Determination of uptake kinetics (sampling rates) by lipid-containing semipermeable membrane devices (SPMDs) for polycyclic aromatic hydrocarbons (PAHs) in water

Journal Article · Mon Nov 01 04:00:00 EST 1999 · Environmental Science and Technology

DOI:https://doi.org/10.1021/es990440u· OSTI ID:20000720

Huckins, J N; Petty, J D; Orazio, C E; Lebo, J A; Clark, R C; Gibson, V L; Gala, W R; Echols, K R

The use of lipid-containing semipermeable membrane devices (SPMDs) is becoming commonplace, but very little sampling rate data are available for the estimation of ambient contaminant concentrations from analyze levels in exposed SPMDs. The authors determined the aqueous sampling rates (R{sub s}s; expressed as effective volumes of water extracted daily) of the standard (commercially available design) 1-g triolein SPMD for 15 of the priority pollutant (PP) polycyclic aromatic hydrocarbons (PAHs) at multiple temperatures and concentrations. Under the experimental conditions of this study, recovery-corrected R{sub s} values for PP PAHs ranged from {approximately}1.0 to 8.0 L/d. These values would be expected to be influenced by significant changes (relative to this study) in water temperature, degree of biofouling, and current velocity-turbulence. Included in this paper is a discussion of the effects of temperature and octanol-water partition coefficient (K{sub ow}); the impacts of biofouling and hydrodynamics are reported separately. Overall, SPMDs responded proportionally to aqueous PAH concentrations; i.e., SPMD R{sub s} values and SPMD-water concentration factors were independent of aqueous concentrations. Temperature effects on R{sub s} values appeared to be complex but were relatively small.

• Research Organization: Geological Survey, Columbia, MO (US)
• OSTI ID: 20000720
• Journal Information: Environmental Science and Technology, Journal Name: Environmental Science and Technology Journal Issue: 21 Vol. 33; ISSN ESTHAG; ISSN 0013-936X
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
MEMBRANES
POLYCYCLIC AROMATIC HYDROCARBONS
SAMPLERS
SAMPLING
TEMPERATURE DEPENDENCE
WATER POLLUTION