CN111675452A - Ecological water body purification system based on nano coupling material - Google Patents
Ecological water body purification system based on nano coupling material Download PDFInfo
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Abstract
The invention discloses a water body ecological purification system based on a nano coupling material, which comprises: the system comprises an exogenous interception unit, an endogenous control unit, an artificial purification unit and an ecological restoration unit; the external source intercepting unit comprises an ecological intercepting ditch and a slope protection ecological intercepting belt which are respectively positioned at two sides of the river channel; the ecological intercepting ditch comprises a plurality of intercepting ditches and intercepting pools communicated with the intercepting ditches, the bottom walls of the intercepting ditches are paved with gravels and water treatment slow-release agents, and the bottom walls of the intercepting pools are paved with porous ceramic particles; the slope protection ecological interception belt comprises a plurality of moisture absorption ecological bags stacked layer by layer along the slope surface, and moisture absorption materials are filled in the moisture absorption ecological bags; the artificial purification unit comprises an air supply device and an aeration device, wherein the air supply device comprises a fan and a pipeline; the aeration device comprises a membrane frame and a hollow fiber membrane component fixed on the membrane frame, wherein the membrane frame is of a hollow structure, and one end of the membrane frame is connected with a pipeline and used for conveying gas to the hollow fiber membrane component. The system of the invention constructs a complete ecological chain to enhance the self-purification capability of river water and stabilize the water purification effect.
Description
Technical Field
The invention relates to a water body ecological purification system based on a nano coupling material, and belongs to the technical field of environmental protection.
Background
With the rapid development of economic society and the continuous expansion of cities, the urban water environment pollution of China is increasingly serious, the water body in the urban river channel is mostly polluted by organic pollutants, nitrogen, phosphorus and other pollutants, the black and odorous water body is a phenomenon commonly existing in the urban river channels of China, and the treatment of the urban black and odorous river channel is an environmental problem to be mainly solved in a period of time in the future.
At present, many technologies for river purification have been developed, and river pollution treatment technologies can be classified into four major categories, i.e., physical methods, chemical methods, microorganism enhancement methods, and natural ecological restoration methods, according to different principles of treating polluted rivers. The physical method mainly aims at suspended matters in water by physical means, and pollutants are removed from the water body by using a separator, a filtering device or a large-scale sedimentation tank, a filtering tank and other methods to achieve the purpose of purification. The physical method has the characteristics of simple process equipment, simple and convenient operation and good treatment effect, but the method treats the symptoms and does not treat the root causes, and the problem of water pollution cannot be fundamentally solved. The chemical method is a process of transferring pollutants from an aqueous phase to another phase by complicated chemical action against inorganic or organic dissolved substances or colloidal substances in water to remove them, and mainly includes a coagulation-precipitation method and a chemical agent algae removal method, and some new technologies such as a photocatalytic technology for reducing COD and chromaticity have appeared in recent years. Although the chemical method is effective, the problem of water pollution cannot be thoroughly solved, and the addition of chemical agents causes high treatment cost, secondary pollution is easy to cause, and water ecology imbalance can be caused after long-term use. The microorganism can absorb or oxidize and degrade the pollutants in the water body, and the microorganism in the polluted water body can be rapidly proliferated by creating conditions suitable for the growth and propagation of the microorganism, so that a large amount of microorganisms with purification capacity are domesticated to degrade the organic pollutants in the water body, thereby reducing or finally eliminating the water environmental pollution. The method has good treatment effect, the repairing process can be naturally and in situ carried out, energy consumption or low energy consumption is not needed, the investment is low, the engineering investment is only 30 to 50 percent of that of a physical method and a chemical method, and most importantly, the self-cleaning capacity of the polluted water body can be gradually recovered. Due to the advantages, the microbial technology becomes a hotspot and a main technical means for research and development of the current river regulation. The natural ecological purification technology is to restore the self-purification capability of the water area by establishing a perfect ecological system (comprising microorganisms, plants and animals). The important premise of the application of natural ecological purification technology is that the pollution degree of water is not very high and the technology is suitable for natural rivers for the growth and propagation of aquatic organisms, so the technology is usually taken as a perfect restoration measure after the water quality of the water body is improved.
But the river pollution has the characteristics of multiple pollution ways, serious pollution degree, multiple pollutant types, large quantity, wide pollution area, wide distribution range, serious damage to a natural ecological system, more and more serious non-point source pollution and the like. A single river channel treatment mode cannot effectively guarantee that the river channel water environment is thoroughly restored.
Disclosure of Invention
In order to solve the technical problems, the invention provides a water body ecological purification system based on a nano coupling material, which is based on an MABR technology, integrates a nano coupling aeration system and a plurality of water treatment technologies to carry out water environment comprehensive treatment, finally constructs a river channel ecological system with a self-repairing function, and radically and thoroughly eradicates the problem of river water black and odor.
The invention provides a water body ecological purification system based on a nano coupling material, which comprises: the system comprises an exogenous interception unit, an endogenous control unit for reducing and controlling endogenous pollution, an artificial purification unit and an ecological restoration unit for restoring ecological functions of a river channel;
the external source intercepting unit comprises an ecological intercepting ditch and a slope protection ecological intercepting belt which are respectively positioned at two sides of the river channel; the ecological intercepting ditch comprises a plurality of repeating units, each repeating unit comprises an intercepting ditch and an intercepting pool communicated with the intercepting ditch, sand and a water treatment slow-release agent are paved on the bottom wall of the intercepting ditch, and porous ceramic particles are paved on the bottom wall of the intercepting pool; the slope protection ecological interception belt comprises a plurality of moisture absorption ecological bags stacked layer by layer along the slope surface, and moisture absorption materials are filled in the moisture absorption ecological bags;
the artificial purification unit comprises an air supply device and an aeration device, wherein the air supply device comprises a fan and a pipeline; the aeration device comprises a membrane frame and a hollow fiber membrane component fixed on the membrane frame, wherein the membrane frame is of a hollow structure, one end of the membrane frame is connected with the pipeline, and the membrane frame is used for conveying gas to the hollow fiber membrane component.
Further, the hollow fiber membrane component is a fiber tube reinforced hollow fiber composite biological membrane. The specific preparation method can be referred to patent CN 201910362462.0.
Furthermore, the membrane frame is arranged on a lifting steel bar frame, and the height of the lifting steel bar frame is regulated and controlled through an intelligent control terminal; the aeration device also comprises a dissolved oxygen sensor for detecting dissolved oxygen on one side of the hollow fiber membrane component; the intelligent control terminal is respectively in signal connection with the lifting reinforcing steel bar frame and the dissolved oxygen sensor.
Further, intelligent control terminal include industry thing and ally oneself with gateway, cloud platform and user terminal, cloud platform and liftable reinforcing bar frame, industry thing and ally oneself with gateway and user terminal signal connection, industry thing ally oneself with gateway and dissolved oxygen sensor signal connection, industry thing allies oneself with the gateway and will dissolve the data information acquisition of oxygen sensor and transmit the cloud platform, user terminal can inquire the data information of cloud platform and operate regulation and control liftable reinforcing bar frame to the cloud platform.
Further, the endogenous control unit comprises a dredging component and a bottom sediment remover adding device which are respectively used for dredging the river channel and adding the bottom sediment remover, the dredging component is a slurry pump, and the bottom sediment remover is microorganism and/or bioremediation enzyme. The invention adopts a slurry pump to pump out the bottom mud of the river bottom, the mud is bagged and water-controlled and is sent to the garbage for incineration, and the bottom mud remover can effectively decompose a large amount of pollutants such as nitrogen, phosphorus, heavy metals and the like accumulated in the bottom mud.
Furthermore, the porous ceramic particles comprise hollow ceramic balls, a plurality of through holes penetrating through the inner surfaces of the hollow ceramic balls are formed in the hollow ceramic balls, and titanium dioxide coating layers are arranged on the surfaces of the hollow ceramic balls.
Further, the particle size of the porous ceramic particles is 500-800 μm.
Furthermore, the intercepting ditch is in an inverted isosceles trapezoid shape and is distributed along the extending direction of the river channel.
Further, the moisture absorption material is porous ceramic particles and/or super-high moisture absorption fiber N-38.
Further, artifical purifying element still include bionical pasture and water and ceramic granule bag, fix the membrane frame on, the membrane frame be the design of U type, the one end of being connected with the pipeline is equipped with the switch, the other end is the encapsulated situation. A plurality of membrane frames can be arranged in the river channel, and the membrane frames can be controlled independently by setting a switch.
Further, the ecological restoration unit comprises emergent aquatic plants, submerged plants and aquatic animals; the emergent aquatic plants are planted along the ecological intercepting ditch and the slope protection ecological intercepting belt and are used for assisting in removing the exogenous pollutants.
Further, the emergent aquatic plants comprise one or more of calamus, loosestrife and yellow iris; the submerged plant comprises one or two of short tape grass and waterweed; the aquatic animal comprises one or more of corbicula fluminea, snail, shrimp and fish.
The invention has the beneficial effects that:
the method provided by the invention can be used for comprehensively, multi-layer and three-dimensionally treating the black and odorous problem of the river channel from four aspects of external source interception, internal source control, artificial purification, ecological restoration and the like, and finally, a river channel ecological system with a self-repairing function is constructed, so that the black and odorous problem of the river water is radically and thoroughly eradicated. The system carries out digestion treatment on exogenous pollution before the exogenous pollution is input into a river channel, and relieves the self-cleaning pressure of the river channel; the system removes the substrate sludge or reduces the content of organic matters in the sludge through a substrate sludge remover, and limits the release of substrate sludge nutrients; the system directly places the membrane component in the river, does not need civil engineering tank body construction, and can be flexibly adjusted according to water quality conditions; the system constructs a complete ecological chain to enhance the self-purification capacity of river water, stabilize the effect of purifying water quality and beautify the landscape of the river.
The ecological water body purification system based on the nano coupling material is a comprehensive water environment treatment system, and covers interception and primary purification of external pollutants, decomposition and removal of endogenous pollutants accumulated in a river channel for a long time, improvement of purification capacity of the river channel water body, rapid and effective reduction of water body pollution load under the condition of emergency and the like.
Drawings
FIG. 1 is a structural diagram of a water body ecological purification system based on a nano coupling material;
FIG. 2 is a schematic diagram of a water body ecological purification system based on nano coupling materials;
FIG. 3 is a schematic view of a single membrane rack;
FIG. 4 is a schematic structural view of an ecological intercepting ditch;
FIG. 5 is a schematic view of the structure of the ecological retaining belt of the revetment;
FIG. 6 is a schematic diagram of a plurality of membrane racks arranged in a river channel;
FIG. 7 is a schematic view of the structure of an aeration apparatus in example 2;
fig. 8 is a relational configuration diagram of the intelligent control terminal.
The reference numbers in the figures illustrate: 1. the ecological oxygen dissolving and retaining system comprises an external source retaining unit 11, an ecological intercepting ditch 111, a retaining ditch 112, a retaining pool 12, a slope protection ecological retaining belt 3, an artificial purification unit 31, an air supply device 311, a fan 312, a pipeline 32, an aeration device 321, a membrane frame 322, a hollow fiber membrane module 323, bionic aquatic weeds 324, a ceramic particle bag 325, a liftable reinforcement frame 326, an oxygen dissolving sensor 327, an industrial internet of things gateway 328, a cloud platform 329, a user terminal 4 and an ecological recovery unit.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Example 1:
as shown in fig. 1 to 8, the invention provides a water body ecological purification system based on nano coupling material, comprising: exogenous unit 1, endogenous control unit 2 (not shown in the figure, mainly operate through the manual work) for subduction control endogenous pollution, artifical clean unit 3 and the ecological recovery unit 4 that is used for the ecological function of river course to resume:
the external source intercepting unit 1 comprises an ecological intercepting ditch 11 and a slope protection ecological intercepting belt 12 which are respectively positioned at two sides of a river channel; the ecological intercepting ditch 11 is excavated and arranged at one side with smaller river bank gradient, and the slope protection ecological intercepting belt 12 is arranged at one side with larger river bank gradient;
the ecological intercepting ditch 11 comprises a plurality of repeating units, wherein each repeating unit comprises an intercepting ditch 111 and an intercepting pool 112 communicated with the intercepting ditch 111; the intercepting ditch 111 is in an inverted isosceles trapezoid shape and is distributed along the extending direction of the river channel, the upper bottom is 20cm, the lower bottom is 30cm, and the height is 30 cm; the interception tank is arranged at one side of the intercepting ditch 111 and is a rectangular tank body with the length of 30 multiplied by 40 cm; the bottom wall of the intercepting ditch is paved with sand stones of about 4cm and a water treatment slow release agent, and the water treatment slow release agent is a combination of an ammonia nitrogen degrading agent, a phosphorus controlling combined agent and a COD degrading agent; porous ceramic particles are laid on the bottom wall of the retention tank 112; the porous ceramic particles comprise hollow ceramic balls, wherein the hollow ceramic balls are provided with a plurality of through holes penetrating through the inner surfaces of the hollow ceramic balls, the surfaces of the hollow ceramic balls are provided with titanium dioxide coating layers, and the particle size of the porous ceramic particles is 500-800 mu m.
The slope protection ecological interception belt 12 comprises a plurality of moisture absorption ecological bags which are stacked layer by layer along the slope surface and locked with each other, and moisture absorption materials are filled in the moisture absorption ecological bags; the moisture absorption material is porous ceramic particles and/or super-high moisture absorption fiber N-38.
According to the invention, by arranging the ecological intercepting ditch and the slope protection ecological intercepting belt, a set of complete rain and sewage flow dividing or converging system is established, when water flows through, impurities and pollutants in water are filtered and adsorbed through the porous ceramic particles, and the pollutants are treated to a certain extent through the water treatment slow release agent, so that the input of the pollutants is reduced.
The endogenous control unit comprises a dredging component and a bottom sediment remover adding device (not shown in the figure, tools used when manual dredging is carried out or bottom sediment removers are added) for dredging the river channel and adding the bottom sediment removers, and the two methods can be used independently or in combination; the dredging component is a slurry pump, a river section with a slower water flow speed is selected, a blocking dam is used for blocking the water flow, then the slurry pump is used for pumping out bottom mud at the river bottom, and the bottom mud is bagged, controlled in water and sent to a waste incineration plant; the sediment eliminator can be directly used during inconvenient dredging construction, is a microorganism and/or a bioremediation enzyme, can effectively decompose a large amount of pollutants such as nitrogen, phosphorus, heavy metals and the like accumulated in the sediment, and avoids that the pollutants such as the nitrogen, the phosphorus, the heavy metals and the like accumulated in the sediment of a river channel are released into a human water body again under certain conditions, so that the water quality of an overlying water body is influenced, and secondary pollution is caused. The invention adopts a slurry pump to pump out the bottom mud of the river bottom, the mud is bagged and water-controlled and is sent to the garbage for incineration, and the bottom mud remover can effectively decompose a large amount of pollutants such as nitrogen, phosphorus, heavy metals and the like accumulated in the bottom mud.
The artificial purification unit 3 comprises an air supply device 31 and an aeration device 32, wherein the air supply device 31 comprises a fan 311 and a pipeline 312; the air supply device is selected at the center of construction as much as possible, so that the attenuation of air supply pressure caused by overlong pipelines is avoided; the position is wide as far as possible, the throwing-in installation of the equipment is convenient, the residential area is kept away, and the influence on the normal life of residents is avoided. The air supply device comprises two fans for alternately supplying air at intervals. The air supply pressure of the single fan is 0.1Mpa, the time is one hour, the interval is half an hour, and then the two fans alternately and circularly supply air.
The aeration device 32 comprises a membrane frame 321, a hollow fiber membrane component 322, a bionic aquatic weed 323 and a ceramic particle bag 324, wherein the hollow fiber membrane component 322 is fixed on the membrane frame 321, the membrane frame 321 is of a hollow structure and is designed in a U shape, the uneven partial pressure of each part of the membrane component caused by unilateral aeration is avoided, one end of the membrane frame 321 is connected with the pipeline 312 and is used for conveying gas to the hollow fiber membrane component 322, one end connected with the pipeline 312 is provided with a switch, and the other end of the membrane frame 321 is in a closed state. A plurality of membrane frames 321 can be arranged in the river channel, the membrane frames 321 can be independently controlled by setting a switch, the hollow fiber membrane modules are 20 x 160cm, the length of each membrane frame is selected according to the width of the river channel, the membrane modules are arranged at intervals of one meter, and bionic aquatic weeds and ceramic particle bags are bound between the membrane modules. The membrane frame is fixed on the welded steel bar frame and is arranged in a river to avoid the contact of the membrane module and the river bed; the membrane frames are spaced by 6m and connected with the main pipeline through a tee joint.
The hollow fiber membrane component is a fiber tube reinforced hollow fiber composite biological membrane, the specific preparation method can refer to patent CN201910362462.0, the principle is mainly through a nano coupling aeration biological membrane reaction technology, the characteristic advantage of larger specific surface area of the hollow fiber membrane is utilized, so that a relatively stable microenvironment is created on the membrane surface, and the attached growth of microorganisms in water is realized. In addition, the bionic aquatic weed also provides an excellent attachment place, so that the rapid gathering and mass propagation of microorganisms in the water body are promoted, and the polluted water body is rapidly and effectively purified under the action of the microorganisms.
The ecological restoration unit 4 comprises emergent aquatic plants, submerged plants and aquatic animals; emergent aquatic plants are planted along the ecological intercepting ditch and the slope protection ecological intercepting zone and are used for assisting in removing exogenous pollutants, and the emergent aquatic plants comprise one or more of calamus, loosestrife and yellow iris. After the equipment operates for three weeks, submerged plants and aquatic animals are put into the water body, wherein the submerged plants comprise one or two of short eel grass and waterweed, and the aquatic animals comprise one or more of corbicula fluminea, snail, shrimp and fish.
Example 2:
unlike the embodiment 1 in which the membrane frame is fixed to a welded steel bar frame and placed in a river, the embodiment 2 in which the membrane frame is fixed to a liftable steel bar frame 325 whose support rod can be lifted and then placed in a river, and a dissolved oxygen sensor 326 for detecting dissolved oxygen around the hollow fiber membrane module is provided at one side of the hollow fiber membrane module; the four support rods of the lifting steel bar frame 325 are electric telescopic rods, the height of the electric telescopic rods is adjusted through the intelligent control terminal, and the electric telescopic rods drive the telescopic rods to perform telescopic motion through motors (waterproof motors);
the intelligent control terminal comprises an industrial internet of things gateway 327, a cloud platform 328 and a user terminal 329, the cloud platform 328 is in signal connection with a liftable reinforcing steel bar frame 325 (wherein the signal connection of the liftable reinforcing steel bar frame refers to signal connection with a motor), the industrial internet of things gateway 327 is in signal connection with a dissolved oxygen sensor 326, the industrial internet of things gateway 327 collects and transmits data information of the dissolved oxygen sensor 326 to the cloud platform 328, and a user inquires the data information through the user terminal 329 and operates the data information to adjust the height of the hollow fiber membrane module.
The scheme of the embodiment mainly solves the problems that: at the initial stage of putting the membrane frame, the hollow fiber membrane component is less in attached biological membrane, higher in aeration degree and suitable for being placed at a deeper position (mainly because pollutants are deposited at the deeper position, the dissolved oxygen content at the deeper position is lower, and the microbial treatment is slower), so that the treatment speed and the treatment effect are increased; when the attached biological membrane is thicker and thicker, the water pressure in the deep water area is higher, the aeration is slow, the dissolved oxygen is insufficient, the microbial treatment effect is reduced, the height of the membrane frame from the water surface is adjusted at the moment, the aeration effect can be effectively enhanced, and the treatment effect of the hollow fiber membrane component is further enhanced.
Example 3: ecological management project for Changan Zhengxi Shigang river channel in Haining City
The west Shihong river channel has a total length of 360m, a width of 9-10 m, a length of 360m, a depth of 1.1m-1.6m, and is not subjected to dredging engineering, and is reported to be inferior five types of water according to the detection report of the water quality of the river channel, wherein the conditions of ammonia nitrogen, total instantaneous and total nitrogen are serious. The two sides of the river channel are provided with a farm and a fruit forest, wherein the farm discharges a large amount of sewage without isolation, and the non-point source pollution of the river channel is uncontrollable in rainy days. The whole river channel has no aquatic plant distribution, and the water body turbidity is higher.
Aiming at the situation of a river channel in a project, a water body ecological purification system based on a nano coupling material is adopted for treatment.
1. Dredging the whole river reach by using a blocking dam and a slurry pump, and conveying the cleaned sludge to a waste incineration plant; and adding a bottom mud remover to perform more detailed treatment on the residual mud.
2. Selecting a site, installing a fan machine room, and arranging an air supply pipeline;
3. installing membrane frames, wherein the length of each membrane frame is 8m, the width of each membrane frame is 1.6m, one group of membrane frames are provided with 6 hollow fiber membrane assemblies, the bionic aquatic weeds and the ceramic particle bags are uniformly dispersed, and the sewage is connected with a main pipeline; the membrane frame is fixed on the welded steel bar frame, the hollow fiber membrane component and the water surface are kept in parallel (water resistance can be reduced), and the height from the water surface is 20-30 cm (aeration cannot be performed due to water pressure when the membrane frame is too deep);
4. constructing an ecological intercepting ditch for a fruit forest and a near-road river bank, and spreading porous ceramic particles and a water treatment slow-release agent;
5. for the pigeon house river bank with larger gradient, the high moisture absorption ecological bags are piled up to form a firm and stable slope protection ecological interception belt.
6. Planting emergent aquatic plants on the ecological intercepting ditches and the slope protection ecological detention zones, operating the artificial purification system for 3 weeks, enabling water quality detection to reach standards, and putting submerged plants and aquatic animals into a water body to construct a complete ecological chain.
240 membrane assemblies are used in the river, 40 membrane frames are used, the ecological intercepting ditch is built by about 220m, and the ecological detention zone is about 130 m. The water quality comparison condition is shown in table 1 after the whole system is built and operated for one month.
Through the treatment of the ecological water body purification system based on the nano coupling material, the west rock harbor water is promoted to four types of water from the inferior five types of water, and except the COD index, other indexes reach three types of water indexes and above.
Example 4: ecological restoration project for upstream main channel dragon pond branch channel river channel in three mountainous areas in turnip lake city
The total length of the channel of the branch channel of the dragon pond is about 600 meters, the width of the channel is about 5 to 6 meters, and the water depth is about 2 meters. The west surface of the branch channel of the dragon pond is a factory gathering area, the east side forest is dense, pollutants carried by surface runoff and water supplement are washed by rainwater to scour the ground at two sides, surface pollutants and the like enter a river along with the rainwater to become a pollution source of the river channel, the river channel is not subjected to dredging engineering, and the river channel is classified into five types of water according to the detection report of the water quality of the river channel, wherein the conditions of ammonia nitrogen, total transient and total nitrogen are serious.
Aiming at the situation of the river channel in the project and the experimental requirements, the river channel is partitioned into two sections, wherein the length of one section is about 300 meters, the first section adopts the water body ecological purification system in the embodiment 1 to treat, and the second section adopts the water body ecological purification system in the embodiment 2 to treat. When carrying out endogenous control unit operation earlier (whole river reach desilting promptly and throw the sediment remover process), do not carry out the interval, mainly distinguish to the installation membrane frame:
1. dredging the whole river reach by using a blocking dam and a slurry pump, and conveying the cleaned sludge to a waste incineration plant; and adding a bottom mud remover to perform more detailed treatment on the residual mud.
2. Selecting a site, installing a fan machine room, and arranging an air supply pipeline;
3. a first stage: installing membrane frames, wherein the length of each membrane frame is 4m, the width of each membrane frame is 1.6m, 4 hollow fiber membrane modules are installed on one group of membrane frames, the bionic aquatic weeds and the ceramic particle bags are uniformly distributed, the sewage is connected with a main pipeline and is fixed on a welded steel bar frame to be placed in a first section of river, and the distance between each membrane module and the river surface is 20-30 centimeters;
and a second stage: installing membrane frames, wherein the length of each membrane frame is 4m, the width of each membrane frame is 1.6m, one group of membrane frames are provided with 4 hollow fiber membrane assemblies, the bionic aquatic weeds and the ceramic particle bags are uniformly distributed, the sewage is connected with a main pipeline, the membrane frames are fixedly installed on a lifting steel bar frame and are placed in a second section of river, the distance between the initial membrane assembly and the river surface is 60-80 centimeters, the dissolved oxygen on one side of each hollow fiber membrane is less than 5mg/L, and the height of each membrane frame is properly adjusted upwards;
4. building an ecological intercepting ditch for a forest and a river bank, and spreading porous ceramic particles and a water treatment slow-release agent;
5. for a sloping river bank, the high-moisture-absorption ecological bags are piled up to form a firm and stable slope protection ecological interception belt;
6. planting emergent aquatic plants on the ecological intercepting ditches and the slope protection ecological detention zones, operating the artificial purification system for 3 weeks, enabling water quality detection to reach standards, and putting submerged plants and aquatic animals into a water body to construct a complete ecological chain.
The river channel uses 280 membrane components and 70 membrane frames (35 membrane frames in the first section and the second section respectively), an ecological intercepting ditch is built by about 500m, and an ecological detention zone is about 100 m. The water quality comparison condition is shown in table 1 after the whole system is built and operated for one month.
TABLE 1
Through the comparison of the first section and the second section, the depth of the membrane frame can be adjusted by adopting the lifting steel bar frame, so that the treatment effect can be enhanced.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. A water body ecological purification system based on nanometer coupling materials is characterized by comprising: the system comprises an exogenous interception unit, an endogenous control unit for reducing and controlling endogenous pollution, an artificial purification unit and an ecological restoration unit for restoring ecological functions of a river channel;
the external source intercepting unit comprises an ecological intercepting ditch and a slope protection ecological intercepting belt which are respectively positioned at two sides of the river channel; the ecological intercepting ditch comprises a plurality of repeating units, each repeating unit comprises an intercepting ditch and an intercepting pool communicated with the intercepting ditch, sand and a water treatment slow-release agent are paved on the bottom wall of the intercepting ditch, and porous ceramic particles are paved on the bottom wall of the intercepting pool; the slope protection ecological interception belt comprises a plurality of moisture absorption ecological bags stacked layer by layer along the slope surface, and moisture absorption materials are filled in the moisture absorption ecological bags;
the artificial purification unit comprises an air supply device and an aeration device, wherein the air supply device comprises a fan and a pipeline; the aeration device comprises a membrane frame and a hollow fiber membrane component fixed on the membrane frame, wherein the membrane frame is of a hollow structure, one end of the membrane frame is connected with the pipeline, and the membrane frame is used for conveying gas to the hollow fiber membrane component.
2. The ecological water body purification system based on the nano-coupling material as claimed in claim 1, wherein the hollow fiber membrane module is a fiber tube reinforced hollow fiber composite biological membrane.
3. The ecological water purification system based on the nano-coupling material as claimed in claim 1, wherein the membrane frame is arranged on a lifting steel bar frame, and the height of the lifting steel bar frame is adjusted and controlled through an intelligent control terminal; the aeration device also comprises a dissolved oxygen sensor for detecting dissolved oxygen on one side of the hollow fiber membrane component; the intelligent control terminal is respectively in signal connection with the lifting reinforcing steel bar frame and the dissolved oxygen sensor.
4. The ecological water body purification system based on the nano-coupling material as claimed in claim 3, wherein the intelligent control terminal comprises an industrial Internet of things gateway, a cloud platform and a user terminal, the cloud platform is in signal connection with the liftable steel bar frame, the industrial Internet of things gateway and the user terminal, the industrial Internet of things gateway is in signal connection with the dissolved oxygen sensor, the industrial Internet of things gateway collects and transmits data information of the dissolved oxygen sensor to the cloud platform, and the user terminal can query the data information of the cloud platform and operate and regulate the liftable steel bar frame on the cloud platform.
5. The system for ecologically purifying water based on nanometer coupling materials as claimed in claim 1, wherein said endogenous control unit comprises a dredging component and a sediment removing agent adding device for dredging a river channel and adding sediment removing agent respectively, said dredging component is a slurry pump, and said sediment removing agent is microorganism and/or bioremediation enzyme.
6. The ecological water body purification system based on the nano-coupling material as claimed in claim 1, wherein the porous ceramic particles comprise hollow ceramic balls, the hollow ceramic balls are provided with a plurality of through holes penetrating through the inner surfaces of the hollow ceramic balls, and the surfaces of the hollow ceramic balls are provided with titanium dioxide coating layers.
7. The ecological water purifying system based on nanometer coupling materials as claimed in claim 1, wherein the intercepting ditches are in the shape of an inverted isosceles trapezoid and are distributed along the extending direction of the river channel.
8. The ecological water purifying system based on nanometer coupling material as claimed in claim 1, wherein the hygroscopic material is porous ceramic particles and/or super high hygroscopic fiber N-38.
9. The water body ecological purification system based on the nano coupling material as claimed in claim 1, wherein the artificial purification unit further comprises a bionic aquatic plant and a ceramic particle bag, the bionic aquatic plant and the ceramic particle bag are fixed on the membrane frame, the membrane frame is in a U-shaped design, one end connected with the pipeline is provided with a switch, and the other end is in a closed state.
10. The ecological water body purification system based on nanometer coupling materials as claimed in claim 1, wherein the ecological restoration unit comprises emergent aquatic plants, submerged plants and aquatic animals; the emergent aquatic plants are planted along the ecological intercepting ditch and the slope protection ecological intercepting belt and are used for assisting in removing the exogenous pollutants.
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| CN201911236642.0A CN110937756A (en) | 2019-12-05 | 2019-12-05 | Water body ecological purification system and method based on nano coupling material |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104761047A (en) * | 2014-01-07 | 2015-07-08 | 天津海之凰科技有限公司 | Water plant EHBR river water purifying device system and method thereof |
| CN107176694A (en) * | 2017-06-26 | 2017-09-19 | 中国市政工程中南设计研究总院有限公司 | Gush black smelly method in a kind of comprehensive regulation river |
| CN109133519A (en) * | 2018-09-20 | 2019-01-04 | 河南省科学院地理研究所 | A kind of river bottom mud ecological treatment method |
| CN110143737A (en) * | 2019-05-24 | 2019-08-20 | 河南格恩阳光环境科技有限公司 | A kind of river Ecology original position dredging restorative procedure |
| CN110937756A (en) * | 2019-12-05 | 2020-03-31 | 无锡碧泓达环境科技有限公司 | Water body ecological purification system and method based on nano coupling material |
| CN210825655U (en) * | 2019-09-17 | 2020-06-23 | 江阴市庞达橡塑有限公司 | Aeration device in water treatment equipment |
-
2019
- 2019-12-05 CN CN201911236642.0A patent/CN110937756A/en not_active Withdrawn
-
2020
- 2020-07-28 CN CN202010738138.7A patent/CN111675452B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104761047A (en) * | 2014-01-07 | 2015-07-08 | 天津海之凰科技有限公司 | Water plant EHBR river water purifying device system and method thereof |
| CN107176694A (en) * | 2017-06-26 | 2017-09-19 | 中国市政工程中南设计研究总院有限公司 | Gush black smelly method in a kind of comprehensive regulation river |
| CN109133519A (en) * | 2018-09-20 | 2019-01-04 | 河南省科学院地理研究所 | A kind of river bottom mud ecological treatment method |
| CN110143737A (en) * | 2019-05-24 | 2019-08-20 | 河南格恩阳光环境科技有限公司 | A kind of river Ecology original position dredging restorative procedure |
| CN210825655U (en) * | 2019-09-17 | 2020-06-23 | 江阴市庞达橡塑有限公司 | Aeration device in water treatment equipment |
| CN110937756A (en) * | 2019-12-05 | 2020-03-31 | 无锡碧泓达环境科技有限公司 | Water body ecological purification system and method based on nano coupling material |
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| CN110937756A (en) | 2020-03-31 |
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