What is The Best Solution for Lab Fume Hood Exhaust.Gas ?
SUCLAB PH VALUE FUME HOOD WITH WET SCRUBBER !!!!
SUCLAB Perchloric Acid (Polypropylene ) Lab Fume Hood with Wet Scrubber for ph value of JIANGXI HUAZHIJUN TECHNOLOGY CO., LTD is The Best Solution for Lab Fume Hood Exhaust.Gas . It is a special type of fume hood primarily used to treat irritating, corrosive, or toxic gases generated during experiments that are water-soluble or can chemically react with water. It washes and neutralizes exhaust gases through a water flow, rather than relying solely on physical filtration or direct emission.
SUCLAB Lab Fume Hood with Wet Scrubber Working Principle:
Exhaust Gas Generation: Experiments conducted inside the fume hood generate harmful gases (such as hydrogen chloride, ammonia, sulfur dioxide, etc.).
Exhaust Gas Capture:As with all fume hoods, an internal fan creates negative pressure at the operating port, drawing harmful gases into the fume hood's exhaust system.
Spray Scrubbing: Harmful gases are directed to a specialized scrubbing device. An acid and alkali resistant water pump sprays water or a specific chemical absorbent from nozzles on the top or side, forming a dense water curtain or mist.
Gas-Liquid Contact and Purification:
Physical Dissolution: For gases readily soluble in water (such as ammonia and hydrogen chloride), gas molecules dissolve directly in water droplets.
Chemical Reaction: For acidic gases (such as HCl, SO₂), alkaline substances (such as sodium hydroxide) can be added to the circulating water to neutralize them, producing a harmless salt solution. Conversely, for alkaline gases (such as NH₃), acid can be added.
Gas-Liquid Separation: Clean air (or gas containing only trace amounts of harmless substances) after washing passes through a baffle plate to remove entrained moisture, and is then discharged externally through fans and pipes.
Wastewater Treatment: Washing water that has absorbed harmful substances flows into a storage tank. This wastewater must be collected and treated as hazardous waste and cannot be directly discharged into the sewer system.
Main Treated Substances: Water spray fume hoods are specifically designed for the following types of chemicals:
Inorganic Acid Mist/Vapor:
Hydrochloric Acid - Extremely soluble in water.
Nitric Acid - Easily soluble in water and reacts.
Sulfuric Acid Mist - Can be absorbed by water.
Hydrofluoric Acid - Special Note: Although HF can be absorbed by water, its treatment requires special corrosion-resistant materials (such as PVC and PP), and the waste liquid requires extremely careful handling.
Alkaline Gases:
Ammonia - Extremely soluble in water.
Other Soluble Gases:
Formaldehyde - Easily soluble in water.
Chlorine - Effectively absorbed by alkaline aqueous solutions (such as sodium hydroxide).
Advantages and Disadvantages.
Design Solution :
SUCLAB Lab Fume Hood with Wet Scrubber Special Advantages:
Top efficient treatment of specific substances: For the above-mentioned soluble/reactive gases, its removal efficiency is far higher than the direct emission of ordinary fume hoods or the adsorption of clean-type fume hoods.
Active chemical neutralization: By adding neutralizing agents, highly toxic gases can be converted into low-toxicity or non-toxic compounds, achieving harmless treatment and being more environmentally friendly.
Suitable for high-concentration waste gases: Capable of handling large quantities or high concentrations of irritating gases generated in a short period of time, which is difficult for clean-type fume hoods (filters are easily saturated).
Preventing Pipe Corrosion: By removing corrosive gases (such as HCl) at the front end, it protects downstream fans and exhaust ducts, extending equipment life.
Disadvantages and Challenges: Requires External Piping: Unlike cleanroom fume hoods, which are mobile, it must be permanently installed and connected to the outdoors.
Generation of Hazardous Waste Liquid: This is one of the biggest challenges. The treated wastewater contains high concentrations of chemicals, and collection, storage, and disposal are costly and complex.
High Energy Consumption: Requires continuous operation of pumps and fans, resulting in higher energy consumption than conventional ducted fume hoods.
Complex Maintenance: Requires regular checks for nozzle blockage, pump malfunction, pH levels of the circulating fluid (if a neutralizing agent is used), and cleaning of the storage tank.
Equipment Corrosion Risk: Even if the main body is made of corrosion-resistant materials (such as PP polypropylene or PVC polyvinyl chloride), long-term exposure to corrosive environments can still damage components such as pumps and valves.
High Initial Investment: Due to its complex system (cabinet, spray tower, pump, fan, piping), the cost is typically higher than that of a conventional fume hood of the same size. IV. Difference from Water-Washed Fume Hoods/Exhaust Hoods
refers to a fume hood with a water curtain or screen installed at the top or rear. Its functions are:
Cooling: Cooling the hot air generated during high-temperature experiments (such as digestion with aqua regia).
Primary Scrubbing: Capturing some dust and soluble gases.
Fire Prevention: Isolating some air.
However, it is usually not a complete, efficient exhaust gas purification system; its scrubbing efficiency is far lower than that of a specially designed water-spray fume hood. Wastewater from water-washed fume hoods may be directly discharged, while water-spray fume hoods are a closed-loop, highly efficient exhaust gas treatment terminal.
Water-spray fume hoods are a highly targeted and efficient exhaust gas treatment device.
Working Principle :
SUCLAB Lab Fume Hood with Wet Scrubber Scope of Operation:
Strong acid digestion experiments: Such as digesting samples with hydrochloric acid, nitric acid, or hydrofluoric acid.
Large-scale ammonia use: Such as ammonia distillation and concentration operations.
Chemical synthesis or decomposition reactions that produce large amounts of irritating, soluble gases.
Perchloric Acid Lab Fume Hood with Wet Scrubber: Special hoods equipped with a stainless steel or PVC duct and properly timed water wash down system. The wash down system must be used following each use of the acid hood. Using perchloric acid in a general lab fume hood may cause the acid vapors to settle onto the ductwork and create explosive perchlorate crystals. Serious injury or fatality may result to hood users or maintenance staff if the acid crystals are exposed to vibration and detonate.
Polypropylene (Strong Acid Resistant) PP Lab Fume Hood with Wet Scrubber : Dilute acids may be used at room temperature in most fume hoods, but if you are performing acid digestion, heating, or working with concentrated acids such as: HF, Aqua Regia, Nitric Acid, Piranha Solutions, etc., acid resistant hood and ductwork is required. Strong acids are corrosive to the duct work found in general lab fume hoods. Fume hoods constructed from polypropylene material are long-lasting and designed to resist harsh chemicals for years.
Technical Parameters :
What is The Best Solution for Lab Fume Hood Exhaust.Gas ?
SUCLAB PH VALUE FUME HOOD WITH WET SCRUBBER !!!!
SUCLAB Perchloric Acid (Polypropylene ) Lab Fume Hood with Wet Scrubber for ph value of JIANGXI HUAZHIJUN TECHNOLOGY CO., LTD is The Best Solution for Lab Fume Hood Exhaust.Gas . It is a special type of fume hood primarily used to treat irritating, corrosive, or toxic gases generated during experiments that are water-soluble or can chemically react with water. It washes and neutralizes exhaust gases through a water flow, rather than relying solely on physical filtration or direct emission.
SUCLAB Lab Fume Hood with Wet Scrubber Working Principle:
Exhaust Gas Generation: Experiments conducted inside the fume hood generate harmful gases (such as hydrogen chloride, ammonia, sulfur dioxide, etc.).
Exhaust Gas Capture:As with all fume hoods, an internal fan creates negative pressure at the operating port, drawing harmful gases into the fume hood's exhaust system.
Spray Scrubbing: Harmful gases are directed to a specialized scrubbing device. An acid and alkali resistant water pump sprays water or a specific chemical absorbent from nozzles on the top or side, forming a dense water curtain or mist.
Gas-Liquid Contact and Purification:
Physical Dissolution: For gases readily soluble in water (such as ammonia and hydrogen chloride), gas molecules dissolve directly in water droplets.
Chemical Reaction: For acidic gases (such as HCl, SO₂), alkaline substances (such as sodium hydroxide) can be added to the circulating water to neutralize them, producing a harmless salt solution. Conversely, for alkaline gases (such as NH₃), acid can be added.
Gas-Liquid Separation: Clean air (or gas containing only trace amounts of harmless substances) after washing passes through a baffle plate to remove entrained moisture, and is then discharged externally through fans and pipes.
Wastewater Treatment: Washing water that has absorbed harmful substances flows into a storage tank. This wastewater must be collected and treated as hazardous waste and cannot be directly discharged into the sewer system.
Main Treated Substances: Water spray fume hoods are specifically designed for the following types of chemicals:
Inorganic Acid Mist/Vapor:
Hydrochloric Acid - Extremely soluble in water.
Nitric Acid - Easily soluble in water and reacts.
Sulfuric Acid Mist - Can be absorbed by water.
Hydrofluoric Acid - Special Note: Although HF can be absorbed by water, its treatment requires special corrosion-resistant materials (such as PVC and PP), and the waste liquid requires extremely careful handling.
Alkaline Gases:
Ammonia - Extremely soluble in water.
Other Soluble Gases:
Formaldehyde - Easily soluble in water.
Chlorine - Effectively absorbed by alkaline aqueous solutions (such as sodium hydroxide).
Advantages and Disadvantages.
Design Solution :
SUCLAB Lab Fume Hood with Wet Scrubber Special Advantages:
Top efficient treatment of specific substances: For the above-mentioned soluble/reactive gases, its removal efficiency is far higher than the direct emission of ordinary fume hoods or the adsorption of clean-type fume hoods.
Active chemical neutralization: By adding neutralizing agents, highly toxic gases can be converted into low-toxicity or non-toxic compounds, achieving harmless treatment and being more environmentally friendly.
Suitable for high-concentration waste gases: Capable of handling large quantities or high concentrations of irritating gases generated in a short period of time, which is difficult for clean-type fume hoods (filters are easily saturated).
Preventing Pipe Corrosion: By removing corrosive gases (such as HCl) at the front end, it protects downstream fans and exhaust ducts, extending equipment life.
Disadvantages and Challenges: Requires External Piping: Unlike cleanroom fume hoods, which are mobile, it must be permanently installed and connected to the outdoors.
Generation of Hazardous Waste Liquid: This is one of the biggest challenges. The treated wastewater contains high concentrations of chemicals, and collection, storage, and disposal are costly and complex.
High Energy Consumption: Requires continuous operation of pumps and fans, resulting in higher energy consumption than conventional ducted fume hoods.
Complex Maintenance: Requires regular checks for nozzle blockage, pump malfunction, pH levels of the circulating fluid (if a neutralizing agent is used), and cleaning of the storage tank.
Equipment Corrosion Risk: Even if the main body is made of corrosion-resistant materials (such as PP polypropylene or PVC polyvinyl chloride), long-term exposure to corrosive environments can still damage components such as pumps and valves.
High Initial Investment: Due to its complex system (cabinet, spray tower, pump, fan, piping), the cost is typically higher than that of a conventional fume hood of the same size. IV. Difference from Water-Washed Fume Hoods/Exhaust Hoods
refers to a fume hood with a water curtain or screen installed at the top or rear. Its functions are:
Cooling: Cooling the hot air generated during high-temperature experiments (such as digestion with aqua regia).
Primary Scrubbing: Capturing some dust and soluble gases.
Fire Prevention: Isolating some air.
However, it is usually not a complete, efficient exhaust gas purification system; its scrubbing efficiency is far lower than that of a specially designed water-spray fume hood. Wastewater from water-washed fume hoods may be directly discharged, while water-spray fume hoods are a closed-loop, highly efficient exhaust gas treatment terminal.
Water-spray fume hoods are a highly targeted and efficient exhaust gas treatment device.
Working Principle :
SUCLAB Lab Fume Hood with Wet Scrubber Scope of Operation:
Strong acid digestion experiments: Such as digesting samples with hydrochloric acid, nitric acid, or hydrofluoric acid.
Large-scale ammonia use: Such as ammonia distillation and concentration operations.
Chemical synthesis or decomposition reactions that produce large amounts of irritating, soluble gases.
Perchloric Acid Lab Fume Hood with Wet Scrubber: Special hoods equipped with a stainless steel or PVC duct and properly timed water wash down system. The wash down system must be used following each use of the acid hood. Using perchloric acid in a general lab fume hood may cause the acid vapors to settle onto the ductwork and create explosive perchlorate crystals. Serious injury or fatality may result to hood users or maintenance staff if the acid crystals are exposed to vibration and detonate.
Polypropylene (Strong Acid Resistant) PP Lab Fume Hood with Wet Scrubber : Dilute acids may be used at room temperature in most fume hoods, but if you are performing acid digestion, heating, or working with concentrated acids such as: HF, Aqua Regia, Nitric Acid, Piranha Solutions, etc., acid resistant hood and ductwork is required. Strong acids are corrosive to the duct work found in general lab fume hoods. Fume hoods constructed from polypropylene material are long-lasting and designed to resist harsh chemicals for years.
Technical Parameters :
