Flexible biospheres for wastewater treatment and cultivation method thereof
A wastewater treatment and cultivation method technology, which is applied in special compound water treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of harsh operating conditions of granular sludge treatment wastewater, which affects the efficiency and effect of wastewater treatment , limited stability and other issues, to achieve the effects of reduced fluidization power, reduced aeration, and reduced density
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Embodiment 1
[0032] In this embodiment, a method for cultivating flexible biospheres for wastewater treatment is provided, and the steps are as follows:
[0033] (1) The waste water with a COD concentration of 400mg / L is put into the water tank 1, which is composed of glucose, NH 4 Cl, KH 2 PO 4 , NaHCO 3 Mixed aqueous solution prepared with water, wherein the concentration of glucose is 375mg / L, NH 4 The concentration of Cl is 70mg / L, KH 2 PO 4 The concentration is 20mg / L, NaHCO 3 The concentration of 460mg / L; the activated sludge that will be taken from the aeration tank of urban domestic sewage treatment plant is added in the moving bed biofilm reactor, and the addition amount of described activated sludge is every liter of waste water 1g;
[0034] The waste water in the water inlet barrel 1 is passed into the moving bed biofilm reactor by the water inlet pump 2, and the feeding amount of the waste water is 70% of the effective volume of the reactor, and the operation blower 6 is ...
Embodiment 2
[0041] In this embodiment, a method for cultivating flexible biospheres for wastewater treatment is provided, and the steps are as follows:
[0042] (1) Put waste water with a COD concentration of 600mg / L into the water tank 1, the waste water is glucose, NH 4 Cl, KH 2 PO 4 , NaHCO 3 A mixed aqueous solution prepared with water, wherein the concentration of glucose is 560mg / L, NH 4 The concentration of Cl is 80mg / L, KH 2 PO 4 The concentration is 25mg / L, NaHCO 3 The concentration of 490mg / L; The activated sludge that will be taken from the aeration tank of urban domestic sewage treatment plant is added in the moving bed biofilm reactor, and the addition amount of described activated sludge is 3g per liter of waste water;
[0043] The waste water in the water inlet barrel 1 is passed into the moving bed biofilm reactor by the water inlet pump 2, and the feed rate of the waste water is 90% of the effective volume of the reactor, and the operation blower 6 passes through th...
Embodiment 3
[0050] In this example, the flexible biosphere prepared in Example 1 is used to treat wastewater, and the operation is as follows:
[0051] Add the flexible biospheres prepared in Example 1 into the reactor, the addition amount of the flexible biospheres is 30% of the effective volume of the reactor, and the wastewater with a COD concentration of 800-1000 mg / L is passed into the reactor, and the aeration Under the conditions, the reactor was operated for 54 days in the mode of continuous water inflow and continuous drainage, the hydraulic retention time of the wastewater in the reactor was controlled to be 15h, and the aeration rate of the aeration operation was controlled so that the amount of dissolved oxygen in the wastewater in the reactor was 4mg / L. During the 54 days of operation, the COD concentration of the influent and effluent water was regularly detected, and the COD removal rate was calculated. The results are as follows Figure 4 shown.
[0052] Depend on Figu...
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Abstract
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