CN218290617U

CN218290617U - Integrated nitrate nitrogen removing device

Info

Publication number: CN218290617U
Application number: CN202222828123.7U
Authority: CN
Inventors: 张继辉; 张春艳; 郝同; 谷景义; 许严严; 赵春波; 吴震
Original assignee: Beijing Mbt Environmental Protection Technology Co ltd
Current assignee: Beijing Mbt Environmental Protection Technology Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-01-13
Anticipated expiration: 2032-10-26

Abstract

The utility model discloses an integration nitrate nitrogen remove device, including intelligent water intake system, biological filter system, MBBR system, perpendicular flow sedimentation system, sludge recirculation system, intelligent charge system, autonomous system, intelligence water intake system and biological filter headtotail, biological filter system and MBBR headtotail, the MBBR system with perpendicular flow sedimentation system is connected, sludge recirculation system with perpendicular flow sedimentation system, biological filter headtotail, intelligence charge system and biological filter system, MBBR headtotail, autonomous system and intelligent water intake system, biological filter system, MBBR system, perpendicular flow sedimentation system, sludge recirculation system, intelligent charge headtotail. The utility model discloses be applied to sewage treatment, have and to realize cell-phone APP control, unmanned on duty, easy operation, equipment integrated level is high, simple to operate, engineering implement fast, running cost low, treatment effect advantage such as stable.

Description

Integrated nitrate nitrogen removing device

Technical Field

The utility model relates to a water treatment integration equipment technical field, in particular to integration nitrate nitrogen remove device.

Background

Nitrogen in nature mainly exists in the forms of ammonia nitrogen, nitrate nitrogen and organic nitrogen, water pollution is increasingly serious along with the development of industry, the nitrogen content in water is increased, a large amount of nitrate nitrogen is contained in a plurality of industrial wastewater, for example, a large amount of nitrate is used as a raw material in the manufacturing process of national defense explosives, nitrate is used as an oxidant in the industries such as mechanochemistry, and ammonia nitrogen-containing wastewater generated in some industries such as oil refining is converted into nitrate nitrogen after nitrification.

The amount of nitrate nitrogen in the wastewater directly influences the standard reaching of the total nitrogen index, and with the upgrade control of the total nitrogen index in wastewater discharge by the nation, more and more sewage treatment plants and sewage treatment workshops of enterprises face the upgrading problem of further removing the residual nitrate nitrogen in the wastewater. At present, aiming at the problem that the total nitrogen index exceeds the standard, a water plant or a workshop generally adopts a newly-added biological filter tank process (Liuzhifang, jinxiyu, kang, the biological filter tank is used for debugging and running of a lifting and transformation project of a sewage treatment plant [ J ] scientific and technological innovation and application, 2016 (9): 64-65), the biological filter tank comprises a backwashing water pump, a backwashing fan, a water inlet and outlet and water distribution system, an air inlet and air distribution system, a filtering filler, a backwashing water tank, a clear water tank and the like, and the biological filter tank has the defects of high one-time construction investment cost, high risk of frequent backwashing and blockage of the filter tank, high power load of the backwashing pump which is required to be provided with a high-power blower, poor effluent stability in response to fluctuation of the water quality of the incoming water, complex effluent quality control under process conditions, difficulty in guarantee of the effluent quality and the like.

In the aspect of black and odorous water body treatment, the problem of water body eutrophication is urgently solved. Domestic sewage, wastewater from chemical fertilizers, food and other industries and farmland drainage contain a large amount of nitrogen, phosphorus and other inorganic salts. After the natural water body receives the wastewater, the nutrient substances in the water are increased, the autotrophic organisms are promoted to grow vigorously, and particularly, the individual number of blue algae and red algae is increased rapidly. At present, a coagulation sedimentation process is generally adopted in the industry (Yuanli. A technical scheme for removing total phosphorus of a certain sewage treatment plant [ J ] water purification technology 2014, 33 (s 1): 72-74), the total nitrogen treatment difficulty of the process is high, the problem of water eutrophication can not be effectively solved, and the problem can only be effectively solved by increasing the treatment pressure of the total nitrogen of the sewage treatment plant by adopting a control source.

SUMMERY OF THE UTILITY MODEL

The utility model provides an integrated nitrate nitrogen removing device to solve the problem that the total nitrogen of water plants, workshops or black and odorous water bodies exceeds standard.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an integration nitrate nitrogen remove device, includes intelligent water intake system, biological filter system, MBBR system, erects a stream sedimentation system, sludge return system, intelligent charge system, autonomous system, intelligence water intake system and biological filter headtotail, biological filter system and MBBR headtotail, the MBBR system with erect a stream sedimentation headtotail, sludge return system with erect a stream sedimentation system, biological filter headtotail, intelligent charge system and biological filter system, MBBR headtotail, autonomous system and intelligent water intake system, biological filter system, MBBR system, erect a stream sedimentation system, sludge return system, intelligent charge headtotail.

Furthermore, the intelligent water inlet system comprises a water inlet lifting pump, a frequency converter and a liquid level meter, wherein the frequency converter is positioned in an intelligent control cabinet of the automatic control system, and the liquid level meter is arranged at the top of the biological filter system.

Furthermore, the biofilter system comprises a fixed type biofilm filler and an oxygen dissolving instrument, wherein the fixed type biofilm filler is vertically fixed in the biofilter system, and the oxygen dissolving instrument is arranged at the top of the biofilter system.

Further, the MBBR system include portable biomembrane filler, filler interception screen cloth, pH detector, special mixer of MBBR, the pH detector install behind the filler interception screen cloth, special mixer of MBBR install in the MBBR system bottom.

Further, the appearance of the mobile biological film filler is spherical, cylindrical, square or regular polyhedron; the packing interception screen is arranged at the front end of the communicating pipe, and one end of the communicating pipe is positioned at the center of the bottom of the packing interception screen.

Furthermore, the vertical flow sedimentation system is provided with a guide cylinder, a bell mouth, a reflecting plate, a communicating pipe, a water outlet weir, a sludge hopper and a sludge collecting pipe, wherein the guide cylinder is arranged at the central position of the vertical flow sedimentation system, and the sludge hopper is arranged at the bottom of the vertical flow sedimentation system.

Further, the sludge return system is provided with a sludge return pump.

Further, intelligence medicine system includes carbon source dosing tank, sodium carbonate dosing tank.

Furthermore, the automatic control system comprises an intelligent control cabinet, a PLC and a data transmission system.

Further, a heat preservation shell is installed on the outer side of the integrated nitrate nitrogen removal device.

The utility model discloses following technological effect has:

(1) Fixed biomembrane filler and portable biomembrane filler all adopt modified filler, and hydrophilic property improves by a wide margin, improves the biofilm culturing effect, promotes the treatment effeciency more than 20%.

(2) Adopt the special mixer of MBBR in the MBBR system, realize packing and sewage intensive mixing, avoid simultaneously packing to sink and the end is piled up to lift system efficiency.

(3) The sludge reflux pump adopts frequency conversion speed regulation, flexibly regulates the reflux quantity according to the water quality condition, and ensures that the water outlet of the device stably reaches the standard.

(4) The utility model discloses be applied to sewage factory, black smelly water body total nitrogen index and exceed standard and reform transform the engineering, can high-efficiently get rid of nitrate nitrogen, further get rid of remaining organic matter simultaneously.

(5) Compared with the prior art, the utility model, have the characteristics that nitrate nitrogen special item was got rid of, the total nitrogen of solution sewage that can be pertinence problem that exceeds standard, water eutrophication problem, the treatment effect is obvious, and degree of automation is high, and the operation is stable, can realize unmanned on duty, and the energy consumption is low running cost hangs down.

(6) The utility model discloses be applied to biochemical pond rear end or black and odorous water eutrophication and administer among the sewage treatment system, can get rid of organic matter, nitrate nitrogen in the waste water, remaining organic matter gets rid of effectually, nitrate nitrogen gets rid of efficiently, goes out water quality of water stable, has and to realize that cell-phone APP control, a key open stop, easy operation, equipment integrated level height, simple to operate, engineering implementation are fast, the medicament consumption is few, the treatment effect advantage such as stable.

Drawings

FIG. 1 is a view showing the structure of the vertical face of the present invention;

fig. 2 is a plan view of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 2, an integrated nitrate nitrogen removing device comprises an intelligent water inlet system, a biological filter system, an MBBR system, a vertical flow sedimentation system, a sludge return system, an intelligent dosing system and an automatic control system, wherein the intelligent water inlet system is connected with the biological filter system, the biological filter system is connected with the MBBR system, the MBBR system is connected with the vertical flow sedimentation system, the sludge return system is connected with the vertical flow sedimentation system and the biological filter system, a carbon source dosing tank 16 and a sodium carbonate dosing tank 18 in the intelligent dosing system are connected with the biological filter system and the MBBR system, and the automatic control system is connected with a water inlet lifting pump 1 of the intelligent water inlet system, a liquid level meter 20 on the biological filter system, a dissolved oxygen meter 21, a pH detector 22 on the MBBR system, a sludge return pump 14 of the vertical flow sedimentation system, a carbon source dosing pump 17 of the intelligent dosing system and a sodium carbonate dosing pump 19.

The intelligent water inlet system comprises a water inlet lift pump 1, a frequency converter (located in an intelligent control cabinet 23 of an automatic control system) and a liquid level meter (containing temperature detection) 20, wherein the liquid level meter is installed at the top of the biological filter system, and the frequency converter autonomously controls the frequency conversion frequency of the lift pump.

The biofilter system 2 adopts a fixed biofilm filler 3, the biofilm filler is fixed in the biofilter system by a nylon rope or a steel wire rope and does not move greatly, the filler is made of modified polyethylene (or HDPE or nylon) materials such as embedding modification, surface grafting modification or iron ion covering modification, and the filler is vertically fixed in the biofilter system. The dissolved oxygen meter 21 is arranged at the top of the biological filter system 2, and the intelligent dosing system controls the carbon source dosing pump 17 to automatically dose the medicament to the biological filter system 2 through the intelligent control cabinet 23.

The MBBR system 5 is an MBBB pool, a mobile biomembrane filler 6 is adopted in the pool body, the biomembrane filler is regularly moved in the pool body by adopting an MBBR special stirrer 4 (central stirring or circulation stirring) to form a fluidized bed, and the MBBR special stirrer is installed at the bottom of the MBBR pool through flow state calculation. A special filler intercepting screen 7 is arranged in the tank, so that the filler does not enter a vertical flow sedimentation system and an annular fluidized state is kept. The filler is made of polyethylene (or HDPE or nylon) which is modified by embedding modification, surface grafting modification, iron ion covering modification and the like, the appearance of the filler is spherical, cylindrical, square or regular polyhedron, and the filler is put into the MBBB tank body according to 20-60% of filling rate. A pH detector 22 capable of remotely transmitting data is arranged in the tank body, an intelligent dosing system controls a sodium carbonate dosing pump 19 to automatically dose a medicament to the biological filter system 2 through an intelligent control cabinet 23, and the pH detector 22 is arranged behind a filler intercepting screen 7.

The special MBBR stirrer 4 interacts with the filler interception screen 7, and the movable biofilm filler 6 performs fluidization circulation motion. The impeller speed of the special stirrer 4 for the MBBR is 100-150r/min, and the impeller pushing direction is aligned to the center of the bottom surface of the tank body. The filler intercepting screen 7 is arranged at the front end of the communicating pipe 25, the opening rate of the filler intercepting screen 7 is 40-60%, and the installation angle of the filler intercepting screen 7 is 10-20 degrees with the side wall of the MBBR tank body. One end of the communicating pipe 25 is positioned at the center of the bottom of the packing intercepting screen 7.

The vertical flow sedimentation system 8 is provided with a guide shell 9, a bell mouth 11, a reflecting plate 12, a communicating pipe 25, a water outlet weir 10, a sludge hopper 13 and a sludge collecting pipe 15, the guide shell 9 is arranged at the central position of the vertical flow sedimentation system 8, the sludge hopper 13 adopts a multi-hopper structure and is arranged at the bottom of the vertical flow sedimentation system 8, the volume of the tank body can be effectively utilized, the space occupied by a single sludge hopper is reduced, and the sludge collecting pipe 15 is uniformly perforated.

The sludge return system is provided with a special sludge discharge port and a sludge return pump 14, the sludge discharge port is connected with a sludge collecting pipe 15, the sludge return pump 14 adopts variable frequency control, the frequency can be remotely set, and the sludge returns to the biological filter system 2.

The intelligent dosing system comprises a carbon source dosing tank 16 and a sodium carbonate dosing tank 18, the carbon source dosing pump 17 and the sodium carbonate dosing pump 19 are used for respectively dosing agents in the carbon source dosing tank 16 and the sodium carbonate dosing tank 18 to the front end of the biological filter system 2, and the dosing amounts of the carbon source and the sodium carbonate are automatically adjusted by collecting instrument data such as pH and dissolved oxygen.

The automatic control system comprises an intelligent control cabinet 23, a PLC and a data transmission system, automatic control equipment is subjected to water inlet, medicine adding, water pump frequency conversion and stirring operation, instrument data and equipment running conditions in the integrated nitrate nitrogen removal device are connected into the PLC through the data transmission system, automatic running is achieved under the action of a PLC program, and one-key starting under an automatic control mode can be achieved through the PLC program.

The heat preservation shell 24 is arranged on the outer side of the integrated nitrate nitrogen removal device, and the heat preservation shell 24 is made of heat preservation and insulation materials.

The utility model discloses an integrated nitrate nitrogen remove device's use technology route:

(1) The wastewater is pumped into the biological filter system 2 through the water inlet lifting pump 1, and the water inlet amount is automatically controlled by the intelligent control cabinet 23.

(2) The surface of a fixed biofilm filler 3 in a biofilter system 2 is fully coated with a biofilm, the biofilm is an ecological system consisting of highly dense aerobic bacteria, anaerobic bacteria, facultative bacteria, fungi, protozoa, algae and the like, bacterial colonies growing on the filler take pollutants in the wastewater as food, nitrate nitrogen in the wastewater is converted into nitrogen, and meanwhile, the residual organic matters in the wastewater are further degraded to achieve the aim of removing TN indexes; fixed biomembrane filler 3 adopts advanced modified filler, has higher hydrophilic properties, and the microorganism can be on the surface fast biofilm formation growth, adopts fixed form can effectively reduce the impact kinetic energy that intake elevator pump 1 brought, utilizes remaining dissolved oxygen in the aquatic simultaneously, forms comparatively abundant biological bacterial colony (aerobic bacteria, anaerobe, facultative bacteria etc.), has certain removal effect to the organic matter of difficult degradation.

(3) The concentration of residual organic matters and total nitrogen in the wastewater treated by the biological filter system 2 is reduced, the wastewater enters an MBBR system 5 (an MBBB pool) through the bottom communication, and a mobile biological film filler 6 in the pool forms a uniform fluidized state under the stirring action of a special MBBR stirrer 4 and the diversion action of a filler interception screen 7, so that microorganisms growing on the mobile biological film filler have more chances to contact and react with residual pollutants in the wastewater; portable biomembrane packs 6 and adopts advanced modified filler equally, because the effect of front end biological filter system 2, dissolved oxygen environment, organic matter environment in the MBBR system 5 more are fit for the growth of denitrifying bacteria, and the biomembrane grows to use the ammonia nitrogen as only electron donor, consequently nitrobacteria account for leading position, consequently the utility model discloses the device has higher advantage in the aspect of the getting rid of total nitrogen.

(4) The wastewater treated by the MBBR system 5 enters a vertical flow sedimentation system 8, the separated biomembrane and activated sludge realize sludge-water separation in the system, solid sediments are deposited in a sludge hopper 13 to continue degrading residual pollutants in the wastewater, and clear produced water is collected by a water outlet weir 10 and then is discharged after reaching the standard or enters the next treatment unit.

(5) A PLC in the intelligent control cabinet 23 collects instrument data and equipment running conditions on the integrated nitrate nitrogen removal device in real time and adjusts the instrument data and the equipment running conditions in real time through an automatic control system; the remote control mode transmits data in the PLC to the cloud storage system through the signal station, and then the mobile phone client side is provided with app to receive the cloud storage data, so that the functions of mobile phone remote inspection and control are finally achieved, and one-key starting in the remote control mode can be achieved through the PLC program.

Use the utility model discloses an integration nitrate nitrogen remove device (use above-mentioned process route simultaneously) and prior art biological filter of background art carry out the denitrogenation of waste water and handle, and the condition is as follows:

note: the prior art biofilters are derived from the literature: the Liuzhifang, jinxiyu and Kangti biofilter is used for debugging and running of a standard-extracting modification project of a sewage treatment plant [ J ] scientific and technological innovation and application, 2016 (9): 64-65, wherein the biological filter comprises a back flush water pump, a back flush fan, a water inlet and outlet and water distribution system, an air inlet and distribution system, a filter filler, a back flush water tank, a clean water tank and the like.

It can be known from the upper table calculation, use the utility model discloses a device total nitrogen clearance has reached 82.2%, and adopts the total nitrogen clearance of current denitrogenation technique under the same total nitrogen's of intaking the condition only to be 55.6%. This current denitrogenation technique mainly is bological aerated filter technique, simple process, and total nitrogen gets rid of the effect and obviously compare and use the utility model discloses a device's total nitrogen clearance is low a lot, and the waste water after removing the nitrogen hardly reaches standard emission standard, has very big risk that exceeds standard. In the aspect of coping with the impact load of incoming water, the existing denitrification technology has a single process, the activity degree of microorganisms in a system is directly influenced by the fluctuation of water quality, and the effluent stability is poor. In addition, the biological aerated filter also needs frequent backwashing, and has complex operation, high energy consumption and complex equipment structure. It is visible to use the utility model discloses a device total nitrogen clearance is high, and it is stable to go out water, easy operation, and the energy consumption is low, and equipment cost is low, and the running cost is low, excellent in use effect.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.

Claims

1. The utility model provides an integration nitrate nitrogen remove device, its characterized in that, including intelligent water intake system, biological filter system, MBBR system, perpendicular flow sedimentation system, sludge return system, intelligent charge system, autonomous system, intelligence water intake system and biological filter headtotail, biological filter system and MBBR headtotail, the MBBR system with perpendicular flow sedimentation headtotail, sludge return system with perpendicular flow sedimentation system, biological filter headtotail, intelligent charge system and biological filter system, MBBR headtotail, autonomous system and intelligent water intake system, biological filter system, MBBR system, perpendicular flow sedimentation system, sludge return system, intelligent charge headtotail.

2. The integrated nitrate nitrogen removal device according to claim 1, wherein the intelligent water inlet system comprises a water inlet lift pump, a frequency converter and a liquid level meter, the frequency converter is positioned in an intelligent control cabinet of an automatic control system, and the liquid level meter is installed at the top of the biological filter system.

3. The integrated nitrate nitrogen removal device according to claim 1, wherein the biofilter system comprises fixed biofilm fillers and an oxygen dissolving instrument, the fixed biofilm fillers are vertically fixed in the biofilter system, and the oxygen dissolving instrument is arranged at the top of the biofilter system.

4. The integrated nitrate nitrogen removal device of claim 1, wherein the MBBR system comprises a movable biofilm filler, a filler interception screen, a pH detector and a special MBBR stirrer, the pH detector is arranged behind the filler interception screen, and the special MBBR stirrer is arranged at the bottom of the MBBR system.

5. The integrated nitrate nitrogen removal device according to claim 4, wherein the mobile biofilm carrier is spherical, cylindrical, square or regular polyhedron in appearance; the packing interception screen is arranged at the front end of the communicating pipe, and one end of the communicating pipe is positioned at the center of the bottom of the packing interception screen.

6. The integrated nitrate nitrogen removal device of claim 1, wherein the vertical flow sedimentation system is provided with a guide cylinder, a bell mouth, a reflecting plate, a communicating pipe, a water outlet weir, a sludge hopper and a sludge collecting pipe, the guide cylinder is arranged at the central position of the vertical flow sedimentation system, and the sludge hopper is arranged at the bottom of the vertical flow sedimentation system.

7. The integrated nitrate nitrogen removal device according to claim 1, wherein the sludge recirculation system is provided with a sludge recirculation pump.

8. The integrated nitrate nitrogen removal device of claim 1, wherein the intelligent dosing system comprises a carbon source dosing tank and a sodium carbonate dosing tank.

9. The integrated nitrate nitrogen removal device of claim 1, wherein the automatic control system comprises an intelligent control cabinet, a PLC and a data transmission system.

10. The integrated nitrate nitrogen removal device of any one of claims 1 to 9, wherein a heat-insulating shell is arranged outside the integrated nitrate nitrogen removal device.