[Adsorption Characteristics and Mechanism of Ammonia Nitrogen in Water by Nano Zero-valent Iron-modified Biochar].

The adsorption performances of ammonia nitrogen (NH-N) in water by unmodified biochar are ineffective. In this study, nano zero-valent iron-modified biochar (nZVI@BC) was prepared to remove NH-N from water. The NH-N adsorption characteristics of nZVI@BC were investigated through adsorption batch experiments.

The distributions, removals and estrogenic effects of selected endocrine disrupting chemicals in two drinking water factories in China.

The distributions and effects of 31 selected endocrine disrupting chemicals (EDCs) in two drinking water factories were analyzed in this study. The distributions of EDCs were analyzed by solid phase extraction (SPE) combined with liquid chromatography tandem mass spectrometry (LC-MS/MS). The concentrations of these EDCs were from lower than the LOD (limit of detection) to 23.