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, natural degeneration, treatment of waste, manure-pharmaceutical, foundry, chemical, sterilization industry.
Air scrubber design utilizes a variety of gas-liquid contacting methods, depending on what is optimum for a given application of a set of conditions. These methods include packed beds, spray towers or water jets.
Typical acid gases consist of sulfur dioxide (SO2), hydrogen chloride (HCl), and hydrogen fluoride (HF). Less common acid gases include hydrogen bromide (HBr), hydrogen cyanide (HCN), and a various organic acid such as acetic or propionic acids. These gases are emitted from, for example, boilers, catalytic oxidizers for halogenated solvents, storage tank vents, and by various chemical processes. All of these compounds have a harmful effect on the environment. All acids are corrosive: sulfur dioxide is a precursor to acid rain, hydrogen cyanide, and hydrogen fluoride are highly toxic. Any uncontrolled emissions can damage nearby vehicles, buildings, and structures.
A standard acid scrubber works at low pH as a result of which base components become captured: salt is formed that way. On the basis of density and/or conductivity of a part of the carrier liquid sluiced. The sluiced liquid can contain salts up to 15% and after purification is drained or evaporated for re-using. A generally used acid is sulphuric acid (H2SO4) for economic reasons. For specific applications, for instance, for the captured of NH3 also nitric acid (HNO3) is used.
Undoubted advantages of such acid scrubbers are their relative compactness and very high disposal output. In addition to this, such scrubbers can contribute to built modular, multiple step systems. However, acid scrubbers are pH-targeting designated and acid used.
Being a new type of wet air scrubber, Multi-vortex wet air scrubber cleans air from gases, dust,
vapors and other admixtures using water or other cleaning liquid. Multi-vortex wet air scrubber produces the cleaning mist differently from other scrubber systems, which results in running costs that are much lower than for a common wet air scrubber. Multi-vortex wet air scrubber is the new type of wet air scrubber that saves water.
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