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20250203014804.0 |
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231222s2001 xx ||||| 00| ||eng c |
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|a pubmed25n0390.xml
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|a (DE-627)NLM116923601
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|a (NLM)11804088
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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 Szögi, A A
|e verfasserin
|4 aut
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|a Distribution of ammonium-N in the water-soil interface of a surface-flow constructed wetland for swine wastewater treatment
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|c 2001
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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| 338 |
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 25.06.2002
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|a Date Revised 16.11.2017
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|a published: Print
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|a Citation Status MEDLINE
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|a Most livestock wastewaters treated in constructed wetlands are typically rich in ammonium N. The objective of this study was to evaluate the soil-water ammonium distribution and the diffusive flux through the soil-water interface. Wetland system 1 (WS1) was planted to rush and bulrushes, and wetland system 2 (WS2) was planted to bur-reed and cattails. Nitrogen was applied at a rate of 2.5 g m(-2) d(-1). Interstitial soil water was sampled at 9, 24, 50, and 70 m from the inlet. In both wetlands, we found that NH4+ diffusion gradient and N losses were highest in the wetland system with lowest water depth. From other studies, we knew that shallower depths may have promoted a more effective interfacing of nitrifying and denitrifying environments. In turn, this N reduction in the water column may be the reason for steady NH4+-N upward diffusion fluxes. The assumed mechanism for N removal has been nitrification and denitrification but ammonia volatilization could also have occurred. Although diffusion may explain a significant portion of the material transport between the soil-water interface, the large differences in concentrations between outlet and inlet need further explanation
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|a Journal Article
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|a Manure
|2 NLM
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| 650 |
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|a Quaternary Ammonium Compounds
|2 NLM
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| 650 |
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7 |
|a Soil
|2 NLM
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| 650 |
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|a Nitrogen
|2 NLM
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| 650 |
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|a N762921K75
|2 NLM
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| 700 |
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|a Hunt, P G
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 44(2001), 11-12 vom: 31., Seite 157-62
|w (DE-627)NLM098149431
|x 0273-1223
|7 nnns
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| 773 |
1 |
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|g volume:44
|g year:2001
|g number:11-12
|g day:31
|g pages:157-62
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| 912 |
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|a GBV_USEFLAG_A
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| 912 |
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| 912 |
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|a GBV_ILN_350
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| 951 |
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|a AR
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| 952 |
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|d 44
|j 2001
|e 11-12
|b 31
|h 157-62
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