Effective Remediation Strategy for Acidic Wastewater: Integrating Ozone Nanobubbles with Sustainable Adsorption Techniques

作     者：Ande Fudja Rafryanto Eka Dicky Andro Charlie Lina Jaya Diguna Lei Zhang Riska Rachmantyo Arie Wibowo Nurul Taufiqu Rochman Alfian Noviyanto Arramel 

作者机构：Center of Excellence Applied Physics and Chemistry Nano Center Indonesia South Tangerang 15314 Indonesia；Department of Chemical Engineering Imperial College London London SW72AZ United Kingdom Center of Excellence Applied Physics and Chemistry Nano Center Indonesia South Tangerang 15314 Indonesia Department of Renewable Energy Engineering Universitas Prasetiya Mulya Tangerang 15339 Indonesia Department of Physics National University of Singapore Singapore 117551 Singapore Materials Science and Engineering Research Group Faculty of Mechanical and Aerospace Engineering Institut Teknologi Bandung Bandung 40132 Indonesia Center of Excellence Applied Nanotechnology Nano Center Indonesia South Tangerang 15314 Indonesia；Research Center for Advanced Materials National Research and Innovation Agency South Tangerang 15314 Indonesia Center of Excellence Advanced Materials Nano Center Indonesia South Tangerang 15314 Indonesia；Department of Mechanical Engineering Faculty of Engineering Mercu Buana University Jakarta 11650 Indonesia 

出 版 物：《ACS Sustainable Resource Management》 

年 卷 期：2024年第1卷第12期

页      面：2583-2592页

摘      要：Amidst the powerful capabilities of wastewater remediation using ozone nanobubbles (ONBs), the intricate challenge of pH control remains unsolved. To date, an efficient and scalable chemical agent is highly desired to overcome the limiting factor of conventional ozone-based wastewater conversion. This study introduces a sequential system that combines ONBs with adsorption techniques utilizing an eggshell-based adsorbent. The synergistic application of ONBs and adsorption successfully achieved notable removal percentages of 95.05% for turbidity, 96.18% for color at 418 nm, and 61.33% for TDS. In comparison, the individual ONB system showed removal percentages of 94.97%, 95.93%, and 61.97%, while the adsorption alone achieved 34.02, 29.65%, and 16.93%, respectively. Additionally, the combined system effectively neutralized the solution, increasing the pH from 2.67 to 7.14, outperforming both ONBs (pH 2.67) and adsorption (pH 6.89) alone. Our work underscores the efficiency of the system, which not only provides a high removal percentage of pollutants but also secures the required pH levels. This showcases a forward leap in developing environmentally friendly and efficient water treatment technologies.