Activated sludge enriching method and vacuum suction concentration device
A sludge concentration and activated sludge technology, applied in water/sludge/sewage treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problem that activated sludge cannot effectively settle in the secondary sedimentation tank , to achieve the effect of reducing annual operating costs, increasing concentration, and reducing scum
Inactive Publication Date: 2008-02-06
BEIJING KAIDEFEI COOLER MFG
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[0003] In order to solve the problem that the activated sludge in the existing activated sludge water treatment system cannot effectively settle in the secondary sedimentation tank, the object of the present invention is to provide an activated sludge concentration method and a negative pressure vacuum sludge concentration device, the activated sludge The concentration method can reduce the nitrogen content in the sewage, and concentrate the activated sludge, and then discharge it into the secondary sedimentation tank for sedimentation, which can greatly improve the settling performance of the activated sludge, and eliminate the phenomenon of activated sludge swelling and settled sludge floating
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[0026] Referring to Fig. 1, Fig. 2 and Fig. 3, the negative pressure vacuum sludge thickening device of the present invention comprises a degassing tank 1, and at least one water inlet pipe 3 and one water outlet pipe 4 are respectively arranged under the two ends of the degassing tank, The water inlet pipe 3, the degassing tank 1, and the water outlet pipe 4 are sequentially communicated; the concentration device also includes a vacuum pump 17, which communicates with the degassing tank 1 through the vacuum tube 2; the device also includes an air compressor 11, the The compressed air pipe 6 nozzles of the air compressor are located at the water inlet of the water inlet pipe 3 .
[0027] In this embodiment, the vacuum pump 17 communicates with the degassing tank 1 through the vacuum tube 2, and the vacuum tube 2 extends into the upper part of the degassing tank along the outlet pipe 4, and the nozzle of the vacuum tube 2 is higher than the water surface in the degassing tank. ...
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The invention relates to a concentration method of active mud and a negative pressure vacuum mud concentration device to be concerned, the concentration device comprises a degassing tank, at least one water input tube and one water output tube are respectively arranged at the bottom of the two ends of the degassing tank, the water input tube, the degassing tank and the water output tube are communicated with each other in turn; the concentration device also comprises a vacuum pump which is communicated with the degassing tank through a vacuum tube; the invention also comprises an air compressor, the pipe end of an air compressing tube of the air compressor is arranged at a water inlet of the water input tube; the method of the invention is to take use of the negative pressure vacuum mud concentration device to expand and destroy the active mud inside an gas-water mixing liquid, a nitrogen to be separated out from the gas-water mixing liquid is discharged, the active mud can be recombined into a compact mud block which is discharged into a depositing tank. The invention can largely improve the sedimentation performance of the active mud, and remove the expansion of the active mud and the upper floating problem of the sediment mud.
Description
technical field [0001] The invention relates to a biologically active sludge sewage treatment method and device, in particular to an activated sludge concentration method and a negative pressure vacuum sludge concentration device. Background technique [0002] In the activated sludge water treatment system, the fully mixed sewage is aerated in the aeration tank and then discharged into the secondary sedimentation tank for sedimentation. In this process, the sewage will produce a large amount of nitrogen after being aerated. The medium nitrogen reaches a saturated state, and the saturated nitrogen is adsorbed on the activated sludge. This state not only affects the contact between oxygen and sludge, but also affects the settlement of activated sludge in the secondary sedimentation tank. Contents of the invention [0003] In order to solve the problem that the activated sludge in the existing activated sludge water treatment system cannot effectively settle in the secondary ...
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Login to View More IPC IPC(8): C02F3/12C02F1/52
CPCY02W10/10
Inventor 黄荣锋
Owner BEIJING KAIDEFEI COOLER MFG