CN112897685B - Continuous flow operation method for promoting rapid formation of aerobic granular sludge - Google Patents
Continuous flow operation method for promoting rapid formation of aerobic granular sludge Download PDFInfo
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention discloses a continuous flow reactor device for promoting rapid formation of aerobic granular sludge and an operation method thereof. The movable baffle plate enables the gas exposed by the aeration disc to flow directionally, so that the mud-water mixture is forced to do a longitudinal reciprocating S-shaped flow state in the aeration area, stronger and more regular hydraulic shearing force is provided for the sludge, the collision and aggregation of microorganisms are promoted, a large amount of extracellular polymers are secreted, and the formation of aerobic granular sludge is promoted. The height of the movable baffle plate positioned in the middle of the double sedimentation tanks determines sedimentation time, and the sedimentation time can be flexibly adjusted in the granulation process, so that sludge is selectively discharged. The invention has simple structure, is flexible and changeable, and can rapidly form aerobic granular sludge under continuous and non-intermittent water inlet and water outlet conditions.
Description
Technical Field
The invention is suitable for the field of sewage biological treatment, in particular to a continuous flow reactor device for promoting the rapid formation of aerobic granular sludge and an operation method.
Background
Aerobic granular sludge is biological particles formed by spontaneous adsorption, aggregation and proliferation of microorganisms in a specific environment, and corresponds to biological group reactions of the microorganisms to living environments. The aerobic granular sludge has the characteristics of compact morphological structure, good sedimentation performance, strong impact resistance (high organic load, toxic substances, water inflow and the like) capability and the like; in addition, the special structural characteristics of the aerobic granular sludge are that the outer layer of the granule is an aerobic environment, the middle layer is an anoxic environment, the inner layer is an anaerobic environment, and the content of organic matters is sequentially reduced from outside to inside, so that the aerobic granular sludge provides rich and good living environments for various microorganisms, and has the function of synchronous denitrification and dephosphorization. The cultivation of aerobic granular sludge in an up-flow sequencing batch reactor mainly depends on the high height-to-diameter ratio (H/D), so that innovations of aerobic granular sludge emergency reactor devices and operation modes are formed in a continuous flow reactor. The invention provides a reactor device and an operation method for rapidly forming granular sludge under continuous flow conditions aiming at granulation of activated sludge.
Disclosure of Invention
The invention aims to provide a continuous flow reactor device and an operation method for promoting rapid formation of aerobic granular sludge.
A continuous flow reactor device for promoting rapid formation of aerobic granular sludge comprises a water inlet system 1, a reactor main body 2, an aeration system 3 and a precipitation system 4. The water inlet system 1 consists of a water inlet tank 1-1, a water inlet lift pump 1-2 and a water inlet flow control device 1-3. The wastewater in the water inlet tank 1-1 is pumped into the reactor main body 2 by the water inlet lift pump 1-2, and the water inlet flow rate is controlled by the water inlet flow control device 1-3. The reactor body 2 is a multi-gallery plug flow type, and a movable baffle 2-1 is arranged on the cross section of the gallery. The aeration system 3 comprises an aeration disc 3-1, a gas flow meter 3-2 and an air compressor 3-3. The air compressor 3-3 is connected with the gas flowmeter 3-2, the gas flowmeter 3-2 is connected with the aeration disc 3-1, and the concentration of dissolved oxygen is controlled by the gas flowmeter 3-2. An aeration disc 3-1 is placed at the bottom of the reactor body 2. The reactor body 2 is connected to a precipitation system 4. The sedimentation system 4 comprises a double sedimentation tank 4-1 (comprising a sedimentation tank-I4-2 and a sedimentation tank-II 4-3, a middle baffle 4-4), a sludge reflux pump 4-5 and a sludge reflux flow control device 4-6. The double sedimentation tank 4-1 is connected with a sludge reflux pump 4-5, and the sludge reflux pump 4-5 is connected with the reactor main body 2. The sludge reflux pump 4-5 pumps the reflux sludge of the double sedimentation tanks 4-1 into the reactor main body 2, and the sludge reflux flow control device 4-6 controls the sludge reflux flow rate.
A continuous flow reactor device for promoting the rapid formation of aerobic granular sludge is characterized in that:
(1) Setting the water flow rate as Q and the unit as L/d; COD content of the inlet water is C, and the unit is g/L; the effective volume of the reactor is V, and the unit is L; the volumetric load of the reactor is CQ/V in gCOD/(L.d).
(2) The number of baffles 2-1 in the reactor body 2 is x+1 in units of one, and the volumetric load of the reactor/the number of baffles should satisfy the formula CQ/vx=0.2.
(3) When the baffles are placed, the first baffle is an overflow baffle for isolating the bottom of the reactor, the top of the baffle is 20-50mm below the liquid level, the second baffle is a flow isolation baffle for isolating the top of the liquid level of the reactor, the bottom of the baffle is 20-50mm above the bottom of the reactor, the third baffle is an overflow baffle for isolating the bottom of the reactor, the top of the baffle is 20-50mm below the liquid level, and so on. The distance between the two baffles is d, the unit is mm, the effective height of the liquid level is h, the unit is mm, and h/d=3-7 is ensured.
(4) The mud-water mixture passes through the reactor main body2 overflows into a sedimentation tank-I4-2, the sedimentation time of the sedimentation tank-I4-2 is controlled by the height h of a middle baffle 4-4 1 (in dm); the cross-sectional area of the sedimentation tank-I4-2 is S, and the unit is dm 2 The method comprises the steps of carrying out a first treatment on the surface of the Settling time t of settling tank-I4-2 1 ＝1440·Sh 1 Q, in min; the sedimentation time of the sedimentation tank-I4-2 is 5-8min.
(5) The sludge which cannot be settled to the bottom of the sedimentation tank-I4-2 overflows to the sedimentation tank-II 4-3 through the middle baffle plate 4-4, the sedimentation tank-II 4-3 performs a mud-water separation function, the water outlet height is determined by the water outlet valve height, and the water outlet valve height is 5-20mm below the top of the middle baffle plate 4-4.
The specific operation method for promoting the rapid formation of the aerobic granular sludge comprises the following steps:
step 1: inoculating activated sludge and keeping the stable operation of the reactor system, wherein the initial sludge concentration of the main reactor 2 is 1000-3000mg/L.
Step 2: starting a water inlet lifting pump 1-2 and a water inlet flow control device 1-3, pumping the sewage in a water inlet tank 1-1 into a reactor main body 2, controlling the pH value of water inlet to be 7.5-8.5, and controlling the temperature of water inlet to be 24.5-25.5 ℃.
Step 3: the gas flowmeter 3-2 and the air compressor 3-3 are started, the gas is blown into the reactor main body 2 through the aeration disc 3-1 in a constant flow mode, and the gas flowmeter 3-2 is adjusted to control the concentration of the dissolved oxygen to be 5-8 mg/L.
Step 4: and starting a sludge reflux pump 4-5 and a sludge reflux flow control device 4-6, pumping the bottom sludge of a sedimentation tank-I4-2 of the double sedimentation tanks 4-1 into the reactor main body 2 in a constant flow manner, and adjusting the sludge reflux flow control device 4-6 to control the sludge reflux amount to be 100%.
Step 5: and opening a water outlet valve of a sedimentation tank II 4-3 of the double sedimentation tanks 4-1 to enable the water discharged from the reactor to flow out of the system.
Step 6: the sludge age is controlled between 10 and 20 days.
Step 7: measuring and calculating various indexes of sludge in the reactor, wherein the specific indexes are as follows: the unit of the sludge concentration MLSS is mg/L; the unit of the sludge volume index SVI is mL/g; particle size in μm; the pollutant removal rate is expressed in%.
Step 8: when the particle size reaches 250-300 mu m, 2-4 movable baffles 1-4 are additionally arranged, the formula CQ/Vx=0.2 is not considered, but the distance between the two baffles still needs to meet h/d=3-7, meanwhile, the height of the middle baffle 4-4 is reduced to enable the sedimentation time of the sedimentation tank-I4-2 to be 2-5min, and the height of a water outlet valve is reduced to be 5-20mm below the top of the middle baffle 4-4.
The invention has the advantages that:
(1) The movable plugboard enables the continuous flow reactor to be flexibly regulated and controlled, and the shearing force is timely regulated according to the quality of the inlet water and the granulation process;
(2) The movable plugboard enables the continuous flow reactor to provide strong hydraulic shear force for the sludge under the condition of lower H/D, so that granulation is promoted;
(3) The invention effectively solves the problems of small flocs, poor sedimentation performance, sludge loss, large occupied area and the like in the biological treatment of the activated sludge method.
(4) The invention combines the granular sludge technology with the continuous flow reactor, has simple reactor configuration, can be applied to actual products, and has strong engineering value.
The beneficial effects of the invention are as follows:
(1) The invention has simple structure and convenient operation, can reduce the capital cost and has practical engineering value.
(2) The invention has general applicability and can be used for various water quality treatments.
(3) The invention can reduce the turbidity of the effluent, improve the removal condition of pollutants and prevent the occurrence of sludge deterioration and loss.
(4) The invention has stronger practical engineering value and can provide theoretical support and technical reference for the application of the granular sludge in continuous flow sewage treatment plants in the future.
Drawings
FIG. 1 is a flow chart of the present invention.
Fig. 2 is a schematic diagram of a board plug according to the present invention.
In the figure, the aeration area of the reactor is 1-a movable plugboard, a 3-double sedimentation tank, a 3-1-sedimentation tank-I, a 3-2-sedimentation tank-II, a 4-water inlet tank, a 5-water inlet valve, a 6-water inlet lifting pump, a 7-water pipe, an 8-air compressor, a 9-air pipe, a 10-gas flowmeter, an 11-aeration disc, a 12-sampling valve, a 13-water outlet tank, a 14-aeration area water outlet valve, a 15-sludge backflow water outlet valve, a 16-sludge backflow water inlet valve, a 17-sludge backflow pump, an 18-sludge discharge valve and a 19-water outlet valve.
As shown in figure 1, the invention relates to a continuous flow reactor device for promoting the rapid formation of aerobic granular sludge, which comprises a reactor main body, a water inlet system, an aeration system, a sediment drainage system and a sludge reflux system.
As shown in FIG. 2, the reactor main body of the invention mainly comprises movable plugboards 2, the number of which is 8, and the number of the plugboards can be flexibly adjusted within 2-8 intervals according to the granulation process.
Examples
The technical implementation case of the present invention is further described with reference to the accompanying drawings and the following examples, and the present invention is not limited to the following embodiments.
The continuous flow reactor device and the operation method for promoting the rapid formation of the aerobic granular sludge can realize the rapid granulation of the activated sludge under the continuous water inlet and outlet condition, and have the advantages of high granular sludge yield, low energy consumption and stable water quality of the effluent.
A continuous flow reactor device for promoting the rapid formation of aerobic granular sludge is as follows:
(1) The water inflow rate q=32l/d, the COD concentration c=0.5 g/L, and the reactor volume v=20l, the organic load CQ/v=0.8 gccod/(l·d).
(2) As can be seen from the formula CQ/vx=0.2, the number of baffles 1-4 in the reactor body 2 is 5.
(3) When the baffles are placed, the first baffle is an overflow baffle for isolating the bottom of the reactor, the top of the baffle is 20mm below the liquid level, the second baffle is a flow isolation baffle for isolating the top of the liquid level of the reactor, the bottom of the baffle is 20mm above the bottom of the reactor, the third baffle is an overflow baffle for isolating the bottom of the reactor, the top of the baffle is 20mm below the liquid level, and so on. The effective height h=360 mm of the liquid surface, taking h/d=5, the distance d=90 mm between the baffles.
(4) The mud-water mixture overflows into a sedimentation tank-I4-2 of the double sedimentation tank 4-1 through a water outlet 14 of the reactor main body 2, and the cross section area S=0.5 dm of the sedimentation tank-I4-2 2 Sedimentation time t of sedimentation tank-I 1 Taking 5min, and according to formula t 1 ＝1440·Sh 1 Height h of middle baffle of double sedimentation tank 4-1 1 ＝21mm。
(5) After the sedimentation rate of the sedimentation tank-I4-2 is selected, the sludge which cannot be settled to the bottom of the sedimentation tank-I4-2 within 3-5min overflows to the sedimentation tank-II 4-3 through a middle baffle, the sedimentation tank-II 4-3 performs a mud-water separation function, and the height of a water outlet valve is 11mm.
The specific operation method for promoting the rapid formation of the aerobic granular sludge comprises the following steps:
step 1: inoculating activated sludge and keeping the reactor system stably running, wherein the initial sludge concentration is 2000mg/L.
Step 2: starting a water inlet lifting pump 1-2 and a water inlet flow control device 1-3, pumping the sewage in a water inlet tank 1-1 into a reactor main body 2 by a constant flow pump, controlling the pH value of water inlet to be 7.5-8.0, and controlling the temperature of water inlet to be 24.5-25.5 ℃.
Step 3: the gas flowmeter 3-2 and the air compressor 3-3 are started, the gas is blown into the reactor main body 2 through the aeration disc 3-1 at constant flow, and the gas flowmeter 3-2 is adjusted to control the concentration of the dissolved oxygen at 7mg/L.
Step 4: and starting a sludge reflux pump 4-5 and a sludge reflux flow control device 4-6, pumping the bottom sludge of a sedimentation tank-I4-2 of the double sedimentation tanks 4-1 into the reactor main body 2 in a constant flow manner, and adjusting the sludge reflux flow control device 4-6 to control the sludge reflux amount to be 100%.
Step 5: and opening a water outlet valve of a sedimentation tank II 4-3 of the double sedimentation tanks 4-1 to enable the water discharged from the reactor to flow out of the system.
Step 6: sludge age was controlled at 20d.
Step 7: measuring and calculating various indexes of sludge in the reactor, wherein the specific indexes are as follows: the unit of the sludge concentration MLSS is mg/L; the unit of the sludge volume index SVI is mL/g; particle size in μm; the pollutant removal rate is expressed in%.
Step 8: when the particle size reaches 300 mu m, 2 movable plugboards 1-4 are additionally arranged in the reactor main body 2, the distance is still 90mm, the height of the middle baffle 4-4 is 8.4mm, the sedimentation time is 2min, and the height of the water outlet valve is 5mm.
The movable plugboard strengthens the hydraulic shear force applied to the sludge, the setting of the double sedimentation tanks strengthens the selective capacity of the sedimentation speed of the sludge, mature particles are formed after the reactor is operated for 25 days, the particle size of the particles is 380 mu m, the removal rate of COD is more than 95%, and NH 4 + The removal rate of N is more than 99 percent. Experimental results prove that the invention can rapidly and efficiently realize aerobic granular sludge in the continuous flow reactor.
Claims (1)
1. The device used in the method comprises a reactor main body, a water inlet system, an aeration system, a precipitation system and a sludge reflux system, and is characterized in that: the reactor main body is a gallery plug-flow type, 2-8 movable plugboards can be placed on the reactor main body, the movable plugboards divide the reactor main body into 2-9 baffle compartments, and an aeration disc is arranged at the bottom of each baffle compartment;
the water inlet system comprises a water inlet at the front end of the aeration zone, a water inlet pipe, a water inlet pump and a water inlet pool, wherein the water outlet of the water inlet pipe is connected with the water inlet at the front end of the aeration zone, the water inlet of the water inlet pipe is connected with the water outlet at the bottom of the water inlet pool, and the water inlet pump is connected with the water inlet at the front end of the aeration zone and the water outlet at the bottom of the water inlet pool through the water inlet pipe;
the sedimentation system comprises a double sedimentation tank, a water outlet valve and a water outlet pipe, wherein the double sedimentation tank is divided into a sedimentation tank-I and a sedimentation tank-II by a movable plugboard in the middle part, the movable plugboard can be fixed in the middle part of the double sedimentation tank, the movable plugboard has 3 different heights, the side of the sedimentation tank-II is provided with 3 water outlet valves with different heights, the water outlet valves are connected with the water outlet pipe, and the water outlet valves have 3 different heights;
the sludge reflux system comprises a sludge water outlet valve, a sludge pipe, a sludge reflux pump and a sludge water inlet valve, wherein the sludge water outlet valve is positioned at the bottom of the sedimentation tank-I, the sludge reflux pump controls the opening and the flow of the sludge reflux, the sludge pipe is connected with the sludge water outlet valve and the sludge water inlet valve through the sludge reflux pump, and the sludge water inlet valve is positioned at the front end of the reactor main body;
characterized in that the reactor device is characterized in that:
(1) Controlling the water inflow to be Q, wherein the unit is L/d; COD content of the inlet water is C, and the unit is g/L; the effective volume of the reactor is V, and the unit is L; the volume load of the reactor is CQ/V, and the unit is gCOD/(L.d);
(2) The number of movable plugboards in the reactor main body is x+1, the unit is one, and the volume load of the reactor/the number of baffles should meet the formula CQ/Vx=0.2;
(3) When the baffles are placed, the first baffle is an overflow baffle for isolating the bottom of the reactor, the top of the baffle is 20-50mm below the liquid level, the second baffle is a flow isolation baffle for isolating the top of the liquid level of the reactor, the bottom of the baffle is 20-50mm above the bottom of the reactor, the third baffle is an overflow baffle for isolating the bottom of the reactor, the top of the baffle is 20-50mm below the liquid level, and so on; the distance between the two baffles is d, the unit is mm, the effective height of the liquid level is h, the unit is mm, and h/d=3-7 is ensured;
(4) The mud-water mixture overflows into a sedimentation tank-I through a water outlet of the reactor main body, and the sedimentation time of the sedimentation tank-I is controlled by the height h of a middle baffle plate 1 Determining; height h 1 The unit is dm; the cross-sectional area of the sedimentation tank-I is S, and the unit is dm 2 The method comprises the steps of carrying out a first treatment on the surface of the Settling time t of settling tank-I 1 =1440·Sh 1 Q, in min; the sedimentation time of the sedimentation tank-I is 5-8min;
(5) The sludge which cannot be settled to the bottom of the sedimentation tank-I overflows to the sedimentation tank-II through a middle baffle, the sedimentation tank-II performs a mud-water separation function, the water outlet height is determined by the height of a water outlet valve, and the water outlet valve is 5-20mm below the top of the middle baffle;
the specific operation method for promoting the rapid formation of the aerobic granular sludge comprises the following steps:
step 1: inoculating activated sludge and keeping the stable operation of a reactor system, wherein the initial sludge concentration of the main reactor is 1000-3000 mg/L;
step 2: starting a water inlet lifting pump and a water inlet flow control device, pumping sewage in a water inlet tank into a reactor main body, and controlling the water inlet temperature of a system to be 24.5-25.5 ℃ and the pH value to be 7.5-8.5;
step 3: starting a gas flowmeter and an air compressor, blowing gas into the reactor main body through the aeration disc in a constant flow manner, and adjusting the gas flowmeter to control the concentration of dissolved oxygen to be 5-8 mg/L;
step 4: starting a sludge reflux pump and a sludge reflux flow control device, pumping the bottom sludge of the sedimentation tank-I into the reactor main body at constant flow, and adjusting the sludge reflux flow control device to control the sludge reflux amount to 100%;
step 5: opening a water outlet valve of the sedimentation tank II to enable the water outlet of the reactor to flow out of the system;
step 6: the sludge age is controlled between 10 and 20 days;
step 7: measuring and calculating various indexes of sludge in the reactor, wherein the specific indexes are as follows: the unit of the sludge concentration MLSS is mg/L; the unit of the sludge volume index SVI is mL/g; particle size in μm; the pollutant removal rate is expressed as a unit;
step 8: when the particle size reaches 250-300 mu m, 2-4 movable baffles are additionally arranged, the formula CQ/Vx=0.2 is not considered, but the distance between the two baffles still needs to meet h/d=3-7, meanwhile, the height of the middle baffle is reduced to enable the sedimentation time of the sedimentation tank-I to be 2-5min, and the height of the water outlet valve is reduced to be 5-20mm below the top of the middle baffle.
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| CN113788541B (en) * | 2021-09-30 | 2022-12-20 | 同济大学 | Method for promoting rapid granulation of anaerobic ammonium oxidation bacteria by using coagulant |
| CN113929207A (en) * | 2021-10-22 | 2022-01-14 | 北京博汇特环保科技股份有限公司 | Continuous flow aerobic granular sludge process for sewage treatment |
| CN113880247A (en) * | 2021-11-17 | 2022-01-04 | 长江生态环保集团有限公司 | Device and method for improving strength of granular sludge |
| CN114031177A (en) * | 2021-12-22 | 2022-02-11 | 北京城市排水集团有限责任公司 | Device for rapidly culturing aerobic granular sludge and operation method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320689A (en) * | 2011-08-05 | 2012-01-18 | 北京城市排水集团有限责任公司 | Continuous flow granular sludge reactor and running method |
| CN206751503U (en) * | 2017-03-29 | 2017-12-15 | 浙江大学 | A kind of device of aerobic sludge quick particle |
| CN107973398A (en) * | 2017-11-24 | 2018-05-01 | 中粮生化能源（衡水）有限公司 | A kind of pusher reaction unit and its cultural method for cultivating aerobic particle mud |
| CN108689486A (en) * | 2018-05-24 | 2018-10-23 | 南开大学 | A kind of continuous flow granular sludge reactor and operation method |
| CN109133337A (en) * | 2018-10-24 | 2019-01-04 | 华北水利水电大学 | A kind of continuous-flow aerobic granular sludge culture and culture and the acclimation method for preparing reaction unit and aerobic particle mud |
| CA3135606A1 (en) * | 2019-04-01 | 2020-10-08 | Carollo Engineers, Inc. | Flow through aerobic granular sludge system and method |
-
2021
- 2021-01-25 CN CN202110093244.9A patent/CN112897685B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320689A (en) * | 2011-08-05 | 2012-01-18 | 北京城市排水集团有限责任公司 | Continuous flow granular sludge reactor and running method |
| CN206751503U (en) * | 2017-03-29 | 2017-12-15 | 浙江大学 | A kind of device of aerobic sludge quick particle |
| CN107973398A (en) * | 2017-11-24 | 2018-05-01 | 中粮生化能源（衡水）有限公司 | A kind of pusher reaction unit and its cultural method for cultivating aerobic particle mud |
| CN108689486A (en) * | 2018-05-24 | 2018-10-23 | 南开大学 | A kind of continuous flow granular sludge reactor and operation method |
| CN109133337A (en) * | 2018-10-24 | 2019-01-04 | 华北水利水电大学 | A kind of continuous-flow aerobic granular sludge culture and culture and the acclimation method for preparing reaction unit and aerobic particle mud |
| CA3135606A1 (en) * | 2019-04-01 | 2020-10-08 | Carollo Engineers, Inc. | Flow through aerobic granular sludge system and method |
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