Coupling of bioelectrochemical toluene oxidation and trichloroethene reductive dechlorination for single-stage treatment of groundwater containing multiple contaminants

Tetrachloroethane (TeCA) removal through sequential graphite-mixed metal oxide electrodes in a bioelectrochemical reactor

“…Furthermore, the less chlorinated CAHs were oxidized at the counter electrode through oxidative dechlorination (OD) stimulation via in situ oxygen evolution. In this frame, the combination of OD downstream to RD is an interesting option to implement full bioremediation of CAHs in contaminated groundwater [ 22 , 23 ]. The sequential reductive/oxidative bioelectrochemical process can be obtained in a single microbial electrolysis cell (MEC) equipped with an ion exchange membrane or by using two membrane-less reactors involving sacrificial graphite counterelectrodes [ 24 ].…”

Fluorescence Detection of Trace Disinfection Byproducts by Ag Nanoprism-Modulated Lanthanide MOFs

“…The chlorination disinfection of municipal water generates disinfection byproducts (DBPs), which have raised a significant public health issue due to their toxicity, carcinogenicity, and mutagenicity. − Among the reported DBPs, trichloroacetic acid (TCAA), as a major component of haloacetic acids, , has received growing attention in recent years due to its high detection frequency and high potential carcinogenic and mutagenic effects. − The reported concentration of TCAA in various water media is at the μg/L level. − Commonly used detection methods of TCAA include gas chromatography, , high-performance liquid chromatography, , ion chromatography, and their combinations with mass spectrometry. Although these methods have high accuracy in DBP determination, the complex sample pretreatment, long detection time, and expensive equipment have restricted them to laboratory analysis.…”