CN205088063U - Handle high -concentration ammonia nitrogen organic waste water's equipment - Google Patents
Handle high -concentration ammonia nitrogen organic waste water's equipment Download PDFInfo
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- CN205088063U CN205088063U CN201520717744.5U CN201520717744U CN205088063U CN 205088063 U CN205088063 U CN 205088063U CN 201520717744 U CN201520717744 U CN 201520717744U CN 205088063 U CN205088063 U CN 205088063U
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- ammonia nitrogen
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Abstract
The utility model relates to a sewage treatment technical field discloses a handle high -concentration ammonia nitrogen organic waste water's equipment, including consecutive feeder hopper (1), pulp homogenizing pool (2), upflow solid anaerobic reactor (3), bio -contact oxidation tank (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 the equipment of process ammonia nitrogen in high density organic waste water.
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, CODCr, 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 a kind of equipment processing ammonia nitrogen in high density organic waste water.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
The equipment of process ammonia nitrogen in high density organic waste water, comprise hopper connected successively, homogenate pond, flow lifting type Solid anaerobic reactor, biological contact oxidation pond, settling tank, micro-electrolysis reactor, baffled biological aerated filter and ozonization pond, flow lifting type Solid anaerobic reactor is connected with sludge thickener, homogenate is provided with lift pump in pond, and lift pump is connected with flow lifting type Solid anaerobic reactor.
Ammonia nitrogen in high density organic waste water squeezes into anaerobic fermentation system through lift pump, and anaerobic fermentation system adopts flow lifting type Solid anaerobic reactor, and its underpart is the Solid Bed containing high density anaerobion.Fermentation raw material enters from reactor bottom, rely on charging and produce biogas lifting power by certain speed to upwelling; When feed liquid is by high density anaerobion Solid Bed, organism is decomposed fermentation, and supernatant liquor is discharged from reactor top; Indigested biomass solid particle and methane fermentating microorganism are stranded in digestive organ by natural subsidence, supernatant liquor overflows from digestive organ top, the solids retention phase (SRT) more much higher than hydraulic retention times (HRT) and microorganism residence time (MRT) can be obtained like this, thus improve the rate of decomposition of solid organic matters and the efficiency of digestive organ.Be provided with water distribution system in flow lifting type Solid anaerobic reactor, bottom is high density anerobe bed, and top arranges skimming plate.The sediment produced in anaerobic digestion process is discharged to sludge thickener by excess sludge discharge mouth, takes away after precipitation concentration through sludge pump.The water outlet of flow lifting type Solid anaerobic reactor enters biological contact oxidation pond and continues organic degraded, biological contact oxidation pond is made up of anaerobic pond, anoxic pond and Aerobic Pond, then settling tank is entered containing ammonia nitrogen in high density organic waste water, remove part ss suspended solid, reduce the load of subsequent disposal, settling tank water outlet enters micro-electrolysis reactor.Mainly carry out the release of phosphorus at anaerobic pond, the concentration of phosphor in sewage is raised, and deliquescent organism is made the BOD density loss in sewage by Cell uptake; Part NH in addition
3-N is removed because of the synthesis of cell, makes the NH in sewage
3-N density loss.In Aerobic Pond, organism is oxidized by microbial biochemical, and continues to decline; Organonitrogen is then nitrated by ammonification, makes NH
3-N concentration significantly declines, but makes NO along with nitrifying process
3-N concentration increases, and phosphorus is along with the excess ingestion of polyP bacteria, and also speed declines faster.So, A
2/ O technique can complete the functions such as organic removal, denitrifying denitrogenation, excess ingestion removal phosphorus simultaneously, and the prerequisite of denitrogenation is NH
3-N should be completely nitrated, and Aerobic Pond can complete this function.
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.
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.
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, be provided with water distribution system in flow lifting type Solid anaerobic reactor, flow lifting type Solid anaerobic reactor bottom is provided with anerobe bed, and flow lifting type Solid anaerobic reactor top is provided with skimming plate.
As preferably, flow lifting type Solid anaerobic reactor 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 flow lifting type Solid anaerobic reactor and biological contact oxidation pond, be provided with equalizing tank.
As preferably, biological contact oxidation pond comprises anaerobic pond and Aerobic Pond, and anaerobic pond is connected by pipeline with Aerobic Pond.Mainly carry out the release of phosphorus at anaerobic pond, the concentration of phosphor in sewage is raised, and deliquescent organism is made the BOD density loss in sewage by Cell uptake; Part NH in addition
3-N is removed because of the synthesis of cell, makes the NH in sewage
3-N density loss.In Aerobic Pond, organism is oxidized by microbial biochemical, and continues to decline; Organonitrogen is then nitrated by ammonification, makes NH
3-N concentration significantly declines, but makes NO along with nitrifying process
3-N concentration increases, and phosphorus is along with the excess ingestion of polyP bacteria, and also speed declines faster.So, A
2/ O technique can complete the functions such as organic removal, denitrifying denitrogenation, excess ingestion removal phosphorus simultaneously, and the prerequisite of denitrogenation is NH
3-N should be completely nitrated, and Aerobic Pond can complete this function.
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, squeeze into anaerobic fermentation system under stirring after allotment evenly, anaerobic fermentation system adopts flow lifting type Solid anaerobic reactor, and its underpart is the Solid Bed containing high density anaerobion.Fermentation raw material enters from reactor bottom, rely on charging and produce biogas lifting power by certain speed to upwelling; When feed liquid is by high density anaerobion Solid Bed, organism is decomposed fermentation, and supernatant liquor is discharged from reactor top; Indigested biomass solid particle and methane fermentating microorganism are stranded in digestive organ by natural subsidence, supernatant liquor overflows from digestive organ top, the solids retention phase (SRT) more much higher than hydraulic retention times (HRT) and microorganism residence time (MRT) can be obtained like this, thus improve the rate of decomposition of solid organic matters and the efficiency of digestive organ.Be provided with water distribution system in flow lifting type Solid anaerobic reactor, bottom is high density anerobe bed, and top arranges skimming plate.The sediment produced in anaerobic digestion process is discharged to sludge thickener by excess sludge discharge mouth, takes away after precipitation concentration through sludge pump.Then biological contact oxidation pond is entered containing ammonia nitrogen in high density organic waste water, complete the functions such as organic removal, denitrifying denitrogenation, excess ingestion removal phosphorus, enter micro-electrolysis reactor again, micro-electrolysis reactor adopts bottom water inlet, top water-out manners, and 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 circulation 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, flow lifting type Solid anaerobic reactor, biological contact oxidation pond, settling tank, micro-electrolysis reactor, baffled biological aerated filter and ozonization pond, flow lifting type Solid anaerobic reactor 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) to change of water quality strong adaptability, standard water discharge and stability is high, mud is easy to process.
(2) economical and energy saving.Working cost is low, cost is low and it is few to take up an area.Working cost one is lift pump room power consumption, generally accounts for 20% ~ 30% of working cost, mainly loses relevant with elevation at the bottom of water outlet water level elevation, water inlet pipe and technical process; Two is air blast machine room power consumptions, generally accounts for 50% ~ 60% of working cost, mainly requires relevant with Inlet and outlet water BOD5 or ammonia nitrogen etc.
(3) be easy to management, convenient operation and management, equipment is reliable and easy to maintenance.
(4) baffled biological aerated filter is using the larger rough porous granular filler of surface area ratio as biofilm carrier, no matter be biological or organically portative power all strengthens, biological concentration is high, biophase is complicated, Bacterial community is reasonable.Due to the mechanical retention effect of filler, filter material surface microorganism and metabolism produce the adsorption bridging effect that viscous substance is formed, and all effectively can remove SS, reduce the amount of active sludge.
(5) environmental protection and energy saving.1. in flow lifting type Solid anaerobic reactor, waste water is under gravity, the solid that proportion is larger and microbial accumulation are in the bottom of reactor, reactor is made to remain higher amount of solid and biomass, namely have longer SRT and MRT, this is the basic reason of flow lifting type Solid anaerobic reactor energy steady running under higher load condition.Because SRT is longer, the mud that water outlet is taken out of does not need backflow, can digestion of solid thing comparatively thoroughly, and suspended solids (SS) clearance is 60% ~ 70%.2. when overload operation, sludge settling property is deteriorated, and water outlet chemical oxygen demand (COD) (COD) raises, but generally can not cause acidifying.3. gas producing efficiency is high.Biogas can be used to generating, plays the effect of energy-conserving and environment-protective.
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
The equipment of process ammonia nitrogen in high density organic waste water, as shown in Figure 1-2, comprise hopper 1 connected successively, homogenate pond 2, flow lifting type Solid anaerobic reactor 3, biological contact oxidation pond 5, settling tank 12, micro-electrolysis reactor 10, baffled biological aerated filter 6 and ozonization pond 7, flow lifting type Solid anaerobic reactor is connected with sludge thickener 8, be provided with lift pump in homogenate pond 2, lift pump is connected with flow lifting type Solid anaerobic reactor 3.
Embodiment 2
The equipment of process ammonia nitrogen in high density organic waste water, as shown in Figure 1-2, comprise hopper 1 connected successively, homogenate pond 2, flow lifting type Solid anaerobic reactor 3, biological contact oxidation pond 5, settling tank 12, micro-electrolysis reactor 10, baffled biological aerated filter 6 and ozonization pond 7, flow lifting type Solid anaerobic reactor is connected with sludge thickener 8, lift pump is provided with in homogenate pond 2, lift pump is connected with flow lifting type Solid anaerobic reactor 3, is provided with equalizing tank 11 between flow lifting type Solid anaerobic reactor 3 and biological contact oxidation 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.
Be provided with water distribution system in flow lifting type Solid anaerobic reactor 3, be provided with anerobe bed bottom flow lifting type Solid anaerobic reactor 3, flow lifting type Solid anaerobic reactor 3 top is provided with skimming plate.Flow lifting type Solid anaerobic reactor 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 (7)
1. process the equipment of ammonia nitrogen in high density organic waste water, it is characterized in that: comprise be connected successively hopper (1), homogenate pond (2), flow lifting type Solid anaerobic reactor (3), biological contact oxidation pond (5), settling tank (12), micro-electrolysis reactor (10), baffled biological aerated filter (6) and ozonization pond (7), flow lifting type Solid anaerobic reactor is connected with sludge thickener (8), homogenate pond is provided with lift pump in (2), and lift pump is connected with flow lifting type Solid anaerobic reactor (3); Biological contact oxidation pond (5) comprises anaerobic pond and Aerobic Pond, and anaerobic pond is connected by pipeline with Aerobic Pond.
2. the equipment of process ammonia nitrogen in high density organic waste water according to claim 1, 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. the equipment of process ammonia nitrogen in high density organic waste water according to claim 2, 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. the equipment of process ammonia nitrogen in high density organic waste water according to claim 2; 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. the equipment of process ammonia nitrogen in high density organic waste water according to claim 1, it is characterized in that: in flow lifting type Solid anaerobic reactor (3), be provided with water distribution system, flow lifting type Solid anaerobic reactor (3) bottom is provided with anerobe bed, and flow lifting type Solid anaerobic reactor (3) top is provided with skimming plate.
6. the equipment of process ammonia nitrogen in high density organic waste water according to claim 1, is characterized in that: flow lifting type Solid anaerobic reactor (3) is provided with mud discharging mouth, and mud discharging mouth connects sludge thickener (8).
7. the equipment of process ammonia nitrogen in high density organic waste water according to claim 1, is characterized in that: be provided with equalizing tank (11) between flow lifting type Solid anaerobic reactor (3) and biological contact oxidation pond (5).
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| CN201520717744.5U CN205088063U (en) | 2015-09-16 | 2015-09-16 | Handle high -concentration ammonia nitrogen organic waste water's equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108751622A (en) * | 2018-08-03 | 2018-11-06 | 江西省科学院 | A kind of control method by seasonal adjustment treatment of swine wastewater flow |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108751622A (en) * | 2018-08-03 | 2018-11-06 | 江西省科学院 | A kind of control method by seasonal adjustment treatment of swine wastewater flow |
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Granted publication date: 20160316 Termination date: 20210916 |