Biochemical comprehensive treatment method for 1, 3-propylene glycol fermentation organism waste water
A technology for fermenting microorganisms and comprehensive treatment, applied in the field of environmental protection
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Embodiment 1
[0037] Embodiment 1 (ATAD processing)
[0038] Such as figure 2 shown by figure 1 The concentrated 1,3-PD fermented microbial wastewater of PetroChina Jilin Petrochemical Company is pumped into the reactor through the inlet pump 2-10 of the ATAD reactor 2-7 to carry out the automatic temperature-increasing degradation reaction of the fermented microorganism; the ATAD reactor is placed in In the water bath 2-8, the outside of the water bath is provided with an insulation layer 2-6; and the aeration rate of the aeration pipe 2-5 connected to it is adjusted by the aeration pump 2-9; the stirring device 2-1 is started to adjust the stirring The speed of the device 2-1 is stirred by the stirring paddle 2-3 to carry out the automatic temperature-increasing degradation reaction of the fermenting microorganism. A thermometer 2-4 is provided on the ATAD reactor; a sampling tube 2-2 is provided at the lower left side of the reactor. See Table 1 for the quality of wastewater entering...
Embodiment 2
[0046] Embodiment 2 (UASB processing)
[0047] from image 3 It can be seen that a water inlet pipe 3-1 is provided at the lower part of the UASB reactor side, a biogas pipe 3-2 and a water outlet pipe 3-3 are provided at the top; three sampling pipes 3-4 are provided at the middle and lower part of the other side of the reactor. 10-30 parts by mass of waste liquid after ATAD treatment and 70-90 parts by mass of concentrated 1,3-propanediol fermentation microbial waste water are mixed (supernatant produced by waste water after ATAD treatment and 1,3-propanediol product The sum of liquid and waste liquids is 100 parts by mass, the waste water after the automatic temperature-increasing degradation treatment of fermentation microorganisms accounts for 10-30 parts, and the supernatant liquid waste liquid produced by 1,3-propanediol products accounts for 70-90 parts), at a temperature of At 30-60°C, it is sent to the UASB reactor, and the biogas generated during the experiment is ...
Embodiment 3
[0052] Embodiment 3 (alternate A / O processing)
[0053] from Figure 4 It can be seen that the outlet water of the UASB in the present invention enters the alternate anoxic / aerobic (alternative A / O) pool through the pipe 4-1. The alternate A / O process tank 4-4 of the device is provided with a variable wattage heating rod 4-5, and the bottom of the tank is provided with a microporous aeration head 4-6 connected with an ACO-280 electromagnetic air compressor 4-7 , the upper left of the A / O pool is provided with a water inlet pipe 4-1, and the upper right is provided with an outlet pipe 4-3. The stirring paddle installed in the A / O pool is driven by the JJ-1 type precision timing electric agitator 4-2 . The fermentation waste liquid of 1,3-PD product of PetroChina Jilin Petrochemical Company is treated by UASB process and then by alternate A / O process. See Table 3 for the water quality after alternate A / O process treatment and polyaluminum chloride coagulation treatment.
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