Apart from theoretical learning in class, I also attached importance to broadening my vision of environmental sectors in real-world internship. In this September, I paid a visit to Baoshan Iron & Steel, a leading integrated iron and steel company in China. I witnessed that the pollutants were discharged after treatment or recycled like that the domestic water would be converted into industrial water, and that Baosteel has not reduced production efficiency or greatly increased production cost because of terminal treatment. It made me realize that the data-based descriptions in sewage treatment, replacing the empirical management, significantly improve processing efficiency. For instance, after the dewatering of biochemical sludge and deep chemical sludge by sludge dewatering plants, the water content of the resulting cake has a significant impact on the subsequent disposal of the sludge. Applying computer systems to monitor the status of wastewater treatment operations, sludge cake moisture content can be monitored in real time, so that adjustments to dosing and dewatering equipment can be made. The constant involvement in recognising and addressing environmental issues through data analysis impelled me to pursue a further study in this domain.