CN206783409U - Administer the gravity biological selector of continuous flow biological reaction device filamentous bulking of activated sludge - Google Patents

Administer the gravity biological selector of continuous flow biological reaction device filamentous bulking of activated sludge Download PDF

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Publication number
CN206783409U
CN206783409U CN201720112532.3U CN201720112532U CN206783409U CN 206783409 U CN206783409 U CN 206783409U CN 201720112532 U CN201720112532 U CN 201720112532U CN 206783409 U CN206783409 U CN 206783409U
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China
Prior art keywords
reaction tank
reaction
delivery port
sludge
continuous flow
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Expired - Fee Related
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CN201720112532.3U
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Chinese (zh)
Inventor
罗亚红
李冬
鲍林林
李晓品
李康丽
任倩
张沁钰
邢璐伊
高飞燕
张�杰
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Henan Normal University
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Henan Normal University
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The utility model discloses a kind of gravity biological selector for administering continuous flow biological reaction device filamentous bulking of activated sludge, including the reaction tank that bottom is pyramidal structure, bottom is provided between reaction tank water inlet and reaction tank delivery port to the inclined mud guard in reaction tank delivery port side, reaction tank water inlet connects the delivery port of continuous flow biological reaction device reaction zone by connecting pipe, reaction tank delivery port connects the sedimentation basin of continuous flow biological reaction device reaction zone by connecting pipe, the bottom of reaction tank is connected with mud return line and discharge pipeline respectively by sludge carrier pipe, the mud return line connects the anaerobism section of continuous flow biological reaction device, the bottom of reaction tank is provided with microporous aeration disc.The utility model efficiently solves that existing filamentous bulking of activated sludge control technology efficiency is low and narrow sex chromosome mosaicism, and it is flexible that aeration opens/closed cycle set, eluriates frequent, governance process more high-efficiency environment friendly.

Description

Administer the gravity biological selector of continuous flow biological reaction device filamentous bulking of activated sludge
Technical field
The utility model belongs to activated sludge sewage technical field of water treatment, and in particular to one kind administers continuous stream biology The gravity biological selector of reactor filamentous bulking of activated sludge.
Background technology
Active sludge treatment process is a kind of sewage disposal of each pollutant in microbial degradation water using in sludge Technology, because of the features such as its applicability is wide, environment-friendly and manageability by China's major part sewage plant use, as anaerobic-anoxic- It is aerobic(A2/O)With oxidation ditch process etc..However, because microbiologic population is the core of Wastewater Treated by Activated Sludge Process, therefore, such The Operating ettectiveness of technique is easily influenceed and changed by extraneous factor.Such as in low organic loading, low DO concentration and enrich Under the conditions of nitrogen, phosphorus, activated sludge easily induces a large amount of trichobacteria breedings, filamentous bulking of activated sludge occurs, serious situation can also Cause the collapse of processing system.Filamentous bulking of activated sludge problem annoyings active sludge treatment process always.At present, for thread dirt The improvement of mud expansion mainly uses two class methods:First, universal method(non-specific methods), including add wadding Solidifying agent, ozone, chlorine etc.;Second, specificity method(specific methods), including improve organic loading, increase aeration and Different kind organism selector etc. is set.But due to the complicated variety of der Pilz species, the quick improvement of filamentous bulking of activated sludge is so far Still not yet make a breakthrough.
The utility model make use of the general character directly perceived of all kinds of der Pilzs under the conditions of filamentous bulking of activated sludge, including settling property, Morphological feature, devise a kind of new gravity biological selector.Normal active pollution index, der Pilz conduct inside it Skeleton determinate growth, and the Sludge Surface of filamentous bulking extends the mycelia largely extended, not only density reduces, also easy adsorbed gas Bubble, reduce flco settling velocity.The biological selector utilizes terrestrial gravitation field action, by every second periodicity short-time aeration/heavy Shallow lake process, sedimentation cycle initial stage constantly eluriate elongation outside sludge blanket surface mycelia, sedimentation function difference the thread sludge of lightweight And scum silica frost, and the sludge reflux that will comparatively fast sink to the bottom, Sludge Property in Continuous optimization system, quickly administer filamentous bulking of activated sludge.This Utility model avoids traditional biological selector based on the suppression principle to the changeable physiological property of der Pilz, with more generality and High efficiency.
The content of the invention
Existing filamentous bulking of activated sludge control technology efficiency is low and narrow sex chromosome mosaicism provides one to solve for the utility model Kind administers the gravity biological selector of continuous flow biological reaction device filamentous bulking of activated sludge.
The utility model adopts the following technical scheme that to solve above-mentioned technical problem, and it is thread to administer continuous flow biological reaction device The gravity biological selector of sludge bulking, it is characterised in that including the reaction tank that bottom is pyramidal structure, the top of the reaction tank Be provided with provided with relative reaction tank water inlet and reaction tank delivery port, between reaction tank water inlet and reaction tank delivery port bottom to The inclined mud guard in reaction tank delivery port side, reaction tank water inlet connect continuous flow biological reaction device reaction zone by connecting pipe Delivery port, reaction tank delivery port by connecting pipe connect continuous flow biological reaction device reaction zone sedimentation basin, reaction tank Bottom is connected with mud return line and discharge pipeline respectively by sludge carrier pipe, wherein sludge carrier pipe, mud return line and row Ball valve is respectively equipped with mud pipe, the mud return line connects the anaerobism section of continuous flow biological reaction device, and reaction tank is given birth to continuous stream The thing reactor sedimentation basin free surface discrepancy in elevation is 50-70cm, makes the returned sludge in mud return line with the precipitation in reaction tank Based on sludge, the bottom of reaction tank is provided with microporous aeration disc, and the microporous aeration disc is connected by tracheae with air compressor machine, edge on tracheae Airintake direction is sequentially provided with magnetic valve and spinner flowmeter, and wherein magnetic valve is controlled by microcomputer time controller.
Further preferably, the cross section on the reaction tank top is square, reaction tank water inlet and reaction tank delivery port Relative reaction tank side wall upper part is respectively arranged at, mud guard top is concordant with the top of reaction tank, and mud guard is positioned adjacent to instead The side of pond water inlet is answered, the mud guard and the angle of reaction tank side wall are 60 °.
Further preferably, the inner side of the reaction tank delivery port be provided with surround reaction tank delivery port triangle downflow weir or Trapezoidal downflow weir.
Compared with existing filamentous bulking of activated sludge control technology, the utility model has the advantages that:Sludge can be eluriated In various undue growths, difficult sedimentation trichobacteria, application is more universal, the function of normal growth trichobacteria and pollutant removal Bacterium is retained, more safety and environmental protection, and it is flexible that aeration opens/closed cycle set, eluriates frequent, and der Pilz governance efficiency is high.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is Fig. 1 cut away left side view;
Fig. 3 is that row eluriates thread sludge on the utility model(a)With bottom returned sludge(b)Microscopy contrast images.
In figure:1st, reaction tank water inlet, 2, mud guard, 3, microporous aeration disc, 4, ball valve, 5, downflow weir, 6, spinner Meter, 7, mud return line, 8, magnetic valve, 9, microcomputer time controller, 10, reaction tank delivery port, 11, air compressor machine, 12, discharge pipeline.
Embodiment
Particular content of the present utility model is described in detail with reference to accompanying drawing.As shown in Fig. 1, continuous flow biological reaction device is administered The gravity biological selector of filamentous bulking of activated sludge, including the reaction tank that bottom is pyramidal structure, the top of the reaction tank is provided with phase To reaction tank water inlet 1 and reaction tank delivery port 10, between reaction tank water inlet 1 and reaction tank delivery port 10 be provided with bottom to The inclined mud guard 2 in the side of reaction tank delivery port 10, reaction tank water inlet 1 are anti-by connecting pipe connection continuous flow biological reaction device The delivery port in area is answered, reaction tank delivery port 10 connects the sedimentation basin of continuous flow biological reaction device reaction zone by connecting pipe, instead Ying Chi bottom is connected with mud return line 7 and discharge pipeline 12 respectively by sludge carrier pipe, and wherein sludge carrier pipe, sludge return Ball valve 4 is respectively equipped with flow tube 7 and discharge pipeline 12, the mud return line 7 connects the anaerobism section of continuous flow biological reaction device, reaction Pond and the continuous flow biological reaction device sedimentation basin free surface discrepancy in elevation are 50-70cm, make the returned sludge in mud return line 7 with anti- Based on Ying Chizhong precipitating sludge, the bottom of reaction tank is provided with microporous aeration disc 3, and the microporous aeration disc 3 passes through tracheae and pneumatics Machine 11 is connected, and is sequentially provided with magnetic valve 8 and spinner flowmeter 6 along airintake direction on tracheae, wherein magnetic valve 8 is determined by micro computer When device 9 control, the cross section on the reaction tank top is square, and reaction tank water inlet 1 and reaction tank delivery port 10 are set respectively Relative reaction tank side wall upper part is placed in, the top of mud guard 2 is concordant with the top of reaction tank, and mud guard 2 is positioned adjacent to reaction tank The side of water inlet 1, the mud guard 2 and the angle of reaction tank side wall are 60 °, and the inner side of the reaction tank delivery port 10 is provided with bag Enclose the trapezoidal downflow weir 5 of reaction tank delivery port 10.
The utility model is connected use with bioreactor under the conditions of continuous stream, plays quick suppress in bioreactor The effect of filamentous bulking of activated sludge;It is used to control equipped with spinner flowmeter on tracheae and is aerated flow, is connected on tracheae equipped with magnetic valve Microcomputer time controller is opened the/closed cycle phase with accurate setting aeration, and reaction tank water inlet and reaction tank delivery port are on reaction tank top It is contour to be oppositely arranged, in order to prevent that current are short-circuit, promote sludge settling, set between reaction tank water inlet and reaction tank delivery port Mud guard, gravity biological selector start, and the thread sludge of lightweight is eluriated during layering and precipitating from reaction tank delivery port, non-swollen Swollen sludge is screened backflow, and sludge is gradually optimized in bioreactor.
Gravity biological selector of the present utility model is arranged on after continuous bioreactor reaction zone, and bioreactor sinks Before the pond of shallow lake, it is therefore an objective to collect the filamentous bulking sludge flowed into from bioreactor reaction zone, and then gravity screens, and eluriates Filamentous bulking sludge is directly discharged into the sedimentation basin of bioreactor from the reaction tank delivery port on the biological selector top, then entirely Portion's discharge system, is not refluxed;Sludge reflux in above-mentioned biological selector is to bioreactor front end, for bioreactor The lasting inoculation of biochemical reaction;It is 1-2min, mainly to entering in short-term that the aeration unlatching cycle of above-mentioned timing aerator, which is, The filamentous bulking sludge agitation in Ru Gai areas ensures precipitation to remove attachment microbubble;It is 29- when the aeration closing cycle is long 59min, the mud-water separation stage for closing outlet are the sludge screening and elutriation to the different beds of precipitation, under gravity, are suspended In upper strata or the mostly thread sludge of lightweight and the scum silica frost of floating, discharged with current, and comparatively fast sink to the more of biological selector bottom For heavier unexpansive and microdilatancy sludge, it is back in bioreactor, middle and later periods precipitate phase is mainly anti-to biology The sludge for answering device to flow into is collected, concentrates and flowed back.
Carrying out practically process of the present utility model is:Reaction tank water inlet and A2The delivery port of/O process reactor aerobic sections It is connected, reaction tank delivery port and A2The sedimentation basin of/O reactors connects, and mud return line is connected into A2The anaerobism section of/O reactors, return Stream sludge is conveyed by peristaltic pump, closes A2/ O reactors clarifier sludge flows back, and sludge all discharges in sedimentation basin during operation, from A2The muddy water mixed solution that/O process reactors flow into sludge in the presence of mud guard to taper storage bucket precipitation, sets micro computer Timer make aeration open/the closed cycle phase is 1/59min/min, open the ball on the ball valve and mud return line on sludge carrier pipe Valve, lightweight filamentous bulking sludge and scum silica frost enter heavy during Periodic precipitation from reaction tank delivery port in gravity biological selector Shallow lake pond(Upper row is eluriated in thread sludge microscopy image such as Fig. 3(a)It is shown), unexpansive sludge comparatively fast by mud return line returned by precipitation It flow to A2/ O reactor anaerobism sections(In the microscopy image such as Fig. 3 of bottom returned sludge(b)It is shown).Regulate and control the ball valve on discharge pipeline It is 9d to make sludge age, after running 20d, A2The sludge volume index of sludge in/O reactors(SVI)It is down to by 400-450mL/g 90-95mL/g, sludge concentration 3000-3500mg/L, sludge settling performance recovery is normal, and filamentous bulking of activated sludge is effectively pressed down System.
General principle of the present utility model, principal character and advantage has been shown and described above, it is new not departing from this practicality On the premise of type spirit and scope, the utility model also has various changes and modifications, and these changes and improvements both fall within requirement and protected The scope of the utility model of shield.

Claims (3)

1. administer continuous flow biological reaction device filamentous bulking of activated sludge gravity biological selector, it is characterised in that including bottom for cone The reaction tank of shape structure, the top of the reaction tank are provided with relative reaction tank water inlet and reaction tank delivery port, reaction tank water inlet Pass through connection to the inclined mud guard in reaction tank delivery port side, reaction tank water inlet provided with bottom between mouth and reaction tank delivery port Pipeline connects the delivery port of continuous flow biological reaction device reaction zone, and reaction tank delivery port connects continuous stream biology by connecting pipe The sedimentation basin of reactor reaction zone, the bottom of reaction tank are connected with mud return line and discharge pipeline respectively by sludge carrier pipe, Ball valve wherein is respectively equipped with sludge carrier pipe, mud return line and discharge pipeline, mud return line connection continuous stream biology is anti- The anaerobism section of device is answered, reaction tank and the continuous flow biological reaction device sedimentation basin free surface discrepancy in elevation are 50-70cm, make mud return line In returned sludge based on the precipitating sludge in reaction tank, the bottom of reaction tank is provided with microporous aeration disc, the microporous aeration disc It is connected by tracheae with air compressor machine, magnetic valve and spinner flowmeter is sequentially provided with along airintake direction on tracheae, wherein magnetic valve leads to Cross microcomputer time controller control.
2. the gravity biological selector according to claim 1 for administering continuous flow biological reaction device filamentous bulking of activated sludge, its It is characterised by:The cross section on the reaction tank top is square, and reaction tank water inlet and reaction tank delivery port are respectively arranged at Relative reaction tank side wall upper part, mud guard top is concordant with the top of reaction tank, and mud guard is positioned adjacent to reaction tank water inlet Side, the angle of the mud guard and reaction tank side wall is 60 °.
3. the gravity biological selector according to claim 1 for administering continuous flow biological reaction device filamentous bulking of activated sludge, its It is characterised by:The inner side of the reaction tank delivery port is provided with the triangle downflow weir for surrounding reaction tank delivery port or trapezoidal overflow Weir.
CN201720112532.3U 2017-02-07 2017-02-07 Administer the gravity biological selector of continuous flow biological reaction device filamentous bulking of activated sludge Expired - Fee Related CN206783409U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720112532.3U CN206783409U (en) 2017-02-07 2017-02-07 Administer the gravity biological selector of continuous flow biological reaction device filamentous bulking of activated sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720112532.3U CN206783409U (en) 2017-02-07 2017-02-07 Administer the gravity biological selector of continuous flow biological reaction device filamentous bulking of activated sludge

Publications (1)

Publication Number Publication Date
CN206783409U true CN206783409U (en) 2017-12-22

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Family Applications (1)

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Granted publication date: 20171222

Termination date: 20200207