Research On Water Quality Characteristics And Catalytic Ozonation Treatment Of Landfill Leachate During Anaphase

Based upon the research achievements about landfill leachate treatment technology and Catalytic Ozonation technology in China and abroad, the water quality characteristics of landfill leachate in anaphase of leachate has been analyzed by samples analysis in site at first, and the results show that the landfill leachate in anaphase prossessed high chroma, high pH, and large quantities of humic acid. Secondarly, the ozonation reaction system designed by the author was adopted to perform the experiments about ozonation oxidation and catalytic ozonation. The effect of factors such as initial pH of leachate, dosage of ozonation and water quality characteristic of landfill leachate on leachate treatment has been analyzed, and its results show that both ozonation oxidation and catalytic ozonation could remove most of the chroma and humic acid of leachate and effectively improve the biodegradability of leachate. Thirdly, leachate pretreatment by chemical methods has been experimented, and its results show that most ammonia nitrogen in leachate can be removed by introducing Na2HPO4·12H2O and MgCl2·6H2O simultaneity. At last of this paper, the treatment technology of landfill leachate in anaphase by ozonation has been pointed out, and the optimal technology parameters have been also determined elementarily.