FATE OF PESTICIDES IN BOTTOM SEDIMENTS DURING DREDGING AND DISPOSAL CYCLE.

Raymond J. Krizek*, Leo A. Raphaelian

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

Many previous studies have indicated that polluted dredgings may contain a variety of natural wastes, fertilizers, pesticides, detergents, metals, oil, grease, and many other by-products from industrial processes. Because of the high degree of pollution in many cases, microorganisms that normally degrade the pollutants and purify the water are unable to survive; moreover, even if they were able to survive, some industrial chemicals, particularly many of the pesticides, are intractable. This study is directed toward: (a) evaluating the extent to which various pesticides are associated with the solid portion of the dredgings, and (b) advancing some possible correlations and explanations for the observed behavior. It is concluded that the disposal of polluted bottom sediments within diked enclosures serves to contain the majority of the pesticides that are present; pesticide concentrations in the supernatant or outflow waters are several orders of magnitude lower than those in the retained solid materials.

Original languageEnglish (US)
Pages (from-to)780-783
Number of pages4
JournalAmerican Chemical Society, Division of Petroleum Chemistry, Preprints
Volume9
Issue number4
StatePublished - Jan 1 1974

ASJC Scopus subject areas

  • Fuel Technology

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