Category: Articles

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Air Quality Control in Asphalt Manufacturing Process

Nowadays asphalt is typically processed from petroleum: oil wells supply petroleum to oil refineries, where it is separated into various factions, one of which is asphalt. Them asphalt may be modified in a variety of ways. Asphalt for paving goes through a mixing process in either a drum mix plant, where is a large-output and...

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Wet Air Scrubber Techniques for Emission Reduction at Livestock Farming

Wet air scrubbers are used on ventilation air as it exits livestock housing. Some wet scrubbers use water, which is then partially recirculated, while others use an acid or base to shift the pH for absorption of specific gases in the air. The current technology behind chemical and biological wet air scrubbing at livestock facilities...

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Packed Tower Wet Air Scrubbers Overview

Packed tower scrubbers (packed column or packed bed scrubbers) are designed for chemical scrubbing of contaminants from gas streams. Such scrubbers are versatile, reliable systems that serve the widest variety of processes. Packed tower scrubbers are highly recommended for the efficient removal of inorganic gases, odors, and fumes. These scrubber systems are particularly appropriate where...

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Common Prejudices Regarding Wet Scrubbers: Are They Holding Industry Back?

Over the past several decades there have been immense improvements in process chemistry, a better understanding of materials, simplified designs, and other technological enhancements. Flue-gas desulfurization (FGD) is a set of technologies used to remove sulfur dioxide (SO₂) from exhaust flue gases of fossil-fuel power plants, and from the emissions of other sulfur dioxide emitting...

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How Bill Gates Aims to Decide a Problem of Greenhouse Effect?

Recent research has shown that removing carbon dioxide (CO₂) from the atmosphere can be done on an industrial scale that would be economically viable. The research was carried out by the Canadian company “Carbon Engineering” that built a pilot plant in Squamish. This plant removes carbon dioxide from the atmosphere and uses it to produce...

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Smokestack Scrubbers: a New Component to Industrial Exhaust Systems

Power plants burn coal, so the smoke and fumes constitute a serious threat to the health of the people who live downwind. The federal government is now trying to decide this problem. It seems that the simplest solution is an adoption of a tighter emission standard. But in fact, it should be noted, the smokestack...

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Best Practices for Underground Coal Mines: Wet Air Scrubbers in Mining

Wet air scrubbers are devices used in underground coal mines for the exhaust air treatment system of various internal combustion engines, primarily as a spark arrestor. A secondary function is to remove pollutants from the exhaust gas. Wet scrubbers are widely used in underground applications of diesel particulate matter (DPM) and other pollutant gases. Wet...

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A New Perspective on the Shipping Industry: the Environmental Impacts of Exhaust Gas Scrubber Discharge

Wet air scrubbers, which use seawater or fresh water as cleaning media for sulfur dioxide, are progressively used by shipping companies to comply with emissions regulations. Nowadays shipping emissions are likely to increase significantly, alongside increasing emphasis on the sustainability and environmental impacts of the maritime transport sector. Emissions of gases and particulates to the...

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Wet Air Scrubber Performance and the Factors That Influence the Development of Scrubber Systems

The last decade has brought tremendous improvement in process chemistry, a better understanding of materials, simplified designs, and other technological enhancements. The much higher scrubber reliability has been attained by simplifying process configurations, understanding process chemistry better, selecting better materials, using redundant equipment in critical areas, applying practical utility construction experience in power plant operation....

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Chemical and Biological Wet Air Scrubbers in Animal Barns

The current technology behind chemical and biological air scrubbing in animal barns can be optimized by careful maintenance and recalibration. European and regional air quality policy in the last decades has increased pressure on pig and poultry farmers to limit their farms’ emissions. Each air scrubbing pressure animal barn must achieve an ammonia of 70%....