WO2016029877A1 - Sewage treatment apparatus - Google Patents

Abstract

A sewage treatment apparatus comprises a power supply device and a reactor. The power supply device is used for providing electric energy to the reactor. The reactor comprises a water inlet pipe (3), a drainage pipe (8), a shell (4) and an inner container (6) arranged in the shell. A water inlet used for inserting the inlet pipe (3) and a first water outlet used for inserting the drainage pipe (8) are provided on the shell (4), and the height of the water inlet on the shell (4) is higher than that of the water outlet on the shell (4). An electrode plate (9) used for purifying the sewage entering the inner container (6) and a second water outlet used for inserting the drainage pipe (8) are provided in the inner container (6). The sewage entering the shell (4) through the water inlet pipe (3) enters the inner container (6) from the bottom thereof, and the sewage purified by the electrode plate (9) is discharged by the drainage pipe (8) inserting in the inner container (6) through the first water outlet and the second water outlet.

Description

Sewage treatment plant Technical field

The present invention relates to a technique suitable for treating dispersed sewage, and more particularly to a sewage treatment device.

Background technique

The shortage of water resources in China, the increase in population and the rapid development of the economy have made the water environment pollution increasingly severe. With the continuous development of agriculture, especially pesticides and the frequent use of chemical fertilizers, the problem of rural sewage treatment is particularly serious. Moreover, rural areas, especially in remote areas, are relatively scattered, and the natural conditions and economic conditions vary widely. It is impossible to adopt a unified sewage treatment model. Moreover, the construction of large-scale sewage treatment facilities in rural areas not only covers an area, but also has a large smell. And the construction cost is high, and it takes a lot of electricity. Small rural decentralized sewage treatment plants can be used to solve this problem. Small rural decentralized sewage can realize on-site treatment of sewage, without the need to build long pipelines, save investment in pipe network, easy to install, occupying small size, simple maintenance, and strong water quality adaptability.

Chinese scholars have also achieved a number of important achievements in the research and invention of rural decentralized sewage treatment plants. The publication number is CN102107984 A, which is named “Integrated Device for Rural Dispersed Sewage Treatment”. The device combines sedimentation tank technology, biological contact oxidation pond technology and subsurface flow constructed wetland technology, with simple management and low operating energy consumption. The treatment effect is excellent. However, placing these three units in a miniaturized device may result in a relatively large mutual influence of the units, and the device is difficult to manufacture; the device requires external power supply and still requires a certain cost. The publication number is CN103708617A, which is called “an assembled three-dimensional A2/O reaction tank for rural decentralized sewage treatment”. It is equipped with four units of anaerobic zone, anoxic zone, aerobic zone and sedimentation zone, and the device is miniaturized and dismantled. Easy to repair. However, the internal assembly of the device is complicated, the power consumption of the device is relatively large, and each unit has a certain influence, which may reduce the processing effect.

In summary, the research and practical application of a treatment device for rural dispersed sewage needs to solve the problem that the internal structure is simple, the treatment effect is good, and the power consumption is small.

Summary of the invention

A brief summary of the invention is set forth below in order to provide a basic understanding of certain aspects of the invention. It should be understood that this summary is not an exhaustive overview of the invention. It is not intended to identify key or critical aspects of the invention, and is not intended to limit the scope of the invention. Its purpose is to present some concepts in a simplified form as a pre-

A main object of the present invention is to provide a sewage treatment device which is simple in structure, flexible in use, low in operation cost, small in floor space, and suitable for treating a waste water source.

According to a first aspect of the invention, a sewage treatment apparatus comprising a power supply unit and a reactor;

The power supply device is configured to supply electrical energy to the reactor;

The reactor includes an inlet pipe, a drain pipe, a casing, and a liner disposed in the casing;

among them,

The housing is provided with a water inlet for inserting an inlet pipe and a first water outlet for inserting the drain pipe, and the height of the water inlet on the casing is higher than the water outlet on the casing height;

The inner tank includes a second top cover and a liner body, and the inner tank is provided with an electrode plate for purifying sewage entering the inner tank and a second water outlet for inserting the drainage pipe;

The electrode plate includes a positive electrode plate and a negative electrode plate placed in parallel; the positive electrode plate is used to decompose organic matter in the sewage entering the inner tank;

The negative electrode plate is used for reducing metal ions in the sewage entering the liner into a simple substance of metal and attaching a simple substance to the metal;

The second top cover is further provided with a discharge floating hole for discharging the floating foam generated by the processing of the positive electrode plate into a gap between the casing and the inner casing;

The sewage entering the casing through the inlet pipe enters the inner tank from the bottom of the inner tank, and after being purified by the electrode plate, is inserted into the inner tank through the first water outlet and the second water outlet. The drain is drained.

By adopting the sewage treatment device of the invention, it is convenient to purify the sewage which is distributed in the rural areas and the like.

DRAWINGS

The above and other objects, features and advantages of the present invention will become more <RTIgt; The components in the figures are merely illustrative of the principles of the invention. In the drawings, the same or similar technical features or components will be denoted by the same or similar reference numerals.

Fig. 1 is a structural view showing an embodiment of a sewage treatment apparatus of the present invention.

detailed description

Embodiments of the present invention will now be described with reference to the accompanying drawings. Elements and features described in one of the figures or one embodiment of the invention may be combined with elements and features illustrated in one or more other figures or embodiments. It should be noted that, for the sake of clarity, representations and descriptions of components and processes known to those of ordinary skill in the art that are not related to the present invention are omitted from the drawings and the description.

Referring to Fig. 1, there is shown a structural view of an embodiment of a sewage treatment apparatus of the present invention.

In the present embodiment, the sewage treatment apparatus includes a power supply unit and a reactor. Among them, the power supply device is used to supply electric energy to the reactor.

The reactor includes an inlet pipe 3, a drain pipe 8, a casing 4, and a liner 6 disposed in the casing.

Wherein, the housing 4 is provided with a water inlet for inserting the inlet pipe 3 and a first water outlet for inserting the drain pipe 8, and the height of the water inlet on the casing 4 is higher than the height of the water outlet on the casing 4. .

The inner tube 6 is provided with an electrode plate 9 for purifying the sewage entering the inner tube 6, and a second water outlet for inserting the drain pipe 8.

When the sewage treatment is performed, the sewage entering the casing through the inlet pipe 3 enters the inner liner 6 from the bottom of the inner liner 6, and after being purified by the electrode plate 9, is inserted into the inner liner 6 through the first water outlet and the second water outlet. The drain pipe 8 is discharged.

As a preferred solution, the sewage treatment device may further comprise a filtration device 5. The filter device 5 is fixed to the bottom edge of the housing 4, and the bottom of the bladder 6 is tightly connected to the top of the filter device 5. The sewage entering the casing 4 is filtered through the filtering device 5 to filter out the larger waste residue, and then enters the inner tank through the bottom of the inner casing 6. In this way, it is ensured that the bulky impurities (such as biological waste) in the sewage remain in the casing 4 without entering the inner tank 6, thereby ensuring the sewage treatment capacity of the electrode plate 9.

In the process of sewage treatment, the inlet pipe 3 discharges sewage into the casing 4, and the sewage reaches the bottom of the casing 4 and is filtered by the filtering device 5, and the water enters the liner 6 due to the pressure. As the sewage continues to increase, the water level in the inner tank 6 rises continuously, and the electrode 9 is immersed in the water to continuously Purification. When the water level reaches the level of the water outlet, the treated water can be discharged.

As a preferred solution, the housing 4 may include a first top cover and a housing body. The bladder 6 can include a second cap and a liner body. The first top cover is detachably connected to the housing body, and the second top cover is detachably connected to the inner body. In this way, the interior of the casing 4 and the liner 6 can be conveniently cleaned, thereby extending the working life of the sewage treatment plant.

The first top cover and the second top cover may respectively be respectively provided with a first through hole and a second through hole for passing the wire 2; the wire 2 is used for transmitting electric energy outputted by the power supply device to the electrode plate 9, thereby making the electrode The plate 9 is capable of purifying the sewage.

In an embodiment, the power supply device may include a solar photovoltaic panel 1. The photovoltaic panel 1 is used to convert solar energy into electrical energy and to supply electrical energy to the electrode plate 9 through the wires 2. In this way, the sewage treatment device in the present embodiment can be powered by solar energy alone without any other external energy supply.

In an embodiment, the electrode plate 9 may include a positive electrode plate and a negative electrode plate placed in parallel. The positive electrode plate can decompose the organic matter in the sewage entering the inner liner 6, and the negative electrode plate can reduce the metal ions in the sewage entering the inner liner 6 into a simple substance of metal and attach the metal simple substance thereto.

As a preferred solution, the first top cover is also provided with a venting opening 11 for discharging air in the housing 4. In this way, when the sewage enters the casing 4, the air in the casing can be discharged to the outside through the vent hole 11, thereby accelerating the speed at which the sewage enters the casing 4.

As a preferred solution, the second top cover is further provided with a discharge foam hole 10 for discharging the floating foam generated by the positive electrode plate treatment into the gap between the casing and the inner casing. In this way, it is possible to further prevent the floating foam from being discharged outside the treatment device through the drain pipe 8.

As a preferred solution, the drain pipe 8 is of an L shape including a horizontal portion and a vertical portion. The vertical portion is located in the inner tank, and the horizontal portion leads to the outside of the casing 4 via the first water outlet and the second water outlet.

The bottom end of the vertical portion of the drain pipe is not higher than one-half of the height of the inner liner 6, so that the water purified by the electrode plate 9 can be discharged as soon as possible, thereby improving the purification efficiency to some extent.

As a preferred embodiment, the sewage treatment apparatus of the present invention may further include a constructed wetland 12 and a sump 13. The horizontal portion of the drain pipe 8 is connected to the water inlet of the constructed wetland 12.

The artificial wetland 12 is for removing organic matter in the water entering through the water inlet of the artificial wetland, and discharging the treated water to the sump 13 through the water outlet of the artificial wetland. Plants and microorganisms in constructed wetlands can further purify the water entering the constructed wetlands and remove them. Organic matter, reducing the nitrogen and phosphorus content.

The sump 13 may also include a water outlet conduit 14. The purified water in the sump 13 can be recovered and reused through the water outlet pipe 14.

The sewage treatment device of the invention has the advantages of simple structure, long working time, low running cost, small occupied area, energy saving, no secondary pollution, and can simultaneously work with multiple sewage treatment device groups, and has a large amount of treatment; for COD, nitrogen and phosphorus The removal effect of nutrients is good, and it can effectively remove the refractory, toxic and harmful organic substances in the sewage; it can reduce the pests and diseases in the sewage and improve the sanitary conditions in the countryside; it can also beautify the environment, and the treated water can be recycled.

In the apparatus and method of the present invention, it will be apparent that various components or steps may be decomposed, combined, and/or decomposed and recombined. These decompositions and/or recombinations should be considered as equivalents to the invention. It should also be noted that the steps of performing the above-described series of processes may naturally be performed in chronological order in the order illustrated, but need not necessarily be performed in chronological order. Certain steps may be performed in parallel or independently of one another. Also, in the above description of specific embodiments of the present invention, features described and/or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, and in other embodiments. The features are combined or substituted for features in other embodiments.

It should be emphasized that the term "comprising" or "comprising" is used to mean the presence of a feature, element, step or component, but does not exclude the presence or addition of one or more other features, elements, steps or components.

Having described the invention and its advantages, it is understood that various changes, substitutions and alterations may be made without departing from the spirit and scope of the invention as defined by the appended claims. Further, the scope of the present application is not limited to the specific embodiments of the processes, apparatuses, means, methods and steps described in the specification. It will be readily apparent to those skilled in the art from this disclosure that the present invention can be used in accordance with the present invention to perform substantially the same functions as the corresponding embodiments described herein or to obtain substantially the same results as the present and future Process, equipment, means, method or step to be developed. Therefore, the appended claims are intended to cover such a process, apparatus, means, methods or steps.

Claims (7)

A sewage treatment device, comprising: a power supply device and a reactor; The power supply device is configured to supply electrical energy to the reactor; The reactor includes an inlet pipe, a drain pipe, a casing, and a liner disposed in the casing; among them, The housing is provided with a water inlet for inserting an inlet pipe and a first water outlet for inserting the drain pipe, and the height of the water inlet on the casing is higher than the water outlet on the casing height; The inner tank includes a second top cover and a liner body, and the inner tank is provided with an electrode plate for purifying sewage entering the inner tank and a second water outlet for inserting the drainage pipe; The electrode plate includes a positive electrode plate and a negative electrode plate placed in parallel; the positive electrode plate is used to decompose organic matter in the sewage entering the inner tank; The negative electrode plate is used for reducing metal ions in the sewage entering the liner into a simple substance of metal and attaching a simple substance to the metal; The second top cover is further provided with a discharge floating hole for discharging the floating foam generated by the processing of the positive electrode plate into a gap between the casing and the inner casing; The sewage entering the casing through the inlet pipe enters the inner tank from the bottom of the inner tank, and after being purified by the electrode plate, is inserted into the inner tank through the first water outlet and the second water outlet. The drain is drained. The sewage treatment apparatus according to claim 1, wherein: Also including a filtering device; The filtering device is fixed on a bottom edge of the casing, and a bottom of the inner tank is tightly connected to a top of the filtering device; The sewage entering the casing passes through the filtering device to filter out the larger waste residue, and then enters the inner tank through the bottom of the inner tank. The sewage treatment apparatus according to claim 1, wherein: The housing includes a first top cover and a housing body, the first top cover is detachably connected to the housing body, and the second top cover is detachably connected to the inner body; The first top cover and the second top cover are respectively provided with a first passage for passing the wire a through hole and a second through hole; The wire is used to transfer electrical energy output by the power supply device to the electrode plate. A sewage treatment apparatus according to claim 3, wherein: The first top cover is also provided with a venting hole for discharging air in the housing. A sewage treatment apparatus according to any one of claims 1 to 4, wherein: The drain pipe is L-shaped, including a horizontal portion and a vertical portion; The vertical portion is located in the inner casing, and the horizontal portion leads to an outer portion of the casing through the first water outlet and the second water outlet; The bottom end of the vertical portion is not higher than one-half of the height of the inner liner. A sewage treatment apparatus according to claim 5, further comprising a constructed wetland and a sump; a horizontal portion of the drain pipe is connected to a water inlet of the artificial wetland; The artificial wetland is used for removing organic matter in the water entering through the water inlet of the artificial wetland, and discharging the treated water to the sump through the water outlet of the artificial wetland. A sewage treatment apparatus according to claim 3 or 4, wherein: The power supply device includes a solar photovoltaic panel; The solar photovoltaic panel is used to convert solar energy into electrical energy and provide electrical energy to the electrode plate through the wire.

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