Available as an ebook
Please purchase via www.iwaponline.comOpens in new window
Also part of Water Intelligence Online Digital Reference Library
Standard ePrice: £107.00
+ VAT
The Activated Sludge (AS) Process is old technology but is still widely adopted worldwide for its convenience and simplicity: an impressive number (many hundred of thousands) of this kind of system are in operation.
Occasionally, problems such as bulking and foaming occur, causing regulation violations and large investment is often required immediately to control them. For this reason, an intense research effort has been made during the last few decades to face these problems, and this report details the work undertaken by the IWA Specialist Group on Activated Sludge Population Dynamics.
This Scientific and Technical Report describes the main reasons fslyuor the growth of the different filamentous microorganisms in activated sludge, and the biological molecular tools available today for the identification of the main biomass components. The wide range of experiences around the world is documented and the methods to avoid the proliferation of these organisms are presented and critically reviewed.
Activated Sludge Separation Problems consists of seven chapters, presenting up-to-date technical and scientific aspects of these processes.
Scientific and Technical Report No. 16
Secondary Settling Tanks
Although developments in wastewater treatment over recent decades have focused on the biological reactor, the secondary settling tank (SST) also plays a major role in achieving increasingly...
Sampling for Measurement of Odours
Research into the sampling and measurement of odours has developed in a number of sectors, especially the agriculture, food and process industries, with knowledge from each sector being...
River Water Quality Model No.1
This Scientific and Technical Report (STR) presents the findings of the IWA Task Group on River Water Quality Modelling (RWQM) in a critical evaluation of the current state of the practice in...
Anaerobic Digestion Model No.1 (ADM1)
The IWA Task Group for Mathematical Modelling of Anaerobic Digestion Processes was created with the aim to produce a generic model and common platform for dynamic simulations of a variety of...
Handbook of Biological Wastewater Treatment: Second Edition
The scope of this comprehensive new edition of Handbook of Biological Wastewater Treatment ranges from the design of the activated sludge system, final settlers, auxiliary units (sludge...
Gathering Unpublished Data for Chemicals Detected in Biosolids
Available as eBook only
The Water Environment Research Foundation (WERF) commissioned a study to assemble high quality, unpublished data on 61 trace organic chemicals (...
Evaluation of Microbial Risk Assessment Techniques and Applications
This investigation reviewed and evaluated methodologies used for microbial risk assessment with respect to their applicability for reclaimed water applications. The investigation was comprised of...
Determine the Effect of Individual Wastewater Characteristics and Variances on Primary Clarifier Performance
The Water Environment Research Foundation sponsored a one-year study quantifying the effect of certain wastewater characteristics and their variability on the performance of primary clarifiers. ...