Full-automatic sewage concentration treatment equipment and treatment method

A treatment equipment and fully automatic technology, which is applied in water/sewage treatment, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problem of low concentration of sewage, large proportion of sewage in desilter, Unstable water content and other problems, to achieve the effect of high sewage concentration efficiency and multiples, short sewage concentration time, and stable sewage mud content

Inactive Publication Date: 2021-07-23
江苏健立飞净水设备有限公司
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  • Application Information

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Problems solved by technology

[0004] At present, the sewage from the secondary sedimentation tank of the urban sewage treatment plant, the sewage from the advection sedimentation tank or the inclined tube sedimentation tank of the waterworks is generally concentrated through the natural sedimentation of the thickening tank, and then enters the deslimer for desliming. The traditional process has high construction investment costs and long concentration time. , The problem of high water content and unstable water content after sewage concentration, in order to meet the characteristics of on-site sanitary conditions and water content changes after sewage concentration, generally choose a horizontal spiral centrifugal desilter
However, there are still the following problems: 1. The concentration ratio of sewage is not high, and the proportion of sewage entering the desilter is relatively large
2. Due to the large amount of sewage and high water content, the consumption of chemicals (polyacrylamide) is high, and the operating cost is high
3. The unstable water content after the sewage is concentrated directly affects the water content of desliming. At the same time, due to the addition of a large amount of chemicals, the deslimed water contains a large amount of residual chemicals, which cannot be reused, but can only be discharged, and zero discharge cannot be achieved.
4. The horizontal screw deslimer has a large operating power, consumes a lot of electric energy, and increases the operating cost, and does not meet the social development requirements of energy saving and emission reduction
The concentration of sewage sludge discharged from the sedimentation tank during the production process of the waterworks is greater than 5000mg / L, even exceeding 20000mg / L. The existing magnetic coagulation water treatment equipment is not suitable for the treatment of such high-concentration sewage

Method used

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  • Full-automatic sewage concentration treatment equipment and treatment method
  • Full-automatic sewage concentration treatment equipment and treatment method
  • Full-automatic sewage concentration treatment equipment and treatment method

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Experimental program
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Effect test

Embodiment 1

[0055] see Figure 1-17 , the present invention provides fully automatic sewage concentration treatment equipment, including a pre-separation stirring tank 1, an aerated magnetic separator 2, a concentrated sewage tank 3, a sedimentation tank 4 containing a plug-flow screw, a magnetic powder dosing system 5, and a drum filter Device 6, sewage tank 7, deslimer 8. Pre-separation stirring tank 1, aeration type magnetic separator 2, concentrated sewage tank 3, sedimentation tank with plug-flow screw 4, magnetic powder dosing system 5, drum filter 6 and deslimer 8 are all connected to the PLC controller . The deslimer 8 is a stacked screw deslimer. The pre-separation stirring tank 1, the aeration type magnetic separator 2, the magnetic powder dosing system 5, the sedimentation tank 4 containing the plug-flow screw, the drum filter 6, the concentrated sewage tank 3 and the deslimer 8 are all controlled by PLC device connection.

[0056] A kind of pre-separation stirred tank 1 co...

Embodiment 2

[0085] This embodiment differs from Embodiment 1 in that:

[0086] Shaftless helical screw I and shaftless helical screw II include the following weight fraction raw materials: the content of B is 12%, the content of Mo is 20%, the content of Cr is 10%, the content of C is 1%, and the content of V is 3% %, the content of Nb is 2%, the content of W is 5%, the content of Ce is 0.5%, the content of Mn is 5%, the content of Ni is 12%, and the balance is Fe. The powder degree of Cr is 30 μm; the powder degree of Mn is 50 μm. The purity of Mo is above 99.8%, the purity of B is above 99.7%, the purity of Cr is above 99.8%, the purity of Ni is above 99.5%, the purity of Mn is above 99.5%, and the weight ratio of Mo, Ni and B is 1.5:1:1.

Embodiment 3

[0088] This embodiment differs from Embodiment 1 in that:

[0089] Shaftless helical screw I and shaftless helical screw II include the following weight fraction raw materials: the content of B is 12%, the content of Mo is 20%, the content of Cr is 10%, the content of C is 1%, and the content of V is 3% %, the content of Nb is 2%, the content of W is 5%, the content of Ce is 0.5%, the content of Mn is 5%, the content of Ni is 12%, and the balance is Fe. The powder degree of Cr is 13 μm; the powder degree of Mn is 20 μm. The purity of Mo is above 99.8%; the purity of B is above 99.7%; the purity of Cr is above 99.8%; the purity of Ni is above 99.5%; the purity of Mn is above 99.5%; the weight ratio of Mo, Ni and B is 0.4:1:1.

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Abstract

The invention provides full-automatic sewage concentration treatment equipment. A pre-separation stirring tank, magnetic recovery equipment, a magnetic powder adding system and a sedimentation tank with brand-new structures are provided, the magnetic powder recovery rate is high, the full-automatic sewage concentration treatment equipment occupies a small area, is suitable for new construction, especially for reconstruction of old water plants with tense sites, and is low in overall investment and construction cost; traditional reinforced concrete structures such as a concentration tank and a sludge storage tank are replaced, the automation degree is high, debugging and operation are simple and reliable, and unattended operation can be achieved. The full-automatic sewage concentration treatment equipment is short in sewage concentration time, the desliming efficiency of the desliming machine is greatly improved, and the low water content of discharged sludge is ensured. The equipment has the characteristics of stable and reliable operation, simple operation, small occupied area, high sewage concentration efficiency, large water treatment amount and low operation cost according to the current treatment situation of the sewage of the waterworks.

Description

technical field [0001] The invention belongs to the technical field of environmental protection engineering, relates to the technical field of waste water treatment in waterworks, in particular to a fully automatic sewage concentration treatment equipment and treatment method. Background technique [0002] The production wastewater of the waterworks mainly comes from the sludge discharge from the sedimentation tank or the clarification tank and the backwash wastewater from the filter, which contains impurities in the raw water and residues of chemicals added by the waterworks. 3% to 7%, the direct discharge of production wastewater does not meet the national environmental protection requirements, which causes waste of water resources and is not conducive to the normal operation of urban sewage treatment plants. In recent years, more and more attention has been paid to the treatment of sludge water from waterworks, and the technological processes adopted are also different. ...

Claims

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Application Information

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IPC IPC(8): C02F9/12C02F1/48C02F1/52C02F1/56C02F11/121
CPCC02F1/488C02F1/52C02F1/5236C02F1/56C02F9/00C02F11/121C02F2209/005C02F2301/08
Inventor 樊继健姜旭光傅晓波韩正龙
Owner 江苏健立飞净水设备有限公司
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