[N+]([O-])([O-])=O.[Ca+2].[N+]([O-])([O-])=O.[C:10]1([CH3:16])[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1.[CH3:17][C:18]1[CH:19]=[CH:20][C:21]([CH3:24])=[CH:22][CH:23]=1>ClCCl>[CH2:16]([C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1)[CH3:17].[CH2:17]([C:18]1[CH:23]=[CH:22][C:21]([CH3:24])=[CH:20][CH:19]=1)[CH3:10]Pilot-scale treatments also support the laboratory incubations. The addition of calcium nitrate to the sediments of the Dofasco Boatslip in 1992 resulted in the biodegradation of several organic compounds (mean of three samples, reductions as follows; toluene 80%, ethylbenzene 86%, m/p-xylene 76%, 3/4-ethyltoluene 89%, and dichloromethane 65%) (FIG. 29). These relatively rapid biodegradation rates are similar to those reported in laboratory studies where nitrate was added to enhance biodegradation (Hutchins 1991).
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