Quality control in resource recovery

Abstract

Statistical quality control of the output of a resource recovery plant was investigated. The principles and uses of quality control charts for this application are presented and procedures for starting a quality control program are discussed. Quality control is a tool to help the resource recovery plant manager meet specifications necessary to market the output. As examples, samples of shredded waste and aluminum-can waste were taken at the pilot plant of the National Center for Resource Recovery, Inc. These were analyzed for weight, density, and content of pickable contaminants. Control chart examples are drawn using the data.