Electrodialysis and membrane contactor for recovering plant nutrients from food wastes for bio-based fertilizer applications
- Author
- Francis Kotoka (UGent) , Emile Cornelissen (UGent) , Leonardo Gutierrez (UGent) and Arne Verliefde (UGent)
- Organization
- Abstract
- The relevance of this study applying electrodialysis and membrane contactor to fermented food wastes is their ability to outwit the main difficulties encountered during nutrient separation from fermented food wastes. Thus, the lower concentration of nutrients in the fermented food wastes is elevated by the electrodialysis whereas the membrane contactor selectively separates the volatile fatty acids from the concentrated nutrients, thereby regulating the carbon content. This approach produces nutrient concentrate being tailored for bio-based fertilizer applications, thereby closing the loop of circular bioeconomy. Over 95% of the plant nutrients in food wastes can be simultaneously recovered and concentrated via electrodialysis. To achieved concentrations greater than 5, and 15-fold, the initial feed to permeate volume ratio plays an important role, and must be greater than 5 and 15 due to water flux influenced by osmosis which dilutes the concentrate. Despite the higher concentrations achieved, the electrodialysis is unable to discriminate between the nutrients and the volatile fatty acids in the fermented food wastes, however, the membrane contactor following the electrodialysis discriminates the nutrients and the volatile fatty acids and can selectively separate 47-70% of the fatty acids from the concentrated nutrients, allowing less than 5% of the nutrients to permeate, hence retaining over 95% of the nutrients at the other side. The retained concentrated nutrients have the potential for bio-based fertilizer.
- Keywords
- Food waste, electrodialysis, membrane contactor, nutrients, volatile fatty acids, selective separation, bio-based fertilizer
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-01J65FAPYP8GG5694CXM9EV5C1
- MLA
- Kotoka, Francis, et al. “Electrodialysis and Membrane Contactor for Recovering Plant Nutrients from Food Wastes for Bio-Based Fertilizer Applications.” 10th IWA Membrane Technology Conference & Exhibition for Water and Wastewater Treatment and Reuse, Abstracts, 2023.
- APA
- Kotoka, F., Cornelissen, E., Gutierrez, L., & Verliefde, A. (2023). Electrodialysis and membrane contactor for recovering plant nutrients from food wastes for bio-based fertilizer applications. 10th IWA Membrane Technology Conference & Exhibition for Water and Wastewater Treatment and Reuse, Abstracts. Presented at the 10th IWA Membrane Technology Conference & Exhibition for Water and Wastewater Treatment and Reuse, Washington University, St. Louis Missouri, USA.
- Chicago author-date
- Kotoka, Francis, Emile Cornelissen, Leonardo Gutierrez, and Arne Verliefde. 2023. “Electrodialysis and Membrane Contactor for Recovering Plant Nutrients from Food Wastes for Bio-Based Fertilizer Applications.” In 10th IWA Membrane Technology Conference & Exhibition for Water and Wastewater Treatment and Reuse, Abstracts.
- Chicago author-date (all authors)
- Kotoka, Francis, Emile Cornelissen, Leonardo Gutierrez, and Arne Verliefde. 2023. “Electrodialysis and Membrane Contactor for Recovering Plant Nutrients from Food Wastes for Bio-Based Fertilizer Applications.” In 10th IWA Membrane Technology Conference & Exhibition for Water and Wastewater Treatment and Reuse, Abstracts.
- Vancouver
- 1.Kotoka F, Cornelissen E, Gutierrez L, Verliefde A. Electrodialysis and membrane contactor for recovering plant nutrients from food wastes for bio-based fertilizer applications. In: 10th IWA Membrane Technology Conference & Exhibition for Water and Wastewater Treatment and Reuse, Abstracts. 2023.
- IEEE
- [1]F. Kotoka, E. Cornelissen, L. Gutierrez, and A. Verliefde, “Electrodialysis and membrane contactor for recovering plant nutrients from food wastes for bio-based fertilizer applications,” in 10th IWA Membrane Technology Conference & Exhibition for Water and Wastewater Treatment and Reuse, Abstracts, Washington University, St. Louis Missouri, USA, 2023.
@inproceedings{01J65FAPYP8GG5694CXM9EV5C1,
abstract = {{The relevance of this study applying electrodialysis and membrane contactor to fermented food wastes is
their ability to outwit the main difficulties encountered during nutrient separation from fermented food
wastes. Thus, the lower concentration of nutrients in the fermented food wastes is elevated by the
electrodialysis whereas the membrane contactor selectively separates the volatile fatty acids from the
concentrated nutrients, thereby regulating the carbon content. This approach produces nutrient
concentrate being tailored for bio-based fertilizer applications, thereby closing the loop of circular bioeconomy.
Over 95% of the plant nutrients in food wastes can be simultaneously recovered and concentrated via electrodialysis. To achieved concentrations greater than 5, and 15-fold, the initial feed to permeate volume ratio plays an important role, and must be greater than 5 and 15 due to water flux influenced by osmosis which dilutes the concentrate. Despite the higher concentrations achieved, the electrodialysis is unable to discriminate between the nutrients and the volatile fatty acids in the fermented food wastes, however, the membrane contactor following the electrodialysis discriminates the nutrients and the volatile fatty acids and can selectively separate 47-70% of the fatty acids from the concentrated nutrients, allowing less than 5% of the nutrients to permeate, hence retaining over 95% of the nutrients at the other side. The retained concentrated nutrients have the potential for bio-based fertilizer.}},
author = {{Kotoka, Francis and Cornelissen, Emile and Gutierrez, Leonardo and Verliefde, Arne}},
booktitle = {{10th IWA Membrane Technology Conference & Exhibition for Water and Wastewater Treatment and Reuse, Abstracts}},
keywords = {{Food waste,electrodialysis,membrane contactor,nutrients,volatile fatty acids,selective separation,bio-based fertilizer}},
language = {{eng}},
location = {{Washington University, St. Louis Missouri, USA}},
title = {{Electrodialysis and membrane contactor for recovering plant nutrients from food wastes for bio-based fertilizer applications}},
url = {{https://sites.wustl.edu/mtc2023/program/}},
year = {{2023}},
}