A group of creative students from Universitas Negeri Yogyakarta (UNY) has found a way to turn everyday waste into an environmental solution. Led by Biology student Jalu Bahtiar Baharudin, the team transformed discarded orange peels into a bioadsorbent capable of cleaning up wastewater from the batik industry. This innovative project is part of the 2024 Student Creativity Program (PKM) in Exact Research, aiming to address both pollution and waste management in Yogyakarta.
Yogyakarta is famous for its batik craftsmanship, but the industry also produces large amounts of wastewater filled with synthetic dyes that can harm local ecosystems. At the same time, the city’s vibrant food culture generates mountains of orange peel waste from juice stalls and culinary markets. "We saw two problems and thought—why not solve both with one solution?" said Jalu. The team discovered that orange peels, which are rich in pectin, have natural properties that can absorb harmful dye particles from water.
The students processed the orange peels into a fine powder, which they then tested in the lab. The results were impressive—the bioadsorbent successfully reduced the concentration of synthetic dyes in batik wastewater, making it safer for the environment. "It’s amazing to see something as simple as an orange peel help clean up industrial waste," Jalu added with enthusiasm. This solution not only cuts down on pollution but also gives new life to organic waste that would otherwise go to landfills.
This project is more than just a research experiment; it’s a step toward sustainable living. By turning local waste into a practical solution, the team hopes to inspire others to think creatively about environmental problems. "If we can solve two problems with one idea, imagine what else is possible," Jalu said optimistically.
UNY's support for student-led innovations like this highlights its commitment to sustainable development and environmental awareness. Through projects like these, UNY students are not just learning in the classroom—they are actively contributing to real-world solutions that benefit the community and the planet.
