CN104016490A - Multi-corridor scarfed filter wall bio-membrane sewage treatment apparatus and application thereof - Google Patents
Multi-corridor scarfed filter wall bio-membrane sewage treatment apparatus and application thereof Download PDFInfo
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- CN104016490A CN104016490A CN201410283779.2A CN201410283779A CN104016490A CN 104016490 A CN104016490 A CN 104016490A CN 201410283779 A CN201410283779 A CN 201410283779A CN 104016490 A CN104016490 A CN 104016490A
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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
Abstract
The invention discloses a multi-corridor scarfed filter wall bio-membrane sewage treatment apparatus and an application thereof. The treatment apparatus is formed by serially connecting a water receiving system, a primary corridor, a secondary corridor and a tertiary corridor, wherein each of the primary corridor and the tertiary corridor comprises a biological filter wall, the filter walls are full of holes, and the apertures of the holes are gradually increased from top to bottom; a ceramic ring packing is filled in the holes of the two biological filter walls; a biological floating ball packing and a microporous aerator are arranged in each of the three corridors. The treatment apparatus disclosed by the invention has the advantages that microporous aeration is adopted, and baffles are installed, so that water flows slowly in a fold line manner, growth and propagation of nitrobacteria with slow growth are accelerated, and a bio-membrane is formed; the biological filter walls are provided with transition zones of different functional floras, so that different microbes, particularly autotrophic microbes can be prevented from being eliminated in competition. The treatment apparatus disclosed by the invention is provided with the biological filter walls and a micro aeration system in front of a denitrification corridor, so that the microbe aided nitrification and denitrification capability of the bio-membrane can be effectively improved.
Description
Technical field
The invention belongs to sewage treatment area, be specifically related to a kind of many gallery interlocking filter wall microbial film apparatus for treating sewage and uses thereof.
Background technology
At present, gush in river or irrigation canals and ditches directly entering after secondary septic tank is processed for the rural town of China or suburbs town dweller's sanitary sewage, causes COD in water body, ammonia nitrogen to exceed standard, and this is the key factor that causes body eutrophication.
Wawter bloom appearance in Yong He pond, river, alga eruption are relevant with nitrogen phosphorus too much in water body, if in water body can biological utilisation ammonia element (ammonia nitrogen, nitric nitrogen and nitrite nitrogen) be controlled in low-level scope, nitrogen becomes the restraining factors of algal grown, and algae can be effectively controlled on source.
Guangzhou Environmental Protection Agency announces in November, 2,013 50 of Guangzhous (54 sections) river water burst quality supervision measurement information on official website.Result shows, there are 5 river water burst matter to occur degradation, the poorest according to this for Guangzhou announcement in May river water burst prime number, for Huangpu, gush (Hai Zhu), Sha Jiyong (Li Gulf), sand boil (Li Gulf), new city and gush (white clouds), (white clouds) are gushed at Haikou.In addition, You Duotiao river, Guangzhou is gushed ammonia nitrogen and is exceeded standard seriously, and river, white sea, Baiyun District is gushed ammonia nitrogen and exceeded standard and unexpectedly reach 26.8 times, and ammonia nitrogen is up to about 50mg/L.In water body, excess of ammonia nitrogen and nitrite nitrogen are to the particularly growth generation toxic action of fish of hydrobiont.Therefore, trade effluent and sanitary wastewater, before entering receiving water body, must pass through strict denitrogenation processing, reach safe emission standard.
Traditional denitrification process by two of nitrification and denitrifications independently process realize, by nitrifier and denitrifying bacteria in different reactors (on space) respectively, or in same reactor, manufacture the removal that intermittently aerobic and anaerobic environment (on the time) are realized nitrogen.
Traditional denitrification process plays an important role in big-and-middle-sized sewage work, but for small-scale trade effluent and municipal effluent, traditional technology investment cost is high, floor space is large, operational management difficulty is high.
In recent years, along with people's going deep into biological denitrification process understanding, occurred that some new biological denitrificaions are theoretical, such as aerobic denitrification, autotrophic denitrification, heterotrophic nitrification, Simultaneous Nitrification denitrification, short-cut nitrification and denitrification and Anammox etc., also produced thus a series of corresponding technique, such as SND, SHARON, ANAMMOX etc.For utilizing aerobic denitrifying denitrification process because the microbial strains domestication time is long, control condition is left to be desired.
In recent years, domestic application and the patent that has occurred combined biofilm reactor.As Zhang Yongming etc. has invented method and the special biomembrane reactor that utilizes biomembrance process to repair water body, its key part is that a kind of thin-wall macro-aperture road ceramic honeycomb is as biofilm carrier, this carrier is hung on to reactor, by at reactor bottom aeration, formed internal airlift loop bioreactor.The biofilm reactor of the inventions such as Yu Hanqing has the effect of biological contact oxidation pond and biological filter concurrently, under the pushing effect of aerating apparatus, waste water forms circulation between inner core and urceolus, and through biological contact oxidation pond, with filler and biological filter, uses the purifying treatment of filtrate successively.The nitration denitrification integral type sewage denitrification biomembrane reactor of the invention such as Wang Rongchang and for example, this reactor is column structure, is composed in series one from top to bottom by receiving water system, aeration reaction zone, oxygen-starved area and settling region, is full of floating stuffing in aeration reaction zone.
Summary of the invention
Primary and foremost purpose of the present invention is to provide a kind of many gallery interlocking filter wall microbial film apparatus for treating sewage (buried and packaged type), this apparatus for treating sewage adopts many gallerys and the interlocking of filter wall, can meet the requirement of different influent qualities and the residence time, nitrated section of sliceable difference and denitrification section gallery, take up an area few.Utilize liquid level head flow by gravity water outlet in buried microbial film apparatus for treating sewage, the high 15-25cm of the water table ratio of intaking water outlet water level, concrete waterhead need be according to the resistance to flow of staying water and head loss design.On denitride technology, adopted aerobic denitrifying bacteria as the biomembranous dominant microflora in denitrification zone, utilize organism in sewage as carbon source, and by carry out denitrifying Microbial denitrogenation function under aerobic conditions, the removal nitric nitrogen that ammonia nitrogen generates by aerobic nitrification in first step gallery, is different from traditional anaerobic denitrifying technology.This reactor can flexible processing condition, and guarantee under micro-aerobic condition, to carry out denitrogenation, avoided the denitrogenation of employing anaerobic denitrifying bacterium to cause effluent quality poor, or water outlet under aerobic condition, but the anaerobic denitrifying denitrogenation that need reflux, thereby the defect of increase energy consumption.
The application of wall microbial film apparatus for treating sewage in disposing of sewage filtered in the many gallery interlockings that another object of the present invention is to provide above-mentioned.
Object of the present invention is achieved through the following technical solutions:
Many gallery interlocking filter wall microbial film apparatus for treating sewage are to be in series successively by receipts water system, one-level gallery, secondary gallery, three grades of gallerys;
The length ratio of one-level gallery, secondary gallery, three grades of gallerys is (2-3): 1:(4-5); If the ratio of the nitrate nitrogen content in sewage and nitrogen nitrogen content is greater than at 0.5 o'clock, the preferred 2:1:5 of length ratio of one-level gallery, secondary gallery, three grades of gallerys;
Between each gallery, with dividing plate, separate; Dividing plate can be perforate, can be also not perforate; Among each gallery, have baffle plate, the height of plate washer is higher than the dividing plate between gallery, and these plate washers and reactor bottom leave certain interval simultaneously;
Described receipts water system is comprised of water inlet pipe and water inlet equalizing tank, between the biological filter wall of water inlet equalizing tank and one-level gallery, has dividing plate to separate, and has a large amount of perforation so that sanitary sewage can flow out and realize water distribution uniformity from perforation on this dividing plate; Water inlet equalizing tank one end connects water inlet pipe, and opposite side flows to biological filter wall by the perforation of dividing plate;
Described one-level gallery and three grades of gallerys comprise and are positioned at its biological filter wall of gallery front end separately, in two gallerys, the structure of biological filter wall is the same, be on biological filter wall, to be covered with hole, it is large that the aperture of hole becomes from top to bottom gradually, the meaning of design is to reduce local head loss like this, avoids flowing out from dividing plate top because current short circuit causes current; The pore diameter range of hole is 0.5-3cm; In the hole of two biological filter walls, all fill ceramic ring filler;
In one-level gallery and three grades of gallerys, biological filter wall is 1:4 with the length ratio of effective gallery; Described effective gallery refers to, one-level gallery or three grades of parts that gallery is removed biological filter wall;
The preferred 20-50cm of thickness of one-level gallery biological filter wall;
In three gallerys, be all furnished with biological suspension ball filler and micro-hole aerator; The bottom of each gallery is provided with mud valve;
The specific surface area of described biological suspension ball filler is greater than 1000m
2/ m
3; In one-level gallery and secondary gallery, the filling ratio of biological suspension ball filler accounts for the 40-50% of gallery useful volume; In three grades of gallerys, the filling ratio of biological suspension ball filler accounts for the 50-60% of gallery useful volume;
Described biological suspension ball filler is comprised of the urethane biologic packing material and the ceramic ring that vacuumize after processing, is contained in and take in the polyhedron empty ball that polypropylene is material.Urethane biologic packing material percentage of open area is greater than 90%, and specific surface area is 5000m
2/ m
3.Described ceramic ring is the inner right cylinder along axle center perforate, and the aperture of ceramic ring micropore is 5-30 μ m, and specific surface area is about 1500-2000m
2/ g.Ceramic ring has two effects, adjusts the weight of biological suspension ball, makes its proportion in water at 0.98-0.95, the state in suspending; Ceramic ring is to form with Wingdale, flyash waste residue sintering, can in water, work to regulate pH value, and because nitrification consumes ammonia nitrogen, pH value declines, and ceramic ring can maintain ph balancing in water body.
Described micro-hole aerator is connected with the aerating apparatus of reactor bottom, and its effect is the dissolved oxygen content regulating in each gallery;
The inwall of each gallery of reactor of the present invention is provided with bayonet socket, can, by the kind of sewage and microorganism, according to the difference of the required residence time, adjust the quantity of plate washer and the thickness of filter wall.
In reactor of the present invention, one-level gallery and secondary gallery play microorganism nitrification, the mineralized nitrogen in water body, are nitric nitrogen.Because nitrifier is generally aerobic autotrophic bacterium, the microorganism growth generation cycle is longer, so adopt longer hydraulic detention time, two-stage gallery is set.The Main Function of the biological filter wall in one-level gallery is that physics is held back macromolecule contaminant.The effect of the biological filter wall in three grades of gallerys is interception nitrifier, as the symbiosis of nitrifier and denitrifying bacteria, is with longways, plays nitrification and denitrification effect simultaneously, alleviates the denitrifying load of follow-up gallery.
When above-mentioned many gallery interlocking filter wall microbial film apparatus for treating sewage are used for sewage disposal, its placement can adopt packaged type, and (being about to treater puts on the ground, with engineering plastics, do device housings), also can adopt buried (sewage utilizes flow by gravity);
Above-mentioned many gallery interlocking filter wall microbial film apparatus for treating sewage, for sewage disposal, comprise the following steps:
The biofilm stage: the dividing plate between three gallerys is not perforate dividing plate; Three gallery aeration rates (in gas-water ratio) are followed successively by 0.5-0.9,0.4-0.5 and 0.3-0.4; One-level gallery and secondary gallery add nitrifier liquid, and dosage is the 10-20% of this gallery water body cumulative volume; Three grades of gallerys add aerobic denitrifying bacteria liquid, and dosage is the 10-15% of this gallery water body cumulative volume; At all gallerys, add micro-microorganism growth agent, dosage is 1% of place gallery water body cumulative volume; Reactor of the present invention is applicable to sanitary sewage BOD
5the ratio of/CODcr is greater than 0.35, if its C/N of handled sewage is than lower than 3, needs additional carbon (glucose of technical grade and useless sucrose liquid) to C/N ratio to be greater than 3; Add after pending sewage, along with the organic pollutant in sewage is constantly degraded, the continuous growth and breeding of microorganism, microbial film progressively thickens, and through 10-30 days, forms ripe microbial film working properly;
Operation phase: the dividing plate between three gallerys is perforating; Three gallery aeration rates are followed successively by 1-2,1.5-1.8 and 0.8-1, and the hydraulic detention time of three gallerys (h) is respectively: 2-3,1.5-2.5 and 2.3-4, and flow rate control is in 2m/s; Trace element microorganism growth agent dosage is 0.5% of this gallery water body cumulative volume, at initial operating stage, adds one to twice.The mud of this apparatus for treating sewage derives from the microbial film coming off, and when being attached to more than the microbial film of filling surface thickens 3mm, being subject to the stream effect of rinsing of waterpower and peeling off formation mud, clears up mud once bimester of per.
Aerobic denitrifying bacteria of the present invention is after common bacterial classification (acinetobacter Acinetobacter sp., Klebsiella Klebsiella sp. and Rhodopseudomonas Pseudomonas sp.) domestication, to obtain, and acclimation method is asked for an interview with Publication about Document:
Jiang?R,Huang?S?B,Yang?J.Biological?removal?of?NOx?from?simulated?flue?gas?in?an?aerobic?biofilter[J].Global?Nest?Journal,2008,10(2):240-247.
Described micro-microorganism growth agent, its pH value is 7.0; In every liter of micro-microorganism growth agent, contain EDTA50.0g, KI0.2g, ZnSO
42.7g, CaCl
25.5g, MnCl
24H
2o5.06g, FeSO
47H
2o5.0g, (NH
4)
6mo
7o
24H
2o1.1g, CuSO
45H
2o1.57g, CoCl
26H
2o1.57g, surplus is water.
The present invention has following advantage and effect with respect to prior art:
(1) the present invention adopts the aerobic denitrifying bacteria inoculation of general nitrifier and domestication voluntarily, under aerobic environment, by heterotrophic microorganism denitrification pathways metabolism, remove nitrate, nitrate derives from water body or passes through the nitrated meta-bolites of microorganism at leading portion gallery, avoid water outlet may produce stench because dissolved oxygen deficiency causes anaerobic bacterium to grow, reduce treatment process.
(2) the present invention adopts micro-pore aeration, and the installation of plate washer is flowed sluggish flow broken line, is conducive to poky nitrobacteria growth breeding, forms microbial film.
(3) the present invention adopts biological filter wall that the zone of transition of difference in functionality flora is set, and has avoided different types of microorganism, and particularly autotrophic type microorganism is eliminated in competition, effectively improves biomembranous microorganism and works in coordination with nitrated-denitrifying capacity.
(4) the present invention rabbets before biological filter wall and micro-aerating system is set at denitrification gallery (i.e. three grades of gallerys), can effectively improve biomembranous denitrifying capacity.Aeration rate 0.6-0.9 (liquid-gas ratio), the filling ratio of filler brings up to 50%, and periodically add microorganism trace element growth promoter in biofilm stage and operating period, both the suspended state for filler provided enough power, guarantee that again oxygen efficiently transmits, the aerobic anti-nitre bacterium of biomembranous heterotrophism metabolism is simultaneously vigorous, and degraded nitric nitrogen and organic ability increase.
(5) each gallery of reactor of the present invention can carry out rabbet joint type installation according to influent quality and organic concentration etc., thereby is making the residence time in nitrated stage and denitrification stage conveniently adjusted.
(6) during the buried installation of processor adopting of the present invention, the height of the intake-outlet of each gallery is the head resistance design at packing area and ecological filter wall according to hydraulic flow state, can reach water body from flowing to outlet, reduces the energy consumption of water power aspect.
Accompanying drawing explanation
Fig. 1 is the vertical view of many gallery interlocking filter wall microbial film apparatus for treating sewage of the present invention;
Fig. 2 is the sectional view of many gallery interlocking filter wall microbial film apparatus for treating sewage of the present invention;
Wherein, 1-water inlet pipe; The 2-equalizing tank of intaking; 3-biological filter wall; 4-plate washer; 5-one-level gallery; 6-secondary gallery; 7-biological filter wall; Tri-grades of gallerys of 8-; 9-ceramic ring filler; 10-biological suspension ball filler.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1
Many gallerys interlocking filter wall microbial film apparatus for treating sewage, as shown in Figure 1-2, be by receiving water system, one-level gallery 5, secondary gallery 6, three grades of gallerys 8 are in series successively;
The length ratio of one-level gallery 5, secondary gallery 6, three grades of gallerys 8 is 2:1:4;
Between each gallery, with dividing plate, separate; Dividing plate can be perforate, can be also not perforate; Among each gallery, have baffle plate 4, the height of plate washer 4 is higher than the dividing plate between gallery, and these plate washers 4 leave certain interval with reactor bottom simultaneously;
Described receipts water system is comprised of water inlet pipe 1 and water inlet equalizing tank 2, and 3 of the biological filter walls of water inlet equalizing tank 2 and one-level gallery have dividing plate to separate, and has a large amount of perforation so that sanitary sewage can flow out and realize water distribution uniformity from perforation on this dividing plate; Water inlet equalizing tank 2 one end connect water inlet pipe 1, and opposite side flows to biological filter wall 3 by the perforation of dividing plate;
Described one-level gallery 5 and three grades of gallerys 8 comprise and are positioned at its biological filter wall of gallery front end separately, and in two gallerys, the structure of biological filter wall is the same, on biological filter wall, is covered with hole, and it is large that the aperture of hole becomes from top to bottom gradually; The pore diameter range of hole is 0.5-3cm; In the hole of two biological filter walls, all fill ceramic ring filler 9;
In one-level gallery 5 and three grades of gallerys 8, biological filter wall is 1:4 with the length ratio of effective gallery; Described effective gallery refers to, one-level gallery 5 or three grades of parts that gallery 8 is removed biological filter wall;
The thickness of one-level gallery biological filter wall 3 is 20-50cm;
In three gallerys, be all furnished with biological suspension ball filler 10 and micro-hole aerator; The bottom of each gallery is provided with mud valve;
The specific surface area of described biological suspension ball filler 10 is greater than 1000m
2/ m
3; In one-level gallery 5 and secondary gallery 6, the filling ratio of biological suspension ball filler 10 accounts for the 40-50% of gallery useful volume; In three grades of gallerys 8, the filling ratio of biological suspension ball filler 10 accounts for the 50-60% of gallery useful volume;
Described micro-hole aerator is connected with the aerating apparatus of reactor bottom, and its effect is the dissolved oxygen content regulating in each gallery;
The inwall of each gallery of reactor of the present invention is provided with bayonet socket, can, by the kind of sewage and microorganism, according to the difference of the required residence time, adjust the quantity of plate washer 4 and the thickness of biological filter wall.
Embodiment 2
Utilize the treater of embodiment 1 to process domestic sewage in rural areas by using, treatment scale is 50m
3/ day, sanitary sewage source is mainly kitchen and wash water, pending wastewater pollutants CODcr350-450mg/L, BOD
5100-120mg/L, ammonia nitrogen 25-40mg/L, total nitrogen 30-45mg/L, animals and plants oils 25-35mg/L.After sand setting and oil removal pre-treatment, enter the pollutent CODcr300-400mg/L of this treater, BOD
580-100mg/L, ammonia nitrogen 25-35mg/L, nitric nitrogen 5-10mg/L, total nitrogen 30-40mg/L, animals and plants oils 5mg/L.Treatment step is as follows:
(1) equipment preparatory phase: this equipment modes of emplacement adopts buried, it is 3:1:4 that there are slot, the length ratio of three gallerys in rectangular gallery wall side, in one-level gallery and three grades of gallerys, filtering wall is 1:4 with the length ratio of effective gallery.
(2) the biofilm stage: dividing plate between three gallerys is not perforate.Three grades of aeration rates (in gas-water ratio) are followed successively by 0.9,0.5 and 0.4, and firsts and seconds gallery adds nitrifier liquid, and dosage is 20% of the interior water body volume of gallery; Three grades of gallerys add aerobic denitrifying bacteria liquid, and dosage is 10% of this gallery water body cumulative volume, at all gallerys, add micro-microorganism growth agent 1% (growth promoter volume accounts for the volume of staying water in gallery).Add pending sewage.
(3) operation phase: dividing plate between three gallerys changes perforating into.Three grades of aeration rates (in gas-water ratio) are followed successively by 1.5,1.8 and 1, the hydraulic detention time of three gallerys (h) is respectively: 2,1.5 and 3, trace element microorganism growth agent dosage is 1% (growth promoter volume accounts for the volume of staying water in gallery), at initial operating stage, adds twice.The bimester of per, clear up mud once.
Working cost is 0.8-1.2 unit/m
3/ day, after processing, effluent index is as follows: COD=45mg/L, and ammonia nitrogen=5mg/L, total nitrogen=6mg/L, total plate count=5600CFU/mL, COD clearance reaches 85%, and ammonia nitrogen removal frank is 75%, water outlet dissolved oxygen >2mg/L.Visible, treater of the present invention can be processed concentrated discharge, the pretreated domestic sewage in rural areas by using of process oil removal on a small scale.
Embodiment 3
Utilize the treater of embodiment 1 to process campus life sewage, treatment scale is 600m
3/ day.Campus life sewage source is more single, is mainly wash water, pending wastewater pollutants CODcr200-250mg/L, BOD
580-100mg/L, ammonia nitrogen 20-25mg/L, total nitrogen 30-45mg/L, animals and plants oils 8mg/L.After sand setting pre-treatment, enter the pollutent CODcr150-200mg/L of this treater, BOD
570-90mg/L, ammonia nitrogen 18-22mg/L, nitric nitrogen 5-10mg/L, total nitrogen 25-35mg/L, animals and plants oils 4mg/L.Treatment step is as follows:
(1) equipment preparatory phase: this equipment modes of emplacement adopts and installs on ground, with pump handle sewage, pump into water inlet pipe, it is 2:1:5 that there are slot, the length ratio of three gallerys in rectangular gallery wall side, and in one-level and three grades of gallerys, filtering wall is 1:4 with the length ratio of effective gallery.
(2) the biofilm stage: the dividing plate between three gallerys is not perforate.Three grades of aeration rates (in gas-water ratio) are followed successively by 0.9,0.5 and 0.4.One-level gallery and secondary gallery add nitrifier liquid, and dosage is 15% of this gallery water body cumulative volume; Three grades of gallerys add aerobic denitrifying bacteria liquid, and dosage is 10% of this gallery water body cumulative volume, at all gallerys, add micro-microorganism growth agent 1% (growth promoter volume accounts for the volume of staying water in gallery).Add pending sewage.
(3) operation phase: dividing plate between three gallerys changes perforating into.Three grades of aeration rates are followed successively by 1,1.2 and 1.2, the hydraulic detention time of three grades of gallerys (h) is respectively 2,1.5 and 2, trace element microorganism growth agent dosage is 1% (growth promoter volume accounts for the volume of staying water in gallery), at initial operating stage, adds twice.The bimester of per, clear up mud once.
Working cost is 0.4-0.5 unit/m
3/ day, after processing, effluent index is as follows: COD=45mg/L, and ammonia nitrogen=4.5mg/L, total phosphorus=0.5mg/L, total plate count=6000CFU/mL,, COD clearance reaches 85%, and ammonia nitrogen removal frank is 80%, water outlet dissolved oxygen >2mg/L.Visible, treater of the present invention can be processed and concentrate on a small scale sanitary sewage discharge, that pretreated through oil removal, pollution level is lighter.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (10)
1. the interlocking of gallery more than a filter wall microbial film apparatus for treating sewage, is characterized in that: be to be in series successively by receipts water system, one-level gallery, secondary gallery, three grades of gallerys;
Between each gallery, with dividing plate, separate; Dividing plate can be perforate, can be also not perforate; Among each gallery, have baffle plate, the height of plate washer is higher than the dividing plate between gallery, and these plate washers and reactor bottom leave certain interval simultaneously;
Described one-level gallery and three grades of gallerys comprise and are positioned at its biological filter wall of gallery front end separately, and in two gallerys, the structure of biological filter wall is the same, on biological filter wall, is covered with hole, and it is large that the aperture of hole becomes from top to bottom gradually; In the hole of two biological filter walls, all fill ceramic ring filler;
In three gallerys, be all furnished with biological suspension ball filler and micro-hole aerator.
2. many gallery interlocking filter wall microbial film apparatus for treating sewage according to claim 1, is characterized in that: the length ratio of described one-level gallery, secondary gallery, three grades of gallerys is (2-3): 1:(4-5).
3. wall microbial film apparatus for treating sewage is filtered in many gallery interlockings according to claim 1, it is characterized in that: described receipts water system is comprised of water inlet pipe and water inlet equalizing tank, between the biological filter wall of water inlet equalizing tank and one-level gallery, there is dividing plate to separate, on this dividing plate, have a large amount of perforation; Water inlet equalizing tank one end connects water inlet pipe, and opposite side flows to biological filter wall by the perforation of dividing plate.
4. many gallery interlocking filter wall microbial film apparatus for treating sewage according to claim 1, is characterized in that: on described biological filter wall, the pore diameter range of hole is 0.5-3cm.
5. many gallery interlocking filter wall microbial film apparatus for treating sewage according to claim 1, is characterized in that: in one-level gallery and three grades of gallerys, biological filter wall is 1:4 with the length ratio of effective gallery; Described effective gallery refers to, one-level gallery or three grades of parts that gallery is removed biological filter wall.
6. many gallery interlocking filter wall microbial film apparatus for treating sewage according to claim 1, is characterized in that: in one-level gallery and secondary gallery, the filling ratio of biological suspension ball filler accounts for the 40-50% of gallery useful volume; In three grades of gallerys, the filling ratio of biological suspension ball filler accounts for the 50-60% of gallery useful volume.
7. the application of the many gallery interlocking filter wall microbial film apparatus for treating sewage described in claim 1-6 any one in sewage disposal.
8. the application of many gallery interlocking filter wall microbial film apparatus for treating sewage according to claim 7 in sewage disposal, is characterized in that: this treater can adopt packaged type to place in use, also can adopt buried placement.
9. the application of many gallery interlocking filter wall microbial film apparatus for treating sewage according to claim 7 in sewage disposal, is characterized in that: this treater comprises the following steps in use:
The biofilm stage: the dividing plate between three gallerys is not perforate dividing plate; Three gallery aeration rates (in gas-water ratio) are followed successively by 0.5-0.9,0.4-0.5 and 0.3-0.4; One-level gallery and secondary gallery add nitrifier liquid, and dosage is the 10-20% of this gallery water body cumulative volume; Three grades of gallerys add aerobic denitrifying bacteria liquid, and dosage is the 10-15% of this gallery water body cumulative volume; At all gallerys, add micro-microorganism growth agent, dosage is 1% of this gallery water body cumulative volume; If its C/N ratio of handled sewage is lower than 3, additional carbon to C/N ratio is greater than 3; Add after pending sewage, through 10-30 days, form microbial film;
Operation phase: the dividing plate between three gallerys is perforating; Three gallery aeration rates are followed successively by 1-2,1.5-1.8 and 0.8-1, and the hydraulic detention time of three gallerys (h) is respectively: 2-3,1.5-2.5 and 2.3-4, and flow rate control is in 2m/s; Trace element microorganism growth agent dosage is 1% of this gallery water body cumulative volume, at initial operating stage, adds one to twice.
10. the application of many gallery interlocking filter wall microbial film apparatus for treating sewage according to claim 9 in sewage disposal, is characterized in that: described micro-microorganism growth agent, and its pH value is 7.0; In every liter of micro-microorganism growth agent, contain EDTA50.0g, KI0.2g, ZnSO
42.7g, CaCl
25.5g, MnCl
24H
2o5.06g, FeSO
47H
2o5.0g, (NH
4)
6mo
7o
24H
2o1.1g, CuSO
45H
2o1.57g, CoCl
26H
2o1.57g, surplus is water.
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| CN201410283779.2A CN104016490B (en) | 2014-06-23 | 2014-06-23 | The application of many gallery interlocking filter wall microbial film apparatus for treating sewage in sewage disposal |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN106430631B (en) * | 2016-12-07 | 2023-09-26 | 南京领先环保技术股份有限公司 | Clear water filtering wall |
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| CN111499090A (en) * | 2020-03-31 | 2020-08-07 | 安徽国祯环保节能科技股份有限公司 | Rural household sewage treatment device and treatment method thereof |
| CN113307446A (en) * | 2021-05-21 | 2021-08-27 | 珠江水利委员会珠江水利科学研究院 | Bendable and telescopic water treatment system |
| CN113307446B (en) * | 2021-05-21 | 2021-12-24 | 珠江水利委员会珠江水利科学研究院 | Bendable and telescopic water treatment system |
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