TY - JOUR
T1 - HPLC-MSn to investigate the oxidative destruction pathway of aromatic sulfonate wastes
AU - Gosetti, Fabio
AU - Gianotti, Valentina
AU - Ravera, Mauro
AU - Gennaro, Maria Carla
PY - 2005/11
Y1 - 2005/11
N2 - The article concerns the problem of destruction and remediation of industrial wastes containing aromatic sulfonates. The effects of an oxidation process induced by thermally activated persulfate in the degradation of 1,5-naphthalenedisulfonate (NDS) are investigated by the use of UV-Vis spectrophotometry, high performance liquid chromatography-mass spectrometry (HPLC-MS) and HPLC-MSn techniques. The results obtained indicated that thermal activation (80°C) of a solution containing NDS and sodium persulfate in a molar ratio equal to 1 leads to the cleavage of the naphthalene structure. Estimated chemical oxygen demand (COD) indicates that when the excess of persulfate is equal to 100, NDS undergoes a mineralization of the order of 90%. A degradation pathway undergone by NDS when thermally activated in the presence of persulfate is proposed.
AB - The article concerns the problem of destruction and remediation of industrial wastes containing aromatic sulfonates. The effects of an oxidation process induced by thermally activated persulfate in the degradation of 1,5-naphthalenedisulfonate (NDS) are investigated by the use of UV-Vis spectrophotometry, high performance liquid chromatography-mass spectrometry (HPLC-MS) and HPLC-MSn techniques. The results obtained indicated that thermal activation (80°C) of a solution containing NDS and sodium persulfate in a molar ratio equal to 1 leads to the cleavage of the naphthalene structure. Estimated chemical oxygen demand (COD) indicates that when the excess of persulfate is equal to 100, NDS undergoes a mineralization of the order of 90%. A degradation pathway undergone by NDS when thermally activated in the presence of persulfate is proposed.
UR - http://www.scopus.com/inward/record.url?scp=28044452882&partnerID=8YFLogxK
U2 - 10.2134/jeq2005.0173
DO - 10.2134/jeq2005.0173
M3 - Article
SN - 0047-2425
VL - 34
SP - 2328
EP - 2333
JO - Journal of Environmental Quality
JF - Journal of Environmental Quality
IS - 6
ER -