Resumé
The mobilization of arsenic (As) to the groundwater was studied in a shallow Holocene aquifer on the Red River flood plain near Hanoi, Vietnam. Results show an anoxic aquifer featuring organic carbon decomposition with redox zonation dominated by the reduction of Fe-oxides and methanogenesis. The concentration of As increases over depth to a concentration of up to 550 μg/L. Most As is present as As(III) but some As(V) is always found.
Arsenic correlates well with NH4, relating its release to organic matter decomposition and the
source of As appears to be the Fe-oxides being reduced
Arsenic correlates well with NH4, relating its release to organic matter decomposition and the
source of As appears to be the Fe-oxides being reduced
Originalsprog | Engelsk |
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Titel | ATV Jord og Grundvand: Arsen i grundvand og drikkevand |
Forlag | ATV-Fonden for Jord og Grundvand |
Sider | 35-44 |
Antal sider | 10 |
Status | Udgivet - 2007 |
Udgivet eksternt | Ja |
Begivenhed | ATV-møde: Arsen i grundvand og drikkevand 2007 - Helnan Marselis Hotel, Århus, Danmark Varighed: 3 okt. 2007 → 3 okt. 2007 |
Konference
Konference | ATV-møde: Arsen i grundvand og drikkevand 2007 |
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Land/Område | Danmark |
By | Århus |
Periode | 3/10/07 → 3/10/07 |
Programområde
- Programområde 2: Vandressourcer