Photo-Activated Sludge: A Novel Algal-Bacterial Biotreatment for Nitrogen Removal from Wastewater

 
 
CRC Press
  • erschienen am 7. Dezember 2018
  • |
  • 348 Seiten
 
E-Book | PDF mit Adobe DRM | Systemvoraussetzungen
978-0-429-60883-4 (ISBN)
 

Nitrogen rich wastewaters (10-400 mg N L-1) are usually produced by municipal, industrial and agricultural wastes, such as effluents from anaerobic treatments. These represent a risk to the environment due to the high nutrient concentrations (nitrogen and phosphorous), which can cause eutrophication of water bodies, deteriorating the quality of the ecosystems. As a solution, the potential nitrogen removal capacity of a novel bio-treatment system, namely the Photo-Activated Sludge (PAS), which is composed of microalgae and bacteria consortia, is presented in this thesis. This novel bio-treatment is based on the symbiosis between microalgae, nitrifiers and heterotrophic bacteria (microalgal-bacterial consortia). Experimental work using photobioreactors for the cultivation of microalgae and bacteria under sequencing batch conditions showed that microalgal-bacterial consortia can remove ammonium 50% faster than solely microalgal consortia. The increase in ammonium removal rates was due to the action of nitrifying bacteria, supplied with oxygen produced by algae. Nitrification was the main ammonium removal mechanism within the microalgal-bacterial biomass, followed by algal uptake and nutrient requirements for bacterial growth. Carbon oxidation and denitrification were the main removal mechanisms for organic carbon. Hence, the role of algae within the microalgal-bacterial system is to provide oxygen to support the aerobic processes. The microalgal-bacterial system offers the possibility of reducing the hydraulic retention time, which can decrease the large area requirements often demanded by algal systems.

  • Englisch
  • Milton
  • |
  • Großbritannien
Taylor & Francis Ltd
  • Für höhere Schule und Studium
  • |
  • Für Beruf und Forschung
  • 13041,54 MB
978-0-429-60883-4 (9780429608834)
weitere Ausgaben werden ermittelt

Angelica Rada was born in Santa Marta, Colombia. She is a Civil Engineer (2008) form the Universidad Nacional de Colombia (Bogota). She worked as civil engineer in Colombia in different projects during 2008 and 2010 in the area of hydraulics and environmental technology. In 2012, she successfully completed her MSc. studies on sanitary engineering and municipal water and infrastructure. Angélica enrolled as PhD fellow between 2013 - 2018 in the Environmental Engineering & Water Technology department at UNESCO - IHE, Delft, and Wageningen University. Her PhD research focused on the treatment of ammonium rich wastewater using microalgal-bacterial consortia. Over the past nine years, she has worked with a team of experts on wastewater treatment, environmental technologies, sanitation techniques and civil engineering activities in Colombia and The Netherlands inside and outside academia. This has helped her to develop different abilities on a technical and personal level as a civil and sanitary engineering working in the field of environmental biotechnology.

1 General introduction
1.1 Background
1.2 Problem statement
1.3 Outline of thesis

2 Microalgal-bacterial consortia for wastewater treatment: a review
2.1 Microalgal-bacterial consortia
2.2 Microalgal-bacterial modelling
2.3 Aims of this PhD research

3 Nitrification by microalgal-bacterial consortia for ammonium removal in a flat panel sequencing photobioreactor
3.1 Introduction
3.2 Materials and methods
3.3 Results and discussion
3.4 Conclusions

4 Ammonium removal mechanisms in a microalgal-bacterial sequencing-batch photobioreactor at different SRT
4.1 Introduction
4.2 Materials and methods
4.3 Results and Discussion
4.4 Conclusions

5 Modelling of nitrogen removal using a microalgal-bacterial consortium
5.1 Introduction
5.2 Materials and Methods
5.3 Results and Discussion
5.4 Conclusions

6 Modelling of nitrogen removal using a microalgal-bacterial consortium under different SRTs
6.1 Introduction
6.2 Materials and Methods
6.3 Results and discussion
6.4 Conclusions

7 Respirometric tests for microalgal-bacterial biomass: modelling of nitrogen storage by microalgae
7.1 Introduction
7.2 Materials and Methods
7.3 Results and discussion
7.4 Conclusions

8 Conclusions and recommendations
8.1 Introduction
8.2 Advantages of microalgal-bacterial consortia for ammonium removal
8.3 Influence of the SRT on the operation of a microalgal-bacterial photobioreactor
8.4 Evaluation of the microalgal-bacterial consortia using mathematical models
8.5 Outlook and concluding remarks

Appendices

Dateiformat: PDF
Kopierschutz: Adobe-DRM (Digital Rights Management)

Systemvoraussetzungen:

Computer (Windows; MacOS X; Linux): Installieren Sie bereits vor dem Download die kostenlose Software Adobe Digital Editions (siehe E-Book Hilfe).

Tablet/Smartphone (Android; iOS): Installieren Sie bereits vor dem Download die kostenlose App Adobe Digital Editions (siehe E-Book Hilfe).

E-Book-Reader: Bookeen, Kobo, Pocketbook, Sony, Tolino u.v.a.m. (nicht Kindle)

Das Dateiformat PDF zeigt auf jeder Hardware eine Buchseite stets identisch an. Daher ist eine PDF auch für ein komplexes Layout geeignet, wie es bei Lehr- und Fachbüchern verwendet wird (Bilder, Tabellen, Spalten, Fußnoten). Bei kleinen Displays von E-Readern oder Smartphones sind PDF leider eher nervig, weil zu viel Scrollen notwendig ist. Mit Adobe-DRM wird hier ein "harter" Kopierschutz verwendet. Wenn die notwendigen Voraussetzungen nicht vorliegen, können Sie das E-Book leider nicht öffnen. Daher müssen Sie bereits vor dem Download Ihre Lese-Hardware vorbereiten.

Bitte beachten Sie bei der Verwendung der Lese-Software Adobe Digital Editions: wir empfehlen Ihnen unbedingt nach Installation der Lese-Software diese mit Ihrer persönlichen Adobe-ID zu autorisieren!

Weitere Informationen finden Sie in unserer E-Book Hilfe.


Download (sofort verfügbar)

47,99 €
inkl. 19% MwSt.
Download / Einzel-Lizenz
E-Book bestellen