Capsule Report: Hard Chrome Fume Suppressants and Control Technologies

摘要

The hard chromium electroplating industry has been affected by numerous air211u001equality regulations on both state and federal levels, In 1995, the U.S. 211u001eEnvironmental Protection Agency promulgated its 'National Emission Standards for 211u001eChromium Emissions from Hard and Decorative Chromium Electroplating and Chromium 211u001eAnodizing Tanks' (U.S. EPA, 1995 a). Under the standards, facilities that perform 211u001eindustrial or functional chrome plating must demonstrate that chromium emissions 211u001edo not exceed acceptable limits, and must also satisfy monitoring, record-keeping 211u001eand reporting requirements. Various chemical and mechanical strategies for air 211u001epollution control exist to accomplish these goals. This report evaluates the use 211u001eof hardware control technologies and fume suppressants to extract, recover or 211u001esuppress chromium emissions prior to venting the exhaust air to the atmosphere.