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Adsorption of DDT on Solid Particles
Author(s) -
Champion D. F.,
Olsen S. R.
Publication year - 1971
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1971.03615995003500060015x
Subject(s) - adsorption , chemistry , chlorine , soil water , aqueous solution , environmental chemistry , inorganic chemistry , ion exchange , colloid , organic matter , molecule , ion , organic chemistry , geology , soil science
Abstract DDT adsorption from water by ion exchange resins, aluminum oxides, ion exchange celluloses, and soils was determined by measuring carbon‐14 labeled DDT remaining in solution. The positively charged adsorbents adsorbed more DDT from solution than the negatively charged adsorbents. In addition, the association of DDT with organic matter and colloidal clay in the aqueous phase resulting from sedimented soils increased DDT in solution. The chlorine atoms on the ethyl group of the DDT molecule possess a slight negative charge which appeared mainly responsible for the adsorption of DDT.