CN108773970B

CN108773970B - Floating type comprehensive water treatment equipment, water treatment method and backwashing method of equipment

Info

Publication number: CN108773970B
Application number: CN201810535356.3A
Authority: CN
Inventors: 许元敏
Original assignee: Nanjing Tianhe Water Environmental Technology Co ltd
Current assignee: Nanjing Tianhe Water Environmental Technology Co ltd
Priority date: 2015-08-03
Filing date: 2016-04-15
Publication date: 2021-01-15
Anticipated expiration: 2036-04-15
Also published as: CN205419988U; CN105668950B; CN108773970A; CN205528306U; CN105668950A; CN205347140U

Abstract

A floating type comprehensive water treatment device, a water treatment method and a backwashing method of the device. The apparatus comprises: the device comprises a shell unit (100), a culture unit (200), a filtering unit (300) and an aeration unit (400), wherein the aeration unit (400) performs aeration treatment on water to be treated; the filtering unit (300) is used for filtering the water treated by the aeration unit (400); the culture unit (200) is used for culturing aerobic microorganisms; the aeration unit (400) comprises: the aeration unit (400) is divided into an upper cavity and a lower cavity by the sealing plate (401); the water distribution cavity (408) is provided with a water inlet hole (403) and a water diversion groove (402); the water distribution tank (406) is provided with a water distribution port (407); the piston (405) is connected with the buoy (404) into a whole, and the piston (405) slides up and down according to the water level of the buoy (404).

Description

Floating type comprehensive water treatment equipment, water treatment method and backwashing method of equipment

The present application is a divisional application of patent application entitled "floating integrated water treatment apparatus, water treatment method and backwashing method for the apparatus" filed on 2016, 4, 15 and 201610235935.7.

Technical Field

The invention relates to water treatment equipment and a water treatment method, in particular to floating type comprehensive water treatment equipment, a water treatment method and a backwashing method of the equipment.

Background

The water treatment objects mainly comprise natural water bodies and artificial water bodies. Such as river and lake water bodies, garden landscape water bodies, culture water bodies, fountains, swimming pools, water parks and the like. Most of the water bodies have the characteristics of low pollutant concentration, diversified pollution sources and great water quantity, have high requirements on water quality and sanitary conditions, and can continuously generate artificial or non-artificial pollution in the using process. Because the periodic replacement of the stored water in these water bodies causes huge waste of water resources and high cost, the water circulation treatment equipment is mostly adopted to purify these water bodies at present.

The traditional water circulation treatment equipment is fixed on the shore (or a shore machine room) or in a water body to be treated, so that a plurality of water treatment equipment are required to be arranged for the water body with larger water surface scale, such as a large lake, a long river and the like, on one hand, the facility cost is increased, and on the other hand, the workload of maintenance and cleaning is increased.

Boat-type water treatment apparatuses have been considered. For example, in chinese patent ZL00124828.6, a ship-type air-float algae removal device and method is disclosed. This ship formula air supporting removes equipment that algae device adopted through installing a whole set of water treatment process on the ship, specifically, includes: the device comprises a tubular static mixing reactor for dosing and mixing, a flocculation reactor, a sludge tank, an air floatation contact chamber, a separation chamber, an overflow weir and the like which are connected into a whole, and algae in the water body is removed by the air floatation principle. According to the scheme disclosed in the specification of the patent, only the water treatment equipment is arranged on a ship, raw water to be treated is lifted into the treatment equipment on the ship by a water pump, the raw water is treated on the ship, and the treated water is discharged back to a water body. That is, compared to a water circulation treatment apparatus disposed on the bank of a water body or disposed in the water body, the solution actually changes only the carrier of the water treatment apparatus without changing the structure and function of the water treatment apparatus. Therefore, the treatment capacity of the water treatment apparatus obtained by implementing this embodiment is predictably quite limited due to the limitations of the load and volume of the ship as a carrier, and the like. From the data described in the specification of the patent, the design flow range is 1.0-4.0 cubic meter per hour, so that the water treatment requirements of large water bodies such as rivers and lakes are difficult to meet, and particularly, the actual treatment flow rate is often reduced under the condition that the water quality of the water body to be treated is poor.

For another example, chinese patent application 201210162107.7 discloses a ship type sewage treatment system based on SBR process, which is also designed to realize the mobile function of the water treatment equipment by installing the SBR water treatment equipment on the hull of the ship with retractable wheels, and to save facilities such as a regulation tank, a primary sedimentation tank and a secondary sedimentation tank which are installed on the land. However, as described in the specification of the present patent application, the sewage treatment process of the ship type sewage treatment system consists of the mature sewage treatment technology of anaerobic contact oxidation and SBR. That is, as for the water treatment process itself, the existing mature technology is adopted. The SBR is a Sequencing Batch Activated Sludge Process (Sequencing Batch Reactor Activated Sludge Process), which is called a Sequencing Batch Activated Sludge Process (SBR) for short. SBR is a process of biologically treating activated sludge for wastewater based on degradation of organic matters, ammonia, nitrogen and other pollutants in wastewater by suspended microorganisms under aerobic conditions. The sewage treatment device operates in an intermittent aeration mode according to time sequence, changes the growth environment of activated sludge, and is widely accepted and adopted by the whole world. The common process of SBR is divided into five stages: water inlet, aeration reaction, precipitation (sedimentation), water decanting (water outlet), and standing (standing or standby).

The root cause of the deterioration of the water quality of rivers and lakes is the eutrophication of water caused by the discharge of pollutants, so that a large amount of oxygen consuming organisms such as algae are excessively proliferated, resulting in the lack of oxygen in the water, thereby destroying the original ecosystem of the water body. Therefore, the principle of water circulation treatment is a fundamental solution by increasing the oxygen content of water in a water body. Further, a dissolved oxygen aeration method can be adopted to increase the oxygen content of the water body.

The proposal of combining a water circulation treatment device with a dissolved oxygen aeration device has been applied. For example, in the publication of patent publication CN1297490C of the invention in china, an apparatus for treating water in rivers and lakes and a method thereof are disclosed. The water treatment device comprises a sleeve-shaped device for receiving the new water, wherein the bottom of an inner cylinder is connected with a water inlet pipe, V-shaped overflow grooves are radially and uniformly distributed between the inner cylinder and an outer cylinder, and the bottom edges and the two upper edges of the V-shaped overflow grooves form a water curtain. Harmful gas in water volatilizes through the contact of cascade and atmosphere to make the oxygen in the air dissolve in water, thereby realize the oxidation, the activation and the freshing of water.

For another example, chinese utility model ZL201320139623.8 discloses a "dissolved oxygen aeration apparatus and a water treatment apparatus using the same", which provides power for dissolved oxygen aeration by using potential energy of the drop between the water surface of the water to be treated outside the apparatus and the drop water surface inside the apparatus, and also makes the movement of the water inside the apparatus more stable; the control water surface inside the device is basically stable through controlling the water inflow, so that the height difference from the falling water surface to the water surface is ensured, and the space of the falling type dissolved oxygen aeration is ensured.

Although, as described above, it has been considered to combine the existing water circulation treatment apparatus with the hull, no proposal has been made to combine the water treatment apparatus including the dissolved oxygen aeration device with a floating carrier such as the hull, and no concrete proposal has been made for a floating type integrated water treatment apparatus based on the dissolved oxygen aeration technique.

On the other hand, in recent years, a technique of purifying water by a biological means has also been developed. The biological purification of sewage is usually carried out by two microbial populations, anaerobic and aerobic. Wherein, aerobic microbial's aerobic process need let in a large amount of compressed air from aerobic effluent water sump bottom to pending sewage in, for the aerobic microbial of waste water provides sufficient oxygen, this process is also called aeration process to supply aerobic microbial to utilize, then remove and reduce organic pollutant and nitrogen phosphorus in aquatic through aerobic microbial's decomposition, thereby realize the purification of water.

For example, in chinese patent application publication CN104710085A, a high efficiency AOAS integrated sewage treatment apparatus and process thereof is disclosed, wherein the sewage treatment apparatus comprises a primary reaction sedimentation tank and a secondary reaction sedimentation tank for performing aerobic treatment, and the primary reaction sedimentation tank and the secondary reaction sedimentation tank are aerated by an aeration system (comprising a blower, an air supply connection pipe, and aeration discs respectively disposed at the bottoms of the primary reaction sedimentation tank and the secondary reaction sedimentation tank). For another example, in chinese patent application publication CN104724817A, a net cage type biological carrier and an immobilized microorganism sewage treatment apparatus are disclosed, wherein the net cage type biological carrier is composed of a net cage and a biological filler filled in the net cage, and is stacked in a sewage treatment tank of the immobilized microorganism sewage treatment apparatus.

In the prior art solutions such as disclosed in the above patent applications, aerobic treatment by microorganisms is achieved by providing a sewage treatment tank or a sedimentation tank as a reaction vessel, and a certain amount of land needs to be occupied near the water body to be treated, which may damage the overall environment around the water body to be treated and is also not easy to be achieved for landscape water bodies, urban rivers, and the like; the aeration pipe made of steel pipe or plastic pipe is directly laid at the bottom of the aeration tank, and the aeration holes on the wall of the aeration pipe disperse the quantitative air into a large amount of bubbles, although the structure is simple and the resistance is small, the average diameter of the bubbles is large, the oxygen transfer efficiency between gas and liquid is low, and the holes are easily blocked by sludge or microorganism; in addition, the water in the pool needs to be drained during equipment installation, maintenance, movement and replacement, and the equipment is very inconvenient.

Disclosure of Invention

In order to solve at least one of the above technical problems, according to an aspect of the present invention, there is provided a floating type integrated water treatment apparatus, including: the device comprises a shell unit, a culture unit, a filtering unit and an aeration unit, wherein the aeration unit is used for carrying out aeration treatment on water to be treated; the filtering unit is used for filtering the water treated by the aeration unit; the culture unit is used for culturing aerobic microorganisms; the culture unit, the filtering unit and the aeration unit are arranged in the cabin body of the shell unit.

According to the floating type integrated water treatment equipment provided by the embodiment of the invention, water treated by the aeration unit or backwashing water obtained by backwashing the filtering unit is optionally output to the culture unit.

According to the floating type integrated water treatment device of the embodiment of the invention, optionally, the culture unit comprises: the device comprises a filler, an aerator and a gas transmission pipe, wherein the filler is used for attaching and culturing aerobic microorganisms; the plurality of aerators are connected through the gas pipe to form a gas pipe network, and the aerators output the gas conveyed by the gas pipe to the filler.

According to the floating type integrated water treatment device provided by the embodiment of the invention, optionally, the aerator is arranged below the filler.

According to the floating type integrated water treatment device provided by the embodiment of the invention, the membrane of the aerator is optionally provided with micro aeration holes.

According to the floating type integrated water treatment equipment provided by the embodiment of the invention, optionally, the culture unit is an independent closed cavity, and a gas-liquid separation valve is arranged at the top of the culture unit.

According to the floating type integrated water treatment device of the embodiment of the invention, optionally, the culture unit further comprises: the device comprises a sludge storage cavity, a sludge suction pipe and a deposition plate, wherein the deposition plate is arranged on the bottom side of the culture unit and is in gradient arrangement; a sludge suction pipe is arranged in the sludge storage cavity and discharges the dirt sucked from the sludge storage cavity.

According to the floating type integrated water treatment equipment provided by the embodiment of the invention, one or more spoilers are optionally arranged in the culture unit.

According to the floating type integrated water treatment device of the embodiment of the invention, optionally, the aeration unit comprises: the aeration device comprises a water distribution cavity, a sealing plate, a piston, a buoy and a water distribution groove, wherein the sealing plate divides the aeration unit into an upper cavity and a lower cavity; the water distribution cavity is provided with a water inlet and a water distribution groove; the water distribution tank is provided with a water distribution port; the piston is connected with the buoy into a whole, and the piston slides up and down according to the height of the water level of the buoy.

According to the floating type integrated water treatment equipment provided by the embodiment of the invention, optionally, the water distribution grooves and/or the water distribution ports have a V-shaped structure.

According to the floating type integrated water treatment device of the embodiment of the invention, optionally, the filtering unit comprises: one or more sets of filters for water purification, one or more clean water tanks for storing filtered water.

According to the floating type integrated water treatment device of the embodiment of the invention, optionally, the filter comprises: the water distributor, the filtering layer, the supporting plate, the water seeping device and the water distribution pipe are arranged in the lower cavity of the filter; water to be filtered enters the lower cavity of the filter through the water distribution pipe, the filtering layer and the water through holes arranged on the supporting plate; the water collected by the water seepage holes of the water seepage device is input into the clean water tank through the water diversion pipe.

According to the floating type integrated water treatment equipment provided by the embodiment of the invention, optionally, the culture unit, the filtering unit and the aeration unit form independent cabins respectively in the shell unit.

According to another aspect of the present invention, there is provided a water treatment system comprising the floating type integrated water treatment apparatus as described above.

According to still another aspect of the present invention, there is provided a water treatment method including: carrying out aeration treatment on water to be treated; filtering the water after aeration treatment; the water after aeration treatment or filtration treatment is used for culturing aerobic microorganisms.

According to the water treatment method of the embodiment of the present invention, optionally, the aeration treatment, the filtration treatment and the culture of aerobic microorganisms are all performed inside the water treatment apparatus floating in the water body.

According to the water treatment method of the embodiment of the invention, optionally, the aeration treatment comprises: raw water to be treated enters the upper cavity of the aeration unit through the water inlet grille, enters the water distribution cavity from the water inlet holes, is uniformly distributed into the water distribution grooves arranged on the two sides of the water distribution groove through the water distribution groove, and then falls to the lower cavity of the aeration unit through the water distribution port.

According to the water treatment method of the embodiment of the invention, optionally, the filtering treatment comprises: pumping the water treated by the aeration unit from the aeration unit and inputting the water into a filter; in the filter, the water passes through the water distribution pipe, is percolated by the filter layer, then reaches the lower cavity of the filter through the water passing holes, is collected by the water permeating holes of the water seeping device and is output to the water distribution pipe, and then is output to the clean water tank.

According to still another aspect of the present invention, there is provided a method of backwashing the aforementioned floating integrated water treatment apparatus, comprising: water is pumped from a clean water tank of the filter and then enters a lower cavity of the filter through a water distribution pipe and water seepage holes of a water seepage device; the water entering the upper cavity of the filter through the water holes arranged on the supporting plate drives the filter material of the filter layer to loosen or even turn over, so that the filter layer is cleaned, and the water after cleaning the dirt and the cleaned dirt are conveyed into the culture unit through the water distribution pipe and the blow-off pipe.

According to the floating type integrated water treatment equipment provided by the embodiment of the invention, a plurality of water treatment units are highly integrated in one complete equipment, so that the floating type integrated water treatment equipment has the characteristics of compact system structure, convenience in control, centralized functions and large treatment capacity, and has a wide application range; the treatment functions of water such as falling aeration, filtration, microorganism culture and the like can be realized, and the unified collection and centralized treatment of the filtered and precipitated dirt can be realized; and the backwashing function can be realized, and the process and cost for disassembling and cleaning are saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description only relate to some embodiments of the present invention and are not limiting on the present invention.

FIG. 1 schematically illustrates a top cross-sectional view of a floating integrated water treatment apparatus according to one embodiment of the present invention;

FIG. 2 is a top plan view of the floating integrated water treatment apparatus corresponding to FIG. 1;

FIG. 3 is a top plan view of the floating integrated water treatment apparatus corresponding to FIG. 1;

FIG. 4 is an enlarged partial cross-sectional view corresponding to section line D-D indicated in FIG. 2;

FIG. 5 is an enlarged partial cross-sectional view corresponding to section line E-E indicated in FIG. 2;

FIG. 6 is an enlarged partial cross-sectional view corresponding to section line F-F labeled in FIG. 2;

FIG. 7 schematically illustrates the main assembly structure of the filtering unit of the floating type integrated water treatment apparatus of FIG. 1;

FIG. 8 shows an example of the internal structure of a valve block of the floating integrated water treatment facility of FIG. 1;

FIG. 9 schematically illustrates water purification treatment piping of the floating integrated water treatment facility of FIG. 1;

fig. 10 schematically illustrates a sewage line layout of the floating integrated water treatment apparatus of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of 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 the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

As described above, there has not been proposed a solution of combining a water treatment apparatus including a dissolved oxygen aeration device with a floating carrier such as a ship hull, and further, there has not been given a concrete solution of a floating type integrated water treatment apparatus based on a dissolved oxygen aeration technique. According to the embodiment of the invention, the floating type integrated water treatment equipment is provided, water treatment technologies such as dissolved oxygen aeration technology, filtering technology, microbial purification and the like are integrated, circulating water treatment is carried out on a water body bearing the equipment, and unified collection and centralized treatment of filtered and precipitated dirt can be realized.

The floating type integrated water treatment equipment is preferably suitable for rivers and lakes as landscape water bodies. According to the floating type integrated water treatment equipment, the existing water treatment equipment is not combined with a ship body, but a floating platform is designed, and the structure of the floating platform is integrally used for water circulation treatment of a water body; of course, from the perspective of external aesthetics, the configuration of the boat can also be configured by adding external structures and decorations.

Fig. 1 schematically illustrates an enlarged partial cross-sectional top view of a floating integrated water treatment apparatus according to an embodiment of the present invention. Fig. 2 is a plan view of the floating type integrated water treatment apparatus corresponding to fig. 1. The structure of the floating type integrated water treatment apparatus according to the embodiment of the present invention can be better understood by referring to fig. 1 and 2.

As shown in fig. 1 and 2, the floating type integrated water treatment apparatus has a shape like a boat. On one hand, the appearance design considers that the appearance of the equipment does not influence and damage the overall landscape of the treated water body as much as possible; another aspect is to take into account the mobility of the device in water. Alternatively, the floating type integrated water treatment apparatus according to the embodiment of the present invention may also take other shapes such as a circle, an oval, a square, etc.

As shown in fig. 1, the floating type integrated water treatment apparatus according to the embodiment of the present invention mainly includes: a housing unit 100, a culture unit 200, a filtration unit 300, and an aeration unit 400.

The housing unit 100 is the housing structure of the water treatment device for supporting and containing other structures within the device. As previously described, the housing unit 100 may have a boat-like shape from the viewpoint of overall landscape and mobility performance, as shown in fig. 1 and 2. Meanwhile, the housing unit 100 may also have a structure like a hull of a ship so that the water treatment apparatus as a whole floats on the water body in a ship-like manner.

Optionally, a sealed air compartment may be provided in the housing unit 100 to increase the overall buoyancy of the apparatus. The sealed air compartment may be arranged in the front, in the middle or in the rear of the apparatus, for example at the front, in the rear or in the middle side of the housing unit 100, etc. For example, in fig. 1 and 2, two airtight air chambers 101 are provided at the front and rear of the water treatment apparatus housing unit 100, and each airtight air chamber 101 is substantially symmetrical with respect to the central axis of the apparatus, so that the buoyancy of the apparatus can be increased, and the balance of the entire apparatus can be stabilized by the front-rear arrangement and the symmetrical structure. The sealed air chamber 101 may be a single chamber body, which is separated from other chamber body parts inside the equipment by the partition plate 102, or may include a plurality of sub sealed air chambers, which may also be symmetrically distributed about the central axis of the casing 100 from the viewpoint of balance.

Alternatively, the buoyancy and balance of the water treatment device can also be adjusted by adjusting the amount of water injected in the injection compartment by providing the injection compartment.

The culture unit 200, the filter unit 300 and the aeration unit 400 may form separate chambers inside the housing unit 100, respectively, and communicate with each other through pipes (and valves), so that not only the water at different stages of water purification treatment may be prevented from mixing with each other, but also the buoyancy of the apparatus may be increased by using the air-containing space of the chambers.

The culture unit 200 is isolated from the airtight gas container 101 and the filter unit 300 by the

partitions

102 and 201, respectively, to form independent chambers. Alternatively, the culture unit 200 may be a sealed chamber, which is in communication with other units or chambers via tubing.

The culture unit 200 comprises a sludge storage cavity 202, a sludge suction pipe 203, a deposition plate 204, an aerator 205, a filler 206 and an aeration pipe 208. As further shown in FIG. 3, the sediment plate 204 is disposed on the bottom side of the culture unit 200 and is sloped to facilitate the collection of sediment in water into the mud storage chamber 202. A mud suction pipe 203 is arranged in the mud storage cavity 202. The suction pipe 203 is connected to a sludge pump 343 (see fig. 5) which may be provided outside the culture unit 200 through a pipe, so that the sludge sucked from the sludge storage chamber 202 is discharged by the sludge pump 343. Optionally, a valve 210 is disposed on the pipeline between the suction pipe 203 and the sludge pump 343 to control the conduction of the pipeline.

According to an embodiment of the present invention, the culture unit 200 plays a more important role in culturing microorganisms for water treatment, in addition to collection of sludge in water. The microorganism used for water treatment can be aerobic microorganism generally, and organic pollutants and nitrogen and phosphorus in water are removed and reduced through the decomposition of the microorganism, so that the water is purified. For the cultivation of aerobic microorganisms it is on the one hand necessary that the aqueous environment in which the microorganisms multiply grow has a sufficient oxygen content and on the other hand it is also preferable that the aqueous environment also contains sufficient nutrients.

As shown in FIG. 3, the culture unit 200 includes a packing 206, an aerator 205, and a gas pipe 208.

The filler 206 is used to attach and culture microorganisms. The filler 206 may be a combination filler, a three-dimensional elastic filler, a porous suspension ball filler, or the like. Microorganisms are attached to the filler serving as the carrier to form a microbial film, and in the process that sewage flows through the microbial film, the sewage is degraded through the adsorption of organic matters, the diffusion of oxygen to the interior of the biological film and the actions of biological oxidation and the like generated in the film. And can simultaneously culture the propagation and growth of microorganisms, so that part of the microorganisms are separated from the filler and enter the water body, and the degradation and water purification effects in a wider range are realized.

The plurality of aerators 205 are connected by the gas pipe 208 to form a gas pipe network (the gas pipe network can have shapes such as round and square), the gas pipe network is arranged below the filler 206, and the filler 206 above the gas pipe network outputs gas, so that on one hand, the aerobic microorganisms in the filler 206 can be supplied with oxygen, and as the gas washes the microorganisms in water, mature microorganisms fall off from the filler 206 and enter the water to further grow and purify the water body, and on the other hand, the oxygen can be directly dissolved into the water. The aerator 205 is arranged at the lower part of the filler 206 and outputs the gas upwards, so that the gas can be driven to enter the filler 206 by the buoyancy of the gas, the aeration and oxygen dissolving efficiency is improved, and meanwhile, the gas pipe 208 and the aerator 205 are arranged at the lower part of the water treatment equipment (as shown in figure 3), the gravity center of the whole equipment can be reduced, and the whole stability is improved. Alternatively, the aerator 205 may be positioned on the side or above the packing 206 by constructing a gas transmission pipe network.

Alternatively, the gas pipe network is supplied with gas by a gas pump 349 disposed outside the culture unit 200, and the supplied gas may be outside air, oxygenated air, oxygen, or the like. Specifically, the controller 346 (which may be disposed in the filter unit 300 as shown in fig. 1 or in other parts of the water treatment facility) may activate the air pump 349 to generate high-pressure air, and make the air reach the aerator 205 connected to the air pipe 208 via the air pipe 208, and discharge the micro-bubbles through the aeration holes on the membrane of the micro-porous aerator 205, so as to achieve aeration and oxygen dissolution in the sewage, and provide sufficient oxygen for the growth of microorganisms.

According to the floating type integrated water treatment equipment provided by the embodiment of the invention, the filler attached with microorganism growth is arranged in the culture unit 200, so that an environment for aerobic microorganism growth can be created, the aerobic microorganism can be attached to the filler to grow, and the aerobic microorganism on the filler can fall off to grow in water, and the water treatment is efficiently carried out.

Optionally, a gas-liquid separation valve 207 is disposed at the top of the sealed cabin of the culture unit 200, so that on one hand, the gas output by the aerator 205 passes through the water and the filler 206 and then is released from the gas-liquid separation valve 207 to the outside of the apparatus, and on the other hand, the water inside the sealed cabin of the culture unit 200 can be prevented from overflowing. Other gases that may be generated by culturing microorganisms and treating water in the culture unit 200 may also be discharged from the gas-liquid separation valve 207.

Optionally, one or more spoilers 209 (shown in FIG. 1) may be disposed within the culture unit 200, the spoilers 209 being distributed within the cavity of the culture unit 200, such as near the water inlet of the culture unit 200, the spoilers 209 slowing the water flow rate and promoting the gradual deposition of contaminants and impurities in the water.

As shown in FIGS. 1 to 3, in order to increase the amount of microorganism culture, the amount of water treatment, etc., culture units 200 may be provided at both the front and rear of the water treatment apparatus. FIG. 4 is an enlarged partial cross-sectional view corresponding to the cut line D-D indicated in FIG. 2, and one arrangement of gas delivery conduits can be seen in FIG. 4.

The floating type integrated water treatment apparatus according to the embodiment of the present invention further includes an aeration unit 400 and a filtering unit 300 as described above. Wherein, the aeration unit 400 is used for carrying out aeration treatment on the water to be treated, so that the water to be treated obtains dissolved oxygen in contact with air, and harmful gases in the water are exchanged into the air; the filtering unit 300 is used for filtering and purifying the water subjected to the aeration treatment by the aeration unit 400. Further, in the process of backwashing the filter unit 300, water (sewage) formed after backwashing is injected into the culture unit 200, and the aforementioned sewage sedimentation treatment and microbial culture are performed. Specifically, the filtering unit 300 filters water and retains certain filter residue dirt, when the filtering unit 300 is backwashed, the filter residue dirt is washed to the culture unit 200, on one hand, the dirt and sludge can be deposited through the deposition plate 204, the sludge storage cavity 202, the sludge suction pipe 203 and other parts, and on the other hand, the filter residue dirt can also provide nutrients for the propagation and growth of microorganisms. In other words, the filter unit 300 is communicated with the culture unit 200 when the filter unit 300 is backwashed, and the culture unit 200 can independently operate to culture, propagate, grow, and release microorganisms, etc. at other times.

The spatial arrangement and the main structure of the aeration unit 400 and the filter unit 300 can be seen in conjunction with fig. 1 and 2. For the case where two sets of the culture units 200 are provided at the front and rear of the apparatus, respectively, two sets of the aeration unit 400 and the filtration unit 300 may be provided, respectively, and pipes, valves, and the like may be provided accordingly. As shown, the aeration unit 400 is disposed at the side of the inner cavity of the apparatus housing 100 because the water inlet corresponding thereto may be disposed at the side of the apparatus.

Optionally, a water inlet grille 108 is arranged at the water inlet of the aeration unit 400 or at the water inlet of the water treatment equipment communicated with the water inlet of the aeration unit 400, and the water inlet grille 108 can block large floating objects or suspended objects such as broken tree branches outside the equipment to prevent the large floating objects or suspended objects from entering the inside of the water treatment equipment to cause pipeline blockage or water channel blockage and other faults.

Optionally, as shown in fig. 1, a manhole 307 is provided at a portion of the housing 100 above the aeration unit 400 to facilitate personnel to enter the equipment compartment for maintenance.

Fig. 5 and 6 are enlarged partial sectional views corresponding to the cutting lines E-E and F-F marked in fig. 2, respectively, and further structures of the aeration unit 400 can be seen from fig. 5 and 6. As shown in the drawing, the aeration unit 400 is isolated from other chambers by partitions 351 into independent chambers (as shown in FIG. 1, specifically, the partitions 351 may have an "L" shape, which is matched with the partitions 201 of the cultivation unit 200 and the corresponding portions of the housing 100 to isolate the chambers of the aeration unit 400).

As shown in fig. 6, the aeration unit 400 includes: water distribution cavity 408, sealing plate 401, piston 405, buoy 404 and water distribution groove 406. The sealing plate 401 divides the aeration unit 400 into an upper cavity and a lower cavity; the water distribution cavity 408 is provided with a water inlet 403 and a water diversion groove 402; the water distribution tank 406 is provided with a water distribution port 407; the piston 405 is integrated with the float 404 and slides up and down according to the water level of the float 404.

When the floating type integrated water treatment equipment according to the embodiment of the invention floats in the water body to be treated, the raw water to be treated enters the upper cavity of the aeration unit 400 through the water inlet grille 108, enters the water distribution cavity 408 from the water inlet 403, is uniformly distributed in the water distribution grooves 406 arranged at the two sides of the water distribution groove 402 through the water distribution groove 402, and then falls to the lower cavity of the aeration unit 400 through the water distribution port 407. Harmful gases such as biogas of raw water can be discharged in the falling process, the dissolution and diffusion of oxygen can be improved through water flow turbulence caused by the water distribution tank 406 and the water distribution port 407, the dissolved oxygen aeration capacity of water treatment is improved, and the water quality is improved by falling oxygen cascade. When the water level in the aeration unit 400 rises to a set height, the piston 405 slides upwards to block the water distribution holes 403 under the buoyancy action of the buoy 404 so as to prevent water from entering; whereas the inlet hole 403 is filled with water and the flow rate of the filled water is automatically adjusted by the change of the clearance between the piston 405 and the inlet hole 403. The automatic control of the falling water level height realized by the structure can play the role of energy dissipation and rectification on falling water flow.

Alternatively, as shown in fig. 5 and fig. 6, the water distribution grooves 406 and/or the water distribution ports 407 are V-shaped structures, so that uniform water flow falling from high position can be formed by overflowing through the V-shaped water distribution ports 407 (shown in fig. 6). Furthermore, the V-shaped structures of the water distribution tank 406 and the water distribution port 407 are perpendicular to each other in the extending direction, which is more beneficial to the uniform distribution of the water falling into the water from each water distribution port.

Alternatively, the aeration unit 400 may employ aeration treatment means other than drop aeration.

The water treated by the aeration unit 400 is pumped into the filtering unit 300 by a water pump for filtering treatment.

Fig. 1 and 7 show the main component structures of the filter unit 300 from different angles. The filter unit 300 includes: one or more groups of filters for water purification, one or more groups of hair filters for filtering impurities which are not easy to degrade and block pipelines, such as hair, one or more clean water tanks for storing filtered water, and corresponding auxiliary components such as pipelines, valves, tee joints and pipe junctions. Specifically, as shown in fig. 1 and 7, the filter unit 300 includes: the device comprises a filter 301, a filter 302, a valve group 320, a valve group 321, a clear water tank 310, a hair filter 317, a hair filter 325, a hair filter 335, a clear water outlet 311, a microorganism outlet 313, a sludge outlet 341, unit process connecting pipes, valves, a tee joint and the like. The clean water tank 310 is provided with a water port 326 and a water port 327. One end of the clean water outlet 311 is connected with the clean water tank 310, and the other end is provided with a valve 312.

As can be seen from fig. 1, the filters 301 and 302, and the valve sets 320 and 321 and the hair filters 317 and 325 respectively corresponding to them, actually constitute two sets of parallel water filtration treatment paths, that is, according to the embodiment of the present invention, the expansion of the water treatment capacity and optionally the adjustment of the filtration treatment capacity through, for example, the valves can be realized by setting and adjusting the number of parallel subunits for performing filtration treatment on water. Of course, the multi-stage filtering process can also be implemented in a serial manner, for example, other hair filters can be optionally arranged in series in a pipeline before or after the hair filter 317 and the hair filter 325, so as to implement the multi-stage filtering process for impurities such as hair. Alternatively, serial/parallel and parallel/serial conversion is achieved by controlling the conductance of the lines with valves.

More specifically, as shown in fig. 7, a water distributor 303, a filtering layer 305, a supporting plate 306, a water seeping device 308, and a water distributor 304 are arranged in each of the filters 301 and 302; the filters 301, 302 and the clean water tank 310 may be independent sealed cavity structures. Optionally, filters 301 and 302 are each provided with a gas-liquid separator 315. The supporting plate 306 is provided with a water through hole 307. The water seepage device 308 is provided with a water seepage hole 309.

In addition, fig. 8 shows an internal structure example of the valve group. Taking the valve group 320 as an example, the valve group 320 includes a valve 321A, a valve 321B, a valve 321C, a valve 321D, a water pipe 321E, a tee joint 321F, and a tee joint 321G. The tee 321F is disposed between the valve 321A and the valve 321B, and the tee 321G is disposed between the valve 321D and the water pipe 321E.

The hair filter is mainly designed to filter impurities such as hairs which may block a subsequent pipeline, and the hair filter is not required.

The control part and the power part of the floating type integrated water treatment equipment according to the embodiment of the invention comprise: the controller 346, the water pump 318, the water pump 324 and the sludge pump 343 may be disposed in the body of the filter unit 300, or may be disposed in another body outside the filter unit 300, and reference numerals are given here only for convenience of reference and are not limited to these components included in the filter unit 300.

Based on the above structure, when performing the water filtration treatment, for example, the controller 346 respectively starts the water pump 318 and the water pump 324, extracts the water treated by the aeration unit 400 from the aeration unit 400 through the valve 316 (see also fig. 9), the hair filter 317 and the hair filter 325, then enters the filter 301 and the filter 302 through the tee joint 321F and the tee joint 321G via the water pipe 321E, and in each filter, percolates through the water distribution pipe 303 and the filter layer 305 and then reaches the lower filter cavity through the water through hole 307 (the support plate 306 where the water through hole 307 is located divides the inner cavity of the filter into an upper cavity and a lower cavity, and the support plate can be used for supporting the filter material of the filter layer 305), then collects and outputs the water through the water seepage hole of the water percolator 308 to the water distribution pipe 304, and collects the water through the valve 321C and collects the water in the clean water tank 310 via the. And finally out of the apparatus through a clean water outlet 311. When the water filtration treatment is carried out, the rest of the communication pipelines and the valves can be closed. Optionally, a filter material may be disposed in the lower cavity of the filter, the water seepage device 308 is embedded therein, and the particle size of the filter material is larger than the diameter of the water seepage holes 309 of the water seepage device 308, so that the water seepage holes 309 of the water seepage device 308 are not easily blocked.

Fig. 8 is a cross-sectional view of a water treatment apparatus according to an embodiment of the present invention, from which a water purification piping including an aeration unit 400 and a filter unit 300 can be schematically seen.

According to the floating type comprehensive water treatment equipment provided by the embodiment of the invention, through adopting a reasonable and efficient filter and pipeline layout, impurities in water can be intercepted to a great extent, and the back washing of the filter can be realized.

The backwashing operation of the filter unit can be automatically performed regularly or according to preset conditions, firstly, the valve 316 is closed, the controller 346 starts the water pump 318 to pump clean water from the clean water tank 310 through the communicating pipe 328, the valve 330, the three-way 332 and the water port 327 (the clean water can be water obtained by the treatment of the device or can be injected into the clean water tank 310 from the outside of the device), and then the clean water enters the lower cavity of the filter through the water pipe 321E, the valve 321D, the three-way 321G, the water distribution pipe 304 and the water seepage hole 309 of the water seepage device 308; the filter material of the filter layer 305 is driven to loosen or even tumble by the water holes 307 arranged on the supporting plate 306, so that the dirt in the filter layer 305 is cleaned, and the water after the dirt is cleaned and the cleaned dirt are conveyed into the culture unit 200 through the water distribution pipe 303, the tee joint 321F, the valve 321A, the sewage discharge pipe 322 and the tee joint 338 through the water port 337, so that a nutritional condition is created for the growth of microorganisms. When backwashing is carried out, the rest of the communication pipelines and valves can be closed.

According to the structural design of the water treatment equipment provided by the embodiment of the invention, the flushing water obtained after the back flushing of the filtering unit can be input into the culture unit 200, and the water in the aeration unit 400 can be directly input into the culture unit 200. Specifically, the controller 346 starts the pump 336 to pump the aerated water (or directly feed the raw water to be treated) from the aeration unit 400 through the valve 334 and the hair filter 335 (see fig. 7), and then the aerated water is fed to the culture unit 200 through the water inlet 337 through the water pipe valve 339, the tee 338 and the sewage pipe 322. Similar to the above-described discharge of backwash water into the culture unit, the water also subjected to the aeration dissolved oxygen treatment can provide sufficient oxygen and a good growth environment for the growth of microorganisms. Microorganisms are attached to the filler as a carrier to form a microbial film, and in the process that sewage flows through the microbial film, the sewage is degraded through the adsorption of organic matters, the diffusion of oxygen to the interior of the biological film and the actions of biological oxidation and the like generated in the film; the treated water and the microorganisms falling off from the filler are discharged out of the shell unit 100 to the water body through the microorganism outlet 313, so as to create water ecological restoration conditions for the raw water of the water body; and can improve the microorganism concentration in the raw water and improve the water quality restoration speed and effect through the water path circulation.

Fig. 10 schematically illustrates a sewage line layout of the floating integrated water treatment apparatus according to an embodiment of the present invention. The sewage entering the culture unit 200 is guided by the spoiler, the water flow speed is reduced, and the sewage is gradually deposited in the sludge storage cavity 202. The sludge pump 343 is periodically started by the controller 346 and is discharged out of the housing unit 100 to a collection device (such as a water-tight sludge storage bag arranged outside the housing) through the valve 210, the tee 344, the drain 341 and the valve 342, so that centralized collection and unified treatment are facilitated, and secondary pollution to raw water is avoided.

The floating integrated water treatment apparatus according to an embodiment of the present invention optionally includes an enhanced treatment unit (not shown) for further treating the water to be treated, the water under treatment, or the treated water. The strengthening treatment unit can comprise a dosing pump and a reagent box and is used for dosing macromolecular flocculating agents and other reagents so as to improve the removal rate of substances to be removed in water treatment such as suspended matters, algae, BOD, COD, ammonia nitrogen and the like in water. The enhanced treatment unit may further include ultraviolet and/or ultrasonic devices for sterilizing bacteria and destroying algae spores in the water.

According to the floating type integrated water treatment equipment provided by the embodiment of the invention, the power can be provided by the carried fuel generator, the power can also be provided by the wind driven generator, and the power can also be provided by the solar cell panel. The power is provided by a non-fossil fuel combustion mode, so that the device is more environment-friendly and does not cause any secondary pollution to the water body.

According to the floating type integrated water treatment equipment provided by the embodiment of the invention, the water treatment system capable of automatically managing and operating can be constructed together with ecological water treatment facilities and the like arranged in or around the water body.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims

1. A floating type comprehensive water treatment device,

it is characterized by comprising:

a housing unit (100), a culture unit (200), a filtration unit (300) and an aeration unit (400),

wherein the content of the first and second substances,

the aeration unit (400) performs aeration treatment on water to be treated;

the filtering unit (300) is used for filtering the water treated by the aeration unit (400);

the culture unit (200) is used for culturing aerobic microorganisms, and the aerobic microorganisms are used for degrading water flowing through or entering a water body for degradation;

the culture unit (200), the filter unit (300) and the aeration unit (400) are arranged in the cabin body of the shell unit (100) and are communicated with each other through pipelines and valves,

wherein the aeration unit (400) comprises: a water distribution cavity (408), a sealing plate (401), a piston (405), a buoy (404), a water distribution groove (406),

the sealing plate (401) divides the aeration unit (400) into an upper cavity and a lower cavity;

the water distribution cavity (408) is arranged in the upper cavity of the aeration unit (400) and is provided with a water inlet (403) and a water diversion tank (402);

the water distribution tank (406) is arranged at two sides of the water distribution tank (402) and is provided with a water distribution port (407), and water in the upper cavity falls to the lower cavity of the aeration unit (400) through the water distribution port (407);

the piston (405) is connected with the buoy (404) into a whole, and the piston (405) slides up and down according to the water level of the buoy (404) to block the water distribution holes (403).

2. The floating type integrated water treatment apparatus according to claim 1, wherein water treated by the aeration unit (400) or backwash water obtained by backwashing the filtering unit (300) is outputted to the cultivation unit (200).

3. The floating integrated water treatment apparatus according to claim 1, wherein the cultivation unit (200) includes: filler (206), an aerator (205) and a gas pipe (208),

wherein the content of the first and second substances,

the filler (206) is used for attaching and culturing the aerobic microorganisms;

the aerators (205) are connected through the gas delivery pipes (208) to form a gas delivery pipe network, and the aerators (205) output the gas delivered by the gas delivery pipes (208) to the filler (206).

4. The floating integrated water treatment plant according to claim 3, characterized in that the aerator (205) is arranged below the packing (206).

5. The floating integrated water treatment plant according to claim 3, characterized in that the membrane of the aerator (205) has micro aeration holes.

6. The floating type integrated water treatment apparatus according to claim 1, wherein the cultivation unit (200) is an independent closed chamber, and a gas-liquid separation valve (207) is provided at the top thereof.

7. The floating integrated water treatment apparatus according to claim 1, wherein the cultivation unit (200) further comprises: a mud storage cavity (202), a mud suction pipe (203), a deposition plate (204),

wherein the content of the first and second substances,

the deposition plate (204) is arranged on the bottom side of the culture unit (200) in a gradient manner;

a sludge suction pipe (203) is arranged in the sludge storage cavity (202), and the sludge suction pipe (203) discharges the dirt sucked from the sludge storage cavity (202).

8. The floating integrated water treatment apparatus according to claim 7, wherein one or more spoilers (209) are further provided in the cultivation unit (200).

9. The floating integrated water treatment plant according to claim 1, characterized in that the water distribution tank (406) and/or the water distribution port (407) has a V-shaped structure.

10. The floating integrated water treatment apparatus according to claim 1, wherein the filtering unit (300) includes: one or more sets of filters (301, 302) for water purification, one or more clean water tanks (310) for storing filtered water.

11. The floating integrated water treatment apparatus according to claim 10, wherein the filter (301, 302) comprises: water distribution pipe (303), filtering layer (305), supporting plate (306), water seeping device (308), water distribution pipe (304),

wherein the content of the first and second substances,

the support plate (306) divides the filter (301, 302) into an upper cavity and a lower cavity, the water distribution pipe (303) and the filtering layer (305) are arranged on the upper cavity of the filter, and the water seeping device (308) and the water distribution pipe (304) are arranged on the lower cavity of the filter;

water to be filtered enters the lower filter cavity through the water distribution pipe (303), the filtering layer (305) and water through holes (307) arranged on the supporting plate (306);

the water collected by the water seepage holes of the water seepage device (308) is input into the clean water tank (310) through a water diversion pipe (304).

12. The floating type integrated water treatment apparatus according to claim 1, wherein the cultivation unit (200), the filtering unit (300) and the aeration unit (400) form separate chambers inside the housing unit (100), respectively.

13. A water treatment system comprising a floating integrated water treatment facility according to any one of claims 1-12.

14. A water treatment method is characterized in that,

performing water treatment using the floating integrated water treatment facility according to any one of claims 1 to 12 or the water treatment system according to claim 13,

the water treatment method comprises the following steps:

carrying out aeration treatment on water to be treated;

filtering the water after the aeration treatment;

the water subjected to the aeration treatment or the filtration treatment is used for culturing aerobic microorganisms.

15. The water treatment method according to claim 14, wherein the aeration treatment, the filtration treatment and the culture of the aerobic microorganisms are all performed inside the water treatment apparatus floating in the water body.

16. The water treatment method as recited in claim 14, wherein the aeration treatment includes: raw water to be treated enters the upper cavity of the aeration unit through the water inlet grille, enters the water distribution cavity from the water inlet holes, is uniformly distributed into the water distribution grooves arranged on the two sides of the water distribution groove through the water distribution groove, and then falls to the lower cavity of the aeration unit through the water distribution port.

17. The water treatment method as recited in claim 14, wherein the filtering process comprises: pumping the water treated by the aeration unit from the aeration unit and inputting the water into a filter; in the filter, the water passes through the water distribution pipe, is percolated by the filter layer, then reaches the lower cavity of the filter through the water passing holes, is collected by the water permeating holes of the water seeping device and is output to the water distribution pipe, and then is output to the clean water tank.

18. A method of backwashing a floating integrated water treatment facility according to claim 11, comprising: water is pumped from the clean water tank and then enters the lower cavity of the filter through the water distribution pipe and the water seepage holes of the water seepage device; the water entering the upper cavity of the filter through the water holes arranged on the supporting plate drives the filter material of the filter layer to loosen or even turn over, so that the filter layer is cleaned, and the water after cleaning the dirt and the cleaned dirt are conveyed into the culture unit through the water distribution pipe and the blow-off pipe.