CN202063766U - Top end gradation particle sludge purification bed - Google Patents

Top end gradation particle sludge purification bed Download PDF

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Publication number
CN202063766U
CN202063766U CN201120144348XU CN201120144348U CN202063766U CN 202063766 U CN202063766 U CN 202063766U CN 201120144348X U CN201120144348X U CN 201120144348XU CN 201120144348 U CN201120144348 U CN 201120144348U CN 202063766 U CN202063766 U CN 202063766U
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CN
China
Prior art keywords
bed
layer
filter
water
grating
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Expired - Fee Related
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CN201120144348XU
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Chinese (zh)
Inventor
张建
刘伟凤
宋阳
任亮
张成禄
徐进
程呈
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Shandong University
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Shandong University
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Priority to CN201120144348XU priority Critical patent/CN202063766U/en
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Publication of CN202063766U publication Critical patent/CN202063766U/en
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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 provides a top end gradation particle sludge purification bed which comprises a bed body, an aeration head, an inner circulating tube, a support screen mesh and a filter material layer; the bottom of the bed body is provided with a water inlet and a gas inlet; the water inlet is arranged above the gas inlet; the upper part of the bed body is provided with a water outlet; the aeration head is arranged at the bottom of the bed body and is connected with the gas inlet; the inner circulating tube is fixedly sleeved above the aeration head in the bed body, and has a gap between the inner wall of the bed body; the support screen mesh is arranged above the inner circulating tube in the bed body; the filter material layer is arranged between the support screen mesh and the water outlet; and the gradation methods of the filter material layer comprise a comprehensive gradation layer, an incomprehensive gradation layer and a non-gradation layer from down to top. The top end gradation particle sludge purification bed prevents particular sludge from flowing out with the outgoing water and being lost, solves the problem of turbid outgoing water of an ordinary particular sludge purification unit and has a simple process, so that the investment is little, the operation and the repair are convenient, the energy is saved and the consumption is low.

Description

Top grating formula granule sludge clean-up bed
Technical field
The utility model relates to a kind of device of disposing of sewage by granule sludge, belongs to the sewage purification technology field.
Background technology
It is a kind of emerging sewage purification technology that the granule sludge method is disposed of sewage, aerobic particle mud have settleability good, can in reactor, keep very high biomass and have biomembranous principal feature and do not need advantages such as filler.By the control operational conditions, i.e. aeration circulation keeps the residence time in the suitable water, just can obtain better decontamination effect improving than common biological sewage treatment method, but also can realize effect such as synchronous nitration and denitrification.
But present granule sludge method is disposed of sewage, because the biological detritus that aerobic particle mud comes off when handling waste water can flow out with water outlet, solid suspended particles content is higher in the water outlet, so that water outlet presents muddiness, unlimpid state, and the particle diameter of granule sludge is generally less, very easy in the water outlet outflow, cause the loss of granule sludge.
Summary of the invention
The utility model is at the existing deficiency that exists by the granule sludge technology of disposing of sewage, and a kind of simple, top grating formula granule sludge clean-up bed that water outlet is limpid is provided.
The utility model adopts following technical proposals to realize:
This top grating formula granule sludge clean-up bed, comprise a body, aeration head, inner circulating tube, support screen cloth and filter material layer, the bottom of bed body is provided with water-in and inlet mouth, water-in is positioned at the inlet mouth top, the top of bed body is provided with water outlet, and aeration head is arranged on the bottom of a body and is connected with inlet mouth; The inner circulating tube suit is fixed on the top of aeration head in the body, and has the gap with bed body inwall; The top of the inherent inner circulating tube of bed body is provided with the support screen cloth, is provided with filter material layer between support screen cloth and the water outlet, and the grating mode of filter material layer is complete grating layer from bottom to top, incomplete grating layer and non-grating layer.
Bed body and inner circulating tube are all cylindrical.
Fully the grating layer is to be that 2: 1 pulverizing concrete body and haydite mixes by volume ratio, and the particle diameter of wherein pulverizing the concrete body is 1mm-2mm, and the particle diameter of haydite is 2mm.
Not exclusively the grating layer is to be that 1: 1 pulverizing concrete body and haydite mixes by volume ratio, and wherein, the particle diameter of pulverizing the concrete body is 3mm-4mm, and the particle diameter of haydite is 4mm, and further absorption and biochemical treatment are from the effusive sewage of complete grating layer.
The grating layer is not made up of the haydite of particle diameter 6mm, and clearence degree is bigger than the lower two layers filter material layer, guarantees that water distribution is even, is convenient to water outlet.
During operation, sewage flows into from bed body bottom water-in, there is the ripe aerobic particle mud after cultivating in right amount bed body inside, by the bottom-up aeration that carries out of bottom aeration head, for the microorganism in the granule sludge provides biochemical reaction necessary oxygen, granule sludge is fluidised form under the promotion of current and air-flow in internal circulation system, constantly circulation oxygenation, at the inner upwelling that forms of inner circulating tube, between inner circulating tube and the external wall of bed, form katabatic drainage, control suitable hydraulic detention time, make granule sludge and sewage in the inner constantly circulation of bed body, contact, the stability of assurance device.Sewage after the processing upwards by the support screen cloth, enters filter material layer under the effect of water inlet hydraulic pressure and aerating apparatus strength pressure.Filter material layer is because of grating mode difference from bottom to top, but most solid suspended particles in the active adsorption water hold back with the effusive granule sludge of water outlet, and under the effect of gravity, make the granule sludge sedimentation that is trapped return clean-up bed.The water outlet of handling is overflowed from filter material layer, thereby makes final outflow water limpid, improves effluent quality.
The utility model has avoided granule sludge to run off with water outlet, and the haydite of filter material layer and pulverizing concrete body can also carry out further biochemical treatment to sewage after having adsorbed biomass, solved the muddy problem of water outlet of plain particles mud refining plant, the required haydite of filter material layer, concrete body wide material sources, with low cost, granule sludge handling property height, technical process is simple, less investment, operating maintenance is convenient, low energy.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the local enlarged diagram of filter material layer in the utility model.
Wherein: 1, water-in, 2, inlet mouth, 3, aeration head, 4, inner circulating tube, 5, the support screen cloth, 6, filter material layer, 7, water outlet, 8, the bed body, 9, grating layer fully, 10, incomplete grating layer, 11, grating layer not.
Embodiment
As shown in Figure 1, top of the present utility model grating formula granule sludge clean-up bed comprises a body 8, aeration head 3, inner circulating tube 4, support screen cloth 5 and filter material layer 6, the bottom of bed body 8 is provided with water-in 1 and inlet mouth 2, and water-in 1 is positioned at the top of inlet mouth 2, and the top of bed body 8 is provided with water outlet 7.Aeration head 3 is arranged on the bottom of a body 8 and is connected with inlet mouth 2.Bed body 8 is all cylindrical with inner circulating tube 4, for synthetic glass or PVC plastics are made, inner circulating tube 4 suits are fixed on a body 8 inside and are positioned at the top of aeration head 3, and certain interval is all arranged with bed body 8 bottoms and inwall, this gap will guarantee that water inlet is upwelling under the strength effect of aeration in inner circulating tube 4, and be katabatic drainage in the gap of between, loop back in the inner circulating tube 4 from the gap of inner circulating tube 4 with bed body 8 bottoms, continue to do upward movement, promptly this gap will guarantee the smooth and easy of internal recycle, avoid the dead band in inner cyclic process as far as possible.In the clean-up bed operational process, aerobic particle mud is with constantly circulation between crack and the inner circulating tube 4 during this time.Granule sludge needs to tame cultivation before entering sewage.The top of bed body 8 inherent inner circulating tubes 4 is provided with support screen cloth 5, is provided with filter material layer 6 between support screen cloth 5 and the water outlet 7.
As shown in Figure 2, filter material layer 6 grating mode from bottom to top is respectively complete grating layer 9, not exclusively grating layer 10 and grating layer 11 not, highly is respectively 6cm, 6cm, 8cm separately.Fully grating layer 9 is to be that 2: 1 pulverizing concrete body and haydite mixes by volume ratio, and the particle diameter of wherein pulverizing the concrete body is 1mm-2mm, and the particle diameter of haydite is 2mm.The concrete body that the representative of solid black circle is pulverized among Fig. 2, the white hollow circle is represented haydite.Pulverize the concrete body and have huge specific surface area, can effectively remove colourity, stink, can remove most organic pollutants and some inorganics in the secondary effluent.Haydite has adsorbed part with the effect that can play similar biofilm carrier after the effusive biomass of sewage, thus further biochemical treatment sewage.Not exclusively grating layer 10 is to be that 1: 1 pulverizing concrete body and haydite mixes by volume ratio, and wherein, the particle diameter of pulverizing the concrete body is 3mm-4mm, and the particle diameter of haydite is 4mm, and further absorption and biochemical treatment are from the effusive sewage of complete grating layer.Grating layer 11 is not made up of the haydite of particle diameter 6mm, and clearence degree is bigger than the lower two layers filter material layer, guarantees that water distribution is even, is convenient to water outlet.
Sewage flows in the bed body 8 from water-in 1, inlet mouth 2 continuous air feed, aeration head 3 can provide the micro-bubble of capacity, thereby granule sludge contacts the back and forms upwelling in the inside of inner circulating tube 4 with sewage, then be katabatic drainage in the outer wall gap of inner circulating tube 4 and clean-up bed body 8 again and get back to inner circulating tube 4, flow thereby form the successive internal recycle.Under the intake pressure effect, the sewage after the processing follows the chip that comes off from granule sludge to pass through support screen cloth 5, enters filter material layer 6.After different gradation mode haydite and pulverizing concrete body successively adsorb filtration, and further biochemical treatment, final outflow water is oozed out from filter material layer 6, flows out from water outlet 7.
Particle in the filter material layer of the present utility model is divided into the not grating of the complete grating of lower floor, the incomplete grating of intermediary and the superiors, and the pollutent in the water can be effectively removed in reasonably combined use, guarantees effluent quality, and system should not be stopped up, the water outlet facility.Avoided granule sludge to run off with water outlet, and the haydite of filter material layer and pulverizing concrete body can also carry out further biochemical treatment to sewage after having adsorbed biomass, the required haydite of filter material layer, concrete body wide material sources, with low cost, granule sludge handling property height, technical process is simple, less investment, operating maintenance is convenient, low energy.

Claims (3)

1. top grating formula granule sludge clean-up bed, comprise a body, aeration head, inner circulating tube, support screen cloth and filter material layer, the bottom of bed body is provided with water-in and inlet mouth, water-in is positioned at the inlet mouth top, the top of bed body is provided with water outlet, and aeration head is arranged on the bottom of a body and is connected with inlet mouth; It is characterized in that: the inner circulating tube suit is fixed on the top of aeration head in the body, and has the gap with bed body inwall; The top of the inherent inner circulating tube of bed body is provided with the support screen cloth, is provided with filter material layer between support screen cloth and the water outlet, and the grating mode of filter material layer is complete grating layer from bottom to top, incomplete grating layer and non-grating layer.
2. top according to claim 1 grating formula granule sludge clean-up bed is characterized in that: described bed body and inner circulating tube are all cylindrical.
3. top according to claim 1 grating formula granule sludge clean-up bed, it is characterized in that: described not grating layer is made up of the haydite of particle diameter 6mm.
CN201120144348XU 2011-05-09 2011-05-09 Top end gradation particle sludge purification bed Expired - Fee Related CN202063766U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120144348XU CN202063766U (en) 2011-05-09 2011-05-09 Top end gradation particle sludge purification bed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120144348XU CN202063766U (en) 2011-05-09 2011-05-09 Top end gradation particle sludge purification bed

Publications (1)

Publication Number Publication Date
CN202063766U true CN202063766U (en) 2011-12-07

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104876330A (en) * 2015-05-15 2015-09-02 中国科学院城市环境研究所 Aerobic granular sludge system construction and operation method for treating culture biogas slurry
CN110975458A (en) * 2019-12-23 2020-04-10 盐城工学院 Internal circulation particle bed dust remover
CN110975459A (en) * 2019-12-23 2020-04-10 盐城工学院 Improved generation inner loop particle bed dust remover
CN111001250A (en) * 2019-12-23 2020-04-14 盐城工学院 Improved low-low temperature electric precipitation desulfurization combined process

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104876330A (en) * 2015-05-15 2015-09-02 中国科学院城市环境研究所 Aerobic granular sludge system construction and operation method for treating culture biogas slurry
CN104876330B (en) * 2015-05-15 2017-11-24 中国科学院城市环境研究所 A kind of aerobic particle mud system constructing and operation method for handling cultivation biogas slurry
CN110975458A (en) * 2019-12-23 2020-04-10 盐城工学院 Internal circulation particle bed dust remover
CN110975459A (en) * 2019-12-23 2020-04-10 盐城工学院 Improved generation inner loop particle bed dust remover
CN111001250A (en) * 2019-12-23 2020-04-14 盐城工学院 Improved low-low temperature electric precipitation desulfurization combined process

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111207

Termination date: 20140509

C17 Cessation of patent right