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News & Regulations

CHEMICAL-FREE ODOR CONTROL WITH BIOTRICKLING FILTRATION

KCH Engineered Systems designs and manufactures a Biotrickling Filter System to remove high levels of hydrogen sulfide (H2S) gas and other odors from municipal and industrial processes. The system effectively and efficiently removes 99 percent of H2S without the use of dangerous chemicals. Instead, a simple non-proprietary nutrient is used to promote biological growth on a synthetic media.

The standard KCH Biotrickling Filter System, also sometimes called a bioscrubbing system, is a vertical, countercurrent vessel designed for continuous operation. KCH Biotricklers can also be designed for a rectangular, low-profile configuration utilizing a structured high-density media.
These systems are constructed of POLYLAST® or POLYSTRONG® material, providing the structural integrity, UV protection and corrosion resistance required for outdoor installations.

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News & RegulationsEPA FINAL RULE ON CHROMIUM ELECTROPLATING AND ANODIZING

The EPA Upheld it's final rule on chromium electroplating and anodizing. The basic requirements of the rule are as follows:  

  • PFOS based fume suppressants are now banned for use
  • Surface tension limits are lowered to 33 dynes measured with tensiometer and 40 dynes with stalagmometer
  • Emission limits are lowered to 0.006 mg/dscm for all new sources and lowered to 0.007 mg/dscm for certain existing sources

For more information, refer to NASF Summary below:

PFOS_Chrome_Reg.pdf 

 

CALIFORNIA PROVIDES LIMITED APPROVAL OF NON PFOS BASED FUME SUPPRESSANTS:

California limits the use of NON PFOS Based fume suppressants to only those approved by the State of California. Furthermore, certain OEM and DOD specifications will not allow process changes to NON PFOS based fume suppressants, requiring chromium electroplaters and anodizers to install control equipment like the Spectra U Chrome Mist eliminator. For more information refer to CARB Fact Sheet Below.  

Californiafumesuppressantfactsheet.pdf

 

 

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