Chapter 2. Biology

  1. Prof. Dr.-Ing. Dieter Deublein1 and
  2. Dipl.-Ing. Angelika Steinhauser2

Published Online: 21 FEB 2008

DOI: 10.1002/9783527621705.ch2c

Biogas from Waste and Renewable Resources: An Introduction

Biogas from Waste and Renewable Resources: An Introduction

How to Cite

Deublein, D. and Steinhauser, A. (eds) (2008) Biology, in Biogas from Waste and Renewable Resources: An Introduction, Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany. doi: 10.1002/9783527621705.ch2c

Editor Information

  1. 1

    Deublein Consulting, International Management, Ritzingerstr. 19, 94469 Deggendorf, Germany

  2. 2

    8, Dover Rise Heritage View, Tower A #11-08, Singapore 138679, Singapore

Publication History

  1. Published Online: 21 FEB 2008
  2. Published Print: 20 FEB 2008

ISBN Information

Print ISBN: 9783527318414

Online ISBN: 9783527621705

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Keywords:

  • biogas;
  • biology;
  • bioreactions;
  • hydrolysis;
  • process parameters

Summary

This chapter contains sections titled:

  • Bioreactions

    • Hydrolysis

    • Acidogenic phase

    • Acetogenic phase

    • Methanogenic phase

  • Process parameters

    • Parameter: hydrogen partial pressure

    • Parameter: concentration of the microorganisms

    • Parameter: type of substrate

    • Parameter: specific surface of material

    • Parameter: disintegration

    • Parameter: cultivation, mixing, and volume load

    • Parameter: light

    • Parameter: temperature

    • Parameter: pH

    • Parameter: redox potential

    • Parameter: nutrients (C/N/P-ratio)

    • Parameter: trace elements

    • Parameter: precipitants (calcium carbonate, MAP, apatite)

    • Parameter: biogas removal

    • Parameter: inhibitors

      • Oxygen

      • Sulfur compounds

      • Organic acids (fatty acids and amino acids)

      • Nitrate (NO3)

      • Ammonium (NH4+) and ammonia (NH3)

      • Heavy metals

      • Tannins

      • Other inhibiting thresholds

    • Parameter: degree of decomposition

    • Parameter: foaming

    • Parameter: scum