Tuning Biological Nutrient Removal Plants


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Author(s): Ken Hartley

Publication Date: 30/04/2013

Pages: 256

Binding: Paperback

ISBN13: 9781780404820

eISBN: 9781780404837

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Tuning Biological Nutrient Removal Plants increases interest in tuning to enhance both performance and capacity, to provide insight into typical plant operating characteristics, and to stimulate operators' interest in studying the behaviour of their own plants. The book focuses on understanding of plant behavioural characteristics so that optimum performance can be achieved and maintained.

The book is carefully organized to cover:

  • influent and effluent characteristics;
  • process fundamentals;
  • individual process characteristics;
  • overall plant characteristics;
  • the evolutionary operation approach to tuning.

The approach is practical and the use of mathematics is kept to a minimum and information is supplied in graphical and tabular form. Real operating data from a wide range of plant experiences is included. The book draws on the generosity of many Australian plant owners in permitting their plant data to be incorporated. Not all process types are covered but the tuning principles expounded are universally applicable.

The capacity and performance capabilities of a plant are not fixed; both are amenable to on-going enhancement through systematic and enthusiastic effort.  The book helps to set new benchmarks in plant operation.

The book is a valuable resource for sewage treatment operations and operations support personnel, sewage process design engineers - operating authorities, consultants, contractors, operators of industrial wastewater treatment plants  and sewage treatment lecturers  in chemical engineering departments and other training organisations.

What is Tuning? Influent and Effluent Characteristics, Flow Characteristics, Mass Loading Characteristics,  Sewer Transformations, Effect of Primary Treatment, Effluent Characteristics; Biological Nutrient Removal - Process Fundamentals, The Basic Process, Kinetics of Biological Processes, Solids Retention Time, Carbon Removal, Nitrogen Removal, Phosphorus Removal, Supplementary Chemical Dosing, Alkalinity and pH, Rules of Thumb; Sludge Settleability, Characterising Settleability, Settling Rates, Factors Affecting Settleability, Effect of SVI on Effluent Quality; BNR Flowsheets; Reactors, Mixing, Aeration, Compartmentalised Reactors, Oxidation Ditches, Membrane Bioreactors, Sequencing Batch Reactors; Secondary Clarifiers, Description, Mass Balances, Operating Diagrams, Effluent Quality, Clarifier Stress Testing; Sludge Processes, Overview, Aerobic Digestion, Sludge Dewatering; Plant Characteristics, Mass Balances, Operational Process Capacity, Capacity Envelopes, Energy Consumption, Automatic Control; Evolutionary Operation, Learning, Application to Sewage Treatment Plants, Long-Term Improvement, EVOP Procedures, Faux-EVOP; A Note on the Statistics of Variability; Chemicals: Useful Properties; Abbreviations       

Ken Hartley

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