In situ treatment of Hamilton Harbour sediment

✍ Scribed by Murphy, T. ;Moller, A. ;Brouwer, H.

• Book ID: 104626973
• Publisher: Springer-Verlag
• Year: 1995
• Tongue: English
• Weight: 807 KB
• Volume: 4
• Category: Article
• ISSN: 0925-1014
• DOI: 10.1007/bf00116654

✦ Synopsis

To enhance the biodegradation of organic contaminants, approximately 18.5 tonnes of oxidant (calcium nitrate) and 5 tonnes of nutrients were injected into sediments of the Dofasco Boatslip, Hamilton Harbour. In the laboratory 78% and 68% of the oil (TPHs) and polynuclear aromatic hydrocarbons (PAHs), respectively biodegraded in 197 days. In the 1992 treatment in the Ddofasco Boatslip, biodegradation of organic contaminants varied from 79% for low molecular weight compounds (BTXs), to 25/15 of the 16 priority pollutant PAHs. At first biodegraduation of large molecular weight PAHs resulted in the production of naphthalene (from 280/zg/g to 549 #g/g). In the 1993 treatments, 94% of the naphthalene, and 57% of the TPHs biodegraded. The in situ biotreatment of organic contamination takes time but for some sites the significantly lower cost relative to dredging and confinement makes in situ treatment a viable alternative.