01
Contaminated Gas Inlet
Contaminated exhaust enters through the side duct and is directed into the lower section of the scrubber tower.
Environmental Equipment
Water Spray Scrubber
The BREM Water Spray Scrubber is a wet exhaust-treatment system designed to remove suitable particulate matter, soluble gaseous contaminants and selected acid or alkaline pollutants from industrial exhaust streams. Contaminated gas comes into intensive contact with recirculated liquid through spray nozzles, packing media or other gas-liquid contact structures.
Tower configuration
Open spray / packed-bed / multi-stage
Construction material
FRP / PP / stainless steel
01 / Equipment overview
Water Spray Scrubber overview
Auxiliary wet exhaust treatment for compatible particulate, soluble gas and selected acid or alkaline pollutants. Not an automatic substitute for a dry baghouse on high dry-powder loading.
The BREM Water Spray Scrubber is a wet exhaust-treatment system designed to remove suitable particulate matter, soluble gaseous contaminants and selected acid or alkaline pollutants from industrial exhaust streams. Contaminated gas comes into intensive contact with recirculated liquid through spray nozzles, packing media or other gas-liquid contact structures. During this process, particulate can be captured by liquid droplets, while soluble or chemically reactive gaseous pollutants can be absorbed or neutralized by the selected scrubbing solution. The liquid is collected at the bottom of the tower and pumped back to the spray system for reuse. Water, a compatible alkaline solution, a compatible acidic solution or another engineered absorption liquid may be selected according to the actual exhaust chemistry.
Empty-tower gas velocity of approximately 1-6 m/s is a source reference; final design is required. Removal efficiency is not guaranteed in the source table.
02 / Operating Principle
How the Water Spray Scrubber Works
Contaminated exhaust enters the scrubber through the side inlet and flows upward through the treatment tower. Multiple spray stages generate fine water droplets that contact the gas stream and capture dust and soluble contaminants, while the packing section increases gas-liquid contact. The cleaned gas passes through the upper mist-removal section and exits through the top outlet, while the scrubbing liquid is collected in the lower sump for recirculation.
02
Spray Contact
Spray nozzles distribute water into the gas stream, where droplets contact and capture suspended dust and soluble contaminants.
03
Gas-Liquid Separation
The gas continues upward through the packing and mist-removal sections, improving contact while reducing entrained droplets before discharge.
04
Clean Gas Discharge
After treatment, the cleaned gas exits through the top duct while the scrubbing liquid returns to the lower sump for recirculation.
Multi-Stage Spray Contact
Packed Gas-Liquid Treatment
Mist Removal and Liquid Recirculation
03 / Suitable feedstock
Suitable materials
Dust-laden exhaust where wet capture is appropriate
Not automatically the primary collector for every dry battery-crushing line.
Selected water-soluble gas streams
Absorption into water or a compatible solution.
Compatible acidic gases
Using selected alkaline chemistry.
Compatible alkaline gases
Using selected acidic chemistry.
Selected odor streams
Where water or chemical absorption is effective.
Oil-containing exhaust after review
Droplet size, loading and fouling potential must be reviewed.
04 / Machine Architecture
Main scrubbing system & components
Equipment Anatomy
Water Spray Scrubber
Component Index
01
Contaminated gas inlet duct
Receives the incoming exhaust stream and directs it into the lower section of the scrubber tower.
02
Spray nozzle manifold
Distributes scrubbing liquid through multiple nozzles across the internal gas path for uniform contact.
03
Packed contact section
Provides an extended gas-liquid contact surface to improve capture of dust and soluble contaminants.
04
Mist eliminator
Removes entrained liquid droplets from the treated gas before it leaves the upper section of the tower.
05
Clean gas outlet duct
Guides the treated gas from the top of the scrubber toward the downstream exhaust system.
06
Recirculation sump
Collects scrubbing liquid in the lower tower section for reuse within the recirculation loop.
07
Recirculation pump and piping
Returns collected scrubbing liquid from the sump to the spray manifold for continuous circulation.
08
Induced-draft fan
Maintains the required exhaust flow through the scrubber and downstream ductwork.
05 / SCRUBBING ENGINEERING
Water Spray Scrubbing System
Engineering proof
Contaminated gas contacts recirculated liquid through spray nozzles and, when specified, packing media. Particulate can be captured by droplets; soluble or reactive gases can be absorbed or neutralized. A mist eliminator is used before discharge.
Tower configuration
Open spray / packed-bed / multi-stage
Construction materials
FRP / PP / stainless steel, project dependent
Scrubbing solution
Water or compatible chemical solution
Empty-tower gas velocity (source reference)
Approx. 1-6 m/s; final design required
Wastewater
Blowdown / wastewater route is part of the system
Configuration note
Empty-tower gas velocity approximately 1-6 m/s is a source reference, not a final design value. Removal efficiency requires engineering and test confirmation.
06 / Model data
Technical specifications
Wet spray scrubber
Equipment type
Open spray / packed-bed / multi-stage
Tower configuration
FRP / PP / stainless steel, project dependent
Construction material
| Parameter | Specification |
|---|---|
| Equipment type | Wet spray scrubber |
| Tower configuration | Open spray / packed-bed / multi-stage |
| Construction material | FRP / PP / stainless steel, project dependent |
| Airflow, tower diameter and height | Engineering confirmation required |
| Empty-tower gas velocity | Approx. 1-6 m/s source reference; final design required |
| Liquid circulation and liquid-to-gas ratio | Engineering confirmation required |
| Pump power, nozzle, packing and bed depth | Application dependent |
| Pressure drop and mist eliminator | Engineering confirmation required / configuration dependent |
| Scrubbing solution | Water or compatible chemical solution |
| pH control, make-up water and blowdown | Project dependent |
| Removal efficiency | Engineering and test confirmation required |
Table transcribed from content.md. Numeric airflow, diameter, height, pump power and efficiency were not present as verified values and were not guessed. The 1-6 m/s velocity is a source reference only.
07 / Applications
Where the machine sits in a recycling process
Selected battery-recycling auxiliary exhaust
Soluble gas, selected acidic exhaust, wet particulate, odor or process-gas cooling.
Chemical-processing exhaust
Compatible soluble or reactive gases.
Surface treatment, pickling, plating and metal-processing exhaust
Where wet chemistry is appropriate.
Enclosed wastewater and sludge-treatment odor control
Where water or chemical absorption is effective.
Compatible electronics and PCB-process exhaust
After composition review.
08 / Selection inputs
Information for Equipment Selection
01
Material
- Contaminant composition and concentration
- Particulate / oil-mist loading, acidic/alkaline characteristics
02
Production Requirement
- Airflow, temperature, humidity and operating hours
- Target outlet limit
- Water and chemical supply, wastewater-disposal conditions
03
Site & Utilities
- Duct diameter and available space
- Corrosion requirements, country and site voltage/frequency
09 / Equipment FAQ
Common selection questions
What pollutants can a water spray scrubber remove?
Suitable particulate, water-soluble gases and selected reactive gaseous contaminants may be treated depending on the liquid chemistry.
Can water alone treat every exhaust stream?
No. Some contaminants require chemical absorption or neutralization, while many VOCs are poorly removed by water alone.
What is the difference between a spray tower and packed-bed scrubber?
A packed-bed scrubber adds wetted packing to increase gas-liquid contact area and mass transfer.
Does a scrubber produce wastewater?
Yes. Captured contaminants accumulate in circulating liquid and may require controlled blowdown and wastewater treatment.
Can BREM guarantee removal efficiency?
Only values in the final approved engineering proposal or supported by testing should be treated as guaranteed.
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