Membrane reactor equipment for treating tanning wastewater
Technical Field
The utility model relates to the technical field of tanning wastewater treatment, in particular to membrane reactor equipment for treating tanning wastewater.
Background
Tanning waste water refers to waste water produced during the preparation and tanning stages of tanning production, i.e. during wet operation. The waste water of the tannery has large discharge amount, high pH value, high chromaticity and various pollution types and complex components. The main pollutants include heavy metal chromium, soluble proteins, dander, suspended matters, tannins, lignin, inorganic salts, oils, surfactants, dyes, resins, etc.
At present, the wastewater is treated by adopting a traditional coagulating sedimentation and activated sludge method, so that the conventional treatment process is easy to insufficiently treat grease in the wastewater in the treatment process, the load is increased for subsequent wastewater treatment, the quality of wastewater treatment is affected, and meanwhile, the secondary pollution is caused by sludge leakage caused by environmental fluctuation in the conventional secondary sedimentation tank.
Disclosure of utility model
In order to make up for the defects, the utility model provides a membrane reactor device for treating tannery wastewater, which aims to solve the problems that the conventional coagulating sedimentation and activated sludge method are adopted to treat wastewater in the prior art, so that grease in the wastewater is easily insufficiently treated in the treatment process by the conventional treatment process, the load is increased for subsequent wastewater treatment, the quality of wastewater treatment is affected, and secondary pollution is caused by sludge leakage caused by environmental fluctuation in the conventional secondary sedimentation tank.
The utility model is realized in the following way:
The utility model provides membrane reactor equipment for treating tannery wastewater, which comprises a micro-filter, a first treatment structure and a second treatment structure, wherein the first treatment structure is communicated with the micro-filter, and the second treatment structure is communicated with the first treatment structure.
The first treatment structure comprises a first treatment tank, a medicament throwing part, an agitating part, an air floatation part and a separating part, wherein the output end of the micro-filter is communicated with the first treatment tank through a connecting pipeline, a coagulation area, an aeration area and a separating area are formed in the first treatment tank through a first partition plate and a second partition plate, the coagulation area is communicated with the bottom of the aeration area, the medicament throwing part and the agitating part are installed in the coagulation area, the air floatation part is installed in the aeration area, the separating part is installed in the separating area, a sludge tank is fixed in the separating area, one side of the sludge tank is communicated with a sewage drain pipe, the second treatment structure comprises a second treatment tank, a buffer part, a secondary filter part and a transferring part, a hydrolytic acidification area and a filter area are formed in the second treatment tank through a third partition plate, the buffer part is installed between the second treatment tank and the first treatment tank, the secondary filter part is installed in the filter area, and the transferring part is installed between the hydrolytic acidification area and the filter area, and one side of the filter area is fixedly communicated with a drain pipe.
In one embodiment of the utility model, the medicine delivery part comprises a medicine pump, a main medicine pipe and a medicine liquid box, wherein the medicine pump and the medicine liquid box are arranged on one side of the first treatment tank, the main medicine pipe is communicated and fixed at the upper end of the coagulation area, the medicine pump is communicated with the main medicine pipe through a medicine inlet pipe, a spray head is arranged at the bottom of the main medicine pipe, three medicine liquid grooves are formed in the medicine liquid box, the liquid inlet end of the medicine pump is communicated with a four-way pipe, the four-way pipe extends into the medicine liquid groove, and three pipelines of the four-way pipe are provided with control valves.
In one embodiment of the utility model, the stirring piece comprises a first transverse plate and two rotating rods, wherein the first transverse plate is fixed in the coagulation area, the two rotating rods are rotatably connected to the first transverse plate, a first servo motor is installed at the end part of one rotating rod, stirring blades are fixed on the rotating rod, and the two rotating rods are in transmission connection through a transmission part.
In one embodiment of the utility model, the transmission part comprises two transmission wheels, the two transmission wheels are respectively connected to the two rotating rods in a key way, and the transmission wheels are in transmission connection through a transmission chain.
In one embodiment of the utility model, the air floatation member comprises a second transverse plate and an aerator, wherein the second transverse plate is fixed in the aeration zone, two hollow pipes are fixedly penetrated on the second transverse plate, one ends of the hollow pipes are communicated with a main air pipe, the other ends of the hollow pipes are provided with aeration discs, the aerator is arranged on the side surface of the first treatment tank, and the aerator is communicated with the main air pipe through an air pipe.
In one embodiment of the utility model, the separating piece comprises a second servo motor and two shaft rollers, the two shaft rollers are rotatably connected to the separating area, the second servo motor is arranged on one side of the first treatment tank and is fixed with one shaft roller, the two shaft rollers are sleeved with a conveying belt, and scraping plates are uniformly fixed on the conveying belt.
In one embodiment of the present utility model, the buffer member includes a buffer tank and a liquid outlet pipe, the buffer tank is connected to the first treatment tank through a connection block, the buffer tank is connected to the separation zone through a connection pipe, and the buffer tank is connected to the hydrolytic acidification zone through the liquid outlet pipe.
In one embodiment of the utility model, the secondary filter comprises an aeration device mounted in the filtration zone and an MBR membrane module mounted above the aeration device.
In one embodiment of the present utility model, the transfer member comprises a liquid pump, wherein a liquid inlet end of the liquid pump is communicated with the hydrolysis acidification zone through a liquid inlet pipe, and a liquid outlet end of the liquid pump is communicated with the filtration zone through a liquid outlet pipe.
The membrane reactor equipment for treating the tanning wastewater has the beneficial effects that when the membrane reactor equipment is used, the tanning wastewater is firstly subjected to hair and fibrous substances removal by the micro-filter and then enters the first water treatment tank through the connecting pipeline, at the moment, the medicament is thrown into the wastewater through the medicament throwing part and is further mixed with the wastewater along with stirring of the stirring part, so that the liquid medicament can be sprayed and mixed more uniformly, flocculation is more various and more sufficient, at the moment, the wastewater enters the aeration area from the bottom of the first partition board, at the moment, the air floatation part generates micro bubbles, flocs float on the surface of the wastewater, then enters the separation area through the second partition board, then the floating flocs are scraped into the sludge tank by the separation part for solid-liquid separation, the treated wastewater is transferred into the hydrolytic acidification area again by the buffer part for adjustment, at the moment, the wastewater is transferred into the filtration area by the transfer part, and is further filtered by the secondary filtration part and is discharged by the discharge pipe, so that the air floatation can be used for removing a large amount of grease in the wastewater, the load is reduced for subsequent treatment, and at the same time, the secondary pollution caused by the membrane treatment is reduced, and the quality of the secondary pollution is improved by the membrane treatment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a first view angle structure of a membrane reactor apparatus for treating tannery wastewater according to an embodiment of the present utility model;
Fig. 2 is a schematic view of a second view structure of a membrane reactor apparatus for treating tannery wastewater according to an embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view of a first treatment tank of a membrane reactor apparatus for treating tannery wastewater according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram of a partially exploded construction of a membrane reactor apparatus for treating tannery wastewater according to an embodiment of the present utility model;
Fig. 5 is a schematic cross-sectional view of a second treatment tank of a membrane reactor apparatus for treating tannery wastewater according to an embodiment of the present utility model.
In the drawing, 100-micro-filters, 110-connecting pipelines, 200-first treatment structures, 210-first treatment tanks, 211-coagulation areas, 212-aeration areas, 213-separation areas, 214-first separation plates, 215-second separation plates, 220-medicament delivery members, 221-medicament pumps, 222-main medicament pipes, 223-spray heads, 224-medicament boxes, 225-four-way pipes, 230-stirring members, 231-first transverse plates, 232-first servo motors, 233-rotating rods, 234-stirring blades, 235-transmission parts, 2351-transmission wheels, 2352-transmission chains, 240-air flotation members, 241-second transverse plates, 242-aeration machines, 243-main air pipes, 244-hollow pipes, 245-aeration plates, 250-separation members, 251-second servo motors, 252-shaft rollers, 253-conveying belts, 254-scraping plates, sludge tanks, 261-blow-down pipes, 300-second treatment structures, 310-second treatment tanks, 311-hydrolysis acidification areas, 312-filtering areas, 313-third separation plates, 320-filter pipes, 340-buffer storage devices, and liquid inlet/or liquid pump devices, and 331-connection pipes, and liquid inlet/or discharge pipes, and buffer storage devices.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1 to 5, the present utility model provides a membrane reactor apparatus for treating tannery wastewater, which includes a micro-filter 100, a first treatment structure 200 in communication with the micro-filter 100, and a second treatment structure 300 in communication with the first treatment structure 200.
Referring to fig. 1 to 4, the first treatment structure 200 includes a first treatment tank 210, a chemical delivery member 220, an agitation member 230, an air floating member 240 and a separation member 250, wherein an output end of the micro-filter 100 is communicated with the first treatment tank 210 through a connection pipeline 110, a coagulation region 211, an aeration region 212 and a separation region 213 are formed in the first treatment tank 210 through a first partition 214 and a second partition 215, the coagulation region 211 is communicated with a bottom of the aeration region 212, the chemical delivery member 220 and the agitation member 230 are installed in the coagulation region 211, the air floating member 240 is installed in the aeration region 212, the separation member 250 is installed in the separation region 213, a sludge tank 260 is fixed in the separation region 213, and a drain 261 is communicated with one side of the sludge tank 260.
The medicine dispensing member 220 comprises a medicine pump 221, a main medicine pipe 222 and a medicine liquid box 224, wherein the medicine pump 221 and the medicine liquid box 224 are arranged on one side of the first treatment tank 210, the main medicine pipe 222 is communicated and fixed at the upper end of the coagulation zone 211, the medicine pump 221 is communicated with the main medicine pipe 222 through a medicine inlet pipe, a spray head 223 is arranged at the bottom of the main medicine pipe 222, three medicine liquid tanks are formed in the medicine liquid box 224, the liquid inlet end of the medicine pump 221 is communicated with a four-way pipe 225, the four-way pipe 225 extends into the medicine liquid tank, a control valve is arranged on three pipelines of the four-way pipe 225, various medicines can be simultaneously mixed by utilizing the three medicine liquid tanks, and then sprayed, so that the use diversity and uniformity of the medicines are improved, and the medicine liquid dispensing member can be more uniform and full during flocculation.
The stirring unit 230 comprises a first transverse plate 231 and two rotating rods 233, the first transverse plate 231 is fixed on the coagulation area 211, the two rotating rods 233 are rotatably connected to the first transverse plate 231, a first servo motor 232 is installed at the end of one rotating rod 233, stirring blades 234 are fixed on the rotating rods 233, the two rotating rods 233 are in transmission connection through a transmission part 235, the transmission part 235 comprises two transmission wheels 2351, the two transmission wheels 2351 are respectively connected to the two rotating rods 233 in a key manner, the transmission wheels 2351 are in transmission connection through a transmission chain 2352, and the stirring unit 230 can be used for further improving the mixing uniformity and enabling flocculation to be more complete.
The air supporting piece 240 includes second diaphragm 241 and aerator 242, and second diaphragm 241 is fixed in the aeration zone 212, runs through on the second diaphragm 241 and is fixed with two hollow tube 244, and the one end intercommunication of hollow tube 244 has main trachea 243, and aeration dish 245 is installed to the other end of hollow tube 244, and aerator 242 is installed in the side of first processing tank 210, and aerator 242 communicates with main trachea 243 through the trachea, and the microbubble that utilizes aeration dish 245 to produce here wraps up the flotation. The separating member 250 includes a second servo motor 251 and two shaft rollers 252, the two shaft rollers 252 are rotatably connected to the separating area 213, the second servo motor 251 is installed at one side of the first treatment tank 210 and fixed to one shaft roller 252, a conveyor belt 253 is sleeved on the two shaft rollers 252, a scraping plate 254 is uniformly fixed on the conveyor belt 253, the shaft rollers 252 and the conveyor belt 253 are driven to rotate by the second servo motor 251, and impurities floating in the separating area 213 are scraped into the sludge tank 260 by the scraping plate 254 to perform solid-liquid separation.
Referring to fig. 1, 2 and 5, the second treatment structure 300 includes a second treatment tank 310, a buffer 320, a secondary filter 330 and a transfer member 340, a hydrolytic acidification area 311 and a filtration area 312 are formed in the second treatment tank 310 through a third partition 314, the buffer 320 is installed between the second treatment tank 310 and the first treatment tank 210, the secondary filter 330 is installed in the filtration area 312, the transfer member 340 is installed between the hydrolytic acidification area 311 and the filtration area 312, and a discharge pipe 313 is fixedly connected to one side of the filtration area 312.
The buffer 320 includes a buffer tank 321 and a drain pipe 324, the buffer tank 321 is connected with the first treatment tank 210 through a connection block 322, the buffer tank 321 is communicated with the separation area 213 through a connection pipe 323, the buffer tank 321 is communicated with the hydrolysis acidification area 311 through the drain pipe 324, and the buffer tank 321 can store sewage at the first stage and then transfer the sewage into the hydrolysis acidification area 311.
The secondary filter 330 includes an aeration device 331 and an MBR membrane assembly 332, the aeration device 331 is installed in the filtering section 312, and the MBR membrane assembly 332 is installed above the aeration device 331. The transfer member 340 includes a liquid pump 341, a liquid inlet end of the liquid pump 341 is communicated with the hydrolysis acidification zone 311 through a liquid inlet pipe 342, a liquid outlet end of the liquid pump 341 is communicated with the filtration zone 312 through a liquid outlet pipe 343, and here, the waste water in the hydrolysis acidification zone 311 is transferred into the filtration zone 312 by the transfer member 340 and is further filtered through the aeration device 331 and the MBR membrane module 332, so that the filtering sufficiency is improved.
In use, the tanning wastewater firstly enters the micro-filter 100 to remove hair and fibrous substances, then enters the first water treatment tank 210 through the connecting pipeline 110, at the moment, the medicine pump 221 conveys various medicines in the medicine liquid tank 224 to the inside of the main medicine pipe 222 through the four-way pipe 225, and is sprayed out through the spray nozzle 223, the medicines are further mixed with sewage through the stirring piece 230 when being thrown in, so that the medicine liquid spraying and mixing can be more uniform, flocculation is more various and more sufficient, at the moment, the sewage enters the aeration area 212 from the bottom of the first partition 214, at the moment, the aerator 242 works to generate micro-bubbles through the aeration disc 245, floats flocculates to the surface of the waste liquid, then enters the separation area 213 through the second partition 215, at the moment, the second servo motor 251 drives the shaft roller 252 and the conveyor 253 to rotate, at the moment, the floated flocculates are scraped into the sludge tank 260 through the scraper 254 on the conveyor 253 to be subjected to solid-liquid separation, the treated wastewater is transferred into the hydrolysis acidification area 311 again through the buffer 320 to be regulated, the sewage is transferred into the liquid pump 341 to be transferred into the sewage to the filter element 332, the sewage is further treated through the water pump 331, the sewage is discharged through the membrane 332, and the secondary pollution is reduced, and the sewage is discharged through the membrane 332 is further treated through the aeration device, and the secondary pollution is reduced, and the sewage is discharged through the membrane 332 is greatly treated, and the secondary pollution is greatly reduced, and the sewage is discharged through the sewage treatment assembly is discharged through the membrane filter assembly, and the sewage filter assembly is subjected to the sewage treatment assembly, and the sewage treatment assembly is subjected to the sewage treatment by the sewage treatment assembly, and the sewage treatment device is subjected to the sewage treatment after the sewage treatment has the sewage treatment, and the sewage treatment has the sewage treatment after the sewage treatment has more sewage treatment.
It should be noted that, specific model specifications of the micro filter 100, the drug pump 221, the first servo motor 232, the aerator 242, the second servo motor 251, the aerator 331 and the liquid pump 341 need to be determined by selecting a model according to actual specifications of the device, and a specific model selection calculation method adopts the prior art, so detailed descriptions thereof are omitted.
The power supply of the micro filter 100, the medicine pump 221, the first servo motor 232, the aerator 242, the second servo motor 251, the aerator 331 and the liquid pump 341, and the principle thereof will be apparent to those skilled in the art, and will not be described in detail herein.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.