The project was chosen as one of the six 2023 typical cases of industrial park water environment management by the Ministry of Ecology and Environment. It's the sole wastewater zero-discharge and crystallized salt resource utilization case. Adopting Jingyu Environment's self-developed, globally pioneering technology with a 4,000 m3/d treatment capacity. The processes include high-efficiency sedimentation, sand filtration, UF, resin, RO, pretreatment, impurity removal, NF salt separation, ozone catalytic oxidation, and MVR evaporation crystallization. All treated wastewater is recycled, yielding NaCl and Na?SO? meeting national industrial salt standards, realizing resource recycling and bringing extra economic benefits to the park's development.