Beijing Hanqi Environment Technology Co., Ltd. has obtained a national invention patent for "Treatment System and Method for Naphthenic Acid Alkali Residue Wastewater" (Patent No.: 202211541099.7).

Key Innovations & Benefits:

1. Resource Recovery

   • Enables naphthenic acid reclamation

   • Recovered acid meets Grade 1 standards (SH/T 0530-92 petroleum industry specification)

   • Generates significant economic value for refineries

2. Environmental Protection

   • Mitigates impact of alkali residue wastewater on downstream treatment systems

   • Delivers dual economic-environmental benefits

   • Advances industrial wastewater management toward resource recovery and low-carbon solutions

R&D Excellence at Tianjin Center:
Hanqi’s R&D operations:
• Prioritize market-driven solutions
• Target client pain points
• Validate technologies through:

• Strategic planning

• Market analysis

• Engineering applications
  • Provide theoretical/data support for 120+ global projects

Proven Technical Capabilities:
23 invention patents across core technologies:

• Sedimentation

• Biological treatment

• Advanced oxidation

• Oil removal

• Filtration

Corporate Commitment:
Adhering to our long-term philosophy, we continue developing energy-saving solutions that create sustainable value for clients.