This publication provides 100 pages of introductory technical guidance for civil engineers, environmental engineers, and other professional engineers, construction managers and treatment plant operators interested in methods and processes for treatment of hazardous liquid waste streams. Here is what is discussed: 1. DEFINITIONS, 2. AIR STRIPPING, 3. BIOLOGICAL TREATMENT, 4. CARBON ADSORPTION, 5. CHEMICAL OXIDATION, 6. RESIN ADSORPTION, 7. CHEMICAL REDUCTION, 8. PRECIPITATION, 9. FLOCCULATION AND SEDIMENTATION, 10. NEUTRALIZATION, 11. OIL-WATER SEPARATION, 12. DISSOLVED AIR FLOTATION, 13. REVERSE OSMOSIS, 14. SOLIDIFICATION/STABILIZATION, 15. ULTRAFILTRATION