CN109399876A - A kind of acclimation method with humic acid reducing power activated sludge - Google Patents

A kind of acclimation method with humic acid reducing power activated sludge Download PDF

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Publication number
CN109399876A
CN109399876A CN201710702284.2A CN201710702284A CN109399876A CN 109399876 A CN109399876 A CN 109399876A CN 201710702284 A CN201710702284 A CN 201710702284A CN 109399876 A CN109399876 A CN 109399876A
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tank body
opening
aqds
culture solution
aeration
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CN109399876B (en
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孙井梅
王冬
李檬
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Tianjin University
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Tianjin University
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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
    • C02F11/00—Treatment of sludge; Devices therefor
    • 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
    • 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
    • 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
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
    • C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/06—Nutrients for stimulating the growth of microorganisms
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • 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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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Activated Sludge Processes (AREA)

Abstract

The invention discloses a kind of acclimation methods with humic acid reducing power activated sludge, comprising the following steps: fetches excess sludge from sewage treatment plant, aerobic sludge is settled；Tank body is added in AQDS particle after immobilization, by the sludge injection tank body after sedimentation, continuous flow injects culture solution into tank body, tames in three stages to sludge；It is reoxidized periodically to take out the progress of AQDS particle.The present invention has filled up the blank of humic acid reducing power activated sludge acclimatization method, continuous flow supplies culture solution, prevent concentration of substrate fluctuation excessive, thus holding meanss stable operation, by AQDS immobilization, AQDS is realized to recycle, domestication cost has substantially been saved, using paper-making industrial waste water as culture solution, has had the advantages that handle of both waste water and save the cost, device is simple, and operational management is convenient.

Description

A kind of acclimation method with humic acid reducing power activated sludge
Technical field
The invention belongs to bed mud biochemical processing fields, relate in particular to a kind of with humic acid reducing power activity The acclimation method of sludge.
Background technique
The based technique for in-situ remediation of bed mud is divided into physics, chemistry and biological three categories.Common recovery technique has ecological dredging Technology, soverlay technique in situ, phytoremediation, microbial bacterial agent reparation, chemical agent reparation etc..Although these technologies are imitated in a short time Fruit is obvious, but long-term holding effect is undesirable, in addition introduces excessive chemical agent or inoculating microbe can to water ecological setting There can be some potential threats.
Activated sludge with humic acid reducing power is rich in humic acid reducing bacteria, and humic acid reducing bacteria is a kind of with corruption The microorganism for growing formula respiration capability is widely present in content of organics soil abundant, water body and deposit, can be with humic Matter and humus mode object AQDS are sole electron acceptor, aoxidize gas chromatography and support thalli growth.Humus divides extensively It is distributed in soil, water body and deposit, rich content and can be stabilized, not only in organic and inorganic compound biodegrade It plays an important role in the process, toxic contaminants environment is equally shown to be alternatively arranged as terminal electron acceptor compared with strong tolerance, promote Into the anaerobic biological oxidation of organic matter.Therefore, there is humic acid reducing power activated sludge may advantageously facilitate in water environment for domestication The degradation of heavy metal and organic pollutant is of great significance for the in-situ immobilization of polluted water body, river drift.
Presently, there are only humic acid reducing bacteria cultural method, be in the case where existing humic acid reducing bacteria strain Amplification technique, be a small amount of strain fast culture is gone out to a large amount of bacterium, but for how from excess sludge domestication provided humic The research of the method for sour reducing power activated sludge is still blank.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide one kind to have humic acid reducing power activated sludge Acclimation method.
The present invention is achieved by following technical proposals.
A kind of domesticating device, comprising: tank body, aerated conduit, the first pipeline and aeration tank, the tank body are that a upper end is open Cavity, be formed with one first opening in the lower end of the tank body, first pipeline and first open communication and at this One peristaltic pump is installed on the first pipeline；
One three phase separator is installed in the opening of the tank body, on the tank wall below the three phase separator It is sequentially formed the second opening and third opening, the aeration tank is the cavity of a sealing, and the aeration tank passes through Second pipeline and second open communication simultaneously pass through third pipeline and the third open communication, are being located at second opening Described inner tank wall of lower section and close second opening is fixed with a horizontal supporting plate, is formed on the supporting plate multiple Aperture；A horizontal water distributing plate is fixed in the inner tank wall being located between the supporting plate and first opening, it is described Multiple water distributing pores are formed on water distributing plate；Aeration opening is formed on the aeration tank, the aeration tube road passes through the aeration opening It stretches under the liquid level in the aeration tank, is formed between the inner wall of the aeration opening and the outer wall in the aeration tube road seamed Gap；The three phase separator includes: shell, gas conduit and the gas gathering mask in the shell, and the shell is spacious for a lower end Mouthful cavity, be formed with water outlet on the shell, the gas gathering mask is located in the shell, one end of the gas conduit In outside the tank body, the other end is connected to the gas gathering mask, the gas discharge for collecting the gas gathering mask.
In the above-mentioned technical solutions, the edge of the supporting plate and the inner tank wall are seamlessly connected.
In the above-mentioned technical solutions, the edge of the water distributing plate and the inner tank wall are seamlessly connected.
In the above-mentioned technical solutions, the internal diameter of the shell is greater than the internal diameter of the tank body.
In the above-mentioned technical solutions, a sampling is formed on the tank wall between the first opening and the second opening Mouthful.
In the above-mentioned technical solutions, pump is installed on the third pipeline.
The acclimation method with humic acid reducing power activated sludge based on above-mentioned domesticating device, comprising the following steps:
1) the first domestication stage: the immobilization AQDS particle of yellow is added in tank body, and mud mixed liquid is passed through first In opening injection tank body, water outlet is opened, then first be open by this and be passed through culture solution into the tank body until the culture solution It is discharged to form fluidized state from the water outlet, keeps the fluidized state 220~250 hours, stopping is passed through culture solution and closes First opening；Wherein, when the culture solution rises in the tank body, the upflow velocity of the culture solution is 0.10~0.15m/ h；
The mud mixed liquid the preparation method comprises the following steps: excess sludge is settled so that the MLSS of the excess sludge is (mixed Close liquid sludge concentration) reach 8000~15000mg/L, obtain the mud mixed liquid；
The immobilization AQDS particle uniformly mixes the preparation method comprises the following steps: being added AQDS powder into sodium alginate soln It closes, obtains mixed solution, the mixed solution is instilled into excessive calcium chloride solution, obtained bead is the fixation Change AQDS particle, wherein the mass percentage concentration of the sodium alginate soln is 1.5~2%, the quality of the calcium chloride solution Percentage concentration is 3.5~4%, and mass concentration of the AQDS powder in the sodium alginate soln is 0.4~0.5%, institute The ratio for stating the volume of mud mixed liquid and the quality of AQDS powder in the AQDS particle is 1:20, wherein the unit of quality is G, the unit of volume are L；
In the step 1), the sedimentation time of the excess sludge is 22~25 hours.
In the step 1), the ratio of the capacity of the quality and tank body of sludge in mud mixed liquid in the tank body is injected For (10~20): 1, wherein the unit of quality is g, and the unit of capacity is L.
2) second domestication the stage: open water outlet, be open by described first be passed through into the tank body culture solution until The culture solution is discharged to form fluidized state from the water outlet, keeps the fluidized state 220~250 hours, and stopping is passed through culture Liquid simultaneously closes the first opening；Wherein: when the culture solution rises, upflow velocity of the culture solution in the tank body is 0.2 ~0.21m/h；
3) third tame the stage: open water outlet, be open by described first be passed through into the tank body culture solution until The culture solution is discharged to form fluidized state from the water outlet, keeps the fluidized state 220~250 hours, and stopping is passed through culture Liquid simultaneously closes the first opening, completes domestication；Wherein, when the culture solution rises, rising of the culture solution in the tank body Flow velocity is 0.3~0.31m/h；
In step 1)~3) in, the culture solution is the liquid of 1800~2000mg/L of COD content；Work as immobilization AQDS particle is reduced into orange-red AH2When QDS, AQDS circulate operation, the AQDS circulate operation are carried out are as follows: close first Opening stops being passed through culture solution, makes the tank body natural subsidence until water sludge interface is down to the lower section of the supporting plate, opens the Two openings, by orange-red AH2QDS by it is described second opening drain into aeration tank from the tank body, to the aeration tank into Row Air Exposure, so that AH2QDS is oxidized to the immobilization AQDS particle of yellow；Pass through the aeration tube again to the aeration Nitrogen is passed through in pond, to remove the oxygen in the aeration tank；It is open by third by the fixation of the yellow in the aeration tank Change AQDS particle to be reintroduced back into the tank body, opens the first opening and continue to be passed through culture solution into the tank body.
In the above-mentioned technical solutions, the time for carrying out AQDS circulate operation is to tame the 115th of stage in first~third ~120 hours and the first domestication stage and the second domestication the 220th~249 hour of the stage.
In the above-mentioned technical solutions, the ventilatory capacity of nitrogen is 0.5~1.0m3/ h, duration of ventilation are 0.5~1h.
In the above-mentioned technical solutions, the Air Exposure are as follows: oxygen is passed through into the aeration tank by the aeration tube road Gas, the ventilatory capacity of oxygen are 0.5~1.0m3/ h, duration of ventilation are 0.5~1h.
In the above-mentioned technical solutions, the PH of the culture solution is 6.8~7.2.
In the above-mentioned technical solutions, the hydraulic detention time of culture solution is 15~20 hours in the first domestication stage, The hydraulic detention time of culture solution is 10h in the second domestication stage, and the waterpower of culture solution is stopped in the third domestication stage Staying the time is 7h.
Above-mentioned acclimation method is improving the application in sludge humic acid reducing power, is 15% below by AQDS reduction rate The AQDS reduction rate of sludge rises above equal to 80%.
Compared with the prior art, the present invention has filled up the blank of humic acid reducing power activated sludge acclimatization method, continuously Stream supply culture solution, it is deficient when abundant when preventing concentration of substrate in tank body, reduce fluctuation, is transported so that holding meanss are stablized Row improves domestication efficiency；It by AQDS immobilization, realizes AQDS and recycles, substantially saved domestication cost；Utilize paper maker Industry waste water has the advantages that handle of both waste water and save the cost as culture solution；Device is simple, at low cost, easy to operate, Operational management is convenient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of domesticating device of the invention.
Wherein, 1 is water outlet, and 2 be supporting plate, and 3 be peristaltic pump, and 4 be gas conduit, and 5 be gas gathering mask, and 6 are open for third, 7 be the second opening, and 8 be sample tap, and 9 be water distributing plate, and 10 be the first opening, and 11 be aeration tank, and 12 be tank body, and 13 be pump.
Specific embodiment
In a specific embodiment of the invention, mud mixed liquid the preparation method comprises the following steps: municipal sewage plant will be come from Secondary settling tank excess sludge (aerobic) is settled, and is settled 24 hours, discharge part supernatant, so that the MLSS of the excess sludge (mixed liquor sludge concentration, mixed liquid suspended solids) reaches 14160mg/L, obtains mud mixed liquid.
In the activated sludge with humic acid reducing power, it is rich in humic acid reducing bacteria, humic acid reducing bacteria is one Class has the microorganism of humic formula respiration capability, is widely present in content of organics soil abundant, water body and deposit, energy Enough using humus and humus mode object AQDS as sole electron acceptor, aoxidizes gas chromatography and simultaneously support thalli growth.It is fixed Change uniformly mixing the preparation method comprises the following steps: being added AQDS powder into sodium alginate soln for AQDS particle, obtain mixed solution, uses Syringe instills mixed solution into excessive calcium chloride solution, and obtained bead is immobilization AQDS particle, wherein sea The mass percentage concentration of solution of sodium alginate is 2%, and the mass percentage concentration of calcium chloride solution is 4%, AQDS powder in alginic acid Mass concentration in sodium solution is 0.5%, and the ratio of the quality of AQDS powder is 1 in the volume and AQDS particle of mud mixed liquid: 20, wherein the unit of quality is g, and the unit of volume is L (i.e. every liter of mud mixed liquid need to use 20gAQDS powder)；In this hair In bright technical solution, the entitled anthraquinone -2 of AQDS powder, 6- disulfonic acid sodium are a kind of humic acid mode objects, purchased from the uncommon love of ladder (Shanghai) chemical conversion industry Development Co., Ltd；The AH2QDS is anthraquinone -2, the 6- disulfonic acid sodium of reduction-state.
In a specific embodiment of the invention, in order to improve salvage value, culture solution uses paper-making industrial waste water, takes From paper mill middle-stage wastewater, such waste water characteristic is that wastewater flow rate is big, COD high, and the fibre suspension in waste water is more, and exists and contain Sulphur compound, nitrogenous compound, include a large amount of sulfate reducing bacterias in humic acid reducing bacteria, and the sulfide in waste water can be had Effect handles and is conducive to the domestication of humic acid reducing bacteria.The COD of culture solution will be diluted to 2000mg/L when use, adjusts pH To 7.
The acclimation method with humic acid reducing power activated sludge of the invention is carried out specifically with reference to the accompanying drawing It is bright.
As shown in Fig. 1, comprising: tank body 12, aerated conduit (not shown), the first pipeline and aeration tank 11, tank body For the cavity of upper end opening, the lower end of tank body be formed with one first opening 10, the first pipeline and the first open communication and One peristaltic pump 3 is installed, for making liquid and sludge by the first pipeline pass through the first opening access tube on first pipeline In body.
One three phase separator is installed in the opening of tank body, three phase separator includes: shell, gas conduit 4 and is located at Gas gathering mask 5 in the shell, shell are the cavity (opening of shell is seamlessly connected with the open of tube body) of lower end opening, shell On be formed with water outlet 1, gas gathering mask is located in shell, and one end of gas conduit is located at outside tank body, and the other end is connected to gas gathering mask, Gas discharge for collecting the gas gathering mask.
It has been sequentially formed the second opening 7 and third opening 6 on the tank wall below three phase separator, has exposed Gas pond is the cavity of a sealing, and aeration tank connects by the second pipeline and the second open communication and by third pipeline and third opening It is logical, it is being located at below the second opening and is being fixed with a horizontal supporting plate 2 close to the inner tank wall of second opening, is being used for support Immobilization AQDS particle, the edge and inner tank wall of supporting plate are seamlessly connected, and are formed with multiple apertures (hole of aperture on supporting plate Diameter is less than immobilization AQDS particle)；It is solid in the inner tank wall being located between supporting plate and the first opening in order to improve uniformity Equipped with a horizontal water distributing plate 9, the edge and inner tank wall of water distributing plate are seamlessly connected, and are formed with multiple water distributing pores on water distributing plate；
Aeration opening is formed on aeration tank, aerated conduit is stretched under the liquid level in aeration tank by aeration opening, aeration opening Inner wall and aerated conduit outer wall between formed and have the gap, for making air pressure atmospheric pressure in the aeration tank.
The internal diameter of shell is greater than the internal diameter of tank body.
Preferably, being formed with a sample tap 8 on tank wall between the first opening and the second opening.
Pump 13 is installed on third pipeline.
0.4~0.6m of internal diameter of tank body, tank body 1.5~2.5m of total height, ratio of height to diameter 4:1.
In a specific embodiment of the invention, the tank body dischargeable capacity of above-mentioned domesticating device is 0.3m3；Wherein, it tames Area dischargeable capacity 0.24m3, three phase separator dischargeable capacity 0.06m3。
The acclimation method with humic acid reducing power activated sludge based on above-mentioned domesticating device, comprising the following steps:
1) the first domestication stage: by the immobilization AQDS particle of yellow by the second opening (at this time by the second pipeline from the Removed in two openings) it is added in tank body, according to sludge MLSS measurement result after sedimentation, by 195L sludge under the driving of peristaltic pump Mixed liquor is by the first pipeline and by opening water outlet, passing through again under the driving of peristaltic pump in the first opening injection tank body This first be open be passed through into tank body culture solution until the culture solution be discharged to form fluidized state from water outlet, keep the fluidisation shape State 240 hours, stopping was passed through culture solution and closes the first opening；Wherein, in the first domestication stage when the hydraulic retention of culture solution Between be 15~20 hours, when culture solution rises in tank body, adjust peristaltic pump, make the upflow velocity 0.15m/ of the culture solution h；
In step 1), the ratio for injecting the capacity of the quality and tank body of sludge in mud mixed liquid in tank body is 10:1, Wherein, the unit of quality is g, and the unit of capacity is L.
2) the second domestication stage: opening water outlet, is open by first and is passed through culture solution into tank body until the culture solution It is discharged to form fluidized state from water outlet, keeps the fluidized state 240 hours, stopping is passed through culture solution and closes the first opening (at this point, closing peristaltic pump)；Wherein: the hydraulic detention time of culture solution is 10h in the second domestication stage, when culture solution rises When, peristaltic pump is adjusted, upflow velocity 0.2m/h of the culture solution in tank body is made；
3) third tames the stage: opening water outlet, is open by first and is passed through culture solution into tank body until the culture solution It being discharged to form fluidized state from water outlet, keeps the fluidized state 240 hours, stopping is passed through culture solution and closes the first opening, Domestication is completed, the first opening, the activated sludge after collecting domestication are opened；Wherein, the waterpower of culture solution is stopped in the third domestication stage Staying the time is 7h, when culture solution rises, adjusts peristaltic pump, makes upflow velocity 0.3m/h of the culture solution in tank body；
In step 1)~3) in, when immobilization AQDS particle is reduced into orange-red AH2It (is wherein embedded when QDS AQDS has been reduced to AH2QDS), AQDS circulate operation is carried out, in a specific embodiment of the invention, AQDS is carried out and follows The time of ring operation is to tame stage, the second domestication stage and third first to tame the 120th hour of stage and first Domestication stage and the second domestication the 220th hour of the stage.
AQDS circulate operation are as follows: close the first opening and stop being passed through culture solution, make liquid-solid mixture natural subsidence in tank body Until its water sludge interface is down to the lower section (sedimentation time is 2 hours in the present embodiment) of supporting plate, the second opening is opened, it will be orange red The AH of color2QDS drains into aeration tank by the second opening from tank body, Air Exposure is carried out to aeration tank, so that AH2QDS again by The immobilization AQDS particle for aoxidizing yellowly, realizes recycling for AQDS；Air Exposure are as follows: by aerated conduit to aeration Oxygen is passed through in pond, the ventilatory capacity of oxygen is 0.5m3/ h, duration of ventilation 1h.Nitrogen is passed through into aeration tank by aeration tube again Gas, to remove the oxygen in aeration tank；The ventilatory capacity of nitrogen is 0.5m3/ h, duration of ventilation 1h.In pump (not shown) It under driving, is open by third and the immobilization AQDS particle of the yellow in aeration tank is reintroduced back into tank body, open first Opening continues to be passed through culture solution into tank body.
In a specific embodiment of the invention, in the first domestication stage, when water outlet starts water outlet, from sample tap 20mL mixed liquor is taken out, is added in 80mL test cultures liquid, test cultures liquid contains AQDS the and 1mmol/L lemon of 1mmol/L Sour sodium (solvent is deionized water), is stood after mixing, is measured reduzate in supernatant at 450 nm using spectrophotometer The variation of AH2QDS, measurement in every 2 hours is primary, continuously surveys 12h, and obtaining initial AQDS reduction rate is 9%, shows sludge at this time Humic acid reducing power is weaker.
After the third domestication stage, 20mL mixed liquor is taken out from sample tap 8, is added in 80mL test cultures liquid, is surveyed The examination culture solution AQDS and 1mmol/L sodium citrate (solvent is deionized water) that contains 1mmol/L, stands after mixing, using point Light photometer measures the variation of reduzate AH2QDS in supernatant at 450 nm, and measurement in every 2 hours is primary, continuously surveys 12h, Obtaining AQDS reduction rate is 85%, shows that the humic acid reducing power of sludge is better than domestication at this time after the third domestication stage Before.
According to the present invention in technical solution parameter adjustment, can reach and the consistent property of above-described embodiment, i.e., will AQDS reduction rate is that the AQDS reduction rate of 15% sludge below rises above equal to 80%.
Illustrative description has been done to the present invention above, it should explanation, the case where not departing from core of the invention Under, any simple deformation, modification or other skilled in the art can not spend the equivalent replacement of creative work equal Fall into protection scope of the present invention.

Claims (10)

1. a kind of domesticating device characterized by comprising tank body (12), aerated conduit, the first pipeline and aeration tank (11), institute The cavity that tank body (12) are a upper end opening is stated, one first is formed in the lower end of the tank body (12) and is open (10), described the One pipeline is connected to first opening (10) and is equipped with a peristaltic pump (3) on first pipeline；
One three phase separator is installed in the opening of the tank body (12), tank body (12) side below the three phase separator The second opening (7) and third opening (6) have been sequentially formed on wall, the aeration tank (11) is the cavity of a sealing, The aeration tank (11) is connected to second opening (7) by the second pipeline and is open by third pipeline and the third (6) it is connected to, is being located at below second opening (7) and is being fixed with close to the tank body (12) inner wall of second opening (7) One horizontal supporting plate (2) is formed with multiple apertures on the supporting plate (2)；It is being located at the supporting plate (2) and described first It is fixed with a horizontal water distributing plate (9) on tank body (12) inner wall between opening (10), is formed on the water distributing plate (9) multiple Water distributing pore；It is formed with aeration opening on the aeration tank (11), the aeration tube road stretches to the aeration by the aeration opening Under liquid level in pond (11), is formed and had the gap between the inner wall of the aeration opening and the outer wall in the aeration tube road；
The three phase separator includes: shell, gas conduit (4) and the gas gathering mask (5) in the shell, and the shell is one The cavity of lower end opening is formed with water outlet (1) on the shell, and the gas gathering mask (5) is located in the shell, the gas One end of conduit (4) is located at the tank body (12) outside, and the other end is connected to the gas gathering mask (5), for receiving the gas gathering mask (5) The gas of collection is discharged.
2. domesticating device according to claim 1, which is characterized in that the edge and the tank body of the supporting plate (2) (12) inner wall is seamlessly connected, and the edge and the tank body (12) inner wall of the water distributing plate (9) are seamlessly connected.
3. domesticating device according to claim 1, which is characterized in that the internal diameter of the shell is greater than the tank body (12) Internal diameter, it is described first opening (10) and second be open (7) between tank body (12) side wall on be formed with a sample tap (8), Pump (13) are installed on the third pipeline.
4. the taming and dociling with humic acid reducing power activated sludge based on domesticating device described in any one of claims 1 to 3 Change method, which comprises the following steps:
1) the first domestication stage: the immobilization AQDS particle of yellow is added in tank body (12), and mud mixed liquid is passed through first It is open in (10) injection tank body (12), opens water outlet (1), then by being passed through in first opening (10) Xiang Suoshu tank body (12) Culture solution forms fluidized state until the culture solution is discharged from the water outlet (1), keeps the fluidized state 220~250 hours, Stopping is passed through culture solution and closes the first opening (10)；Wherein, when the culture solution rises in the tank body (12), the training The upflow velocity of nutrient solution is 0.10~0.15m/h；
The mud mixed liquid the preparation method comprises the following steps: excess sludge is settled, so that the MLSS of the excess sludge reaches 8000~15000mg/L obtains the mud mixed liquid；
Uniformly mixing the preparation method comprises the following steps: being added AQDS powder into sodium alginate soln for the immobilization AQDS particle, obtains To mixed solution, the mixed solution is instilled into excessive calcium chloride solution, obtained bead is the immobilization AQDS particle, wherein the mass percentage concentration of the sodium alginate soln is 1.5~2%, the quality hundred of the calcium chloride solution Dividing concentration is 3.5~4%, and mass concentration of the AQDS powder in the sodium alginate soln is 0.4~0.5%, described The ratio of the quality of AQDS powder is 1:20 in the volume of mud mixed liquid and the AQDS particle, wherein the unit of quality is g, The unit of volume is L；
2) the second domestication stage: opening water outlet (1), by being passed through culture in first opening (10) Xiang Suoshu tank body (12) Liquid forms fluidized state until the culture solution is discharged from the water outlet (1), keeps the fluidized state 220~250 hours, stops It is passed through culture solution and closes the first opening (10)；Wherein: when the culture solution rises, the culture solution is in the tank body (12) Upflow velocity be 0.2~0.21m/h；
3) third tames the stage: opening water outlet (1), by being passed through culture in first opening (10) Xiang Suoshu tank body (12) Liquid forms fluidized state until the culture solution is discharged from the water outlet (1), keeps the fluidized state 220~250 hours, stops It is passed through culture solution and closes the first opening (10), complete domestication；Wherein, when the culture solution rises, the culture solution is described Upflow velocity in tank body (12) is 0.3~0.31m/h；
In step 1)~3) in, the culture solution is the liquid of 1800~2000mg/L of COD content；When immobilization AQDS Grain is reduced into orange-red AH2When QDS, AQDS circulate operation, the AQDS circulate operation are carried out are as follows: close the first opening (10) stop being passed through culture solution, the tank body (12) natural subsidence made to be down to the lower section of the supporting plate (2) up to water sludge interface, The second opening (7) is opened, by orange-red AH2QDS drains into aeration tank from the tank body (12) by second opening (7) (11), Air Exposure is carried out to the aeration tank (11), so that AH2QDS is oxidized to the immobilization AQDS particle of yellow；Lead to again It crosses the aeration tube and is passed through nitrogen into the aeration tank (11), to remove the oxygen in the aeration tank (11)；Pass through third The immobilization AQDS particle of yellow in the aeration tank (11) is reintroduced back into the tank body (12) by opening (6), is opened First opening (10) continues to be passed through culture solution in the tank body (12).
5. acclimation method according to claim 4, which is characterized in that in the step 1), the excess sludge sinks Dropping the time is 22~25 hours；In the step 1), inject in the tank body (12) interior mud mixed liquid the quality of sludge with The ratio of the capacity of the tank body (12) is (10~20): 1, wherein the unit of quality is g, and the unit of capacity is L.
6. acclimation method according to claim 5, which is characterized in that carry out AQDS circulate operation time be first~ Third tames the 115th~120 hour of stage and tames the 220th~249 hour of stage in the first domestication stage and second.
7. acclimation method according to claim 6, which is characterized in that the ventilatory capacity of nitrogen is 0.5~1.0m3/ h, when ventilation Between be 0.5~1h.
8. acclimation method according to claim 7, which is characterized in that the Air Exposure are as follows: pass through the aeration tube road Oxygen is passed through into the aeration tank (11), the ventilatory capacity of oxygen is 0.5~1.0m3/ h, duration of ventilation is 0.5~1h, described The PH of culture solution is 6.8~7.2.
9. acclimation method according to claim 8, which is characterized in that the waterpower of culture solution is stopped in the first domestication stage Staying the time is 15~20 hours, and the hydraulic detention time of culture solution is 10h in the second domestication stage, and the third tames rank The hydraulic detention time of culture solution is 7h in section.
10. acclimation method as claimed in claim 4 is improving the application in sludge humic acid reducing power, which is characterized in that The AQDS reduction rate that AQDS reduction rate is 15% sludge below is risen above equal to 80%.
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