CN209890463U - Intelligent modularized integrated sewage treatment system - Google Patents
Intelligent modularized integrated sewage treatment system Download PDFInfo
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- CN209890463U CN209890463U CN201920586497.8U CN201920586497U CN209890463U CN 209890463 U CN209890463 U CN 209890463U CN 201920586497 U CN201920586497 U CN 201920586497U CN 209890463 U CN209890463 U CN 209890463U
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Abstract
The utility model discloses an intelligent modularized integrated sewage treatment system, which comprises a circulating fine grid device, a buffer tank, a microfiltration device, an integrated treatment device, a clean water tank and a sludge tank; the integrated treatment equipment comprises a primary sedimentation tank, an AAOO treatment unit and an MBR membrane tank unit, wherein the AAOO treatment unit comprises two anoxic tanks and two aerobic tanks, a hollow fiber curtain type membrane assembly is arranged in the MBR membrane tank unit, the aerobic tanks are connected with a first air blower, a reflux pump is arranged in an integrated tank formed by the aerobic tanks and the MBR membrane tank unit, and the reflux pump is communicated with the anoxic tanks; the MBR membrane pool unit is connected with a backwashing pump through a pipeline, the backwashing pump is connected with a clean water tank, the MBR membrane pool unit is connected with a second air blower, and air flow provided by the second air blower cleans the hollow fiber curtain type membrane assembly through air. The utility model provides the high treatment effect to sewage, degree of automation is high, goes out water stable in quality of water, and the dosage is few, and system's working costs is low, moves safe and reliable, satisfies sewage treatment's high requirement.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, concretely relates to integrated sewage treatment system of intelligent module ization.
Background
With the development of industrial and agricultural production, the water environment problem becomes more and more serious, the amount of sewage is increasing, a large amount of organic matters in the sewage contain various viruses, bacteria, parasitic ova and the like, and chlorides, sulfates, phosphates and the like of inorganic salts in the sewage, which are harmful to human bodies and various animals and plants, so that the harmless treatment is needed. In the face of increasing sewage quantity, the existing sewage treatment plant can not meet the current sewage treatment requirement, and the period of a newly-built conventional sewage treatment plant is longer. In addition, the existing sewage treatment plant has poor treatment effect of the sewage treatment method, contains a large amount of untreated suspended matters, byproducts and the like, has unstable effluent quality, high sludge production, low nitrogen and phosphorus removal efficiency, large dosage and high operating cost, and can not meet the sewage treatment requirement.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an object of the utility model is to provide an integrated sewage treatment system of intelligent module ization has improved the treatment effect to sewage, and degree of automation is high, goes out water stable in quality of water, and it is few to throw the dose, and system's working costs is low, and operation safe and reliable satisfies sewage treatment's high requirement.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes: an intelligent modularized integrated sewage treatment system comprises a circulating fine grid device, a buffer tank, a microfiltration device, integrated treatment equipment, a clean water tank and a sludge tank;
the circulating fine grid device is internally provided with a grid for intercepting impurities in the sewage, the sewage treated by the circulating fine grid device enters a buffer pool, and a pre-aeration system for oxygenating and stirring is arranged in the buffer pool; a submersible pump is arranged between the buffer tank and the microfiltration device;
the integrated treatment equipment comprises a primary sedimentation tank, an AAOO treatment unit and an MBR membrane tank unit, wherein the primary sedimentation tank is connected with a water outlet of a microfiltration device, the primary sedimentation tank is a micro-vortex flocculation sedimentation tank, the AAOO treatment unit comprises two anoxic tanks and two aerobic tanks, the two anoxic tanks and the two aerobic tanks are connected in series, a facultative biological strain is added into the aerobic tanks and the anoxic tanks, microporous aerators are arranged in the aerobic tanks, hollow fiber curtain type membrane assemblies are arranged in the MBR membrane tank unit, and the aerobic tanks and the MBR membrane tank unit form an integrated tank; the aerobic tank is connected with a first air blower, the first air blower supplies oxygen to the aerobic tank, a reflux pump is arranged in an integrated tank formed by the aerobic tank and the MBR membrane tank unit, and the reflux pump is communicated with the anoxic tank through a pipeline;
the anoxic tank and the MBR membrane tank unit are respectively provided with an air lifting device, the air lifting device is connected with a first air blower, and a sludge discharge pipe of the air lifting device is connected with the sludge tank;
the water outlet of the MBR membrane pool unit is connected with a self-priming pump through a pipeline, the self-priming pump is connected with an ultraviolet disinfection device, the MBR membrane pool unit is also connected with a backwashing pump through a pipeline, the backwashing pump is connected with a clean water tank through a pipeline, the bottom of a hollow fiber curtain type membrane assembly in the MBR membrane pool unit is connected with a second air blower through a pipeline, and air flow provided by the second air blower cleans the hollow fiber curtain type membrane assembly through air.
Furthermore, a slag removing structure for removing impurities intercepted by the grating is also arranged in the circulating fine grating device.
Further, be equipped with dive mixer in the oxygen deficiency pond, this dive mixer sets up on a slide bar support, and this dive mixer can the oscilaltion.
Furthermore, the aerobic tank is connected with a phosphorus removal dosing device through a phosphorus removal agent circulation pipeline, the phosphorus removal dosing device comprises a phosphorus removal agent tank, a dosing stirrer and a phosphorus removal agent metering pump, and the dosing stirrer is arranged in the phosphorus removal agent tank.
Further, the MBR membrane tank unit is connected with a membrane washing and dosing device through a pipeline, and the membrane washing and dosing device comprises a membrane washing agent tank and a membrane washing agent metering pump.
Further, all be equipped with the level gauge in MBR membrane cisterna unit and the clean water basin, the level gauge is connected with PLC the signal input part of control unit, and PLC the signal output part of control unit is connected with MBR membrane cisterna unit, self priming pump and backwash pump.
Furthermore, the sludge tank is connected with a dehydrator through a sludge delivery pump.
The utility model has the advantages that:
(1) the utility model discloses an intelligent modularized integrated combination, with various processing apparatus and mode quick integration, quick combination, concrete fine grid filtration that has adopted, the buffer pool effect, the micro-filtration device filters, AAOO + MBR membrane technology (the oxygen deficiency treatment and the oxygen deficiency denitrification treatment in oxygen deficiency pond, the aerobic treatment in aerobic pond and the membrane filtration and the aerobic treatment of MBR membrane pond unit), ultraviolet ray disinfection device, and utilize PLC the control unit to control, accomplish the processing procedure to sewage, the effectual suspended solid that contains in the sewage of having got rid of, organic matter and phosphorus class, nitrogen class, ammonia nitrogen class pollutant etc., the treatment effect is good, it is high and stable to go out water quality, the mud production volume is few, pollutant removal efficiency is high, degree of automation is high, the required dosage is little in the processing procedure, the working costs is low, can satisfy sewage treatment's high requirement;
(2) the pre-aeration system is added in the buffer tank of the utility model, and is used for oxygenation and stirring to prevent suspended particles in the sewage from precipitating and smelling, and plays a certain degradation effect on organic matters in the sewage, thus improving the shock resistance and treatment effect of the whole system;
(3) the utility model provides a MBR membrane cisterna unit passes through the backwash pump and is connected with the clean water basin, utilizes the water that stores in the clean water basin after purification treatment to carry out the water backwash to the membrane module in the MBR membrane cisterna unit, and the second air-blower then blows in the air through the pipeline to the membrane module bottom in the MBR membrane cisterna unit, and the air gets into in the membrane module to carry out the air to the membrane module and clean, thereby, the utility model discloses utilize water backwash and air to clean the combination to realize better and more efficient washing to the membrane module, can save the water resource again, slow down the formation of filter cake, the interval time that the extension medicine was washed reduces the cost of using medicine.
(4) The MBR membrane tank unit in the utility model has stable operation, long cleaning period, low energy consumption of water production, no need of adding coagulant, coagulant aid and other chemical agents, and reduced operation cost; the sludge concentration in the membrane tank is high, the impact resistance is good, the occupied area is small, and the effluent quality is good;
(5) facultative biological strains added into the aerobic tank and the anoxic tank are special high-efficiency strains, the biochemical reaction time can be shortened, the biochemical effect is improved, the removal efficiency of total phosphorus and total nitrogen is higher, and the total nitrogen of effluent can be reduced to 1.0 mg/L; the special facultative biological strain has low sludge production, is inoculated for one time, can be supplemented and added in proper amount subsequently according to the treatment effect, has a breeding generation period of 3-4 hours, and has good effect on sewage treatment;
(6) the sludge precipitated in the anoxic tank and the MBR membrane tank unit is lifted to the sludge tank through the air lifting device, and the first air blower provides a lifting air source for the air lifting device; the air lifting device uses high-pressure air as power to lift sludge, does not consume electric energy, and has good reliability and high lifting efficiency;
(7) the sewage treatment system of the utility model has simple sewage treatment process, short system construction period and convenient operation, can be used as a temporary treatment facility, saves land, has the whole sewage treatment process time of 30 percent of the process of the conventional sewage treatment plant, and has the occupied area of 30 percent of the process of the conventional sewage treatment plant; the whole system is flexible to operate, can normally operate under 50-110% of load, is stable in operation, safe, reliable, energy-saving, and can continuously operate for a long period.
Drawings
FIG. 1 is a schematic diagram of the intelligent modular integrated sewage treatment system of the present invention.
FIG. 2 is a schematic view of the flow of the intelligent modular integrated sewage treatment system when used for treating sewage.
Detailed Description
The following detailed description of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
As shown in fig. 1 and fig. 2, the utility model discloses an embodiment's an integrated sewage treatment system of intelligent module ization, including circulating thin grid device, buffer pool, micro-filtration device, integrated treatment facility, clean water basin and sludge impoundment.
The circulating fine grid device is provided with a grid for intercepting impurities in the sewage and a slag removing structure for cleaning the impurities intercepted by the grid, the sewage treated by the circulating grid device enters a buffer tank, and a pre-aeration system for oxygenating and stirring is arranged in the buffer tank; a submersible pump is arranged between the buffer tank and the microfiltration device 1.
The integrated treatment equipment comprises a primary sedimentation tank, an AAOO treatment unit and an MBR membrane tank unit, wherein the primary sedimentation tank is connected with a water outlet of a microfiltration device 1, the primary sedimentation tank is a micro-vortex flocculation sedimentation tank, the sedimentation mode adopts inclined tube sedimentation, the AAOO treatment unit comprises two anoxic tanks 2 and two aerobic tanks 3, the two anoxic tanks 2 and the two aerobic tanks 3 are connected in series, facultative biological strains are added into the aerobic tanks 3 and the anoxic tanks 2, a microporous aerator 4 is arranged in the aerobic tanks 3, hollow fiber membrane modules are arranged in the MBR membrane tank unit 5, and the aerobic tanks 3 and the MBR membrane tank unit 5 form an integrated tank; the aerobic tank 3 is connected with a first air blower 6, the first air blower 6 supplies oxygen for the aerobic tank 3, a reflux pump 8 is arranged in an integrated tank formed by the aerobic tank 3 and the MBR membrane tank unit 5, and the reflux pump 8 is communicated with the anoxic tank 2 through a pipeline.
The facultative biological strains added into the aerobic tank and the anoxic tank are special strains, the domestic sewage adding amount is one ten thousandth of the volume of the biochemical tank, the industrial wastewater is added according to one thousandth of the volume of the biochemical tank, namely the volume of the tank of 1 ten thousand cubic meters, and the special strains of 1 ton of water agent are added. The special strain is added into an anoxic tank and an aerobic tank, so that the removal efficiency of total phosphorus and total nitrogen is high, and the total nitrogen of effluent can be reduced to 1.0 mg/L; the special strain has low sludge yield, is inoculated once, can be supplemented and added in proper amount subsequently according to the treatment effect, has a breeding generation period of 3-4 hours, is particularly suitable for filler biofilm formation growth, and can also be attached to activated sludge particle growth.
The anoxic tank 2 and the MBR membrane tank unit 5 are respectively provided with an air lifting device 9, the air lifting device 9 is connected with a first air blower 6, and a sludge discharge pipe of the air lifting device 9 is connected with the sludge tank 10.
The water outlet of the MBR membrane pool unit 5 is connected with a self-priming pump 11 through a pipeline, the self-priming pump 11 is connected with an ultraviolet disinfection device 12, the MBR membrane pool unit 5 is further connected with a backwashing pump 13 through a pipeline, the backwashing pump 13 is connected with a clean water tank 14 through a pipeline, the bottom of a hollow fiber curtain type membrane assembly in the MBR membrane pool unit 5 is connected with a second air blower 7 through a pipeline, and air flow provided by the second air blower 7 cleans the hollow fiber curtain type membrane assembly through air.
The hollow fiber membrane wire of the hollow fiber curtain type membrane component adopts a PET woven net pipe as an inner liner, is embedded into the inner wall of the membrane wire and is firmly compounded with a PVDF functional layer, and the membrane wire has extremely strong water permeability due to the permanently hydrophilized modified PVDF material and the membrane structure with large porosity; the permeable flow channel with large through holes in the membrane component and the skin-free structure of the inner wall of the membrane greatly reduce the interception of pollutants in the membrane filaments and improve the permanent pollution resistance; the membrane filaments on the membrane component are equal in length, parallel and have the same projection point, the cross winding is less, the gas-water mixed scrubbing is facilitated, and the surface pollution resistance of the filter membrane is improved under the condition of the same gas-water ratio.
Further, a submersible mixer 15 is arranged in the anoxic pond 2, the submersible mixer 15 is arranged on a sliding rod support, and the submersible mixer can be lifted up and down. The submersible mixer is used for stirring water flow in the anoxic pond 2, promotes the mixed reaction of sewage and microorganisms, prevents solid particle deposition, can ascend and descend, is convenient to move, and does not need personnel to enter a wet well for inspection or maintenance. The whole weight of the submersible mixer is stressed on the sliding rod bracket, and the sliding rod bracket can bear the thrust formed by the mixer; the submersible mixer 15 should have components, including a motor, that can be operated continuously under water.
Further, the aerobic tank 3 is connected with a phosphorus removal and dosing device through a phosphorus removal agent circulation pipeline, the phosphorus removal and dosing device comprises a phosphorus removal agent tank 16, a dosing stirrer 17 and a phosphorus removal agent metering pump, and the dosing stirrer 17 is arranged in the phosphorus removal agent tank 16.
Further, the MBR membrane tank unit 5 is connected with a membrane washing and feeding device through a pipeline, and the membrane washing and feeding device comprises a membrane washing agent tank 18 and a membrane washing agent metering pump.
Further, all be equipped with level gauge 19 in MBR membrane cisterna unit 5 and the clean water basin 14, level gauge 19 is connected with PLC the signal input part of control unit, and PLC the signal output part of control unit is connected with MBR membrane cisterna unit 5, self priming pump 11 and backwash pump 13. And the PLC control unit controls the operation of the MBR membrane pool unit, the self-priming pump, the backwashing pump and the like according to signals of the liquid level meter.
Further, the sludge tank 10 is connected with a dewatering machine through a sludge delivery pump, and the dewatering machine is used for dewatering and drying the sludge.
The method for treating sewage by using the intelligent modular integrated sewage treatment system comprises the following steps:
(1) sewage firstly passes through a circulating fine grid device to intercept and remove large solid garbage in the sewage, then the sewage enters a buffer tank, the buffer tank adjusts the water quantity and the water quality of the sewage, the balance and the stability of the water quantity and the water quality during subsequent biochemical treatment are ensured, a pre-aeration system is arranged for oxygenating and stirring, so that the phenomenon that suspended particles in the sewage are precipitated to cause odor is prevented, a certain degradation effect is achieved on organic matters in the sewage, and the impact resistance and the treatment effect of the whole system are improved. The sewage treated by the buffer tank is lifted to a microfiltration device 1 by a submersible pump, and larger particle suspended matters and waste residues in the sewage are removed through a filter screen of the microfiltration device 1;
(2) the sewage treated by the microfiltration device 1 enters a primary sedimentation tank in the integrated treatment equipment, and flocculating agents PAC and PAM are added into the primary sedimentation tank to lead the colloid and the fine suspended matters in the sewage to be gathered into flocculating constituents and settled; after passing through a fine grid, a buffer tank, a microfiltration device and a primary sedimentation tank, suspended solids, COD and total phosphorus in the sewage are partially removed, so that the organic load of subsequent treatment is reduced, and the hydraulic retention time in the subsequent biochemical treatment is greatly reduced;
the sewage treated by the primary sedimentation tank enters an anoxic tank 2 in an AAOO treatment unit, and the Dissolved Oxygen (DO) in the anoxic tank 2 is not more than 0.5 mg/L; in the anoxic pond 2, heterotrophic bacteria hydrolyze suspended pollutants such as starch, fiber, carbohydrate and the like and soluble organic matters in the sewage into organic acid, so that macromolecular organic matters are decomposed into micromolecular organic matters, and insoluble organic matters are converted into soluble organic matters; meanwhile, heterotrophic bacteria ammoniate contaminants such as proteins and fats (N in the organic chain or amino groups in amino acids) to release ammonia (NH)3、NH4+) (ii) a The sewage after the anoxic treatment enters an aerobic tank 3, under the action of a first air blower 6, a microporous aerator 4 in the aerobic tank 3 performs oxygenation stirring on the sewage, DO (DO) in the aerobic tank is 2-4 mg/L, organic matters in the sewage are purified under the action of microorganisms, and meanwhile, NH is purified by nitrification of autotrophic bacteria3Or NH4+Oxidation to NO3-Then the NO is reacted by the denitrification of the heterotrophic bacteria under the anoxic condition through the reflux to the anoxic tank 23-Reduced to molecular nitrogen (N)2) C, N, O, completing the ecological cycle, and realizing the harmless treatment of sewage; the sewage after the AAOO biochemical treatment enters an MBR membrane tank unit 5, the sewage entering the MBR membrane tank unit 5 is further denitrified by the nitrification of nitrifying bacteria, meanwhile, aerobic microorganisms oxidize and decompose organic matters through endogenous respiration to achieve the aim of reducing COD, and a hollow fiber curtain type membrane assembly is used for filtering the sewage to further remove SS, escherichia coli and the like; in addition, sewage in the MBR membrane tank unit can flow back to the anoxic tank to enterCarrying out denitrification reaction;
(3) a part of the sewage treated by the MBR membrane tank unit 5 enters a clean water tank for storage, and a part of the sewage is disinfected by an ultraviolet disinfection device 12 and then is discharged after reaching the standard;
(4) water stored in the clean water tank 14 enters the MBR membrane tank unit 5 through a backwashing pump 13 to perform backwashing on the hollow fiber curtain type membrane module, and the second air blower 7 provides air flow which performs air scrubbing on the hollow fiber curtain type membrane module;
(5) the settled sludge is lifted to a sludge pool 10 by a gas stripping device 9, a first air blower 6 provides a lifting gas source for the gas stripping device 9, and the sludge in the sludge pool 10 is periodically sucked and transported by a dung suction truck.
Further, in the treatment process of the aerobic tank 3, a phosphorus removal agent is input into the aerobic tank 3 by the phosphorus removal agent adding device to assist the phosphorus removal reaction in the aerobic tank 3 so as to carry out deep phosphorus removal.
Further, when the MBR membrane tank unit 5 is cleaned, a membrane cleaning agent adding device is used for adding membrane cleaning agent into the MBR membrane tank unit 5 so as to periodically perform drug cleaning on the membrane module.
The utility model discloses a sewage treatment system can set up in steel shell structure, and the outer wall of shell carries out the colored drawing and beautifies, coordinates with the surrounding environment mutually. The sewage treatment system of the utility model has simple process flow, short construction period and convenient operation; the system can be used as a temporary treatment facility, so that the land is saved, the time of the whole sewage treatment process is 30 percent of that of the conventional sewage treatment plant, and the occupied area is also 30 percent of that of the conventional sewage treatment plant; the system can normally run under 50-110% load, is stable in operation, safe, reliable, energy-saving and can continuously run for a long period; the whole system has high automation degree, stable effluent quality, capability of realizing standard discharge, less dosage and low operating cost.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (7)
1. The utility model provides an integrated sewage treatment system of intelligent module ization which characterized in that: comprises a circulating fine grid device, a buffer tank, a microfiltration device, integrated treatment equipment, a clean water tank and a sludge tank;
the circulating fine grid device is internally provided with a grid for intercepting impurities in the sewage, the sewage treated by the circulating fine grid device enters a buffer pool, and a pre-aeration system for oxygenating and stirring is arranged in the buffer pool; a submersible pump is arranged between the buffer tank and the microfiltration device;
the integrated treatment equipment comprises a primary sedimentation tank, an AAOO treatment unit and an MBR membrane tank unit, wherein the primary sedimentation tank is connected with a water outlet of a microfiltration device, the primary sedimentation tank is a micro-vortex flocculation sedimentation tank, the AAOO treatment unit comprises two anoxic tanks and two aerobic tanks, the two anoxic tanks and the two aerobic tanks are connected in series, a facultative biological strain is added into the aerobic tanks and the anoxic tanks, microporous aerators are arranged in the aerobic tanks, hollow fiber curtain type membrane assemblies are arranged in the MBR membrane tank unit, and the aerobic tanks and the MBR membrane tank unit form an integrated tank; the aerobic tank is connected with a first air blower, the first air blower supplies oxygen to the aerobic tank, a reflux pump is arranged in an integrated tank formed by the aerobic tank and the MBR membrane tank unit, and the reflux pump is communicated with the anoxic tank through a pipeline;
the anoxic tank and the MBR membrane tank unit are respectively provided with an air lifting device, the air lifting device is connected with the first air blower, and a sludge discharge pipe of the air lifting device is connected with the sludge tank;
the water outlet of the MBR membrane pool unit is connected with a self-priming pump through a pipeline, the self-priming pump is connected with an ultraviolet disinfection device, the MBR membrane pool unit is also connected with a backwashing pump through a pipeline, the backwashing pump is connected with a clean water tank through a pipeline, the bottom of a hollow fiber curtain type membrane assembly in the MBR membrane pool unit is connected with a second air blower through a pipeline, and air flow provided by the second air blower cleans the hollow fiber curtain type membrane assembly through air.
2. The intelligent modular integrated sewage treatment system according to claim 1, wherein: and the circulating fine grid device is also provided with a slag removing structure for removing impurities intercepted by the grid.
3. The intelligent modular integrated sewage treatment system according to claim 1, wherein: be equipped with dive mixer in the oxygen deficiency pond, this dive mixer sets up on a slide bar support, and this dive mixer can the oscilaltion.
4. The intelligent modular integrated sewage treatment system according to claim 1, wherein: the aerobic tank is connected with a phosphorus removal dosing device through a phosphorus removal agent circulation pipeline, the phosphorus removal dosing device comprises a phosphorus removal agent tank, a dosing stirrer and a phosphorus removal agent metering pump, and the dosing stirrer is arranged in the phosphorus removal agent tank.
5. The intelligent modular integrated sewage treatment system according to claim 1, wherein: the MBR membrane tank unit is connected with a membrane washing and dosing device through a pipeline, and the membrane washing and dosing device comprises a membrane washing agent tank and a membrane washing agent metering pump.
6. The intelligent modular integrated sewage treatment system according to claim 1, wherein: all be equipped with the level gauge in MBR membrane cisterna unit and the clean water basin, the level gauge is connected with PLC the control unit's signal input part, and PLC the control unit's signal output part is connected with MBR membrane cisterna unit, self priming pump and backwash pump.
7. The intelligent modular integrated sewage treatment system according to claim 1, wherein: the sludge tank is connected with a dehydrator through a sludge delivery pump.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109879556A (en) * | 2019-04-26 | 2019-06-14 | 江苏泰源环保科技股份有限公司 | A kind of intelligent modularized integrated sewage processing system and sewage water treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109879556A (en) * | 2019-04-26 | 2019-06-14 | 江苏泰源环保科技股份有限公司 | A kind of intelligent modularized integrated sewage processing system and sewage water treatment method |
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