Many sectors prioritize minimizing environmental effects for legal, ethical, and practical reasons. While, air contaminants can be dangerous, a wet air scrubber can effectively remove them.
Wet scrubbers provide a confined, effective solution for removing undesired air contaminants, making them an excellent choice for air pollution control. They are capable of removing both organic and inorganic contaminants, such as those that cause illness, deplete ozone, or alter ecosystems.
Understanding how wet scrubbers work can assist you in selecting the optimal solution, for your industry-specific requirements.
How do wet scrubbers operate?
Wet scrubbers absorb pollutants by using water or a water-based solvent.
The contaminated gas enters the wet scrubber at the bottom and rises via the packed bed, and downward-flowing solvent sprays. Pollutants are captured in the solvent droplets, and the gas is passed through a mist eliminator before leaving the scrubber, to trap any droplets.
A metal or composite container holds the liquid solvent. The contaminated gas circulates through the solution. The solvent absorbs the pollutants as it moves, and the scrubber emits clean gas.
How does the working of a wet scrubber depend on the solvent?
The nature of the solvent influences its ability to absorb pollutants. The electric charge of the solvent is crucial. A solvent with a positive, negative, or neutral charge can bond to various inorganic contaminants.
The new solvent is required to purge the impurities and replace the evaporated liquid, as the solvent absorbs contaminants. Continuous or periodic solvent flooding is possible. The effectiveness of a wet scrubber is determined by the amount of gas that comes into contact with the solvent, which necessitates the use of energy.
Low-energy scrubbers are capable of removing big particles, but high-energy scrubbers are capable of removing the smallest particles.
Types of solvent for the Wet Scrubbers
Some of the most commonly used wet scrubber solvents are:
- Water, or H2O.
- Sodium hydroxide, or NaOH.
- Calcium hydroxide, or Ca(OH)2.
- Sodium carbonate, or Na2CO3.
A mist eliminator component is present in all wet scrubbers, whether high or low energy. The contaminated droplets in the solvent are collected and removed by the mist eliminator.
Why are wet scrubbers used by every industry?
When you work in an industrial setting, your facility is likely to have several exhaust streams that come from a variety of activities. Environmental standards require that a specified quantity of toxins and pollutants be removed, from exhaust streams before they may be safely released into the environment.
Almost, every major source of air pollution in the industry has been handled by a wet scrubber application at some point. The wet scrubber is the least expensive type of air pollution control equipment, when compared to the entire cost of the pollution control system.
Controlling air pollution is a key concern for business owners in businesses that produce hazardous gases, particles, and chemicals as a by-product of manufacturing. Pollution control can be accomplished in a variety of ways.
The usage of industrial wet scrubber systems is one of the most visible methods of pollution control. These systems eliminate particulates, toxic gases, and other contaminants from exhaust gas streams.
How can we assist?
Netsol Water provides service for Wet Scrubbers that require maintenance or retrofit. Our dedicated technical service section can repair or upgrade any make, model, or kind of industrial Wet Scrubber system.