Wastewater sludge processing [[electronic resource] /] / Izrail S. Turovskiy, P.K. Mathai

• Record Nr.: UNINA9910831043503321
• Autore: Turovskiĭ I. S
• Pubbl/distr/stampa: Hoboken, N.J., : Wiley-Interscience, c2006
• ISBN: 1-280-55195-X; 9786610551958; 0-471-79161-X; 0-471-79160-1
• Descrizione fisica: 1 online resource (368 p.)
• Altri autori (Persone): MathaiP.K
• Disciplina: 628.3; 628.364
• Soggetti: Sewage sludge; Sewage - Purification
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: WASTEWATER SLUDGE PROCESSING; CONTENTS; Preface; About the Authors; 1 Introduction; 1.1 Introduction; 1.2 40 CFR Part 503 Regulation; 1.2.1 General Provisions; 1.2.2 Land Application; 1.2.3 Surface Disposal; 1.2.4 Pathogen and Vector Attraction Reduction; 1.2.5 Incineration; 2 Sludge Quantities and Characteristics; 2.1 Types of Sludge; 2.1.1 Primary Sludge; 2.1.2 Secondary Sludge; 2.1.3 Chemical Sludge; 2.1.4 Other Wastewater Residuals; 2.2 Sludge Quantity; 2.2.1 Primary Sludge; 2.2.2 Secondary Sludge; 2.2.3 Activated Sludge; 2.2.4 Attached Growth System Sludge; 2.2.5 Chemical Sludge; 2.3 Sludge Characteristics2.3.1 Primary Sludge; 2.3.2 Activated Sludge; 2.3.3 Physical and Biological Properties; 2.4 Mass Balance; 3 Thickening and Dewatering; 3.1 Introduction; 3.2 Conditioning; 3.2.1 Factors Affecting Conditioning; 3.2.2 Chemical Conditioning; 3.2.3 Other Conditioning Methods; 3.3 Thickening; 3.3.1 Gravity Thickening; 3.3.2 Dissolved Air Flotation Thickening; 3.3.3 Centrifugal Thickening; 3.3.4 Gravity Belt Thickening; 3.3.5 Rotary Drum Thickening; 3.3.6 Miscellaneous Thickening Methods; 3.4 Dewatering; 3.4.1 Centrifugal Dewatering; 3.4.2 Belt Filter Press; 3.4.3 Pressure Filter Press3.4.4 Drying Beds; 3.4.5 Other Dewatering Methods; 4 Aerobic Digestion; 4.1 Introduction; 4.1.1 Process Theory; 4.2 Conventional Aerobic Digestion; 4.2.1 Process Design Considerations; 4.2.2 System Design Considerations; 4.2.3 Operational Considerations; 4.3 Process Variations; 4.3.1 High-Purity Oxygen Digestion; 4.3.2 Low-Temperature Aerobic Digestion; 4.3.3 Dual Digestion; 4.3.4 Mesophilic Aerobic Digestion; 4.3.5 Autothermal Thermophilic Aerobic Digestion; 4.3.6 Technological Improvements; 5 Anaerobic Digestion; 5.1 Introduction; 5.1.1 Advantages and Disadvantages5.1.2 Theory of Anaerobic Digestion; 5.2 Environmental Factors; 5.2.1 Solids and Hydraulic Retention Times; 5.2.2 Temperature; 5.2.3 pH and Alkalinity; 5.2.4 Toxic Materials; 5.3 Process Variations; 5.3.1 Low-Rate Digestion; 5.3.2 High-Rate Digestion; 5.3.3 Thermophilic Digestion; 5.3.4 Two-Stage Digestion; 5.3.5 Two-Phase Digestion; 5.4 Process Design; 5.4.1 Per Capita Basis; 5.4.2 Solids Loading; 5.4.3 Solids Retention Time; 5.4.4 Volatile Solids Reduction; 5.4.5 Gas Production; 5.5 System Component Design; 5.5.1 Tank Design; 5.5.2 Digester Covers; 5.5.3 Mixing5.5.4 Heating; 5.5.5 Gas Usage; 5.6 Operational Considerations; 5.6.1 Reactor Performance; 5.6.2 Odor Control; 5.6.3 Supernatant; 5.6.4 Struvite; 5.6.5 Digester Cleaning; 6 Alkaline Stabilization; 6.1 Introduction; 6.1.1 Advantages and Disadvantages; 6.1.2 Process Theory; 6.2 Process Application; 6.2.1 Liquid Lime Stabilization; 6.2.2 Dry Lime Stabilization; 6.2.3 Advanced Alkaline Stabilization Technologies; 6.3 Process Design; 6.3.1 Sludge Characteristics; 6.3.2 Contact Time and pH; 6.3.3 Lime Dosage; 6.3.4 Alkaline Material Storage; 6.3.5 Lime Feeding; 6.3.6 Liquid Lime Mixing; 6.3.7 Dry Lime Mixing
• Sommario/riassunto: Reap the benefits of sludgeThe processing of wastewater sludge for use or disposal has been a continuing challenge for municipal agencies. Yet, whensludge is properly processed, the resulting nutrient-rich product--biosolids--can be a valuable resource for agriculture and other uses. Wastewater Sludge Processing brings together a wide body of knowledge from the field to examine how to effectively process sludge to reap its benefits, yet protect public health.Presented in a format useful as both a reference for practicing environmental engineers and a textbook for graduatestuden