Binding of polycyclic aromatic hydrocarbons by size classes of particulate in Hamilton Harbor water

Article Abstract:

A study finds that the polycyclic aromatic hydrocarbons polluting Hamilton Harbor on Lake Ontario have generally been sorbed. The binding of the hydrocarbons was investigated using cascade sedimentation, centrifugation, electron microscopy, and spectroscopy. Particles ranged in size from 10(to the negative third power) to 10(to the third power)um. This type of methodology had not been used in the evaluation of lake pollution prior to this study.

Canada, Cyclic Crude and Intermediate Manufacturing, Pollution Control R&D, Aromatic Hydrocarbons, Pollution control research

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Binding of polycyclic aromatic hydrocarbons by size classes of particulate in Hamilton Harbor water

Article Abstract:

Investigations into the transport of organic contaminants in Hamilton Harbor, Canada showed that polycyclic aromatic hydrocarbons are sorbed to suspended flocs. The size of the flocs determine the sorption of PAHs, with flocs having a size of 20 micrometers accounting for 98% of phenanthrene binding, 89% of flouranthrene binding and 85% of pyrene binding. The sorption pattern is consistent with the movement of colloid systems.

United States, Ecological Sciences, Environmental sciences, Sedimentation and deposition, Deposition (Geology), Flocculation, Flocculation tests, Organic geochemistry

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Floc architecture in wastewater and natural riverine systems

Article Abstract:

The influence of floc ultrastructure over external floc behavior in natural and engineered water systems was investigated. The results showed that floc pores featured complex matrices and polymeric fibrils. The fibrils were the main bridging mechanism between organic and inorganic components of the flocs and they contributed to surface area characteristics.

Sewage, Rivers, Flocculants

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