Development and application of screening tools for biodegradation in water-sediment systems and soil

The Science of the Total Environment
Thomas JunkerGerrit Schüürmann

Abstract

Two new screening-test systems for biodegradation in water-sediment systems (WSST; Water-Sediment Screening Tool) and soil (SST; Soil Screening Tool) were developed in analogy with the water-only test system OECD 301C (MITI-test). The test systems could be applied successfully to determine reproducible experimental mineralization rates and kinetics on the screening-test level for fifteen organic chemicals in water (MITI), water-sediment (WSST) and soil (SST). Substance-specific differences were observed for mineralization compared among the three test systems. Based on mineralization rate and mineralization half-life, the fifteen compounds could be grouped into four biodegradation categories: substances with high mineralization and a half-life <28 days in (1) all three test systems, (2) only in the MITI test and in the WSST, (3) only in the SST, and (4) none of the test systems. The observed differences between the MITI results and the WSST and SST biodegradation rates of the compounds do not reflect their (reversible) sorption into organic matter in terms of experimental K(oc) values and log D values for the relevant pH range. Regarding mineralization kinetics we recommend to determine the lag-phase, mineralization half-life a...Continue Reading

References

Dec 1, 1976·Journal - Water Pollution Control Federation·D J Holmberg, G F Lee
Apr 1, 1992·Ecotoxicology and Environmental Safety·N Nyholm, P Kristensen
Dec 1, 1987·Ecotoxicology and Environmental Safety·C R CripeA W Bourquin
Aug 6, 2004·Applied and Environmental Microbiology·Uwe StrotmannUdo Pagga
Jun 15, 2005·Analytical Biochemistry·Paul G Gottschalk, John R Dunn
Nov 22, 2005·Chemosphere·Dallas AronsonWilliam Stiteler
Sep 9, 2006·Chemosphere·Robert S Boethling, David G Lynch
Jun 26, 2009·Integrated Environmental Assessment and Management·Dolf van WijkChristoph Schulte
Dec 1, 2009·The Science of the Total Environment·Thomas JunkerThomas Knacker
Sep 18, 2013·Environmental Science and Pollution Research International·Andrew K GoodheadRussell J Davenport
Nov 1, 2013·Environmental Toxicology and Chemistry·Takakazu KayashimaToshiaki Tsuji
Apr 5, 2015·The Science of the Total Environment·M F WilksUNKNOWN HEROIC consortium

❮ Previous
Next ❯

Related Concepts

Related Feeds

Bioremediation (ASM)

Bioremediation is the treatment and removal of harmful pollutants or contaminants through the use of microorganisms. Discover the latest research here.