This project addresses complex exhaust gases containing acidic substances and organic pollutants (air volume: 12,000 m³/h) in an industrial scenario in Denmark, utilizing a dual-effect redox double-layer scrubber system to achieve ultra-high purification efficiency of 99%. Key technical features are outlined below:
1. Innovative Dual-Effect Redox Reaction System
- Dual Spray Design: The first layer sprays oxidizers (e.g., sodium hypochlorite) to decompose organic substances and neutralize acidic gases, while the second layer applies reducers (e.g., sodium sulfite) for deep removal of residual pollutants, forming a synergistic oxidation-reduction reaction chain.
- Broad Adaptability: Capable of treating mixed gases containing H₂S, VOCs, organic acids, etc., particularly suited for complex industrial emissions in chemical and pharmaceutical sectors.
2. Modular Structural Optimization & Intelligent Control
- Double-Layer Tower Design: The upper layer employs high-efficiency packing (e.g., Pall rings) to enhance gas-liquid contact, while the lower layer uses swirl plates to improve oxidizer dispersion, maintaining system resistance below 300 Pa.
- Smart Dosing System: Real-time monitoring of pH and ORP (oxidation-reduction potential) ensures stable reactions and reduces operational costs through automatic chemical concentration adjustments.
3. Performance & Environmental Benefits
- Ultra-High Purification Rate: Dual-stage spray combined with precision demisters achieves 99% removal efficiency for particulate and gaseous pollutants, meeting the EU’s strictest emission standards.
- Resource Recycling: Over 95% of spray liquid is recycled, and wastewater is neutralized for compliant discharge, minimizing chemical consumption.
4. Application Scenarios & Compatibility
- Industry Adaptability: Ideal for electroplating, semiconductor manufacturing, and food processing industries where acid mist and organic emissions coexist.
- Material Selection: The tower adopts PP/FRP composite materials, resistant to strong acids, high temperatures (≤80°C), and organic solvent corrosion.
Project Highlight: By integrating redox dual-effect reactions and intelligent control, this system overcomes the limitations of traditional scrubbers in treating complex exhaust gases, delivering a compact and efficient solution for regions with stringent environmental standards like Northern Europe.
