Publisher : Scholars World Author : Sohail Ayub Language : English Edition : Latest By Publishers Book Cover : Hard Back ISBN : 9789386071200
Table of Content
Acknowledgementsv Prefacevii List of Figuresxiii List of Tablesxvii 1.Introduction1 1.1General 1.2Chemistry of Chromium 1.2.1Use of Chromium 1.2.2Disposal of Chromium 2.lectroplating Operations: Process Details
Wastewater Generation
Treatment Methods and Disposal5 2.1Introduction 2.2lectroplating Processes 2.3Sources of Wastewater 2.3.1General 2.3.2Cleaning Solutions 2.3.3Spent Alkaline and Rinse Waters 2.3.4Acid Pickling and Rinse Waters 2.3.5Cyanide Concentrations 2.3.6Chromate Wastes 2.3.7Metal Wastes from other Plating Wastes 2.3.8Floor Washes 2.3.9Regeneration Wastes 2.3.10Composite Wastewater Concentration 2.4Methods of Plating Waste Treatment 2.4.1Precipitation 2.4.2Ion Exchange 2.4.3Reverse Osmosis 2.4.4Adsorption Process 2.5Disposal of Metal Plating Wastes 3.Adsorption: Adsorption and Review of Recent Investigations19 3.1General 3.1.1Physical Adsorption 3.1.2ChemicalAdsorption 3.1.3Activated Adsorption 3.2Theory of Adsorption 3.2.1Adsorption Phenomena 3.2.2Adsorption Rate Kinetics 3.3Interpretation of Isotherms 3.4Types of Adsorption Systems 3.4.1Batch Adsorption Systems 3.4.2Column Adsorption Systems 3.5Review of Recent Investigations 4.Objective of the Present Work and its Relationship with the Previous41 5.Materials and Methods45 5.1Collection of Samples and Site Description 5.2Selection of Adsorbents and Sample Preparation 5.3Chemicals 5.4xperimental Procedure 5.4.1Batch Studies 5.4.2Column Studies 5.4.3Hydrolysis of Adsorbent and Desorption 6.Results and Discussions53 6.1Coconut Shell 6.1.1Batch Study Parameters 6.1.2Column Study 6.1.3Desorption and Hydrolysis Tests 6.2Neem Bark (Azadirichta indica) 6.2.1Batch Study Parameters 6.2.2Column Study 6.2.3Desorption and Hydrolysis Test 6.3Sugar Cane Bagasse 6.3.1Batch Study Parameters 6.3.2Column Study 6.3.3Desorption and Hydrolysis Test 6.4Scanning Electron Microscopy 6.5Comparison of Coconut Shell
Neem Bark and Sugar cane Bagasse Adsorbents 7.Conclusion and Recommendations89 References91 Appendices103
