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Mathematical modeling is a useful tool for the design, analysis and control of wastewater treatment systems.
The activated sludge process is one of the most common processes used in wastewater treatment, and therefore is a particularly important candidate for the application of mathematical models.
In the 1980s, a task group organized by the International Association on Water Quality (IAWQ) developed a conceptual model of the activated sludge process, which has become an industry-wide standard for the development of computer-based activated sludge models. A recent version of the IAWQ model incorporates 19 components, 17 processes, and numerous rate and stoichiometric coefficients.
It is difficult and costly to quantify all of the necessary coefficients for any given application of the model; consequently, it is important to identify the most critical wastewater and biomass components and the relevant coefficients to be quantified for the most common uses of the model.
It is also important to provide guidance to potential model users on the use of default and/or estimated values for the remaining parameters.
Identification of the ‘Active’ Fraction and Metabolic Pathways in Trace Organic Contaminants Removal Using Stable Isotope Probing
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Assessment of Technology Advancements for Future Energy Reduction
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WWTP Design and Operation Modifications to Improve Management of Biosolids Regrowth, Odors, and Sudden Increase in Indicator Organisms
Available as eBook only
The overall goal of this project was develop approaches to manage the issues of regrowth, odors, and sudden increase (ROSI) of indicator and...
Underground Utility Locating Technology: Synthesis Report
Accurate locations of buried utility infrastructures are very important for utility owners, highway managers and engineers, designers, and contractors. A lack of reliable information on...
An Investigation into Biosolids Sampling and Handling Methods for U.S. EPA-Approved Microbial Detection Techniques
The objective of this research was to develop guidance for collecting samples of biosolids for microbial analysis to ensure representative samples are tested. The types of biosolids products...
Chemical Water and Wastewater Treatment VII
Treating potable and polluted water for the world's population is still one of our most important challenges. The United Nations estimate that more than 1.2 billion people suffer from inadequate...
Protocols to Assess the Breakdown of Flushable Consumer Products
A scientifically sound approach is needed to ensure that flushable consumer products are compatible with household plumbing fixtures, as well as wastewater collection and treatment systems. ...
Linking BMP Systems Performance to Receiving Water Protection: BMP Performance Algorithms
While substantial information exists regarding many of the technical activities associated with developing stormwater management plans and demonstrating regulatory compliance, there is no unified...