A method for remediating and treating black and odorous water bodies

Abstract

This invention discloses a method for the remediation and treatment of black and odorous water bodies in the field of water treatment, comprising the following steps: S1, finding a suitable location; S2, flushing the riverbed; S3, removing debris; In S2, outside air is discharged to both sides of the aeration pipe through the aeration pipe, and the air bubbles push the bottom sediment at the center of the riverbed to both sides; then, the water in the center of the riverbed is reversed by the reverse propulsion mechanism on the hull, and the resulting reverse current moves the floating ball on the hull, which is used to release microbial inoculants, upstream of the river; the microorganisms in the floating ball are mixed with the water and the bottom sediment tumbling with the gas; the contact area between the water and the air is increased, the dissolved oxygen in the water is increased, and the microorganisms are more likely to mix with the bottom sediment and the water, which facilitates the degradation of black and odorous water by the microorganisms, thereby improving the treatment speed.

Description

Technical Field

[0001] This invention belongs to the field of water treatment, specifically a method for the remediation and treatment of black and odorous water bodies. Background Technology

[0002] Black and odorous water bodies refer to water bodies that have an unpleasant color and / or emit an unpleasant odor. Black and odorous water bodies directly affect public health and daily life, therefore, it is necessary to remediate and treat them.

[0003] For example, Chinese patent publication number CN112551823B discloses a method for ecological restoration of polluted rivers, including the following steps: S10 aeration; S20 microbial degradation; S30 collection of surface debris; S40 ecological restoration; and S50 installation of fountains. This method, after sequentially performing aeration and microbial degradation, increases the contact area between the river and the atmosphere by collecting surface debris, which helps dissolve more oxygen in the water and prevents the growth of bacteria and viruses from the decay of debris, thus ensuring the restoration of a healthy ecological environment and providing continuous self-purification capabilities. Furthermore, the installation of fountains promotes water flow, making the water increasingly clear, achieving a virtuous cycle, and enhancing the river's landscape.

[0004] However, during the treatment process, the bottom sediment at the bottom of the river still accumulates in the river channel. Due to the slow degradation rate of microorganisms, it is not easy for microorganisms to enter the bottom sediment for degradation. After a period of treatment, the pollutants in the bottom sediment still undergo a new round of anaerobic gas production in the water body, and the black and smelly substances return from the bottom sediment to the water body, and the water body then re-produces the black and smelly problem. Summary of the Invention

[0005] To address the problem that microorganisms are not easily able to enter the sediment for degradation, the purpose of this invention is to provide a method for the remediation and treatment of black and odorous water bodies that is fast and effective.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows:

[0007] A method for remediating and treating black and odorous water bodies includes the following steps: S1. Finding a suitable location: Artificially select a river channel with stable terrain and flowing water, and artificially arrange aeration pipes and boats in sequence along the direction of water flow in the river channel, with the aeration pipes and boats located in the center of the river channel.

[0008] S2. River scouring: Outside air is introduced into the water body through aeration pipes, and the outside air is discharged to both sides of the aeration pipes; the reverse propulsion mechanism on the hull causes the water in the center of the river to flow backward, and the resulting backward flow moves the floating balls on the hull used to release microbial inoculants to the upstream of the river.

[0009] S3. Debris Retrieval: The generated countercurrent propels floating objects on the river surface toward both sides of the river channel, and the floating objects on both sides of the river channel are retrieved manually.

[0010] The above solution achieved the following beneficial effects:

[0011] Outside air is discharged to both sides of the aeration pipe, increasing the contact area between air and water, which facilitates the dissolution of oxygen in the air into the water, increases the oxygen content in the water, and brings the bottom sediment in the center of the river to the surface with the water flow, forming an upward turbidity flow.

[0012] At the same time, the countercurrent generated by the reverse propulsion mechanism pushes the floating ball together, allowing the microorganisms in the floating ball to come into contact with the water and the upward turbid current. Through the reproduction of the microorganisms in the water, the reproduction of harmful bacteria is inhibited, the inorganic matter and nitrogen and ammonia content in the water are decomposed, and the dissolved oxygen content in the water is increased, which is conducive to the normal development and growth of algae, aquatic plants and other aquatic organisms in the water, thereby achieving the treatment of the water body.

[0013] The aeration pipes flush away the bottom sediment in the center of the riverbed. As the sediment settles, microorganisms enter the accumulated sediment along with the sediment, facilitating the degradation of the sediment by the microorganisms. This reduces the pollution of the water body by external sources in the sediment and reduces secondary pollution caused by the sediment after water replacement, thereby improving water quality.

[0014] The reverse flow generated by the reverse propulsion mechanism moves floating materials on the water surface to both sides of the river channel, making it easier to recover the floating materials.

[0015] Furthermore, in S1, the reverse pushing mechanism includes a storage tank for holding the floating ball, a discharge pipe arranged at an incline is connected to one side of the storage tank, and a partition for closing the discharge pipe is slidably fitted on the storage tank. The partition is L-shaped, and one end of the partition passes through one side of the storage tank and is slidably fitted with the storage tank.

[0016] The storage tank is fixedly connected to the hull. A drive unit is located below the storage tank. The output shaft of the drive unit passes through the bottom of the hull and rotates with the hull. Fan blades are coaxially connected to the output shaft of the drive unit.

[0017] Beneficial effects: The storage tank provides a space for storing the floating balls. When the reverse propulsion mechanism is used manually, the operator first starts the drive to rotate the fan blades, and then removes the baffle on the discharge pipe so that the reverse flow generated by the fan blades pushes the floating balls to mix with the water.

[0018] Furthermore, the end of the drive unit's output shaft furthest from the fan blades is higher than the end of the drive unit's output shaft closest to the fan blades.

[0019] Beneficial effects: The obliquely arranged drive components and fan blades generate a downward-sloping water flow that washes the riverbed, reducing sediment buildup in the center of the river channel and facilitating the mixing of microorganisms in the floating ball with the sediment and water.

[0020] Furthermore, in S2, crossbars are provided on both sides of the hull, and filter screens for filtering floating objects and bottom sediment in the water are fixedly connected to the crossbars. A counterweight bar is fixedly connected to the bottom of the filter screen, and the filter screen is inclinedly arranged on the river channel through the counterweight bar.

[0021] The crossbar is located above the water surface of the river channel. A net is fixedly connected to the crossbar, and sliding blocks are fixedly connected to both sides of the net. A sliding groove is fixedly connected to the crossbar, and the sliding groove and the sliding block slide in a sliding fit. A pull rope is fixedly connected to the sliding block.

[0022] Beneficial effects: The filter screen facilitates the filtration and recycling of large materials in the water and bottom sediment, while the scoop net facilitates the retrieval of floating garbage and floating balls on the water surface, and makes it easy to reuse the floating balls.

[0023] Furthermore, in S2, the floating ball includes a float, the bottom of which is threadedly connected to a shell, a placement cavity is opened inside the shell, a filling block is fixedly connected inside the placement cavity, and the placement cavity is connected to a through hole.

[0024] Beneficial effects: The float keeps the floating ball suspended on the water surface by the float block, making it easy to retrieve the floating ball later. The weight of the filler block and the outer shell keeps the filler block immersed in the water, making it easy for the filler block to dissolve in the water.

[0025] Furthermore, the filling block is provided with a microbial block, a first isolation layer, a microbial block, a second isolation layer, and a microbial block in sequence from the outside to the inside, and the thickness of the first isolation layer and the second isolation layer decreases sequentially.

[0026] Beneficial effects: The first and second isolation layers facilitate the mixing of microbial strains in the inoculum block with the water.

[0027] Furthermore, the microbial species in the bacterial block include facultative anaerobic bacteria and nitrogen-ammonia degrading bacteria.

[0028] Beneficial effects: By competing with harmful bacteria in the water, facultative anaerobic bacteria can reduce the content of harmful bacteria in the water; and by decomposing nitrogen and ammonia in the water through nitrogen-degrading bacteria, water quality can be improved.

[0029] Furthermore, in S3, after the floating debris is retrieved, aquatic plant seeds are manually sown on the filter screen so that the seeds adhere to the filter screen.

[0030] Beneficial effects: As the mesh of the filter screen becomes clogged, sediment gradually accumulates on the screen, which allows seeds to attach to the screen to grow and purify the water. It also facilitates the absorption of harmful substances from the sediment during seed growth. Attached Figure Description

[0031] Figure 1 This is a top view of the method for remediating and treating black and odorous water bodies according to an embodiment of the present invention.

[0032] Figure 2 This is a side view of the method for remediating and treating black and odorous water bodies according to an embodiment of the present invention.

[0033] Figure 3 for Figure 1 A cross-sectional view of a floating sphere.

[0034] Figure 4 for Figure 1 A magnified view of part A.

[0035] Figure 5 for Figure 2 A magnified view of part B. Detailed Implementation

[0036] The following detailed description illustrates the specific implementation method:

[0037] The reference numerals in the accompanying drawings include: hull 1, storage tank 11, discharge pipe 12, partition 13, crossbar 2, filter screen 21, counterweight bar 22, net 23, chute 24, sliding block 25, pull rope 26, aeration pipe 3, air pump 31, fixing rope 32, floating ball 4, float 41, outer shell 42, inoculum block 43, first isolation layer 44, second isolation layer 45, through hole 46, motor 5, fan blade 51.

[0038] The basic implementation examples are as follows: Figures 1 to 5 The diagram illustrates a method for remediating and treating black and odorous water bodies, comprising the following steps: S1. Finding a suitable location: A river channel with stable terrain and a certain height difference between its upper and lower ends is artificially selected. When there are no obstacles on the river surface, the water flow speed can push floating debris from upstream to downstream. Aeration pipes 3 and a boat hull 1 are arranged sequentially along the water flow direction within the river channel, with the aeration pipes 3 and boat hull 1 located at the center of the river channel. Simultaneously, the aeration pipes 3 submerged in the water are secured to the floating boat hull 1 on the river channel via fixing ropes 32. The river's own fluidity facilitates subsequent manual collection of floating debris and also facilitates the movement of the stirred-up sediment downstream.

[0039] S2. Riverbed scouring: Aeration pipe 3 is connected to air pump 31 via an air pipe. Air pump 31 is located on the riverbank. When the water is in an anoxic state, the rate of organic matter degradation and ammonia oxidation by microorganisms in the water is significantly reduced, and the self-purification capacity of the water body is greatly reduced. Outside air is introduced into the water body through aeration pipe 3, causing outside air to be discharged to both sides of aeration pipe 3, increasing the contact area between air and water, facilitating the dissolution of oxygen in the air into the water, increasing the oxygen content in the water, and bringing the bottom sediment in the center of the river body to the water surface with the water flow, forming an upward turbidity flow; at the same time; The reverse propulsion mechanism on the hull 1 causes the water in the center of the river to flow backwards. The resulting backward flow moves the floating ball 4, which is used to release microbial inoculants, upstream of the river. This allows the microbial inoculants in the floating ball 4 to come into contact with the water and the upward turbidity. Through the reproduction of the microbial inoculants in the water, the reproduction of harmful bacteria is inhibited, the inorganic matter and nitrogen and ammonia content in the water are decomposed, and the dissolved oxygen content in the water is increased. This facilitates the normal development and growth of algae, aquatic plants and other aquatic organisms in the water, thereby achieving the treatment of the water body.

[0040] The bottom sediment at the center of the riverbed is flushed away through aeration pipe 3. When the sediment settles, microbial strains enter the accumulated sediment along with the sediment, which facilitates the degradation of the sediment by the microbial strains. This reduces the pollution of the water body by external pollution sources in the sediment and reduces the secondary pollution caused by the sediment after the water body is replaced, thereby improving the water quality.

[0041] S3. Debris Removal: The reverse current generated pushes floating debris on the river surface to both sides of the river channel, allowing for manual removal of the debris. The reverse current generated by the reverse propulsion mechanism moves floating materials on the water surface to both sides of the river channel, facilitating the cleaning and recycling of floating materials and reducing pollutants in the water.

[0042] Example 2

[0043] The difference from the above embodiments is that, in S1, the reverse pushing mechanism includes a storage tank 11 for placing the floating ball 4. A discharge pipe 12 is connected to one side of the storage tank 11. The end of the discharge pipe 12 near the storage tank 11 is higher than the end of the discharge pipe 12 away from the storage tank 11. A partition 13 for closing the discharge pipe 12 is slidably fitted on the storage tank 11. The partition 13 is L-shaped and one end of the partition 13 passes through one side of the storage tank 11 and is slidably fitted with the storage tank 11.

[0044] Below the storage tank 11 is a drive unit, which is a common motor 5. The output shaft of the drive unit passes through the bottom of the hull 1 and rotates with the hull 1. The output shaft of the drive unit is coaxially welded with a fan blade 51. Several support frames are welded on the hull 1. The storage tank 11 and the drive unit are fixedly connected to the hull 1 through the support frames.

[0045] The specific implementation process is as follows: The storage tank 11 provides a space for storing the floating balls 4. When the reverse push mechanism is used manually, the manual first starts the drive component to drive the fan blade 51 to rotate. Then the manual removes the partition 13 on the discharge pipe 12. The floating balls 4 in the storage tank 11 are discharged into the water body through the discharge pipe 12, so that the reverse flow generated by the fan blade 51 pushes the floating balls 4 to mix with the water body.

[0046] Example 3

[0047] The difference from the above embodiment is that the end of the output shaft of the drive member away from the fan blade 51 is higher than the end of the output shaft of the drive member close to the fan blade 51.

[0048] The specific implementation process is as follows: The obliquely arranged drive component and fan blade 51 cause the fan blade 51 to generate a downward oblique water flow to flush the riverbed, reduce the accumulation of bottom sediment in the center of the river channel, and facilitate the mixing of microorganisms in the floating ball 4 with the bottom sediment and water.

[0049] Example 4

[0050] The difference from the above embodiment is that in S2, there are crossbars 2 on both sides of the hull 1. A filter screen 21 for filtering floating objects and bottom sediment in the water is attached to the crossbars 2. A counterweight rod 22 is attached to the bottom of the filter screen 21. The side of the filter screen 21 near the crossbar 2 is higher than the side of the filter screen 21 near the counterweight rod 22. The counterweight rod 22 is located upstream of the water flow direction in the river channel with the crossbar 2 as the reference point.

[0051] The crossbar 2 is located above the water surface of the river channel. A net 23 is attached to the crossbar 2. The upper side of the opening of the net 23 is attached to the crossbar 2. Several pressure blocks are attached to the lower side of the opening of the net 23. Sliding blocks 25 are attached to both sides of the net 23. A sliding groove 24 is integrally formed on the crossbar 2. The sliding groove 24 slides with the sliding block 25. A pull rope 26 is welded to the sliding block 25.

[0052] The specific implementation process is as follows: The counterweight is manually submerged into the water to make the filter screen 21 form an inclined surface. The filter screen 21 facilitates the filtration and recycling of large materials in the water and bottom sediment. The scoop net 23 facilitates the retrieval of floating garbage and floating balls 4 on the water surface, making it easy to reuse the floating balls 4. When using the scoop net 23, the sliding block 25 is moved on the chute 24 by pulling the rope 26, so that the opening of the scoop net 23 opens or closes, which facilitates the recycling of floating garbage and floating balls 4 inside the scoop net 23.

[0053] Example 5

[0054] The difference from the above embodiment is that in S2, the floating ball 4 includes a float 41, the bottom of the float 41 is threadedly connected to a shell 42, the shell 42 has a placement cavity, a filling block is bonded inside the placement cavity, and the placement cavity is connected to a through hole 46.

[0055] The specific implementation process is as follows: When the floating ball 4 falls into the water, the floating ball 4 is suspended on the water surface by the float 41, which makes it easy to retrieve the floating ball 4 later. Due to the weight of the filling block and the outer shell 42, the filling block is immersed in the water. The through hole 46 makes it easy for external water to come into contact with the filling block and dissolve in the water.

[0056] Example 6

[0057] The difference from the above embodiment is that the filling block is provided with a microbial block 43, a first isolation layer 44, a microbial block 43, a second isolation layer 45 and a microbial block 43 in sequence from the outside to the inside, and the thickness of the first isolation layer 44 and the second isolation layer 45 decreases in sequence.

[0058] The specific implementation process is as follows: The first isolation layer 44 and the second isolation layer 45 include, but are not limited to, sucrose. The first isolation layer 44 and the second isolation layer 45 divide the inoculum block 43 into several chambers. The different dissolution times of the first isolation layer 44 and the second isolation layer 45 of different thicknesses in water can prolong the release time of the inoculum block 43 in water, which facilitates the mixing of the microbial strains in the inoculum block 43 with the water.

[0059] Example 7

[0060] The difference from the above embodiments is that the microbial strains in the bacterial block 43 include facultative anaerobic bacteria and nitrogen-ammonia degrading bacteria, such as Bacillus, lactic acid bacteria, yeast, nitrifying bacteria, flocculants, and cyanobacteria-inhibiting bacteria, etc.

[0061] The specific implementation process is as follows: Facultative anaerobic bacteria compete with harmful bacteria in the water, thereby reducing the content of harmful bacteria in the water; nitrogen-ammonia degrading bacteria decompose the nitrogen and ammonia content in the water, which facilitates the normal development and growth of algae, aquatic plants and other aquatic organisms in the water, thereby increasing the dissolved oxygen content in the water and improving water quality.

[0062] Example 8

[0063] The difference from the above embodiment is that in S3, after the floating objects are retrieved, submerged algae seeds (aquatic plant seeds), such as goldfish algae, hydrangea and myriophyllum, are manually sown on the filter screen 21 so that the submerged algae seeds adhere to the filter screen 21.

[0064] The specific implementation process is as follows: After filtering large objects in the bottom sediment and floating objects in the water through the filter screen 21, the bottom sediment will gradually accumulate on the filter screen 21 due to the clogging of the mesh, forming a sloping soil layer that is easy for sunlight to penetrate. This allows seeds to attach to the filter screen 21 to grow and purify the water, and also facilitates the absorption of harmful substances in the bottom sediment during seed growth, reducing the harm of the bottom sediment to the water.

[0065] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific structures and / or characteristics in the solutions are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A method for remediating and treating black and odorous water bodies, characterized in that: The process includes the following steps: S1. Find a suitable location: Select a river channel with stable terrain and flowing water. Arrange aeration pipes and boats in sequence along the direction of water flow in the river channel. The aeration pipes and boats are located in the center of the river channel. S2. River scouring: Outside air is introduced into the water body through aeration pipes, and the outside air is discharged to both sides of the aeration pipes; the reverse propulsion mechanism on the hull causes the water in the center of the river to flow backward, and the resulting backward flow moves the floating balls on the hull used to release microbial inoculants to the upstream of the river. The reverse propulsion mechanism includes a storage tank for holding floating balls. One side of the storage tank is connected to an inclined discharge pipe. A partition for closing the discharge pipe is slidably fitted on the storage tank. The partition is L-shaped, with one end penetrating one side of the storage tank and slidably fitted thereto. The storage tank is fixedly connected to the hull. A drive unit is located below the storage tank. The output shaft of the drive unit penetrates the bottom of the hull and rotates with the hull. A fan blade is coaxially connected to the output shaft of the drive unit. The hull has crossbars on both sides, and filter screens for filtering floating objects and bottom sediment are fixedly connected to the crossbars. A counterweight is fixedly connected to the bottom of the filter screen, and the filter screen is inclined on the river channel through the counterweight. The crossbars are located above the water surface of the river channel, and a net is fixedly connected to the crossbars. Sliding blocks are fixedly connected to both sides of the net, and a sliding groove is fixedly connected to the crossbars. The sliding groove and the sliding block slide in a sliding fit. A pull rope is fixedly connected to the sliding block. The floating ball includes a float, the bottom of which is threaded to a shell, a placement cavity is opened inside the shell, a filling block is fixedly connected inside the placement cavity, and the placement cavity is connected to a through hole. The filling block is provided with a microbial block, a first isolation layer, a microbial block, a second isolation layer, and a microbial block in sequence from the outside to the inside, and the thickness of the first isolation layer and the second isolation layer decreases in sequence. S3. Debris Retrieval: The generated countercurrent propels floating objects on the river surface toward both sides of the river channel, and the floating objects on both sides of the river channel are retrieved manually.

2. The method for remediating and treating black and odorous water bodies according to claim 1, characterized in that: The end of the drive unit's output shaft furthest from the fan blades is higher than the end of the drive unit's output shaft closest to the fan blades.

3. The method for remediating and treating black and odorous water bodies according to claim 1, characterized in that: In S3, after the floating debris is removed, aquatic plant seeds are manually sown on the filter screen so that the seeds adhere to the filter screen.

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