LAPSE:2021.0515
Published Article
LAPSE:2021.0515
Nitrogen Recovery from Swine Manure Using a Zeolite-Based Process
June 10, 2021
Intensive pig farming produces huge amounts of swine manure, which can cause regional nutrient imbalances and represent a potential source of soil and water pollution due to manure over-application. In order to improve nutrient stewardship, technologies for manure treatment and selective recovery of nutrients (especially ammonia) have to be developed to foster agriculture−food system sustainability. In the present study, a combined stripping and ion exchange process using natural zeolite (ion-exchanger-loop-stripping process) is tested for nitrogen recovery from swine manure to determine its technical feasibility in this novel field of application. Ammonium removal rates of 85 to 96% were achieved in pilot scale experiments with preprocessed manure (~500 L h−1 after mechanical filtration; input concentration: ~1.3 g NH4+ L−1). NH4+ was successfully transferred to a concentrated ammonium sulfate solution (final concentration: 66 g NH4+ L−1), with no significant transfer of other manure components. Hence, various utilizations of the product solution are possible, e.g., for industrial off-gas cleaning (DeNOx) or as raw material for fertilizer production. Based on these findings, the ILS-process can be regarded as a promising option for nitrogen recovery from swine manure.
Record ID
Keywords
manure processing, nutrient recovery, sustainable agriculture
Suggested Citation
Ellersdorfer M, Pesendorfer S, Stocker K. Nitrogen Recovery from Swine Manure Using a Zeolite-Based Process. (2021). LAPSE:2021.0515
Author Affiliations
Ellersdorfer M: Montanuniversität Leoben, Chair of Process Technology and Industrial Environmental Protection, 8700 Leoben, Austria [ORCID]
Pesendorfer S: Montanuniversität Leoben, Chair of Process Technology and Industrial Environmental Protection, 8700 Leoben, Austria
Stocker K: Montanuniversität Leoben, Chair of Resource Mineralogy, 8700 Leoben, Austria
Pesendorfer S: Montanuniversität Leoben, Chair of Process Technology and Industrial Environmental Protection, 8700 Leoben, Austria
Stocker K: Montanuniversität Leoben, Chair of Resource Mineralogy, 8700 Leoben, Austria
Journal Name
Processes
Volume
8
Issue
11
Article Number
E1515
Year
2020
Publication Date
2020-11-21
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr8111515, Publication Type: Journal Article
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Published Article
LAPSE:2021.0515
This Record
External Link
doi:10.3390/pr8111515
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Version History
[v1] (Original Submission)
Jun 10, 2021
Verified by curator on
Jun 10, 2021
This Version Number
v1
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URL Here
https://psecommunity.org/LAPSE:2021.0515
Original Submitter
Calvin Tsay
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