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Side by Side Comparison of a Vegetated Filter Strip and a Flow Path Treating Constructed Wetland Effluent Receiving Cattle Manure Runoff in Eastern Ontario
Authors: Maria Juliana Mejia Franco, Christopher Kinsley, Robert Delatolla
Identifier: CSBE21466
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Published in: CSBE-SCGAB Technical Conferences » 5th CIGR and AGM Quebec City 2021 » Regular Sessions
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Description: Various studies indicate that vegetative filters are effective and potentially acceptable treatment alternatives for livestock operations. Seven months of data from a vegetated filter strip (VFS) and a flow path (FP) receiving pretreated beef manure pile and exercise yard runoff from a constructed wetland were used to compare their performance removing Chemical Oxygen Demand (COD), Ammonia (NH4+- N), Nitrate (NO3- - N) and Orthophosphate (PO43- - P) from water. The stored effluent from the constructed wetland was dosed to both types of infiltration systems at six different loading rates (1.7, 2.5, 3.0, 3.4, 5.0, 6.6 cm/d). The objectives of the study were to evaluate and compare the performance of a VFS and a FP in removing nutrients and organic matter from pretreated beef farm runoff, and to recommend design loading rates. HLR and influent concentration did not appear to be significant factors affecting final concentration reductions in the VFS for any of the constituents analysed. Removal efficiency in the VFS was greater than 90% for COD, 95% for NH4+, 90% for NO3 , and 94% for PO43-, whereas removal efficiency in the FP was greater than 73% for COD, 87% for NH4+, 36% for NO3 , and 55% for PO43-. This experiment suggests that even relatively small VFSs or short FPs can markedly improve quality of runoff from livestock operations, and that it is possible to achieve significant mass and concentration removals if they are properly operated and maintained in conjunction with a pre-treatment system.
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Date: 2021-06-11
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Conference name: 5th CIGR International Conference and CSBE-SCGAB AGM 2021, Quebec City,QC, 11-14 May 2021.
Session name: Waste Management 2 - Animal Waste & Treatment
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Type: Text.Abstract
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Publication type: Presentation
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Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
DOI:
Description: Various studies indicate that vegetative filters are effective and potentially acceptable treatment alternatives for livestock operations. Seven months of data from a vegetated filter strip (VFS) and a flow path (FP) receiving pretreated beef manure pile and exercise yard runoff from a constructed wetland were used to compare their performance removing Chemical Oxygen Demand (COD), Ammonia (NH4+- N), Nitrate (NO3- - N) and Orthophosphate (PO43- - P) from water. The stored effluent from the constructed wetland was dosed to both types of infiltration systems at six different loading rates (1.7, 2.5, 3.0, 3.4, 5.0, 6.6 cm/d). The objectives of the study were to evaluate and compare the performance of a VFS and a FP in removing nutrients and organic matter from pretreated beef farm runoff, and to recommend design loading rates. HLR and influent concentration did not appear to be significant factors affecting final concentration reductions in the VFS for any of the constituents analysed. Removal efficiency in the VFS was greater than 90% for COD, 95% for NH4+, 90% for NO3 , and 94% for PO43-, whereas removal efficiency in the FP was greater than 73% for COD, 87% for NH4+, 36% for NO3 , and 55% for PO43-. This experiment suggests that even relatively small VFSs or short FPs can markedly improve quality of runoff from livestock operations, and that it is possible to achieve significant mass and concentration removals if they are properly operated and maintained in conjunction with a pre-treatment system.
Keywords:
Résumé:
Mots-clés:
Citation:
Volume:
Issue:
Pages -
Contributor:
Date: 2021-06-11
Technical field:
Conference name: 5th CIGR International Conference and CSBE-SCGAB AGM 2021, Quebec City,QC, 11-14 May 2021.
Session name: Waste Management 2 - Animal Waste & Treatment
Other information:
Type: Text.Abstract
Format:
Publication type: Presentation
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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