Rapid treatment combined device for abnormal operation of high-activity sludge process in industrial sewage treatment

Abstract

The utility model discloses a rapid treatment combined device for abnormal operation of a high-activity sludge process in industrial sewage treatment. The rapid treatment combined device comprises a biochemical pool, a total activated sludge distribution device, a pulse gas stripping sludge discharge device and a gas-solid-liquid separator, wherein at least one pulse gas stripping sludge discharge device is arranged in each biochemical pool; the main activated sludge distribution device comprises a main activated sludge pipe, a plurality of sludge inlet branch pipes are arranged on one side of the main activated sludge pipe, a plurality of sludge outlet branch pipes are arranged on the other side of the main activated sludge pipe, sludge inlets of the sludge inlet branch pipes are connected with a sludge outlet of the gas-solid-liquid separator, and sludge outlets of the sludge outlet branch pipes extend into the biochemical pool; a distribution sludge discharge automatic valve is arranged on each sludge discharge branch pipe, and a gas stripping sludge discharge automatic valve is arranged on an outlet pipeline of each pulse gas stripping sludge discharge device. The device can quickly solve the problems of sludge bulking, aging, sludge floating and poor settleability, can ensure that biochemical activated sludge quickly recovers normal operation and treatment efficiency, and realizes long-period safe operation.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of industrial sewage / urban sewage treatment high activity sludge method, concretely relates to a kind of quick processing combination device of high activity sludge method operation exception in industrial sewage treatment. BACKGROUND

[0002] With the rapid development of industrialization of our country, the improvement of economic level, the water production of industrial wastewater, domestic sewage is also increasing greatly, a large number of sewage treatment plants are built in the country, and the removal mode of pollutants determines the process flow of sewage treatment, and the activated sludge method is the most widely used and mature in sewage treatment process. The treatment effect of activated sludge method is very good. This technology can effectively remove organic matter, suspended solids and nutrients such as nitrogen and phosphorus in wastewater, so that the water quality after treatment meets or even exceeds the relevant national discharge standards. The main reason is that the microorganisms used in activated sludge method have very high biological activity and degradation capacity, which can rapidly and effectively decompose harmful substances in wastewater. The treatment process of activated sludge method is relatively flexible. According to different characteristics of wastewater, the treatment parameters of activated sludge method can be adjusted, such as sludge concentration, dissolved oxygen concentration, water temperature, etc., to achieve the best treatment effect. Activated sludge method can also adapt to different treatment needs by changing the structure of the reactor, such as plug flow, complete mixing and sequencing batch, etc.

[0003] Most of the industrial wastewater treatment processes use activated sludge method, and the operation and management of activated sludge method are relatively simple. Compared with other wastewater treatment technologies, activated sludge method does not require complex equipment maintenance and operation, only needs regular monitoring and adjustment to ensure stable operation of the system. At the same time, the automation degree of activated sludge method is high, which can greatly reduce the labor intensity of workers. In order to solve the problems of low treatment efficiency and low volume load of treatment facilities, first of all, the sludge concentration is improved. However, under the condition of high load sludge concentration, problems such as oxygenation equipment efficiency, operation management and sludge bulking may occur.

[0004] Therefore, it is urgent to design an industrial wastewater high-multiplication activated sludge method-operation exception quick solution to solve this problem. Utility model content

[0005] The utility model aims at providing a kind of quick processing combination device of high activity sludge method operation exception in industrial sewage treatment, to solve the problems of sludge bulking, aging, floating sludge and poor settling property, to ensure the rapid recovery of biochemical activated sludge to normal operation and treatment efficiency, and realize long-period safe operation.

[0006] In order to achieve the above object, the utility model adopts the technical scheme, which is a quick treatment combination device for abnormal operation of high-activity sludge method in industrial sewage treatment, which comprises a biochemical pool, an activated sludge total distribution device, a pulse air-lift sludge discharge device and a gas-solid-liquid separator.

[0007] The biochemical pool is provided with at least two seats, and at least one pulse air-lift sludge discharge device is arranged in each seat of the biochemical pool.

[0008] The activated sludge total distribution device comprises an activated sludge main pipe, a plurality of sludge inlet branch pipes are arranged on one side of the activated sludge main pipe, and a plurality of sludge discharge branch pipes are arranged on the other side of the activated sludge main pipe, the sludge inlet of the sludge inlet branch pipe is connected with the sludge outlet of the gas-solid-liquid separator, the sludge discharge branch pipe is inserted into the biochemical pool, and a distribution sludge discharge automatic valve is arranged on each sludge discharge branch pipe.

[0009] The pulse air-lift sludge discharge device is arranged in the biochemical pool, the outlet of the pulse air-lift sludge discharge device is connected with the inlet of the gas-solid-liquid separator, and a gas-lift sludge discharge automatic valve is arranged on the outlet pipeline of each pulse air-lift sludge discharge device.

[0010] Further, the quick treatment combination device further comprises a sludge storage pool, the sludge storage pool is provided with a pulse air-lift sludge discharge device, the outlet of the pulse air-lift sludge discharge device is connected with the inlet of a gas-solid-liquid separator, and a gas-lift sludge discharge automatic valve is arranged on the outlet pipeline of the pulse air-lift sludge discharge device, and a sludge discharge branch pipe is arranged on the activated sludge main pipe and inserted into the sludge storage pool, and a distribution sludge discharge automatic valve is arranged on the sludge discharge branch pipe.

[0011] Still further, a liquid level instrument is arranged in the sludge storage pool, and the liquid level instrument is connected with an automatic control cabinet through a signal line.

[0012] Further, a sludge concentration instrument is arranged in the biochemical pool, and the sludge concentration instrument is connected with the automatic control cabinet through a signal line.

[0013] Still further, the automatic control cabinet is connected with each gas-lift sludge discharge automatic valve and distribution sludge discharge automatic valve, and controls the opening and closing of each gas-lift sludge discharge automatic valve and distribution sludge discharge automatic valve.

[0014] Further, a sludge discharge outlet is arranged at one end of the activated sludge main pipe, and a sludge discharge automatic valve is arranged at the sludge discharge outlet, the sludge discharge automatic valve is connected with the automatic control cabinet, and the automatic control cabinet controls the opening and closing of the sludge discharge automatic valve.

[0015] Further, two pulse air-lift sludge discharge devices are arranged in each seat of the biochemical pool, and one gas-solid-liquid separator is arranged corresponding to each pulse air-lift sludge discharge device.

[0016] Further, the biochemical pool is provided with three or four or more seats.

[0017] Further, the gas outlet of the gas-solid-liquid separator is connected to the adjusting pool through an exhaust pipeline to deliver the recovered gas to the adjusting pool for stirring and mixing of the sewage.

[0018] Compared with the prior art, the beneficial effects of the device are as follows: the device can dispose and utilize the activated sludge in each biochemical pool, has a simple operation method for quickly solving problems, and can quickly restore normal operation of the treatment system.

[0019] The additional aspects and advantages of the device will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the device. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the overall structure schematic diagram of the device;

[0021] Figure 2 is the side sectional view of the device.

[0022] Marked in the figure: 1-biochemical pool, 2-pulse gas stripping sludge discharge device, 3-gas-solid-liquid separator, 4-sludge storage pool, 5-activated sludge main pipe, 6-sludge inlet branch pipe, 7-sludge discharge branch pipe, 8-gas stripping sludge discharge automatic valve, 9-distribution sludge discharge automatic valve, 10-storage pool distribution sludge discharge automatic valve, 11-sludge discharge outlet, 12-sludge discharge automatic valve, 13-liquid level instrument, 14-sludge concentration instrument, 15-exhaust pipeline. DETAILED DESCRIPTION

[0023] The device will be described in detail below in combination with the drawings and specific embodiments.

[0024] For example, Figure 1 and 2As shown, a quick processing combined device for abnormal operation of high activity sludge method in industrial sewage treatment includes a biochemical pool 1, an activated sludge total distribution device, a pulse air-lift sludge discharge device 2, a gas-solid-liquid separator 3 and a sludge storage pool 4. The biochemical pool 1 is provided with three or four seats, and two pulse air-lift sludge discharge devices 2 are arranged in each biochemical pool 1. The activated sludge total distribution device includes an activated sludge main pipe 5, which is located above one end of the biochemical pool 1. A plurality of sludge inlet branch pipes 6 are arranged on one side of the activated sludge main pipe 5, and a plurality of sludge discharge branch pipes 7 are arranged on the other side. The sludge inlet of the sludge inlet branch pipe 6 is connected to the sludge outlet of the gas-solid-liquid separator 3, and the sludge discharge outlet of the sludge discharge branch pipe 7 extends into the biochemical pool 1, and a distribution sludge discharge automatic valve 9 is arranged on each sludge discharge branch pipe 7. The outlet of the pulse air-lift sludge discharge device 2 is connected to the inlet of the gas-solid-liquid separator 3, and a gas-lift sludge discharge automatic valve 8 is arranged on the outlet pipeline of each pulse air-lift sludge discharge device 2. In addition, a pulse air-lift sludge discharge device 2 is also arranged in the sludge storage pool 4, the outlet of which is connected to the inlet of a gas-solid-liquid separator 3 and a gas-lift sludge discharge automatic valve 2 is arranged on the outlet pipeline thereof, and a sludge discharge branch pipe is arranged on the activated sludge main pipe 5 to extend into the sludge storage pool 4, and a storage pool distribution sludge discharge automatic valve 10 is arranged on the sludge discharge branch pipe.

[0025] In this embodiment, the gas-solid-liquid separator 3 and the pulse air-lift sludge discharge device 2 are supplied with air by the biological pool aeration blower to realize sludge lifting, and the air carried in the sludge is separated from the sludge by the gas-solid-liquid separator 3, and the recovered air is used to stir the sewage in the adjusting pool. Two pulse air-lift sludge discharge devices 2 are arranged in each biochemical pool 1, and one gas-solid-liquid separator 3 is arranged corresponding to each pulse air-lift sludge discharge device 2. The gas outlets of the gas-solid-liquid separators 3 are connected to the adjusting pool through a gas discharge pipeline 15.

[0026] In this embodiment, one end of the activated sludge main pipe is provided with a sludge discharge port 11, and the sludge discharge port 11 is provided with a sludge discharge automatic valve 12, which is connected with the automatic control cabinet. The automatic control cabinet controls the opening and closing of the sludge discharge automatic valve 12. Meanwhile, a liquid level instrument 13 is arranged in the sludge storage tank 4, which is connected to the automatic control cabinet through a signal line. A sludge concentration instrument 14 is arranged in the biochemical tank 1, which is connected to the automatic control cabinet through a signal line. The automatic control cabinet is connected with each air-lift sludge discharge automatic valve 8 and distribution sludge discharge automatic valve 9, and controls the opening and closing of each air-lift sludge discharge automatic valve 8 and distribution sludge discharge automatic valve 9. The air-lift sludge discharge automatic valve 8 is interlocked with the pulse air-lift sludge discharge device gas source automatic control electromagnetic valve, and when the pulse air-lift sludge discharge device gas source automatic control electromagnetic valve of the A tank / B tank / C tank is opened to discharge sludge, the corresponding air-lift sludge discharge automatic valve 8 is opened to realize the free switching of the sludge supplement or replacement of the activated sludge in the in-out sludge total distribution device.

[0027] In this way, the opening and closing of each automatic valve and the starting of the corresponding pulse air-lift sludge discharge device can realize the sludge exchange-replacement-replacement of the activated sludge in each biological tank. For example, when the activated sludge in the C tank is bloated, aged, floating, poor in settling property, etc., the pulse air-lift sludge discharge device and the in-out activated sludge total distribution device can be used to quickly supplement the activated sludge in the C tank from any one of the B / A tank, which is automatically executed by the PLC automatic control, so as to quickly solve the problem of the high-multiplying biological activated sludge method.

[0028] The principle and control process of the rapid treatment combined device are as follows:

[0029] The activated sludge main pipe is arranged above the activated sludge tank 3, 4, 6, 8, and 10. Two pulse air-lift sludge discharge devices are arranged in each tank, two sludge inlet branch pipes 6 and one sludge discharge branch pipe 7 are arranged on the activated sludge main pipe 5, and a separate sludge discharge branch pipe is arranged to directly lead to the sludge storage tank. The activated sludge main pipe 5 is provided with a sludge discharge port + automatic valve at one end.

[0030] For example, the A tank, B tank, C tank, and D tank are numbered as the 4-tank. When the activated sludge in the B tank is affected by the water quality and quantity fluctuation, the biological bacteria die, the sludge is bloated, aged, floating, poor in settling property, and the sludge concentration is low, etc. The activated sludge in the A tank, C tank, or D tank is started to supplement the activated sludge in the B tank. The starting mode is as follows: any one of the pulse air-lift sludge discharge devices connected with the activated sludge main pipe distribution of the A tank, C tank, or D tank is opened, and the corresponding air-lift sludge discharge automatic valve is opened, and the distribution sludge discharge automatic valve on the sludge discharge branch pipe of the B tank is opened, so as to supplement the activated sludge in the B tank, and realize the rapid solution of the activated sludge exchange-replacement-replacement.

[0031] Example: 4 pool number A pool, B pool, C pool, D pool, such as D pool running active sludge is generated by water quality, water quantity fluctuation impact, biological bacteria death, sludge expansion, aging, floating sludge, poor settling, sludge concentration bottom and other problems. That is, start A pool or C pool or B pool or C pool running normal activated sludge to D pool to supplement activated sludge. Start mode: open A pool or B pool or C pool total pipe distribution device connected to the pulse air-lift sludge discharge device and its corresponding air-lift sludge discharge automatic valve, and simultaneously open the distribution sludge discharge automatic valve on the sludge discharge branch pipe in D pool, that is, to supplement activated sludge to B pool, and realize the rapid solution of activated sludge exchange-replacement-replacement.

[0032] Example: 4 pool number A pool, B pool, C pool, D pool, if A pool, B pool, C pool, D pool, through the sludge concentration instrument monitoring, the activated sludge exceeds the running control value 65000mg / l during operation, that is, start the activated sludge discharge method. Start mode: open A pool, B pool, C pool, D pool total pipe distribution device connected to the pulse air-lift sludge discharge device and its corresponding air-lift sludge discharge automatic valve, simultaneously open the sludge discharge port and sludge discharge automatic valve at the end of the total pipe and / or simultaneously open the reserve pool distribution sludge discharge automatic valve in the sludge reserve pool, and discharge the excess activated sludge to the sludge treatment pool or sludge reserve pool. If the liquid level instrument in the sludge reserve pool monitors that the liquid level reaches the control value, close the reserve pool distribution sludge discharge automatic valve, and only open the sludge discharge port and sludge discharge automatic valve.

[0033] Example: When the activated sludge of A pool, B pool, C pool, D pool is less than 5500mg / l, the pulse air-lift sludge discharge device is started to supplement the sludge in the sludge reserve pool to A pool, B pool, C pool, D pool. Start mode: open the distribution sludge discharge automatic valve on the A pool, B pool, C pool, D pool total pipe distribution device, and simultaneously open the pulse air-lift sludge discharge device and its corresponding air-lift sludge discharge automatic valve in the sludge reserve pool, that is, to supplement activated sludge to A pool, B pool, C pool, D pool, and realize the rapid solution of activated sludge exchange-replacement-replacement.

[0034] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the above examples do not limit the protection scope of the present application in any form, and any technical solutions obtained by equivalent replacement or the like fall within the protection scope of the present application. The parts not involved in the present application are the same as or can be realized by the prior art.

Claims

1. A quick processing combination device for abnormal operation of high activity sludge process in industrial sewage treatment, characterized in that, The biochemical tank, the activated sludge total distribution device, the pulse air stripping sludge discharge device and the gas-solid-liquid separator are included. At least two biochemical tanks are arranged, and at least one pulse air stripping sludge discharge device is arranged in each biochemical tank. The activated sludge total distribution device includes an activated sludge total pipe, which is arranged above the biochemical tank, a plurality of sludge inlet branch pipes are arranged on one side of the activated sludge total pipe, and a plurality of sludge discharge branch pipes are arranged on the other side, the sludge inlet of the sludge inlet branch pipe is connected to the sludge outlet of the gas-solid-liquid separator, the sludge discharge branch pipe is inserted into the biochemical tank, and a distribution sludge discharge automatic valve is arranged on each sludge discharge branch pipe. The pulse air stripping sludge discharge device is arranged in the biochemical tank, the outlet of the pulse air stripping sludge discharge device is connected to the inlet of the gas-solid-liquid separator, and an air stripping sludge discharge automatic valve is arranged on the outlet pipeline of each pulse air stripping sludge discharge device.

2. The quick processing combined device for abnormal operation of intermediate-high active sludge process in industrial sewage treatment according to claim 1, characterized in that, The rapid treatment combined device further includes a sludge storage tank, the sludge storage tank is provided with a pulse air stripping sludge discharge device, the outlet of the pulse air stripping sludge discharge device is connected to the inlet of a gas-solid-liquid separator, and an air stripping sludge discharge automatic valve is arranged on the outlet pipeline of the pulse air stripping sludge discharge device, and a sludge discharge branch pipe is arranged on the activated sludge total pipe and inserted into the sludge storage tank, and a distribution sludge discharge automatic valve is arranged on the sludge discharge branch pipe.

3. The quick processing combined device for abnormal operation of intermediate-high active sludge process in industrial sewage treatment according to claim 2, characterized in that, A liquid level instrument is arranged in the sludge storage tank, and the liquid level instrument is connected to the automatic control cabinet through a signal line.

4. The quick processing combined device for abnormal operation of intermediate-high active sludge process in industrial sewage treatment according to claim 1, characterized in that, A sludge concentration instrument is arranged in each biochemical tank, and the sludge concentration instrument is connected to the automatic control cabinet through a signal line.

5. The quick processing combined device for abnormal operation of intermediate-high active sludge process in industrial sewage treatment according to claim 3 or 4, characterized in that, The automatic control cabinet is connected to each air stripping sludge discharge automatic valve and distribution sludge discharge automatic valve, and controls the opening and closing of each air stripping sludge discharge automatic valve and distribution sludge discharge automatic valve.

6. The quick processing combined device for abnormal operation of intermediate-high active sludge process in industrial sewage treatment according to claim 1, characterized in that, A sludge discharge automatic valve is arranged at one end of the activated sludge total pipe, and the sludge discharge automatic valve is connected to the automatic control cabinet, and the automatic control cabinet controls the opening and closing of the sludge discharge automatic valve.

7. The quick processing combined device for abnormal operation of intermediate-high active sludge process in industrial sewage treatment according to claim 1, characterized in that, Two pulse air stripping sludge discharge devices are arranged in each biochemical tank, and one gas-solid-liquid separator is arranged corresponding to each pulse air stripping sludge discharge device.

8. The quick processing combined device for abnormal operation of intermediate-high active sludge process in industrial sewage treatment according to claim 1, characterized in that, The biochemical tank is provided with three or four biochemical tanks.

9. The quick processing combined device for abnormal operation of intermediate-high active sludge process in industrial sewage treatment according to claim 1, characterized in that, The gas outlet of the gas-solid-liquid separator is connected to the adjusting tank through a gas discharge pipeline.

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