Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
644116 | Separation and Purification Technology | 2006 | 6 Pages |
Abstract
A process of coordination polymerization precipitation was proposed as a new alternative to the conventional treatment method for removing heavy metals wastewater. A chelating reagent with two chelating groups, N,N-bis-(dithiocarboxy)piperazine, was employed as the first coordination polymerization precipitant to remove copper(II) from wastewaters containing free and complex copper(II). It was observed that BDP could effectively reduce 50.00 mg/L free and complex Cu2+ in wastewater to much lower than 0.5 mg/L by bridging Cu2+ to yield highly insoluble linear chelating polymer and the polymer precipitates were easier to settle and less susceptible to leaching than copper diethyldithiocarbamate.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
Fenglian Fu, Runming Chen, Ya Xiong,