Evaluation of Environmental Factors Involved in Metallurgical Processes to Utilize Domestic Resources for Production of Alumina. Phase III Report: Environmental Impact Criteria for Evaluating Potential Pilot Plant Sites: Clay/Hydrochloric Acid Extraction-Gas Induced Crystallization Process

摘要

This study provides information on criteria for use in environmental evaluation of potential sites for a pilot plant where production of alumina from domestic clay resources would be investigated. The study was based on a preliminary design for a pilot plant utilizing a hydrochloric acid extraction-gas induced crystallization process. The pilot plant would cover approximately 30 acres and construction would take approximately 2 years with a work force of 200 to 225 employees. An operating period of approximately 3 years is projected employing 160 to 170 people. The expected scale of the pilot plant is such that significant impact on most environmental factors of current concern could occur. Thus, selection of a suitable site would be an important part of the planning process for the project. The results indicate that, among the environmental evaluation criteria developed, those related to preventing or minimizing adverse empact on socioeconomic conditions and air and water quality are likely to be most pertinent in the selection of a suitable pilot plant site.