Biological wastewater treatment processes: mass and heat by Davide Dionisi PDF

By Davide Dionisi

ISBN-10: 1482229269

ISBN-13: 9781482229264

ISBN-10: 1482229277

ISBN-13: 9781482229271

"The e-book describes how you can use kinetic types in accordance with the idea that of biomass development and progress stoichiometry to simulate, layout and optimize organic wastewater therapy tactics. the overall procedure utilized in the ebook is to jot down cost equations for some of the techniques happening and coupling them with mass balances particular for every approach. The ensuing process of non linear equations or of differential Read more...

summary: "The booklet describes tips to use kinetic versions according to the concept that of biomass development and progress stoichiometry to simulate, layout and optimize organic wastewater remedy methods. the final method utilized in the ebook is to write down price equations for a number of the procedures happening and coupling them with mass balances particular for every procedure. The ensuing method of non linear equations or of differential equation is then solved utilizing Microsoft Excel. via various the values of the layout variables, the method is designed, simulated and optimized. as well as the normal layout variables akin to reactor quantity, substrate removing, extra sludge creation, specific concentration is given within the publication to pH calculation, that is really very important for nitrogen elimination and anaerobic procedures. The ebook additionally exhibits how this modeling technique might be utilized to express case reports said within the literature."

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Attached growth processes are particularly interesting for anaerobic processes, because the biomass concentration can be quite high due to the high concentration of the feed, and therefore solid–liquid separation using sedimentation or even membranes could be problematic. 14 Anaerobic digestion process with completely mixed tank and no solid–liquid separation. e. 14). 15). Differently than for the previous case, in this case the solid and the liquid phase are separated before the liquid and the gas exit the reactor.

4 Conceptual scheme of microbial growth. from nitrate reduction. When no external electron acceptors are present (anaerobic conditions), the metabolism of organic substances generates organic products, that is, acetic acid, ethanol, lactic acid and many others. 17) + (carbon products) + (CO2 ) + (H2 O) In this book, we will focus mainly on the following categories of microorganisms, which are the most important in biological treatment processes. Oxygen- or nitrate-consuming heterotrophs: These microorganisms use organic carbon as substrate and use oxygen or nitrate as external electron acceptor.

For the Anammox process, the main disadvantage is that only very few species of microorganisms are able to carry out ammonia oxidation using nitrite and therefore requires very careful selection of the inoculum and of the reaction conditions. The Anammox process is also very sensitive to the presence of inhibitors in the wastewater. 8 GENERAL ASSUMPTIONS MADE IN THIS BOOK In this book we will make several assumptions, with the aim of simplifying the notation, the modelling and the mass balances.

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Biological wastewater treatment processes: mass and heat balances by Davide Dionisi


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