Heavy Metal Contamination Removal for Industrial Wastewater
Heavy Metal Removal Invention Surprises Treatment Operators!
|A new chemical blend named MetFloc™ works so well for heavy metal removal from waste water that it seems impossible: faster reaction times, removal of 21 identified heavy metals in one pass, and reduced sludge volumes. The metals include copper (Cu), nickel (Ni), zinc (Zn, chrome (Cr), and cadmium (Cd). Complicated treatment routines with multiple chemicals are eliminated. Wastes can be mixed, with no need to separate waste streams. A bonus is the elimination of the common sulfur smell generated by other processes.
|The patent-pending MetFloc™ process, now available from Wastech, reduces treatment costs, meets or betters discharge limits, and lowers the risk of discharge violations. With more predictable treatment results, automation becomes possible, and company boards of directors can view the waste treatment process with confidence.|
The MetFloc™ Process
MetFloc™ chemicals are key to the process. Even the presence of metal complex or interfering agents (such as ammonia, sulfates, soaps, etc.) does not reduce the effectiveness of the MetFloc process in bringing metal levels to below compliance discharge limits in a single pass. The MetFloc process does so instantaneously and without multiple pH adjustments. Sludge volume is reduced, and sludge is easier to dewater. Even chrome waste is reduced to total chrome below discharge limits in one pass. Low metal wastes can be removed to ppb levels.
MetFloc chemicals compete with commodity solutions such as caustic soda, ferric chloride, ferrous sulfate, lime and acid additives, or proprietary metal grabbers. The MetFloc solution is more cost effective, provides better results, lowers operator costs, requires fewer tanks, and simplifies hardware.
For the first time, small waste generators can treat heavy metal waste streams onsite, lowering hauling charges dramatically. Packaged batch and continuous heavy metal treatment systems available from Wastech make batches as small as 50 gallons economical. Please see the following:
Heavy Metal Removal Systems
Heavy metals are common byproducts of industry and laboratory applications. These heavy metals, such as nickel, chrome, zinc, cadmium, and copper, present a health risk to humans. As a result, the United States Environmental Protection Agency, or EPA, requires that these heavy metals are reduced to acceptable levels before the wastewater is released into the environment.
Wastech Controls and Engineering helps industrial centers and laboratories eliminate or reduce the contents of up to 21 heavy metals from their wastewater with their heavy metal removal systems. Wastech provides both precipitation and ion exchange heavy metal removal systems. Precipitation processes for heavy metal removal are most useful for wastewater with higher concentrations of heavy metals, whereas ion exchange systems are useful for wastewater with lower levels of heavy metals.
Another consideration is which removal system to use to remove the metals in the wastewater. The answer depends on whether the metals are dissolved or suspended in the solution. Dissolved metals must be removed with a chemical process, such as Wastech's trademarked MetFloc chemical process. The MetFloc heavy metal removal system is a revolutionary treatment process that can remove the 21 identified heavy metals in just one pass, eliminating the need for multiple passes or pH adjustments during the removal process. Suspended metals, on the other hand, can be filtered out in a similar manner to how gold is filtered from a solution during the mining process. Wastech offers filtration removal systems to remove these suspended metals as well.
Wastech designs and manufactures both batch and continuous heavy metal removal systems. Batch systems remove the heavy metals from up to 500 gallons of water at a time. These systems are most appropriate for small volumes of wastewater. Continuous systems, on the other hand, treat a steady stream of wastewater. These systems are more expensive than batch systems, but they are the most effective solution for removing metals from larger amounts of wastewater where the flow is higher than 5 gallons per minute.
Call the knowledgeable representatives at Wastech to learn more about your heavy metal removal options. If you are not sure which system would be most effective, the skilled staff at Wastech can advise you and help create a system that will meet your needs.