A method for continuously treating molasses alcohol wastewater to produce pha with halophilic mixed bacteria
A technology of molasses alcohol wastewater and halophilic mixed bacteria, applied in the direction of sustainable biological treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problem of large manpower, material and power consumption, short effective fermentation time, and fermentation efficiency Low and other problems, to achieve the effect of improving singleness, high PHA output, and high sludge output
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Embodiment 1
[0021] The specific implementation steps are as follows:
[0022] Step 1. Take the halophilic sludge from the estuary and put it into a 10L SBR reactor. Use domestic sewage to add coarse salt to prepare a culture solution with a salinity of 50g / L. The halophilic activated sludge is screened and activated. Complete aerobic aeration operation, dissolved oxygen concentration ≥ 3mg / L, aeration time 8h, precipitation 4h, then drain the supernatant, run for 40 days; wait until the sludge color changes from black brown to light yellow, and activated sludge appears When characteristics, enter the next stage of domestication and cultivation.
[0023] Step 2: Add 8L of molasses alcohol wastewater to the SBR reactor containing the halophilic activated sludge that has been domesticated in Step 1, and control the reaction conditions as room temperature, dissolved oxygen ≥3mg / L, aeration time 20h, precipitation 4h, and then Drain the supernatant; run for 25 days until the halophilic activated s...
Embodiment 2
[0028] The specific implementation steps are as follows:
[0029] Step 1. Take the halophilic sludge from the estuary and put it into a 10L SBR reactor. Use domestic sewage to add coarse salt to prepare a culture solution with a salinity of 50g / L. The halophilic activated sludge is screened and activated. Complete aerobic aeration operation, dissolved oxygen concentration ≥ 3mg / L, aeration time 8h, precipitation 4h, then drain the supernatant, run for 40 days; wait until the sludge color changes from black brown to light yellow, and activated sludge appears When characteristics, enter the next stage of domestication and cultivation.
[0030] Step 2: Add 8L of molasses alcohol wastewater to the SBR reactor containing the halophilic activated sludge that has been domesticated in Step 1, and control the reaction conditions as room temperature, dissolved oxygen ≥3mg / L, aeration time 20h, precipitation 4h, and then Drain the supernatant; run for 25 days until the halophilic activated s...
Embodiment 3
[0035] The specific implementation steps are as follows:
[0036] Step 1. Take the halophilic sludge from the estuary and put it into a 10L SBR reactor. Use domestic sewage to add coarse salt to prepare a culture solution with a salinity of 50g / L. The halophilic activated sludge is screened and activated. Complete aerobic aeration operation, dissolved oxygen concentration ≥ 3mg / L, aeration time 8h, precipitation 4h, then drain the supernatant, run for 40 days; wait until the sludge color changes from black brown to light yellow, and activated sludge appears When characteristics, enter the next stage of domestication and cultivation.
[0037] Step 2: Add 8L of molasses alcohol wastewater to the SBR reactor containing the halophilic activated sludge that has been domesticated in Step 1, and control the reaction conditions as room temperature, dissolved oxygen ≥3mg / L, aeration time 20h, precipitation 4h, and then Drain the supernatant; run for 25 days until the halophilic activated s...
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