Method and device for separating and recycling sediment components of ion exchanger driven drainage pipe channel

Abstract

The invention discloses a method and a device for stripping and recycling sediments of a drainage pipe channel driven by an ion exchanger, and relates to the field of drainage pipe channel sediment treatment.The method comprises the following steps: step S1, large-particle impurities are removed through a screen and 0.1 MPa water pressure flushing, and sieved sediments A are obtained; s2, mixing A with water to form a feeding sediment B; s3, adding an ion exchanger, and stirring for more than 2 hours to form a mixture C; s4, separating out the ion exchanger to obtain a discharge sediment D; s5, carrying out solid-liquid separation on D, discharging organic components into a pipe channel, and detecting volatile components from inorganic components; step S6, detecting the volatile component proportion of the inorganic component, and if the volatile component proportion exceeds 5%, repeating the process; and S7, the ion exchanger is recycled after being cleaned and regenerated. The invention provides an efficient, environment-friendly and economical drainage pipe and canal sediment treatment method, efficient stripping of organic components and high-quality recycling of inorganic components can be realized, and meanwhile, environmental pollution and resource consumption are reduced.

Description

Technical Field

[0001] The invention relates to the field of drainage channel sediment treatment, and in particular to an ion exchanger driven drainage channel sediment component separation and recovery method and device. Background Art

[0002] Drainage canals are urban infrastructure that are responsible for the collection and transportation of sewage, wastewater, and rainwater. Gravity drainage canals are commonly used in my country. The slope of the canals is small, and the flow rate of sewage, wastewater, and rainwater is slow. The suspended solid particles carried in the sewage, wastewater, and rainwater will inevitably settle and accumulate during the long process of canal transportation, and adhere to the bottom of the canals. At the same time, the dissolved organic matter carried in the sewage, wastewater, and rainwater gradually adheres to the surface of the sediment particles, and finally forms drainage canal sediments. The sedimentation problem of urban drainage canals in my country is serious. The degree of sedimentation in drainage canals in the old urban areas of some cities even exceeds 60%. Sediment accumulation in canals not only reduces the flow capacity and the risk of pollutant overflow, but also contains a large number of anaerobic microorganisms, whose metabolic activities consume the carbon source substrate in sewage, wastewater, and rainwater. It is the main driving source of hazardous gases, odors, and greenhouse gases in drainage canals, and is also the main cause of corrosion and leakage in canals.

[0003] According to the investigation, the inorganic components in the sediments of drainage channels are the main components, accounting for more than 80-90% of the dry weight of the sediments, and the organic components account for about 10-20%. In the past, the sediments of drainage channels were usually disposed of by manual cleaning and then transported for incineration or landfilling. However, the calorific value of the sediments is low, and the incineration efficiency is not good. Landfilling will lead to disorderly discharge of pollutants. The easily degradable organic matter and microorganisms contained in the sediments are very likely to pollute the landfill environment. At present, the resource treatment of drainage channel sediments is the development trend in this field. It is suitable for resource recycling as a raw material for building materials or brick making. However, the organic components of the sediments have strong cohesion and adhesion, and they are attached to the surface of inorganic components such as sand and gravel, making them difficult to remove. The cross-linked mixed structure of organic and inorganic components limits the quality of the sediments and the way of resource utilization, and the organic components are prone to environmental pollution risks. In 2020, the country issued the "Technical Regulations for Treatment of Urban Drainage Canal Sludge" (T / CECS 700-2020), which further clarified that drainage canal sediments (also known as drainage canal sludge) need to be separated into organic and inorganic components, and the proportion of organic components needs to be reduced to less than 5% before they can be landfilled or disposed of as resources.

[0004] The traditional method for separating components of drainage channel sediments is hydraulic washing, which uses hydraulic shear force and scouring force to forcibly separate organic components and inorganic components, and uses cyclone separation to screen components of different particle sizes. However, this method has low separation efficiency, huge water and energy consumption, and high cost. At the same time, this method has complex equipment and occupies a large area. It is generally suitable for large-scale centralized disposal scenarios, resulting in a large workload for sediment dredging and transportation, high transportation costs, and pollution risks during transportation. Most previous studies have focused on improving hydraulic washing parameters and conditions or optimizing the configuration of hydraulic washing reactors, and have not developed new methods for separating components of drainage channel sediments. In fact, the organic components of drainage channel sediments are mainly proteins, humic acid, microbial cells, polysaccharides, lipids, etc., which are combined in the form of multivalent metal ion bridges to form extracellular polymers, adhere to the surface of inorganic components, and wrap microbial cells to form a unique gel adhesion structure, which is the main bottleneck for the separation of organic and inorganic components. If the gel adhesion structure of drainage channel sediments can be broken down and the adhesion of organic components on the surface of inorganic components can be weakened, the hydraulic flushing force required to separate organic and inorganic components can be greatly reduced, that is, water and energy consumption can be reduced. However, such technology is currently lacking. Summary of the invention

[0005] The purpose of the present invention is to provide a method and device for separating and recovering sediment components in drainage pipes and canals driven by an ion exchanger, so as to solve the above-mentioned technical problems existing in the prior art.

[0006] To achieve the above object, in one aspect, the present invention provides an ion exchanger driven method for separating and recovering sediment components in drainage pipes and canals, comprising the following steps:

[0007] Step S1, placing the drainage channel sediment on the surface of the sieve, flushing the sediment through the sieve with water at a water pressure of not less than 0.1 MPa to remove large particles of impurities, and obtaining the sieved sediment A;

[0008] Step S2, putting the sieved sediment A into a reactor, adding water, mixing the sieved sediment A and the water in a ratio of 1:2 to 1:10, adjusting the solid content of the sediment to ≤10%, and obtaining a feed sediment B;

[0009] Step S3, adding the ion exchanger to the feed sediment B in a dry weight ratio of 1:1 to 5:1 into the reactor, and continuously stirring the reaction for more than 2 hours to obtain a mixture C;

[0010] Step S4, separating and removing the ion exchanger from the mixture C to obtain a discharge sediment D;

[0011] Step S5, performing solid-liquid separation on the discharged sediment D, the obtained liquid is an organic component, which is discharged into the drainage pipe, and the obtained solid is an inorganic component, and the water content of the solid inorganic component should be ≤70%;

[0012] Step S6, detecting the volatile matter ratio of the inorganic components, if it is ≤5%, transporting it out for resource utilization, if it is >5%, treating it as drainage pipe sediment, repeating steps S1 to S6 until the volatile matter ratio is ≤5%, and then recycling it for resource utilization;

[0013] Step S7: The ion exchanger separated in step S4 is cleaned and regenerated using a regeneration liquid, and then recycled.

[0014] Optionally, in step S4, the ion exchanger is separated from the mixture C by magnetic separation or screening separation to obtain an output sediment D; when the ion exchanger is a magnetic ion exchange resin, the ion exchanger separation tank is provided with a magnetic suction device, and the method for separating the ion exchanger from the mixture is: using the magnetic suction device to adsorb the magnetic ion exchange resin, separating the magnetic ion exchange resin ion exchanger from the mixture C, and obtaining the output sediment D; the separated sediment D can be dehydrated by a cyclone separator, the feed pressure is 0.2 MPa, the outlet angle of the cyclone blade is 45 degrees, the solid phase and the liquid phase are separated, the obtained liquid is an organic component, and the obtained solid is an inorganic component. When the ion exchanger is ion exchange fiber and / or artificial zeolite, the ion exchanger separation tank is provided with an ion exchanger separation net (screen), and the method for separating and removing the ion exchanger from the mixture is: separation is performed using an ion exchanger separation net with a pore size of 6 mm; the separated sediment D can be dehydrated by a centrifugal dehydrator, the centrifugal dehydration speed is 7000 rpm, the centrifugal time is 15 minutes, and the solid phase and the liquid phase are separated, the obtained liquid is an organic component, and the obtained solid is an inorganic component.

[0015] Optionally, in step S7, the separated ion exchanger is cleaned and regenerated using a NaCl or HCl solution, with a regeneration time of ≥1 h and a regeneration degree of ≥75%.

[0016] Optionally, the ion exchanger used in step S3 is one or more of a water-insoluble magnetic ion exchange resin, an ion exchange fiber, and an artificial zeolite; when the ion exchanger is a magnetic ion exchange resin, its particle size is 0.4 to 0.7 mm; when the ion exchanger is an ion exchange fiber and / or an artificial zeolite, its particle size is >6 mm.

[0017] Optionally, in step S3, the reaction is continued with stirring at a rotation speed of 120 to 300 rpm for 2 to 10 hours to obtain a mixture C.

[0018] Optionally, in step S5, the discharged sediment D is separated into solid and liquid by cyclone separation, centrifugal dehydration and belt filter press; when cyclone separation is performed for solid-liquid separation, the diameter of the cyclone separation is selected according to the particle size distribution of the sediment, the feed pressure is >0.2MPa, and the outlet angle of the cyclone blade is 30-60°; when centrifugal dehydration is performed for solid-liquid separation, the speed of the centrifugal dehydration is 3000-10000rpm, the centrifugation time is 5-20min, and the aperture of the built-in screen basket is 0.2-0.5mm; when belt filter press is performed for solid-liquid separation, the aperture of the filter belt of the belt filter press should be <0.1mm, and the filtration pressure is >0.5MPa.

[0019] On the other hand, the present invention also provides an ion exchanger driven drainage channel sediment component separation and recovery device, which is used to perform any of the above-mentioned ion exchanger driven drainage channel sediment component separation and recovery methods, and the device comprises a feed and pre-treatment module, a sediment treatment reactor module, a solid-liquid separation module, and an ion exchanger recycling and reuse module which are sequentially arranged in a process sequence;

[0020] The sediment treatment reactor module includes a sediment treatment reactor, a first stirring paddle, a first stirring motor, a first stirring motor bracket, a feed screen fixing rod, a discharge hopper, a first discharge pipe, and a discharge valve provided on the first discharge pipe, which is used to fully stir and mix the pre-treated drainage channel sediment with the ion exchanger to break down the gel adhesion structure of the organic component and the inorganic component, and promote the organic component to be peeled off from the surface of the inorganic component. The sediment treatment reactor is provided with a first stirring paddle, which is connected to the first stirring motor, and has two layers of blades, and the distance between the two layers of blades is ≥30cm;

[0021] The feed and pre-treatment module includes a sediment feeding port, a feed screen separator, a handheld scourer, a flushing water pump, a flushing water tank, a scraper, a slag outlet, and a slag storage bucket, which are used to remove large particle impurities in the sediment of the drainage pipe; the feed screen separator is a detachable circular screen with an aperture of 1 to 5 mm, equipped with a detachable fixing rod, and is located 40 to 70 cm below the sediment feeding port; the handheld scourer can be moved at will, and is used to flush the sediment to be evenly distributed and pass through the feed screen separator;

[0022] The solid-liquid separation module is used to separate the solid phase and liquid phase of the sediment, and includes a solid-liquid separator, an inorganic solid phase slag discharge bucket, an inorganic solid phase discharge pipe and a discharge valve, and an organic liquid phase discharge pipe; the feed end of the solid-liquid separator is connected to a lifting pump, and the discharge end is connected to an inorganic solid phase storage tank;

[0023] The ion exchanger recycling and regeneration reuse module includes an ion exchanger feeding port, an ion exchanger separation tank, an ion exchanger regeneration tank, an ion exchanger separation net, a second discharge pipe, a regeneration liquid discharge pipe, and a regeneration liquid storage tank, and is used to clean, regenerate, and reuse the ion exchanger by adding it to the reaction system; the ion exchanger regeneration tank is equipped with an ion exchanger regeneration net, and the ion exchanger regeneration tank is used to regenerate the separated and recovered ion exchanger, and the ion exchanger regeneration tank is equipped with a second stirring paddle, and the second stirring paddle is transmission-connected to a second stirring motor;

[0024] The detection module includes a volatile matter detection system and a water content detection system, which are used to detect the volatile matter ratio and water content of the solid phase components in the inorganic solid phase storage tank, so as to evaluate the proportion of organic components in the treated sediment; the volatile matter detection system includes a volatile matter detection platform and its supporting circuit system, and the water content detection system includes a water content detection platform and its supporting circuit system.

[0025] The device of the present invention also includes a power and automatic control module. The power and automatic control module includes a mobile power supply and an electric control cabinet, which are used to provide a movable power supply and an electric control switch for the device. The power of the mobile power supply is not less than 5000W; the electric control cabinet can control the stirring, valves, and pumps of the device. The power required by the device of the present invention is provided by the mobile power supply, and the device operation switch is controlled by the electric control cabinet.

[0026] The device of the present invention can be arranged in a device outer box, which can be installed on the rear box of a truck, so as to facilitate mobile treatment of sewage pipe sediments. A pulley for facilitating movement is also arranged at the bottom of the device outer box.

[0027] Optionally, when the ion exchanger is a magnetic ion exchange resin, a magnetic attraction device is provided on the side wall of the ion exchanger separation tank.

[0028] Optionally, when the ion exchanger is ion exchange fiber or artificial zeolite, the ion exchanger separation pool is equipped with an ion exchanger separation net with a pore size of 6 mm.

[0029] Optionally, the detection module includes a volatile matter detection system and a water content detection system, which are used to detect the volatile matter ratio and water content of the solid phase components in the inorganic solid phase storage tank.

[0030] The present invention discloses the following technical effects:

[0031] 1. Efficient stripping of organic components: By destroying the bridging bond of multivalent metal ions to sediment components, the present invention can weaken the adhesion of organic components to inorganic components under mild conditions, prompting the organic components to be stripped and dissolved into the liquid phase, while the inorganic components are recovered in the form of a solid phase. This method improves the stripping rate of organic components and reduces the volatile content of inorganic components, meeting the requirements of current national technical regulations.

[0032] 2. Low energy consumption, water consumption and treatment cost: Since the adhesion gel structure of the sediment is weakened, the adhesion force of the organic component on the surface of the inorganic component is greatly reduced, which reduces the resistance of the sediment to hydraulic shear. The present invention requires a lower critical shear stress, lower hydraulic flushing energy consumption, and less water consumption, thereby reducing resource consumption and treatment costs.

[0033] 3. Significant environmental benefits: Due to the rapid stripping of organic components in sediments and the high-quality recovery of inorganic components (the volatile matter of the inorganic solid phase is greatly reduced), the present invention reduces the environmental pollution risk of organic components. At the same time, inorganic components can be recycled for building material aggregates and brick-making raw materials, realizing the resource utilization of waste and reducing the generation of greenhouse gases.

[0034] 4. Simplify equipment and process flow: Compared with traditional methods, the equipment and process flow of the present invention are simpler and easy to operate in a miniaturized manner. In-situ treatment can be performed at the inspection port of the drainage pipe, reducing the transportation volume and related pollution. It is particularly suitable for the treatment of sediments in urban drainage pipes.

[0035] 5. Recycling and regeneration of ion exchangers: The ion exchangers used in the present invention can be regenerated and reused, which reduces drug consumption and resource consumption, has low processing costs, and has significant economic benefits.

[0036] 6. Strong practicability and operability: The present invention provides a new sediment treatment mode, realizes resource utilization, fully utilizes the resource value of inorganic components in the sediment, broadens the high-value path, and effectively improves the economy and environmental protection of sediment treatment.

[0037] In general, the present invention is aimed at treating drainage channel sediments, and has the advantages of fast reaction, short treatment time, high organic component stripping rate, low proportion of volatile inorganic components and good quality. It can solve the problems of low organic component stripping efficiency, high proportion of volatile inorganic components (resulting in poor quality), the need to transport sediments for centralized treatment (high transportation cost, pollution risk during transportation, large land area for centralized disposal), and greenhouse gas generation during the treatment process in traditional sediment treatment methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 A schematic diagram of the structure of the ion exchanger driven drainage channel sediment stripping and recovery device proposed by the present invention;

[0040] In the figure: 1, sediment to be treated; 2, ion exchanger; 3, sediment treatment reactor; 4, first stirring paddle; 5, first stirring motor; 6, motor support frame; 7, feed screen fixing rod; 8, discharge hopper; 9, first discharge pipe; 10, sediment injection port; 11, feed screen separation device; 12, hand-held scourer; 13, flushing water pump; 14, scraper; 15, slag outlet; 16, slag storage hopper; 17, ion exchanger injection port; 18, ion exchanger separation tank; 19, ion exchanger regeneration tank; 20, ion Exchange agent separation net; 21. Second discharge pipe; 22. Regeneration liquid discharge pipe; 23. Magnetic suction device; 24. Organic liquid phase discharge pipe; 25. Second stirring paddle; 26. Second stirring motor; 27. Volatile matter detection system; 28. Water content detection system; 29. ​​Mobile power supply; 30. Electric control cabinet; 31. Lifting pump; 32. Solid-liquid separator; 33. Inorganic solid phase slag hopper; 34. Inorganic solid phase discharge pipe; 35. Flushing water tank; 36. Inorganic solid phase storage tank; 37. Regeneration liquid storage tank; 38. Device outer box; 39. Pulley. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Drainage canals are facilities used in cities to collect and transport sewage, wastewater, and rainwater. Due to the slow flow of water, materials in the pipes are easily deposited to form sediments. These sediments reduce the water flow capacity of the pipes, increase the risk of pollution, and produce harmful gases and corrode the pipes. Sediments are mainly composed of inorganic matter (80-90%) and organic matter (10-20%). The traditional treatment method is manual cleaning and then incineration or landfill, but these methods are inefficient and pollute the environment. At present, there is a preference for resource utilization of sediments, such as as raw materials for building materials, but the adhesion of organic matter makes separation difficult. In 2020, China issued technical regulations requiring that the organic matter content be reduced to less than 5% before landfill or resource treatment can be carried out. The existing hydraulic washing separation method is inefficient, costly, and has pollution risks. Therefore, it is necessary to develop new technologies to effectively separate the organic and inorganic components of sediments, reduce water and energy consumption, and at the same time achieve in-situ treatment of sediments and reduce environmental pollution.

[0043] To this end, the present invention proposes an ion exchanger driven drainage channel sediment component separation and recovery method and device, which mainly utilizes a renewable ion exchanger 2 to treat the drainage channel sediment to achieve organic component stripping and inorganic component recovery.

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] The embodiment of the present invention provides an ion exchanger driven method for separating and recovering sediment components in a drainage channel, comprising the following steps:

[0046] Step S1, placing the drainage channel sediment on the surface of the sieve, and using pressurized water at a water pressure of not less than 0.1 MPa to flush the sediment 1 to be processed through the sieve to remove large particles of impurities, thereby obtaining the sieved sediment A;

[0047] Step S2, putting the sieved sediment A into a reactor, adding water, mixing the sieved sediment A and the water in a ratio of 1:2 to 1:10, adjusting the solid content of the sediment to ≤10%, and obtaining a feed sediment B;

[0048] Step S3, adding ion exchanger 2 to feed sediment B in a dry weight ratio of 1:1 to 5:1 into the reactor, stirring and reacting at a rotation speed of 120 to 300 rpm for 2 to 10 hours to obtain a mixture C;

[0049] Step S4, separating the ion exchanger 2 from the mixture C by magnetic separation or sieve separation to obtain a discharge sediment D;

[0050] Step S5, using cyclone separation, centrifugal dehydration or belt filter press to separate the discharged sediment D into solid and liquid, the obtained liquid is an organic component, which is discharged into a drainage pipe, and the obtained solid is an inorganic component;

[0051] Step S6, detecting the volatile matter ratio of the inorganic component, if it is ≤5%, then recycling and utilizing it as a resource; if it is >5%, it is regarded as drainage pipe sediment, and steps S1 to S6 are repeated until the volatile matter ratio is ≤5%, then recycling and utilizing it as a resource; the inorganic component can be used as a raw material for coarse aggregate of building materials or raw material for making bricks after particle size screening and drying;

[0052] Step S7: The ion exchanger 2 separated in step S4 is cleaned and regenerated with a NaCl or HCl solution for ≥ 1 h, and then recycled and reused.

[0053] Furthermore, the water content of the discharged sediment D after the treatment in step S5 should be ≤70%, and the proportion of volatile matter should be ≤5%. On the one hand, reducing the water content of the discharged sediment provides favorable conditions for subsequent detection, transportation, and resource utilization, and on the other hand, reducing the organic content in the sediment not only reduces the risk of environmental pollution, but also allows the use of high-quality inorganic components as inorganic aggregates, meeting the current national standards for resource utilization of drainage channel sediments, and can be used as a raw material for building material coarse aggregates or brick making raw materials.

[0054] Furthermore, the regeneration degree of the ion exchanger 2 after regeneration in step S7 is ≥ 75%, otherwise it should be cleaned and regenerated again.

[0055] The above embodiment provides a method for stripping organic components and recovering inorganic components from drainage channel sediments driven by a regenerative ion exchanger, wherein the structural multivalent metal ions in the drainage channel sediments are removed by using a water-insoluble regenerative ion exchanger 2, and the regenerative ion exchanger 2 can ionize Na + or H +, and exchange reaction with multivalent metal ions in sediments, thereby weakening the bridging binding of multivalent metal ions to organic components, disintegrating the extracellular polymers of organic components on the surface of sediments, weakening the adhesion properties of organic components and inorganic components and the gel adhesion structure, promoting the solubilization and peeling of organic components and entering the liquid phase, while the inorganic components remain in the solid phase, and then the solid phase and liquid phase are separated by cyclone separation or mechanical dehydration. At the same time, the regenerable ion exchanger 2 can be recovered from the sediment by magnetic separation or sieve separation, and can be reused after cleaning and regeneration, without increasing the dry mass of the sediment and reducing the processing cost. The present invention is different from the traditional hydraulic washing method that uses severe hydraulic shear and scouring force to forcibly remove organic components. In essence, the present invention uses ion exchanger 2 to remove polyvalent metal ions in the sediment and disintegrate the gel adhesion structure, greatly reducing the adhesion of organic and inorganic components in the sediment, reducing the peeling resistance and peeling difficulty of the organic component, so that it can be removed from the surface of the inorganic component under the conditions of less water and lower hydraulic shear and scouring force. This method can realize the peeling of organic components in the sediment and the recovery of inorganic components under the conditions of low energy consumption, low water consumption, and recycling of reagents. It can solve the limitation of organic components on the resource utilization of sediments, reduce the environmental pollution risk of organic components, and increase the proportion of inorganic components in the sediment, that is, improve the quality of the sediment as a building material or brick-making raw material, and break through the shortcomings of traditional hydraulic washing methods such as high energy consumption, high water consumption, high cost, complex equipment, and only suitable for large-scale centralized disposal.

[0056] Reference Figure 1 As shown, an embodiment of the present invention also provides an ion exchanger driven drainage pipe sediment stripping and recovery device, which is used to perform the above-mentioned ion exchanger driven drainage pipe sediment stripping and recovery method. The device includes a sediment treatment reactor module, a feed and pre-treatment module, an ion exchanger recycling and reuse module, a solid-liquid separation module, a detection module, and an electric power and automatic control module.

[0057] As shown in the figure, the sediment treatment reactor module includes a sediment treatment reactor 3, a first stirring paddle 4, a first stirring motor 5, a first stirring motor bracket, a feed screen fixing rod 7, a discharge hopper 8, a first discharge pipe 9 and a discharge valve arranged on the first discharge pipe 9, which are used to fully stir and mix the pre-treated drainage channel sediment with the ion exchanger 2 to break down the gel adhesion structure of the organic component and the inorganic component, and promote the organic component to be peeled off from the surface of the inorganic component. Specifically, the sediment treatment reactor 3 is a cylindrical reactor with a height not exceeding 1m and a diameter-to-height ratio of 1:1 to 1:3; the first stirring paddle 4 is arranged in the sediment treatment reactor 3 and is provided with two layers of blades, the spacing between the two layers of blades should be ≥30cm, and is used to stir and mix the feed sediment and ion exchanger 2 and prevent the two from settling; the first stirring motor 5 is fixed above the motor support frame 6 and is connected to the first stirring paddle 4; the motor support frame 6 is located at the top of the sediment treatment reactor 3; the feed screen fixing rod 7 is arranged on the inner wall of the sediment treatment reactor 3, located 40 to 70cm below the top of the sediment treatment reactor 3 and 30 to 50cm above the first stirring paddle 4; the discharge hopper 8 is located at the bottom of the sediment treatment reactor 3, is conical in shape, and is used to collect sediment after the reaction is completed; the first discharge pipe 9 is connected to the first discharge hopper 8 for discharging sediment.

[0058] The feed and pre-treatment module includes a sediment injection port 10, a feed screen separation device 11, a handheld scourer 12, a flushing water pump 13, a flushing water tank 35, a scraper 14, a slag outlet 15, and a slag storage hopper 16, which are used to remove large particles of impurities in the sediment of the drainage pipe. Specifically, the sediment addition port 10 is a circular addition port with a diameter of 30 to 50 cm, which is located at the top of the sediment treatment reactor 3, and the sediment 1 to be treated enters the feed and pre-treatment module through the sediment addition port 10; the feed screen separation device 11 is a detachable circular screen with an aperture of 1 to 5 mm, and is equipped with a detachable fixing rod, which is located 40 to 70 cm below the sediment addition port 10; the hand-held scourer 12 can be moved at will, and is used to flush the sediment to a uniform distribution and pass through the feed screen separation device 11; the head of the flushing water pump 13 is ≥0.1 MPa, and is connected to the flushing water tank 35 and the hand-held scourer 12; the scraper plate 14 is located above the feed screen separation device 11, and can rotate back and forth to scrape the trapped large particles of impurities to the slag outlet 15; the slag outlet 15 is connected to the slag storage hopper 16, and the slag storage hopper 16 is arranged on one side edge of the feed screen separation device 11.

[0059] The ion exchanger recycling and regeneration reuse module includes an ion exchanger addition port 17, an ion exchanger separation tank 18, an ion exchanger regeneration tank 19, an ion exchanger separation net 20, a second discharge pipe 21, a regeneration liquid discharge pipe 22, and a regeneration liquid storage tank 37, which are used to clean, regenerate and reuse the ion exchanger 2 (regenerable ion exchange resin) by adding it to the reaction system. Specifically, the ion exchanger addition port 17 is located at the top of the sediment treatment reactor 3 and is used to add the ion exchanger 2; the ion exchanger separation tank 18 is used to separate and recover the ion exchanger 2 from the mixture of sediment and ion exchanger 2, and the bottom is connected to the second discharge pipe 21 and the discharge valve, and the diameter of the second discharge pipe 21 is ≥10 cm; the ion exchanger regeneration tank 19 is used to regenerate the separated and recovered ion exchanger 2, and has a built-in second stirring paddle 25, which is transmission-connected to the second stirring motor 26, and the second stirring motor 26 is fixed on the top of the ion exchanger regeneration tank 19, and the bottom of the ion exchanger regeneration tank 19 is connected to the regeneration liquid discharge pipe 22, and the regeneration liquid discharge pipe 22 is provided with a discharge valve, and the other end of the regeneration liquid discharge pipe 22 is connected to the regeneration liquid storage tank 37.

[0060] In some embodiments, if the ion exchanger 2 used is a magnetic ion exchange resin, the ion exchanger separation tank 18 needs to be provided with a magnetic attraction device 23 on the side wall.

[0061] In other embodiments, if the ion exchanger 2 used is ion exchange fiber and artificial zeolite, the ion exchanger separation pool 18 needs to be built with an ion exchanger separation net 20 with a pore size of 6 mm.

[0062] The solid-liquid separation module includes a lifting pump 31, a solid-liquid separator 32, an inorganic solid phase slag discharge bucket 33, an inorganic solid phase discharge pipe 34 and a discharge valve, an organic liquid phase discharge pipe 24, and an inorganic solid phase storage tank 36, which are used to separate the solid phase and liquid phase of the sediment.

[0063] The detection module includes a volatile detection system 27 and a water content detection system 28, which are used to detect the volatile content ratio and water content of the solid phase components in the inorganic solid phase storage tank 36, so as to evaluate the proportion of organic components in the treated sediment. The volatile detection system 27 includes a volatile detection platform and its supporting circuit system, and the water content detection system 28 includes a water content detection platform and its supporting circuit system.

[0064] The power and automatic control module includes a mobile power supply 29 and an electric control cabinet 30, which are used to provide a portable power supply and an electric control switch for the device. The power of the mobile power supply 29 is not less than 5000W; the electric control cabinet 30 can control the stirring, valves, and pumps of the device; the power required by the device of the present invention is provided by the mobile power supply 29, and the device operation switch is controlled by the electric control cabinet 30.

[0065] In some embodiments, the device of the present invention is disposed in a device outer box 38, which can be installed in the rear box of a truck to facilitate mobile treatment of sewage pipe sediments. A pulley 39 is also disposed at the bottom of the device outer box 38 to facilitate movement.

[0066] It should be understood that, in actual use, the device of the present invention may be equipped with a sewage pipe sediment cleaner for cleaning out sediment from the sewage pipe inspection well and adding the sediment to the sediment adding port 10 .

[0067] In some embodiments, the organic liquid phase discharge pipe 24 is connected to a sewage pipe inspection well to facilitate in-situ discharge of the organic liquid phase into the sewage pipe.

[0068] In some embodiments, the device is made entirely of stainless steel to withstand mechanical wear from inorganic sand and gravel in the sediment.

[0069] Based on the ion exchanger driven drainage channel sediment component separation and recovery device described in the above embodiment, in a specific implementation mode 1, the ion exchanger driven drainage channel sediment component separation and recovery method comprises the following steps:

[0070] Step S1, firstly, the feed screen separation device 11 is fixedly installed on the feed screen fixing rod 7, and then the sediment to be treated 1 in the drainage pipe is put into the sediment treatment reactor 3 from the sediment feeding port 10, and it is placed on the surface of the feed screen separation device 11 with an aperture of 1 to 5 mm, and water is pumped from the flushing water tank 35 by a flushing water pump 13, and the sediment is flushed through the screen by water flow by a handheld flusher 12 at a water pressure of not less than 0.1 MPa, and at the same time, the large particle impurities on the surface of the screen are scraped off by a scraper plate 14 to the slag outlet 15, and enter the slag storage hopper 16, and the remaining small particle sediments enter the reaction zone of the sediment treatment reactor 3 to obtain the sieved sediment A;

[0071] Step S2, adding water from the sediment adding port 10 to the sediment treatment reactor 3, mixing the sieved sediment A with water at a ratio of 1:2 to 1:10, adjusting the solid content of the sediment to ≤10%, and obtaining feed sediment B;

[0072] Step S3, adding a magnetic ion exchange resin with a particle size of 0.4 to 0.7 mm into the sediment treatment reactor 3 from the ion exchange agent addition port 17, wherein the dry weight ratio of the magnetic ion exchange resin to the feed sediment B is 1:1 to 5:1, and the two are fully mixed at 120 to 300 rpm for 2 to 10 hours using the first stirring motor 5 and the first stirring paddle 4 fixed on the first stirring motor bracket to obtain a mixture C;

[0073] Step S4, stopping stirring, allowing the mixture C to settle by gravity and concentrate in the discharge hopper 8, opening the discharge valve on the first discharge pipe 9, discharging the mixture C and conveying it to the ion exchanger separation tank 18 by gravity, using the magnetic suction device 23 provided on the side wall to adsorb the magnetic ion exchange resin, separating the magnetic ion exchange resin from the mixture C, and obtaining the discharge sediment D, then opening the discharge valve on the second discharge pipe 21, discharging the discharge sediment D and conveying it to the solid-liquid separator 32 by the lift pump 31;

[0074] Step S5, using a cyclone separator as a solid-liquid separator 32 to dehydrate the discharged sediment D, with a feed pressure of ≥0.2 MPa and a cyclone blade outlet angle of 30-60°, to separate the solid phase and liquid phase of the discharged sediment D, wherein the obtained liquid is an organic component, and the liquid phase is discharged into a drainage channel through an organic liquid phase discharge pipe 24, and the obtained solid is an inorganic component and is stored in an inorganic solid phase discharge hopper 33, and the discharge valve on the inorganic solid phase discharge pipe 34 is opened to discharge the inorganic solid phase into and store it in an inorganic solid phase storage tank 36;

[0075] Step S6, using the volatile matter detection system 27 to detect the volatile matter ratio of the inorganic component, and using the moisture content detection system 28 to detect the moisture content of the inorganic component. If the volatile matter is ≤5% and the moisture content is ≤70%, the particles are screened and air-dried to be used as a raw material for coarse aggregate of building materials or a raw material for brick making; if the volatile matter is >5%, it is regarded as a drainage channel sediment, and steps S1 to S6 are repeated until the volatile matter ratio is ≤5%. If the moisture content is >70%, step S5 is repeated until the moisture content is ≤70%, and then the inorganic components are screened and air-dried to be used as a raw material for coarse aggregate of building materials or a raw material for brick making;

[0076] Step S7, the magnetic ion exchange resin separated and taken out in step S4 is placed in the ion exchanger regeneration tank 19, and NaCl or HCl solution is injected, and the second stirring motor 26 and the second stirring paddle 25 are used to mix and stir for ≥ 1 hour, and then the discharge valve on the regeneration liquid discharge pipe 22 is opened to discharge the NaCl or HCl solution to the regeneration liquid storage tank 37, and the magnetic ion exchange resin is collected for reuse.

[0077] In another specific embodiment 2, the ion exchanger 2 used in step S3 is an ion exchange fiber or artificial zeolite with a particle size > 6 mm, and the ion exchanger separation tank 18 in step S4 is not provided with a magnetic suction device 23, but is provided with an ion exchanger separation net 20 with a built-in pore size of 6 mm to filter and retain the ion exchange gel or artificial zeolite; the rest is the same as the specific embodiment 1.

[0078] In another specific embodiment three, step S5 uses a centrifugal dehydrator as a solid-liquid separator 32, the rotation speed of the centrifugal dehydration is 3000-10000 rpm, the centrifugal time is 5-20 min, and a built-in screen basket is required, and the pore size of the screen basket is 0.2-0.5 mm; the rest is the same as specific embodiment one or two.

[0079] In another specific embodiment four, step S5 uses a belt filter press as the solid-liquid separator 32, the filter belt pore size of the belt filter press should be <0.1mm, and the filtration pressure should be >0.5MPa; the rest is the same as specific embodiment one or two.

[0080] The above-mentioned recycling method and recycling device are used to treat drainage channel sediments, which can achieve efficient stripping of organic components and high-quality recovery of inorganic components, thereby reducing environmental pollution and resource consumption. Two specific embodiments are given below:

[0081] Example 1

[0082] Sediments were cleared from a combined sewer inspection well in Xi'an, with a water content of 79.6% and a volatile matter ratio (organic component ratio) of 11.8%. 500 mL of sediment was added to the sediment treatment reactor 3, and the sediment was flushed with a handheld flusher 12 at a flushing water pressure of 0.2 MPa, so that the sediment passed through a feed screen separation device 11 with an aperture of 3 mm, and large particles of impurities were scraped off to the slag outlet 15 by a scraper plate 14, and entered the slag storage hopper 16, and small particles of sediment entered the reaction zone of the sediment treatment reactor 3 to obtain sieved sediment A. 3000 mL of water was added to the sediment treatment reactor 3, and the sieved sediment A was mixed with water at a ratio of 1:6, and the solid content of the sediment was adjusted to about 30 g / L to obtain feed sediment B. 525g of magnetic ion exchange resin with an average particle size of 0.55mm was added into the sediment reactor from the ion exchanger addition port 17, and the two were fully mixed at 300rpm for 6h to obtain a mixture C, and then the stirring was stopped, and the mixture C was concentrated to the discharge hopper 8 by gravity sedimentation, and discharged to the ion exchanger separation tank 18, and the magnetic ion exchange resin was adsorbed by the magnetic suction device 23 arranged on the side wall, and the magnetic ion exchange resin ion exchanger 2 was separated from the mixture C to obtain the discharged sediment D. The discharged sediment D was discharged and transported to the cyclone separator for dehydration, the feed pressure was 0.2MPa, the outlet angle of the cyclone blade was 45 degrees, and the solid phase and the liquid phase were separated, the obtained liquid was an organic component, and the obtained solid was an inorganic component, which was stored in the inorganic solid phase storage hopper. At the same time, the magnetic ion exchange resin was taken out from the ion exchanger separation tank 18, placed in the ion exchanger regeneration tank 19, injected with 1000mL of 2mol / L NaCl solution, stirred and regenerated for 2h, and the magnetic ion exchange resin was reused after regeneration.

[0083] After actual testing, the recovered sediment solid phase components after the above treatment accounted for 4.8% of volatile matter and 68.4% of water content, while the control group accounted for 10.3% of volatile matter and 72.9% of water content. The recovered sediment inorganic components meet the requirements of the "Technical Regulations for Treatment of Urban Drainage Canal Sludge" (T / CECS 700-2020). After particle size screening and drying, they can be used as raw materials for coarse aggregates of building materials or raw materials for brick making. In addition, the regeneration degree of the regenerated magnetic ion exchange resin is 83.7%, which can be reused.

[0084]

[0085] Embodiment 2:

[0086] Sediments were cleared from a combined sewer inspection well in Xi'an, with a water content of 80.5% and a volatile matter ratio (organic component ratio) of 12.5%. 500 mL of sediment was added to the sediment treatment reactor 3, and the sediment was flushed with a handheld flusher 12 at a flushing water pressure of 0.2 MPa, so that the sediment passed through a feed screen separation device 11 with an aperture of 4 mm, and large particles of impurities were scraped off to the slag outlet 15 by a scraper plate 14, and entered the slag storage hopper 16, and small particles of sediment entered the reaction zone of the sediment treatment reactor 3 to obtain screened sediment. 4500 mL of water was added to the sediment treatment reactor 3, and the screened sediment was mixed with water at a ratio of 1:9, and the solid content of the sediment was adjusted to about 20 g / L to obtain feed sediment B. 500g of ion exchange fiber with an average particle size of 10mm was added into the sediment reactor from the ion exchanger addition port 17, and the two were fully mixed at 250rpm for 8h to obtain a mixture C, and then the stirring was stopped, and the mixture C was concentrated to the discharge hopper 8 by gravity sedimentation, and discharged to the ion exchanger separation tank 18. The ion exchange fiber was intercepted and separated from the mixture C by an ion exchanger separation net 20 with a pore size of 6mm to obtain a discharge sediment D, which was dehydrated in a centrifugal dehydrator with a centrifugal dehydration speed of 7000rpm and a centrifugal time of 15min to separate the solid phase and the liquid phase. The obtained liquid was an organic component, and the obtained solid was an inorganic component, which was stored in an inorganic solid phase storage bucket. At the same time, the ion exchange fiber was taken out from the ion exchanger separation tank 18, placed in the ion exchanger separation net 20 and the ion exchanger regeneration tank 19, injected with 1500mL of a 2mol / L NaCl solution, stirred and regenerated for 2h, and the regenerated ion exchange fiber was reused.

[0087] After actual testing, after the above treatment, the volatile matter proportion of the recovered sediment solid phase components was 6.9%, the water content was 67.1%, and the regeneration degree of the regenerated ion exchange gel was 80.3%, which can be reused. Analysis shows that the volatile matter proportion of the sediment solid phase components does not meet the requirements of the present invention, so the regenerated ion exchange fiber is used to re-treat the sediment solid phase components. After the secondary treatment, the volatile matter proportion of the recovered sediment solid phase components was 4.3%, and the water content was 64.5%, while the volatile matter proportion of the control group was 11.6%, and the water content was 70.4%. The recovered sediment inorganic components meet the requirements of the "Technical Regulations for Treatment of Urban Drainage Pipe Sludge" (T / CECS 700-2020), and can be used as a raw material for coarse aggregate of building materials or raw materials for brick making after particle size screening and drying.

[0088]

[0089] Compared with the prior art, the present invention at least discloses the following beneficial effects:

[0090] 1. The present invention utilizes a renewable ion exchanger 2 to destroy the bridging bond of polyvalent metal ions to the sediment, weakens the adhesion properties and gel adhesion structure of organic and inorganic components under mild conditions, promotes the solubilization and stripping of organic components into the liquid phase, and recovers the inorganic components in the form of a solid phase. It has the advantages of fast reaction, short processing time, high organic component stripping rate, low volatile matter ratio of inorganic components and good quality. Under the conditions of the embodiment, the stripping rate of organic components in the sediment is increased by 4.67 to 9.11 times, and the volatile matter ratio of inorganic components can be reduced by 53.40 to 62.93%. The treated sediment meets the requirements of the Technical Specifications for Treatment of Sludge in Urban Drainage Canals (T / CECS 700-2020).

[0091] 2. The present invention can weaken the adhesive gel structure of the sediment, greatly reduce the adhesion of the organic component on the surface of the inorganic component, and greatly weaken its resistance to hydraulic shear, that is, the critical shear stress is reduced, and less hydraulic flushing and stirring are required. Therefore, compared with the traditional method, the present invention only requires a small amount of stirring and pumping energy consumption, and only a small amount of water is needed to adjust the solid content of the sediment. The required energy consumption and water consumption are both low, the resource consumption is low, and the processing cost is low.

[0092] 3. Compared with traditional methods, the present invention can achieve rapid stripping of organic components in sediments and high-quality recovery of inorganic components. On the one hand, it reduces the environmental pollution risk of organic components in sediments, and on the other hand, it can recycle inorganic components for building material aggregates and brick-making raw materials, realizing waste resource recycling. It can solve the problems of low organic component stripping efficiency, high proportion of inorganic component volatiles (poor quality), and greenhouse gas generation during the disposal process in traditional drainage channel sediment treatment and disposal methods, and has significant environmental benefits.

[0093] 4. Compared with the traditional method, the equipment and process flow of the present invention are simple, and have the advantages of high device integration, high process integration, and easy miniaturization operation. The sediment can be treated in situ at the inspection port of the drainage pipe, reducing the amount of sediment transportation, avoiding leakage pollution caused by the transportation process, carbon emissions caused by fuel consumption, and the problem of tight construction land for centralized disposal. It is particularly suitable for the application scenario of sediment disposal in urban drainage pipes.

[0094] 5. The ion exchanger 2 used in the present invention can be regenerated and reused, has the advantages of low drug consumption, low resource consumption, and no increase in the dry mass of sediment, low processing cost, and significant economic benefits.

[0095] 6. The present invention is highly targeted, practical and operational, and can provide a new model for sediment treatment, realize the resource utilization of sediments, make full use of the resource value of inorganic components in sediments, broaden the high-value path, and effectively improve the economy and environmental protection of sediment treatment.

[0096] The details not disclosed in the present invention are conventional technical means well known to those skilled in the art.

[0097] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0098] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An ion exchanger driven method for separating and recovering sediment components in drainage pipes and canals, characterized in that: To do this, follow these steps: Step S1, placing the sediment in the drainage channel on the surface of a sieve with an aperture of 1 to 5 mm, flushing the sediment through the sieve with water at a water pressure of not less than 0.1 MPa to remove large particles of impurities, and obtaining a sieved sediment A; Step S2, putting the sieved sediment A into a reactor, adding water, mixing the sieved sediment A and the water in a ratio of 1:2 to 1:10, adjusting the solid content of the sediment to ≤10%, and obtaining a feed sediment B; Step S3, adding the ion exchanger (2) to the feed sediment B in a dry weight ratio of 1:1 to 5:1 into the reactor, and continuously stirring and reacting for more than 2 hours to obtain a mixture C; Step S4, separating and removing the ion exchanger (2) from the mixture C to obtain a discharge sediment D; Step S5, performing solid-liquid separation on the discharged sediment D, the obtained liquid is an organic component, which is discharged into the drainage pipe, and the obtained solid is an inorganic component, and the water content of the solid inorganic component should be ≤70%; Step S6, detecting the volatile content of the inorganic components, if it is ≤5%, recycling it as a resource, if it is >5%, treating it as drainage pipe sediment, repeating steps S1 to S6 until the volatile content is ≤5%, and then recycling it as a resource; Step S7: The ion exchanger (2) separated in step S4 is cleaned and regenerated using a regeneration liquid, and then recycled.

2. The ion exchanger driven drainage channel sediment component separation and recovery method according to claim 1, characterized in that: In the step S4, the ion exchanger (2) is separated from the mixture C by magnetic separation or sieving separation to obtain a discharge sediment D.

3. The ion exchanger driven drainage channel sediment component separation and recovery method according to claim 1, characterized in that: In the step S7, the separated ion exchanger (2) is cleaned and regenerated using a NaCl or HCl solution, the regeneration time is ≥ 1 h, and the regeneration degree is ≥ 75%.

4. The ion exchanger driven drainage channel sediment component separation and recovery method according to claim 1, characterized in that: The ion exchanger (2) used in step S3 is one or more of a water-insoluble magnetic ion exchange resin, an ion exchange fiber, and an artificial zeolite; when the ion exchanger (2) is a magnetic ion exchange resin, its particle size is 0.4 to 0.7 mm; when the ion exchanger (2) is an ion exchange fiber and / or an artificial zeolite, its particle size is >6 mm.

5. The ion exchanger driven drainage channel sediment component separation and recovery method according to claim 1, characterized in that: In the step S3, the mixture is stirred and reacted for 2 to 10 hours at a rotation speed of 120 to 300 rpm to obtain a mixture C.

6. The ion exchanger driven drainage channel sediment component separation and recovery method according to claim 1, characterized in that: In the step S5, the discharged sediment D is separated into solid and liquid by cyclone separation, centrifugal dehydration and belt filter press; when the cyclone separation is performed for solid-liquid separation, the diameter of the cyclone separation is selected according to the particle size distribution of the sediment, the feed pressure is>0.2MPa, and the outlet angle of the cyclone blade is 30-60°; when the solid-liquid separation is performed by the centrifugal dehydration method, the speed of the centrifugal dehydration is 3000-10000rpm, the centrifugal time is 5-20min, and the aperture of the built-in screen basket is 0.2-0.5mm; when the solid-liquid separation is performed by the belt filter press method, the aperture of the filter belt of the belt filter press should be <0.1mm, and the filtration pressure is>0.5MPa.

7. An ion exchanger driven drainage channel sediment component separation and recovery device, used to perform the ion exchanger driven drainage channel sediment stripping and recovery method according to any one of claims 1 to 6, characterized in that: It includes a feed and pre-treatment module, a sediment treatment reactor module, a solid-liquid separation module, an ion exchange agent recycling and regeneration module, and a detection module which are arranged in sequence according to the process sequence; The sediment treatment reactor module comprises a sediment treatment reactor (3), wherein a first stirring paddle (4) is arranged inside the sediment treatment reactor (3), the first stirring paddle (4) is connected to a first stirring motor (5), the first stirring paddle (4) has two layers of blades, and the distance between the two layers of blades is ≥30 cm; The feed and pre-treatment module comprises a feed screen separation device (11) and a handheld scourer (12) arranged at the discharge end of the sediment treatment reactor; The ion exchanger recycling and regeneration reuse module comprises an ion exchanger separation tank (18), an ion exchanger regeneration tank (19), an ion exchanger separation net (20), and a regeneration liquid storage tank (37); the ion exchanger regeneration tank (18) is equipped with an ion exchanger regeneration net (20); the ion exchanger regeneration tank (19) is used to regenerate the separated and recovered ion exchanger (2); the ion exchanger regeneration tank (19) is equipped with a second stirring paddle (25); the second stirring paddle (25) is transmission-connected to a second stirring motor (26); The solid-liquid separation module is used to separate solid phase matter and liquid phase matter in sediments, and comprises a solid-liquid separator (32), an inorganic solid phase slag discharge bucket (33), an inorganic solid phase discharge pipe (34) and a discharge valve, and an organic liquid phase discharge pipe (24).

8. The ion exchanger driven drainage channel sediment component separation and recovery device according to claim 7, characterized in that: When the ion exchanger (2) is a magnetic ion exchange resin, a magnetic attraction device (23) is provided on the side wall of the ion exchanger separation tank (18).

9. The ion exchanger driven drainage channel sediment component separation and recovery device according to claim 7, characterized in that: When the ion exchanger (2) is ion exchange fiber or artificial zeolite, the ion exchanger separation pool (18) is internally provided with an ion exchanger separation net (20) having a pore size of 6 mm.

10. The ion exchanger driven drainage channel sediment component separation and recovery device according to claim 7, characterized in that: The detection module comprises a volatile matter detection system (27) and a water content detection system (28), which are used to detect the volatile matter ratio and water content of the solid phase components in the inorganic solid phase storage tank (36).

Images