Jun 082013
TAIYUAN,June 8(Xinhua)–Ma Liang was trawling the Internet looking for a bag filter that could be used at the steel plant he works at t. Plants now use both bag filters and electrostatic precipitators to reduce particulate discharge. More companies in the country are installing bag filters s. The Xi’an Environmental Protection Bureau is encouraging technological upgrade at local heating companies and expects more bag filters to be installed before winter.