1.Laboratory wastewater management is based on the “Water Pollution Control Act” and other related acts. 2.Domestic Wastewater： In the daily operations of the campus, domestic wastewater generated by each building includes wastewater from everyday activities such as kitchens, restrooms, and showers. Before being discharged, this wastewater first undergoes basic treatment in the sewage treatment facilities located within each building. These treatment measures help reduce suspended solids and pollutants in the wastewater, minimizing its direct impact on the environment. After initial treatment, the wastewater is discharged into the central sewage pipeline and further transported to the public sewage treatment system of Hsinchu City, where it undergoes more advanced treatment to ensure compliance with environmental regulations and meet discharge standards. 3.Laboratory wastewater： (1)Waste solution treatment： During chemical, biological, and other experiments, laboratories often generate waste solutions containing chemical components, which can be harmful to the environment and thus require special treatment. According to the regulations stipulated in the Waste Disposal Act, these waste solutions are collected separately and are not mixed with general domestic wastewater for treatment. NTHU sends these waste solutions to certified professional organizations for processing, ensuring that these hazardous substances are safely disposed of in accordance with regulatory procedures, thereby preventing environmental pollution or threats to public health. (2)Laboratory washing wastewater： The daily operations of laboratories at NTHU generate wastewater, particularly from washing laboratory equipment and facilities. To ensure that this wastewater does not cause environmental pollution, the university has established wastewater treatment plants in both the southern and northern campuses. These treatment plants are responsible for collecting and treating wash water from various laboratories, utilizing specialized techniques to remove harmful substances from the wastewater, thereby ensuring that the water discharged into the public system meets environmental standards.