In the ex-situ washing methods, chelating agents or acids are used to enhance heavy metals removal. Ethylenediaminetetraacetic acid (EDTA) is the most commonly used chelate because of its strong chelating ability for different heavy metals.
In the ex-situ washing methods, chelating agents or acids are used to enhance heavy metals removal.Ethylenediaminetetraacetic acid (EDTA) is the most commonly used chelate because of its strong chelatingability for different heavy metals.