Discrimination of ion toxicity in six produced waters using the freshwater salinity toxicity relationships and TIE procedures

Conference · Fri Dec 01 04:00:00 EST 1995

OSTI ID:146204

Tietge, J E; Hockett, J R; Evans, J M

Research to characterize the toxicity of common ions to freshwater organisms resulted in the development of predictive toxicity models (FW STR) for three freshwater species (Ceriodaphnia dubia, Pimephales promelas, and Daphnia magna). The FW STR models, derived from acute toxicity data, focused on the toxicity of seven common ions. These predictive models were used in conjuntion with Phase I TIE procedures to evaluate the contribution of common ion toxicity in six produced water samples ranging in total salinity from 1.7 to 58.1 g/L. Initial toxicities of all six samples were compared to the model predictions. Four produced water samples were found to have toxicity due to common ion concentrations only. Two samples were found to exhibit more toxicity than expected from ion concentrations alone. These samples were subjected to Phase I TIE procedures. Toxicities were reduced by specific Phase I TIE manipulations to those predicted by the FW STR models. Mock effluents were used to verify the results. The combination of the FW STR models with Phase I TIE procedures successfully quantified the toxicity due to common ions.

• OSTI ID: 146204
• Report Number(s): CONF-950333--
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
54 ENVIRONMENTAL SCIENCES
AQUATIC ORGANISMS
CALCIUM IONS
CARBONIC ACID
CHLORINE IONS
DAPHNIA
ENVIRONMENTAL EFFECTS
IONS
MAGNESIUM IONS
NATURAL GAS INDUSTRY
PETROLEUM INDUSTRY
PH VALUE
POTASSIUM IONS
SALINITY
SULFATES
SURFACE WATERS
TOXICITY
WASTE DISPOSAL
WASTE WATER
WATER CHEMISTRY
WATER POLLUTION