An Deng Yung Tse Hung and Lawrence K Wang

4.1 Industry Description 4.1.1 Casting Flow 4.1.2 Casting 4.1.3 Sand Casting Systems 4.1.4 Casting Metals 4.2 Characterization of Wastes 4.2.1 General 4.2.2 Air Emission 4.2.3 Wastewater 4.2.4 Spent Foundry Sand 4.2.5 Baghouse Dust 4.2.6 Furnace Slag 4.3 Source Reduction 4.3.1 Chemical Substitution or Minimization 4.3.2 In-Plant Reclamation 4.3.3 Waste Segregation 4.3.4 Process Modifications to Reduce Emission 4.4 Solid Wastes Reuse Technologies 4.4.1 General 4.4.2 Reuse Evaluation Framework...

References

Wright, R.J., Take a new look at sand reclamation, Foundry Management and Technology, 3, 22-24, 2001. 2. Leidel, D.S., Pollution Prevention and Foundries, in Industrial Pollution Prevention Handbook, Freedman, H. M., Eds., McGraw-Hill, New York, 1984. 3. WMRC, Primary Metal, Illinois Waste Management and Research Centre, available at http www. 4. AFS, Alternative Utilization of Foundry Waste Sand, final report (Phase I) for Illinois Department of Commerce and Community Affairs, American...

Typical Physical Properties of Nonferrous Slags

Black, glassy, more vesicular when granulated Reddish brown to brown-black, massive, angular, amorphous texture 3500 0.37 Black to red, glassy, sharp angular (cubical) particles Source From MNR, Mineral Aggregate Conservation, Reuse and Recycling, report for Ontario Ministry of Natural Resources, Ontario, Canada, February 1992. JEGEL, Manitoba Slags, Deposits, Characterization, Modifications, Potential Utilization, report, John Emery Geotechnical Engineering Limited, Toronto, Ontario, 1986....

Gloria Sanchez Galvan and Eugenia J Olguin contents

10.1 Introduction 10.2 Rhizofiltration 10.3 Constructed Wetlands and Lagoons 10.3.1 Lagoons with Free-Floating Plants 10.3.2 Surface Flow Constructed Wetlands 10.3.3 Subsurface Flow Constructed Wetlands 10.4 Bioadsorbents-Based 10.5 Conclusions References Surface water and groundwater may become contaminated with hazardous compounds as a consequence of natural and human activities. Pollutants of concern are both inorganic (heavy metals, radionuclides, nitrogen, phosphorous, etc.) and organic...

Bioadsorbentsbased systems

Current reviews on biosorption are related to general approaches90-93 to diverse types of biomass such as microbial biomass, plant wastes, and agro-based waste materials, or to a specific metal.494-98 However, a review on metal biosorption using macrophytes biomass is not available. In this chapter, a review on the current knowledge of biosorption using preferentially nonliving biomass from aquatic plants is presented. Biosorption is a property of both living and dead organisms and may be...

Treatment of Battery Manufacturing Wastes

Hawumba, Yung-Tse Hung, and Lawrence K. Wang 32.1 Introduction 32.1.1 Historical, Cultural, and Battery Technology Development 1303 32.2 Overview of the Manufacturing Process 32.2.1 Manufacturing Process 32.3 Battery Chemical Systems 32.3.1 Battery Classification 32.4 Description of Battery Subcategories in the Battery Industry of 32.4.2 Subcategory A Cadmium 32.4.3 Subcategory C Lead 32.4.4 Subcategory D Leclanche 32.4.5 Subcategory G Zinc Battery 32.4.6 Subcategory E Lithium Battery...

Azni Idris Katayon Saed and Yung Tse Hung Contents

15.1 Introduction 15.2 Sanitary Landfill 15.3 Leachate 15.4 Composition and Characteristics of Leachate 15.4.1 Leachate of Different Age 15.4.2 Leachate in Different Countries 15.5 Leachate Treatment 15.6 Bioremediation Methods 15.6.1 In Situ and Ex Situ Methods 15.6.2 Advantages and Disadvantages of Bioremediation 15.6.3 Physiology of Biodegradative 15.6.4 Metabolic Processes 15.6.5 Factors Affecting Bioremediation 15.7 Bioremediation of Landfill Leachate 15.8 Case 15.8.1 Case 1 Anaerobic...

Pollution Prevention Measures

The iron and steel industry needs to opt for technologies that help to either prevent or reduce the generation and discharge of process wastes. The various preventive measures to be adopted for reducing the environmental impacts are as follows 1. Reduction of dust emissions at furnaces by covering iron runners and using nitrogen blankets during tapping of the blast furnace 2. Use of pneumatic transport, enclosed conveyor belts or self-closing conveyor belts, wind barriers and other dust...

Waste Minimization and Pollution Prevention

This plant has already implemented the following techniques to manage and minimize its wastes 1. The polymer previously used by this plant as a flocculent in the on-site wastewater treatment system has been replaced by magnesium hydroxide in order to reduce the volume of sludge generated and shipped off-site. 2. An acid regeneration system has been installed to regenerate spent pickle liquor for reuse on-site. The type of waste currently generated by the plant, the source of the waste, the...