Disclosure of utility model
(One) solving the technical problems
Aiming at the defects of the prior art, the utility model provides an advanced oxidation treatment device for treating and purifying eutrophic water body, which can solve at least one technical problem.
(II) technical scheme
The advanced oxidation treatment device for eutrophic water body treatment and purification comprises an ozone generator, a reaction chamber, a filter, a multiphase flow dissolved air pump, a nozzle, a supporting plate, a supporting layer, a catalyst filler layer, a direct current power supply and a BDD electrolytic tank, wherein the BDD electrolytic tank is provided with a BDD electrode module, the direct current power supply is connected with the BDD electrode module, the ozone generator is connected with a water inlet pipe of the multiphase flow dissolved air pump through an air duct, the filter is arranged on the water inlet pipe, a water outlet of the multiphase flow dissolved air pump is connected with a water inlet of the reaction chamber, the nozzle is connected with the water inlet of the reaction chamber, and the nozzle, the supporting plate, the supporting layer, the catalyst filler layer and the BDD electrolytic tank are sequentially arranged in the reaction chamber from bottom to top.
Preferably, the advanced oxidation treatment device for eutrophic water body treatment and purification further comprises a stainless steel filter screen, wherein the stainless steel filter screen is arranged between the catalyst filler layer and the BDD electrolytic tank, and the mesh diameter of the stainless steel filter screen is smaller than the diameter of the catalyst.
Preferably, the two sides of the reaction chamber are provided with a charging port and a discharging port corresponding to the catalyst packing layer.
Preferably, the charging opening and the discharging opening are all obliquely arranged.
Preferably, the advanced oxidation treatment device for treating and purifying the eutrophic water body further comprises a multi-channel jet aerator, and the water outlet of the reaction chamber is connected with the multi-channel jet aerator.
Preferably, the advanced oxidation treatment device for eutrophic water body treatment and purification further comprises a mounting frame, wherein the ozone generator, the multiphase flow solution pump and the reaction chamber are all arranged on the mounting frame, and universal wheels are arranged at the bottom of the mounting frame.
Preferably, the filter is a Y-filter.
Preferably, the number of nozzles is plural, and the plural nozzles are arranged side by side at intervals.
(III) beneficial effects
Compared with the prior art, the utility model provides an advanced oxidation treatment device for treating and purifying eutrophic water, which has the advantages that the advanced oxidation treatment device is provided with an ozone generator, a multiphase flow dissolved air pump, a catalyst filler layer, a BDD electrolytic tank and the like, can improve the oxidation rate and oxidation effect of ozone under the synergistic effect of a BDD electrode, ozone micro-nano bubbles and catalyst adsorption catalysis, effectively inactivate algae cells and effectively degrade organic pollutants, avoids drug delivery, is environment-friendly, and saves the cost of storage, mixing, transportation and the like of medicaments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides an advanced oxidation treatment device for eutrophic water body treatment and purification, which comprises an ozone generator 1, a reaction chamber, a filter 3, a multiphase flow solution pump 4, a nozzle 5, a supporting plate 6, a supporting layer 7, a catalyst filler layer 9, a direct current power supply 13 and a BDD electrolytic tank 12, wherein a BDD electrode module 12-1 is arranged in the BDD electrolytic tank 12, and the direct current power supply 13 is connected with the BDD electrode module 12-1.
The ozone generator 1 is connected with a water inlet pipeline of the multiphase flow solution pump 4 through a gas guide pipe 2, the water inlet pipeline is connected with an inlet flange of the multiphase flow solution pump 4, the filter 3 is arranged on the water inlet pipeline, a water outlet of the multiphase flow solution pump 4 is connected with a water inlet of a reaction chamber through a pipeline, the reaction chamber is water inflow, a nozzle 5 is connected with the water inlet of the reaction chamber, and the nozzle 5, a bearing plate 6, a bearing layer 7, a catalyst filler layer 9 and a BDD electrolytic tank 12 are sequentially arranged in the reaction chamber from bottom to top.
The air source of the ozone generator 1 can be an air source, and the concentration of ozone can be adjusted and generated by changing the oxygen source or regulating and controlling the input air source. The air duct 2 is a hose, and is preferably made of silica gel. In addition, the multiphase flow dissolved air pump 4 can be connected in series in multiple stages according to the water treatment amount requirement. The anode of the BDD electrode module 12-1 is boron-doped diamond (boron-doped d i amond, BDD), the cathode type can be conventionally configured, and a titanium electrode, a platinum electrode, a stainless steel electrode and the like can be selected, a plurality of BDD electrode modules 12-1 can be connected in series according to the water treatment amount requirement, and the current density is 20mA/cm 2~38mA/cm2. The ozone generator 1, the multiphase flow gas pump 4, the BDD electrode module 12-1 and the like are all in the prior art, and are not described in detail herein.
The filter 3 can be a Y-shaped filter, the Y-shaped filter can be arranged at the middle position of a water inlet pipeline, the shell materials of the Y-shaped filter can be selected from A3, 304L, 316L, WCB and the like, and the filtering precision of the Y-shaped filter can be selected from 18-30 meshes/cm 2. In addition, the number of the nozzles 5 is a plurality, the plurality of the nozzles 5 are arranged side by side at intervals, the nozzles 5 are used for realizing gas and liquid injection, and the nozzles 5 can be specifically existing nozzle devices such as synergistic nozzles and the like, and are not limited in any way.
The bearing plate 6 has proper bearing strength and corrosion resistance, and the pore diameter of the bearing plate 6 can be 2-3mm. The support layer 7 is used for supporting the catalyst packing layer 9, and the support layer 7 is preferably composed of 10-20mm pebbles. The catalyst packing layer 9 may be a catalyst of the prior art such as granular activated carbon or metal oxide (Al 2O3、TiO2、MnO2).
Preferably, the utility model also comprises a stainless steel filter screen 11, wherein the stainless steel filter screen 11 is arranged between the catalyst filler layer 9 and the BDD electrolytic tank 12, the diameter of the stainless steel filter screen 11 is smaller than that of the catalyst, and the stainless steel filter screen 11 can prevent the catalyst of the catalyst filler layer 9 from blocking the BDD electrode module 12-1. In addition, the two sides of the reaction chamber are provided with a loading port 10 and a discharging port 8 corresponding to the catalyst packing layer 9, and it is understood that the loading port 10 and the discharging port 8 are respectively used for loading and discharging the catalyst packing layer 9, and the loading port 10 and the discharging port 8 are both in a blocking state during operation, preferably, the loading port 10 and the discharging port 8 are both obliquely arranged so as to be convenient for replacing and loading the catalyst, and the catalyst can be replaced through the discharging port 8 and the loading port 10 under the state of stopping operation.
Preferably, the utility model further comprises a multi-channel jet aerator 15, the water outlet of the reaction chamber is connected with the multi-channel jet aerator 15 through a pipeline, and the multi-channel jet aerator 15 can be placed in a water body.
In addition, the utility model can also preferably comprise a mounting frame, wherein the ozone generator 1, the multiphase flow solution pump 4 and the reaction chamber are all arranged on the mounting frame so as to realize the integration of the equipment main body of the utility model, and the bottom of the mounting frame is provided with a universal wheel 16 so as to be convenient for movement, and the utility model can be provided with an electric cabinet.
It can be understood that the utility model integrates ozone and electrochemical oxidation, filler adsorption catalysis and ozone disinfection, can effectively remove algae, algae toxin, ammonia nitrogen, total organic carbon and other pollutants in water, better improves various water quality sensory indexes such as chromaticity, smell and taste and improves water quality, and can be applied to advanced treatment of drinking water and the like.
Ozone has the algae removal effect, ozone oxidation can lead algae cells to be broken so as to lose physiological activity, so that the algae removal purpose is achieved, and ozone nano bubbles generated by the multiphase flow dissolved air pump have larger specific surface area and higher mass transfer efficiency, and can be more effectively contacted with algae in a water body and react to enhance the ozone oxidation capability. The rupture of the algae cells can release a large amount of intracellular organic matters, and the organic matters such as algae toxins and the like are released while the algae cells are inactivated. The catalyst filler layer 9 has the main functions of adsorption and activation, when raw water contacts with the catalyst, organic pollutants are adsorbed on the surface of the catalyst to form a surface chelate with affinity, so that ozone oxidation is more efficient, the catalyst can effectively catalyze and activate ozone molecules, and free radicals are generated by decomposition, so that ozone oxidation efficiency is improved. The utility model realizes that the combined action of the ozone nanobubbles and the BDD electrode enhances the degradation capability of the organic pollutants, and the ozone nanobubbles have sterilization effect, can reduce the attached biomass on the catalyst, prolong the service cycle of the catalyst and reduce the frequency of replacing the catalyst filler layer 9.
The advanced oxidation treatment device for treating and purifying the eutrophic water body comprises the working processes that (1) a multiphase flow dissolved air pump 4 pumps water and pumps air, ozone prepared by an ozone generator 1 enters a water inlet pipeline through an air guide pipe 2 through an air outlet, meanwhile, the eutrophic water body to be treated sequentially passes through a Y-shaped filter 3 and the water inlet pipeline, impurities in the water are filtered and then pumped into the multiphase flow dissolved air pump 4, the ozone air inflow can be determined according to specific water quality, water quantity and other conditions, the ratio range of the ozone micro-nano bubble air inflow to the raw water inflow can be 1:7-1:8, the gas-liquid two phases are pressurized and mixed in a pump cavity of the multiphase flow dissolved air pump 4 and fully dissolved to generate saturated dissolved air water, the ozone micro-nano bubble water is generated after pressure release, and is discharged into a reaction chamber through a pipeline and released through a nozzle 5. (2) The water flow direction is upward, and flows through the bearing plate 6, the bearing layer 7 and the catalyst filler layer 9in sequence to be contacted with the BDD electrode module 12-1. The released ozone micro-nano bubbles are broken to generate a large amount of hydroxyl free radicals which are fully contacted with raw water to kill algae, upward flow can ensure that a catalyst is suspended to fully contact with water, the catalyst of the catalyst filler layer 9 further adsorbs organic pollutants generated by algae cell breakage to the surface to catalyze ozone to generate free radicals to oxidize the organic pollutants, and meanwhile, water to be treated is fully contacted with the BDD electrode module 12-1 in the BDD electrolytic tank 12 to be oxidized, and the BDD electrode module 12-1 is electrolyzed to generate a large amount of free radicals, so that the pollutant oxidation efficiency is improved, and the pollutants are efficiently degraded. (3) The treated water can be connected with a multi-channel jet aerator 15 through a water outlet 14 and a pipeline to release unconsumed ozone, and meanwhile, the treated water plays a role in mixing and stirring and continuously plays a role in untreated water.
It can be understood that algae cell rupture can produce algae toxin and algae toxin can produce great toxic action in the eutrophication water treatment process, and in this regard, the ozone micro-nano bubble-BDD electrode process adopted by the utility model integrates ozone and electrochemical oxidation, ozone disinfection, can effectively inactivate algae, remove algae toxin, ammonia nitrogen, total organic carbon and other pollutants, improve a plurality of water quality sensory indexes such as chromaticity, smell and taste, and improve water quality, and can be applied to water quality purification advanced treatment. In addition, according to different water quality treatment requirements, the efficiency of removing algae and organic pollutants in the water body can be regulated and controlled by regulating the concentration of generated ozone and BDD current density.
Compared with the prior art, the utility model provides an advanced oxidation treatment device for treating and purifying eutrophic water, which has the advantages that (1) an ozone generator, a multiphase flow solution pump, a catalyst filler layer, a BDD electrolytic tank and the like are arranged, so that the oxidation rate and oxidation effect of ozone can be improved, algae cells can be effectively inactivated and organic pollutants can be effectively degraded under the synergistic effect of BDD electrodes, ozone micro-nano bubbles and catalyst adsorption catalysis, the medicine is avoided from being put in, the environment is friendly, the cost of medicine storage, mixing, transportation and the like is saved, the treatment effect can be flexibly controlled by adjusting the parameters such as current density, ozone concentration and the like, and the treatment requirement under different water quality conditions can be better met (4) the integrated equipment has the characteristics of small volume, simplicity and convenience in operation, easiness in moving and the like.
It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.