Granulation of anammox microorganisms for autotrophic nitrogen removal from wastewater

Excessive discharge of nutrients in waters induces pollution such as such as eutrophication. Conventional methods to treat waters are expensive. Alternatively, anaerobic ammonium oxidation, termed “anammox”, has been recently developped with benefits such as low sludge production, 50% less aeration...

Full description

Saved in:
Bibliographic Details
Published in:Environmental chemistry letters 2018-09, Vol.16 (3), p.881-901
Main Authors: Manonmani, U., Joseph, Kurian
Format: Article
Language:English
Subjects:
Aeration
Ammonium
Ammonium compounds
Ammonium nitrogen
Anaerobic treatment
Analytical Chemistry
Autotrophic microorganisms
Bacteria
Bioreactors
Earth and Environmental Science
Ecotoxicology
Emissions control
Environment
Environmental Chemistry
Eutrophication
Extracellular
Geochemistry
Granular materials
Granulation
Greenhouse effect
Greenhouse gases
Growth rate
Hydraulic retention time
Hydrodynamics
Microorganisms
Mineral nutrients
Nitrogen removal
Nutrients
Oxidation
Pollution
Polysaccharides
Power consumption
Proteins
Removal
Retention
Retention time
Review
Saccharides
Sludge
Wastewater
Wastewater treatment
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Excessive discharge of nutrients in waters induces pollution such as such as eutrophication. Conventional methods to treat waters are expensive. Alternatively, anaerobic ammonium oxidation, termed “anammox”, has been recently developped with benefits such as low sludge production, 50% less aeration demand, no external carbon supply, 60% less power consumption, and 90% reduction of greenhouse gas emissions. However, anammox is limited by long start-up periods due to the low growth rate of anammox bacteria. This issue can be solved by complete retention of biomass by reactor modification or by formation of anammox granules. This article reviews the mechanisms of anammox granulation and biogranulation models. We present factors involved in the granulation processes such as hydrodynamic shear force, extracellular polymeric substances, hydraulic retention time, seed sludge and bioreactors. We also discuss the interaction of proteins and polysaccharides in anammox granules.
ISSN:1610-3653
1610-3661
DOI:10.1007/s10311-018-0732-9