acid air treatment Applications

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Air pollution control solution for the NOx and CO2

by Macrotek Inc.     based in Markham, ONTARIO (CANADA)

Specific industrial applications require wet end of pipe treatment for NOx or CO2. Macrotek offers absorbers utilizing various reagents for neutralization of NOx or CO2. NOx scrubbing is particularly suitable in situations where Nitric Acid can be utilized elsewhere in the plant, as it is a scrubbing product. As CO2 regulations become more stringent, methods for reducing emissions are continually being evaluated. Macrotek offers CO2 scrubbing technology which isolates CO2 in a contaminated stream to produce a pure CO2 product, making sequestration a more appealing option.

Air pollution control solution for the particulate matter

by Macrotek Inc.     based in Markham, ONTARIO (CANADA)

Regulations around the globe are becoming more and more stringent for particulate emissions. Macrotek offers some of the most efficient wet and dry technologies to meet the latest EPA, EU, and MOE standards. Often, particulate collection is combined with acid gas removal. Our most advanced wet-dry system meets and exceeds the most stringent regulations for both hazardous gases and particulate.

Air Pollution Control Solution for the FGD - SO2

by Macrotek Inc.     based in Markham, ONTARIO (CANADA)

Flue Gas Desulfurization (FGD) involves the removal of sulfur dioxide and other acids from flue gases. Typical sources of acid gases include fossil fuel boilers, waste combustors, and other industrial applications such as refining and smelting. The Macrotek wet and dry FGD systems can achieve over 99% acid removal by using a variety of reagents, including caustic, sodium carbonate, lime and limestone, and waste alkaline solids or liquids.

Dust collection and odor control in waste management sites

by F.G.M. engineering srl     based in Santa Croce sull`Arno, ITALY

Th turn key plant is composed by three different wet stages. The first stage is a venturi jet scrubber to collect dust and particles, then the second and third stages are deputed to absorb bad smells, such as H2S, Ammonia and Ammines. The absorption takes place thanks to the injection of chemicals (such as Sulphuric Acid, Sodium Hypochlorite and Sodium hydroxide.

Applications and Air Pollutants Removed in Hazardous, Solid and Liquid Waste Treatment Operations

by Bionomic Industries Inc.     based in Mahwah, NEW JERSEY (USA)

Venturi scrubbers with FORCE FLUX Condensation technology and Wet Electrostatic Precipitators for industrial, municipal, sewage sludge and pathological waste incinerators to remove micron, submicron particulate, heavy metals and acid gases. Special quencher/scrubber systems for dioxin removal. HCL scrubbing from PVC plastic waste burning. Fine particulate, acid gases and NOx removal on munitions destruction. Cleanup of all pollutants from liquid waste incinerators and other high temperature destruction processes. Acid and particulate emissions from electronic board and metals recovery operations.

Air Pollution Removal Orthopedic appliances Industry

by Bionomic Industries Inc.     based in Mahwah, NEW JERSEY (USA)

Removal of acid gases and NOx from material surface treatments. Remove titanium dust from grinding, abrasive polishing and buffing operations. Emissions from high temperature furnaces.

Environmental technology for water treatment industry

by Körting Hannover AG     based in Hannover, GERMANY

In many fields of water treatment Körting ejectors are applied as gas introducing systems; Waste water aeration in aeration tanks and SBR-Plants. Introducing ozone or oxygen. Pressurised dissolved air flotation. Disinfection of potable water and de-acidification.  Further applications are: Diluting and conveying acids and lye during the process of regenerating ion exchangers.

Applications and Air Pollutants Removed in the Metallurgical and Metal Finishing Industries

by Bionomic Industries Inc.     based in Mahwah, NEW JERSEY (USA)

From Aluminum to Zinc in the Metals Industry, Bionomic offers field proven extensive line of equipment and systems for; capturing acid gases, ammonia and alkaline mists from metal cleaning, treatment, etching and finishing operations including chemical milling. Acid and NOx emissions from pickling, anodizing, chemical milling and precious metals dissolving operations. Systems for HCL recovery from pickling lines, special scrubbing equipment and chemistries for NOx removal. Zinc galvanizing and electrogalvanizing line emissions. Removal of fine metallic particulate including tars from smelters and sinter plants as well as particulate emissions from blast, reverberatory and other furnaces. 

Sulfide Oxidation with Hydrogen Peroxide (H2O2)

by USP Technologies     based in Atlanta, GEORGIA (US) (USA)

Sulfide Odor Control Sulfide is found throughout the environment as a result of both natural and industrial processes. Most sulfide found in nature was produced biologically (under anaerobic conditions) and occurs as free hydrogen sulfide (H2S) - characterized by its rotten egg odor. We are most likely to encounter biogenic H2S in sour groundwaters, swamps and marshes, natural gas deposits, and sewage collection/treatment systems. Manmade sources of H2S typically occur as a result of natural materials containing sulfur (e.g., coal, gas and oil) being refined into industrial products. For a variety of reasons - aesthetics (odor control), health (toxicity), ecological (oxygen depletion in receiving waters), and economic (corrosion of equipment and infrastructure) - sulfide laden wastewaters must be handled carefully and remediated before they can be released to the environment. Typical discharge limits for sulfide are < 1 mg/L. Sulfide Treatment Alternatives There are dozens of alternatives for treating sulfide laden waters, ranging from simple air stripping (for the low levels present in groundwaters) to elaborate sulfur recovery plants (used to treat several tons per day at refineries and coal burning power plants). There are processes based on biology (using compost filters, scrubbing media, or inhibition/disinfection), chemistry (oxidation, precipitation, absorption, and combination), and physics (adsorption, volatilization, and incineration). Each process occupies a niche which is often defined by the scale and continuity of treatment, whether the sulfide is in solution or is a gas, the concentration of sulfide involved, and the disposition of the sulfide containing medium. However, for reasons relating to convenience and flexibility, chemical oxidation (using hydrogen peroxide) continues to grow in its scope of application. Treatment with Hydrogen Peroxide While other peroxygens such as permonosulfuric (Caro’s) acid, peracetic acid, and persulfates will oxidize sulfide, their use for this application is overkill. Hydrogen peroxide (H2O2) is considerably simpler and more cost-effective. H2O2 may control sulfides in two ways, depending on the application: Prevention - by providing dissolved oxygen which inhibits the septic conditions which lead to biological sulfide formation; and Destruction - by oxidizing sulfide to elemental sulfur or sulfate ion.

PLAZKAT systems for treatment of emissions generated in the production and processing of plastics and polymers

by Plasma Air Systems Corporation     based in Harju Maakond, ESTONIA

In connection with the production and processing of polymer materials (manufacturing and cutting plastic film, workingwith thermoplastics, laser cutting plastic) it is necessary to remove pollutants from the ambient air in the working area (e.g.contaminants). In this environment it is usual to install systems for removing organic substances, mainly carboxylic acids, ketones, styrene, hydrocarbons С1-С10 etc.

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