RESEARCH REPORTING SERIES Research reports of the Office of Research and Development, U.S. Environmental Protection Agency, have been grouped into nine series. These nine broad categories were established to facilitate further development and application of environmental technology. Elimination of traditional grouping was consciously planned to foster technology transfer and a maximum interface in related fields. The nine series are: 5. 6. Socioeconomic Environmental Studies Scientific and Technical Assessment Reports (STAR) 7. Interagency Energy-Environment Research and Development 8. Miscellaneous Reports This report has been assigned to the ENVIRONMENTAL PROTECTION TECHNOLOGY series. This series describes research performed to develop and demonstrate instrumentation, equipment, and methodology to repair or prevent environmental degradation from point and non-point sources of pollution. This work provides the new or improved technology required for the control and treatment of pollution sources to meet environmental quality standards. This document is available to the public through the National Technical Informa tion Service, Springfield, Virginia 22161. DISCLAIMER This report has been reviewed by the Industrial Environmental Research Laboratory-Cincinnati, U.S. Environmental Protection Agency, and approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of the U.S. Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use. FOREWORD When energy and material resources are extracted, processed, converted, and used, the related pollutional impacts on our environment and even on our health often require that new and increasingly more efficient pollution control methods be used. The Industrial Environmental Research Laboratory - Cincinnati (IERL-Ci) assists in developing and demonstrating new and improved methodologies that will meet these needs both efficiently and economically. This report evaluates the removal efficiency of the 129 priority pollutants due to existing wastewater treatment technology at a single Soderberg-type primary aluminum plant. A brief process description and a detailed description of sampling, analytical, quality assurance, and treatment plant assessment are presented. Results of the investigation will enable EPA to identify which priority pollutants are being emitted by industry and to determine the ability of wastewater treatment technologies to remove priority pollutants. Questions or comments regarding this report should be addressed to the Metals and Inorganic Chemical Branch of the Industrial Environmental Research Laboratory in Cincinnati. David G. Stephan Industrial Environmental Research Laboratory Cincinnati |