CN206089196U - Biological filter system - Google Patents

Biological filter system Download PDF

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Publication number
CN206089196U
CN206089196U CN201621066109.6U CN201621066109U CN206089196U CN 206089196 U CN206089196 U CN 206089196U CN 201621066109 U CN201621066109 U CN 201621066109U CN 206089196 U CN206089196 U CN 206089196U
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China
Prior art keywords
filter system
unit cells
bacteria filter
reflux line
biofilter
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CN201621066109.6U
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奚竹青
尚永红
关艳平
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China Shenhua Coal to Liquid Chemical Co Ltd
China Energy Investment Corp Ltd
Ordos Coal to Liquid Branch of China Shenhua Coal to Liquid Chemical Co Ltd
Original Assignee
China Shenhua Coal to Liquid Chemical Co Ltd
Shenhua Group Corp Ltd
Ordos Coal to Liquid Branch of China Shenhua Coal to Liquid Chemical Co Ltd
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  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

The utility model provides a biological filter system, this biological filter system include consecutive anaerobic biological filter, hold concurrently oxygen biological filter and aerobiont filter pond, and this biological filter system still includes: a backflow pipeline, a backflow pipeline's entry and a backflow pipeline's export are all connected on aerobiont filter pond. Through set up a backflow pipeline on biological filter system's aerobiont filter pond for filtrating to among the aerobiont filter pond is flow back, can further dilute pollutant levels, in order to create suitable nitration environment, improves the utilization efficiency of biological carrier and improves nitration efficiency, and then improve the denitrogenation efficiency of sewage.

Description

Bacteria filter system
Technical field
This utility model is related to field of waste water treatment, in particular to a kind of bacteria filter system.
Background technology
Coal chemical industry high-concentration sewage has high COD (Chemical Oxygen Demand, COD), high ammonia The features such as nitrogen, high bio-toxicity, it is difficult using common biochemical processing method such sewage disposal is up to standard.The direct liquid of Firing Shenhua Coal Change demonstrative project sewage farm and adopt new microbe carrier (Authorization Notice No. is CN 202529912U), it is dirty for this Water energy enough plays preferable treatment effect.However, existing biofilter to the utilization ratio of mentioned microorganism carrier relatively It is low, in order that mentioned microorganism carrier long-period stable operation, the effect of performance maximum, and then had the sewage of high concentration Effect process, urgent need is improved to existing biofilter.
Utility model content
Main purpose of the present utility model is to provide a kind of biofilter, to solve biofilter pair of the prior art The utilization ratio of mentioned microorganism carrier is relatively low, the problem that high concentration sewage can not be effectively addressed.
To achieve these goals, according to one side of the present utility model, there is provided a kind of bacteria filter system, the life Thing filter tank system includes anaerobic biofilter, biological filter with oxygen and the aerobic biofilter being sequentially connected, bacteria filter system Also include:First reflux line, the outlet of the entrance of the first reflux line and the first reflux line is both connected to aerobe filter Chi Shang.
Further, bacteria filter system also includes:Second reflux line, the entrance of the second reflux line is connected to aerobic On biofilter, the outlet of the second reflux line is connected on biological filter with oxygen.
Further, bacteria filter system also includes:3rd reflux line, the entrance of the 3rd reflux line is connected to aerobic Biofilter, the outlet of the 3rd reflux line is connected on anaerobic biofilter.
Further, bacteria filter system also includes:4th reflux line, the entrance of the 4th reflux line and the 4th backflow The outlet of pipeline is both connected on anaerobic biofilter.
Further, anaerobic biofilter, biological filter with oxygen and aerobic biofilter include being sequentially connected in series setting Multiple unit cells.
Further, the grid structure being made up of compound glass steel grating is provided with unit cells.
Further, unit cells bottom is provided with aeration pipeline.
Further, the bottom of unit cells is provided with rake and discharge pipeline, and discharge pipeline is located at the side of rake, and has Towards the opening of rake with collect rake landing sludge.
Further, rake is arranged on the diapire of unit cells and contacts with three side walls of unit cells;Direction is inclined The opening of inclined portion is uniformly arranged on discharge pipeline.
Further, multiple unit cells are arranged using the overflow manner step by step of lower water inlet upper water-out.
Further, the water outlet side top of each unit cells arranges downflow weir, and leading of extending downwardly is provided with downflow weir Flow tube is so that water outlet to be guided to the bottom of next unit cells.
Further, the water inlet of mozzle is provided with screen net structure.
Further, alkali input port and pH adjusting agent input port are set in each unit cells in aerobic biofilter.
Using the technical solution of the utility model, by arranging first time on the aerobic biofilter of bacteria filter system Flow tube road, for flowing back to the filtrate in aerobic biofilter, being back to aerobic biofilter can further dilute dirt Dye thing concentration, to create suitable nitration reaction environment, improves the utilization ratio of bio-carrier and improves nitration reaction efficiency, enters And improve the nitric efficiency of sewage.
Description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding to of the present utility model, this practicality New schematic description and description is used to explain this utility model, does not constitute to improper restriction of the present utility model. In the accompanying drawings:
Fig. 1 shows the structural representation of the bacteria filter system in a kind of preferred embodiment of the present utility model Figure;And
Each unit pond in the bacteria filter system that Fig. 2 shows in a kind of preferred embodiment of the present utility model Structural representation.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling:
1st, anaerobic biofilter;2nd, biological filter with oxygen;3rd, aerobic biofilter;4th, unit cells;
5th, rake;6th, discharge pipeline;7th, it is open;8th, downflow weir;9th, mozzle.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.Below with reference to the accompanying drawings and in conjunction with the embodiments describing this utility model in detail.
As background section is previously mentioned, bacteria filter system of the prior art is difficult to show Shenhua DCL/Direct coal liquefaction The advantage of the microbe carrier that typical term mesh sewage disposal place adopts gives full play to, and then makes the treatment effect of sewage undesirable. In order to improve above-mentioned condition, high-concentration sewage treatment system long-period stable operation is realized, make microbe carrier play maximum Effect, in a kind of typical embodiment of this utility model, there is provided a kind of bacteria filter system, as shown in figure 1, the biology Filter tank system includes anaerobic biofilter 1, biological filter with oxygen 2 and the aerobic biofilter 3 being sequentially connected, bacteria filter system Also include:First reflux line, the outlet of the entrance of the first reflux line and the first reflux line is both connected to aerobe filter On pond 3.
Above-mentioned bacteria filter system provided by the utility model, by arranging the first return duct on aerobic biofilter Road, for flowing back to the filtrate in aerobic biofilter, being back to aerobic biofilter can further dilute pollutant Concentration, to create suitable nitration reaction environment, improves nitration reaction efficiency, and then improves nitric efficiency.
Preferably, above-mentioned bacteria filter system also includes:Second reflux line, the entrance of the second reflux line is connected to Oxygen biofilter 3, the outlet of the first reflux line is connected on biological filter with oxygen 2.
Preferably, bacteria filter system also includes:3rd reflux line, the entrance of the 3rd reflux line is connected to aerobic life Thing filter tank 3, the outlet of the first reflux line is connected on anaerobic biofilter 1.
Preferably, bacteria filter system also includes:4th reflux line, the entrance of the first reflux line and the first return duct The outlet in road is both connected on anaerobic biofilter 1.
Preferably, the first reflux line, the second reflux line and the 3rd backflow are set simultaneously on above-mentioned aerobic biofilter 3 Pipeline.It is highly preferred that each reflux line is each independently arranged or is set to common sparing pipeline.
The Main Function of the anaerobic biofilter of this utility model biofilter is by anaerobic treatment, to the difficulty in sewage Degradation of organic substances carries out acidification hydrolization and methanation, improves biodegradability, carries out anti-nitration reaction using anaerobic environment and realizes dirt The denitrogenation of water.Biological filter with oxygen is the changeover portion of anaerobic and aerobic, in normal course of operation, can be according to time water quantity and quality Change, adjust per grade of oxygen compatibility pool aeration rate, with adapt to different quality change needs, it is ensured that system optimization process effect Really.Aerobic biofilter is by Aerobic Process for Treatment, the Organic substance degraded in sewage, while using nitration reaction turning the ammonia nitrogen in water Turn to nitrate nitrogen.
In above preferred embodiment, it is biological that aerobic filter tank liquid can simultaneously or respectively deliver to anaerobic biofilter, simultaneous oxygen Filter tank or the entrance of aerobic biofilter, being back in anaerobic biofilter, biological filter with oxygen can play backflow nitrification Liquid, makes sewage that the Main Function of nitration reaction denitrogenation to occur, and being back to aerobic biofilter can further dilute pollutant Concentration, to create suitable nitration reaction environment, improves nitration reaction efficiency, and then improves nitric efficiency.
Preferably, there is some groups of setting in anaerobic biofilter 1, biological filter with oxygen 2 and aerobic biofilter 3 respectively And/or some levels.Some groups of unit cells groups in parallel can be arranged according to the size of the water yield, separate mutual not shadow between each group Ring, can carry out shunting pending sewage when the water yield is larger by multigroup, to improve treatment effeciency.In each group The number of unit cells 4 one or more can be set to according to the situation of water quality, when being set to multiple, multiple unit cells 4 It is connected in series, it is referred to as multistage.
Preferably, as shown in Fig. 2 anaerobic biofilter 1, biological filter with oxygen 2 and aerobic biofilter 3 include series connection The unit cells 4 of setting.
In above preferred embodiment, multigroup and multistage list can be arranged according to the size for processing the water yield per biofilter First pond 4.Such as, eight groups of unit cells groups in parallel are could be arranged to, and has the unit of Pyatyi series operation in every group of unit cells group Pond 4.
Preferably, the grid structure of compound glass steel grating composition is provided with unit cells 4.
In above preferred embodiment, 3~8 layers of rack are set, rack is formed using glass steel grating in each unit cells 4, The specification of glass steel grating is selected according to actual needs, such as can be 38mm × 38mm × 38mm.Compound glass steel lattice The unit cells of the grid structure that plate is constituted are durable, preferable supporting role can be played to microbe carrier, while preventing Carrier is lost in current.
Preferably, the bottom of unit cells 4 is provided with aeration pipeline, can not only provide aeration air to biofilter;But also Can be used to be stirred each unit pond 4 and backwash.The quantity and set-up mode of aeration pipeline is rationally adjusted according to actual needs It is whole.
Preferably, as shown in Fig. 2 the bottom of unit cells 4 is provided with rake 5 and discharge pipeline 6, discharge pipeline 6 is located at rake 5 Side, and with towards the opening 7 of rake 5 with collect rake 5 slide under sludge.
Preferably, rake 5 is arranged on the diapire of unit cells 4 and contacts with three side walls of unit cells 4;Direction is inclined The opening 7 of inclined portion 5 is uniformly arranged on discharge pipeline 6.
In above-described embodiment, unique spoil disposal facility is set in the bottom of pond of unit cells 4, prevents base sludge from blocking.This practicality Each unit cells bottom of pond in new bio filter tank arranges a mud delivery pipeline, and mud delivery pipeline side is uniformly arranged mud discharging mouth, opens Mouth size is 80mm × 40mm.Bottom of pond is, with rake, to be such as set to concrete domatic structure, slope aspect discharge pipeline side, energy It is enough preferably to collect the sludge that filter tank produces, and effectively discharged.
Preferably, multiple unit cells 4 are arranged using the overflow manner step by step of lower water inlet upper water-out.
Preferably, the water outlet side top of each unit cells 4 arranges downflow weir 8, and mozzle 9 is provided with downflow weir 8 to incite somebody to action Water outlet is guided to the bottom of next unit cells 4.
Preferably, the water inlet of mozzle 9 is provided with screen net structure.
In above preferred embodiment, each unit cells Inlet and outlet water adopts the overflow manner arrangement side step by step of lower water inlet upper water-out Formula, it is ensured that uniform fluid flow in filter tank.And each unit cells water outlet side top arranges downflow weir, mozzle is set in downflow weir, will The bottom of next unit cells is sent in water outlet.Add screen net structure, such as stainless steel cloth in every mozzle water inlet simultaneously, with Prevent water conservancy diversion blockage.
Preferably, alkali input port and pH adjusting agent input port are set in each unit cells 4 in aerobic biofilter 3.
In above preferred embodiment, the porch of aerobic biofilter each unit cells arranges pH adjusting agent input port.Than Such as, add sodium carbonate liquor, according in each unit cells pH value adjustment addition number, ensure that each unit cells nitre Change reaction all in appropriate pH value range, make the ratio that nitration reaction is carried out more thoroughly, at the same can be more accurate add Regulating dosage, reduces the consumption of regulator.And arranging plus alkali input port in each unit cells of aerobic biofilter, can be really Protect basicity and inorganic carbon source that nitration reaction needs.
It should be noted that the improvement of unit pool structure is given priority in the various embodiments described above, but these improve equal Can be to be complementary to one another and combine.Such as in a kind of preferred embodiment of this utility model, there is provided a kind of biological filter Pond, the biofilter includes above-mentioned all improved structures for referring to.
The beneficial effects of the utility model are further illustrated below in conjunction with specific embodiment.
The present embodiment treating capacity is 150m3/ h biofilters, the water outlet after Design Treatment reaches circulation cooling water moisturizing Standard.It is divided into for anaerobism (AF1), and oxygen (AF2) and three sections of aerobic (BAF), the total dischargeable capacity of biochemistry pool is 14700m3, water The power time of staying is 98 hours.
Design influent quality is as shown in table 1 below, wherein, the unit of each pollutant is mg/l in table 1 below and 2 (in addition to pH).
Table 1:
pH CODCr NH3-N Oil Sulfide Volatile phenol
7~9 ≤9000 ≤100 ≤20 ≤50 ≤50
Design effluent quality is as shown in table 2 below.
Table 2:
Water quality project Water outlet design load
CODcr ≤100.0
BOD5 ≤10.0
Petroleum-type ≤5.0
Ammonia nitrogen ≤3.0
pH 6.0~9.0
Anaerobic biofilter is divided into eight groups of unit cells groups in parallel, and has the list of Pyatyi series operation in every group of unit cells group First pond, hydraulic detention time is 33.33 hours.The lower water inlet upper water-out of per grade of employing overflow manner water distribution step by step, peace in unit cells Load onto, in, 3 layers of carrier bracket of lower floor, carrier bracket be glass steel grating formed grid structure, specification 38mm × 38mm × 38mm, loads efficient 2 layers of suspension special carrier, and carrier loadings are 2608m3.The water outlet of anaerobism section is entered and oxygen by distribution channel Section.
Biological filter with oxygen is divided into eight groups of unit cells groups in parallel, and has the list of Pyatyi series operation in every group of unit cells group First pond, the arrangement of overflow manner step by step of the lower water inlet upper water-out of per grade of employing.Install in unit cells, in, 3 layers of carrier of lower floor Frame, the grid structure that carrier bracket is formed for glass steel grating, specification 38mm × 38mm × 38mm, the special load of special efficient suspension 2 layers of body, carrier loadings are 2512m3.Bottom arranges aeration tube is used for stirring and backwash, and it is 20 that gas-water ratio is run at ordinary times:1, Bottom arranges discharge pipeline.
Biological filter with oxygen water outlet is flow automatically and enters aerobic biofilter, eight groups of aerobic biofilter unit cells group in parallel, And have the unit cells of Pyatyi series operation in every group of unit cells group, the lower water inlet upper water-out of per grade of employing overflow manner water distribution step by step. Install in unit cells, in, 3 layers of carrier bracket of lower floor, carrier bracket be glass steel grating formed grid structure, specification 38mm × 38mm × 38mm, loads efficient 2 layers of suspension special carrier, and carrier loadings are 2416m3.Bottom is installed by 3T-ADS aerations system Unite for aeration, gas-water ratio is 40:1, bottom arranges discharge pipeline.
Aerobic biofilter water outlet Jing pumps are lifted and are back to the filter of anaerobic biofilter, biological filter with oxygen or aerobe Before pond, water source is flowed back and diluted as Digestive system.
The bottom of pond portion in each pond increases the gradient (i.e. rake), slope aspect discharge pipeline side, slope in water inlet end height 400mm, Bottom of slope is away from discharge pipeline side pool wall 1500mm, the gradient 0.11.Use concrete cast-in-situ.Discharge pipeline is beaten towards on the direction of rake The rectangle mudhole of 8cm × 4cm 5.
As can be seen from the above description, this utility model the above embodiments realize following technique effect:
(1) it is enterprising in technique for the problem that the high-concentration sewage intractability of high COD, high ammonia nitrogen, high bio-toxicity is big Row optimization design so that water quality is good after the system run all right and process;
(2) can preferably realize that novel microbial carrier, in suspension fluidization state, plays novel microbial carrier excellent Gesture is acted on;
(3) small volume in filter tank, sludge quantity is few, and floor space is little, can save capital expenditure and reduce operating cost;
(4) technological process flexible operation, can carry out technique adjustment according to different water quality, realize the degraded of pollutant.
(5) there is very strong degradation capability to high concentration, macromole, hardly degraded organic substance, it is especially (living to natural microorganisms Property sludge) be difficult to solve drop poisonous and harmful, macromolecular compound have good degradation effect;
(6) there is efficient treatment effect to the ammonia nitrogen in sewage.
Preferred embodiment of the present utility model is the foregoing is only, this utility model is not limited to, for this For the technical staff in field, this utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims (13)

1. a kind of bacteria filter system, anaerobic biofilter (1) that the bacteria filter system includes being sequentially connected, and oxygen it is biological Filter tank (2) and aerobic biofilter (3), it is characterised in that the bacteria filter system also includes:First reflux line, it is described The outlet of the entrance of the first reflux line and first reflux line is both connected on the aerobic biofilter (3).
2. bacteria filter system according to claim 1, it is characterised in that the bacteria filter system also includes:Second Reflux line, the entrance of second reflux line is connected on the aerobic biofilter (3), second reflux line Outlet is connected on the biological filter with oxygen (2).
3. bacteria filter system according to claim 1, it is characterised in that the bacteria filter system also includes:3rd Reflux line, the entrance of the 3rd reflux line is connected on the aerobic biofilter (3), the 3rd reflux line Outlet is connected on the anaerobic biofilter (1).
4. bacteria filter system according to claim 1, it is characterised in that the bacteria filter system also includes:4th Reflux line, the entrance of the 4th reflux line and the outlet of the 4th reflux line are both connected to the Anaerobe filter On pond (1).
5. bacteria filter system according to any one of claim 1 to 4, it is characterised in that the anaerobic biofilter (1), biological filter with oxygen (2) and aerobic biofilter (3) include being sequentially connected in series multiple unit cells (4) of setting.
6. bacteria filter system according to claim 5, it is characterised in that is provided with by multilamellar in the unit cells (4) The grid structure that glass steel grating is constituted.
7. bacteria filter system according to claim 6, it is characterised in that unit cells (4) bottom is provided with aeration tube Line.
8. bacteria filter system according to claim 6, it is characterised in that the bottom of the unit cells (4) is provided with inclination Portion (5) and discharge pipeline (6), the discharge pipeline (6) positioned at the side of the rake (5), and with towards the rake (5) Opening (7) with collect the rake (5) landing sludge.
9. bacteria filter system according to claim 8, it is characterised in that the rake (5) is arranged on the unit Contact on the diapire in pond (4) and with three side walls of the unit cells (4);Opening (7) towards the rake (5) is uniform It is arranged on the discharge pipeline (6).
10. bacteria filter system according to claim 6, it is characterised in that multiple unit cells (4) are using lower water inlet The overflow manner step by step of upper water-out is arranged.
11. bacteria filter systems according to claim 10, it is characterised in that the water outlet side of each unit cells (4) Top arranges downflow weir (8), the mozzle (9) for extending downwardly is provided with the downflow weir (8) next so that water outlet to be guided to The bottom of the individual unit cells (4).
12. bacteria filter systems according to claim 11, it is characterised in that the water inlet of the mozzle (9) sets It is equipped with screen net structure.
13. bacteria filter systems according to claim 5, it is characterised in that each in the aerobic biofilter (3) Alkali input port and pH adjusting agent input port are set on the unit cells (4).
CN201621066109.6U 2016-09-20 2016-09-20 Biological filter system Active CN206089196U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108911115A (en) * 2018-08-24 2018-11-30 中国海洋大学 High efficient solid and liquid separation biofilter
CN112225405A (en) * 2020-10-20 2021-01-15 北京生态经济科技有限公司 Micro-nano bubble-zero-valent iron coupling biological method effluent disposal system
CN112225404A (en) * 2020-10-19 2021-01-15 北京生态经济科技有限公司 Micro-nano bubble-zero-valent iron advanced wastewater treatment system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108911115A (en) * 2018-08-24 2018-11-30 中国海洋大学 High efficient solid and liquid separation biofilter
CN112225404A (en) * 2020-10-19 2021-01-15 北京生态经济科技有限公司 Micro-nano bubble-zero-valent iron advanced wastewater treatment system
CN112225405A (en) * 2020-10-20 2021-01-15 北京生态经济科技有限公司 Micro-nano bubble-zero-valent iron coupling biological method effluent disposal system

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