Sewage treatment integrated equipment for chemical industry park

Abstract

The invention discloses sewage treatment integrated equipment for a chemical industry park. Comprising a box body, and an equipment chamber and a reaction chamber are arranged in the box body; ozone generation equipment, a sodium hypochlorite solution storage tank and control equipment are arranged in the equipment chamber; the interior of the reaction chamber is divided into an ozone reaction chamber and a chlorination reaction chamber which are communicated end to end through a partition plate; a raw water distribution pipe and an ozone solution distribution pipe are arranged at the head of the ozone reaction chamber; a sodium hypochlorite solution water distribution pipe is arranged at the head part of the chlorination reaction chamber, and a water drainage pipe is arranged at the tail part of the chlorination reaction chamber; a water outlet of the ozone dissolved air tank is communicated with an ozone solution water distribution pipe through a pipeline; and the sodium hypochlorite solution distribution pipe is communicated with the sodium hypochlorite solution storage tank through a pipeline. By adopting a combined process of ozone oxidation and sodium hypochlorite oxidation, sewage containing more ammonia nitrogen and organic matters in the chemical industrial park can be efficiently treated.

Description

Technical Field

[0001] The present invention relates to an integrated sewage treatment device for chemical industrial parks, and more specifically to an integrated device for treating sewage from chemical industrial parks containing a relatively large amount of ammonia nitrogen and organic matter. Background Art

[0002] The chemical industry is an industry that exists worldwide. Its sewage output is large and difficult to treat. The demand for sewage treatment in chemical industrial parks is widespread. It is necessary not only to treat the sewage generated by a chemical industrial park stably for a long time, but also to treat accidental sewage pollution in chemical industrial parks at any time. When dealing with small-scale and accidental pollution, the integrated treatment device has good application value due to its advantages of rapid response and convenient operation.

[0003] Since ammonia nitrogen and various organic matters are common chemical raw materials, they are important components in the sewage of chemical industrial parks. The sewage of chemical industrial parks is not suitable for biological treatment because it often contains toxic substances, and even if microorganisms can adapt and survive, the treatment efficiency is very low. Compared with the biological method, the chemical method is more applicable. Most of the organic matters in the sewage of chemical industrial parks are refractory organic matters and should be treated by advanced oxidation methods, specifically including Fenton, ozone oxidation, etc. Although advanced oxidation has strong oxidation ability, its oxidation efficiency for ammonia nitrogen is very limited. Summary of the Invention

[0004] To overcome the above defects, the purpose of the present invention is to provide an integrated sewage treatment device that uses a combination of ozone oxidation and sodium hypochlorite oxidation to remove organic matter and ammonia nitrogen in the sewage of chemical industrial parks.

[0005] To achieve the above purpose, an integrated sewage treatment device for a chemical industrial park of the present invention includes:

[0006] A box body, in which an equipment room and a reaction room are arranged;

[0007] An ozone generation device, a sodium hypochlorite solution storage tank and a control device are arranged in the equipment room;

[0008] In the reaction room, it is separated into an ozone reaction room and a chlorine addition reaction room that are connected end to end by a partition;

[0009] A raw water distribution pipe and an ozone solution distribution pipe are arranged at the head of the ozone reaction room; a sodium hypochlorite solution distribution pipe is arranged at the head of the chlorine addition reaction room, and a drain pipe is arranged at the tail of the chlorine addition reaction room;

[0010] The ozone generation device includes an ozone generator and an ozone dissolving tank, and the ozone generated by the ozone generator enters the ozone dissolving tank through a pipeline;

[0011] An inlet and an outlet are provided on the ozone dissolution tank. An ozone dissolution water pipe is provided at the inlet of the ozone dissolution tank for pumping the clear water near the drain pipe of the chlorine addition reaction chamber into the ozone dissolution tank. The inlet of the ozone dissolution water pipe is lower than the drain pipe. The outlet of the ozone dissolution tank is communicated with an ozone solution distribution pipe through a pipeline.

[0012] The sodium hypochlorite solution distribution pipe is connected to a sodium hypochlorite solution storage tank through a pipeline.

[0013] Further, the raw water distribution pipe is located at the lower part of the ozone reaction chamber.

[0014] Further, the water flow directions of both the ozone reaction chamber and the chlorine addition reaction chamber are from bottom to top.

[0015] Further, the water discharged above the tail of the ozone reaction chamber enters the chlorine addition reaction chamber from below the head of the chlorine addition reaction chamber after passing through a pipeline or a channel.

[0016] The present invention has the following advantages:

[0017] (1) The integrated equipment adopts a combined process of ozone oxidation and sodium hypochlorite oxidation, which can efficiently treat the sewage containing more ammonia nitrogen and organic matter in chemical industrial parks.

[0018] (2) All equipment is integrated in a cuboid box body and is equipped with a PLC control system, with a simple and beautiful appearance and easy operation.

[0019] (3) After the ozone oxidation process, the sodium hypochlorite oxidation process is carried out. Sodium hypochlorite has a decomposition effect on ozone, reducing tail gas pollution. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of an integrated sewage treatment equipment for chemical industrial parks according to the present invention;

[0021] Among them:

[0022] 11 - ozone generator; 12 - ozone dissolution tank; 13 - ozone dissolution water pipe; 14 - ozone solution distribution pipe; 2 - display and control cabinet; 31 - sodium hypochlorite solution storage tank; 32 - sodium hypochlorite solution feed inlet; 33 - sodium hypochlorite solution distribution pipe; 41 - raw water inlet; 42 - raw water distribution pipe; 51 - ozone reaction chamber; 52 - ozone oxidation catalyst; 6 - chlorine addition reaction chamber; 7 - drain pipe. Detailed Embodiments

[0023] The embodiments of the present invention will be described in detail below with reference to the drawings.

[0024] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0025] The terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0026] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] As Figure 1 shown, an integrated equipment for sewage treatment in a chemical industrial park includes two parts: ozone oxidation for removing organic matters and sodium hypochlorite oxidation for removing ammonia nitrogen. All the equipment is integrated in a rectangular parallelepiped box body, which is divided into three small rectangular parallelepiped box bodies. Ozone oxidation and sodium hypochlorite oxidation respectively occupy one box body, and the supporting facilities are integrated in one box body.

[0028] Among them, the ozone generator 11 uses an air source to suck air to generate ozone. The generated ozone enters the ozone dissolution tank 12. The purified water is pumped into the ozone dissolution tank through the ozone dissolution water pipe 13 by a water pump. The water inlet of the ozone dissolution water pipe 13 is lower than the drain pipe 7, and the ozone is pre-dispersed into the water in the form of tiny bubbles in advance to improve the ozone utilization efficiency, and then enters the lower part of the ozone reaction chamber 51 through the ozone solution distribution pipe 14. An ozone oxidation catalyst is filled in the ozone reaction chamber.

[0029] The sodium hypochlorite solution comes from external supplementation and is stored in the sodium hypochlorite solution storage tank 31. A sodium hypochlorite solution feed inlet 32 is opened above the storage tank. When the equipment operates, the sodium hypochlorite solution is pumped from the storage tank by a metering pump and added to the lower part of the chlorination reaction chamber through the sodium hypochlorite solution distribution pipe 33. The sodium hypochlorite solution storage tank does not necessarily store the sodium hypochlorite solution, and it may also be other chlorine with oxidation ability, such as chlorine solution.

[0030] For the convenience of operation with a close distance between the feed inlets, the raw water inlet 41 is arranged near the sodium hypochlorite solution storage tank and is added to the lower part of the ozone reaction chamber through the raw water distribution pipe.

[0031] The display and control cabinet 2 is placed between the ozone generator and the sodium hypochlorite solution storage tank, with a height of about 1.5 m. It is used to display various parameters such as ozone concentration, gas flow rate, and water flow rate; and is used to control the switches of various parts such as the ozone generator and the water pump.

[0032] The water flow directions of both ozone oxidation and sodium hypochlorite oxidation are from bottom to top. The water outlet above the ozone oxidation passes through the transition chamber composed of two partitions and then enters the chlorination reaction chamber from below; it can also be connected through pipelines.

[0033] The integrated device of the present invention is made of corrosion-resistant stainless steel and is ensured to be sealed. At the necessary connections with the outside world (including the material exchange parts such as the sodium hypochlorite solution feed inlet, and the openings such as the observation port and the maintenance port), it is ensured that they can be closed and sealed at any time.

[0034] The present invention has been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention. Many other changes and modifications made without departing from the concept and scope of the present invention should be regarded as within the protection scope of the present invention.

[0035] In the description of this specification, the specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0036] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An integrated equipment for sewage treatment in a chemical industrial park, characterized in that, Comprising: A box body, in which an equipment room and a reaction room are arranged; In the equipment room, an ozone generation device, a sodium hypochlorite solution storage tank and a control device are arranged; In the reaction room, it is separated into an ozone reaction room and a chlorine addition reaction room which are connected end to end by a partition; At the head of the ozone reaction room, a raw water distribution pipe and an ozone solution distribution pipe are arranged; at the head of the chlorine addition reaction room, a sodium hypochlorite solution distribution pipe is arranged, and at the tail of the chlorine addition reaction room, a drain pipe is arranged; The ozone generation device includes an ozone generator and an ozone dissolution tank, and the ozone generated by the ozone generator enters the ozone dissolution tank through a pipeline; An inlet and an outlet are arranged on the ozone dissolution tank. An ozone dissolution water pipe is arranged at the inlet of the ozone dissolution tank for pumping the clear water near the drain pipe of the chlorine addition reaction room into the ozone dissolution tank. The water inlet of the ozone dissolution water pipe is lower than the drain pipe; the outlet of the ozone dissolution tank is connected to the ozone solution distribution pipe through a pipeline; The sodium hypochlorite solution distribution pipe is connected to the sodium hypochlorite solution storage tank through a pipeline.

2. The integrated equipment for sewage treatment in a chemical industrial park according to claim 1, characterized in that, The raw water distribution pipe is located at the lower part of the ozone reaction room.

3. An integrated chemical industrial park sewage treatment device as claimed in claim 1, characterized in that, The water flow directions of both the ozone reaction room and the chlorine addition reaction room are from bottom to top.

4. An integrated chemical industrial park sewage treatment device according to claim 1, characterized in that, The water discharged above the tail of the ozone reaction room enters the chlorine addition reaction room from below the head of the chlorine addition reaction room after passing through a pipeline or a channel.

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