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COMPARATIVE STUDY OF AIR CLASSIFIERS
Citation:
Hopkins, V., B. Simister, AND G. Savage. COMPARATIVE STUDY OF AIR CLASSIFIERS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/2-81/221.
Description:
This report describes the results of field tests of seven different air classifier systems. The systems are compared in regard to (a) their capacity to handle refuse and separate it into a heavy fraction and a light fuel fraction, (b) their ability to concentrate lights in the light fraction and heavies in the heavies fraction as compared to the infeed, (c) the quality of the light fraction for refuse-derived fuel, (d) the yield of combustibles from the infeed that are collected in the light fraction, (e) the consumption of air required to handle a given quantity of infeed, and (f) costs (engineering, capital, and operation and maintenance) per unit weight of refuse infeed at design capacity. Tests were run on each classifier at three airflow rates and at 5 to 10 refuse infeed rates. Procedures used to run these tests are given, and treatment of samples taken from light and heavy fraction streams is outlined. Each air classifier system is described, operation explained, and conclusions and recommendations enumerated.