Virtual Booth

AquaKetaph:An IoT-Based Smart pH Monitoring System Using Ketapang Leaf Biosensors for Sustain

MUHAMMAD HAZRIQ BIN ARIS, MUHAMMAD ZAYYAD RIZQI BIN MOHD YUSRY,MUHAMMAD QHALEEF MUQARRABIN BIN MOHD HAFIZ , SAIDATUL ANEESA           NAZIRAH BINTI ROSLIZAM ,NUR AIMI SYAFIQAH BINTI BADRUL HISHAM
                                                                  MRSM ARAU

Keywords: Water filter, IoT Integration, PH Monitoring, Agriculture, Eco-friendly

INTRODUCTION

Monitoring water pH levels is crucial across various sectors, including agriculture, food processing, and chemical industries. Conventional synthetic pH indicators may pose environmental risks and increase operational costs. Ketapang (Terminalia catappa) leaves contain natural compounds with potential as eco-friendly pH indicators and antibacterial agents. This project aims to develop a sustainable pH monitoring system using ketapang leaf extract, integrated with IoT technology for automated, real-time tracking suitable for larger-scale and industrial applications.

PROBLEM STATEMENT

In many industries, continuous monitoring of water pH is essential to maintain operational efficiency and environmental compliance. However, conventional pH indicators often rely on synthetic chemicals that may be costly, non-biodegradable, and pose long-term environmental risks. There is a growing need for a more sustainable, low-impact solution that enables effective pH monitoring while minimizing ecological harm.

OBJECTIVE

This project aims to develop a natural pH indicator derived from ketapang (Indian almond) leaves, which is not only environmentally friendly but also possesses natural antibacterial properties. Additionally, the system will be integrated with IoT technology to enable automated and continuous pH monitoring.

METHODOLOGY

Extracts from ketapang leaves will be tested for their effectiveness in responding to changes in water pH. The natural ink will serve as a colorimetric indicator. An IoT-based sensor system will be developed to record and transmit pH level data to a digital display application in real time. The collected data will be analyzed to evaluate water stability and the antibacterial effects of ketapang extract in maintaining pH levels. This combination of natural materials and smart systems is expected to promote environmental sustainability and introduce a new alternative in aquarium management.

FINDINGS

Ketapang (Terminalia catappa) leaf extract showed clear color shifts from yellowish to brownish-red across pH levels 4 to 9, supporting its role as a natural pH indicator. The IoT-based sensor system successfully recorded and transmitted pH data in real time. Studies such as Lin et al. (2020) also confirm the antibacterial and antioxidant properties of ketapang extract, aligning with this project’s observations.

CONCLUSION

This project successfully demonstrated the potential of Terminalia catappa (ketapang) leaf extract as a natural, eco-friendly pH indicator. Combined with an IoT-based monitoring system, it provides a sustainable alternative for real-time water quality tracking without relying on synthetic chemicals. The integration of nature-based materials and smart technology offers promising applications beyond aquariums, especially in environmentally conscious industries.