NAPCEN

Villianur, Pondicherry

A portable wet scrubber a device used to remove pollutants, particulate matter from industrial processes, emissions, or confined spaces. Unlike larger industrial wet scrubbers that are fixed in place, portable wet scrubbers are designed to be mobile and can be easily moved to different locations as needed.

Function of Portable wet scrubber accessories:

1.Fan or Blower: A portable wet scrubber typically includes a fan or blower that helps draw contaminated air into the scrubber for treatment. The fan creates airflow within the system.

2.Inlet/Intake: The contaminated air is introduced into the scrubber through an inlet or intake port. This is the point where the air enters the system for treatment.

3.Scrubbing Chamber: The heart of the scrubber is the scrubbing chamber. In this chamber, the contaminated air is exposed to a liquid (usually water or another suitable solvent) that captures and neutralizes the pollutants. The liquid can be in the form of a spray or a wetted surface.

4.Packing Material or Scrubbing Media: Within the scrubbing chamber, there is often a packing material or scrubbing media. This material increases the surface area for contact between the contaminated air and the liquid, enhancing the scrubbing efficiency.

5.Mist Eliminator: After the contaminated air has passed through the scrubbing chamber, a mist eliminator or demister is used to remove any liquid droplets from the cleaned air stream before it is discharged. This ensures that the treated air is as dry as possible.

6.Liquid Recirculation System: Portable wet scrubbers typically include a system for recirculating and reusing the scrubbing liquid. This can include a pump and a reservoir to maintain a constant supply of scrubbing liquid.

7.Outlet/Exhaust: The Cleaned air is discharged through an outlet or exhaust port once it has passed through the scrubber and mist eliminator. The treated air should meet regulatory emissions standards.

8.Controls: Portable wet scrubbers come with control systems that allow operators to adjust the flow rate of the scrubbing liquid and other parameters to optimize the scrubbing efficiency.

A nitric acid scrubber is a piece of equipment used in industrial settings to remove or neutralize nitric acid (HNO3) from gas streams, particularly in air pollution
control and safety applications. Nitric acid is a corrosive and highly reactive chemical, and its fumes can be harmful to both the environment and human health. Therefore, its essential to control and treat emissions containing nitric acid in various industrial processes.
A nitric acid scrubber working process:
1.Gas Inlet: The gas stream containing nitric acid enters the scrubber system. This gas stream might be exhaust from processes like metal pickling, chemical manufacturing, or laboratory work.
2.Scrubbing Solution: Inside the scrubber, there is a solution, often referred to as a scrubbing solution or absorbent. This solution is typically a base, such as sodium hydroxide (Na OH) or calcium hydroxide (Ca (OH)2), which can neutralize nitric acid.
3.Contact Zone: The gas stream is passed through the scrubbing solution. In this contact zone, the nitric acid reacts with the base in the solution to form a less harmful compound, typically a nitrate salt.
For example Nitric acid (HNO3) reacts with sodium hydroxide (NaOH) to form sodium nitrate (NaNO3):
HNO3 + Na OH -> NaNO3 + H2O
4.Neutralization: The nitric acid is neutralized as it reacts with the base, effectively removing it from the gas stream.
5.Exit and Disposal: The treated gas stream exits the scrubber, and the resulting nitrate salt is usually dissolved in the scrubbing solution. This solution can then be processed further or disposed of safely, depending on regulatory requirements.

An Acid Fume Scrubber, also known as an acid gas scrubber or simply a fume scrubber, is a pollution control device used to remove acidic gases (such as sulfur dioxide, hydrogen chloride, and hydrogen fluoride) and other hazardous chemical fumes from industrial exhaust streams. These systems are crucial in mitigating air pollution and protecting the environment and human health, especially in industries where corrosive or toxic gases are produced.
An acid fume scrubber working process:
1.Inlet: The polluted air, laden with acidic fumes, is drawn into the scrubber from an industrial process through an inlet duct.
2.Contact with Scrubbing Solution: Inside the scrubber, the polluted air comes into contact with a liquid scrubbing solution. This solution is often water-based and may contain various chemicals or additives depending on the specific pollutants to be removed. The scrubbing solution can neutralize or chemically react with the acidic gases.
3.Absorption and Reaction: As the acidic fumes come into contact with the scrubbing solution, chemical reactions occur, leading to the removal of the acid gases from the air. For example, in the case of sulfur dioxide (SO2) removal, the reaction might produce sulfuric acid (H2SO4), which is then dissolved in the liquid solution.
4.Separation: The cleaned air, now largely free of acid gases and other pollutants, exits the scrubber through an outlet duct and is released into the atmosphere or further treated if necessary.
5.Treatment of Scrubbing Solution: The liquid scrubbing solution, now containing absorbed pollutants, needs to be treated or regenerated for continuous use. Depending on the specific system, this can involve chemical reactions, pH adjustment, or additional treatment steps to recover or neutralize the absorbed pollutants.

An Ammonia Scrubber is a specialized air pollution control device used to remove ammonia (NH3) gas from industrial processes, air emissions, or wastewater. Ammonia is a common pollutant in various industries, and scrubbers are employed to prevent its release into the atmosphere or water bodies, as high ammonia concentrations can have detrimental effects on the environment and human health.

An ammonia scrubber working process:

1.Inlet: Ammonia-laden air or gas enters the ammonia scrubber from an industrial process or emission source.

2.Scrubbing Solution: Inside the scrubber, there is a liquid solution, often water-based, which may contain chemicals or reagents designed to react with and capture ammonia. The choice of scrubbing solution depends on the specific application and the concentration of ammonia to be removed.

3.Gas-Liquid Contact: The incoming gas is brought into contact with the scrubbing solution. Ammonia gas molecules dissolve into the liquid phase due to chemical reactions between the ammonia and the scrubbing solution. These reactions may involve acid-base reactions or other chemical processes, depending on the specific scrubber design.

4.Separation: After the ammonia gas has been absorbed by the scrubbing solution, the clean air exits the scrubber, while the ammonia-rich liquid is collected at the bottom of the scrubber vessel.

5.Recovery or Treatment: In some cases, the collected ammonia-rich liquid can be treated or further processed to recover ammonia for reuse or safely dispose of it, depending on the specific application.

Ammonia scrubbers are commonly used in various applications, including:

Agriculture: To control ammonia emissions from animal husbandry operations, such as poultry and swine farms

Chemical Manufacturing: To capture and control ammonia emissions from chemical production processes.

Wastewater Treatment: To remove ammonia from wastewater streams to meet regulatory discharge limits.

Industrial Facilities: To control ammonia emissions from various industrial processes, such as refrigeration, petrochemical, and food processing.

Air Pollution Control: To reduce ammonia emissions from industrial stacks and exhausts to comply with air quality regulations.

A Venturi Scrubber, also known as a Venturi dust collector or Venturi wet scrubber, is a type of air pollution control device used to remove particulate matter and other pollutants from industrial exhaust gases. It operates on the principle of utilizing a Venturi throat to create a high-velocity jet of water or other liquid, which in turn creates a pressure drop. This pressure drop causes the gases containing pollutants to be drawn into the scrubber, where they come into contact with the liquid stream.

A Venturi scrubber working process:

1.Inlet: Polluted air containing particulate matter and other contaminants enters the Venturi scrubber through an inlet.

2.Venturi Throat: The Venturi throat is a narrow constricted section within the scrubber where a high-velocity liquid stream (usually water) is injected through nozzles. This creates a localized drop in pressure, causing the incoming gas to accelerate.

3.Gas-Liquid Contact: As the high-velocity gas stream passes through the Venturi throat, it is mixed with the liquid stream. The liquid droplets entrain and capture the particulate matter and other pollutants present in the gas.

4.Scrubbing Process: The intimate contact between the gas and liquid phases allows for the absorption or adsorption of pollutants into the liquid phase. This can include physical processes like impaction and agglomeration of particles, as well as chemical reactions in some cases.

5.Outlet: The cleaned gas, now with reduced pollutant concentrations, exits the scrubber through an outlet.

6.Liquid Collection: The liquid laden with pollutants is collected at the bottom of the scrubber and may be recirculated through the system or treated and disposed of, depending on the specific application.

the wet scrubber is a highly efficient gas cleaning system designed for industrial applications. it effectively removes pollutants from exhaust gases, ensuring compliance with environmental regulations. this air pollution control equipment utilizes a liquid-based scrubbing process to capture and neutralize harmful particles and gases.we are the leading manufactures of venturi scubbers inbangalore, belagavi, hospet, kerala, indore, mumbai, pune, coimbatore, hosur, chennai, ambattur, hyderabad, kujarath , gujarat, maharashtra, odisha, karnataka, pondicherry, cuddalore, sivakasi, ranipet, vadodara, ahmedabad, delhi.

An Emergency chlorine scrubber, also known as a chlorine gas scrubber or chlorine gas neutralizer, is a safety device used to mitigate the release of chlorine gas in the event of an emergency or accidental chlorine gas leak. Chlorine gas is toxic and can pose serious health risks when inhaled, so its crucial to have effective safety measures in place, especially in facilities where chlorine is used or stored.

An emergency chlorine scrubber working process:

1.Detection: In the event of a chlorine gas leak, a detection system, such as gas sensors or alarms, triggers the activation of the chlorine scrubber.

2.Activation: The scrubber is activated automatically or manually, depending on the systems design and the severity of the chlorine leak.

3.Chlorine Gas Removal: The emergency chlorine scrubber uses a chemical or physical process to neutralize or absorb the chlorine gas. This process can vary depending on the specific scrubber design but often involves the use of chemicals that react with chlorine to form less harmful substances.

4.Exhaust: After the chlorine gas is neutralized, the scrubber typically exhausts the cleaned air or gas safely, ensuring that no harmful chlorine gas is released into the environment.

Caustic fume scrubbers are effective at controlling emissions of acidic gases and can significantly reduce the environmental impact of industrial processes that produce these pollutants. Proper monitoring and maintenance of the scrubbing system are essential to ensure its continued efficiency.

Its important to note that the choice between an alkali fume scrubber and a caustic fume scrubber depends on the specific requirements of the industrial process and the types of pollutants being emitted. Both types of scrubbers utilize alkaline solutions for pollution control but may differ in terms of the caustic strength and operating conditions.

A Boiler flue gas scrubber, often referred to as a flue gas desulfurization (FGD) system, is a technology used to remove pollutants, primarily sulfur dioxide (SO2), from the exhaust gases generated by industrial boilers, power plants, and other combustion sources. The primary purpose of a boiler flue gas scrubber is to reduce air pollution and comply with environmental regulations.

Boiler flue gas scrubber working process:

1.Gas Absorption: Flue gas containing pollutants, such as SO2, is directed through a contactor or absorber vessel.

2.Absorbent Solution: In the absorber, the flue gas comes into contact with an absorbent solution, usually a liquid slurry or a chemical reagent. The most common absorbent is limestone (calcium carbonate), which reacts with the SO2 to form calcium sulfite or sulfate.

3.Chemical Reaction: The chemical reaction between the absorbent and SO2 converts the sulfur dioxide into a less harmful compound. This reaction is typically represented as follows:

SO2 + CaCO3 (limestone) -> CaSO3 (calcium sulfite) + CO2

4.Removal of Solid Byproducts: The calcium sulfite or sulfate formed in the reaction is separated from the absorbent solution in a solid-liquid separation unit. The remaining liquid can be recirculated for further use.

5.Waste Disposal: The solid byproducts are typically treated as waste and disposed of or used in other applications.

NAPCEN Hard chrome scrubbers are often used in industries such as metal finishing, semiconductor manufacturing, chemical processing, and power generation, where strict environmental regulations require the removal of hazardous or harmful substances from exhaust gases or wastewater.

Its important to note that the design and operation of a hard chrome scrubber can vary significantly depending on the specific pollutants to be removed and the industrial process involved. Different scrubber technologies, such as wet scrubbers, dry scrubbers, or electrostatic precipitators, may be used based on the requirements of the application.

A CO2 Scrubber, also known as a carbon dioxide scrubber CO2 removal system, is a device or system designed to remove carbon dioxide (CO2) from gas streams, particularly in industrial, environmental, and safety applications. The primary purpose of CO2 scrubbers is to control and reduce CO2 emissions, which are a significant contributor to climate change when released into the atmosphere. These scrubbers are used in various industries, including power plants, chemical processing, and environmental control systems.

A typical CO2 scrubber working process:

1.Gas Inlet: The gas stream containing carbon dioxide enters the CO2 scrubber system. This gas stream might be emissions from industrial processes, flue gases from combustion, or other sources containing elevated CO2 levels.

2.Scrubbing Solution: Inside the scrubber, there is a solution, often referred to as a scrubbing solution or absorbent. This solution is specially formulated to react with and capture CO2 from the gas stream.

3.Contact Zone: The gas stream is passed through the scrubbing solution in a contact zone. In this zone, the CO2 dissolves into the solution through a chemical reaction.

4.Chemical Reaction: The Chemical reaction responsible for CO2 absorption depends on the type of absorbent used. Commonly used absorbents include aqueous solutions of mono ethanolamine (MEA), sodium hydroxide (Na OH), or potassium hydroxide (KOH). For example, when MEA is used, the reaction with CO2 is as follows:

CO2 + 2MEA -> MEA2CO3

The resulting product is an MEA-based carbonate solution.

5.Regeneration: After the scrubbing solution has absorbed a significant amount of CO2, it needs to be regenerated. This typically involves heating the solution to release the captured CO2, which can then be captured, compressed, and stored for other purposes or safely vented in a controlled manner.

6.Exit and Disposal or Utilization: The Treated gas stream exits the scrubber with a reduced CO2 concentration. The captured CO2 can be further processed for utilization or storage, depending on the specific application and environmental regulations.

Plastic fume scrubbers are favored in certain applications due to their corrosion resistance and durability. They are often used in industries where the exhaust gases are corrosive or contain aggressive chemicals. The choice of plastic materials for construction depends on the specific requirements and the types of chemicals involved. Common plastics used in the construction of these scrubbers include polypropylene (PP), polyvinyl chloride (PVC), and high-density polyethylene (HDPE). Plastic fume scrubbers find applications in various industries, including chemical manufacturing, metal processing, semiconductor fabrication, wastewater treatment, and more. They play a crucial role in reducing air pollution and protecting the environment by removing harmful emissions from industrial processes.