CN114702202B - Microorganism water quality purifying filter tank - Google Patents

Microorganism water quality purifying filter tank Download PDF

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Publication number
CN114702202B
CN114702202B CN202210301248.6A CN202210301248A CN114702202B CN 114702202 B CN114702202 B CN 114702202B CN 202210301248 A CN202210301248 A CN 202210301248A CN 114702202 B CN114702202 B CN 114702202B
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China
Prior art keywords
steel frame
support steel
aeration
anaerobic
water
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CN114702202A (en
Inventor
王嗣禹
杨龙
王香春
周媛
张敏
储杨阳
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China Urban Construction Design and Research Institute Co Ltd
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China Urban Construction Design and Research Institute Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/30—Aerobic and anaerobic processes
    • C02F3/301—Aerobic and anaerobic treatment in the same reactor
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/30—Aerobic and anaerobic processes
    • C02F3/308—Biological phosphorus removal
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
    • C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/16—Total nitrogen (tkN-N)
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/14—Maintenance of water treatment installations

Abstract

The invention provides a microbial water quality purifying filter tank, and belongs to the field of environmental protection equipment. The microbial water quality purifying and filtering tank comprises a tank body, wherein the tank body is sequentially divided into a vertical flow sedimentation area, an aeration aerobic area and an anaerobic purifying area from bottom to top; the vertical flow sedimentation area comprises a sedimentation mud discharging bucket arranged at the bottom of the tank body, and a first support steel frame is arranged at the top of the sedimentation mud discharging bucket; the first support steel frame is provided with a water distribution aeration mechanism; the aeration aerobic zone comprises a binding band type packing, and the upper end of the binding band type packing is fixed on a fourth support steel frame; the anaerobic purification zone comprises an anaerobic packing module, anaerobic packing in the anaerobic packing module is arranged on a fourth supporting steel frame, a fifth supporting steel frame is arranged at the top end of the anaerobic packing module, and a three-phase separator II is arranged on the fifth supporting steel frame. The water quality purifying filter tank is mainly used for purifying water quality, has uniform water distribution, can carry out high-efficiency treatment on polluted water, has the characteristics of low production and maintenance cost, convenient use and the like, and has certain environmental protection and economic value.

Description

Microorganism water quality purifying filter tank
Technical Field
The invention belongs to the field of environmental protection equipment, and particularly relates to a microbial water quality purifying filter tank.
Background
The pollutant level discharged to the water body in the city exceeds the self-cleaning capability of the water body, so that the water body is eutrophicated and black and odorous. River pollution has the characteristics of large randomness, wide distribution range, fuzzy formation mechanism, strong latency, hysteresis occurrence and the like, and causes great control difficulty, thus becoming a difficult point and a short plate for water environment treatment.
At present, the engineering control technology in China mainly comprises constructed wetland, shore buffer zone, ecological ditch purification and the like, but the control technology has the characteristics of large occupied area, high maintenance cost and the like, and is greatly limited in popularization and application. Meanwhile, most traditional sewage treatment facilities are not suitable for the scene due to the characteristics of low pollutant concentration and large water quantity, and the effluent cannot meet the environmental emission requirement. The existing sewage treatment device solves the problems of unsatisfactory purifying effect, single mode, high treatment cost, low efficiency and the like in river pollution.
Disclosure of Invention
The invention provides a microbial water quality purifying filter tank, which realizes the functions of nitrogen and phosphorus removal and organic matter removal of an integrated water body, efficiently utilizes the microbial action, and plays the role of water body treatment to purify the water quality so as to solve the problems.
The invention provides a microbial water quality purifying filter tank, which comprises a tank body, wherein the tank body is sequentially divided into a vertical flow sedimentation zone, an aeration aerobic zone and an anaerobic purifying zone from bottom to top;
the vertical flow sedimentation zone comprises a sedimentation mud discharging bucket arranged at the bottom of the tank body, and a first support steel frame is arranged at the top of the sedimentation mud discharging bucket; the first support steel frame is provided with a water distribution aeration mechanism; a second support steel frame is arranged above the water distribution aeration mechanism, and a three-phase separator I is arranged on the second support steel frame;
The aeration aerobic zone comprises a binding band type packing, and the upper end of the binding band type packing is fixed on a fourth support steel frame;
The anaerobic purification zone comprises an anaerobic filler module, anaerobic filler in the anaerobic filler module is arranged on a fourth support steel frame, a fifth support steel frame is arranged at the top end of the anaerobic filler module, and a three-phase separator II is arranged on the fifth support steel frame.
Further, the water distribution and aeration mechanism comprises two aeration distribution pipes and at least one water inlet distribution pipe, wherein the two aeration distribution pipes are arranged in a crisscross manner, the crossing part is vertically communicated with an aeration main pipe, and the aeration main pipe passes through the top of the tank body and is connected with an aeration pump; water inlet distribution pipes are inserted between adjacent aeration distribution pipes, and the water inlet distribution pipes are communicated with a water inlet main pipe.
Further, the aeration distribution pipe is positioned above the water inlet distribution pipe; the included angle between the water inlet distribution pipe and the aeration distribution pipe is 45 ℃.
Further, at least one aeration head which is vertically upwards arranged is arranged on the aeration distribution pipe; at least one outflow pipe which is vertically arranged downwards is arranged on the water inlet distribution pipe.
Further, the sediment sludge discharge hopper is provided with a blow-down pipe, and the blow-down pipe is positioned at the lower part of the sediment sludge discharge hopper.
Further, the aeration aerobic zone further comprises a third support steel frame, the third support steel frame is located below the fourth support steel frame, and the third support steel frame is used for fixing strap type packing.
Further, the anaerobic filler module consists of water treatment filler; the water treatment filler is formed by uniformly mixing pyrite, calcium carbonate, sodium alginate and active carbon in a mass ratio of 100:5:2:1.
Further, the anaerobic purification zone further comprises a sixth support steel frame, and an overflow weir is arranged on the sixth support steel frame.
Further, the first support steel frame, the second support steel frame, the third support steel frame, the fourth support steel frame, the fifth support steel frame and the sixth support steel frame are all provided with support blocks for supporting the steel frames, and the support blocks are fixedly connected with the tank body.
Further, the second support steel frame, the third support steel frame, the fourth support steel frame, the fifth support steel frame and the sixth support steel frame are support steel frames which are hollowed.
The invention has the following advantages:
The invention provides a microorganism water quality purifying filter tank, which adopts an integrated microorganism water quality purifying filter tank, divides the environment of a reaction process into a vertical flow sedimentation area, an aeration aerobic area and an anaerobic purifying area in the filter tank, respectively constructs an internal structure meeting the requirements of the filter tank aiming at main functions born by different areas of the filter tank, promotes the growth of purified water microorganisms by utilizing the synergistic effect of two fillers, ensures that the same reaction tank body can simultaneously realize nitrification and denitrification reactions, completes denitrification and dephosphorization and removes COD and solid suspended matters (SS), strengthens the water purifying effect of the filter tank, and ensures that the filter tank has higher treatment efficiency. The filter tank has uniform water distribution, can carry out high-efficiency treatment on polluted water, has the characteristics of low production and maintenance cost, convenient use and the like, and has certain environmental protection and economic value.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of a device structure according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a water distribution aeration mechanism in an embodiment of the invention;
FIG. 3 is a schematic view of a water inlet distribution pipe according to an embodiment of the present invention;
FIG. 4 is a schematic view of an aeration distribution pipe structure according to an embodiment of the present invention;
reference numerals illustrate:
the vertical flow sedimentation area 1, the water distribution aeration mechanism 10, the sedimentation mud bucket 11, the first support steel frame 12, the second support steel frame 13, the three-phase separator I14, the water inlet distribution pipe 15, the aeration distribution pipe 16, the aeration head 17, the outflow pipe 18 and the blow-down pipe 19;
the aeration aerobic zone 2, the binding band type packing 21, the fourth support steel frame 22 and the third support steel frame 23; an aeration dry pipe 24; an aeration pump 25;
the anaerobic purification zone 3, the anaerobic filler module 31, the fifth support steel frame 32 and the three-phase separator II 33; sixth support steelframe 34, overflow weir 35, delivery port 36.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. Embodiments of the invention and features of the embodiments may be combined with each other without conflict. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
Referring to fig. 1-4, the embodiment of the invention provides a microorganism water quality purifying filter tank, according to the low pollution water quality condition of a river channel, the environment of a reaction process is divided into a vertical flow sedimentation area, an aeration aerobic area and an anaerobic purifying area in the filter tank, and internal structures meeting the requirements of the filter tank are respectively constructed according to the main functions born by different areas of the filter tank, so that the rapid purification of the river channel water quality can be realized, and the black and odorous water body is treated with high efficiency, and the filter tank is mainly used in the field of ecological treatment.
Referring to fig. 1 and 2, an embodiment of the invention provides a microbial water quality purifying filter tank, which comprises a tank body, wherein the tank body is sequentially divided into a vertical flow sedimentation zone 1, an aeration aerobic zone 2 and an anaerobic purifying zone 3 from bottom to top;
The vertical flow sedimentation zone 1 comprises a sedimentation mud discharging bucket 11 arranged at the bottom of the tank body, and a first supporting steel frame 12 is arranged at the top of the sedimentation mud discharging bucket 11; the first support steel frame 12 is provided with a water distribution aeration mechanism 10; a second support steel frame 13 is arranged above the water distribution aeration mechanism 10, and a three-phase separator I14 is arranged on the second support steel frame 13;
The aeration aerobic zone 2 comprises a binding band type packing 21, and the upper end of the binding band type packing 21 is fixed on a fourth support steel frame 22;
The anaerobic purification zone 3 comprises an anaerobic filler module 31, anaerobic filler in the anaerobic filler module 31 is arranged on the fourth support steel frame 22, a fifth support steel frame 32 is arranged at the top end of the anaerobic filler module 31, and a three-phase separator two 33 is arranged on the fifth support steel frame 32.
The microbial water quality purifying filter tank provided by the embodiment of the invention adopts an integrated arrangement, reduces the volume of equipment, divides the filter tank into a vertical flow sedimentation zone, an aeration aerobic zone and an anaerobic purifying zone, and arranges a water distribution aeration mechanism and a sedimentation mud bucket in the vertical flow sedimentation zone so as to promote the sedimentation of solid suspended matters by utilizing the action of water power and air flow. The aeration aerobic zone and the anaerobic purification zone are respectively provided with a binding band type filler and an anaerobic filler module, so that the microbial biomass of the aeration aerobic zone is relatively high, and ammonia oxidizing bacteria and heterotrophic bacteria for digesting organic matters are enriched in a sufficient proportion, and the dissolved oxygen content in the filter tank can be effectively controlled in the process of removing ammonia nitrogen and COD, so that the denitrifying bacteria, anaerobic ammonia oxidizing bacteria and other denitrification bacterial groups entering the anaerobic purification zone have good anaerobic environments, and the filler is utilized to ensure the proper microbial environments. The reasonable internal structural design and the packing application of the integrated equipment enable the running operation to be simpler and more convenient, meanwhile, compared with the traditional multi-section sewage treatment facilities, the integrated equipment reduces the use of structural materials of the facilities, further reduces the manufacturing cost and the running maintenance cost, and further increases the advantages of the equipment.
In an embodiment of the present invention, the water distribution and aeration mechanism 10 includes two aeration distribution pipes 16 and at least one water inlet distribution pipe 15, the two aeration distribution pipes 16 are disposed in a crisscross manner, and the intersection is vertically communicated with an aeration main pipe 24, and the aeration main pipe 24 passes through the top of the tank body and is connected with an aeration pump 25; a water inlet distribution pipe 15 is inserted between the adjacent aeration distribution pipes 16, and the water inlet distribution pipe 15 is communicated with a water inlet main pipe.
Further, the water inlet distribution pipe 15 penetrates through the tank body and is connected with the tank body, and the water inlet main pipe is arranged outside the tank body and is connected with a water source. One end of the water inlet distribution pipe 15 is communicated with a water inlet main pipe, and the other end of the water inlet distribution pipe 15 is provided with a pipe plug.
Further, two aeration distribution pipes 16 are provided in the tank. The aeration distribution pipes 16 are arranged in a crisscross manner, pipe plugs are arranged at the end parts of the aeration distribution pipes 16, the horizontally arranged aeration distribution pipes 16 are vertically communicated with the vertically arranged aeration main pipes 24 at the crossing parts, and gas generated by the external aeration pump of the tank body enters the aeration distribution pipes 16 through the aeration main pipes 24 for aeration.
Preferably, the aeration distribution pipe 16 is located above the water inlet distribution pipe 15; the included angle between the water inlet distribution pipe 15 and the aeration distribution pipe 16 is 45 ℃. Since the water inlet distribution pipes 15 are inserted between the aeration distribution pipes 16, the aeration heads 17 and the outlet pipes 18 are staggered. The aeration head is positioned on the outflow pipe, so that sufficient oxygen is provided, meanwhile, disturbance to water flow is avoided, suspended matters are minimally disturbed to be settled, and air bubbles can bring lighter suspended matters in water to float up to the three-phase separator for further separation.
More preferably, at least one aeration head 17 arranged vertically upwards is arranged on the aeration distribution pipe 16; at least one outflow pipe 18 is arranged vertically downwards on the water inlet distribution pipe 16. In the embodiment of the invention, the water distribution aeration mechanism 10 adopts downflow uniform water distribution. Ensuring that larger solid suspended matters in the water can be settled along with the water flow. The aeration head is mainly used for conveying gas and liquid to an aeration aerobic zone for treatment in an aeration mode, and the outflow pipe is mainly used for discharging solid suspended matters in sewage.
More preferably, the number of the aeration heads 17 is 1-20; the number of the outflow pipes 18 is 1-20.
Further, the sediment sludge discharge hopper 11 is in a conical funnel shape. The conical funnel-shaped sludge sedimentation zone is convenient for sediment discharge of solid suspended matters.
Further, the sediment sludge discharge hopper 11 is provided with a blow-down pipe 19 for discharging sludge and discharging the device for emergency evacuation, and the blow-down pipe is positioned at the lower part of the sediment sludge discharge hopper.
Preferably, the tank body is provided with a manhole, and the manhole is positioned above the sediment sludge discharge bucket 11.
In an embodiment of the present invention, the aeration aerobic zone 2 further includes a third support steel frame 23, the third support steel frame 23 is located below the fourth support steel frame 22, and the third support steel frame 23 is used for fixing the strapping filler 21. Preferably, the third supporting steel frame 23 is used for fixing the middle part of the strapping filler 21. In the embodiment of the invention, the binding band type filler is fixed at two sections, and after sludge is inoculated, a stable attachment environment can be provided for microorganisms, so that the growth and stable denitrification of autotrophic microorganisms are ensured. In the embodiment of the invention, the upper end of the binding band type filler is fixed, can swing along with water flow and air flow, and can accelerate the iterative update of heterotrophic short-period microorganisms through self-swinging.
Preferably, the binding band type filler is formed by braiding elastic materials and soft material mixed braids in a band type, the specific surface area of the binding band type filler is 5000m 2·m-3, after sludge is inoculated, a biological film consisting of sludge and microorganisms can be loaded on the binding band type filler, and the biological film has the nitrification and COD removal capacity and forms a ring-shaped radiation structure. The microorganisms include heterotrophic bacteria and nitrifying bacteria.
In one embodiment of the invention, the anaerobic filler module 31 is filled with water treatment filler. The water treatment filler is formed by uniformly mixing pyrite, calcium carbonate, sodium alginate and active carbon in a mass ratio of 100:5:2:1. Specifically, the water treatment filler can be directly filled between the fourth support steel frame 22 and the fifth support steel frame 32, and the pyrite with different particle sizes can be respectively paved from bottom to top through particle size control, so that the filler can not fall down.
Further, the anaerobic purification zone 3 further comprises a sixth support steel frame 34, and an overflow weir 35 is arranged on the sixth support steel frame 34. Further, the upper part of the tank body is provided with a water outlet 36. The water outlet 36 is located below the top end of the weir 35.
In an embodiment of the present invention, the first support steel frame 12, the second support steel frame 13, the third support steel frame 23, the fourth support steel frame 22, the fifth support steel frame 32, and the sixth support steel frame 34 are all provided with support blocks for supporting the steel frames, and the support blocks are fixedly connected with the tank body.
Preferably, support blocks for supporting the steel frames are arranged below the second support steel frame 13, the third support steel frame 23, the fourth support steel frame 22, the fifth support steel frame 32 and the sixth support steel frame 34. The supporting block is fixedly connected with the tank body. And supporting blocks for supporting the steel frame are arranged on the lateral sides of the first supporting steel frame 12. The supporting block is fixedly connected with the tank body.
Preferably, the first support steel frame 12 is provided with a support column for supporting the water distribution aeration mechanism 10, so that the outlet pipe can work normally. The second support steel frame 13, the third support steel frame 23, the fourth support steel frame 22, the fifth support steel frame 32 and the sixth support steel frame 34 are all support steel frames with hollowed-out arrangement, so that the gas and the liquid after aeration can be transported upwards through the hollowed-out arrangement of the support steel frames.
The specific implementation process of the invention is as follows:
Firstly, before use, a tank working mode is started, sludge is inoculated in the tank, so that a biological film containing bacteria such as heterotrophic bacteria and nitrifying bacteria is formed on the binding band type filler 21, and bacteria containing denitrifying bacteria, anaerobic ammonia oxidizing bacteria, short-range denitrifying bacteria and the like are loaded on the anaerobic filler module 31.
Then, the normal operation mode is performed again. In the vertical flow sedimentation zone 1, sewage to be treated enters a water distribution aeration mechanism 10 from a water inlet main pipe, the water distribution aeration mechanism 10 is positioned in the middle of the vertical flow sedimentation zone, a downward-arranged outflow pipe 18 is arranged on a water inlet distribution pipe 15, so that larger particle suspended matters such as sediment are conveniently settled into a sediment mud discharge hopper 11, an upward-arranged aeration head 17 is arranged on an aeration distribution pipe 16 and staggered with the outflow pipe 18, disturbance of air flow to outflow water flow is reduced, and lighter solid suspended matters can be brought to a three-phase separator 14 for separation by utilizing an air floatation effect while aeration is carried out.
In the aeration aerobic zone 2, sewage after three-phase separation, larger solid suspended matters are directly discharged out of the tank body through a sediment sludge discharge hopper, gas and liquid sewage are purified through the aeration aerobic zone 2, COD and ammonia nitrogen are removed by using the binding band type filler 21 hung with a biological film, and the COD and the ammonia nitrogen can be rapidly removed due to sufficient dissolved oxygen brought by aeration. The strap packing 21 is fixed at the upper end and the middle part, and is not fixed at the lower end. As the lower end flora is most heterotrophic aerobic bacteria, the flora growth and propagation rate is higher, and the biological film with lower activity is peeled off by shaking and mutual collision of the binding band type filler 21 along with water flow. The biomembrane attached to the upper section of the binding band type filler is mainly facultative anaerobic flora, and has slower growth and propagation rate and long life cycle, thus providing a more stable environment for ensuring stable enrichment.
Anaerobic purification zone: the section is carried out on the aerobically treated gaseous and liquid sewage, and the section provides stable anaerobic environment for denitrifying bacteria (denitrifying bacteria, anaerobic ammonia oxidizing bacteria and short-range denitrifying bacteria) by utilizing anaerobic fillers, so as to remove nitrogen in water, and can also absorb and remove phosphorus by utilizing substances such as water treatment fillers (calcium carbonate and calcium hydroxide). And a three-phase separator II 33 is arranged above the anaerobic filler module to perform secondary solid-liquid separation, so that the concentration of effluent SS meets the requirement. The treated clean water is discharged from the water outlet character 36.
The invention will be described in detail with reference to examples.
Example 1a microbiological water purification canister comprising:
the tank body is sequentially divided into a vertical flow sedimentation zone 1, an aeration aerobic zone 2 and an anaerobic purification zone 3 from bottom to top;
The vertical flow sedimentation zone 1 comprises a conical funnel-shaped sedimentation mud discharging hopper 11 arranged at the bottom of the tank body, and a first support steel frame 12 is arranged at the top of the sedimentation mud discharging hopper 11; the first support steel frame 12 is provided with a water distribution aeration mechanism 10; a second support steel frame 13 is arranged above the water distribution aeration mechanism 10, and the first three-phase separator 14 is arranged on the second support steel frame; the sedimentation sludge discharge hopper 11 is provided with a blow-down pipe 19 for discharging sludge and carrying out emergency evacuation on the device, and the blow-down pipe is positioned at the lower part of the sedimentation sludge discharge hopper;
The aeration aerobic zone 2 comprises a binding band type packing 21 (purchased from Jiangsu culvert crystal water treatment technology Co., ltd.), wherein the upper end of the binding band type packing 21 is fixed on a fourth support steel frame 22, and the middle end is fixed on a third support steel frame 23; the water distribution aeration mechanism 10 comprises four water inlet distribution pipes 15 and two aeration distribution pipes 16, wherein the two aeration distribution pipes 16 are arranged in a crisscross manner, the crossing part is vertically communicated with an aeration main pipe 24, and the aeration main pipe 24 passes through the top of the tank body and is connected with an aeration pump 25; a water inlet distribution pipe 15 is inserted between adjacent aeration distribution pipes 16, and the water inlet distribution pipe 15 is communicated with a water inlet main pipe; a plurality of aeration heads 17 are arranged on the aeration distribution pipe 16; the water inlet distribution pipe 16 is provided with a plurality of outflow pipes 18;
The aeration heads 17 are arranged upwards, the outflow pipes 18 are arranged downwards, the aeration heads 17 and the outflow pipes 18 are staggered, and the aeration distribution pipes 16 are positioned above the water inlet distribution pipes 15.
The anaerobic purification zone 3 comprises an anaerobic filler module 31 composed of water treatment fillers, wherein the water treatment fillers are composed of pyrite, calcium carbonate, sodium alginate and active carbon which are uniformly mixed according to the mass ratio of 100:5:2:1. Anaerobic fillers in the anaerobic filler module 31 are arranged on the fourth support steel frame 22, a fifth support steel frame 32 is arranged at the top end of the anaerobic filler module 31, and a three-phase separator II 33 is arranged on the fifth support steel frame 32; the anaerobic purification zone 3 further comprises a sixth support steel frame 34, and an overflow weir 35 is arranged on the sixth support steel frame;
The upper part of the tank body is provided with a water outlet 36, and the water outlet 36 is positioned below the top end of the overflow weir 35.
The first support steelframe 12 that the fretwork set up second support steelframe 13, third support steelframe 23, fourth support steelframe 22, fifth support steelframe 32, sixth support steelframe 34 all are equipped with the supporting shoe that is used for supporting the steelframe, the supporting shoe links to each other with the jar body is fixed.
Comparative example 1a microbial water purification canister comprising:
The difference with example 1 is that the aeration aerobic zone is activated sludge and has no binding band type filler.
Comparative example 2 a microbial water purification canister comprising:
the difference from example 1 is that the anaerobic purification zone is activated sludge without anaerobic filler modules.
Test example 1 test of sewage treatment Performance of microorganism Water quality purification Filter tank
Firstly, starting a microorganism water quality purifying filter tank, which comprises the following steps:
1) Putting river (ditch) bottom mud or sewage treatment plant secondary sedimentation tank mud serving as seed mud into an aeration aerobic zone of the reactor;
2) Adding artificial water with ammonia nitrogen of 200mg/L and pH value of 7.5-8.0 into the reactor;
3) Starting a reactor for continuous aeration, operating in an SBR intermittent water inlet mode, setting the hydraulic retention time to be 2 days, and detecting total nitrogen in water;
4) Repeating the steps 2) and 3) until the effluent quality reaches more than 80% of the total nitrogen removal rate, and finishing the starting setting.
Then, the purifying effect of the microorganism water quality purifying filter tank on black and odorous water body is tested, and the method comprises the following steps:
The simulated wastewater with the total nitrogen concentration of 10mg/L is injected into the devices of the example 1 and the comparative examples 1-2, and the simulated wastewater is operated in an intermittent water inlet and outlet mode, the hydraulic retention time is 24 hours, the reactor effluent is taken every day to detect nitrogen, phosphorus and COD, and the average treatment effect in the experiment for 30 days is shown in the following table 1, wherein 60% of the detected sample frequency in the test of the example 1 reaches the surface water IV type water quality standard.
TABLE 1
Total phosphorus removal/% Total nitrogen removal/% COD removal rate/% SS removal rate/%
Example 1 93 62 81 99％
Comparative example 1 91 37 36 95％
Comparative example 2 34 16 60 82％
The lack of the binding band type filler in comparative example 1 results in a significantly lower sludge concentration in the aerated aerobic zone, which results in lower COD and ammonia nitrogen removal efficiency, lower consumption rate of dissolved oxygen in water, and no guarantee of anaerobic environment in the anaerobic zone, so that denitrification effect is poor, which results in lower total nitrogen removal efficiency.
The lack of anaerobic filler in comparative example 2 resulted in poor denitrification bacteria enrichment in the anaerobic zone, and the denitrification bacterial flora activity was greatly different from that in example 1, so that the total nitrogen removal rate was lower. And because substances such as calcium carbonate and the like are added into the anaerobic filler, the phosphorus removal capability of the device is ensured to be reduced correspondingly after the anaerobic filler is absent in the comparative example 2. Meanwhile, the comparative example 2 also lacks the filtering effect of the filler, so that the SS is filtered by only three separators, and the removal rate of the SS is correspondingly reduced.
Test example 2
The starting process of the microorganism water quality purifying filter tank is the same as that of test example 1.
The purifying effect of the microorganism water quality purifying filter tank on black and odorous water body is tested, and the method comprises the following steps:
The simulated wastewater with the total nitrogen concentration of 40mg/L was injected into the devices of example 1 and comparative examples 1-2, and the wastewater was operated in an intermittent water inlet and outlet mode, the hydraulic retention time was 24 hours, and the reactor effluent was taken every day to detect nitrogen, phosphorus and COD, and the average treatment effect in the experiment for 30 days was as shown in the following Table 2.
TABLE 2
Total phosphorus removal/% Total nitrogen removal/% COD removal rate/% SS removal rate/%
Example 1 95 78 92 99％
Comparative example 1 92 42 65 97％
Comparative example 2 37 26 74 80％
Test example 3
The starting process of the microorganism water quality purifying filter tank is the same as that of test example 1.
The purifying effect of the microorganism water quality purifying filter tank on black and odorous water body is tested, and the method comprises the following steps:
The simulated wastewater with the total nitrogen concentration of 200mg/L was injected into the devices of example 1 and comparative examples 1-2, and the wastewater was operated in an intermittent water inlet and outlet mode, the hydraulic retention time was 24 hours, and the reactor effluent was taken every day to detect nitrogen, phosphorus and COD, and the average treatment effect in the experiment for 30 days was as shown in the following Table 3.
TABLE 3 Table 3
Total phosphorus removal/% Total nitrogen removal/% COD removal rate/% SS removal rate/%
Example 1 90 95 94 96％
Comparative example 1 90 63 50 95％
Comparative example 2 30 55 76 86％
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (5)

1. The microbial water quality purifying and filtering tank comprises a tank body, wherein the tank body is sequentially divided into a vertical flow sedimentation zone (1), an aeration aerobic zone (2) and an anaerobic purifying zone (3) from bottom to top;
The vertical flow sedimentation zone (1) comprises a sedimentation mud discharging bucket (11) arranged at the bottom of the tank body, and a first supporting steel frame (12) is arranged at the top of the sedimentation mud discharging bucket (11); a water distribution aeration mechanism (10) is arranged on the first support steel frame (12); a second support steel frame (13) is arranged above the water distribution aeration mechanism (10), and a first three-phase separator (14) is arranged on the second support steel frame (13);
The aeration aerobic zone (2) comprises a binding band type packing (21), and the upper end of the binding band type packing (21) is fixed on a fourth support steel frame (22); the aeration aerobic zone (2) further comprises a third support steel frame (23), the third support steel frame (23) is positioned below the fourth support steel frame (22), and the third support steel frame (23) is used for fixing the binding band type filler (21);
The anaerobic purification zone (3) comprises an anaerobic filler module (31), anaerobic filler in the anaerobic filler module (31) is arranged on a fourth support steel frame (22), a fifth support steel frame (32) is arranged at the top end of the anaerobic filler module (31), and a three-phase separator II (33) is arranged on the fifth support steel frame (32); the anaerobic filler module (31) consists of water treatment filler; the water treatment filler is formed by uniformly mixing pyrite, calcium carbonate, sodium alginate and active carbon in a mass ratio of 100:5:2:1;
the water distribution aeration mechanism (10) comprises two aeration distribution pipes (16) and at least one water inlet distribution pipe (15), wherein the two aeration distribution pipes (16) are arranged in a crisscross manner, the intersection is vertically communicated with an aeration main pipe (24), and the aeration main pipe (24) passes through the top of the tank body and is connected with an aeration pump (25); a water inlet distribution pipe (15) is inserted between adjacent aeration distribution pipes (16), and the water inlet distribution pipe (15) is communicated with a water inlet main pipe; the aeration distribution pipe (16) is positioned above the water inlet distribution pipe (15); the included angle between the water inlet distribution pipe (15) and the aeration distribution pipe (16) is 45 ℃; at least one aeration head (17) which is vertically upwards arranged is arranged on the aeration distribution pipe (16); at least one outflow pipe (18) which is vertically arranged downwards is arranged on the water inlet distribution pipe (15).
2. The microbial water purification canister of claim 1,
The sedimentation sludge discharge hopper (11) is provided with a blow-down pipe (19), and the blow-down pipe (19) is positioned at the lower part of the sedimentation sludge discharge hopper (11).
3. The microbial water purification canister of claim 1,
The anaerobic purification zone (3) further comprises a sixth support steel frame (34), and an overflow weir (35) is arranged on the sixth support steel frame (34).
4. The microbial water purification canister of claim 1,
The first support steel frame (12), the second support steel frame (13), the third support steel frame (23), the fourth support steel frame (22), the fifth support steel frame (32) and the sixth support steel frame (34) are respectively provided with a support block for supporting the steel frames, and the support blocks are fixedly connected with the tank body.
5. The microbial water purification canister of claim 1,
The second support steel frame (13), the third support steel frame (23), the fourth support steel frame (22), the fifth support steel frame (32) and the sixth support steel frame (34) are support steel frames which are hollowed.
CN202210301248.6A 2022-03-25 2022-03-25 Microorganism water quality purifying filter tank Active CN114702202B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110902945A (en) * 2019-11-27 2020-03-24 苏州科技大学 Integrated sewage treatment method
CN211111294U (en) * 2019-11-15 2020-07-28 江苏国盛华清环保科技有限公司 Vertical flow tower type bioreactor
CN111576339A (en) * 2020-05-12 2020-08-25 中国城市建设研究院有限公司 Ecological revetment for strengthening treatment of black and odorous water body by microorganisms
CN213652004U (en) * 2020-10-21 2021-07-09 北京新林水务科技有限公司 Negative pressure type denitrification biological aerated filter reactor
CN217709159U (en) * 2022-03-25 2022-11-01 中国城市建设研究院有限公司 Water quality purification filter tank

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211111294U (en) * 2019-11-15 2020-07-28 江苏国盛华清环保科技有限公司 Vertical flow tower type bioreactor
CN110902945A (en) * 2019-11-27 2020-03-24 苏州科技大学 Integrated sewage treatment method
CN111576339A (en) * 2020-05-12 2020-08-25 中国城市建设研究院有限公司 Ecological revetment for strengthening treatment of black and odorous water body by microorganisms
CN213652004U (en) * 2020-10-21 2021-07-09 北京新林水务科技有限公司 Negative pressure type denitrification biological aerated filter reactor
CN217709159U (en) * 2022-03-25 2022-11-01 中国城市建设研究院有限公司 Water quality purification filter tank

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