PMID: 11337848May 8, 2001Paper

Biodegradability of ethylenediamine-based complexing agents

Water Research
V SýkoraT Lederer

Abstract

Biological degradability of ethylenediamine derivatives depends on the type and number of substituents. The susceptibility to biodegradation decreases in the sequence of substituents -COCH3, -CH3, -C2H5, -CH2CH2OH, -CH2COOH and with polysubstitution. The biodegradability depends also on the kind and number of nitrogen atoms. Complexing agents with a single-nitrogen atom in the molecule (e.g. NTA) succumb relatively readily to biodegradation whereas, compounds with two or more tertiary amino groups are biologically highly stable and do not undergo biodegradation even in experiments with activated sludge adapted at an age of up to 30 days (EDTA, DTPA, PDTA, HEDTA). A lowering of the degree of substitution brings about an increased susceptibility to biodegradation. This holds, e.g., for replacement of tertiary amino groups with secondary ones; thus the symmetrically disubstituted ethylenediamine-N,N'-diacetic acid (EDDA) possesses still sufficient complexing ability while belonging already to the group of potentially degradable substances.

References

Oct 1, 1967·Environmental Science & Technology·R D SwisherD W Caldwell

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Citations

Feb 25, 2005·Analytical and Bioanalytical Chemistry·Pirkko-Leena LaamanenRose Matilainen
Jun 23, 2005·Analytical and Bioanalytical Chemistry·Pirita Laine, Rose Matilainen
Oct 24, 2003·Journal of Hazardous Materials·Alexander KraftManfred Blaschke
Nov 27, 2007·SAR and QSAR in Environmental Research·A Sedykh, G Klopman
Jun 24, 2004·Environmental Pollution·Carsten K SchmidtHeinz-Jürgen Brauch
Sep 13, 2014·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Aaron J SloweyPeter S Nico
Nov 28, 2013·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·João G MartinsHelena M V M Soares
Jun 16, 2016·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Carlos Eduardo O AndradeMaria Eliana L R Queiroz
Sep 7, 2016·Journal of Environmental Management·Mary Kay CamarilloWilliam T Stringfellow
Nov 17, 2016·Environmental Monitoring and Assessment·Tanmoy KarakRomesh Kumar Boruah
Dec 6, 2014·Environmental Science. Processes & Impacts·Garima ChauhanK D P Nigam
Aug 11, 2016·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Zhen ZhangYuancai Chen
Nov 5, 2004·Environmental Toxicology·Carsten K Schmidt, Heinz-Jürgen Brauch

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