Method for improving processing of high-load n-hexane waste gas by biotrickling filter
A technology of biological trickling and n-hexane, which is applied in chemical instruments and methods, separation methods, air quality improvement, etc., can solve the problems of low solubility of n-hexane, large mass transfer resistance, difficult to effectively handle, etc., to improve water solubility, The effect of reducing mass transfer resistance and increasing biodegradation rate
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[0019] The main body of the device is two plexiglass columns, which are equipped with two layers of polyurethane sponge packing (10 PPI) inside and outside. The gas distribution chamber enters the packing layer of the column after being mixed evenly for the second time, and is discharged from the upper gas outlet after being treated by the microorganisms growing on the packing. The nutrient distribution system of the device is composed of a spray device at the top of the column, a water pump and a nutrient solution storage tank.
[0020] The inoculation bacteria used in this invention adopt fresh sludge in the oxidation ditch of the urban domestic sewage treatment plant in Changsha City, Hunan Province. After retrieval, the sludge is placed in a bucket without any chemical or physical treatment, and the polyurethane sponge filler is soaked. Among them, stir the filler every four hours or so, take it out after 48 hours, and put it in the corresponding position in the device. A...
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