J. Prousek et I. Duriskova, OXIDATIVE-DEGRADATION OF POLY(ETHYLENE GL YCOL)S (PEG) BY THE FENTON AND PHOTO-FENTON REACTIONS, Chemicke listy, 92(3), 1998, pp. 218-220
The oxidative degradation of PEC and 6-caprolactam by the Fenton and p
hoto-Fenton reactions was investigated. The reduction in chemical oxyg
en demand (GOD) ranged from 72 % for PEG 6000 to 84 % for PEG 300 at t
he initial concentration c = 300 mg.l(-1). A satisfactory decrease in
COD was also attained in the purification of technological waste water
s. The results and, above all, technological parameters such as sludge
structure, speed, and time of the sedimentation have been improved us
ing the flocculant Zetag 57. Better results were obtained with photo-F
enton reaction than with Fenton reaction.