Results have shown the persistence of PCE in deionized water, which allowed to
evaluate its solubility (169 Æ 7 mg L
À1 at 12
C). The association DT+nZVI was
established to be more powerful than DT or nZVI alone, probably due to a synergetic
concerted mechanism. GC analyses suggested that the combination DT+nZVI led to
minimize the formation of chlorinated intermediate species, which represents a
significant advantage for in situ groundwater treatments.
Fig. 6.6 Complete experimental device of percolation (feed bottles with reagents and pollutants,
pumps, columns, flow-through-system carrying the monitoring probes), placed in air-conditioned
cupboard
Fig. 6.7 Setup and apparatuses for the monitoring of the physical and chemical parameters of the
column output water and geophysical electrical measurements into the column (and over the length
of the column)
342
R. Rodrigues et al.
evaluate its solubility (169 Æ 7 mg L
À1 at 12
C). The association DT+nZVI was
established to be more powerful than DT or nZVI alone, probably due to a synergetic
concerted mechanism. GC analyses suggested that the combination DT+nZVI led to
minimize the formation of chlorinated intermediate species, which represents a
significant advantage for in situ groundwater treatments.
Fig. 6.6 Complete experimental device of percolation (feed bottles with reagents and pollutants,
pumps, columns, flow-through-system carrying the monitoring probes), placed in air-conditioned
cupboard
Fig. 6.7 Setup and apparatuses for the monitoring of the physical and chemical parameters of the
column output water and geophysical electrical measurements into the column (and over the length
of the column)
342
R. Rodrigues et al.