CN104193005B - A kind of small-sized fluidized bed Sewage treatment systems and operation method thereof - Google Patents
A kind of small-sized fluidized bed Sewage treatment systems and operation method thereof Download PDFInfo
- Publication number
- CN104193005B CN104193005B CN201410446942.2A CN201410446942A CN104193005B CN 104193005 B CN104193005 B CN 104193005B CN 201410446942 A CN201410446942 A CN 201410446942A CN 104193005 B CN104193005 B CN 104193005B
- Authority
- CN
- China
- Prior art keywords
- bed
- fluidized
- fluidized bed
- aerobic
- hypoxic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a kind of small-sized fluidized bed Sewage treatment systems and operation method thereof, the application's structure is simple, compact, floor space is little, Technological adaptability is strong, the application is utilized to dispose of sewage, running cost is low, mud generation is few, applied range, can simultaneously processing soluble and waste water containing particle and system run all right, realizing growing by regulating the air feed ratio of aerobic fluidized-bed bottom and top aerating apparatus has the internal recycle of the Solid Bed material of active biological film or does not circulate, and is particularly suitable for small-sized sewage treatment area.
Description
Technical field:
The present invention relates to sewage treatment area, be specifically related to a kind of small-sized fluidized bed Sewage treatment systems and operation method thereof.
Background technology:
" the comprehensive programme of work of " 12 " energy-saving and emission-reduction " (No. (2011) 26, promulgated by the State Council) advances urban wastewater treatment facility and supporting pipeline network construction, promotes existing utility, intensified denitrification and dephosphorization.By 2015, substantially all counties are realized and emphasis organic town possesses sewage treatment capacity, the newly-increased sewage daily handling ability forty-two million ton in the whole nation, newly-built supporting pipe network about 160,000 kilometers, treatment rate of domestic sewage reaches 85%, formed chemical oxygen demand (COD) and ammonia nitrogen cut down ability 2,800,000 tons, 300,000 tons.Continue propulsion energy-saving and reduce discharging scientific and technological actions, general character, key and the cutting edge technologies such as organizationally efficient energy-conservation, changing waste into resources and small-sized decentralized wastewater process, Control of Agricultural Non-point Source Pollution are tackled key problems.
Due to the microorganism that can cause a disease, other toxic compounds that can promote the nutritive substance of aquatic plants growth and may cause a disease may be contained in waste water; in order to protect the health of the mankind, waste water is in re-using or have to pass through suitable process before directly entering environment.Wastewater treatment generally includes coagulation (physical treatment), second-stage treatment (biochemical treatment) and tertiary treatment (advanced treatment).Owing to all containing biodegradable composition in nearly all waste water, therefore, the biological degradation method various nutritive ingredients (BNR) removed in waste water are adopted just to become the waste water treatment process process extensively adopted, it not only can remove the organic pollutant in waste water, but also the nitrogen can effectively removed in waste water and phosphorus.
The investigation and application that biological fluidized bed is disposed of sewage starts from the Environmental Protection Agency of 20 century 70s.Japan carries out a large amount of biological fluidized bed research work at the beginning of the eighties, representative Shi Li field company and Mitsubishi.
The domestic research to biological fluidized bed is started late, Lanzhou Petrochemical Company research institute in 1978 environmental protection start the research work of pure oxygen aeration biological fluidized bed process petrochemical wastewater.Domestic main research be air aeration fluidized-bed, studying based on the fluidized-bed process of double air-bed of the city domestic sewage that 1980 Chengdu political affairs designing institutees, Beijing environmental protection institute, Harbin Institute of Technology, Wuhan Df "Vodokanalingenering" etc. carry out, within 1984, Fushun oil institute adopts jet-flow aeration three-phase bed Refinery Wastewater.Main research lays particular emphasis on search operation mode, carrier characteristics, oxygen charging method, microbial film control and upgrades, and recommends design variable on this basis.
Application number is the method and apparatus that patent document discloses a kind of city domestic sewage process of 03128090.0, it is that hotel, restaurant sanitary sewage are first carried out oil removal after slag pre-treatment, enter three-phase biological fluidized bed reactor again, allow sewage stay for some time in the reactor and carry out biochemical oxidation reaction, this reactor comprises reaction zone, carrier is separated and stripping region, liquid-solid separating region, reaction zone comprises urceolus, conduit, waste water, air-distributor are dammed in inner draft tube, control; Carrier separating and stripping region comprises expansion conduit and flow apron; Liquid-solid separating region comprises flow deflector and water outlet distributor.Control the centre of catheter cartridge at Inner guide wound packages and urceolus of damming, bio-carrier is all equipped with in reaction zone, reactor lower part is equipped with air-distributor, influent waste water sparger is equipped with in inner draft tube bottom, and be connected with header tank or water pump, sewage after treatment can meet or exceed the sewage discharge primary standard that GB8978-1996 specifies.Application number is the patent documentation of 200580005561.X, immobilized biological membrane fluidization and biological nutrients are removed technique whole and liquid-solid circulating fluidized bed to one in, reach the object simultaneously removing carbon nitrogen phosphorus.Liquid-solid circulating fluidized bed biological nutrients is removed system and is contained two fluidized-beds, respectively with hypoxic/anaerobic and aerobic process operation, by the continuous solid-liquid recirculation between hypoxic/anaerobic bed and aerobic bed, complete synchronous nitration/denitrification and remove carbon substrate, nutrition and phosphorus.Application number is that 200810158214.6 patent documentations provide a kind of multifunctional biological film fluidized bed and operational mode, this is multifunctional biological film fluidized bed comprises a body, water inlet pipe is provided with successively from bottom to top in bed body, perforation water distribution board, screen cloth and membrane module, it is characterized in that: bed body top is provided with the rising pipe passed in membrane module, the part of boring a hole between water distribution board to membrane module in bed body is divided into two-layer up and down by screen cloth, two-layerly interiorly all be filled with filler up and down, the upper and lower are equipped with aeration tube, the aeration tube of the upper and lower is all connected with air intake valve and under meter.This is multifunctional biological film fluidized bed realizes facultative-aerobic, anaerobism, anaerobic-aerobic and the operational mode such as aerobic.Application number be 201110330215 patent documentation provide a kind of integrated high-efficiency energy saving sewage disposal device.Its technical scheme is: it comprises the columned reactor body of integrally closed, inner core one and the inner core two of two suits is also provided with in described reactor body, described reactor body is also set with urceolus outward, the upper and lower opening opening completely of described inner core one and inner core two, haydite is filled with in cavity between described urceolus and reactor body, more than the top liquid level of described reactor body be communicated with tracheae, the other end of described tracheae inserts bottom haydite.Application number is a kind of Sewage treatment systems and the method that 201210131085 patents provide anaerobic fluidized bed-micro-aerobic membrane bioreactor, it relates to Sewage treatment systems and method, and this invention will solve prior art---the problem that aerobic activated sludge process occupied ground area is large and energy consumption is high.This system is formed by anaerobic fluidized bed and micro-aerobic membrane bioreactor series combination, and sewage first by anaerobic fluidized bed acidifying and the anaerobically fermenting of being hydrolyzed, then enters micro-oxygen bio-reactor, finally utilizes suction pump that water outlet is entered clean water basin.Application number is the minimizing technology that patent document discloses a kind of high rigidity ammonia nitrogen in waste water based on MBBR of 201310676295, belongs to sewage treatment area.For the ammonia nitrogen of high hardness water, by adopting MBBR technique to process, being intended to solve biochemical process in the past and being difficult to the problems such as unstable, the easy fouling of startup, poor removal effect and treatment effect.This invention technical scheme comprises inoculation startup, high rigidity starts, high rigidity Continuous Flow is run, and final ammonia nitrogen face load is greater than 0.83gN/m
2/ d, water outlet ammonia nitrogen stablizes≤5mg/L, meets the requirement of municipal wastewater treatment plant pollutant emission standard to ammonia nitrogen.
Above-mentioned patent does not all relate to and utilizes gas-liquid-solid three-phase fluidized bed to carry out small-sized dispersed sewage disposal.
Summary of the invention:
The object of this invention is to provide the small-sized fluidized bed Sewage treatment systems extremely operation method that a kind of cost is low, Technological adaptability is strong.
The present invention is achieved by the following technical programs:
A kind of small-sized fluidized bed Sewage treatment systems, comprises aerobic fluidized bed, hypoxic/anaerobic fluidized-bed, bed material granules regeneration bed and the sludge settling bed that concentrate on and be communicated with successively in a reactor; Solid Bed material is filled with in described aerobic fluidized bed and hypoxic/anaerobic fluidized-bed, on described Solid Bed material, growth has active biological film, described aerobic fluidized bed in be also provided with aerating apparatus, be describedly aerobic fluidized bedly provided with bed material particles circulating mouth with the middle and upper part of the sides adjacent of hypoxic/anaerobic fluidized-bed, top be provided with aerobic fluidized bed outlet; On Solid Bed material emulsion zone in described aerobic fluidized bed and hypoxic/anaerobic fluidized-bed, interface is a little less than bed material particles circulating mouth; Described aerobic fluidized bed outlet is also communicated with the top of bed material granules regeneration bed; Described hypoxic/anaerobic fluidized-bed bottom is provided with water-in, and the middle and lower part of described hypoxic/anaerobic fluidized-bed and bed material granules regeneration bed sides adjacent is provided with bed material returning charge mouth; The middle part of described bed material granules regeneration bed and sludge settling bed sides adjacent is provided with bed material granules regeneration bed and exports; Be provided with sludge outlet bottom described sludge settling bed, top is provided with sewage outlet; The water outlet that the water-in that described aerobic fluidized bed bottom is provided with is provided with top via backflow water pipe is communicated with, the liquid circulation that aerobic fluidized bed top water outlet flows out is to the water-in of aerobic fluidized-bed bottom, realize the fluidisation of bed material in bed, the water outlet at aerobic fluidized bed top is also communicated with the water-in of hypoxic/anaerobic fluidized-bed bottom through backflow water pipe, realizes aerobic fluidized bed interior partially liq and is circulated in hypoxic/anaerobic fluidized-bed; The water outlet at described hypoxic/anaerobic fluidized-bed top and the water-in of bottom are by backflow cross current, and the bed material in hypoxic/anaerobic fluidized-bed is by the self-circulation liquid in the raw waste water that entered bed by the water-in of bottom, bed and the fluidisation realizing bed material in bed on a small quantity from the circulating liquid in aerobic fluidized bed.
Described aerating apparatus is stratified and set on aerobic fluidized bed bottom and top in pairs.The aerating apparatus of aerobic fluidized bed bottom is arranged near aerobic fluidized bed bottom as far as possible, is conducive to the particle of aeration bubbles to aerobic fluidized bed bottom and plays good stirring and carry effect secretly during aeration.The aerating apparatus on described aerobic fluidized bed top is a little more than interface on aerobic fluidized bed interior bed material emulsion zone.Under guarantee aeration bubbles does not affect the prerequisite of bed material particle in emulsion zone substantially, increasing the aeration degree of depth of aerating apparatus as far as possible, system air feed energy consumption can be reduced when ensureing system air demand.
Described aerating apparatus sewage treatment project can be adopted to commonly use aerating apparatus that M215 disk aeration head or micropore aeration pipe or other can reach equivalent effect.
Described bed material returning charge mouth is provided with L returning charge valve and utilizes waterpower returning charge, or the returning charge or both combinations of spiral material-returning device machinery.
Described bed material granules regeneration bed outlet is provided with inertial separator or filter screen.
When not needing particles circulating, described aerobic fluidized bed outlet is also provided with a material separating device, and described bed material separating device is tube settler bed material or filter screen.
Chemical dephosphorization medicament is added with, with enhanced system phosphor-removing effect in described bed material granules regeneration bed.
The application also provides the operation method of above-mentioned small-sized fluidized bed Sewage treatment systems, it is characterized in that, raw waste water is introduced into hypoxic/anaerobic fluidized-bed to be carried out denitrification, denitrogenation, releases phosphorus, then flow through aerobic fluidized bed, bed material granules regeneration bed, sludge settling bed successively and carry out suction phosphorus, nitrated, solid-liquid separation respectively, obtain the sewage handled well and mud finally discharges fluidisation bed waste water treatment system; Realize growing in aerobic fluidized bed and hypoxic/anaerobic fluidized-bed by regulating the air feed ratio of aerobic fluidized-bed bottom and top aerating apparatus having the internal recycle of the Solid Bed material of active biological film or do not circulate.
Under Solid Bed material circular flow operating mode, aerobic fluidized bed interior bed material is regulated to be carried the aerobic fluidized bed quantity of outflow by bubble by increasing aerobic fluidized bed bottom aerating apparatus air feed ratio, enter bed material granules regeneration bed from the aerobic fluidized bed bed material of aerobic fluidized bed outlet outflow and enter hypoxic/anaerobic fluidized-bed from bed material returning charge mouth after Solid-Liquid Separation, adding due to new particle in hypoxic/anaerobic fluidized-bed, bed height raises, partial particulate flows into aerobic fluidized bed through bed material particles circulating mouth, thus achieve the internal recycle that the load of fluidized-bed Sewage treatment systems has active bio membrane granule.
Bed material granules regeneration bed enters hypoxic/anaerobic fluidized-bed from bed material returning charge mouth after Solid-Liquid Separation, adopts direct sedimentation returning charge or utilizes the mechanical returning charges such as waterpower returning charge or spiral material-returning device such as L returning charge valve, or adopting the combination of aforesaid method.
Under not circular flow operating mode expected by bed, by reduce aerobic fluidized bed bottom aerating apparatus air feed ratio make aerobic fluidized bed interior bed material substantially not by bubble carry flow out aerobic fluidized bed.Thus the fluidized bed material of small-sized fluidized bed Sewage treatment systems is not circulated substantially.
Under not circular flow operating mode expected by bed, aerobic fluidized bed exit can arrange tube settler filler or filter screen, to strengthen being separated of bed material and liquid phase, the effect substantially do not circulated with the fluidized bed material of enhanced compact fluidized-bed Sewage treatment systems.
The aerobic fluidized bed fluidisation being realized bed material in bed by the liquid self circulation in bed, aerobic fluidized bed interior partially liq need be circulated in hypoxic/anaerobic fluidized-bed simultaneously.Hypoxic/anaerobic fluidized-bed is by the self-circulation of liquid in the former water of sewage that enters bed, bed and the fluidisation realizing bed material in bed on a small quantity from the circulating liquid in aerobic fluidized bed.
Can regular replenishment new bed material particle in bed material granules regeneration bed, by by active sludge and bed material particle (comprise newly add bed material particle and may exist expect particle from circulate original of coming of aerobic bed) vexed quick-fried, make particle to be formed active immobilized biomembrane.With the bed material particle that replenishment system runs off, ensure bed material total amount in fluidized-bed Sewage treatment systems, make hypoxic/anaerobic fluidized-bed and aerobic fluidized bed interior close phase section highly substantially keep constant.
According to biological phosphor-removing effect under the circulation of bed material or not circular flow operating mode, in described bed material granules regeneration bed, chemical dephosphorization medicament can be added with enhanced system phosphor-removing effect.
Compared with prior art, the present invention has following beneficial effect:
(1) the application's structure is simple, compact, floor space reduces greatly, Technological adaptability is strong, achieving anaerobic reaction, aerobic reaction and hypoxia response is integrated in same reactor, combine the advantage of suspension growth BNR process and fixing film reaction unit, mud can settleability good and require the corresponding reduction for the treatment of pond size.
(2) utilize the application to dispose of sewage, cost is low: first, greatly reduces the demand of oxygen, and required energy consumption also just decreases a lot; Secondly, as the solid particulate of microbial bacterial membrane carrier in working cycle, biomembranous coming off can as the carbon source needed for denitration reaction, and therefore system also can reduce the demand of carbon source; Again, this fluidised bed system has the function of dephosphorization, and the consumption of chemical method dephosphorization reagent reduces greatly.
(3) the application's applied range, because solid particulate is in suspended state all the time in fluidized-bed, can simultaneously processing soluble and waste water containing particle.And due to biomembranous well maintained performance, the stability of process operation is also significantly improved.In addition, due to the sludge yield that hypoxia response district internal ratio oxygen process is lower, the generation of chemical sludge can reduce to minimum.The application has the biological auto-degradation than the longer sludge age of fixed biologically membrane process and Geng Gao, and the generation of biological sludge is also effectively controlled.
In a word, the application's structure is simple, compact, floor space is little, and Technological adaptability is strong, utilizes the application to dispose of sewage, running cost is low, mud generation is few, applied range, can simultaneously processing soluble and waste water containing particle and system run all right, realizing growing by regulating the air feed ratio of aerobic fluidized-bed bottom and top aerating apparatus has the internal recycle of the Solid Bed material of active biological film or does not circulate, and is particularly suitable for small-sized sewage treatment area.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the application;
Fig. 2 is the application's system flowchart under bed material particles circulating operation condition;
Fig. 3 is the application's system flowchart under bed material particle not circular flow operating mode;
Wherein, 1, aerobic fluidized bed; 2, hypoxic/anaerobic fluidized-bed; 3, bed material granules regeneration bed; 4, sludge settling bed; 5, aerating apparatus; 6, bed material particles circulating mouth; 7, aerobic fluidized bed outlet; 8, bed material returning charge mouth; 9, bed material granules regeneration bed outlet; 10, sewage outlet; 11, sludge outlet; 12, bed material separating device.
Embodiment:
Below further illustrate of the present invention, instead of limitation of the present invention.
Embodiment 1:
As shown in Fig. 1 or 3, a kind of small-sized fluidized bed Sewage treatment systems, comprises aerobic fluidized bed 1, hypoxic/anaerobic fluidized-bed 2, bed material granules regeneration bed 3 and the sludge settling bed 4 that concentrate on and be communicated with successively in a reactor; Described aerobic fluidized bed 1 and hypoxic/anaerobic fluidized-bed 2 in be filled with Solid Bed material, on described Solid Bed material, growth has active biological film, also be provided with aerating apparatus 5 in described aerobic fluidized bed 1, described aerobic fluidized bed 1 be provided with bed material particles circulating mouth 6 with the middle and upper part of the sides adjacent of hypoxic/anaerobic fluidized-bed 2, top is provided with aerobic fluidized bed outlet 7; Described aerobic fluidized bed 1 and hypoxic/anaerobic fluidized-bed 2 in Solid Bed material emulsion zone on interface a little less than bed material particles circulating mouth 6; Described aerobic fluidized bed 1 is also communicated with the top of bed material granules regeneration bed 3 through aerobic fluidized bed outlet 7; Described hypoxic/anaerobic fluidized-bed bottom is provided with water-in, and described hypoxic/anaerobic fluidized-bed 2 is provided with bed material returning charge mouth 8 with the middle and lower part of bed material granules regeneration bed 3 sides adjacent; Described bed material granules regeneration bed 3 is provided with bed material granules regeneration bed with the middle part of sludge settling bed 4 sides adjacent and exports 9; Be provided with sludge outlet 11 bottom described sludge settling bed 4, top is provided with sewage outlet 10; As shown in Figure 3, the water outlet that the water-in be provided with bottom described aerobic fluidized bed 1 is provided with top via backflow water pipe is communicated with, water-in bottom the liquid circulation that the water outlet at aerobic fluidized bed 1 top flows out to aerobic fluidized bed 1, thus the fluidisation of bed material in realization bed, the water outlet at aerobic fluidized bed 1 top is also communicated with the water-in bottom hypoxic/anaerobic fluidized-bed 2 through backflow water pipe, and the partially liq realized in aerobic fluidized bed 1 is circulated in hypoxic/anaerobic fluidized-bed 2; The water outlet at described hypoxic/anaerobic fluidized-bed 2 top and the water-in of bottom are by backflow cross current, and the bed material in hypoxic/anaerobic fluidized-bed 2 is by the self-circulation liquid in the raw waste water that entered bed by the water-in of bottom, bed and the fluidisation realizing bed material in bed on a small quantity from the circulating liquid in aerobic fluidized bed.
Described aerating apparatus 5 in pairs point two-layer be arranged on aerobic fluidized bed 1 bottom and top, the aerating apparatus 5 of the bottom of aerobic fluidized bed 1 is arranged as far as possible bottom aerobic fluidized bed 1, is conducive to the particle of aeration bubbles to the bottom of aerobic fluidized bed 1 and plays good stirring and carry effect secretly during aeration.The aerating apparatus 5 on the top of aerobic fluidized bed 1 should a little more than interface on aerobic fluidized bed interior bed material emulsion zone, under guarantee aeration bubbles does not affect the prerequisite of bed material particle in emulsion zone substantially, increasing the aeration degree of depth of aerating apparatus as far as possible, system air feed energy consumption can be reduced when ensureing system air demand.
Described aerating apparatus 5 adopts sewage treatment project to commonly use M215 disk aeration head.
Described bed material returning charge mouth 8 is provided with L returning charge valve and utilizes waterpower returning charge.
The bed material separating devices 12 such as tube settler bed material or filter screen can be provided with as shown in Figure 3, to strengthen being separated of bed material and liquid phase, the effect substantially do not circulated with the fluidized bed material of enhanced compact fluidized-bed Sewage treatment systems at aerobic fluidized bed outlet 7 place.
Chemical dephosphorization medicament is added with, with enhanced system phosphor-removing effect in described bed material granules regeneration bed 3.
The operation method of above-mentioned small-sized fluidized bed Sewage treatment systems, the water-in that raw waste water is provided with bottom hypoxic/anaerobic fluidized-bed 2 is introduced into hypoxic/anaerobic fluidized-bed 2 and carries out denitrification, denitrogenation, release phosphorus, then flow through aerobic fluidized bed 1 through bed material particles circulating mouth 6 and carry out suction phosphorus, nitrated, complete C in sewage, N, removing of the nutritive substances such as P, the sewage processed flows through bed material granules regeneration bed 3 to what may exist from aerobic fluidized bed outlet 7 and carries out precipitate and separate from aerobic fluidized bed 1 come the original material particle that circulate, finally enter sludge settling bed 4 from bed material granules regeneration bed outlet 9 and carry out solid-liquid separation, obtain the sewage handled well and mud, then finally fluidisation bed waste water treatment system is discharged through sewage outlet 10 and sludge outlet 11 respectively, as shown in Figure 3, described aerobic fluidized bed 1 and hypoxic/anaerobic fluidized-bed 2 in Solid Bed material emulsion zone on interface a little less than bed material particles circulating mouth 6, by reducing aerating apparatus 5 air feed ratio bottom aerobic fluidized bed 1 (arranging by 10%:90% with the aerating apparatus 5 air feed ratio on top bottom aerobic fluidized bed 1), Solid Bed material in aerobic fluidized bed 1 not being carried by bubble substantially and flows out aerobic fluidized bed 1 thus the fluidized bed material of small-sized fluidized bed Sewage treatment systems is not circulated substantially.
Can regular replenishment new bed material particle at bed material granules regeneration bed 3, by by vexed quick-fried to active sludge and bed material particle (comprise newly add bed material particle and original that comes from aerobic fluidized bed circulation of may exist expects particle), make particle to be formed active immobilized biomembrane, with the bed material particle that replenishment system runs off, ensure bed material total amount in fluidized-bed Sewage treatment systems, make hypoxic/anaerobic fluidized-bed and aerobic fluidized bed interior close phase section highly substantially keep constant.
Utilize the present embodiment device and operation method thereof to dispose of sewage, experimental result sees the following form:
As seen from the above table, the clearance of total nitrogen reaches 85%, and the average removal rate of total COD reaches 84%, and the clearance of ammonia nitrogen reaches 88%.
Embodiment 2:
A kind of small-sized fluidized bed Sewage treatment systems, reference example 1, difference is: aerating apparatus 5 aerobic fluidized bed 1 bottom and top divide three layers of setting in pairs, and aerating apparatus 5 is commonly used except M215 disk aeration head except adopting sewage treatment project, can also adopt micropore aeration pipe or other can reach the aerating apparatus of equivalent effect; Described bed material returning charge mouth 8 is provided with L returning charge valve, adopts direct sedimentation returning charge; Described bed material granules regeneration bed outlet 9 is provided with filter screen.
The operation method of above-mentioned small-sized fluidized bed Sewage treatment systems, the water-in that raw waste water is provided with bottom hypoxic/anaerobic fluidized-bed 2 is introduced into hypoxic/anaerobic fluidized-bed 2 and carries out denitrification, denitrogenation, release phosphorus, then flow through aerobic fluidized bed 1 through bed material particles circulating mouth 6 and carry out suction phosphorus, nitrated, complete C in sewage, N, removing of the nutritive substances such as P, the sewage processed flows through bed material granules regeneration bed 3 to what may exist from aerobic fluidized bed outlet 7 and carries out precipitate and separate from aerobic fluidized bed 1 come the original material particle that circulate, finally enter sludge settling bed 4 from bed material granules regeneration bed outlet 9 and carry out solid-liquid separation, obtain the sewage handled well and mud finally discharges fluidisation bed waste water treatment system through sewage outlet 10 and sludge outlet 11 respectively, as shown in Figure 2 by aerating apparatus 5 air feed ratio (pressing 50%:50% with top aerating apparatus air feed ratio bottom aerobic fluidized bed 1 to arrange) bottom increase aerobic fluidized bed 1, bed material in aerobic fluidized bed 1 is regulated to be carried the quantity flowing out aerobic fluidized bed 1 from aerobic fluidized bed outlet 7 by bubble.The bed material flowing out aerobic fluidized bed 1 enters hypoxic/anaerobic fluidized-bed 2 from bed material returning charge mouth 8 after bed material granules regeneration bed 3 Solid-Liquid Separation.Adding due to new particle in hypoxic/anaerobic fluidized-bed 2, bed height raises, and partial particulate flows into aerobic fluidized bed 1 through bed material particles circulating mouth 6.The fluidized-bed Sewage treatment systems load of whole process implementation has the internal recycle of active bio membrane granule.
Can regular replenishment new bed material particle at bed material granules regeneration bed 3, by by vexed quick-fried to active sludge and bed material particle (comprise newly add bed material particle and original of coming from aerobic fluidized bed circulation expects particle), make particle to be formed active immobilized biomembrane.With the bed material particle that replenishment system runs off, ensure bed material total amount in fluidized-bed Sewage treatment systems, make hypoxic/anaerobic fluidized-bed and aerobic fluidized bed interior close phase section highly substantially keep constant.Utilize the present embodiment device and operation method thereof to dispose of sewage, experimental result sees the following form:
As seen from the above table, the present invention is good to the treatment effect of sewage, and the clearance of total nitrogen reaches 81%, and the rate of removing of total phosphorus reaches 95%, and the average removal rate of total COD reaches 92%, and the clearance of ammonia nitrogen reaches 85%.
Claims (10)
1. a small-sized fluidized bed Sewage treatment systems, it is characterized in that, comprise concentrate in a reactor be communicated with successively aerobic fluidized bed (1), hypoxic/anaerobic fluidized-bed (2), bed material granules regeneration bed (3) and sludge settling bed (4); Solid Bed material is filled with in described aerobic fluidized bed (1) and hypoxic/anaerobic fluidized-bed (2), on described Solid Bed material, growth has active biological film, also be provided with aerating apparatus (5) in described aerobic fluidized bed (1), the middle and upper part of the sides adjacent of described aerobic fluidized bed (1) and hypoxic/anaerobic fluidized-bed (2) is provided with bed material particles circulating mouth (6), top is provided with aerobic fluidized bed outlet (7); On Solid Bed material emulsion zone in described aerobic fluidized bed (1) and hypoxic/anaerobic fluidized-bed (2), interface is lower than bed material particles circulating mouth (6); Described aerobic fluidized bed (1) is also communicated with the top of bed material granules regeneration bed (3) through aerobic fluidized bed outlet (7); Described hypoxic/anaerobic fluidized-bed (2) bottom is provided with water-in, and described hypoxic/anaerobic fluidized-bed (2) is provided with bed material returning charge mouth (8) with the middle and lower part of bed material granules regeneration bed (3) sides adjacent; Described bed material granules regeneration bed (3) is provided with bed material granules regeneration bed with the middle part of sludge settling bed (4) sides adjacent and exports (9); Described sludge settling bed (4) bottom is provided with sludge outlet (11), top is provided with sewage outlet (10); The water outlet that the water-in that described aerobic fluidized bed (1) bottom is provided with is provided with top via backflow water pipe is communicated with, and the water outlet at aerobic fluidized bed (1) top is also communicated with the water-in of hypoxic/anaerobic fluidized-bed (2) bottom through backflow water pipe; The water outlet at described hypoxic/anaerobic fluidized-bed (2) top and the water-in of bottom are by backflow cross current.
2. small-sized fluidized bed Sewage treatment systems according to claim 1, is characterized in that, described aerating apparatus (5) is stratified and set on bottom and the top of aerobic fluidized bed (1) in pairs; The aerating apparatus on the top of described aerobic fluidized bed (1) is higher than interface on aerobic fluidized bed (1) interior bed material emulsion zone.
3. small-sized fluidized bed Sewage treatment systems according to claim 1 and 2, is characterized in that, described bed material returning charge mouth (8) is provided with L returning charge valve or spiral material-returning device or both combinations; Described bed material granules regeneration bed outlet (9) is provided with inertial separator or filter screen.
4. small-sized fluidized bed Sewage treatment systems according to claim 1 and 2, is characterized in that, described aerobic fluidized bed outlet (7) is also provided with a material separating device (12); Chemical dephosphorization medicament is added with in described bed material granules regeneration bed (3).
5. small-sized fluidized bed Sewage treatment systems according to claim 4, is characterized in that, described bed material separating device (12) is tube settler bed material or filter screen.
6. the operation method of a small-sized fluidized bed Sewage treatment systems, it is characterized in that, small-sized fluidized bed Sewage treatment systems in claim 1-5 described in arbitrary claim, raw waste water is introduced into hypoxic/anaerobic fluidized-bed to be carried out denitrification, denitrogenation, releases phosphorus, then flow through aerobic fluidized bed, bed material granules regeneration bed, sludge settling bed successively and carry out suction phosphorus, nitrated, solid-liquid separation respectively, obtain the sewage handled well and mud finally discharges fluidisation bed waste water treatment system; Realize growing in aerobic fluidized bed and hypoxic/anaerobic fluidized-bed by regulating the air feed ratio of aerobic fluidized-bed bottom and top aerating apparatus having the internal recycle of the Solid Bed material of active biological film or do not circulate.
7. the operation method of small-sized fluidized bed Sewage treatment systems according to claim 6, it is characterized in that, aerobic fluidized bed interior bed material is regulated to be carried the aerobic fluidized bed quantity of outflow by bubble by increasing aerobic fluidized bed bottom aerating apparatus air feed ratio, enter bed material granules regeneration bed from the aerobic fluidized bed bed material of aerobic fluidized bed outlet outflow and enter hypoxic/anaerobic fluidized-bed from bed material returning charge mouth after Solid-Liquid Separation, adding due to new particle in hypoxic/anaerobic fluidized-bed, bed height raises, partial particulate flows into aerobic fluidized bed through bed material particles circulating mouth thus achieves the internal recycle that the load of fluidized-bed Sewage treatment systems has active bio membrane granule.
8. the operation method of small-sized fluidized bed Sewage treatment systems according to claim 6, it is characterized in that, by reduce aerobic fluidized bed bottom aerating apparatus air feed ratio make aerobic fluidized bed interior bed material by bubble do not carry flow out aerobic fluidized bed thus the fluidized bed material of small-sized fluidized bed Sewage treatment systems is not circulated.
9. the operation method of small-sized fluidized bed Sewage treatment systems according to claim 6, it is characterized in that, the aerobic fluidized bed fluidisation being realized bed material in bed by the liquid self circulation in bed, partially liq in simultaneously aerobic fluidized bed is circulated in hypoxic/anaerobic fluidized-bed, and hypoxic/anaerobic fluidized-bed is by the self-circulation of liquid in the former water of sewage that enters bed, bed and the fluidisation realizing bed material in bed on a small quantity from the circulating liquid in aerobic fluidized bed.
10. the operation method of small-sized fluidized bed Sewage treatment systems according to claim 6, it is characterized in that, at bed material granules regeneration bed regular replenishment new bed material particle, by by active sludge and bed material particle is vexed exposes to the sun, make particle to be formed immobilized active microbial film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410446942.2A CN104193005B (en) | 2014-09-03 | 2014-09-03 | A kind of small-sized fluidized bed Sewage treatment systems and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410446942.2A CN104193005B (en) | 2014-09-03 | 2014-09-03 | A kind of small-sized fluidized bed Sewage treatment systems and operation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104193005A CN104193005A (en) | 2014-12-10 |
| CN104193005B true CN104193005B (en) | 2016-04-20 |
Family
ID=52078428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410446942.2A Active CN104193005B (en) | 2014-09-03 | 2014-09-03 | A kind of small-sized fluidized bed Sewage treatment systems and operation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104193005B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800869B (en) * | 2016-04-18 | 2018-09-25 | 江苏金梓环境科技股份有限公司 | A kind of recirculating fluidized bed family sewage disposal device |
| CN106830291B (en) * | 2017-01-18 | 2020-06-05 | 中国科学院广州能源研究所 | Operation method of sewage treatment fluidized bed |
| CN208617624U (en) * | 2017-03-28 | 2019-03-19 | 天津西敦津洋环保科技有限公司 | The particle strengthening sewage-treatment plant of packaged type |
| CN106904740A (en) * | 2017-03-29 | 2017-06-30 | 天津西敦津洋环保科技有限公司 | A kind of sewage disposal device of series connection and application |
| CN106904751A (en) * | 2017-03-29 | 2017-06-30 | 中国科学院广州能源研究所 | A kind of micro- heavy particle system and method for sewage disposal |
| CN113135634A (en) * | 2020-01-17 | 2021-07-20 | 重庆化工职业学院 | C-AnOnSewage treatment process |
| CN113292195A (en) * | 2020-09-25 | 2021-08-24 | 重庆化工职业学院 | AnOnSewage treatment equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07323297A (en) * | 1994-05-31 | 1995-12-12 | Ebara Jitsugyo Kk | Biological treatment of organic sewage |
| CN2714556Y (en) * | 2004-06-11 | 2005-08-03 | 尹军 | Sewage nutrient removing device for integrated circulating fluidized bed |
| CN201125187Y (en) * | 2007-11-15 | 2008-10-01 | 中国石油化工股份有限公司 | Three-phase internal circulation biochemical reaction apparatus |
| CN101838045A (en) * | 2010-03-26 | 2010-09-22 | 北京建筑工程学院 | Biological sewage treatment equipment and process of internal recycle suspension padding |
| CN203382563U (en) * | 2013-07-04 | 2014-01-08 | 哈尔滨瀚科环保科技有限公司 | Integral type sewage treatment device for biological effective accumulative process |
| CN204185298U (en) * | 2014-09-03 | 2015-03-04 | 中国科学院广州能源研究所 | A kind of small-sized fluidized bed Sewage treatment systems |
-
2014
- 2014-09-03 CN CN201410446942.2A patent/CN104193005B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104193005A (en) | 2014-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104193005B (en) | A kind of small-sized fluidized bed Sewage treatment systems and operation method thereof | |
| CN104071896B (en) | Granule sludge and biological film coupled integrated sewage treatment method and treatment device suitable for same | |
| CN101514064B (en) | Biological denitrification device of sequencing batch internal circulation biological denitrification process | |
| CN103588296B (en) | Application anaerobic membrane bioreactor processes the method for denitrogenating with desulfurization to sewage | |
| CN201125187Y (en) | Three-phase internal circulation biochemical reaction apparatus | |
| CN203878024U (en) | Wastewater treatment system for culture farm | |
| CN103880248A (en) | Coking wastewater treatment system and treatment method | |
| CN103723896A (en) | Integrated sewage disposal system and disposal method | |
| CN101817615A (en) | Anaerobic-sequencing batch biofilm reactor-artificial wetland method for treating piggery wastewater | |
| CN204185298U (en) | A kind of small-sized fluidized bed Sewage treatment systems | |
| CN106277326A (en) | A kind of aerobic-anaerobic integration granular sludge reactor and the method processing waste water thereof | |
| WO2011066866A1 (en) | An anaerobic wastewater treatment system | |
| CN102786184A (en) | Two-stage A / O-MBR denitrification and dephosphorization apparatus | |
| CN108383320A (en) | A kind of integrated processing method of livestock breeding wastewater | |
| CN106365304A (en) | Penicillin waste water biological enhancement treatment device and method | |
| CN205382058U (en) | Miniature integrated domestic sewage treatment equipment | |
| CN202729946U (en) | Two-stage anoxic/oxic (A/O)-membrane biological reactor (MBR) nitrogen and phosphorus removal device | |
| CN111039521A (en) | Sewage treatment regeneration and reuse system and method for sewage treatment by using same | |
| CN105366889B (en) | A kind of town sewage high standard denitrification dephosphorization system without additional carbon | |
| CN203238141U (en) | Sewage biological treatment membrane filtration system | |
| CN204185292U (en) | Three-dimensional tapered aeration sewage disposal aerobic reactor | |
| CN203768177U (en) | Integrated sewage treatment system | |
| CN203486968U (en) | Sewage treatment reaction pool | |
| CN205528299U (en) | Effluent disposal system of diary farm | |
| CN106587349A (en) | Treating method and apparatus for corn deep-processing wastewater with high contents of ammonia, nitrogen and organic matters |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |