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Product Description
The removal rate of the whole exhaust gas purification device for VOCs can reach 95%, and the removal rate of odor concentration can reach 99.4%.
Organic gas into the equipped with special spectrum efficient UV lamp UV efficient photolysis oxidation module cavity after UV light source spectral range is 200 nm to 450 nm, 365 nm as the center, high-energy UV ultraviolet light and ozone oxidation reaction of organic gases are simultaneously decomposition, peculiar smell gas material degradation into low molecular compounds, water and carbon dioxide. Failure to have
The organic waste gas effectively removed is then absorbed by the rear activated carbon adsorption device. According to the monitoring situation of the project operation, the removal efficiency of the whole exhaust gas purification device for VOCs can reach 95%, and the removal rate of odor concentration can reach 99.4%.
Under the dual pressure of VOCs emission limits (<50mg/m³) and odor nuisance complaints in the chemical, pharmaceutical and other industries, the UV photolysis + activated carbon adsorption combined process has become the preferred solution for small and medium-sized air volume exhaust gas treatment with its 95% purification efficiency and 24-hour continuous operation capability. This article deeply analyzes the core parameters of the system, the logic of equipment selection and typical industry application scenarios, and provides enterprises with a full process guide from exhaust gas detection to standard acceptance.
1. Technical principles and energy efficiency breakthroughs: synergistic effects of spectral science and adsorption kinetics
This process achieves targeted removal of pollutants through high-energy UV photolysis oxidation and deep adsorption of activated carbon:
Core technical parameters of UV photolysis module
Precise spectral control:
Adopting 185nm/254nm dual-wavelength UV lamps (amalgam technology), the ozone yield is increased by 40%;
The 365nm band accounts for >65%, ensuring the maximum bond breaking efficiency of VOCs such as benzene and esters.
Reaction chamber optimization:
304 stainless steel mirror polishing, UV reflectivity>92%;
Gas residence time ≥2.5 seconds
2. Activated carbon adsorption system upgrade plan:
Carbon layer structure design:
Four-tower rotary adsorption (switching cycle 15 minutes), carbon layer thickness 1.2m;
Use coconut shell activated carbon (CTC≥100%, benzene adsorption value ≥35%).
Intelligent regeneration control:
Built-in temperature and humidity sensor, nitrogen protection automatically starts when carbon bed temperature>50ºC;
Desorption waste gas is returned to the photolysis module for secondary treatment to avoid secondary pollution
Technology innovation and operation and maintenance guarantee system
3. Intelligent control system upgrade:
UV lamp life monitoring: predict lamp attenuation through current fluctuation analysis (early warning accuracy>90%);
Activated carbon saturation AI algorithm: dynamically adjust the desorption cycle according to pressure difference and temperature changes.
Application of new materials:
Nano TiO2 photocatalytic coating: Under 365nm ultraviolet excitation, the toluene degradation efficiency is increased by 22%;
Graphene modified activated carbon: The specific surface area is 2100m²/g, and the benzene adsorption capacity is increased by 3 times.
Modular rapid installation technology:
Containerized purification unit: integrated fan, photolysis, adsorption unit, on-site installation cycle <3 days;
Mobile emergency treatment vehicle: processing capacity 2000m³/h, suitable for sudden exhaust gas leakage events.
Conclusion: Decision logic and risk avoidance of technology selection
The ultraviolet photolysis + activated carbon combination process shows the best cost-effectiveness in the concentration range of 200-500mg/m³. Enterprises need to focus on the following:
Necessity of pre-treatment: When the dust content of the exhaust gas is >50mg/m³, a three-stage filter (G4+F7+HEPA) must be installed;
Ozone leakage prevention and control: Set up an exhaust ozone decomposer (catalytic type) to ensure that the emission concentration is <0.1mg/m³;
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QINGDAO SANZHUJI
Specializing in the production of sand casting machinery, including green sand casting production line, furan resin sand casting production line, lost foam casting production line, coated sand steel sand buried casting production line, the company has a history of 14 years since its establishment.
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Address:North of G204 National Road, Poli Town, West Coast New Area, Qingdao, China
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