TY - JOUR
T1 - Electrogeneration of inorganic chloramines on boron-doped diamond anodes during electrochemical oxidation of ammonium chloride, urea and synthetic urine matrix
AU - Garcia-Segura, Sergi
AU - Mostafa, Ehab
AU - Baltruschat, Helmut
N1 - Funding Information:
Dr. Garcia-Segura acknowledges the financial support from Green Talents award from Forschung für Nachhaltige Entwicklung of Bundesministerium für Bildung und Forschung of the German Federal Government.
Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/9/1
Y1 - 2019/9/1
N2 - Ubiquitous presence of chloride in water effluents may result in the unavoidable electrogeneration of active chlorine species when considering the application of electrochemical advanced oxidation processes as water treatment technologies. However, less attention has been drawn to the subsequent generation of other combined chlorine species such as chloramines. In this work, the electrogeneration of chloramines has been assessed in different water matrices containing NHCl4, urea or synthetic urine. The yield of chloramines has been followed in-situ by differential electrochemistry mass spectroscopy (DEMS) during electrochemical advanced oxidation process with boron-doped diamond (BDD) anodes. Furthermore, the influence of several variables such as chloride concentration, pH or organics concentration on the different distribution of inorganic monochloramine, dichloramine and trichloramine released as products has been considered.
AB - Ubiquitous presence of chloride in water effluents may result in the unavoidable electrogeneration of active chlorine species when considering the application of electrochemical advanced oxidation processes as water treatment technologies. However, less attention has been drawn to the subsequent generation of other combined chlorine species such as chloramines. In this work, the electrogeneration of chloramines has been assessed in different water matrices containing NHCl4, urea or synthetic urine. The yield of chloramines has been followed in-situ by differential electrochemistry mass spectroscopy (DEMS) during electrochemical advanced oxidation process with boron-doped diamond (BDD) anodes. Furthermore, the influence of several variables such as chloride concentration, pH or organics concentration on the different distribution of inorganic monochloramine, dichloramine and trichloramine released as products has been considered.
KW - Boron-doped diamond anodes (BDD)
KW - Chlorine active species
KW - Differential electrochemical mass spectroscopy (DEMS)
KW - Electrochemical advanced oxidation
KW - Electrochlorination
KW - Water treatment
UR - http://www.scopus.com/inward/record.url?scp=85066066232&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85066066232&partnerID=8YFLogxK
U2 - 10.1016/j.watres.2019.05.046
DO - 10.1016/j.watres.2019.05.046
M3 - Article
C2 - 31136845
AN - SCOPUS:85066066232
SN - 0043-1354
VL - 160
SP - 107
EP - 117
JO - Water Research
JF - Water Research
ER -