Sequencing batch reactor, method for culturing biological membrane on sequencing batch reactor and method for treating sewage by utilizing sequencing batch reactor
A sequencing batch reactor and the technology of the reactor are applied in the field of culturing biofilms in the reactor and sequencing batch reactors, which can solve the problems of complicated control of the reactor, and achieve compact structure, small diameter, nitrogen, phosphorus and organic matter. low content effect
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[0025] Example 1:
[0026] like figure 1 As shown, the sequencing batch reactor of this embodiment includes a reactor body 4 with an effective volume of 4L, an inlet pump 1, an inlet pump 2, a control system 3, a filler 5, a drain valve 6 and a dissolved oxygen concentration detector 7, Nitrate concentration detector 8, organic matter concentration detector 9, phosphate concentration detector 10, the inlet pump 1, the inlet pump 2 and the drain valve 6 are respectively communicated with the reactor body 4, the control system 3 analyzes the dissolved oxygen The signals of the concentration detector 7, the nitrate concentration detector 8, the organic matter concentration detector 9 and the phosphate concentration detector 10 adjust the working state of the intake pump 1, the intake pump 2 and the drain valve 6, and the diameter of the filler 5 is 3 cm, The specific surface area is 200m 2 / m 3 , its volume is 80% of the reactor body 4.
[0027] As an improvement of the seque...
Example Embodiment
[0042] Example 2:
[0043] The difference between the sequencing batch reactor of this example and Example 1 is that in this example, the diameter of the filler 5 is 5 cm, and the specific surface area is 220 m 2 / m 3 , its volume is 50% of the reactor body 4. In the sequencing batch reactor of this embodiment, the filler 5 is made by 3D printing method, and its shape is a three-dimensional honeycomb-like spherical shape with 35 planes, and the material is polyamide fiber .
[0044] The method for culturing biofilms in the sequencing batch reactor of this embodiment includes the following steps:
[0045] 1), select the sequencing batch reactor and inoculate aerobic activated sludge, the concentration of inoculated sludge is 3g / L;
[0046] 2) Pump sewage containing organic matter and nitrogen and phosphorus into the reactor in an anaerobic state. The pH of the injected sewage is 7.5, the temperature is 8 °C, and the water injection time is 60 minutes. The anaerobic state ref...
Example Embodiment
[0058] Example 3:
[0059] The difference between the sequencing batch reactor in this example and Example 1 is that in this example, the diameter of the filler 5 is 2 cm, and the specific surface area is 250 m 2 / m 3 , its volume is 35% of the reactor body 4. In the sequencing batch reactor of this embodiment, the filler 5 is made by 3D printing method, and its shape is a three-dimensional honeycomb-like spherical shape with 40 planes, and the material is polyamide fiber .
[0060] The method for culturing biofilms in the sequencing batch reactor of this embodiment includes the following steps:
[0061] 1), select the sequencing batch reactor and inoculate aerobic activated sludge, and the concentration of inoculated sludge is 2g / L;
[0062] 2) Pump sewage containing organic matter and nitrogen and phosphorus into the reactor in an anaerobic state. The pH of the injected sewage is 6.5, the temperature is 25 °C, and the water injection time is 45 minutes. The anaerobic stat...
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