Study On The Treatment Of Algin Chemical Wastewater Through The Process Of Flocculation-Oxidation And Adsorption

This experiment is focused on the algin chemical wastewater which is taken from the real engineering project. This experiment research shows that it is technical feasible to treat algin chemical wastewater with the process of flocculation-oxidation and adsorption.During the process of flocculation, FeS04, A12(SO4)3, PAC, PFS and Xp flocculation were by used to treat algin chemical wastewater. The result shows that the Xp flocculation had the greatest capacity of reducing COD and BOD. The average COD and BOD removal was 79.1% and 76.7%.During the process of catalytic oxidation, NaCIO, Fenton reagent and O3 was be used to oxidate to the algin chemical wastewater which was be treated by Xp flocculation. The effect of all the oxidatent were not very good. Though the UV light was be introduced to these oxidation. The results indicated that the oxidation effect of these oxidant was greatly improved by introduction of UV light. UV-Fenton can be used to remove non-degradable of refractory organic pollutions in wastewater. The average COD and BOD removal was 56.9% and 58.8%.In the third process, it was studied that the effects of active carbon, slag, flyash and bentonite absorbed the algin chemical wastewater. Results showed that the active carbon was the best. But the other absorbent were cheap and effective, which cab be used to instead of active carbon in some engineering.The process of flocculation-oxidation and absorption was chose as the best onefor the wastewater treatment of algin chemical wastewater. After treatment, the wastewater could be discharged straightly according to national standards. The method is simple and place-sparing.