Thermodynamic modelling is needed to describe the effect of high temperature on microbial nitrogen removal processes

K. A. Ismail, M. Patón, J. Rodríguez

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

1 Scopus citations

Abstract

Existing models of nitrogen removal and related microbial reactions in conventional wastewater treatment plants are capable of describing most of the relevant behaviour of these plants. These models may however fall short on describing the effects of temperature on the microbial activity including the inhibition of nitrite oxidation. In this work a detailed model is presented incorporating the most and also some of the less commonly observed microbial nitrogen reaction pathways. The model calculates thermodynamic variables dynamically based on the dynamic concentrations. This allows for a detailed dynamic analysis of the thermodynamic feasibility of all reactions and of the effects of temperature. The results indicate that the well-known inhibition of nitrite oxidation at high temperature is caused by thermodynamic limitations.

Original languageBritish English
Title of host publicationLecture Notes in Civil Engineering
PublisherSpringer
Pages37-42
Number of pages6
DOIs
StatePublished - 2017

Publication series

NameLecture Notes in Civil Engineering
Volume4
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Keywords

  • Nitrogen removal
  • Sewage treatment
  • Temperature effect
  • Thermodynamics

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