TITLE:
Washing and Dyeing Wastewater Treatment by Combined Nano Flocculation and Photocatalysis Processes
AUTHORS:
Yamei Dong, Ting Wang, Xiaojia Wan, Dannong He
KEYWORDS:
Washing and Dyeing Wastewater, Nano Flocculation, Nano Photocatalysie
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.3 No.2,
April
1,
2015
ABSTRACT: The research investigated the
performance of combined process (flocculation pretreatment-pho- to catalysis). The
characteristics of nano flocculation and photocataly were evaluated by simulated
dye and surfactant wastewater. In the coagulation and settling period, decolorization
rate of five dyes wastewater by nano flocculant was higher than 95%. In the photocatalytic
period, degradation of twelve sodium dodecyl benzene sulfonate reached 33%. Washing
and dyeing wastewater treated by combined process conformed to the “textile dyeing
and finishing industry back to the water quality standard” (FZ/T 01107-2011). The
results showed that the combined process was highly advanced treatment for washing
and dying wastewater.