ABSTRACT
This chapter presents the results of the pretreatment facilities study completed at PEMCO and describes how ultrafiltration was found to be the best available technology in terms of ease of operation, reliability, degree of treatment attainable, economics and adaptability. It provides a basis for investigation at other locations and subsequent confirmation by technically qualified personnel. PEMCO began supplying die castings as well as finished components and assemblies in 1946. The Company operates a plant of 135,000 square feet in the southwestern corner of Michigan and employs approximately 150 people. Based on a preliminary screening of PEMCO's wastewater completed in November of 1984 and anticipated categorical standard and local publicly owned treatment work ordinance limits, a baseline monitoring program was structured. The cost estimates placed on the membrane filtration alternative were discouraging, but the simplicity of the process was an incentive to complete testing with a unit operating in the ultrafiltration range.
