Abstract

This manual provides general guidelines on how to remove dissolved metals from wastewaters for discharge to sanitary sewer systems. Each of the various stages or operations of wastewater treatment is discussed with their role in the metals removal process. The treatment scheme described is general for metals removal. Some variations exist among different systems. This manual is intended to provide, in layman's terms, a better understanding of the precipitation process as applied to industrial wastewater treatment.

Table of Contents

• Section 1: Introduction
• Section 2: Definitions
• Section 3: Metal Treatment by Hydroxide Precipitation
• Section 4: Unit Operations of Wastewater Treatment
  1. Rapid Mix
  2. Sedimentation
  3. Filtration
  4. Sludge Treatment
• Section 5: Additional Considerations for Plating Type Wastes:
  1. Plating Waste Treatment - Cyanide Oxidation
  2. Plating Waste Treatment - Chromium Reduction

Download Removing Heavy Metals from Wastewater (pdf) (Issued: August, 1994)

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