Category: Articles

One of the biggest challenges environmental engineers face is devising new techniques to prevent additional air pollution. The industry is a large contributor to air pollution. Scrubbers are used at coal-burning power plants, asphalt/concrete plants, and a variety of other facilities that emit sulfur dioxides, hydrogen sulfide, and gases with high water solubility. The work...

The starting points for the design of the biological wet air scrubber were low operating costs and energy savings. Such wet air scrubber has low water and energy consumption, as the amount of washing water that is circulated is very low. The system is characterized by clever simplicity. Thus the biological wet air scrubber reduces...

Nowadays air emissions from animal housing systems are being examined more closely for ways to mitigate potentially harmful gases. Wet air scrubbers are one way to remove pollutants from air being exhausted from mechanically ventilated buildings. Wet scrubbers use liquid to collect dust or particulate matter (PM) and absorb gases from the air by using...

A packed bed is a hollow tube, pipe or another vessel that is filled with a packing material. It can be designed with structured packing or this packing can be filled with a small object such as Raschig rings. Packed bed may contain catalyst particles or adsorbents such as zeolite pellets, granular activated carbon, and...

Acid scrubber technology is one of the methods for air pollution control with the aim to dust control and reduce air pollution caused by various industries. Acid scrubbers adopt wet scrubbers as one of its forms to counter and remove polluted gas emissions into the environment. Acid scrubbers are majorly applied in the manure processing,...

What is the lowest cost method of removing the particulate to an allowable emission level? Wet scrubbing usually provides high removal efficiencies as the dust particles are captured in the water droplets. When this happens, the particle size increases, thereby making it easier to remove the dust. A smaller dust particle would be surrounded by...

The main task of any type of scrubber is removing unwanted gases and particulate matter from industrial smokestacks before they enter the atmosphere. The two main types of scrubbers: wet scrubbers and dry scrubbers. These scrubbers can reduce up to 90 percent of emissions that contribute to smog and acid rain. Wet scrubbers are effective...

Combustible dust explosions must be eliminated as quickly and effectively as possible in any processing facility. All combustible as solids materials may entail a deflagration or explosion hazard in manufacturing and reduction processes of separation into fine particulates. Dust and other similar substances that contain organic materials and different types of metals are explosive. In...

Wet air scrubbers remain the main force for the capture and collection of particulates. Particulate scrubbers, often called Venturi scrubbers, are successful in removing particulates from exhaust gases with high efficiency. This type of dust control technology is a part of the group of air pollution controls collectively referred to as “wet scrubbers”. Venturi scrubbers...

The worldwide market for wet scrubbers is anticipated to register a progressive growth rate in the next few years. The introduction of strict standards for different industries concerning the use of harmful chemicals and emission leads to the fact that wet scrubbers are becoming increasingly necessary for reducing pollution levels. Monitoring agencies such as the...