Chemically-Enhanced Treatment: An Alternative to Biological Secondary Treatment for Ocean Outfalls

by Donald R. F. Harleman, Massachusetts Inst of Technology, Cambridge, United States,
Shawn P. Morrissey, Massachusetts Inst of Technology, Cambridge, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


Chemically-enhanced treatment is a process whereby chemicals are added to wastewater in order to enhance solids removals through coagulation. This treatment process can obtain removal efficiencies equal to or greater than the biological treatment process. It can be used as an alternative to biological treatment or as a solution for an overloaded biological treatment plant. Chemically-enhanced treatment is more cost effective than biological treatment and can result in a healthier ocean environment.

Subject Headings: Chemical treatment | Biological processes | Ocean engineering | Chemical wastes | Water pollution | Wastewater management | Industrial wastes | Overloads

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