Removal of organic compounds and trace metals from oil sands process-affected water using zero valent iron enhanced by petroleum coke.

The oil production generates large volumes of oil sands process-affected water (OSPW), referring to the water that has been in contact with oil sands or released from tailings deposits. There are concerns about the environmental impacts of the release of OSPW because of its toxicity. Zero valent iron alone (ZVI) and in combination with petroleum coke (CZVI) were investigated as environmentally friendly treatment processes for the removal of naphthenic acids (NAs), acid-extractable fraction (AEF), fluorophore organic compounds, and trace metals from OSPW.

Detection and characterization of silver nanoparticles in aqueous matrices using asymmetric-flow field flow fractionation with inductively coupled plasma mass spectrometry.

Engineered nanomaterials (EN) may be released into the environment as a result of their use in various consumer products. Silver nanoparticles (nAg) are widely used as an antimicrobial agent in personal care and household products, and in textiles. Since there is high potential for nAg to be released into municipal wastewater and then discharged into the aquatic environment, there is a need to develop methods for the analysis of these materials in aqueous matrices.

A novel approach for determining total titanium from titanium dioxide nanoparticles suspended in water and biosolids by digestion with ammonium persulfate.

Titanium dioxide (i.e. TiO(2)) in nano-form is a constituent of many nanomaterials that are used in sunscreens, cosmetics, industrial products and in biomedical applications.