Advanced Water Treatment Technology in Foundries, Including Today's Environmental Concerns

摘要

Foundries have cooling water, boiler water and wastewater treatment requirements that are similar to those in other industries. They also have requirements that are uniquely theirs, technically, operationally and environmentally. The latter includes corrosion and deposits in induction furnace closed cooling water systems; corrosion and deposits in cupola gas and shakeout room wet scrubber systems; and oil, heavy metals, sludge and phenolic compounds in wastewater. This paper describes, in detail, the problems encountered in foundry water systems, their causes, and modern, advanced technologies to alleviate the problems, taking into consideration today's environmental concerns.