The "2025 Key Industrial Water Treatment Technology Innovation & Application Conference", co-hosted by the Industrial Water Treatment Committee of CIESC and China Industrial Water Information Center, was successfully held in Zhangzhou, Fujian from March 20-22. Focusing on water conservation, emission reduction, energy efficiency, and green development, the event fostered technological exchange to empower industrial transformation.

As an innovator in new energy wastewater treatment, Hanqi Environment presented the keynote report: "Application of Hanqi's Pretreatment Technology in New Energy Wastewater Management", demonstrating how our core technologies address industry pain points to support sustainable development.

Technology Highlights for New Energy Wastewater (High F⁻/Metal Ions/NH₃-N/Salinity):
Hanqi’s proprietary pretreatment achieves:
✓ F⁻ ≤ 5 mg/L
✓ Heavy metal ions ≤ 1 mg/L
through efficient removal of phosphates, fluoride, Fe, Mn, Co, Ni, and other critical contaminants.

Overcoming Operational Challenges:
Facing complex wastewater composition, extreme Cl⁻ corrosion, and severe fluctuations, Hanqi ensures system stability via:
• Modular process design
• Precision chemical dosing systems
• Advanced steel-structure anti-corrosion technology

Proven Case Performance:

• CNNC Titanium Dioxide LFP Project:
  Fe²⁺ reduced from 173 → 0.5 mg/L
  F⁻ reduced from 300 → 5 mg/L

• Co/Ni Wastewater Project:
  98% heavy metal removal rate

Core Value: Protecting Downstream Systems
By removing scaling agents (Ca/Mg/Si) and corrosive substances (F⁻) upfront:
➤ Membrane fouling risk ↓ >30% lifespan extension
➤ Evaporator scaling/corrosion ↓ >20% OPEX reduction
Example: Huayou Cobalt project maintained Fe²⁺ ≤1 mg/L, enabling:
• 15% lower per-ton-water treatment cost
• Efficient operation of dual-membrane systems

Featured Innovation: Steel-Structure Pretreatment Equipment
Deployed at CNNC Titanium Dioxide/Huayou Cobalt/Chuanheng projects, this technology offers:
✅ Multi-functional integration
✅ 50% shorter construction time
✅ 30% space savings (modular design)
✅ Superior corrosion resistance
✅ Smart controls for LFP/NMC precursor wastewater

Solving Industry-Wide Challenges:
Addressing common issues like:
Actual water quality deviations
Inadequate pretreatment
High membrane OPEX
Hanqi leverages 70+ patents (25+ inventions) and 100+ project experiences to deliver integrated solutions through:

1. Experimental validation

2. Customized process design

3. Equipment integration

Future Commitment:
Hanqi will deepen cross-industry collaborations to advance efficient, low-carbon wastewater treatment, providing robust support for carbon peaking and neutrality goals.