimization, and adaptive sampling and inspection by robotized techniques.

Keywords:

Wastewater Treatment; Industrial IoT; Artificial Intelligence; Robotics; Process Optimization

References

[1] Aslam, M.A., Abbas, M.S., Mustaqeem, M., et al., 2024. Comprehensive assessment of heavy metal contamination in soil-plant systems and health risks from wastewater-irrigated vegetables. Colloids and Surfaces C: Environmental Aspects. 2, 100044.

[2] Ćetković, J., Knežević, M., Lakić, S., et al., 2022. Financial and economic investment evaluation of wastewater treatment plant. Water. 14(1), 122.

[3] Jafarinejad, S., 2020. A framework for the design of the future energy-efficient, cost-effective, reliable, resilient, and sustainable full-scale wastewater treatment plants. Current Opinion in Environmental Science and Health. 13, 91–100.

[4] Khan, M.N., Aslam, M.A., Muhsinah, A.B., et al., 2023. Heavy metals in vegetables: Screening health risks of irrigation with wastewater in peri-urban areas of Bhakkar, Pakistan. Toxics. 11(5), 460.

[5] Khan, M.N., Aslam, M.A., Zada, I., et al., 2023. Statistical analysis and health risk assessment: Vegetables irrigated with wastewater in Kirri Shamozai, Pakistan. Toxics. 11(11), 899.

[6] Tahoor, M., Pooja, Hooda, S., et al., 2024. Automated water control system in wastewater treatment plants. In: Gulati, S. (Ed.). Application of Artificial Intelligence in Wastewater Treatment. Springer: Cham, Switzerland. pp. 155–174.

[7] Kurt, S., 2024. Energetic Optimisation of Wastewater Treatment Plant and Evaluation of Greenhouse Gases [Master’s Thesis]. Politecnico di Torino: Turin, Italy.

[8] Sandle, T., 2024. Safe and effective operation of wastewater plants. Sciences. 29(2). Available from: https://44d653dc-f40d-40dd-9c8c-7db25be97bda.usrfiles.com/ugd/44d653_27ccc753e6d947609e52348a129ec044.pdf

[9] Alprol, A.E., Mansour, A.T., Ibrahim, M.E.E.-D., et al., 2024. Artificial intelligence technologies revolutionizing wastewater treatment: Current trends and future prospective. Water. 16(2), 314.

[10] Ali, G., Asiku, D., Mijwil, M.M., et al., 2025. Fusion of blockchain, IoT, artificial intelligence, and robotics for efficient waste management in smart cities. International Journal of Innovative Technology and Interdisciplinary Sciences. 8(3), 388–495.

[11] Muhammad, Z., Mahmood, A., 2025. Maintenance of wastewater treatment plants. In: Souabi, S., Anouzla, A., Yadav, S. (Eds.). Wastewater Treatment Plants: Processes, Assessment, Design and Operation. Springer: Cham, Switzerland. pp. 91–105.

[12] Tsalas, N., Golfinopoulos, S.K., Samios, S., et al., 2024. Optimization of energy consumption in a wastewater treatment plant: An overview. Energies. 17(12), 2808.

[13] Garg, M.C., Kumari, S., Agarwal, S., 2024. The integration of artificial intelligence in advanced wastewater treatment systems. In: Garg, M.C. (Ed.). The AI Cleanse: Transforming Wastewater Treatment through Artificial Intelligence: Harnessing Data-Driven Solutions. Springer: Cham, Switzerland. pp. 1–27.

[14] Moldovan, A., Nuca, I., 2019. Automation of wastewater treatment plant. In Proceedings of the 2019 International Conference on Electromechanical and Energy Systems (SIELMEN), Craiova, Romania, 9–11 October 2019; pp. 1–4.

[15] Corominas, L., Foley, J., Guest, J., et al., 2013. Life cycle assessment applied to wastewater treatment: State of the art. Water Research. 47(15), 5480–5492.

[16] Lozano Aviles, A.B., Del Cerro Velazquez, F., Llorens Pascual del Riquelme, M., 2020. Methodology for energy optimization in wastewater treatment plants. Phase III: Implementation of an integral control system for the aeration stage in the biological process of activated sludge and the membrane biological reactor. Sensors. 20(15), 4342.

[17] Oladele, O.K., 2024. Advanced wastewater treatment systems: Emerging technologies and innovations. Available from: https://www.researchgate.net/publication/385214693_Advanced_Wastewater_Treatment_Systems_Emerging_Technologies_and_Innovations (cited 16 December 2025).

[18] Watkins, S., 2011. Physico-Chemical and Microbial Factors Affecting the Operation of a Package Wastewater Treatment Plant [PhD Thesis]. University of Portsmouth: Portsmouth, UK.

[19] Rayori, D.M., 2023. Assessment of Efficiency of Wastewater Treatment Based on Physico-Chemical and Biological Parameters of Kisii Town Wastewater Treatment Plant [Master’s Thesis]. Kisii University: Kisii, Kenya.

[20] Zhang, W., Tooker, N.B., Mueller, A.V., 2020. Enabling wastewater treatment process automation: Leveraging innovations in real-time sensing, data analysis, and online controls. Environmental Science: Water Research & Technology. 6(11), 2973–2992.

[21] Gerardi, M.H., 2002. Nitrification and Denitrification in the Activated Sludge Process. John Wiley & Sons: Hoboken, NJ, USA.

[22] Ni, B.-J., Yu, H.-Q., 2012. Microbial products of activated sludge in biological wastewater treatment systems: A critical review. Critical Reviews in Environmental Science and Technology. 42(2), 187–223.

[23] Xu, Y., Wang, Z., Nairat, S., et al., 2023. Artificial intelligence-assisted prediction of effluent phosphorus in a full-scale wastewater treatment plant with missing phosphorus input and removal data. ACS ES&T Water. 4(3), 880–889.

[24] Sharma, C.P., Zhu, Z., Ronen, A., 2024. Membrane Filtration for Wastewater Treatment—Fouling Mitigation. In Wastewater Treatment and Sludge Management Systems—The Gutter-to-Good Approaches. IntechOpen: London, UK.

[25] Comber, S., Gardner, M., Ansell, L., et al., 2022. Assessing the impact of wastewater treatment works effluent on downstream water quality. Science of the Total Environment. 845, 157284.

[26] Iratni, A., Chang, N.-B., 2019. Advances in control technologies for wastewater treatment processes: Status, challenges, and perspectives. IEEE/CAA Journal of Automatica Sinica. 6(2), 337–363.

[27] Cheng, T., Dairi, A., Harrou, F., et al., 2019. Monitoring influent conditions of wastewater treatment plants by nonlinear data-based techniques. IEEE Access. 7, 108827–108837.

[28] Baquero-Rodríguez, G.A., Lara-Borrero, J.A., Nolasco, D., et al., 2018. A critical review of the factors affecting modeling oxygen transfer by fine-pore diffusers in activated sludge. Water Environment Research. 90(5), 431–441.

[29] Liu, S., Li, Y., Lu, L., et al., 2024. Efficient nitrogen removal from municipal wastewater using an integrated fixed-film activated sludge process in a novel air-lifting loop reactor: A pilot-scale demonstration. Journal of Environmental Management. 360, 121108.

[30] Parsa, Z., Dhib, R., Mehrvar, M., 2024. Dynamic modelling, process control, and monitoring of selected biological and advanced oxidation processes for wastewater treatment: A review of recent developments. Bioengineering. 11(2), 189.

[31] Zidaoui, I., 2024. Advanced Data Validation Methods for Wastewater Sensors Using Artificial Intelligence [PhD Thesis]. Université de Strasbourg: Strasbourg, France.

[32] Wang, X., Kvaal, K., Ratnaweera, H., 2017. Characterization of influent wastewater with periodic variation and snow melting effect in cold climate area. Computers & Chemical Engineering. 106, 202–211.

[33] Gehring, T., Deineko, E., Hobus, I., et al., 2021. Effect of sewage sampling frequency on determination of design parameters for municipal wastewater treatment plants. Water Science and Technology. 84(2), 284–292.

[34] Delgado, A., Briciu-Burghina, C., Regan, F., 2021. Antifouling strategies for sensors used in water monitoring: Review and future perspectives. Sensors. 21(2), 389.

[35] Paul, W.L., Rokahr, P.A., Webb, J.M., et al., 2016. Causal modelling applied to the risk assessment of a wastewater discharge. Environmental Monitoring and Assessment. 188(3), 131.

[36] Gulati, S. (Ed.), 2024. Application of Artificial Intelligence in Wastewater Treatment. Springer: Cham, Switzerland.

[37] Rane, N.L., Choudhary, S.P., Rane, J., 2023. Leading-edge artificial intelligence (AI), machine learning (ML), blockchain, and Internet of Things (IoT) technologies for enhanced wastewater treatment systems. SSRN Electronic Journal. DOI: http://dx.doi.org/10.2139/ssrn.4641557

[38] Schneider, M.Y., Carbajal, J.P., Furrer, V., et al., 2019. Beyond signal quality: The value of unmaintained pH, dissolved oxygen, and oxidation-reduction potential sensors for remote performance monitoring of on-site sequencing batch reactors. Water Research. 161, 639–651.

[39] Starr, J., 2021. Water and Wastewater Pipeline Assessment Technologies: Classification Systems, Sensors, and Results Interpretation. CRC Press: Boca Raton, FL, USA.

[40] Rehman, U., Vesvikar, M., Maere, T., et al., 2015. Effect of sensor location on controller performance in a wastewater treatment plant. Water Science and Technology. 71(5), 700–708.

[41] Kaittan, K.H., Mohammed, S.J., 2024. PLC-SCADA automation of inlet wastewater treatment processes: Design, implementation, and evaluation. Journal Européen des Systèmes Automatisés. 57(3), 789–796.

[42] Hu, W., Youfei, Z., Junying, L., et al., 2023. Remote sensing detection and resource utilisation of urban sewage sludge based on mobile edge computing. Ecological Chemistry and Engineering. 30(2), 275–282.

[43] Therrien, J.-D., 2024. Traversing the Wastewater Data Pipeline: Increasing the Utility of Data for WRRF and Public Health Decision-Making [PhD Thesis]. Université Laval: Quebec City, QC, Canada.

[44] Matheri, A.N., Mohamed, B., Ntuli, F., et al., 2022. Sustainable circularity and intelligent data-driven operations and control of the wastewater treatment plant. Physics and Chemistry of the Earth, Parts A/B/C. 126, 103152.

[45] Li, T., Winnel, M., Lin, H., et al., 2017. A reliable sewage quality abnormal event monitoring system. Water Research. 121, 248–257.

[46] Mohanty, A., Mohanty, S.K., Mohapatra, A.G., 2024. Real-time monitoring and fault detection in AI-enhanced wastewater treatment systems. In: Garg, M.C. (Ed.). The AI Cleanse: Transforming Wastewater Treatment through Artificial Intelligence: Harnessing Data-Driven Solutions. Springer: Cham, Switzerland. pp. 165–199.

[47] Khan, A., Oluwaferanmi, A., Edward, E., 2025. Automating ETL Pipelines Using Artificial Intelligence: Transforming Legacy Data Integration Systems into Intelligent Data Workflows. Available from: https://www.researchgate.net/publication/394105841_Automating_ETL_Pipelines_Using_Artificial_Intelligence_Transforming_Legacy_Data_Integration_Systems_into_Intelligent_Data_Workflows (cited 16 December 2025).

[48] Walha, A., Ghozzi, F., Gargouri, F., 2024. Data integration from traditional to big data: Main features and comparisons of ETL approaches. Journal of Supercomputing. 80(19), 26687–26725.

[49] Ma, Y., Qiao, Y., Chen, M., et al., 2025. How small is big enough? Big data-driven machine learning predictions for a full-scale wastewater treatment plant. Water Research. 274, 123041.

[50] Pisa, I., Santín, I., Vicario, J.L., et al., 2019. ANN-based soft sensor to predict effluent violations in wastewater treatment plants. Sensors. 19(6), 1280.

[51] Cong, Q., Yu, W., 2018. Integrated soft sensor with wavelet neural network and adaptive weighted fusion for water quality estimation in wastewater treatment process. Measurement. 124, 436–446.

[52] Guerra, E., Bolea, Y., Gamiz, J., et al., 2020. Design and implementation of a virtual sensor network for smart wastewater monitoring. Sensors. 20(2), 358.

[53] Mounce, S.R., Shepherd, W.J., Boxall, J.B., et al., 2021. Autonomous robotics for water and sewer networks. IAHR Hydrolink. 2, 55–62.

[54] Ibrahim, M., Al-Wadi, A., 2022. Attack graph utilization for wastewater treatment plant. Information. 13(10), 494.

[55] Stanculescu, M., Badea, C., Marinescu, I., et al., 2019. Vulnerability of SCADA and security solutions for a wastewater treatment plant. In Proceedings of the 2019 11th International Symposium on Advanced Topics in Electrical Engineering (ATEE), Bucharest, Romania, 28–30 March 2019; pp. 1–6.

[56] Agidie, S.T., 2025. Water/Wastewater Treatment Plants Must Implement a Cyber Resilience [PhD Thesis]. Marymount University: Arlington, TX, USA.

[57] Amanatidis, P., Lyratzis, E., Angelopoulos, V., et al., 2026. Intelligent water management through edge-enabled IoT, AI, and big data technologies. IoT. 7(1), 5.

[58] Zaveri, J., Li, G., Wang, Z., et al., 2025. Rethinking activated sludge modeling: A critical review of modeling strategies and the role of hybrid integration. Water Environment Research. 97(10), e70181.

[59] Duarte, M.S., Martins, G., Oliveira, P., et al., 2023. A review of computational modeling in wastewater treatment processes. ACS ES&T Water. 4(3), 784–804.

[60] Liu, Y., Ramin, P., Flores-Alsina, X., et al., 2023. Transforming data into actionable knowledge for fault detection, diagnosis and prognosis in urban wastewater systems with AI techniques: A mini-review. Process Safety and Environmental Protection. 172, 501–512.

[61] Therrien, J.-D., Nicolaï, N., Vanrolleghem, P.A., 2020. A critical review of the data pipeline: How wastewater system operation flows from data to intelligence. Water Science and Technology. 82(12), 2613–2634.

[62] Neumann, M.B., Rieckermann, J., Hug, T., et al., 2015. Adaptation in hindsight: Dynamics and drivers shaping urban wastewater systems. Journal of Environmental Management. 151, 404–415.

[63] Ocampo-Martinez, C., 2010. Model Predictive Control of Wastewater Systems. Springer: London, UK.

[64] Kovacs, D.J., Li, Z., Baetz, B.W., et al., 2022. Membrane fouling prediction and uncertainty analysis using machine learning: A wastewater treatment plant case study. Journal of Membrane Science. 660, 120817.

[65] Wang, Y., Cheng, Y., Liu, H., et al., 2023. A review on applications of artificial intelligence in wastewater treatment. Sustainability. 15(18), 13557.

[66] Zamfir, F.-S., Carbureanu, M., Mihalache, S.F., 2025. Application of machine learning models in optimizing wastewater treatment processes: A review. Applied Sciences. 15(15), 8360.

[67] Croll, H.C., Ikuma, K., Ong, S.K., et al., 2023. Reinforcement learning applied to wastewater treatment process control optimization: Approaches, challenges, and path forward. Critical Reviews in Environmental Science and Technology. 53(20), 1775–1794.

[68] Li, H., Pang, F., Xu, D., et al., 2023. New optimization framework for improvement sustainability of wastewater treatment plants. Processes. 11(11), 3156.

[69] Belia, E., Neumann, M.B., Benedetti, L., et al. (Eds.), 2021. Uncertainty in Wastewater Treatment Design and Operation. IWA Publishing: London, UK.

[70] Richards, C.E., Tzachor, A., Avin, S., et al., 2023. Rewards, risks and responsible deployment of artificial intelligence in water systems. Nature Water. 1(5), 422–432.

[71] Aparna, K.G., Swarnalatha, R., Changmai, M., 2024. Optimizing wastewater treatment plant operational efficiency through integrating machine learning predictive models and advanced control strategies. Process Safety and Environmental Protection. 188, 995–1008.

[72] Dantas, M.S., 2024. Machine Learning Algorithms for Assessment and Prediction of the Performance of Wastewater Treatment Plants [PhD Thesis]. Universidade Federal de Minas Gerais: Belo Horizonte, Brazil.

[73] Singh, H., 2025. Artificial intelligence and robotics transforming industries with intelligent automation solutions. SSRN Electronic Journal. 10(12), 330–347. DOI: https://dx.doi.org/10.2139/ssrn.5267868

[74] Kundavaram, R., Onteddu, A.R., Devarapu, K., et al., 2025. Advances in autonomous robotics for environmental cleanup and hazardous waste management. Asia Pacific Journal of Energy and Environment. 12(1), 1–16.

[75] Rahimi, M., Pon, R., Kaiser, W.J., et al., 2004. Adaptive sampling for environmental robotics. In Proceedings of the IEEE International Conference on Robotics and Automation (ICRA'04), New Orleans, LA, USA, 26 April–1 May 2004; pp. 3537–3544.

[76] Megalingam, R.K., Vadivel, S.R.R., Kotaprolu, S.S., et al., 2025. Cleaning robots: A review of sensor technologies and intelligent control strategies for cleaning. Journal of Field Robotics. 42(5), 2234–2259.

[77] Walter, C., Saenz, J., Elkmann, N., et al., 2012. Design considerations of robotic system for cleaning and inspection of large‐diameter sewers. Journal of Field Robotics. 29(1), 186–214.

[78] Hashemaba, S.K., 2021. A Robot to Measure Water Parameters in Water Distribution Systems [PhD Thesis]. Texas A&M University: College Station, TX, USA.

[79] Bae, H., Lee, M., Kim, Y., et al., 2003. Knowledge-based unmanned automation and control systems for the SBR wastewater treatment process. Artificial Life and Robotics. 7(3), 107–111.

[80] Aitken, J.M., Evans, M.H., Worley, R., et al., 2021. Simultaneous localization and mapping for inspection robots in water and sewer pipe networks: A review. IEEE Access. 9, 140173–140198.

[81] Nguyen, H.A., Ha, Q.P., 2023. Robotic autonomous systems for earthmoving equipment operating in volatile conditions and teaming capacity: A survey. Robotica. 41(2), 486–510.

[82] Wong, C., Yang, E., Yan, X.-T., et al., 2018. Autonomous robots for harsh environments: A holistic overview of current solutions and ongoing challenges. Systems Science & Control Engineering. 6(1), 213–219.

[83] Zhu, J.-J., Sima, N.Q., Lu, T., et al., 2022. Adaptive soft sensing of river flow prediction for wastewater treatment operation and risk management. Water Research. 220, 118714.

[84] Alami, R., Albu-Schäffer, A., Bicchi, A., et al., 2006. Safe and dependable physical human-robot interaction in anthropic domains: State of the art and challenges. In Proceedings of the 2006 IEEE/RSJ International Conference on Intelligent Robots and Systems, Beijing, China, 9–15 October 2006; pp. 1–16.

[85] Li, Q., Cui, X., Gao, X., et al., 2024. Intelligent dosing of sodium hypochlorite in municipal wastewater treatment plants: Experimental and modeling studies. Journal of Water Process Engineering. 64, 105662.

[86] Ruano, M.V., Ribes, J., Ruiz-Martinez, A., et al., 2024. An advanced control system for nitrogen removal and energy consumption optimization in full-scale wastewater treatment plants. Journal of Water Process Engineering. 57, 104705.

[87] Drewnowski, J., Remiszewska-Skwarek, A., Duda, S., et al., 2019. Aeration process in bioreactors as the main energy consumer in a wastewater treatment plant. Review of solutions and methods of process optimization. Processes. 7(5), 311.

[88] Jamaludin, M., Tsai, Y.-C., Lin, H.-T., et al., 2024. Modeling and control strategies for energy management in a wastewater center: A review on aeration. Energies. 17(13), 3162.

[89] Bashar, R., Gungor, K., Karthikeyan, K., et al., 2018. Cost effectiveness of phosphorus removal processes in municipal wastewater treatment. Chemosphere. 197, 280–290.

[90] Lu, X., Huang, S., Liu, H., et al., 2024. Research on intelligent chemical dosing system for phosphorus removal in wastewater treatment plants. Water. 16(11), 1623.

[91] Weiss, K.R., 1996. Liquid and solid waste treatment and disposal. In: Drbal, L.F., Boston, P.G., Westra, K.L. (Eds.). Power Plant Engineering. Springer: Boston, MA, USA. pp. 521–550.

[92] Li, X., Wang, Z., He, Y., et al., 2024. A comprehensive review of the strategies to improve anaerobic digestion: Their mechanism and digestion performance. Methane. 3(2), 227–256.

[93] Gkotsis, P.K., Banti, D.C., Peleka, E.N., et al., 2014. Fouling issues in membrane bioreactors (MBRs) for wastewater treatment: Major mechanisms, prevention and control strategies. Processes. 2(4), 795–866.

[94] Analouei, R., Taheriyoun, M., Amin, M.T., 2022. Dynamic failure risk assessment of wastewater treatment and reclamation plant: An industrial case study. Safety. 8(4), 79.

[95] Parker, L.E., Draper, J.V., 1998. Robotics applications in maintenance and repair. In: Nof, S.Y. (Ed.). Handbook of Industrial Robotics, 2nd ed. John Wiley & Sons: Hoboken, NJ, USA. pp. 1023–1036.

[96] Zhang, H., 2024. Optimization and efficiency improvement of robot-based industrial production process. International Journal of New Developments in Engineering and Society. 8(2), 92–97.

[97] Kurniawan, T.A., Mohyuddin, A., Casila, J.C.C., et al., 2024. Digitalization for sustainable wastewater treatment: A way forward for promoting the UN SDG#6 ‘Clean Water and Sanitation’ towards carbon neutrality goals. Discover Water. 4(1), 71.

[98] Madhavan, R., Tunstel, E., Messina, E. (Eds.), 2009. Performance Evaluation and Benchmarking of Intelligent Systems. Springer: New York, NY, USA.

[99] Senthil Rathi, B., Senthil Kumar, P., Sanjay, S., et al., 2025. Artificial intelligence integration in conventional wastewater treatment techniques: Techno-economic evaluation, recent progress and its future direction. International Journal of Environmental Science and Technology. 22(1–3), 633–658.

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How to Cite

Lin, M. (2026). AI, IoT, and Robotics in Wastewater Treatment: Transforming Process Efficiency through Automation. Journal of Environmental & Earth Sciences, 8(2), 105–134. https://doi.org/10.30564/jees.v8i2.13052

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Review