1. Be responsible for the overall planning, design, installation and later optimization of the company's sewage treatment system to ensure that the system complies with national and local environmental protection regulations and standards. 2. Adjust the sewage treatment process parameters in a timely manner based on production changes and water quality monitoring results to improve treatment efficiency and water quality compliance rate. 3. Be responsible for the daily operation and maintenance of sewage treatment facilities, including equipment inspection, fault detection, regular maintenance and repair work, to ensure the stable operation of the facilities.