1. Department of Mechanical Engineering, Universitas Sumatera Utara, Medan 20155, Indonesia
2. Department of Mechanical Engineering, Universitas Muhammadiyah Sumatera Utara, Medan 20238, Indonesia
3. Department of Mechanical Engineering, Politeknik Negeri Medan, Medan 20155, Indonesia
4. Center for Technology in Water and Wastewater, School of Civil and Environmental Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, NSW 2007, Australia