Chinalco's industrial chain involves more than 20 non-ferrous metal elements such as aluminum, copper, lead, zinc, gallium, and germanium. Its main business covers more than 20 countries and regions around the world. Since 2008, it has been among the world's top 500 companies and is the largest single shareholder of Rio Tinto.

The company boasts world-leading production capacity in alumina, electrolytic aluminum, fine alumina, high-purity aluminum, and aluminum anodes. Its comprehensive strength in copper ranks among the top tier in China, while its comprehensive strength in lead and zinc is among the leading in the country. Its germanium and gallium metal production ranks first in China. The company owns six listed companies, including Aluminum Corporation of China (Chalco), Yunnan Copper, Chalco International, Yunnan Aluminium, Chihong Zinc & Germanium, and Yinxing Energy, forming a diversified development pattern in the non-ferrous metals sector, encompassing aluminum, copper, high-end manufacturing, engineering technology, asset management, industrial finance, environmental protection and energy conservation, intelligent technology, and overseas development.

Project deliverables:

840 m³/d of high-salt, high-hardness desulfurization and acid-base regeneration wastewater

Wastewater resource utilization and zero-discharge treatment

Vacuum evaporation recovers sulfate and high-quality NaCl concentrated brine.

TOC less than 10 mg/L, SiO2 less than 10 mg/L, ammonia nitrogen less than 1 mg/L