Deng T1, Zhang B2, Li F1, Jin L1.
Chemosphere. 2017 Feb;168:450-456. doi: 10.1016/j.chemosphere.2016.09.152. Epub 2016 Nov 6.Sodium polyamidoamine-multi dithiocarbamate (PAMAM-DTC) is a kind of heavy metals capturing agent, containing functional groups of dithiocarbamate that could strongly chelate heavy metals. In this paper, it was applied to precipitate heavy metal ions from meal-EDTA and reclaim EDTA during sediment washing process. The extracting performance of fresh EDTA was studied as a function of EDTA concentration, liquid/sediment (L/S), pH, and extraction time. Read More