Remediation of Hg-contaminated marine sediments by simultaneous application of enhancing agents and microwave heating (MWH)

Abstract

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Simultaneous removal of multiple heavy metals from soil by washing with citric acid and ferric chloride

“…16 Consequently, synthetic chelates, such as ethylenediamine tetraacetic acid (EDTA) and diethylene triamine pentaacetic acid (DTPA), have been used for soil remediation because of their strong chelating ability for different heavy metals. 17 However, they have poor biodegradability and are unstable at high temperatures. 18 In recent years, citric acid (CA), a tricarboxylic acid compound, has played an important role in removing heavy metals from soil via acid dissolution and chelation, 19 and is more readily biodegradable than EDTA.…”

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