CN107129116B

CN107129116B - Floating type comprehensive water treatment equipment and water treatment method using same

Info

Publication number: CN107129116B
Application number: CN201710533516.6A
Authority: CN
Inventors: 屈森虎; 许元敏; 赵高纯; 徐琳
Original assignee: Nanjing Tianhe Water Environmental Technology Co ltd
Current assignee: Nanjing Tianhe Water Environmental Technology Co ltd
Priority date: 2017-07-03
Filing date: 2017-07-03
Publication date: 2023-09-19
Anticipated expiration: 2037-07-03
Also published as: CN107129116A

Abstract

According to an embodiment of the present utility model, there is provided a floating type integrated water treatment apparatus including: the device comprises a box body limited or partially limited by a shell (2), wherein a culture unit (3) and a treatment unit (5) are sequentially arranged in the box body, an aeration unit (4) is arranged at the bottom of the box body, the culture unit (3) is provided with a biological filler for culturing aerobic microorganisms, the treatment unit (5) is provided with a biological wall with a rotary structure, the aeration unit (4) continuously supplies air to the biological filler of the culture unit (3), and the microorganisms on the biological wall of the treatment unit (5) are periodically scraped and updated. The water treatment equipment can integrate water treatment processes such as microorganism cultivation and capturing, water body aeration dissolved oxygen, biological flocculation, biological purification, biological filtration, physical filtration and the like, has simple and compact structure, convenient manufacture, convenient installation and maintenance, low energy consumption, high energy efficiency ratio, wide application range, good water purification effect and landscape effect.

Description

Floating type comprehensive water treatment equipment and water treatment method using same

Technical Field

The utility model relates to water treatment equipment, in particular to floating type integrated water treatment equipment and a water treatment method using the same.

Background

The water treatment object mainly comprises natural water body and artificial water body. Such as river and lake waters, landscape waters, aquaculture waters, fountains, swimming pools, water parks, etc. Most of the water bodies have the characteristics of low pollutant concentration, diversified pollution source types and extremely large water quantity, and most of the water bodies have high requirements on water quality and sanitary conditions, and meanwhile, artificial or non-artificial pollution is continuously generated in the use process. Because the water stored in the water bodies is replaced regularly, a great amount of water resources are wasted, high cost is also generated, and the water circulation treatment equipment is adopted to purify the water bodies at present.

The root cause of deterioration of the water quality in rivers and lakes is that pollutant discharge causes eutrophication of water, so that a great amount of oxygen-consuming plants and organisms such as algae are excessively bred, and the water is anoxic, thereby destroying the original ecosystem of the water body.

Therefore, when the water quality of the river or the lake is treated, the pollution sources around the river or the lake are firstly subjected to pollution interception and pollution control. However, due to the complex condition of the two sides of the river channel in some old urban areas, scattered hidden discharge ports are inevitably left out, and particularly hidden discharge ports on the two sides of a box culvert are likely to be left out, and pollution to river water or lakes can be caused if effective sewage interception is not carried out. Meanwhile, a great deal of continuous pollutants brought by the fact that some sewage pipe networks are connected into the rainwater pipe networks in a staggered mode are discharged into river channels or lakes in a staggered mode, and water pollution is caused.

Therefore, the principle of water circulation treatment is a fundamental solution by increasing the oxygen content of water in a water body. Further, the oxygen content of the water body water can be increased by adopting a dissolved oxygen aeration method.

There have been applications for combining water circulation treatment equipment with dissolved oxygen aeration devices. For example, in chinese patent application publication CN1297490C, a device and method for river and lake water treatment are disclosed. The water treatment device comprises a new device for receiving vomiting and new water, wherein the new device is in a sleeve shape, the bottom of the inner cylinder is connected with a water inlet pipe, V-shaped overflow grooves are radially and uniformly distributed between the inner cylinder and the outer cylinder, and water curtains are formed on the bottom edge and the two upper edges of the V-shaped overflow grooves. Harmful gas in the water volatilizes through the contact of the water curtain and the atmosphere, and oxygen in the air is dissolved into the water, so that the oxidation, the activation and the freshness of the water are realized.

For another example, chinese patent No. ZL201320139623.8 discloses a "dissolved oxygen aeration device and a water treatment apparatus using the same", which uses potential energy of a drop between a water surface of a water body to be treated outside the device and a dropped water surface inside the device to power the dissolved oxygen aeration, so that the movement of water inside the device is more stable; the control water surface inside the device is basically stable through the control of the inflow, so that the water surface height difference from the falling water surface to the control water surface is ensured, and the space of falling type dissolved oxygen aeration is ensured.

For another example, chinese patent application 201510481978.9 discloses a floating type water treatment apparatus, a water treatment method, and a backwashing method of the apparatus.

In the prior art schemes such as disclosed in the patent application, the dissolved oxygen aeration equipment in the prior environmental protection water treatment field can only oxygenate water body, has single function and limited treatment effect on water body in severe pollution areas, thereby causing pollution diffusion and aggravating the difficulty of overall water body treatment; on the other hand, the purpose of treating urban river and lake water bodies is to enable the river and lake to have a landscape function, and the general dissolved oxygen aeration equipment cannot meet the landscape function in appearance.

Disclosure of Invention

To solve at least one of the above technical problems, according to an aspect of the present utility model, there is provided a method of water treatment using a floating type integrated water treatment apparatus, comprising: the sewage to be treated enters the box body of the floating type comprehensive water treatment equipment by utilizing negative pressure, the microorganisms attached to the surface of the biological filler of the culture unit arranged in the box body adsorb and convert organic matters in the sewage, the microorganisms grow and reproduce by taking the organic matters as nutrients, the water passing through the culture unit flows in a rotary waterway formed by a biological wall with a labyrinth structure of the treatment unit, and in the flowing process, the aerobic microorganisms, the facultative microorganisms and the anaerobic microorganisms of the biological wall adsorb, nitrify and denitrify the organic matters, and the water treated by the treatment unit then flows to the rear part of the equipment box body to be discharged.

According to the water treatment method of the embodiment of the utility model, optionally, sewage to be treated enters the inside of the box body from multiple directions through the water inlet grid.

According to the water treatment method of the embodiment of the present utility model, water discharged from the rear of the apparatus housing is optionally filtered by the filtering unit.

According to the water treatment method of the embodiment of the present utility model, optionally, a part of the water treated by the treatment unit is returned to the culture unit or the water inlet portion of the treatment unit.

According to the water treatment method of the embodiment of the utility model, optionally, aerobic microorganisms attached to the surface of the biological filler of the culture unit are continuously supplied with oxygen through the micro-pore aerator, and the microorganisms on the biological wall of the treatment unit are periodically updated and iterated through the medium-bubble aerator.

According to another aspect of the present utility model, there is provided a floating type integrated water treatment apparatus comprising: the device comprises a box body limited by a shell or partially limited by the shell, wherein a culture unit and a treatment unit are sequentially arranged in the box body, an aeration unit is arranged at the bottom of the box body, the culture unit is provided with biological fillers for culturing aerobic microorganisms, the treatment unit is provided with a biological wall with a rotary structure, the aeration unit continuously supplies air to the biological fillers of the culture unit, and the microorganisms on the biological wall of the treatment unit are scraped and updated regularly.

According to the water treatment device of the embodiment of the utility model, optionally, a water inlet grille is further arranged at the front end of the box body, and water to be purified enters the culture unit through the water inlet grille.

According to the water treatment apparatus of the embodiment of the present utility model, the water inlet grille may have a planar structure or a three-dimensional structure.

According to the water treatment device of the embodiment of the utility model, the water inlet grille with the three-dimensional structure is optionally one of conical shape, hemispherical shape, cuboid shape, square shape, semi-cylindrical shape, round table shape and pyramid shape, or a combination of a plurality of shapes.

According to the water treatment apparatus of the embodiment of the present utility model, optionally, the biological packing of the culture unit is a densely arranged solid packing.

According to the water treatment apparatus of the embodiment of the present utility model, alternatively, the solid packing is fixed to the thin rod or the chain, and one end of the thin rod or the chain is fixed to the inside of the upper portion of the tank, or both ends of each thin rod or chain are fixed to the upper portion and the lower portion of the tank, respectively.

According to the water treatment apparatus of the embodiment of the present utility model, optionally, the bio-filler of the culture unit is a combined bio-filler made of bio-fillers of various materials.

According to the water treatment apparatus of the embodiment of the present utility model, optionally, the biological wall of the treatment unit having a revolving structure is: one side of each biological wall is fixedly connected with one inner side end surface of the box body, and the distance between the other side of the biological wall and the other inner side end surface of the box body is equal to the distance between two adjacent biological walls; or two biological wall structures are arranged at intervals, wherein two sides of the biological wall of one structure are fixed with two inner side surfaces of the box body to form a middle opening, and the biological wall of the other structure is arranged at the middle part of the box body, so that water entering from the middle opening flows to the two inner side surfaces of the box body respectively and then flows to the next middle opening; or a biological wall structure for rotating water in the overall flow direction of water in the interior of the tank.

According to the water treatment equipment of the embodiment of the utility model, optionally, the biological wall piece forming the biological wall with the rotary structure is composed of the biological filler and the filler plate frame, the biological filler is fixed on the filler plate frame through the pressing plate, and the filler plate frame is welded in the box body frame or matched with the box body frame in a drawing mode.

According to the water treatment apparatus of the embodiment of the present utility model, optionally, the bio-filler is a polyurethane bio-filler.

According to the water treatment equipment provided by the embodiment of the utility model, optionally, the aeration unit comprises one or more groups of micro-pore aerators and a middle bubble aerator, the micro-pore aerators continuously supply air to the biological filler of the culture unit, and the middle bubble aerator periodically scrapes and updates microorganisms on the biological wall of the treatment unit.

According to the water treatment equipment provided by the embodiment of the utility model, optionally, the water treatment equipment further comprises a drainage pump, the drainage pump is arranged at the corner of the box body at the downstream of the water flow, the negative pressure energy formed by the operation of the drainage pump enables water outside the box body to automatically flow into the box body and be treated and purified by each unit, and the treated water is discharged outside the box body or enters the subsequent water treatment unit under the action of the drainage pump.

According to the water treatment apparatus of the embodiment of the present utility model, optionally, the water treatment apparatus further comprises a reflux pump for guiding a part of microorganisms periodically scraped off on the biological wall at the bottom of the tank back to the culture unit or the treatment unit through a pipeline.

According to the water treatment equipment provided by the embodiment of the utility model, optionally, the drainage pump or the water inlet of the drainage pump is arranged on the bracket at the middle height of the box body; the reflux pump or the water inlet thereof is arranged on the inner side surface of the bottom of the box body.

According to the water treatment equipment provided by the embodiment of the utility model, the filtering unit is optionally arranged at the tail part of the box body of the water treatment equipment and is used for filtering the water treated by the treatment unit.

According to the water treatment apparatus of an embodiment of the present utility model, optionally, the water treatment apparatus further comprises a floating unit arranged at the bottom and/or at the top of the apparatus housing for suspending at least a main body portion of the apparatus housing in the body of water to be treated.

According to the water treatment apparatus of the embodiment of the present utility model, the floating unit is optionally provided outside the bottom casing of the tank, or the floating unit itself forms the bottom of the tank.

According to an embodiment of the water treatment apparatus of the present utility model, the floating unit optionally comprises a polyurethane rigid foam material.

According to the water treatment equipment provided by the embodiment of the utility model, optionally, the water treatment equipment further comprises a floating depth adjusting unit, wherein the adjusting unit is composed of a floating sliding cylinder and fixed rod feet, the floating sliding cylinder is positioned at four corners of the shell and welded into a whole with the shell, and the end face of the floating sliding cylinder is flush with the end face of the box body; the fixed rod foot can slide in the floating slide cylinder.

According to a further aspect of the present utility model there is provided a water treatment system comprising a floating integrated water treatment apparatus as hereinbefore described.

According to the floating type comprehensive water treatment equipment provided by the embodiment of the utility model, the water treatment processes of microorganism cultivation and capturing, water body aeration dissolved oxygen, biological flocculation, biological purification, biological filtration, physical filtration and the like can be integrated, the whole equipment adopts the appearance of a painting or a pavilion, and the floating type comprehensive water treatment equipment is simple and compact in structure, convenient to manufacture, convenient to install and maintain, low in energy consumption, high in energy efficiency ratio, wide in application range, good in water purification effect, durable and has a landscape effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following brief description of the drawings of the embodiments will make it apparent that the drawings in the following description relate only to some embodiments of the present utility model and are not limiting of the present utility model.

FIG. 1 is a front cross-sectional view of a floating integrated water treatment apparatus according to one embodiment of the present utility model;

FIG. 2 is a top cross-sectional view of the floating integrated water treatment apparatus of FIG. 1;

FIG. 3 schematically illustrates the internal water flow profile of the floating integrated water treatment apparatus shown in FIG. 1;

FIGS. 4A-4D schematically illustrate a water inlet grid of a floating integrated water treatment apparatus according to an embodiment of the present utility model;

fig. 5A to 5C schematically show a labyrinth structure of a floating type integrated water treatment apparatus according to other embodiments of the present utility model.

Text of the drawings

1 Water inlet grille

2 outer casing

3 culture unit

4 aeration unit

41 aerator

42 aerator

5 processing unit

6 Pump Unit

61 drainage pump

62 reflux pump

7-floating-diving height adjusting unit

8 filtration unit

9 Floating unit

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

The floating type comprehensive water treatment equipment provided by the embodiment of the utility model can integrate water treatment processes such as microorganism culture, water aeration and oxygen dissolution, biological flocculation, biological purification, biological filtration, physical filtration and the like into a whole, is simple and compact in structure, convenient to manufacture, convenient to install and maintain, low in energy consumption, high in energy efficiency ratio, wide in application range, good in water purification effect, durable, and the whole equipment adopts the appearance of a painting or a pavilion and has a landscape effect.

Compared with the existing open dissolved oxygen aeration device for adding oxygen into water to be purified or the existing open microorganism culture device, the floating type integrated water treatment equipment body is a suspension type box body, microorganisms are cultured in the space inside the box body, the microorganisms are used for treating sewage, the microorganisms in unit volume can be ensured to reproduce, grow and be high in concentration, the contact degree of the microorganisms and water is increased by arranging a water flow passage, the water treatment efficiency of the unit volume is improved, the treatment of the sewage with high pollution degree or the sewage close to a pollution source is more effective, and the pollution of the pollution source to the water can be limited from the source.

Fig. 1 is a front sectional view of a floating type integrated water treatment apparatus according to an embodiment of the present utility model. As shown in fig. 1, the floating type integrated water treatment apparatus has a housing 2 outside, a main body is in a box structure, a water inlet grid 1 is provided at a front end of the box, a culture unit 3, a treatment unit 5 and a filtering unit 8 are sequentially provided from front to back, an aeration unit 4 and a floating unit 9 are provided at a bottom of the box, and furthermore, a pump unit 6 is provided in the box and a submergence depth adjusting unit 7 is provided at an upper portion of the box.

The water inlet grille 1 is arranged at the front end of the box body structure of the water treatment equipment, and water to be purified enters the interior of the box body structure of the equipment through the water inlet grille 1. As further shown in fig. 4A to 4D, the water inlet grill 1 may have various structural shapes, may have a three-dimensional structure as shown in fig. 4A, 4C and 4D, or may have a planar structure as shown in fig. 4B. For example, fig. 4A is a side view of a conical water inlet grille 1, and the grille with the three-dimensional structure can be used for water inlet from top, bottom, left and right, so that the water inlet area is greatly increased; if the water inlet grooves between the upper grid strips are blocked, the water inlet grooves at the lower part and in other directions can still be used for water inlet, so that the complex situation of water pollutants can be dealt with; in addition, the structural form of the grating strips is easy to intercept pollutants and convenient to clean. Similarly, the water inlet grille 1 may have a hemispherical shape as shown in fig. 4C, a rectangular parallelepiped shape as shown in fig. 4D, or a square, semi-cylindrical, truncated cone, pyramid shape, or a plurality of three-dimensional structures. The water inlet grille 1 may be a combination of these three-dimensional structures.

If a three-dimensional water inlet grille is adopted, water inlet tanks symmetrically arranged along the central axis can be adopted, and for a conical water inlet grille, the lengths of the water inlet tanks are sequentially increased from front to back, as shown in fig. 4A. In addition, the sum of the projected areas of the respective water inlet grooves of the water inlet grid 1 constitutes the total water inlet area of the apparatus, which is optionally larger than the water outlet area of the apparatus (i.e., the cross-sectional area of the water outlet pipe of the filter unit 8), so that the water purifying capacity can be ensured to be substantially unaffected when the total water inlet area is reduced due to clogging of part of the water inlet grooves of the water inlet grid 1 with impurities in the water. Preferably, the total water inlet area of the device is about 4 times the water outlet area of the device.

The culture unit 3 is arranged at the front section of the device box structure, and water to be treated firstly enters the culture unit 3 from the water inlet grille 1 behind the water inlet grille 1. The culture unit 3 is used for culturing aerobic microorganisms which propagate and grow with organic matters (mainly pollutants discharged from a pollution source into a water body) as nutrients.

Specifically, biological filler is arranged in the culture unit 3, microorganisms are firstly attached to the surface of the biological filler layer and form a microbial film, and then aerobic microbial flora is continuously grown on the surface layer of the microbial film; in the process of water flowing through the microbial membrane, degrading sewage through the actions of biological oxidation, conversion, digestion and the like generated in the membrane by the adsorption of the microbial membrane on organic matters and the diffusion of oxygen into the biological membrane; and meanwhile, the microorganism can be continuously cultured, propagated and grown, and part of microorganisms are separated from the filler and enter water, and flow to a subsequent water treatment unit along with the water to participate in subsequent water treatment. The bio-filler may take various forms, for example, in order to increase the surface area of the microbial film, a solid filler may be used, and the solid filler may be fixed to a thin rod or a chain, one end of which is fixed to the inner side of the upper portion of the case (for example, a steel bar on the end surface of the upper inner side of the case, as shown in fig. 1), or both ends of each thin rod or chain may be fixed to the upper portion and the lower portion of the case, respectively.

By adopting the three-dimensional filler to increase the surface area of the microbial membrane, the internal space of the culture unit 3 can be fully utilized, the microorganism propagation and growth capacity can be increased in the limited internal space, meanwhile, the microorganisms which are relatively densely distributed in water (as shown in fig. 1 and 2) can also rapidly capture and convert granular organic matters and colloid organic matters in the water, and biological flocculation can be carried out, so that the treatment capacity of the organic matters in sewage is increased, the treatment speed is improved, and a good solution is provided for the problem of how to rapidly treat the highly polluted water.

Optionally, a combination biological filler made of biological fillers of various materials can be adopted to improve the effects of microorganism propagation, growth and shedding.

The processing unit 5 is disposed at a middle section of the case, after the culturing unit 3. For example, a labyrinth type biological wall member is provided in the treatment unit 5 to increase the contact time of water with microorganisms attached to the biological wall and to improve the water purification treatment effect. For example, as shown in the structure of the treatment unit 5 of fig. 2, the labyrinth type bio-wall member may force the water flow to travel in an "S" type route. In addition, in consideration of the matching of the flow rate and the flow quantity, in the structure of the processing unit 5 shown in fig. 2, one side edge of each biological wall is fixedly connected to one inner side end surface of the case, and the distance between the other side edge and the opposite inner side end surface of the case can be equal to the distance between two adjacent biological walls. The biological wall component can be composed of biological filler and a filler plate frame, wherein the filler plate frame is welded in the box frame, and the biological filler is fixed on the plate frame by the pressing plate, so that the fixation is more firm; the packing plate frame can also be pulled out, so that the replacement and maintenance are more convenient. The biological filler can be made of polyurethane material, so that the biological filler is more firm and durable.

Although the microorganisms in the culture unit 3 also have a certain effect on the water purification, the evolution treatment of the water by the microorganisms is mainly carried out in the treatment unit 5. On one hand, the path of water flow is changed and lengthened through arranging the biological wall with a rotary structure, the contact time of water and the biological wall is increased, so that aerobic microorganisms which are mainly cultivated in the cultivation unit 3 and fall off from biological fillers of the cultivation unit 3 to suspend in the water can be deposited on the surface of the biological wall, a large amount of aerobic microorganisms grow on the surface of the biological wall, the aerobic microorganisms absorb organic matters in the water body to achieve the purpose of biological filtration, nitrogen-containing organic matters in the water body are converted into nitrate, on the other hand, when the surface of the biological wall is full of aerobic microorganisms (i.e. zooglows), oxygen which can be contacted with the surface of the biological wall is consumed, and only facultative or anaerobic microorganisms can grow inside the biological wall due to oxygen deficiency, and the facultative or anaerobic microorganisms can be used for reducing nitrate matters obtained by nitrifying the aerobic microorganisms entering the interior of the biological wall to be released. Thus, the nitrification and denitrification processes exist simultaneously in the whole treatment process, and organic dirt is effectively removed.

The biological filler of the treatment unit 5 can be polyurethane biological filler, for example, high polymer synthetic hydrophilic polyurethane biological denitrification filler, which is formed by double explosion of oxygen and hydrogen, has a pore diameter of 2-7 mm, and is mutually communicated to achieve the omnibearing cultivation carrier of the whole filler. The biological filler not only can realize conventional physical adsorption, but also can lead the surface of the carrier to have certain cationic active groups, hydroxyl groups and other hydrophilic groups, and can be fixedly combined with microorganisms with negative charges in sewage to generate bonds and prices, so that the microorganisms and biological enzymes are firmly fixed on the carrier, the surviving microorganisms are not easy to run off under the shearing action of water and gas, the loading capacity of the microorganisms is large, the volume load is high, and the ammonia nitrogen and total nitrogen in the sewage can reach the purpose of reducing simultaneously. The biological filler such as polyurethane material is adopted, so that the large load of attached microorganisms can be realized, and the fixation and the maintenance of the microorganisms are facilitated, which is significant for the sewage treatment such as denitrification and dephosphorization of high-concentration organic wastewater, various industrial wastewater, oil refining wastewater, daily chemical wastewater, medical wastewater and town domestic sewage.

The biological wall of the treatment unit 5 may be constructed in a labyrinth structure as shown in fig. 2, or may be constructed in other structures that can extend the contact area and contact time of water with the biological wall. For example, in fig. 5A, two kinds of arranged biological wall structures are provided at intervals, both sides of the biological wall of one structure are fixed to both inner sides of the case, and a middle opening is provided, and the biological wall of the other structure is provided at a middle portion of the case so that water entering from the middle opening flows toward both inner sides of the case, respectively, and then flows to the next middle opening. In the structure shown in fig. 5A, the distances from the two sides of the biological wall disposed in the middle portion of the case to the corresponding inner sides of the case are the distances between the adjacent biological walls.

Unlike the case shown in fig. 2 and 5A in which water is rotated in a vertical flow direction (corresponding to the direction perpendicular to the paper surface of fig. 1) by providing a bio-wall, the labyrinth structure shown in fig. 5B may rotate water in the entire flow direction of water (corresponding to the left-to-right direction of fig. 1) inside the case, which is similar to the labyrinth structure shown in fig. 2 rotated by 90 degrees.

The labyrinth structure shown in fig. 5C adopts a shape similar to a W shape, which can also play a role in increasing the contact area and contact time between water flow and the biological wall, and can also participate in the wave-shaped structure.

The revolving structure shown in fig. 2 and fig. 5A and 5B is more efficient in terms of utilization of the space inside the case.

Alternatively, the biological wall structure of the processing unit 5 may be a combination of two or more of the above biological wall structures.

The aeration unit 4 works in cooperation with the culture unit 3 and the treatment unit 5. As shown in fig. 1, the aeration unit 4 is disposed at the bottom of the tank, and includes a plurality of sets of aerators, each set of aerators having one or more aeration openings, and spraying air, compressed air, oxygen-enriched air or oxygen upward.

More specifically, the aeration unit 4 includes an aerator 41 and an aerator 42, which work in cooperation with the culture unit 3 and the treatment unit 5, respectively, as shown in fig. 1, the air injection direction of the aerator 41 and the aerator 42 is the same as or parallel to the setting or hanging direction of the bio-filler of the culture unit 3 and the setting or vertical setting direction of the bio-wall of the treatment unit 5.

Wherein, the aerator 41 is a micro-pore aerator which is in a continuous working state and supplies air to the microbial film attached on the biological filler of the culture unit 3 so as to provide enough oxygen and good growth environment for the growth of microorganisms; the aerator 42 is a medium-bubble aeration device, and can generate bubbles with larger volume (i.e. medium size), and the bubbles can form scraping action on the surface of the biological wall of the treatment unit 5, so that aerobic microorganisms on the surface of the biological wall fall off, and as the microorganisms can age or die after growing for a certain time, the aerator 42 is periodically started to scrape and peel the microorganisms on the surface of the biological wall by using the larger bubbles, and periodic updating and iteration can be performed on the microorganisms on the biological wall. It can be seen that the aerator 41 and the aerator 42 are different in structure, function, working principle and working time arrangement, and they respectively act on different links of the water treatment in the tank, namely, the microorganism culture and the biological wall water purification treatment. As shown in fig. 1, according to the floating type integrated water treatment apparatus of the embodiment of the present utility model, the aerator 41 and the aerator 42 are connected to the air pump outside the tank through the pipeline (for example, the external components such as the air pump may be disposed on the upper end surface of the tank, may be located above the water surface or at least the air inlet is located above the water surface, may be disposed inside the booth), the aerator 41 and the aerator 42 may be independent pipelines, may share the pipeline, and may be separately operated through control valves. In addition, each of the aerator 41 and the aerator 42 may include one or more groups of aeration devices, each group of which may include one or more aeration heads, for example, in fig. 1, the aerator 41 includes one group of aeration devices having four aeration heads, and the aerator 42 includes two groups of aeration devices, each group of aeration devices including three aeration heads.

A pump unit 6 is provided at the rear of the apparatus housing, behind the treatment unit 5, for powering the flow of water within the housing. Referring to fig. 2, the pump unit 6 includes a drainage pump 61 and a return pump 62, wherein the drainage pump 61 is disposed at a corner of the tank downstream of the water flow, and negative pressure energy formed by the operation of the drainage pump 61 enables sewage outside the tank to flow from the water inlet grille 1 into the tank to be treated and purified by each unit, and the treated water is discharged outside the tank or enters a subsequent water treatment unit under the action of the drainage pump 61; the return pump 62 may be provided near the drainage pump 61, for example, as shown in fig. 2, at the other corner of the tank downstream of the water flow inside the tank, and introduce a part of the water purified inside the tank back to the culture unit 3 through a pipe, for example, near the water inlet of the tank, thereby achieving the repetitive circulation process of the water inside the tank. Alternatively, the return pump 62 may also lead this portion of the water back to the water inlet portion of the treatment unit 5. Since the apparatus main body is suspended in water and water treatment is performed inside the apparatus case, the drain pump 61 and the return pump 62 of the pump unit 6 may be submersible electric pumps.

Optionally, a filtering unit 8 is arranged at the tail part of the equipment box body, and water discharged by the drainage pump 61 is filtered by the filtering unit 8 and then discharged to an external water body. For example, as shown in fig. 2, the filtering unit 8 is formed by combining two filtering bins in parallel, the water outlet pipe of the drainage pump 61 extends into the filtering unit 8, the water treated by the previous unit is introduced into the filtering bin and flows downwards from above the filtering bin, impurities contained in the water are trapped by the filtering material through the middle filtering material, meanwhile, organic matters, inorganic matters and specific matters in a particle state are removed, and the generated sludge is reserved in the filtering material, so that the rapid and efficient treatment and purification effects are achieved, and the quality of the water is excellent. In the device provided with the filter unit 8, the device water outlet is the water outlet of the filter unit 8, and the device water outlet area is the water outlet area of the water outlet of the filter unit 8. According to different processing capacity requirements, the size, the combination number and the like of the filter bin can be adjusted and changed.

The floating unit 9 may be arranged at the bottom and/or at the top of the equipment housing for suspending at least the main part of the equipment housing in the body of water to be treated, so that the water to be treated may flow from the water inlet grid into the interior of the housing under the effect of the negative pressure inside the housing. If the floating units 9 are provided at both the bottom and the top of the tank, the buoyancy of the floating units 9 laid flat at the bottom of the tank may be slightly less than the overall weight of the apparatus, the floating units provided at the top of the apparatus provide a buoyancy corresponding to the remainder of the overall weight of the apparatus, so that at least the main body portion or the tank portion of the apparatus is suspended in the water, and the buoyancy provided by the floating units provided at the top of the apparatus may be used to adjust the balance of the apparatus. The floating unit 9 may be provided outside the bottom casing of the tank, or the floating unit 9 itself forms the bottom of the tank, and the aeration means of the aeration unit 4 may be embedded in the floating unit 9, as shown in fig. 1.

Alternatively, the floating unit 9 is made of polyurethane rigid foam material, so that the plane formed by polyurethane rigid foam at the bottom of the tank can also prevent sludge deposition and microbial deposition falling from the filler. As described above, microorganisms falling to the bottom of the tank can be pumped back to the culture unit 3 or the processing unit 5 by the reflux pump 62.

Optionally, a submergence depth adjusting unit 7 may also be provided for adjusting the submergence depth of the plant housing so that the overall size of the plant is adapted to different depths of the body of water. The adjusting unit 7 can be composed of a floating sliding cylinder and fixed rod feet, wherein the floating sliding cylinder is positioned in four corners of the shell 2 and welded into a whole with the shell 2, and the end face of the floating sliding cylinder is flush with the end face of the box body; the fixed rod foot can freely shuttle inside the floating slide cylinder. The fixed rod foot is fixed in position, and the floating slide cylinder is pulled up and down to be fixed to a proper position, so that the box body is fixed at a corresponding position, and the adjustment of the submerging depth in different water depth environments is realized.

Alternatively, the drainage pump 61 is arranged on a bracket at the middle height of the box body, so that the pollutant suspended at the middle height part in the box body can be pumped out of the box body and enter the filtering unit 8 for filtering treatment; and the reflux pump 62 is installed on the plane of the polyurethane rigid foam (floating unit 9) at the bottom of the tank, and can draw microorganisms and the like falling on the bottom back to the water inlet at the front end of the tank. The circulation is repeated, so that rich microorganism groups with high concentration in the box body are ensured, and the water treatment effect is improved. According to other embodiments of the utility model, the drainage pump 61 and the return pump 62 and their water inlet and outlet ports may be provided at other locations of the apparatus.

Fig. 3 schematically illustrates the internal water flow direction of the floating integrated water treatment apparatus shown in fig. 1. As shown in fig. 1, 2 and 3, under the action of the drainage pump 61, sewage to be treated enters the inside of the equipment box body from multiple directions through the water inlet grating 1, firstly enters the culture unit 3, organic matters in the sewage are adsorbed, captured and converted by microorganisms attached to the surface of the biological filler of the culture unit 3, the organic matters are used as nutrients for growth and reproduction, water then flows through a rotary waterway formed by the biological wall with the labyrinth structure of the treatment unit 5, in the flowing process, organic matters are adsorbed, nitrified and denitrified by aerobic microorganisms, facultative microorganisms and anaerobic microorganisms passing through the biological wall of the treatment unit 5, and water treated by the treatment unit 5 flows to the rear part of the equipment box body and is discharged out of the equipment through the drainage pump 61.

Optionally, the water discharged from the drainage pump 61 is further filtered by providing the filtering unit 8 to trap and remove foreign materials, organic matters in a particulate state, inorganic matters, and specific matters contained in the water.

Optionally, a reflux pump 62 may be provided to introduce a part of the water treated by the treatment unit 5 back to the culture unit 3 or the water inlet portion of the treatment unit 5 to achieve the circulation treatment.

The tank of the water treatment apparatus according to the embodiment of the present utility model is suspended or floated in a water body, and water purification treatment is performed inside the tank, so that the water treatment amount is also related to the volume inside the tank. Thus, depending on the amount of treatment required at the source of the pollution, this can be achieved by varying the size of the tank. The shape of the equipment box body can also adopt various shapes such as cuboid, cylinder, prism and the like.

Although the water purification treatment is performed inside the tank, the tank is not required to be completely sealed, so long as the microorganism concentration and the treatment capacity inside the tank are ensured.

The floating type integrated water treatment apparatus according to the embodiment of the present utility model may power the pump unit and the control unit (not shown) with an external cable, a battery, a generator, a solar power generation device, etc.

The shell, the support frame, the nozzle, the labyrinth structure, the pump unit and the like of the floating type integrated water treatment equipment can be made of common carbon steel materials, stainless steel materials, plastics and the like. The portion of the apparatus immersed in water is preferably subjected to rust-preventive treatment.

The floating type integrated water treatment equipment provided by the embodiment of the utility model can be independently used for purifying the water body, can also be used as a part of a water body purifying treatment system, and can be used for purifying and maintaining the water body after purifying the water body by other equipment through possible technical means such as dissolved oxygen aeration, filtration, dosing and the like.

The floating type integrated water treatment equipment can integrate water treatment processes such as aeration, filtration, microbial degradation and the like, and has a simple and compact structure.

The water part of the equipment can adopt different forms such as pavilion, painting and the like to achieve the landscape effect.

According to the floating type comprehensive water treatment equipment provided by the embodiment of the utility model, one or more of the following technical effects can be realized: the water treatment equipment can be directly placed in a polluted river or lake in a region with serious pollution (also called in-situ treatment), so that a large amount of investment can be saved, the construction period is short, and the equipment is easier to realize pollution treatment without a machine room; the three-dimensional elastic filler and the combined filler are arranged at the front part of the device, and the micro-bubble aeration device is arranged at the bottom, so that microorganisms can be quickly cultured, granular organic matters and colloid organic matters in a water body can be effectively captured, and biological flocculation is performed; the middle and rear parts of the biological wall are provided with labyrinth type biological walls, the contact time between the water body and the biological wall is increased through the labyrinth structure, so that microorganisms suspended in the water can be planted on the surface of the biological wall, a large amount of aerobic microorganisms grow on the surface of the biological wall, the aerobic microorganisms adsorb organic matters in the water body to achieve the purpose of biological filtration, nitrogen-containing organic matters in the water body are converted into nitrate, the nitrate is transferred into the biological wall to be reduced and converted into gaseous nitrogen by facultative or anaerobic microorganisms to be released, and the nitrification and denitrification processes exist in the whole treatment process at the same time, so that the organic matters are effectively removed; a middle bubble aeration device is arranged at the bottom, and microorganisms on the biological wall are periodically updated and iterated in an aeration mode; the rear part of the filter unit can be externally hung, and the filter unit is formed by combining filter bins in parallel, the water after the previous purification treatment enters the filter bin, and pollutants contained in the water body are intercepted by filter materials, so that only the purified good water quality passes through; the device is foamed by polyurethane in the effective space on the upper part and the bottom of the device structurally, the device can be suspended on the water surface by utilizing the buoyancy of the foaming space, and the relative height of the device and the water surface can be changed by the relative position of the floating slide cylinder and the fixed rod, so that the device is suitable for various water depth environments.

In addition, the water treatment equipment provided by the embodiment of the utility model can be matched with the water treatment capacity requirement by selecting different size types of boxes according to the pollution capacity requirement of a pollution source. The utility model has wider application range and good effect in advanced treatment of water, micro-polluted water treatment, treatment of refractory organic matters, nitration treatment of low-temperature sewage and low-temperature micro-polluted water treatment. The utility model effectively improves the efficiency and the purification effect of water treatment. Purifying water, and treating from source to prevent pollution.

The foregoing is merely exemplary embodiments of the present utility model and is not intended to limit the scope of the utility model, which is defined by the appended claims.

Claims

1. A method for water treatment by using floating type integrated water treatment equipment,

characterized by comprising the following steps:

the sewage to be treated enters the box body of the floating type comprehensive water treatment equipment by utilizing negative pressure,

the microorganism attached to the surface of the biological filler of the culture unit arranged in the box body adsorbs and converts the organic matters in the sewage, the microorganism grows and breeds by taking the organic matters as nutrients,

after passing through the culture unit, the water flows in a rotary waterway formed by the biological wall with the labyrinth structure of the treatment unit, and organic adsorption, nitrification and denitrification treatment are carried out by aerobic microorganisms, facultative microorganisms and anaerobic microorganisms of the biological wall in the flowing process,

the water treated by the treatment unit then flows to the rear of the apparatus housing to be discharged,

wherein, the aerobic microorganisms attached to the surface of the biological filler of the culture unit are continuously supplied with oxygen through the micro-pore aerator, the microorganisms on the biological wall of the treatment unit are periodically scraped and updated through the medium-bubble aerator,

the biological wall of the processing unit is as follows:

one side edge of each biological wall is fixedly connected with one inner side end surface of the box body, and the distance between the other side edge and the other inner side end surface of the box body is equal to the distance between two adjacent biological walls;

or alternatively, the method can be used for preparing the composite,

two biological wall structures are arranged at intervals, wherein two sides of the biological wall of one structure are fixed with two inner side surfaces of the box body to form a middle opening, the biological wall of the other structure is arranged at the middle part of the box body, so that water entering from the middle opening flows to the two inner side surfaces of the box body respectively and then flows to the next middle opening,

wherein the air injection direction of the middle bubble aerator is the same as or parallel to the vertical erection direction of the biological wall of the treatment unit.

2. The method according to claim 1, wherein the sewage to be treated enters the interior of the tank from a plurality of directions through a water inlet grid.

3. The method according to claim 1, wherein water discharged from the rear of the apparatus housing is filtered by a filtering unit.

4. The method according to claim 1, wherein a part of the water treated by the treatment unit is led back to the cultivation unit or to the water inlet of the treatment unit.

5. A floating type integrated water treatment device,

characterized in that the water treatment is carried out by the method according to any one of claims 1 to 4,

the apparatus comprises:

a box body limited or partially limited by the shell (2), a culture unit (3) and a processing unit (5) are sequentially arranged in the box body, an aeration unit (4) is arranged at the bottom of the box body,

the culture unit (3) is provided with a biological filler for culturing aerobic microorganisms,

the processing unit (5) is provided with a biological wall with a rotary structure,

the aeration unit (4) continuously supplies air to the biological filler of the culture unit (3) and periodically scrapes and updates microorganisms on the biological wall of the treatment unit (5),

the aeration unit (4) comprises one or more groups of micro-pore aerators and a middle-bubble aerator, the micro-pore aerators continuously supply air to the biological filler of the culture unit (3), and the middle-bubble aerators regularly scrape and update microorganisms on the biological wall of the treatment unit (5).

6. The water treatment apparatus according to claim 5, further comprising a water inlet grille (1) at a front end of the tank, wherein water to be purified is introduced into the culture unit (3) through the water inlet grille (1).

7. A water treatment device according to claim 6, characterized in that the water inlet grid (1) has a planar or three-dimensional structure.

8. The water treatment apparatus according to claim 7, wherein the water inlet grid (1) of the three-dimensional structure is one of a cone shape, a hemispherical shape, a rectangular parallelepiped shape, a square body shape, a semi-cylindrical shape, a truncated cone shape, or a combination of a plurality of shapes.

9. The water treatment apparatus according to claim 5, wherein the biological packing of the cultivation unit (3) is a densely arranged solid packing.

10. The water treatment apparatus according to claim 9, wherein the solid packing is fixed to a thin rod or a chain, and one end of the thin rod or the chain is fixed to an inner side of an upper portion of the tank, or both ends of each thin rod or chain are fixed to an upper portion and a lower portion of the tank, respectively.

11. The water treatment apparatus according to claim 9, wherein the bio-filler of the cultivation unit (3) is a combined bio-filler made of bio-fillers of various materials.

12. The water treatment apparatus according to claim 5, wherein the biological wall member constituting the biological wall having the revolution structure is composed of a biological filler and a filler plate frame to which the biological filler is fixed by a pressing plate, the filler plate frame being welded in or in drawing-type engagement with a housing frame.

13. The water treatment apparatus of claim 12, wherein the bio-filler is a polyurethane bio-filler.

14. The water treatment apparatus according to claim 5, further comprising a drainage pump (61), wherein the drainage pump (61) is disposed at a corner of the tank downstream of the water flow, and the negative pressure formed by the operation of the drainage pump enables water outside the tank to flow into the tank and be treated and purified by each unit, and the treated water is discharged outside the tank or enters a subsequent water treatment unit by the drainage pump (61).

15. The water treatment apparatus according to claim 14, further comprising a reflux pump (62), the reflux pump (62) leading back part of the microorganisms scraped off regularly on the biological wall at the bottom of the tank to the cultivation unit (3) or the treatment unit (5) through a pipeline.

16. The water treatment apparatus according to claim 15, characterized in that the drainage pump (61) or its water inlet is provided in a bracket at a height intermediate the tank; the reflux pump (62) or a water inlet thereof is arranged on the inner side surface of the bottom of the box body.

17. The water treatment apparatus according to claim 5, wherein a filter unit (8) for filtering the water treated by the treatment unit (5) is provided at the rear of the housing of the water treatment apparatus.

18. A water treatment apparatus according to claim 5, characterized in that the water treatment apparatus further comprises a floating unit (9), which floating unit (9) is arranged at the bottom and/or at the top of the apparatus housing for suspending at least a main body part of the apparatus housing in the body of water to be treated.

19. A water treatment device according to claim 18, characterized in that the floating unit (9) is arranged outside the bottom casing of the tank, or that the floating unit (9) itself forms the bottom of the tank.

20. A water treatment device according to claim 19, characterized in that the floating unit (9) comprises a polyurethane hard foam material.

21. The water treatment apparatus according to claim 5, further comprising a floating depth adjusting unit (7), the adjusting unit (7) being constituted by a floating runner and a fixed pole foot, wherein,

the floating sliding cylinders are positioned at four corners of the shell (2) and welded into a whole with the shell (2), and the end surfaces of the floating sliding cylinders are flush with the end surfaces of the box body;

the fixed rod foot can slide in the floating slide cylinder.

22. A water treatment system comprising a floating integrated water treatment apparatus according to any one of claims 5 to 21.