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Fate of macronutrients in water treatment of digestate using vibrating reversed osmosis

Céline Vaneeckhaute UGent, Erik Meers UGent, Evi Michels UGent, Patrick Christiaens and Filip Tack UGent (2012) WATER AIR AND SOIL POLLUTION. 223(4). p.1593-1603
abstract
In the transition from a fossil to a bio-based economy, it has become an important challenge to maximally recuperate and recycle valuable nutrients coming from manure and digestate processing. Membrane filtration is a suitable technology to separate valuable nutrients in easily transportable concentrates which could potentially be re-used as green fertilizers, in the meantime producing high quality water. However, traditional membrane filtration systems often suffer technical problems in waste stream treatment. The aim of this study was to evaluate the performance of vibratory shear enhanced processing (VSEP) in the removal of macronutrients (N, P, K, Na, Ca, Mg) from the liquid fraction of digestates, reducing their concentrations down to dischargeable/re-usable water. In addition, the re-use potential of VSEP-concentrates as sustainable substitutes for fossil-based mineral fertilizers was evaluated. Removal efficiencies for N and P by two VSEP filtration steps were high, though not sufficient to continuously reach the Flemish legislation criteria for discharge into surface waters (15 mg N l(-1) and 2 mg P l(-1)). Additional purification can occur in a subsequent lagoon, yet further optimization of the VSEP filtration system is advised. Furthermore, concentrates produced by one membrane filtration step showed potential as N-K fertilizer with an economic value of a,not sign6.3 +/- 1.1 t(-1) fresh weight (FW). Further research is, however, required to evaluate the impact on crop production and soil quality by application of these new potential green fertilizers.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
Anaerobic digestion, Vibrating membrane filtration, Digestate processing, Water quality, Nutrient recycling, Green fertilizers, PIG MANURE, FILTRATION, NANOFILTRATION, POTASSIUM, SYSTEMS, MILK
journal title
WATER AIR AND SOIL POLLUTION
Water Air Soil Pollut.
volume
223
issue
4
pages
1593 - 1603
Web of Science type
Article
Web of Science id
000303385800012
JCR category
WATER RESOURCES
JCR impact factor
1.748 (2012)
JCR rank
27/80 (2012)
JCR quartile
2 (2012)
ISSN
0049-6979
DOI
10.1007/s11270-011-0967-6
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1932643
handle
http://hdl.handle.net/1854/LU-1932643
date created
2011-10-19 09:38:38
date last changed
2012-09-27 16:46:36
@article{1932643,
  abstract     = {In the transition from a fossil to a bio-based economy, it has become an important challenge to maximally recuperate and recycle valuable nutrients coming from manure and digestate processing. Membrane filtration is a suitable technology to separate valuable nutrients in easily transportable concentrates which could potentially be re-used as green fertilizers, in the meantime producing high quality water. However, traditional membrane filtration systems often suffer technical problems in waste stream treatment. The aim of this study was to evaluate the performance of vibratory shear enhanced processing (VSEP) in the removal of macronutrients (N, P, K, Na, Ca, Mg) from the liquid fraction of digestates, reducing their concentrations down to dischargeable/re-usable water. In addition, the re-use potential of VSEP-concentrates as sustainable substitutes for fossil-based mineral fertilizers was evaluated. Removal efficiencies for N and P by two VSEP filtration steps were high, though not sufficient to continuously reach the Flemish legislation criteria for discharge into surface waters (15 mg N l(-1) and 2 mg P l(-1)). Additional purification can occur in a subsequent lagoon, yet further optimization of the VSEP filtration system is advised. Furthermore, concentrates produced by one membrane filtration step showed potential as N-K fertilizer with an economic value of a,not sign6.3 +/- 1.1 t(-1) fresh weight (FW). Further research is, however, required to evaluate the impact on crop production and soil quality by application of these new potential green fertilizers.},
  author       = {Vaneeckhaute, C{\'e}line and Meers, Erik and Michels, Evi and Christiaens, Patrick and Tack, Filip},
  issn         = {0049-6979},
  journal      = {WATER AIR AND SOIL POLLUTION},
  keyword      = {Anaerobic digestion,Vibrating membrane filtration,Digestate processing,Water quality,Nutrient recycling,Green fertilizers,PIG MANURE,FILTRATION,NANOFILTRATION,POTASSIUM,SYSTEMS,MILK},
  language     = {eng},
  number       = {4},
  pages        = {1593--1603},
  title        = {Fate of macronutrients in water treatment of digestate using vibrating reversed osmosis},
  url          = {http://dx.doi.org/10.1007/s11270-011-0967-6},
  volume       = {223},
  year         = {2012},
}

Chicago
Vaneeckhaute, Céline, Erik Meers, Evi Michels, Patrick Christiaens, and Filip Tack. 2012. “Fate of Macronutrients in Water Treatment of Digestate Using Vibrating Reversed Osmosis.” Water Air and Soil Pollution 223 (4): 1593–1603.
APA
Vaneeckhaute, C., Meers, E., Michels, E., Christiaens, P., & Tack, F. (2012). Fate of macronutrients in water treatment of digestate using vibrating reversed osmosis. WATER AIR AND SOIL POLLUTION, 223(4), 1593–1603.
Vancouver
1.
Vaneeckhaute C, Meers E, Michels E, Christiaens P, Tack F. Fate of macronutrients in water treatment of digestate using vibrating reversed osmosis. WATER AIR AND SOIL POLLUTION. 2012;223(4):1593–603.
MLA
Vaneeckhaute, Céline, Erik Meers, Evi Michels, et al. “Fate of Macronutrients in Water Treatment of Digestate Using Vibrating Reversed Osmosis.” WATER AIR AND SOIL POLLUTION 223.4 (2012): 1593–1603. Print.