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Pollution Issues With Smelting Catalytic Conversion

Nov 20th 2015 at 10:41 PM

Catalytic converter smelters help in metal refinement and extraction from the crude ore. This naturally is a highly beneficial process and forms the crucial part of various industrial processes. As with all kind of conversion and extraction processes, one needs to deal with various pollutants that escape as the byproduct. Nowadays, with developments in the technologies various options and add-ons are available with the converters that can neutralize the toxic pollutants and minimize carbon footprints. Use of high temperature during the extraction of the metal leads to the production of slag or solid waste which is the main cause of concern.

The principal sources of worry being:

•    Air emissions contaminant laden
•    Process wastes - slag and wastewater

Air emissions also contain pollutants such as acid rain. Smelting process involving sulfide ores lead to the production of sulfur dioxide. This reacts chemically leading to the formation of mist of sulfuric acid in atmosphere. Falling acid rain increases acidity of lakes, soils, and streams. The problems were rife in the traditional smelters. Today however the things have changed with manufacturers becoming conscious regarding the environment.

In modern-day catalytic converter, the generated waste mostly returns to the processes preventing its escape into the environment. Especially if the economic value related to metal concentrate present in slag is substantial, returning within the process makes complete sense from economic point of view. This in turn will reduce amounts that manufacturers need to dispose permanently. These days, technological developments are not only reducing but also completely preventing the pollution from the smelters.

Air emissions in the traditional scenario used to contain high levels of different metals. For example, selenium and copper resulting from the copper smelter are beneficial and even essential for different organisms in small trace. But the same metals turn toxic in overabundance. These contaminate soil present near smelters leading to destruction of vegetation. Also the particulate matter coming out from these may contain oxides of various metals like mercury, arsenic, and cadmium.

Modern-day industrial scenario has changed towards the better with significant transformations in the types of smelters used and related technology developments. For example, the sulfur dioxide emissions associated with the older varieties is no longer a problem today. The machines capture them as soon as generated so that emissions simply do not occur. This is possible through the latest technology like use of electrostatic precipitators. These capture the dust particles returning them to the processes. This in turn reduces the overall amount is that the industries need to dispose off safely.

Most of the emissions go back to the process. Raw material elimination and substitution through aluminum cans or lead battery recycling decrease ore processing needs significantly. This in turn leads to the reduction of environmental pollution. In order to get the best results industries have to invest in the latest possibilities and options available in the market to improve the results from such operations.

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About The Author

Tom Blake is an expert in recycling catalytic converters who also likes to write many interesting articles and blogs, helping people in understanding the process and the many advantages that stem from it. In the US, he recommends as the most trusted specialist for this job.

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