CN212102481U - Industrial wastewater treatment system - Google Patents

Abstract

The utility model discloses an industrial wastewater treatment system, which comprises a wastewater tank, a preliminary sedimentation tank group, a preliminary filter tank, a first fiber ball filter tank, an anaerobic tank, a biochemical tank, a second fiber ball filter tank, a recovery water tank and a discharge tank which are connected in sequence, wherein the output ends of the biochemical tank, the preliminary filter tank and the first fiber ball filter tank are also connected with the input end of a sludge treatment system; the first fiber ball filtering tank and the second fiber ball filtering tank are arranged, so that heavy metals are removed, and the heavy metals and suspended matters are prevented from entering a subsequent biological section to cause toxicity and adverse effects on microorganisms; after the waste water is treated, on the one hand, sludge impurities are recovered through a sludge treatment system, on the other hand, the treated water is recycled through a recovery water tank, so that the resource waste is avoided, and the production cost of the recycled water can be reduced.

Description

Industrial wastewater treatment system

Technical Field

The utility model relates to a waste water treatment field especially relates to a processing system of industrial waste water.

Background

Industrial wastewater refers to wastewater, sewage and waste liquid produced in the process of industrial production, which contains industrial production materials, intermediate products and products lost with water, and pollutants produced in the production process. Because industrial wastewater contains a large amount of water-insoluble particulate matters and water-soluble chemical pollutants, if the industrial wastewater is directly discharged to the outside, the industrial wastewater is bound to pollute the environment and influence human health.

The prior art has the defects of single treatment method of waste water, poor treatment effect, direct discharge of the treated waste water to the outside after meeting the environmental protection requirement, no recycling of the treated waste water, resource waste and production cost increase.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides an industrial wastewater treatment system which reduces the treatment cost and improves the treatment effect.

In order to realize the purpose, the utility model discloses a technical scheme is:

the utility model provides an industrial effluent disposal system, includes wastewater disposal basin, preliminary sedimentation tank group, preliminary filter, first fibre ball filtering ponds, anaerobism pond, biochemical pond, second fibre ball filtering ponds, recovery pond and the blow-down tank that connects gradually, the output of biochemical pond, preliminary filter and first fibre ball filtering ponds still is connected with sludge treatment system's input.

As a further improvement of the scheme, the sludge treatment system comprises a sludge concentration tank and a filter press which are sequentially connected, and the output ends of the biochemical tank, the primary filter tank and the first fiber ball filter tank are connected with the input end of the sludge concentration tank.

As a further improvement of the scheme, the liquid discharge ports of the sludge concentration tank and the filter press are connected with the input end of the primary sedimentation tank group.

As a further improvement of the scheme, the preliminary sedimentation tank group comprises three preliminary sedimentation tanks which are connected in parallel, liquid discharge ports of the three preliminary sedimentation tanks are connected with the input end of the preliminary sedimentation tank, and the three preliminary sedimentation tanks discharge liquid intermittently respectively.

As a further improvement of the scheme, the biochemical tank is internally provided with active carbon, and the bottom of the biochemical tank is provided with an oxygen supply device.

As a further improvement of the scheme, a filtering screen is arranged in the primary filter.

As a further improvement of the scheme, a dosing device is arranged on the primary filter tank and comprises an acid adding device and a chelating agent adding device.

The utility model has the advantages that:

the utility model relates to an industrial wastewater treatment system, which is provided with a first fiber ball filtering tank and a second fiber ball filtering tank, thereby avoiding the heavy metal and suspended solids from entering a subsequent biological section to cause toxicity and adverse effect on microorganisms while removing the heavy metal; after the wastewater is treated, sludge and magazines are recovered through the sludge treatment system on the one hand, and on the other hand, the treated water is recycled through the recovery water tank, so that the resource waste is avoided, and the production cost of the recycled water can be reduced.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. Obviously, the described figures are only some embodiments of the invention, not all embodiments, and other designs and figures can be obtained by those skilled in the art without inventive effort, based on these figures: fig. 1 is a schematic flow chart of a preferred embodiment of the present invention.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention.

Referring to fig. 1, an industrial wastewater treatment system, comprising: comprises a wastewater tank 1, a preliminary sedimentation tank group, a preliminary filter tank 3, a first fiber ball filter tank 4, an anaerobic tank 5, a biochemical tank 6, a second fiber ball filter tank 7, a recovery water tank 8 and a discharge tank 9 which are connected in sequence. Active carbon is arranged in the biochemical tank 6, and an oxygen supply device is arranged at the bottom of the biochemical tank 6. The activated carbon can adsorb and remove organic matters in water, and due to the oxygen supply of the oxygen supply device, a large number of microorganisms can grow on the surface of the activated carbon, and the microorganisms can gradually decompose and remove the organic matters adsorbed by the activated carbon, so that the activated carbon keeps the adsorption capacity.

Be provided with filter screen in the preliminary filtering pond 3, filter screen can filter the solid impurity in the waste water well, be provided with charge device on the preliminary filtering pond 3, charge device adds the device including sour interpolation device and chelating agent. The micro colloid is removed by adopting the adsorption filtration of the fiber balls, an ultrafiltration system is not adopted, the fiber balls can be effectively cleaned, and the high operation cost caused by replacing the ultrafiltration membrane is avoided.

Preliminary sedimentation tank group includes three preliminary sedimentation tank 2 that connect in parallel each other, and the leakage fluid dram of three preliminary sedimentation tank 2 all is connected with the input of preliminary filter 3, and three preliminary sedimentation tank 2 is intermittent type flowing back respectively. When carrying out the operation of coagulating, sediment and drainage after one preliminary sedimentation tank 2 holds full water promptly, another preliminary sedimentation tank 2 is held retaining, and 2 standby uses in the preliminary sedimentation tank in addition, and intermittent type handles the efficiency that can improve the processing.

The sludge treatment system comprises a sludge concentration tank 10 and a filter press 11 which are connected in sequence, and the output ends of the biochemical tank 6, the primary filter tank 3 and the first fiber ball filter tank 4 are connected with the input end of the sludge concentration tank 10. The liquid discharge ports of the sludge concentration tank 10 and the filter press 11 are connected with the input end of the primary sedimentation tank group. The discharge gate of sludge concentration tank 10 accesss to pressure filter 11, the supernatant of sludge concentration tank 10 and sludge concentration tank 11 all discharges into preliminary sedimentation tank and carries out the circulation and deposit, handles waste water more rationally, and the treatment effect is better.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited thereto, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (7)

1. An industrial wastewater treatment system, characterized in that: including wastewater disposal basin (1), preliminary sedimentation tank group, preliminary filter (3), first fibre ball filtering ponds (4), anaerobism pond (5), biochemical pond (6), second fibre ball filtering ponds (7), recovery pond (8) and blow tank (9) that connect gradually, the output of biochemical pond (6), preliminary filter (3) and first fibre ball filtering ponds (4) still is connected with sludge treatment system's input.

2. The industrial wastewater treatment system of claim 1, wherein: the sludge treatment system comprises a sludge concentration tank (10) and a filter press (11) which are sequentially connected, and the output ends of the biochemical tank (6), the primary filter tank (3) and the first fiber ball filter tank (4) are connected with the input end of the sludge concentration tank (10).

3. The industrial wastewater treatment system of claim 2, wherein: and the liquid discharge ports of the sludge concentration tank (10) and the filter press (11) are connected with the input end of the primary sedimentation tank group.

4. The industrial wastewater treatment system of claim 1, wherein: preliminary sedimentation tank organizes including three preliminary sedimentation tank (2) that connect in parallel each other, and the leakage fluid dram of three preliminary sedimentation tank (2) all is connected with the input of preliminary filter (3), and three preliminary sedimentation tank (2) are intermittent type flowing back respectively.

5. The industrial wastewater treatment system of claim 1, wherein: active carbon is arranged in the biochemical tank (6), and an oxygen supply device is arranged at the bottom of the biochemical tank (6).

6. The industrial wastewater treatment system of claim 1, wherein: and a filtering screen is arranged in the primary filter tank (3).

7. The industrial wastewater treatment system of claim 1, wherein: and a dosing device is arranged on the primary filter tank (3), and comprises an acid adding device and a chelating agent adding device.

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