Treatment of the Flax Wastewater by Two-phase Biological Method and Photocatalysis

[Objective]The research aimed to study treatment effect of the flax wastewater by two-phase biological method and photocatalysis.[Method]For characteristics of the flax wastewater,retting flax wastewater was treated by two-phase biological method and photocatalysis,and treatment effect of the process was studied.[Result] After treated by the system,total removal rates of CODCr,SS and chroma in retting flax wastewater respectively reached 97.9%,89.2% and 80.0%,while pH was 6.8.Each indicator reached level-two standard of Comprehensive Emission Standard of the Sewage.[Conclusion]The research could provide a kind of economic and effective treatment process for flax wastewater.