DDT remediation in contaminated soils: A review of recent studies

Simi Sudharshan, Ravi Naidu, Megharaj Mallavarapu, Nanthi Bolan

Research output: Contribution to journalReview articlepeer-review

60 Citations (Scopus)

Abstract

Over the past few decades significant progress has been made in research on DDT degradation in the environment. This review is an update of some of the recent studies on the degradation and biodegradation pathways of DDT and its metabolites, particularly in soils. The latest reports on human toxicity shows that DDT intake is still occurring even in countries that banned its use decades ago. Ageing, sequestration and formation of toxic metabolites during the degradation processes pose environmental challenges and result in difficulties in bioremediation of DDT contaminated soils. Degradation enhancement strategies such as the addition of chelators, low molecular organic acids, co-solvent washing and the use of sodium and seaweeds as ameliorant have been studied to accelerate degradation. This review describes and discusses the recent challenges and degradation enhancement strategies for DDT degradation by potentially cost effective procedures based on bioremediation.

Original languageEnglish
Pages (from-to)851-863
Number of pages13
JournalBiodegradation
Volume23
Issue number6
DOIs
Publication statusPublished - Nov 2012
Externally publishedYes

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