Heterotrophic Activity of Microorganisms in Soils Treated with Quaternary Ammonium Compounds

Autor:	Stephen Boyd, Jeffrey V. Nye, William F. Guerin
Rok vydání:	1994
Předmět:	Chemistry Microorganism Heterotroph General Chemistry Mineralization (soil science) Biodegradation complex mixtures Soil contamination chemistry.chemical_compound Bioremediation Bromide Environmental chemistry Soil water Environmental Chemistry
Zdroj:	Environmental Science & Technology. 28:944-951
ISSN:	1520-5851 0013-936X
DOI:	10.1021/es00054a029
Popis:	In situ soil modification using quaternary ammonium compounds (QACs) enhances the immobilization of organic contaminants. The feasibility of coupling contaminant immobilization with subsequent bioremediation was assessed in biodegradability tests of 14 C-labeled organic compounds in QAC-treated soils. Aqueous hexadecyltrimethylammonium (HDTMA) bromide added to soils caused increased lag periods and decreased rates and extents of mineralization of test compounds as a result of selective toxicity toward Gram-negative soil microorganisms. Toxic effects were more pronounced at higher HDTMA treatment levels and with more complex test substrates. Once bound to soil or clay, HDTMA toxicity was greatly reduced
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef2d1d435966d0113be332f23b0b2478 https://doi.org/10.1021/es00054a029 Zobrazit plný text záznamu