CN205035222U - Processing system suitable for nitrogenous, phosphorous organic waste water - Google Patents
Processing system suitable for nitrogenous, phosphorous organic waste water Download PDFInfo
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- CN205035222U CN205035222U CN201520718019.XU CN201520718019U CN205035222U CN 205035222 U CN205035222 U CN 205035222U CN 201520718019 U CN201520718019 U CN 201520718019U CN 205035222 U CN205035222 U CN 205035222U
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Abstract
The utility model relates to a sewage treatment technical field discloses a processing system suitable for nitrogenous, phosphorous organic waste water, including consecutive feeder hopper (1), pulp homogenizing pool (2), methane -generating pit (3), upflow anaerobic sludge blanket (4), biosorption oxidation reaction pool (5), sedimentation tank (12), micro electrolytic reactor (10), baffled biological aerated filter (6) and ozone disinfection pond (7), the methane -generating pit is connected with sludge tihckener (8), is equipped with the elevator pump in pulp homogenizing pool (2), and the elevator pump links to each other with methane -generating pit (3). The utility model discloses simple process, reaction sequence concentration gradient is big, the difficult sludge bulking that takes place, anti load shock ability reinforce, the treatment effect is good, through adjustment cycle of operation and control the length of each process time, denitrogenation simultaneously, dephosphorization effect are obvious.
Description
Technical field
The utility model relates to technical field of sewage, has particularly related to and has been applicable to treatment system that is nitrogenous, phosphor-containing organic wastewater.
Background technology
Character and the source of ammonia nitrogen in high density organic waste water are different, and its Treatment process is also different.Usually can be divided into three major types according to the character of ammonia nitrogen in high density organic waste water and source: the first kind for not contain hazardous substance and to be easy to biodegradable ammonia nitrogen in high density organic waste water, as food industrial wastewater; Equations of The Second Kind is containing objectionable impurities and is easy to biodegradable ammonia nitrogen in high density organic waste water, as partial chemical industry and pharmacy industry waste water; 3rd class is for containing objectionable impurities and being not easy to biodegradable ammonia nitrogen in high density organic waste water, as organic chemistry compound probability and agricultural chemicals waste water.For be easy to biodegradable ammonia nitrogen in high density organic waste water, as in fermentable beer-production wastewater containing several thousand to several ten thousand COD, while ammonia nitrogen concentration also have hundreds of to arrive several thousand; Breeding wastewater ammonia nitrogen, COD, P are all very high; Also has in some pharmaceutical waste water feature all high while of having ammonia nitrogen and COD.The carbohydrate versions that pollutent in this kind of waste water mainly exists with solid-state, solubilised state exists, and makes waste water show very high BOD
5, COD
cr, SS and colourity etc., pollutent biodegradable is good, in addition in waste water containing nutritive substances such as a large amount of N, P.
The ammonia nitrogen of this kind of water is very high simultaneously, the general object being reached removal of ammonia and nitrogen by stripping or biological denitrification process in conventional treatment process.Stripping process be for the ammonia nitrogen waste water of high density, still do not reach emission standard by its ammonia nitrogen concentration of the waste water after stripping, and running cost is higher.Biological denitrificaion needs ammonia nitrogen and organonitrogen to be oxidized to nitrate, removed by denitrifying process again, such process is applicable to the ammonia nitrogen of lower concentration and is the economic technology processing low-concentration ammonia-nitrogen, but when processing ammonia nitrogen in high density, Chi Ronghui is very large, and causes a large amount of consumption of goods and materials and the energy.Organic waste water at present to high-concentration ammonia-nitrogen, high COD concentration, adopt anaerobism COD can be changed into biogas, can save the organic processing costs of aerobic oxidation, be a kind of effective measure turning waste into wealth, reclaim the energy.Biogas has good calorific value, can as the fuel of boiler, generator.All more single for the treatment system of ammonia nitrogen in high density organic waste water at present, working cost is high.
Summary of the invention
The utility model, for the shortcoming of prior art, discloses and is a kind ofly applicable to treatment system that is nitrogenous, phosphor-containing organic wastewater.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
Be applicable to treatment system that is nitrogenous, phosphor-containing organic wastewater, comprise hopper connected successively, homogenate pond, methane-generating pit, upflow anaerobic sludge blanket reactor, biological adsorption oxidizing reaction pond, settling tank, micro-electrolysis reactor, baffled biological aerated filter and ozonization pond, methane-generating pit is connected with sludge thickener, homogenate is provided with lift pump in pond, and lift pump is connected with methane-generating pit; Methane-generating pit is also connected with biogas and only stores airing system, and biogas is only store airing system and comprised air water separator, methane-desulfurizing device, the first spark arrester, gas-holder successively, and air water separator also connects biogas supercharging device, the second spark arrester, waste-heat recovery device.
Waste water enters in homogenate pond by hopper, anaerobic fermentation system is squeezed under stirring after allotment evenly, methane-generating pit and upflow anaerobic sludge blanket reactor are referred to as anaerobic fermentation system and take front groove, and anaerobic fermentation system takes front groove (i.e. methane-generating pit) and pit (i.e. upflow anaerobic sludge blanket reactor) design.Methane-generating pit is high load region.Be provided with whipping appts bottom methane-generating pit, make the organic waste water of high density groove before anaerobic fermentation system form the state mixed completely, to reach good removal effect.Methane-generating pit top is provided with backflow sprinkling system, stirs to reach internal recycle and prevents scum silica frost from crusting.Methane-generating pit top is provided with water outlet, and bottom is provided with mud discharging mouth, and the sediment produced in anaerobic digestion process is discharged to sludge thickener by mud discharging mouth, takes away after precipitation concentration through sludge pump.Upflow anaerobic sludge blanket reactor is medium loading area, is provided with triphase separator, bottom water inlet, top water outlet, and useless Organic substance in water fully contacts with anaerobion, is conducive to organic decomposition.Water outlet after Anaerobic Digestion enters biological adsorption oxidizing reaction pond and continues organic degraded, and A section is biological adsorption stage, and B section is biological oxidation panel.A section is the main body of adsorption biodegradation, plays a crucial role to whole technique, is made up of A section pond and intermediate sedimentation pond.In the A section aeration tank of non-stop run, extraneous constantly inoculation has the short generation prokaryotic micro-organisms of very strong fecundity and environment resistant changing capability, under the condition of food abundance, metabolism is very fast, the inactivation of appearance and irreversible infringement can be overcome more rapidly, greatly improve the stability for the treatment of process.The microbiological property of A section makes the active sludge of adsorption tank show as: the ability of stronger flocculation, absorption and degradation of organic substances; COD has higher degree of degradation, is degraded to the BOD material of easy biochemical treatment; Strong adaptability, the change of resistance to amount of inlet water, water quality, pH etc., has the ability of anti-shock loading; A section can not only remove a part of organic substance, and can play adjustment and shock absorption.A section adopts high sludge loading, utilizes the adsorption-flocculation ability of active sludge, by the Adsorption of Organic in sewage on active sludge, and then degraded.The large number of biological mud produced avales in intermediate sedimentation pond, and most of organic substance is with outside excess sludge mode removal system.In A section, borrow the effects such as absorption, flocculation, decomposition and precipitation, the organism of about 40% can be removed.
B section is the post-processed degraded in this technique, ensures the key link that effluent quality is up to standard.It is made up of aeration tank and secondary sedimentation basins.After A section, the impact load (water quality, the water yield etc.) of sewage no longer affects B section, and sewage is more stable toward water quality, water yield aspect, and the purification function of B section is given full play to.The organism residued in after the process of A section in sewage continues oxidation in B section, reaches higher sewage treating efficiency, and obtains good effluent quality.
In brief, the sludge output of A section is very large, and P content in sludge is higher than conventional activated sludge method.The surplus sludge volume of B section is few, and mud is long for age, is conducive to breeding slow, that vegetative period is long nitrifier breeding.Therefore, adsorption biodegradation has certain deamination dephosphorization function.
Biogas is only store airing system and is adopted low pressure desulfurization and high pressure dehydration technique, can be widely used in biogas, natural gas gathering, storage and application, can realize adjustable constant voltage air feed, easily control, easy to use, uses gas effect stability.
Micro-electrolysis reactor adopts water inlet top, bottom water-out manners, and iron and carbon are filled in inside, pond.Micro electrolysis tech be utilize iron, charcoal have microbattery reaction, throwing out.In micro-electrolysis reactor, reaction product has very high chemically reactive, at anode, and the nascent state Fe of generation
2+; At negative electrode, the activity [H] of generation, utilizes the potential difference that the two poles of the earth produce, and containing pollutent component generation redox reactions many in ammonia nitrogen in high density organic waste water, makes solvable Substance Transformation become indissoluble or slightly soluble material, by the removing of throwing out precipitation; Macromolecular substance is made to be decomposed into small-molecule substance; Make the mass transfer of some bio-refractory become easy to handle material, while improving the biodegradability containing ammonia nitrogen in high density organic waste water, colourity is also reduced.
By being discharged by water after the sterilization of ozonization pond, it effectively can kill a large amount of microorganism in water and bacterium, improves containing ammonia nitrogen in high density organic wastewater purifying intensity again.
As preferably, baffled biological aerated filter comprises two-stage aerated biological filter and water hole, and two-stage aerated biological filter is communicated with by the water hole of downside; Two-stage aerated biological filter is equipped with packing layer and the first aeration tube, and packing layer the first packing layer and the second packing layer successively from top to bottom, the first packing layer is fixed with microorganism and/or biological enzyme.The utility model completes nitrification and denitrification effect in same BAF, achieves COD, SS, NH
3the synchronous removal of-N and TN.Two-stage aerated biological filter also comprises and is located at catch net on the upside of packing layer, is located at supporting layer on the downside of packing layer; Be located at the filter plate on the downside of supporting layer, between supporting layer and filter plate, be provided with aeration tube.Be provided with aeration tube between supporting layer and filter plate, adopt perforated pipe gas distribution, by the even gas distribution of device, solve that bias current, filler are uneven, tracheae holds susceptible to plugging problem.It is protective layer on the upside of catch net.Also comprise back-purge system, back-purge system comprises aeration tube, backwash tube, back flushing water leg, back flushing water shoot, backwash tube is located in supporting layer, first step BAF is also communicated with by backwash tube with the bottom of second stage BAF, back flushing water leg is located at the upside of first step BAF, and back flushing water shoot is located at the upside of second stage BAF.
As preferably, two-stage aerated biological filter is first step BAF and second stage BAF, is provided with water inlet pipe on the upside of first step BAF, is provided with rising pipe on the upside of the BAF of the second stage.
As preferably, the first packing layer is the urethane bio-sponge filler being fixed with microorganism and/or biological enzyme, and the second packing layer is zeolite and granulated active carbon.The utility model, by the combination of different filtrate, enhances the synchronous removal effect of multiple pollutant, improves system capacity of resisting impact load, greatly reduces the possibility hardening and occur.A. zeolite has the feature of selective adsorption ammonia nitrogen, and its surface also can form microbial film (becoming biozeolite) and the removal ability of ammonia nitrogen is improved simultaneously.Zeolite and granulated active carbon combine, and extend the work period of zeolite, make the biological growth on granulated active carbon good, can ensure when there not being long-term ammonia nitrogen in high density to impact zeolite long-time running and without the need to regenerating, economic and reliable.B. be fixed with microorganism and/or biological enzyme in urethane bio-sponge filler, be placed in the packing layer of upside (i.e. the first packing layer), to remove SS and other pollutents further.After fixation of microbe and/or biological enzyme, urethane bio-sponge filling carrier density is close to the density of water, and have larger specific surface area, biofilm is easy, thus biological load amount is large, exceeds more than 5 times than existing effluent purification method; And microbial film (i.e. microorganism and/or biological enzyme) upgrades than very fast, thus microorganism (i.e. microorganism and/or biological enzyme) has higher activity, substantially increases processing efficiency and wastewater treatment efficiency.C. due to the combination of multimedium filler, make filter material layer present semifixed semifluid state, flowing carrier constantly carries out contacting with bubble and constantly cuts, and thus its oxygen-transfer efficiency is high, is conducive to accelerating organic oxidation rate.
As preferably, methane-generating pit top is provided with backflow sprinkling system and water outlet, is provided with whipping appts and mud discharging mouth bottom methane-generating pit, and mud discharging mouth connects sludge thickener.Be provided with whipping appts bottom methane-generating pit, make the organic waste water of high density groove before anaerobic fermentation system form the state mixed completely, to reach good removal effect.Methane-generating pit top is provided with backflow sprinkling system, stirs to reach internal recycle and prevents scum silica frost from crusting.Methane-generating pit top is provided with water outlet, and bottom is provided with mud discharging mouth, and the sediment produced in anaerobic digestion process is discharged to sludge thickener by mud discharging mouth, takes away after precipitation concentration through sludge pump.
As preferably, methane-generating pit is provided with mud discharging mouth, and mud discharging mouth connects sludge thickener.The sediment produced in anaerobic digestion process is discharged to sludge thickener by mud discharging mouth, takes away after precipitation concentration through sludge pump.
As preferably, between upflow anaerobic sludge blanket reactor and biological adsorption oxidizing reaction pond, be provided with equalizing tank.
As preferably, biological adsorption oxidizing reaction pond comprises biological adsorption section and bio-oxidation section.Biological adsorption oxidizing reaction pond (AB reaction tank) is mainly used in dephosphorization, and A section is biological adsorption stage, and B section is biological oxidation panel, and A section and B section are all aeration aerobic sections; The suction phosphorus growth of microorganism in biological adsorption section and bio-oxidation section, phosphor-removing effect is good especially.The remarkably productive of it shows as: the low organic substance (comprising phosphorus) waited in microorganism quick adsorption water of A section, reduces rapidly the BOD level in water body, about 50%; B section microorganism is aeration aerobic growth, and the microorganism grade of this section is a little more than A section, and be suitable for the growth of aerobic suction phosphorus, phosphor-removing effect is good.
Compared with prior art, the beneficial effects of the utility model are:
Enter in homogenate pond containing ammonia nitrogen in high density organic waste water by hopper, anaerobic fermentation system is squeezed under stirring after allotment evenly, methane-generating pit and upflow anaerobic sludge blanket reactor are referred to as anaerobic fermentation system and take front groove, and anaerobic fermentation system takes front groove (i.e. methane-generating pit) and pit (i.e. upflow anaerobic sludge blanket reactor) design.Methane-generating pit is high load region.Be provided with whipping appts bottom methane-generating pit, make the organic waste water of high density groove before anaerobic fermentation system form the state mixed completely, to reach good removal effect.Methane-generating pit top is provided with backflow sprinkling system, stirs to reach internal recycle and prevents scum silica frost from crusting.Methane-generating pit top is provided with water outlet, and bottom is provided with mud discharging mouth, and the sediment produced in anaerobic digestion process is discharged to sludge thickener by mud discharging mouth, takes away after precipitation concentration through sludge pump.Upflow anaerobic sludge blanket reactor is medium loading area, is provided with triphase separator, bottom water inlet, top water outlet, and useless Organic substance in water fully contacts with anaerobion, and be conducive to organic decomposition, waste water enters activated sludge reaction pond and continues organic degraded.Then methane-generating pit enters biological adsorption oxidizing reaction pond containing ammonia nitrogen in high density organic waste water, continue organic degraded, biological adsorption oxidizing reaction pond (AB) is made up of A section (biological adsorption section) and B section (bio-oxidation section), all aeration aerobic sections, A section and B section have oneself independently return-flow system separately, the microbial population of respective uniqueness, two sections are separately highly profitable to the suction phosphorus growth of each section of microorganism, treatment effect is stablized, waste water after dephosphorization enters micro-electrolysis reactor, micro-electrolysis reactor adopts bottom water inlet, top water-out manners, iron and carbon are filled in inside, pond.Light electrolysis be utilize iron, charcoal has microbattery reaction, throwing out, to reduce the content of COD and decolorizing effect obvious.Then baffled biological aerated filter (BBAF) is entered, baffled biological aerated filter (BBAF) integrates aeration, fast filtering, suspended substance retain, two expose to the sun two heavy, regularly recoil, it is the baffling denitrogenation dephosphorizing reactor of a kind of typical high loading, submerged, immobilization biological bed, sewage after process is better than emission standard, can realize Treated sewage reusing.
The utility model comprises hopper connected successively, homogenate pond, methane-generating pit, upflow anaerobic sludge blanket reactor, biological adsorption oxidizing reaction pond, settling tank, micro-electrolysis reactor, baffled biological aerated filter and ozonization pond, methane-generating pit is connected with sludge thickener, technique is simple, reaction process concentration gradient is large, not easily sludge bulking occurs; Anti-load impact ability is strong, and treatment effect is good; By adjust operation cycle and the length controlling each activity time, denitrogenation simultaneously, phosphor-removing effect obviously, and do not need additionally to increase reactor.In addition, following beneficial effect is also had: (1) is high to organic substrates removal efficiency.(2) system run all right.Be mainly manifested in: effluent quality fluctuation is little, has extremely strong anti impulsion load ability, has good sludge settling property.(3) good Nitrogen/Phosphorus Removal is had.(4) energy-conservation.Working cost is low, and current consumption is low, recyclable biogas energy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of baffled biological aerated filter.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Embodiment 1
Be applicable to treatment system that is nitrogenous, phosphor-containing organic wastewater, as shown in Figure 1-2, comprise hopper 1 connected successively, homogenate pond 2, methane-generating pit 3, upflow anaerobic sludge blanket reactor 4, biological adsorption oxidizing reaction pond 5, settling tank 12, micro-electrolysis reactor 10, baffled biological aerated filter 6 and ozonization pond 7, methane-generating pit is connected with sludge thickener 8, be provided with lift pump in homogenate pond 2, lift pump is connected with methane-generating pit 3; Methane-generating pit 3 is also connected with biogas and only stores airing system, biogas is only store airing system and is comprised air water separator 91, methane-desulfurizing device 92, first spark arrester 931, gas-holder 94 successively, and air water separator 91 also connects biogas supercharging device 95, second spark arrester 932, waste-heat recovery device 96.
Embodiment 2
Be applicable to treatment system that is nitrogenous, phosphor-containing organic wastewater, as shown in Figure 1, comprise hopper 1 connected successively, homogenate pond 2, methane-generating pit 3, upflow anaerobic sludge blanket reactor 4, biological adsorption oxidizing reaction pond 5, settling tank 12, micro-electrolysis reactor 10, baffled biological aerated filter 6 and ozonization pond 7, methane-generating pit is connected with sludge thickener 8, be provided with lift pump in homogenate pond 2, lift pump is connected with methane-generating pit 3; Methane-generating pit 3 is also connected with biogas and only stores airing system, biogas is only store airing system and is comprised air water separator 91, methane-desulfurizing device 92, first spark arrester 931, gas-holder 94 successively, and air water separator 91 also connects biogas supercharging device 95, second spark arrester 932, waste-heat recovery device 96.Equalizing tank 11 is provided with between upflow anaerobic sludge blanket reactor 4 and biological adsorption oxidizing reaction pond 5.
Baffled biological aerated filter 6 comprises two-stage aerated biological filter 61 and water hole 62, and two-stage aerated biological filter 61 is communicated with by the water hole 62 of downside; Two-stage aerated biological filter 61 is equipped with packing layer and the first aeration tube 63, and the first packing layer 64 and the second packing layer 65, first packing layer 64 are fixed with microorganism and/or biological enzyme to packing layer successively from top to bottom.Two-stage aerated biological filter 61 is first step BAF 611 and second stage BAF 612, is provided with water inlet pipe 66 on the upside of first step BAF 611, is provided with rising pipe 67 on the upside of second stage BAF 612.First packing layer 64 is for being fixed with the urethane bio-sponge filler of microorganism and/or biological enzyme, and the second packing layer 65 is zeolite and granulated active carbon.
Methane-generating pit 3 top is provided with backflow sprinkling system and water outlet, is provided with whipping appts and mud discharging mouth bottom methane-generating pit 3, and mud discharging mouth connects sludge thickener 8.Upflow anaerobic sludge blanket reactor 4 is provided with triphase separator.Methane-generating pit 3 is provided with mud discharging mouth, and mud discharging mouth connects sludge thickener 8.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (8)
1. be applicable to treatment system that is nitrogenous, phosphor-containing organic wastewater, it is characterized in that: comprise be connected successively hopper (1), homogenate pond (2), methane-generating pit (3), upflow anaerobic sludge blanket reactor (4), biological adsorption oxidizing reaction pond (5), settling tank (12), micro-electrolysis reactor (10), baffled biological aerated filter (6) and ozonization pond (7), methane-generating pit is connected with sludge thickener (8), homogenate pond is provided with lift pump in (2), and lift pump is connected with methane-generating pit (3); Methane-generating pit (3) is also connected with biogas and only stores airing system, biogas is only store airing system and is comprised air water separator (91), methane-desulfurizing device (92), the first spark arrester (931), gas-holder (94) successively, and air water separator (91) also connects biogas supercharging device (95), the second spark arrester (932), waste-heat recovery device (96).
2. be according to claim 1ly applicable to treatment system that is nitrogenous, phosphor-containing organic wastewater, it is characterized in that: baffled biological aerated filter (6) comprises two-stage aerated biological filter (61) and water hole (62), two-stage aerated biological filter (61) is communicated with by the water hole (62) of downside; Two-stage aerated biological filter (61) is equipped with packing layer and the first aeration tube (63), packing layer the first packing layer (64) and the second packing layer (65) successively from top to bottom, the first packing layer (64) is fixed with microorganism and/or biological enzyme.
3. be according to claim 2ly applicable to treatment system that is nitrogenous, phosphor-containing organic wastewater, it is characterized in that: two-stage aerated biological filter (61) is first step BAF (611) and second stage BAF (612), first step BAF (611) upside is provided with water inlet pipe (66), and second stage BAF (612) upside is provided with rising pipe (67).
4. be according to claim 2ly applicable to treatment system that is nitrogenous, phosphor-containing organic wastewater; it is characterized in that: the first packing layer (64) is for being fixed with the urethane bio-sponge filler of microorganism and/or biological enzyme, and the second packing layer (65) is zeolite and granulated active carbon.
5. be according to claim 1ly applicable to treatment system that is nitrogenous, phosphor-containing organic wastewater, it is characterized in that: methane-generating pit (3) top is provided with backflow sprinkling system and water outlet, methane-generating pit (3) bottom is provided with whipping appts and mud discharging mouth, and mud discharging mouth connects sludge thickener (8).
6. be according to claim 1ly applicable to treatment system that is nitrogenous, phosphor-containing organic wastewater, it is characterized in that: methane-generating pit (3) is provided with mud discharging mouth, mud discharging mouth connects sludge thickener (8).
7. be according to claim 1ly applicable to treatment system that is nitrogenous, phosphor-containing organic wastewater, it is characterized in that: between upflow anaerobic sludge blanket reactor (4) and biological adsorption oxidizing reaction pond (5), be provided with equalizing tank (11).
8. be according to claim 1ly applicable to treatment system that is nitrogenous, phosphor-containing organic wastewater, it is characterized in that: biological adsorption oxidizing reaction pond (5) comprises biological adsorption section and bio-oxidation section.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109110911A (en) * | 2018-10-30 | 2019-01-01 | 上海理工大学 | A kind of drawer type biofilter coupling microbiological fuel cell composite system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109110911A (en) * | 2018-10-30 | 2019-01-01 | 上海理工大学 | A kind of drawer type biofilter coupling microbiological fuel cell composite system |
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