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- W2380146607 abstract "The article aims to develop a method for purifying the waste gas containing formaldehyde in low concentration by using biological Trickling Filter. Our experimental research is done to purify the waste gas with formaldehyde in low concentration, in which microorganism fungus were developed and packed into the biological tricking filter with biofilm packing-material. In doing so, we have studied the effect of the concentration of formaldehyde in influent gas, the gas flow and the influent flow in purification efficiency of HCHO and the biological elimination of HCHO. The results show that, when the concentration of formaldehyde in influent gas is rising, the purification efficiency of formaldehyde would be decreased, nevertheless, the biological elimination of formaldehyde would be increased. With the increase of the gas flow, the purification rate of formaldehyde can be kept at about 65%, but the biological elimination rate of formaldehyde would be increased with the rise of the gas flow. Furthermore, when the liquid flow was increased from 10 L/h to 20 L/h, the purification efficiency of formaldehyde would be increased from 40% to 80%. When the liquid flow continued to rise, the rising trend of the purification efficiency of formaldehyde would be decreased. To be exact, when the liquid flow was 40 L/h, the purification efficiency of formaldehyde was about 90%. And the biological elimination of formaldehyde was increased with the increase of the liquid flow. The increase trend of the biological elimination of formaldehyde would increase when the liquid flow reached 20 L/h. Thus, the research has proved that it was feasible to purify formaldehyde organic waste gas by using a biological trickling ." @default.
- W2380146607 created "2016-06-24" @default.
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- W2380146607 date "2005-01-01" @default.
- W2380146607 modified "2023-09-24" @default.
- W2380146607 title "A method for purifying HCHO waste gas by using a biological trickling filter" @default.
- W2380146607 hasPublicationYear "2005" @default.
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