The national standard “Technical Guidelines for Integrated Membrane Treatment for Resource Recovery from High-Salinity Wastewater” (GB/T 48429-2026) has been officially released. It will take effect on May 1, 2027.

The standard was proposed and centralized by the National Technical Committee for Separation Membrane Standardization and is administered by the Standardization Administration of China. Beijing Hanqi Environmental Technology Co., Ltd. (Hanqi Environment) was one of the drafting units and took part in drafting discussions and comments.

Key points:

• Hanqi Environment is a service provider of complete process-package design for chemical wastewater treatment.

• For this standard, Hanqi shared practical references from its work in pretreatment, biological treatment, advanced treatment, dual-membrane reuse, and zero-liquid-discharge salt separation.

• The standard provides technical guidance on wastewater characterization, membrane process selection and combination, treated water control, and concentrated brine disposal for high-salinity wastewater resource recovery.

• Hanqi's participation is based on long-term R&D and engineering practice.

• Hanqi is a national high-tech enterprise and a Beijing “Specialized, Refined, Distinctive and Innovative” SME.

• The company has an R&D center in Tianjin, with laboratory and pilot-test equipment, and more than 80 invention and utility model patents.

• Its core technologies cover physical-chemical, biological, oxidation and filtration processes.

• This helped Hanqi balance technical advancement and practical feasibility in the standard discussions.

Standard drafting brings together industry expertise. Hanqi is pleased to have contributed its part and welcomes peers to jointly promote the standardization of high-salinity wastewater resource recovery.

For detailed standard provisions, please refer to the official release on the National Standards Information Public Service Platform.