ABSTRACT
Forming Wastewaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 5.5 Pollutant Removability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219 5.6 Treatment Technology Costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220 5.7 Aluminum Forming Industrial Ef uent Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . 221 5.8 Technical Terminologies of Aluminum Forming Operations
And Pollution Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
The aluminum forming industry is a manufacturing industry in which aluminum or aluminum alloys are made into semi nished aluminum products using hot or cold working processes. The aluminum forming manufacturing operations include the rolling, drawing, extruding, and forging of aluminum. In the U.S., the industry consists of about 300 plants owned by about 150 companies. The industry employs about 30,000 workers.