Khai, Nguyen, Nguyen Thi Mai, Tran Thi Minh Hang, Dang Van Thanh, Pham Tien Duc, & Hoang Minh Trang. " Ultrasonic and Electrocoagulation Technologies in Wastewater Treatment and Material Circulation." VNU Journal of Science: Earth and Environmental Sciences [Online], 40.2 (2024): n. pag. Web. 22 Nov. 2024