1. Department of Chemical Engineering, Faculty of Industrial Technology and System Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
2. Department of Mechanical Engineering, Faculty of Engineering, Universitas Muhammadiyah Riau, Pekanbaru, Indonesia
3. Department of Physics, Faculty of Mathematics, Natural Science, and Health, Universitas Muhammadiyah Riau, Pekanbaru, Indonesia
4. Environmental Engineering Department, Faculty of Engineering, Universitas Andalas, Padang, Indonesia