Note: Front Cover -- Waste Treatment -- Copyright Page -- Table of Contents -- EDITORIAL -- ACKNOWLEDGEMENTS -- CHAPTER 1. SOME ASPECTS OF THE BIOCHEMISTRY OF AEROBIC ORGANIC WASTE TREATMENT -- COMPOUNDS WHICH ARE METABOLIZED -- ENZYMES -- COENZYMES AND ACTIVATORS -- THE CONCEPT OF ENERGY IN BIOLOGICAL SYSTEMS -- DEHYDROGENATION AND RESPIRATION -- THE METABOLISM OF ORGANIC COMPOUNDS -- WASTE TREATMENT -- CONCLUSIONS -- CHAPTER 2. SOME ASPECTS OF THE BIOCHEMISTRY OF ANAEROBIC DIGESTION -- LIQUEFACTION AND GASIFICATION -- PRACTICAL ASPECTS OF SLUDGE DIGESTION -- RECENT RESEARCH INTO THE RATE OF SLUDGE DIGESTION -- CONCLUSIONS -- REFERENCES -- DISCUSSION -- CHAPTER 3. ECOLOGY OF ACTIVATED SLUDGE AND BACTERIA BEDS -- COMPARISON OF ACTIVATED-SLUDGE AND BACTERIA-BED ENVIRONMENTS -- ACTIVATED SLUDGE -- INTERRELATIONSHIPS OF THE DIFFERENT POPULATIONS IN THE SLUDGE COMMUNITY AND THEIR ENVIRONMENT -- FACTORS DETERMINING THE CHARACTER AND DOMINANT ORGANISMS OF A SLUDGE -- BACTERIA BEDS -- ORGANISMS OF THE FILM -- FACTORS DETERMINING THE ACCUMULATION OF FILM -- GRAZING FAUNA -- FACTORS DETERMINING THE NATURE OF THE GRAZING-FAUNA POPULATION -- FACTORS INFLUENCING THE FILM-GRAZING-FAUNA BALANCE -- PRACTICAL APPLICATIONS OF ECOLOGICAL PRINCIPLES TO THE DESIGN AND OPERATION OF BIOLOGICAL TREATMENT PLANTS -- REFERENCES -- DISCUSSION -- CHAPTER 4. THE USE OF MANOMETRIC METHODS IN THE STUDY OF SEWAGE AND TRADE WASTES -- RESPIROMETERS -- REFERENCES -- DISCUSSION -- CHAPTER 5. NEW DEVELOPMENTS IN THE APPLICATION OF KESSENER BRUSHES (Aeration Rotors) IN THE ACTIVATED-SLUDGE TREATMENT OF TRADE-WASTE WATERS -- PART I-INVESTIGATIONS ON THE AERATION OF WATER -- PART II-RESEARCH ON THE RATE OF OXIDATION IN AN ACTIVATED-SLUDGE TANK -- REFERENCES -- DISCUSSION -- CHAPTER 6. PROCESS DESIGN OF BIOLOGICAL OXIDATION SYSTEMS FOR INDUSTRIAL WASTE TREATMENT. , BOD REMOVAL AND SLUDGE GROWTH -- OXYGEN UTILIZATION -- SLUDGE PRODUCTION AND OXIDATION -- NUTRITIONAL REQUIREMENTS -- OXYGEN TRANSFER -- SEPARATION OF SOLIDS FROM LIQUIDS -- DESIGN EXAMPLE -- REFERENCES -- DISCUSSION -- CHAPTER 7. THE APPLICATION OF RECIRCULATION TO THE PURIFICATION OF SEWAGE AND TRADE WASTES -- APPLICATION TO PURIFICATION OF SEWAGE - DEVELOPMENT OF THE PROCESS -- PSEUDO-RECIRCULATION -- THE TECHNIQUE OF APPLYING RECIRCULATION -- THE MECHANISM OF THE PROCESS -- APPLICATION TO PURIFICATION OF TRADE WASTES -- ACKNOWLEDGEMENTS -- REFERENCES -- DISCUSSION -- CHAPTER 8. THE TREATMENT OF CHEMICAL WASTES -- DEFINITION OF THE PROBLEM -- PRINCIPLES OF BIOLOGICAL TREATMENT -- APPLICATION OF BASIC PRINCIPLES -- CONCENTRATION LIMITS FOR DISCHARGE TO THE RIVER -- NEW BIOLOGICAL TREATMENT PLANT -- THE MONSANTO TREATMENT PLANT -- ACKNOWLEDGEMENT -- REFERENCES -- DISCUSSION -- CHAPTER 9. THE TREATMENT OF DISTILLERY AND ANTIBIOTICS WASTES -- POTABLE SPIRITS -- INDUSTRIAL ALCOHOL -- ANTIBIOTICS AND VITAMINS -- REFERENCES -- DISCUSSION -- CHAPTER 10. THE RELEVANCE OF WASTE-WATER ANALYSIS TO THE DESIGN OF PROCESS AND PRETREATMENT PLANT -- TRADE EFFLUENT AT DESIGN STAGE -- EFFLUENT FROM PRODUCTION PLANT -- EFFLUENT DISPOSAL TO RIVER OR SEWER -- EFFLUENT PRETREATMENT -- EFFLUENT ANALYSIS -- RESEARCH ON DISPOSAL OF TRADE EFFLUENT -- CONCLUSION -- REFERENCES -- CHAPTER 11. ANALYTICAL TESTS IN RELATION TO THE DISCHARGE OF TRADE EFFLUENTS TO SEWERS -- TYPICAL TESTS AND THEIR APPLICATION -- PRETREATMENT REQUIRED TO RENDER TRADE EFFLUENTS ACCEPTABLE INTO SEWERS -- REDUCTION IN VOLUME OF TRADE EFFLUENT -- PRETREATMENT PROCESSES -- CONTROL OF TRADE EFFLUENT DISCHARGES TO SEWERS -- TYPICAL METHODS OF CHARGING FOR TRADE EFFLUENTS -- REFERENCES -- CHAPTER 12. THE EFFECTS OF LIQUID WASTES ON RECEIVING WATERS -- THE LEGAL POSITION -- NATURAL STREAM-WATER. , DOMESTIC SEWAGE -- TRADE-WASTE WATERS -- MINE-WATERS, DRAINAGE FROM COLLIERY SPOIL HEAPS AND COAL-STOCKING GROUNDS -- TOXICITY ROBLEMS ARISING IN RURAL AREAS -- ESTUARINE POLLUTION -- CONCLUSION -- ACKNOWLEDGEMENT -- REFERENCES -- DISCUSSION -- CHAPTER 13. THE SELF-PURIFICATION OF STREAMS AND THE RELATIONSHIP BETWEEN CHEMICAL AND BIOLOGICAL TESTS -- THE PHYSICAL FACTORS - TEMPERATURE -- THE CHEMICAL FACTORS - OXYGEN -- EXPERIMENTAL STUDY OF REOXYGENATION OF PURE RUNNING WATER -- EXPERIMENTAL STUDY OF THE REOXYGENATION OF POLLUTED RUNNING WATER -- SIGNIFICANCE OF LOSS OF NITROGEN DURING SELF-PURIFICATION -- RAPID COLORIMETRIC TESTS FOR NITROGEN -- CORRELATION BETWEEN BIOLOGICAL ANALYSIS AND PHYSICAL AND CHEMICAL ANALYSES OF WATERS POLLUTED BY ORGANIC SUBSTANCES -- THE RIVER GEER-SEASONAL POLLUTION -- RELATIONSHIP BETWEEN ANALYSIS AND THE TOXICOLOGICAL ASSAY -- DISCUSSION -- CHAPTER 14. PRINCIPLES OF VACUUM FILTRATION AND THEIR APPLICATION TO SLUDGE-DRYING PROBLEMS -- CARMAN' N THEORY -- EXPERIMENTAL METHOD -- APPLICATION TO CONDITIONING TREATMENT -- USE OF SPECIFIC RESISTANCE IN PREDICTING YIELDS ON LARGE FILTERS -- USE OF SPECIFIC-RESISTANCE MEASUREMENTS IN RESEARCH -- REFERENCES -- DISCUSSION -- CHAPTER 15. SLUDGE FILTRATION AND DRYING -- SLUDGE PRODUCTION -- NATURE AND COMPOSITION OF SEWAGE SLUDGES -- PRELIMINARY PROCESSES -- METHODS OF FILTRATION -- FILTER-PRESSING -- VACUUM FILTRATION -- DISPOSAL OF FILTER CAKE -- COSTS -- CONCLUSION -- ACKNOWLEDGEMENTS -- DISCUSSION -- CHAPTER 16. COMPOSTING -- FERMENTATION -- MASS COMPOSTING -- SEGREGATION -- PREPARATION OF COMPOSTABLE MATERIALS -- THE USE OF SEWAGE SLUDGE -- MULTI-STAGE COMPOSTING IN VERTICAL SILOS -- ECONOMIC CONSIDERATIONS -- REFERENCES -- DISCUSSION -- CHAPTER 17. THE PRACTICE OF SLUDGE DIGESTION -- SLUDGE DIGESTION -- EFFECT OF TEMPERATURE -- SEEDING AND MIXING -- WATER CONTENT OF SLUDGE. , GAS PRODUCTION AND UTILIZATION -- TANK CAPACITY AND DESIGN FACTORS -- LABORATORY TESTS USED IN CONTROL -- EFFECT OF TOXIC SUBSTANCES -- ACCELERATED PROCESSES -- ANAEROBIC TREATMENT OF INDUSTRIAL WASTES -- REFERENCES -- DISCUSSION -- CHAPTER 18. THE ORIGIN, TREATMENT AND DISPOSAL OF EFFLUENTS IN THE FOOD CANNING AND FREEZING INDUSTRIES -- NATURE AND QUANTITY OF WASTES -- SCREENING -- PRETREATMENT OF WASTES -- FULL TREATMENT -- SPRAY-DISPOSAL -- RE-USE OF WATER -- CONCLUSION -- ACKNOWLEDGEMENTS -- REFERENCES -- DISCUSSION -- CHAPTER 19. THE APPLICATION OF BIOLOGICAL PROCESSES TO THE TREATMENT OF LIQUID TANNERY EFFLUENT -- CONSTITUTION OF TANNERY EFFLUENT -- THE INFLUENCE OF LIME -- INFLUENCE OF CAUSTIC ALKALINITY -- INFLUENCE OF SULPHIDE -- INFLUENCE OF VEGETABLE TANNINS -- INFLUENCE OF TRIVALENT CHROMIUM SALTS -- INFLUENCE OF MINOR CONSTITUENTS -- CONCLUSION -- REFERENCES -- DISCUSSION -- CHAPTER 20. TREATMENT OF WASTE WATERS FROM MILKPRODUCTS FACTORIES -- CHARACTER AND QUANTITY OF WASTE WATERS -- REDUCING THE STRENGTH OF THE WASTE -- BALANCING OF FLOW AND COMPOSITION -- REMOVAL OF SUSPENDED MATTER -- USE OF COAGULANTS -- AEROBIC BIOLOGICAL TREATMENT -- BIOLOGICAL FILTRATION PROCESSES -- AERATION PROCESSES -- ANAEROBIC TREATMENT -- DISPOSAL OF SLUDGES -- DISCHARGE OF WASTE WATERS TO A SEWER -- SUMMARY -- ACKNOWLEDGEMENT -- REFERENCES -- DISCUSSION -- CHAPTER 21. RECLAMATION OF WATER FROM DOMESTIC AND INDUSTRIAL WASTES -- WHAT IS WASTE WATER RECLAMATION? -- LIMITING FACTORS -- USE OF RECLAIMED WATER -- METHODS OF RECLAMATION -- SUMMARY -- REFERENCES -- DISCUSSION -- APPENDIX 1: THE SEPARATION AND COMPOSTING PLANT AT THE CRAIGMILLAR REFUSE-DISPOSAL WORKS OF THE CITY OF EDINBURGH -- APPENDIX 2: LIST OF LECTURERS, PARTICIPANTS ETC. -- AUTHOR INDEX -- SUBJECT INDEX.