This project, an essential safeguard one, aims to recycle industrial sewage and boost the zero-carbon industrial chain's quality construction and development. It's a domestic leading sewage zero-discharge project in PV wastewater treatment, featuring the largest investment, highest recycled water standard, and greatest salt separation. The Concentrated Water Evaporation-Crystallization Project of Mengsu Economic Dev. Zone's Water Recycle Plant, built by Jingyu Environment, has a 100,000-ton-per-day design scale. Via pretreatment, membrane concentration & salt separation, freeze crystallization, and evaporation crystallization, the effluent meets cooling and washing water standards, is recycled in the park, and yields NaCl and Na?SO? salts. It's highly significant for comprehensively advancing the Yellow River Basin's ecological protection and quality development in Inner Mongolia and fortifying the ecological security barrier in the north.