2005-11-01. Evaluering af nul-valent jern til ... - NorthPestClean
2005-11-01. Evaluering af nul-valent jern til ... - NorthPestClean
2005-11-01. Evaluering af nul-valent jern til ... - NorthPestClean
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4.4.2 Høstforsøg ....................................................................................................................43<br />
5 RESULTATER OG DISKUSSION........................................................................................44<br />
5.1 KOLONNEFORSØG ................................................................................................................44<br />
5.1.1 Toksicitet <strong>af</strong> <strong>jern</strong>et........................................................................................................44<br />
5.1.2 Indledende forsøg med vand fra høfde 42 området......................................................44<br />
5.1.3 Toksicitet <strong>af</strong> H42 vandet...............................................................................................46<br />
5.1.4 Sporstofforsøg ..............................................................................................................47<br />
5.1.5 Modelforsøg med 14 C mærket methyl parathion ..........................................................49<br />
5.1.6 Afsluttende kolonneforsøg............................................................................................55<br />
5.1.7 Sorption og mineral udfældning...................................................................................62<br />
5.1.8 Æstetik..........................................................................................................................64<br />
5.2 BATCHFORSØG .....................................................................................................................64<br />
5.2.1 Toksicitet <strong>af</strong> <strong>jern</strong>et........................................................................................................64<br />
5.2.1 Indledende forsøg.........................................................................................................64<br />
5.2.3 Høstforsøg ....................................................................................................................66<br />
5.2.4 Æstetik..........................................................................................................................73<br />
5.3 OPSAMLENDE DISKUSSION OG PERSPEKTIVERING.................................................................74<br />
5.3.1 Egnethed <strong>af</strong> en permeabel reaktiv <strong>jern</strong>væg som <strong>af</strong>værgemetode på feltlokaliteten .....74<br />
5.3.2 Dimensionering <strong>af</strong> den permeable reaktive <strong>jern</strong>væg....................................................76<br />
5.3.3 Behandling <strong>af</strong> hotspots med <strong>jern</strong>partikler....................................................................80<br />
5.3.4 Anvendelse <strong>af</strong> <strong>nul</strong>-<strong>valent</strong> <strong>jern</strong> sammenlignet med andre in situ <strong>af</strong>værgemetoder........83<br />
6 KONKLUSION ........................................................................................................................86<br />
7 REFERENCER ........................................................................................................................88<br />
8 BILAGSOVERSIGT................................................................................................................93<br />
6