Author: E. P. CrumplerPublisher:
ISBN:
Category : Metals
Languages : en
Pages : 76
Book Description
Management of Metal-finishing Sludge
Author: E. P. CrumplerPublisher:
ISBN:
Category : Metals
Languages : en
Pages : 76
Book Description
Management of Metal-finishing Sludge
Author: E. P. CrumplerPublisher:
ISBN:
Category : Metals
Languages : en
Pages : 62
Book Description
Control and Treatment Technology for the Metal Finishing Industry
Author: Hazardous Waste Reducation in the Metal Finishing Industry
Author: PRC Environmental Management, IncPublisher: William Andrew
ISBN:
Category : Crafts & Hobbies
Languages : en
Pages : 232
Book Description
"From the Foreword: " This book presents the results of a waste audit study for the metal finishing industry. The study, carried out for the State of California but applicable for metal finishers elsewhere, identifies opportunities for waste reduction available to the metal finishing industry and develops procedures that can be used by metal finishers to assess their own waste reduction opportunities. The study emphasizes technologies available to small- and medium-sized metal finishing plants. Typically, these shops operate a variety of physical, chemical, and electrochemical processes. Chemical processes include degreasing, cleaning, pickling, etching, coating, and electroless plating. Electrochemical processes include plating and anodizing. The tasks included in the study were: (1) selecting metal finishing plants to include in the study, (2) performing a waste audit at each selected plant, (3) developing recommendations for implementing waste reduction technologies at each audited plant, (4) discussing with facility representatives the feasibility of implementing the waste reduction recommendations, and (5) developing this waste audit study report and methodology. The study identifies three categories of waste reduction technologies that are available to metal finishers: (1) source reduction, (2) recycling and resource recovery, and (3) alternative treatment. The costs associated with implementing these technologies range from a few hundred dollars for making simple improvements in housekeepiing and minor process modifications to tens of thousands of dollars for installing recovery or treatment units. The benefits realized from implementing such improvements include reductions inmaterial purchase and waste disposal costs, as well as reduction in the liability
Wastewater and Sludge Control in the Canadian Metal Finishing Industry
Author: L. BuffaPublisher: Water Pollution Control Directorate : Supply and Services Canada
ISBN:
Category : Cyanides
Languages : en
Pages : 52
Book Description
The Operation and Maintenance of Surface Finishing Wastewater Treatment Systems
Author: Clarence H. RoyPublisher: William Andrew
ISBN: 9780936569031
Category : Metals
Languages : en
Pages : 216
Book Description
Environmental Pollution Control Alternatives
Author: Treatment of Metal Wastestreams
Author: United States. Environmental Protection Agency. Office of Water ProgramsPublisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 180
Book Description
This manual is designed to train personnel in the safe and effective operation and maintenance of wastewater treatment facilities for electroplanting, metal finishing, and printed circuit board manufacturing. It emphasizes how to operate and maintain facilities that neutralize acidic and basic waters, treat wastes containing metals, destroy cyanide, and also treat complexed metal wastes.
Sludge Handling, Dewatering, and Disposal Alternatives for the Metal Finishing Industry
Author: Industrial Environmental Research Laboratory (Cincinnati, Ohio)Publisher:
ISBN:
Category : Hazardous wastes
Languages : en
Pages : 36
Book Description
Plating Waste Sludge Metal Recovery
Author: Malcolm T. HepworthPublisher:
ISBN:
Category : Metal coating
Languages : en
Pages : 198
Book Description
The U.S. Army Toxic and Hazardous Materials Agency has requested that AMAX Extractive Research & Development, Inc. conduct a five-phase program to review literature on the current state-of-the-art in metal recovery from plating wastes, to propose a typical plating sludge composition and aging treatment in lieu of actual U.S. Army plating wastes), to develop a research and design test plan for treating this typical plating sludge, to conduct the test program, and to summarize the results in a final report. The final report proposes a sulfuric acid leach of hydroxide plating sludges, containing copper, cadmium, zinc, nickel, iron, and chromium, to extract greater than 99 percent of the heavy metal values, followed by lime treatment of the resulting filter cake to render it nonhazardous to EP testing. The sulfuric acid leach extract may be treated by selective sulfide precipitation at a controlled pH regime in order to produce a mixed sulfide of copper and cadmium with most of the zinc present in the original extract separate from a leach liquor containing more than 98 percent of the chromium, which does not form a sulfide precipitate, Nickel and iron are not selectively separated under the sulfide precipitation conditions. However, a solvent extraction process using di(2-ethyl-hexyl) phosphoric acid can be used for recovering nickel, iron, and chromium from the resulting filtrate. Originator-supplied keywords: Plating sludge, Acid leach, EP toxicity, Metals, Separation, Extraction, and Recovery.