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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1080/09593330.2017.1407364
|2 doi
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|a pubmed25n0927.xml
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|a (DE-627)NLM278233376
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|a (NLM)29157153
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Sellner, Bjorn M
|e verfasserin
|4 aut
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|a Evaluation of industrial by-products and natural minerals for phosphate adsorption from subsurface drainage
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 09.09.2019
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|a Date Revised 09.09.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Agricultural subsurface drainage has been recognized as an important pathway for phosphorus transport from soils to surface waters. Reactive permeable filters are a promising technology to remove phosphate from subsurface drainage. Three natural minerals (limestone, zeolite, and calcite) and five industrial by-products (steel slag, iron filings, and three recycled steel by-products) were evaluated for phosphate removal from subsurface drainage using batch adsorption experiments. Phosphate adsorption onto these materials was characterized by Langmuir isotherm and second-order kinetic models. The adsorption capacities increased by factors of 1.2-2.5 when temperature was increased from 5°C to 30°C. Industrial by-products exhibited phosphate adsorption capacities that were one order of magnitude higher than natural minerals. Medium-sized steel chips exhibited high phosphate adsorption capacities (1.64-3.38 mg/g) across different temperatures, pH values, organic matter concentrations, and real drainage water matrixes. The strong chemical bonds between phosphate and steel by-products prevented the release of adsorbed phosphate back to the solution. The steel by-product filter can be paired with a woodchip bioreactor for nitrate and phosphate removal. It is suggested that the phosphate filter be connected to a woodchip bioreactor after the startup phase to minimize the impact of dissolved organic matter on phosphate adsorption. The results of this study suggest that the low-cost steel by-products examined could be used as effective adsorption media for phosphate removal from subsurface drainage
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|a Journal Article
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|a Phosphate
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|a adsorption
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|a natural minerals
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|a steel by-products
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|a subsurface drainage
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|a Nitrates
|2 NLM
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| 650 |
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|a Phosphates
|2 NLM
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| 650 |
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|a Steel
|2 NLM
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7 |
|a 12597-69-2
|2 NLM
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| 650 |
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|a Phosphorus
|2 NLM
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| 650 |
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7 |
|a 27YLU75U4W
|2 NLM
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| 700 |
1 |
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|a Hua, Guanghui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ahiablame, Laurent M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Trooien, Todd P
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hay, Christopher H
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kjaersgaard, Jeppe
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Environmental technology
|d 1993
|g 40(2019), 6 vom: 01. Feb., Seite 756-767
|w (DE-627)NLM098202545
|x 1479-487X
|7 nnns
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| 773 |
1 |
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|g volume:40
|g year:2019
|g number:6
|g day:01
|g month:02
|g pages:756-767
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|u http://dx.doi.org/10.1080/09593330.2017.1407364
|3 Volltext
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