Effect of Ozone Aeration on Deodorization and Decolorization of Biogas Slurry of Food Waste
To address the issue of high-chroma and pungent odor of biogas slurry of food waste,this study used ozone aera-tion technology to deodorize and decolorize the biogas slurry,and explored the effects different air/water ratio and tempera-ture on ozone aeration treatment.Results showed that when air/water ratio was 1∶25,the odor emission value of biogas slur-ry was lower than 70,which reached the standard of agricultural biogas slurry use,the amount of ozone unit treatment bio-gas slurry was the largest,and the chroma removal rate could reach more than 90％.With the increase of temperature,the deodorization and decolorization decreased,and the optimal temperature was 25 ℃.This study provides a feasible technolo-gy for deodorizing and decolorizing biogas slurry of food waste.
biogas slurry of food wasteozone aerationdeodorizationdecolorization
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