In the heart of Chonburi Province, Thailand, a silent battle rages between the encroaching sea and the vital freshwater resources of the Sukreep Canal. This is where Pongsakon Pimpanit, a researcher from Kasetsart University’s Department of Environmental Engineering, has deployed an innovative solar-powered water quality monitoring and control system, offering a beacon of hope for sustainable water management in brackish environments.
The system, a first of its kind, integrates multi-parameter sensors that continuously monitor dissolved oxygen, salinity, temperature, and pH levels. These sensors, calibrated with meticulous precision, feed data into a microcontroller that not only records measurements but also controls pumps based on predefined thresholds. “This real-time monitoring and control system is a game-changer,” Pimpanit explains. “It allows us to adapt to changing water conditions swiftly, preventing seawater intrusion and protecting our precious water resources.”
The implications for the energy sector are significant. Traditional water management systems often rely on grid-powered infrastructure, which can be costly and unreliable, especially in remote or coastal areas. Pimpanit’s solar-powered system, however, offers a sustainable and cost-effective alternative. “By harnessing solar energy, we reduce operational costs and ensure continuous monitoring, even in areas with limited access to electricity,” Pimpanit notes.
The field deployment at the Sukreep Canal demonstrated the system’s effectiveness. Over 30 days, the solar-powered battery reached full charge within four hours, ensuring uninterrupted operation. The control algorithm successfully halted pumping when salinity exceeded 30 parts per thousand, resuming only when conditions normalized. Other parameters, including temperature, pH, and dissolved oxygen, remained within acceptable agricultural limits, safeguarding both water quality and availability.
This research, published in the journal ‘Desalination and Water Treatment’ (translated to ‘Desalination and Water Purification’ in English), opens new avenues for adaptive water management in brackish environments. As seawater intrusion threatens coastal regions worldwide, Pimpanit’s system offers a scalable solution that could be replicated in similar settings. “This is just the beginning,” Pimpanit says. “With further refinement and wider adoption, we can make a significant impact on water security and sustainability.”
The commercial potential is immense. Energy companies investing in desalination and water treatment technologies can leverage this system to enhance efficiency and reliability. Moreover, the integration of renewable energy sources aligns with global trends towards sustainability, positioning this technology at the forefront of innovative water management solutions.
As we grapple with the challenges of climate change and resource depletion, Pimpanit’s work serves as a reminder of the power of innovation and adaptability. By embracing real-time monitoring and control systems, we can safeguard our water resources and pave the way for a more sustainable future.