CN206751598U - A kind of bacteria filter device - Google Patents
A kind of bacteria filter device Download PDFInfo
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- CN206751598U CN206751598U CN201720033885.4U CN201720033885U CN206751598U CN 206751598 U CN206751598 U CN 206751598U CN 201720033885 U CN201720033885 U CN 201720033885U CN 206751598 U CN206751598 U CN 206751598U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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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Abstract
The utility model is related to a kind of bacteria filter device, described device biochemical treatment unit, enter film pretreatment unit and super-pressure membrane method unit, the biochemical treatment unit is connected with entering film pretreatment unit, it is described enter film pretreatment unit be connected with super-pressure membrane method unit;The biochemical treatment unit comprises at least sewage collecting box, regulating reservoir, BAF BAF, backwashing pump, Aeration fan and water producing tank.The different pollutant of the utility model can be removed gradually in same reactor, it is synchronous to play biological oxidation, biological adsorption flocculation and Physical entrapment effect, effluent quality is good, reuse requirement can be met, without second pond, technological process is simplified, using Modular Structure Design, makes operational management more convenient.
Description
Technical field
It the utility model is related to water treatment field, more particularly to a kind of bacteria filter device.
Background technology
High slat-containing wastewater refers to the waste water of total saliferous mass fraction >=1%, typically belongs to used water difficult to degradate.It is particularly industrial dense
Salt solution, it contains the inorganic salinity of high concentration and substantial amounts of refractory organic or noxious material, if such waste water is not
Natural water body is directly discharged into through processing, aqueous bio, Drinking Water and industrial and agricultural production water will necessarily be produced great
Harm, huge pressure will be caused to ecological environment.Processing method be broadly divided into biological treatment and physical chemistry
Method.Relatively common at present has distillation desalination process, absorption method, embrane method, counter-infiltration, bioanalysis etc..
Biological treatment is one of the most frequently used method of current wastewater treatment, it have have a wide range of application, strong adaptability etc.
Feature.But the inorganic salts in high saline sewage have stronger inhibitory action, the organic matter root of high saline sewage to general microorganism
Different according to production process, the species and chemical property of contained organic matter differ greatly, but contained salts substances are mostly Cl-、SO4 2-、
Na+、Ca2+Deng salts substances.Although these ions are all nutrients necessary to microorganism growth.But if these ions are dense
Height is spent, suppression and toxic action can be produced to microorganism.Therefore, the biological treatment of high saline sewage is generally in low salt concn
Run under (salinity < 1%).It is becoming tight however as the day of water resource, the water conservation items regulation and receipts that country puts into effect
The implementation taken, the enterprise to the processing of high saline sewage brings burden, when salt content is more than 2g/L in sewage, using bioanalysis
It is larger to carry out high-salt sewage intractability.
Physical-chemical process includes distillation desalination process, adsorption technology, film desalination process etc..Distillation desalination process be it is a kind of it is most ancient,
The most frequently used desalination process, the way of distillation is exactly that brackish water heating is allowed to explosive evaporation, then steam is condensed into the process of fresh water.
The advantages of way of distillation is simple in construction, operation is easy, gained fresh water water quality is good etc..The way of distillation has a many kinds, and application is relatively broad
Have:Multiple-effect evaporation (MED), low temperature multiple-effect distillation (LT-MED), multistage flash evaporation (MSF) etc..Adsorption technology is to utilize adsorbent
Physics chemical action between pollutant be combined with each other, by pollutant removing from water.According to the difference of adsorption mechanism, can divide
Adsorbed for physical absorption, chemisorbed and ion exchange, it is often the case that three kinds of mechanism occur simultaneously.Film desalination process is to utilize to ooze
Saturating pressure difference realizes the technology of desalination as motive force.Film desalination process mainly has counter-infiltration (RO), disc tube reverse osmosis (dt-ro) (DTRO), film
Distill (MD), positive infiltration (FO), electrodialysis (ED) etc..Film desalination process has that small investment, energy consumption are low, while can also reach depth
Desalination purpose, production water can be used as recycle-water.Simple in construction, operation easily, gained fresh water water quality it is good etc., but capital cost be present
With the shortcomings of high, floor space is big, power consumption is high.
Utility model content
For the deficiency of prior art, the utility model provides a kind of bacteria filter device, and described device includes biochemistry
Processing unit, entering film pretreatment unit and super-pressure membrane method unit, the biochemical treatment unit is connected with entering film pretreatment unit,
It is described enter film pretreatment unit be connected with super-pressure membrane method unit;The biochemical treatment unit comprises at least sewage collecting box, adjusted
Section pond, BAF BAF, backwashing pump, Aeration fan and water producing tank, the sewage collecting box pass through intake pump and regulating reservoir
It is connected, the regulating reservoir is connected with BAF BAF, and the BAF BAF is connected with water producing tank;It is described enter film
Pretreatment unit comprises at least:Dosing unit, highly dense pond, pH value adjustment unit, sand filtration unit, air blower, active carbon filter,
Resin container and water inlet adjustment monitoring unit;The water producing tank is connected with the highly dense pond, and the dosing unit is connected with highly dense pond,
The highly dense pond is connected with active carbon filter, and pH value adjustment unit is connected with active carbon filter;The active carbon filter
It is connected with resin container, the resin container is connected with sand filtration unit, and the sand filtration unit is connected with water inlet adjustment monitoring unit.
Water inlet adjustment monitoring unit is connected with middle pressure RO units according to a preferred embodiment, and the water inlet is adjusted
Whole monitoring unit is connected with active carbon filter, and the water inlet adjustment monitoring unit is connected with resin container, the water inlet adjustment prison
Unit is surveyed with sand filtration unit to be connected.
Water inlet adjustment monitoring unit includes hygrosensor according to a preferred embodiment, chlorion detects
Device, heavy metal ion detector, fine particle detector, distributed A/D acquisition modules, thermostat, the first draining valve,
Two draining valves, the 3rd draining valve, the 4th draining valve, distributed digital input/output module, monolithic device and PC terminals;
The hygrosensor for being used to gather water temperature information is connected with distributed A/D acquisition modules, described to be used to gather
The chlorion detector of chlorine ion concentration information is connected with distributed A/D acquisition modules, described dense for gathering heavy metal ion
The heavy metal ion detector of degree information is connected with distributed A/D acquisition modules, described miscellaneous for gathering fine particle in liquid
The fine particle detector of matter concentration information is connected with distributed A/D acquisition modules;
The thermostat is connected with distributed digital input/output module, first draining valve and distributed digital
Input/output module is connected, and second draining valve is connected with distributed digital input/output module, the 3rd draining valve with
Distributed digital input/output module is connected, and the 4th draining valve is connected with distributed digital input/output module.
Distributed A/D acquisition modules are connected with single-chip microcomputer according to a preferred embodiment, the distributed number
Word input and output module is connected with single-chip microcomputer, and the single-chip microcomputer is connected with PC terminals.
It is connected according to Aeration fan and backwashing pump described in a preferred embodiment with BAF BAF.
Also be connected according to highly dense pond described in a preferred embodiment with buffering/concentration basin, buffering/concentration basin with it is described
Regulating reservoir is connected;
It is cube shaped frame according to regulating reservoir described in a preferred embodiment, its length and width a height of 6000 × 1200 ×
1800mm, wall thickness 10mm.
It is vertical cylindrical tank according to BAF BAF described in a preferred embodiment, its internal diameter and a height of
1416×5510mm。
It is vertical type cylinder shape water tower shape according to sewage collecting box described in a preferred embodiment, its internal diameter and a height of
1320×1410mm。
According to a preferred embodiment, the water producing tank is vertical type cylinder shape water tower shape, its internal diameter and a height of 1320
×1410mm。
The different pollutant of the utility model can be removed gradually in same reactor, and the synchronous biological oxidation that plays is made
Acted on the flocculation of, biological adsorption and Physical entrapment, effluent quality is good, can meet reuse requirement, without second pond, simplifies technique
Flow, using Modular Structure Design, make operational management more convenient.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model bacteria filter device;
Fig. 2 is the schematic flow sheet for the preferred process mode that the utility model enters film pretreatment unit;
Fig. 3 is the structural representation of the utility model water inlet adjustment monitoring unit;
Fig. 4 is clearances of the BAF to COD, SS, ammonia nitrogen in raw water;
Fig. 5 is the change of the highly dense pond disengaging water hardness and hardness extrusion rate;
Fig. 6 is middle pressure feed water by reverse osmosis, production water, the situation of change of concentrated water electrical conductivity;
Fig. 7 is high pressure feed water by reverse osmosis, production water, the situation of change of concentrated water electrical conductivity;
Fig. 8 is super-pressure feed water by reverse osmosis, production water, the situation of change of concentrated water electrical conductivity;
Fig. 9 is the situation of change of super-pressure reverse osmosis concentrated water TDS rates;
Figure 10 is removal effect of the reverse osmosis units to COD.
Embodiment
It is described in detail below in conjunction with the accompanying drawings.As described in Figure 1, a kind of bacteria filter device for water process.It is described
Device include being provided with the biochemical treatment unit of BAF, be provided with highly dense pond and sand filtration enter film pretreatment unit and
It is provided with the super-pressure membrane method unit of middle pressure RO units, high pressure RO units and super-pressure RO units;Wherein biochemical treatment unit with
Enter film pretreatment unit to be connected, it is described enter film pretreatment unit be connected with super-pressure membrane method unit.
The biochemical treatment unit includes:Sewage collecting box, regulating reservoir, biochemical treatment tank BAF, Aeration fan, backwashing pump,
Water producing tank.It is described enter film pretreatment unit comprise at least:Water producing tank, dosing unit, highly dense pond, pH value adjustment unit, sand filtration list
Member and air blower.
Sewage collecting box is connected with regulating reservoir in the water treatment facilities, and regulating reservoir is connected with biochemical treatment tank BAF, biochemical
Processing pond BAF is connected with water producing tank;Aeration fan and backwashing pump are connected with biochemical treatment tank BAF;Water producing tank is connected with highly dense pond,
Dosing unit is connected with highly dense pond, and highly dense pond is connected with sand filtration unit, and pH value adjustment unit is connected with sand filtration unit;Highly dense pond is also
It is connected with buffering/concentration basin, buffering/concentration basin is connected with regulating reservoir;Sand filtration unit and middle pressure in the super-pressure membrane method unit
RO units are connected, and middle pressure RO units are connected with high pressure RO units, and high pressure RO units are connected with super-pressure RO units, superelevation RO units
It is connected with evaporative crystallization unit;Purging system is connected with medium pressure RO units, and medium pressure RO units, high pressure RO units are with surpassing
High pressure RO units are also connected with reuse water unit.
According to a preferred embodiment, with reference to shown in Fig. 1 and Fig. 2, it is described enter film pretreatment unit can also include
Active carbon filter, resin container, water inlet adjustment monitoring unit.The highly dense pond is connected with active carbon filter.The activated carbon
Filter is connected with resin container.The resin container is connected with sand filtration unit.The sand filtration unit adjusts monitoring unit phase with water inlet
Even.The water inlet adjustment monitoring unit is connected through the first draining valve with middle pressure RO units.The water inlet adjustment monitoring unit is through the
Two draining valves are connected with active carbon filter.The water inlet adjustment monitoring unit is connected through the 3rd draining valve with resin container.It is described
Water inlet adjustment monitoring unit is connected through the 4th draining valve with sand filtration unit.
As shown in figure 3, the water inlet adjustment monitoring unit includes hygrosensor, chlorion detector, heavy metal ion
Detector, fine particle detector, distributed A/D acquisition modules, thermostat, the first draining valve, the second draining valve, the 3rd
Draining valve, the 4th draining valve, distributed digital input/output module, monolithic device and PC terminals.
The hygrosensor is connected with distributed A/D acquisition modules, for gathering water temperature information.The chlorion detection
Device is connected with distributed A/D acquisition modules, for gathering chlorine ion concentration information.The heavy metal ion detector and distribution
A/D acquisition modules are connected, for gathering concentration of heavy metal ion information.The fine particle detector gathers with distributed A/D
Module is connected, for gathering fine particle impurity concentration information in liquid
The thermostat is connected with distributed digital input/output module, first draining valve and distributed digital
Input/output module is connected, and second draining valve is connected with distributed digital input/output module, the 3rd draining valve with
Distributed digital input/output module is connected and the 4th draining valve is connected with distributed digital input/output module.The distribution
Digital input and output modules are connected with single-chip microcomputer, and the single-chip microcomputer is connected with PC terminals.
Water inlet adjustment monitoring unit is by distributed A/D acquisition modules by hygrosensor, chlorion detector, heavy metal
It is whole to be based on PC to the single-chip microcomputer by the single-chip microcomputer for the information transfer that ion detector and fine particle detector detect
The inflow requirement of the middle pressure RO units of input is held to carry out data processing to the monitoring information.
Data processed result is fed back to the thermostat by single-chip microcomputer through distributed digital input/output module, and is led to
Cross thermostat control waste water solution temperature.Single-chip microcomputer feeds back data processed result through distributed digital input/output module
Control whether that waste water solution is drained into active carbon filter is carried out again to the second draining valve, and by controlling the second draining valve
Secondary dechlorination process.Data processed result is fed back to the 3rd draining valve by single-chip microcomputer through distributed digital input/output module, and is led to
The 3rd draining valve of control is crossed so as to control whether that waste water solution is discharged into resin container carries out removing metal ion treatment again.Single-chip microcomputer
Data processed result is fed back into the 4th draining valve through distributed digital input/output module, and by control the 4th draining valve from
And control whether that waste water solution is flowed into sand filtration unit carries out the processing of removal of impurities again.Until what water inlet adjustment monitoring unit monitored
Waste water reaches the water inlet index of middle pressure RO units, and single-chip microcomputer feeds back data processed result through distributed digital input/output module
To the first draining valve, and by controlling the first draining valve to control waste water solution to press RO units to carry out depth concentration in flowing into.
The regulating reservoir is cubic structure, and its specification is 6000 × 1200 × 1800mm, wall thickness 10mm.The dosing list
The medicine reserve tank of member is vertical square tube, and the square tube specification is 300 × 380 × 550mm.The alkalescence of the pH value adjustment unit
Solution reserve tank is vertical square tube, and the square tube specification is 300 × 380 × 550mm.The highly dense pond is cube shaped frame, its
Specification is 5800 × 1200 × 1800mm, wall thickness 10mm.The sand filtration unit is vertical type cylinder shape structure, its a diameter of 380mm,
Height 380mm, wall thickness 10mm.The BAF BAF is vertical cylindrical tank, and its specification is 1416 × 5510mm of Φ.
The sewage collecting box is vertical type cylinder shape water tower shape, and its specification is 1320 × 1410mm of Φ.The water producing tank is vertical type cylinder
Shape water tower shape, its specification are 1320 × 1410mm of Φ.
Embodiment 1
Water treatment facilities is divided into three units according to major function:Biochemical treatment unit, enter film pretreatment unit, super-pressure
Membrane method unit.
Biochemical treatment unit uses BAF (BAF), and SS, COD, BOD, nitrification, de- is removed by biomembrance process
Nitrogen, dephosphorization, remove AOX etc..Pretreatment section uses high efficiency clarification tank+sand filtration, and hardness, COD, glue are reduced by physical-chemical reaction
Body and turbidity etc., ensure the efficiency and operation stability of follow-up reverse osmosis advanced processing unit.Super-pressure membrane method unit can be stablized
Salt content in water is removed, handles high-salt wastewater, super concentration is done for zero-emission, evaporation capacity is reduced and does technological reserve.
After passing through anaerobic biochemical treatment due to the MTO waste water of certain embodiment, higher anaerobe, ammonia are contained in water
Nitrogen, COD, SS etc..To ensure the stable operation of reverse-osmosis treated unit influent quality and equipment, using BAF pair
MTO waste water carries out biochemical treatment, and its mechanism is to be organically combined biological contact oxidation process and feedwater rapid filter, and biology is dropped
Solution merge with two kinds of processing procedures of adsorption filtration in same unitary reactor, with loaded in filter tank particulate filler (such as haydite,
Coke, quartz sand, activated carbon etc.) it is carrier, it is aerated inside filter tank, filter material surface is grown a large amount of biomembranes.Work as dirt
When water flows through, using the oxygenolysis of the active microorganism of appended biomembrane middle and high concentration on filtrate, micro- life is given full play to
The biological metabolism of thing, bioflocculation, physical absorption and retention and the reactor interior edge water (flow) direction food of biomembrane and filler
The classification predation of chain, complete the efficient removal of pollutant.
BAF is used as filler using cobblestone and slag haydite.Though BAF is biological film process
One kind of method, but compared with traditional biological filter tank, still with evident characteristic:(1) the little particle filler of the rough porous used
As bio-carrier, higher biomass (up to 10~15g/L) can be kept on filler surface, is easy to biofilm and stable;
(2) biofacies is complicated, and Bacterial community is reasonable, has obvious spatial gradient feature in reactor, be resistant to it is higher it is organic with
Hydraulic blow load, different pollutants can be removed gradually in same reactor, synchronous to play biological oxidation, biology
Adsorption-flocculation and Physical entrapment effect, effluent quality is good, can meet reuse requirement;(3) general biofilter and biology are different from
Filter tower, it need to be aerated when removing BOD, ammonia nitrogen, but particulate filler layer has higher oxygen transfer efficiency, and aeration quantity is low, fortune
Row energy consumption is relatively low, nitrification and denitrification efficiency high;(4) filter tank is semiclosed or totally-enclosed structures, and its biochemical reaction is by the external world
Temperature influence is smaller, is suitable for cold district and carries out sewage disposal;(5) microbial biomass of high concentration increases the volume in filter tank and born
Lotus, and then pool volume and floor space are reduced, substantially reduce capital cost;(6) backwash is passed through in the running of filter tank
The pollutant retained in filtering layer and the biomembrane to come off are removed, without second pond, technological process is simplified, using modular construction
Design, make operational management more convenient;(7) sewage plant peculiar smell, no sludge bulking problem, without sludge reflux are reduced.
After passing through BAF biochemical treatment, the ion of easy fouling is also contained in water, partly can not biology
The organic matter of degraded, the dirt for easily causing membranous system are blocked up, and to ensure the stable operation of follow-up reverse osmosis units, pretreatment uses carbon
Sour sodium and sodium hydroxide softening, PAC coagulations, PAM help solidifying high dense settling pond and sand filtration.Softening process returns in high saline sewage
It is widely used in, operating cost is low, can flexibly control chemical feeding quantity according to influent quality;Except removing partial organic substances and micro-
Biology, further reduce outside suspension, most important effect is can to reduce the basicity and temporary hardness in sewage, is ensured follow-up
With the safety and economy of water.Setting sand filtration filter element, the fine particle further gone in water removal, suspends after coagulation clarification processing
The impurity such as thing, colloid.
High dense settling pond is clarified three units combinations by coagulation, flocculation and precipitation and formed.Its technological core is
Sludge reflux and tube settling application, cohesion core is provided by sludge reflux, adds reaction zone concentration of suspension, reinforcement
Flocculating effect has reclaimed part medicament simultaneously.
High dense settling pond has the function that to remove dirty Organic substance in water, colloid, suspension.High dense settling pond entrance is
Coagulant dosage unit, being sufficiently stirred by mixer makes coagulant fully contact carry out coagulating with sewage, is formed a large amount of
Flocculation group.Sewage by the bottom water outlet of coagulation section enter sedimentation basin flocculation unit, flocculation unit by add flocculant with
And mix slowly so that above-mentioned a large amount of flocculation groups form big and closely knit alumen ustum.Sewage by section of flocculating is clarified into high density
Pond precipitation clarification unit, enough sloping plate deposition areas are provided with this element, by sloping plate deposition allow current with
The flow velocity of mitigation flows through sloping plate deposition, and the clear water of top overflow is collected by collecting tank flows into next treatment facility, bottom precipitation
The alumen ustum to get off is deposited in along swash plate slide downward and precipitates clarification unit bottom, the sludge part in bucket is by sludge reflux
Pump squeezes into front end coagulation section backflow, and to give full play to the effect of medicament, excess sludge squeezes into mud pit by sludge lifting pump, enters
Enter Treatment of Sludge flow processing.
The characteristics of high dense settling pond:(1) outside sludge circulation system is provided with to lift to anti-sludge from sludge condensation area
Pond water inlet pipe is answered, is mixed with raw water;(2) cohesion-flocculation is carried out in two reaction zones, passes through the hybrid reaction of stirring first
Area, subsequently enter pulling flow type reaction zone;(3) using synthesis organic flocculant PAM;(4) from low speed reaction zone to tube settling district
Alumen ustum can keep complete, and caused alumen ustum matter is equal, density is high;(5) efficient tube settling, the settling zone rate of climb are used
Up to 20~40m/h, efficient alumen ustum is precipitated well herein;(6) sludge condensation can be effectively completed, effluent quality is steady
It is fixed, anti impulsion load.
During filtering layer of the settling zone water outlet Jing Guo sand filtration, the impurity such as suspension in water, colloid can be effectively removed, work as filtering layer
When the impurity of middle retention is excessive, filtering layer mesopore is blocked, and the resistance increase of current, the rate of filtration diminishes, and filtering velocity is crossed to recover former
Degree, sand filtration water outlet and compressed air can be used to carry out regular backwash, the impurity accumulated in filtrate hole is rinsed out, recover filtering
Ability.Conventional filtering layer filler is quartz sand, retains the precision of suspension more than 5~10 μm, delivery turbidity is in below 3NTU.
Super reverse osmosis concentration technology of the super concentration high pressure membrane technology using extraordinary diaphragm and extraordinary membrane structure as core,
GTR series membranes are wider than standard pollution-resistant membrane runner, and stifled more resistant to dirt, diaphragm is more firm, it is ensured that under high pollution, high concentration ratio
Stable operation, reduce cleaning frequency, extend the high-performance of film;It is divided into middle pressure GTR3 series, high pressure GTR4 series and import
DTRO series, TDS concentration can be segmented and realized, middle pressure GTR3 films to more than 15000mg/L, high pressure GTR4 films to 45000mg/
More than L, be advantageous to balance membrane efficiency and reduce energy consumption.One of core of the technology is extraordinary diaphragm, can be held compared with conventional film
By higher operating pressure, the suspension, colloid and COD of higher concentration are resistant to, is substantially improved to the severe of influent quality index
Carve and require;In membrane structure, broader runner is employed, accessible turbulent flow is formed, slow down the fouling of film significantly, it is ensured that be long
Periodic duty.
Super concentration technique refers to from conventional pretreatment facility (such as softening, filtering), dense using special antipollution
Contracting reverse osmosis membrane (middle pressure, high pressure, super-pressure reverse osmosis membrane), by optimizing the rate of recovery and operating condition of membranous system, with special
Mode realize the concentration minimizing of strong brine (concentrate TDS can generally achieve 5%~10%), playing membranous system
While superiority, the investment and operating cost of " zero-emission " integrated artistic are reduced.The great advantage of the technology is to utilize special type
Membrane structure (wide runner, material are special) makes brackish water realize that high power concentrates under not undergoing phase transition;By using open
Wide runner design, it supports water conservancy diversion panel surface particular design, makes divided fluid stream uniform, and forms more preferably turbulence effects, maximum journey
Film surface scale, pollution and the generation of concentration polarization phenomenon are reduced on degree, makes that there is stronger antifouling property, to the pre- place of waste water
Reason requires relatively low.The technology has realized breakthrough in high slat-containing wastewater processing, sewage " zero-emission " etc. at present,
Possesses industrialized condition.
The large-scale embodiment system that embodiment testing equipment is made up of 2 40 forty equivalent unit 40s, it is respectively at biochemistry
Unit is managed, enters film pretreatment unit and super-pressure membrane method unit, device can analyze turbidity, electrical conductivity, TDS, pH, SDI in itself
Etc. index, embodiment device is equips complete and advanced system, equipped with complete on-line monitoring instrument and robot control system(RCS), together
When rational sample tap is scheduled.Each container is allocated as follows:Container one is BAF biochemistry unit;Container two
Film pretreatment+super-pressure membrane method unit is entered in position.
Biological aerated filter process (BAF) unit design water inlet scale is 1m3/ h, filler volume are 5m3, total measurement (volume) is
6.23m3, 1416 × 5510mm of Φ, filler is cobblestone and slag haydite, and volumetric loading is 0.3kg COD/m3D, if
There is 2m3Inlet water tank and each one of water tank, capital equipment and specification or performance parameter such as following table 2-1.
Table 2-1 BAF unit essential equipment (UEE) tables
This item purpose enters film pretreatment+super-pressure membrane method unit, and in container two, pre-processing device design scale is
5m3/ h, embodiment processing water is 2.1m3/h.Superelevation pressed film method system concentrates reverse osmosis membrane using special antipollution,
And middle pressure, high pressure, super-pressure and auxiliary medicine system, by optimizing the rate of recovery and operating condition of membranous system, with special side
Formula come realize the concentration minimizing of strong brine (concentrate TDS can generally achieve 5%~8%, play membranous system superiority
While, reduce " zero-emission " integrated artistic investment and operating cost.Aquifer yield 1.8m is pressed in design3/ h, high pressure aquifer yield
0.8m3/ h, super-pressure aquifer yield 0.1m3/ h, capital equipment and specification or performance parameter such as following table 2-2.
Main Analysis project of the present embodiment be pH, electrical conductivity, CODcr, ammonia nitrogen, SS, total hardness, total alkalinity,
The contents such as chlorion, electrical conductivity, turbidity etc., specific analytical method and test limit see the table below 3-1.
Table 3-1 embodiment analysis method tables
BAF processing ran without interruption for 24 hours, superelevation film pressing system intermittent duty, the micro- life of ozone water outlet
Thing limited amount, so embodiment BAF Starting mode uses inocalation method, inocalation method refers in other biological treatment systems
Sludge is added to the startup method cultivated in reactor as strain.Certain embodiment MTO anaerobic pond mixed liquors 5m3(SV
For 30%, activated sludge concentration:4000mg/L or so), it is pumped into BAF reactors, carries out vexed exposure, hereafter every 24 hours, enters
Ozone water outlet about 1m3Afterwards, vexed exposure is continued, Inlet and outlet water water quality to such as shown in table 3-2 during stable operation.
Table 3-2BAF Inlet and outlet waters water quality contrasts
BAF more can be clearly reacted by Figure of description 4 to COD, SS, NH_3-N treating effect.
Potassium permanganate composites medicine system is made up of five parts:Flocculant PAC dosings part, flocculation aid PAM dosings part,
Na2C03 dosings part, NaOH dosings part, HCl dosings part.Wherein PAC, PAM, Na2C03, NaOH, the concentration of HCl solution
Respectively 5%, 0.2%, 2%, 2%, 35%.Pilot plant test is carried out according to water water analysis first, determines optimal addition dosage.
Small-scale experiment is done to highly dense pond dosing, test data is shown in Table 3-3.
Table 3-3 pilot plant test chemical feeding quantities correspond to hardness relation
According to the accounting of pilot run and dosing cost, PAC, PAM, Na are selected2CO3, NaOH chemical feeding quantity be respectively
30ppm、1.2ppm、20ppm、15ppm.Average hardness extrusion rate is 91.89%, and service data collects as shown in table 3-4:
Table 3-4 is highly dense, and Inlet and outlet water hardness data in pond collects
The change of the water hardness and hardness extrusion rate is passed in and out referring to 5 highly dense pond of Figure of description.
Super-pressure membrane method unit normal operation, because middle pressure counter-infiltration offer concentrated water amount is limited, therefore, high pressure and super-pressure
Counter-infiltration operates to periodic running.Carrying out practically data are shown in Table 3-5.
Table 3-5 super-pressure membrane method unit treating capacities
The middle pressure counter-infiltration rate of recovery is 80%, and film intake pressure is 2.0MPa, and average salt rejection rate can be calculated by upper table data
For 96.3%.The average salt rejection rate of high pressure counter-infiltration is 97.43%, is in 4.2MPa, the rate of recovery entering film pressure control
63.63%.When super-pressure reverse osmosis concentrated water pressure 10MPa, the rate of recovery 50%, average salt rejection rate is 92.03%.
Pretreatment, middle pressure, high pressure, super-pressure integrated artistic, raw water confluent are 2.4m3/ h, pre-process efficient sedimentation tank
Can continuously it be run with 24h with middle pressure counter-infiltration, other counter-infiltrations can not continuously be run, and high pressure counter-infiltration is run 11h/ days;Superelevation
Counter-infiltration is pressed to run 7h/ days, recycled in its entirety rate 95.45%, shown in detailed data table 3-7.
Table 3-7 middle high-pressures and the super-pressure counter-infiltration rate of recovery and salt rejection rate
Referring to 6,7,8,9 four curve map response situations of Figure of description, middle pressure counter-infiltration is run under stable case, is pressed
Power control is in 2.0MPa, in order to prevent the dirt of diaphragm from blocking up, in every 2h low-pressure washings 3min or so.High pressure counter-infiltration is in stable case
Lower operation, pressure is in 4.2MPa, because high pressure feed water by reverse osmosis salt content is high, therefore operating pressure rise it is very fast, 50min~
60min low-pressure washings 3min or so, each flushing water come from reverse osmosis produced water.The super-pressure concentrated water it can be seen from Figure of description 9
TDS average values are 72100ppm, and concentrated water directly can subsequently enter crystallization and evaporation system.
The technique is investigated from COD, raw water COD is 105mg/L in average value, and the middle average COD of pressure reverse osmosis produced water is
6.1mg/L, clearance 94.2%;The average COD of high pressure reverse osmosis produced water is 16.16mg/L, clearance 95.8%;Super-pressure
Reverse osmosis produced water COD average values are 75mg/L, clearance 95.5%.Specific data are as shown in table 3-8:
Pressure production water, high pressure production water, super-pressure production water COD situation tables in 3-8
Reverse osmosis units are to COD removal effect referring to Figure of description 10.Pass through the existing embodiment analysis of experiments table
It is bright:
(1) BAF unit:From the point of view of obtained data, BAF is put down to COD, SS, ammonia nitrogen
Equal extrusion rate is respectively 62.45%, 55.88%, 64.78%, further increases the biodegradability of waste water, while high to enter
Mi Chi subsequent treatment reduces cost.
(2) highly dense pond+sand filtration unit:High efficiency clarification tank device, sodium carbonate/sodium hydroxide softening, drop are effectively played
The functions such as soft, suspension colloid and turbidity, it is determined that it is suitable add dose in the case of (sodium carbonate 20mg/L, hydrogen-oxygen
Change sodium 15mg/L, PAC 30mg/L, PAM 1.2mg/L, hydrochloric acid 20mg/L), total hardness clearance 91.89%, ensure follow-up anti-
The stable operation of penetration equipment.
(3) super-pressure reverse osmosis units:High dense settling pond, sand filtration, counter-infiltration normal operation, middle pressure, high pressure and super
Each salt rejection rate of high pressure counter-infiltration is respectively:96.3%, 97.43% and 92.03%, average salt rejection rate 95.25% is corresponding each anti-
The permeation unit rate of recovery is respectively:75%, 63.63% and 50%, flow recycled in its entirety rate 95.45%.
From data above conclusion as can be seen that each unit can complete stability operation, effectively can eliminate in water
Most of soluble salt point, suspension, colloid, hardness, basicity, COD, organic matter and microorganism etc..Original water hardness is low, hard-off
It is by a relatively simple, production water can directly replenishment cycles sewer or boiler chemical water station processing unit, after depth softens, benefit
Fill boiler feedwater.The crystallizable evaporation of concentrated water.
From data above conclusion as can be seen that each unit can complete stability operation, effectively can eliminate in water
Most of soluble salt point, suspension, colloid, hardness, basicity, COD, organic matter and microorganism etc..Original water hardness is low, hard-off
It is by a relatively simple, production water can directly replenishment cycles sewer or boiler chemical water station processing unit, after depth softens, benefit
Fill boiler feedwater.The crystallizable evaporation of concentrated water.
It should be noted that above-mentioned specific embodiment is exemplary, those skilled in the art can be in the utility model
Various solutions are found out under the inspiration of disclosure, and these solutions also belong to open scope of the present utility model simultaneously
Fall within the scope of protection of the utility model.It will be understood by those skilled in the art that the utility model specification and its accompanying drawing
Be it is illustrative and not form limitations on claims.The scope of protection of the utility model is by claim and its equivalent
Limit.
Claims (9)
1. a kind of bacteria filter device, described device includes biochemical treatment unit, enters film pretreatment unit and superelevation pressed film method list
Member, it is characterised in that the biochemical treatment unit is connected with entering film pretreatment unit, it is described enter film pretreatment unit and super-pressure
Membrane method unit is connected;
The biochemical treatment unit comprises at least sewage collecting box, regulating reservoir, BAF BAF, backwashing pump, Aeration fan
And water producing tank, the sewage collecting box are connected by intake pump with regulating reservoir, the regulating reservoir and BAF BAF phases
Even, the BAF BAF is connected with water producing tank;
It is described enter film pretreatment unit comprise at least:Dosing unit, highly dense pond, pH value adjustment unit, sand filtration unit, air blower,
Active carbon filter, resin container and water inlet adjustment monitoring unit;
The water producing tank is connected with the highly dense pond, and the dosing unit is connected with highly dense pond, the highly dense pond and activated carbon mistake
Filter is connected, and pH value adjustment unit is connected with active carbon filter;
The active carbon filter is connected with resin container, and the resin container is connected with sand filtration unit, the sand filtration unit and water inlet
Adjustment monitoring unit is connected;
Wherein, the water inlet adjustment monitoring unit is connected with middle pressure RO units, the water inlet adjustment monitoring unit and the activity
Carbon filter is connected, it is described water inlet adjustment monitoring unit be connected with the resin container, it is described water inlet adjust monitoring unit with it is described
Sand filtration unit is connected.
2. bacteria filter device as claimed in claim 1, it is characterised in that the water inlet adjustment monitoring unit is visited including temperature
Survey device, chlorion detector, heavy metal ion detector, fine particle detector, distributed A/D acquisition modules, lower water temperature
Device, the first draining valve, the second draining valve, the 3rd draining valve, the 4th draining valve, distributed digital input/output module, monolithic device
With PC terminals;
Hygrosensor for gathering water temperature information is connected with distributed A/D acquisition modules, for gathering chlorine ion concentration letter
The chlorion detector of breath is connected with distributed A/D acquisition modules, for gather the heavy metal of concentration of heavy metal ion information from
Sub- detector is connected with distributed A/D acquisition modules, for gathering the fine particle of fine particle impurity concentration information in liquid
Detector is connected with distributed A/D acquisition modules;
The thermostat is connected with distributed digital input/output module, and first draining valve inputs with distributed digital
Output module is connected, and second draining valve is connected with distributed digital input/output module, the 3rd draining valve and distribution
Formula digital input and output modules are connected, and the 4th draining valve is connected with distributed digital input/output module.
3. bacteria filter device as claimed in claim 2, it is characterised in that the distributed A/D acquisition modules and single-chip microcomputer
It is connected, the distributed digital input/output module is connected with single-chip microcomputer, and the single-chip microcomputer is connected with PC terminals.
4. bacteria filter device as claimed in claim 1, it is characterised in that the Aeration fan and backwashing pump and aeration and biological
Filter tank BAF is connected.
5. bacteria filter device as claimed in claim 1, it is characterised in that the highly dense pond is also connected with buffering/concentration basin,
Buffering/the concentration basin is connected with the regulating reservoir.
6. bacteria filter device as claimed in claim 1, it is characterised in that the regulating reservoir is cube shaped frame, its length and width
A height of 6000 × 1200 × 1800mm, wall thickness 10mm.
7. bacteria filter device as claimed in claim 1, it is characterised in that the BAF BAF is vertical type cylinder
Shape cylinder, its internal diameter and a height of 1416 × 5510mm.
8. bacteria filter device as claimed in claim 1, it is characterised in that the sewage collecting box is vertical type cylinder shape water tower
Shape, its internal diameter and a height of 1320 × 1410mm.
9. bacteria filter device as claimed in claim 1, it is characterised in that the water producing tank is vertical type cylinder shape water tower shape,
Its internal diameter and a height of 1320 × 1410mm.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110627199A (en) * | 2018-06-25 | 2019-12-31 | 光大水务科技发展(南京)有限公司 | Method for intelligently controlling backwashing strength of biological aerated filter |
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2017
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110627199A (en) * | 2018-06-25 | 2019-12-31 | 光大水务科技发展(南京)有限公司 | Method for intelligently controlling backwashing strength of biological aerated filter |
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