+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Fate of iodinated X-ray contrast media compounds under aerobic and anaerobic groundwater conditions

Fate of iodinated X-ray contrast media compounds under aerobic and anaerobic groundwater conditions

IAHS-AISH Publication 342: 350-353

Iodinated X-ray contrast media (ICM) compounds have been detected in the effluent of wastewater treatment plants (WWTP) in Perth, Western Australia, as well as in other locations around the world. With the increased use of treated wastewater for managed aquifer recharge (MAR), potential groundwater contamination from these compounds has become a concern, and there is little data available on the fate of these compounds under different aquifer geochemical conditions. The fate of two ICM compounds, iohexol (IOX) and iodipamide (IDP) were investigated under both aerobic and anaerobic aquifer conditions during 12-month large-scale column experiments. Under natural aerobic conditions, IOX was observed to biodegrade with a half life of 100 days). Under natural anaerobic conditions, no degradation of IOX was observed (half life >100 days), while IDP degraded rapidly with a half life of 2 days. Based on this data, a sequential remediation strategy was investigated that involved establishing an anaerobic reductive zone half way along a 200 cm-long aerobic column to provide a 100 cm-long aerobic zone followed by a 100 cm-long anaerobic zone. Results from this experiment confirmed that a sequential natural aerobic/enhanced anaerobic remediation strategy was viable, with rapid IOX degradation (half life <1 day) in the aerobic zone, followed by rapid IDP degradation (half life <1 day), along with denitrification and sulphate reduction, in the anaerobic zone of the column.

(PDF emailed within 1 workday: $29.90)

Accession: 037052617

Download citation: RISBibTeXText

Related references

Anaerobic Transformation of the Iodinated X-ray Contrast Medium Iopromide, Its Aerobic Transformation Products, and Transfer to Further Iodinated X-ray Contrast Media. Environmental Science and Technology 52(15): 8309-8320, 2018

Comparison of iodinated trihalomethanes formation during aqueous chlor(am)ination of different iodinated X-ray contrast media compounds in the presence of natural organic matter. Water Research 66: 390-398, 2015

Iodinated X-ray contrast media in the aquatic environment Fate and effects. Abstracts of Papers American Chemical Society 219(1-2): ENVR 47, 2000

A modified model of gentamicin induced renal failure in rats: toxicological effects of the iodinated X-ray contrast media ioversol and potential usefulness for toxicological evaluation of iodinated X-ray contrast media. Experimental and Toxicologic Pathology 65(5): 601-607, 2014

In situ and laboratory studies on the fate of specific organic compounds in an anaerobic landfill leachate plume, 1. Experimental conditions and fate of phenolic compounds. Journal of Contaminant Hydrology 20(1-2): 27-50, 1995

The use of contrast media--iodinated compounds. Rinsho Hoshasen. Clinical Radiography 33(11): 1175-1179, 1988

Occurrence of iodinated X-ray contrast media in domestic effluents and their fate during indirect potable reuse. Journal of Environmental Science and Health Part A, Toxic/Hazardous Substances and Environmental Engineering 36(9): 1633-1645, 2001

Iodinated Organic Compounds as Contrast Media for Radiographic Diagnoses. Radiology 43(3): 236-240, 1944

Urea-linked, iodinated bis phenyl compounds for X-ray contrast media. Official Gazette of the United States Patent & Trademark Office Patents 1226(4), Sep 28, 1999

Recommendations of the European Society of Urogenital Radiology on the use of contrast media and the opportunity to use paramagnetic contrast in patients allergic to iodinated contrast media treated with endourology. Actas Urologicas Espanolas 26(10): 820, 2003

Investigating the fate of iodinated X-ray contrast media iohexol and diatrizoate during microbial degradation in an MBBR system treating urban wastewater. Environmental Science and Pollution Research International 20(6): 3592-3606, 2013

Iodinated organic compounds as contrast media for radiographic diagnoses. X. Interrelationship of gallbladder and pancreas. Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine 77(1): 156-158, 1951

Aqueous injectable formulations useful for radiodiagnosis comprising iodinated aromatic compounds used as X-ray contrast media. Official Gazette of the United States Patent & Trademark Office Patents 1205(2): 1254, Dec 9, 1997

Metabolic fate of acrolein under aerobic and anaerobic aquatic conditions. Journal of Agricultural & Food Chemistry 43(9): 2497-2503, 1995

Iodinated organic compounds as contrast media for radiographic diagnoses; XIV--The influence of pancreatic function on cholecystography. New York State Journal of Medicine 51(24): 2880-2884, 1951