As a selective oxidizing agent, chlorine dioxide possesses several chemical advantages when compared to the traditional use of chlorine in wastewater treatment. Chlorine dioxide does not hydrolyze in water, and thus it retains its biocidal activity over a broader range of pH. It is also non reactive with ammonia and most nitrogen-containing compounds, and thus effective at lower dose levels than chlorine. It also eliminates phenols, simple cyanides and sulfides by oxidation. Likewise it is effective at odor control and will oxidize sulfides. Chlorine dioxide is also effective at oxidizing iron and manganese compounds.
By Applied Oxidation LLC based in Chattanooga, TENNESSEE (USA).
Natural gas gathering systems deliver large volumes of gas via pipleline to the central inlet of the gas processing facility. Removal of solid contaminants and free liquids present in the inlet gas is critical to the downstream process. Iron oxides, iron sulfides, dirt and other deformable particles can flow into the processing system. Effective removal of these contaminants is needed to prevent fouling. Pentair Porous Media technologies will help with a clean, natural gas feed, reducing upsets and associated downtime and increase productivity, lowering capital costs with fewer change-outs.
By Pentair Filtration Solutions, LLC based in Conroe, TEXAS (USA).
The growing demand placed on the world’s water, in combination with more stringent water quality regulations, have placed unprecedented demands to provide safe, reliable and aesthetically pleasing drinking water. Air stripping is an effective way of removing volatile organic chemicals (VOCs) from contaminated water and is commonly used for this application. Air stripping systems mix air with a water supply with the goal to generate the largest possible air-water contact area so that VOCs and dissolved gases, such as radon and hydrogen sulfide, will move from the water to the air. In addition to removing VOCs, air stripping is primarily used for removing oxidizing contaminants such as iron and manganese, improving taste, or removing odor. Air stripping is an EPA Best Available Technology (BAT) for some VOCs including benzene, toluene, xylene, tri/tetrachloroethylene, trihalomethanes, vinyl chloride and many others.
By Mazzei Injector Company, LLC based in Bakersfield, CALIFORNIA (USA).
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