Method for recovering volatile organic compounds as denitrification carbon source from waste gas
A volatile organic compound and volatile organic technology, which is applied in chemical instruments and methods, separation methods, gas treatment, etc., can solve the problem of low solubility of volatile organic compounds, large fluctuations in removal rate, differences in use places and configurations, and operation and maintenance And other issues
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Embodiment 1
[0042] The organic waste gas of a printing company is mainly ethanol and ethyl acetate.
[0043]The organic waste gas is treated by UV and other devices after passing through two absorption devices, and then discharged through a 25m high exhaust pipe.
[0044] The absorption liquid of the first absorption device and the second absorption device is water, and the CODcr of the absorption liquid after saturation is about 10 000-20 000mg / L.
[0045] Introduce the absorption liquid in the first absorption device into the fermenter, the volume of the fermenter is 15m 3 .
[0046] The fermenter is inoculated with domestic sewage and glucose, and the absorption solution is gradually introduced.
[0047] The fermentation broth in the fermenter overflows into the first absorption unit.
[0048] The gas produced by the fermenter is piped into the first absorption unit.
[0049] When the CODcr of the fermented liquid in the fermenter accumulated to 40 000mg / L, the tanker was transport...
Embodiment 2
[0051] The main component of an organic waste gas is thinner (butyl acetate), which contains a small amount of xylene. The organic waste gas is absorbed by the first absorption device (water curtain), then absorbed by the second absorption device (spray tower), and then discharged at high altitude after being treated by UV photolysis and activated carbon adsorption.
[0052] The first absorption device and the second absorption device absorb with water, the water is replenished from the second absorption device, and enters the first absorption device countercurrently, the CODcr in the absorption liquid of the first absorption device is 1 500 ~ 4 000mg / L.
[0053] The absorption liquid in the first absorption device is introduced into the fermenter for fermentation, the volume of the fermenter is 10m 3 .
[0054] The fermenter is inoculated with domestic sewage and glucose, and the absorption liquid of the first absorption unit is gradually introduced.
[0055] The absorpti...
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