CN1850656A - Method for treating phenol-contained waste water by anaerobic-aerobic coupled biological fluidizing bed - Google Patents
Method for treating phenol-contained waste water by anaerobic-aerobic coupled biological fluidizing bed Download PDFInfo
- Publication number
- CN1850656A CN1850656A CN 200610012071 CN200610012071A CN1850656A CN 1850656 A CN1850656 A CN 1850656A CN 200610012071 CN200610012071 CN 200610012071 CN 200610012071 A CN200610012071 A CN 200610012071A CN 1850656 A CN1850656 A CN 1850656A
- Authority
- CN
- China
- Prior art keywords
- anaerobic
- waste water
- bed
- aerobic
- biological
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 64
- 239000002351 wastewater Substances 0.000 title claims abstract description 59
- 230000008569 process Effects 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000005273 aeration Methods 0.000 claims abstract description 9
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 238000004065 wastewater treatment Methods 0.000 claims description 18
- CUXQLKLUPGTTKL-UHFFFAOYSA-M microcosmic salt Chemical compound [NH4+].[Na+].OP([O-])([O-])=O CUXQLKLUPGTTKL-UHFFFAOYSA-M 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 150000002829 nitrogen Chemical class 0.000 claims description 6
- 235000015097 nutrients Nutrition 0.000 claims description 6
- 230000000050 nutritive effect Effects 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000004793 Polystyrene Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract description 25
- 238000006065 biodegradation reaction Methods 0.000 abstract description 9
- 230000008878 coupling Effects 0.000 abstract description 9
- 238000010168 coupling process Methods 0.000 abstract description 9
- 238000005859 coupling reaction Methods 0.000 abstract description 9
- 239000000969 carrier Substances 0.000 abstract 1
- 230000000593 degrading effect Effects 0.000 abstract 1
- 239000010802 sludge Substances 0.000 description 31
- 238000005516 engineering process Methods 0.000 description 11
- 230000015556 catabolic process Effects 0.000 description 9
- 238000006731 degradation reaction Methods 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 244000005700 microbiome Species 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000008103 glucose Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000012163 sequencing technique Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002599 biostatic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100001234 toxic pollutant Toxicity 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
Landscapes
- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention relates to a method for processing phenol-containing waste water by anaerobic-aerobic coupling biofluidized bed, firstly making the waste water enter in a regulating pondage and then enter in a biofluidized bed containing macroporous suspended carriers for aeration and degrading the waste water by the anaerobic-aerobic coupling biotreatment; then draining the degraded waste water out of the biofluidized bed, placing still, draining upper-layer standard-reaching water, discharging a small part of the lower-layer water with deposited mud and returning the large part to the biofluidized bed for continuing taking part in the waste water processing process. And it implements coupling of anaerobic and aerobic biodegradations.
Description
Technical field
The present invention relates to a kind of method for the treatment of phenol-contained waste water by anaerobic-aerobic coupled biological fluidizing bed, relate in particular to a kind of treatment process, belong to environmental engineering and technology for treating industrial waste water field at phenolic waste water.
Background technology
Phenolic wastewater is mainly derived from coking, coal gas and petrochemical industry, is a class organic wastewater with difficult degradation thereby.And phenol is in phenolic compound toxic maximum, and Environmental Protection Agency is listed phenol in 65 kinds of toxic pollutant lists of priority pollutant, and China is also listed phenol among the Chinese environmental priority pollutant Black List in.Along with the continuous expansion of commercial production scale, the quantity discharged of phenolic wastewater improves day by day, thereby associated phenolic wastewater treatment technology occurred.
At present, the treatment process of phenolic wastewater mainly comprises extraction process, absorption method, chemical oxidization method and activated sludge process etc.Extraction process, absorption method and chemical oxidization method etc. are traditional method of wastewater treatment, because these methods exist investment big, the working cost height is easy to environment is caused secondary pollution problems, are restricted in the application of large-scale industry field of waste water treatment.The activated sludge process working cost is low, and operation is simple, and the water outlet non-secondary pollution is most important process for treating industrial waste water.
In the technology of Wastewater Treated by Activated Sludge Process phenolic wastewater, sectional type anaerobic aerobic activated sludge technology is the main processing mode of present used water difficult to degradate, waste water passes through the processing of anaerobic pond, amphimicrobian pond and Aerobic Pond in certain sequence, realize the removal of difficult degradation composition, this art breading effect is better, but the purification tank for liquid waste floor space is big, processing efficiency is low, anaerobic device starts difficult in maintenance, and hydraulic detention time is long, and investment cost is higher.In recent years, along with the application of biological fluidized bed in field of waste water treatment, and the proposition of integral anaerobic biological degradation and aerobic biodegradation technology, the treatment effect of used water difficult to degradate is obviously improved, relevant wastewater processing technology is subjected to increasingly extensive attention.
Biological fluidized bed is a kind of novel wastewater treatment equipment that occurs in recent years, it comprises inner loop fluidized bed reactor and two kinds of forms of outer circulation biological fluidized bed, wherein the guide shell of inner loop fluidized bed reactor can be divided into one-level and multistage again, and one multi-form with many etc.Biological fluidized bed is applied to field of waste water treatment, makes that the gas-liquid-solid three-phase mixed effect is good, and floor space is little, can improve air, waste water and the triphasic contact area of carrier mud greatly, has improved the processing efficiency of aerobic activated sludge process.
Simultaneously, based on the characteristics of biological fluidized bed, develop some and in same reactor, carry out anaerobic biodegradation and aerobic biodegradable flow process.For example: utilize internal-circulation type biological fluidized bed inner core dissolved oxygen height, characteristics that the urceolus dissolved oxygen is low, by the internal structure transformation, can strengthen the aerobic and urceolus anaerobic environment of inner core respectively, make aerobic activated sludge and anaerobic activated sludge coexist as the different positions of same reactor, realized the integrated of anaerobic-aerobic.This type wastewater treatment process technology is simple and direct, and working cost is low, convenient management, but the coupling of aerobic-anaerobic treating processes still need improve, and the structure of reactor or working method are often too complicated.
Be further to improve the efficient of biological fluidized bed, recently the investigator propose inside circulation triphase fluidized bed, particle diameters such as gac, coke at the inorganic carrier of 0.3-2mm or polyethylene, polypropylene organic polymer carrier, are filled in the bed.The particle diameter of the carrier that this type of fluidized-bed is selected is generally very little, it mainly acts on is the surface-area that makes up the core of microorganism growth and increase absorption, thereby make the biomass that keeps high density in the bed, improve air, waste water and the triphasic contact area of carrier mud, this method can obviously improve the efficient of aerobic degradation, but anaerobic process is not coupling in the fluidized-bed.
This patent on the basis of existing technology, be based on the conspiracy relation of biosystem and the high mass transfer coefficient in the biological fluidized bed, the macropore carrier that the equivalent diameter scope is 10-40mm is dosed in proposition in biological fluidized bed, the zone that the suitable anerobe that occurs by carrier inside grows, in biological fluidized bed, introduce anaerobic environment, realize anaerobic biodegradation and the coupling of aerobic biodegradation in same device, thereby improve the method for phenolic wastewater processing efficiency.
Summary of the invention
The objective of the invention is to propose more efficiently phenolic wastewater treatment process for shortcoming such as overcome that existing phenolic wastewater treatment process floor space is big, energy consumption is high, the residence time is long and processing efficiency is low.This method realizes that by anaerobic biological treatment and aerobic biological treatment process are coupled together the anaerobic-aerobic processing is integrated, makes that energy consumption reduction, residence time shortening, processing efficiency raising, investment and the working cost in the phenolic wastewater treating processes reduces.
Technical solution of the present invention is as follows:
A kind of method for the treatment of phenol-contained waste water by anaerobic-aerobic coupled biological fluidizing bed, this method comprises the steps:
A. waste water at first enters equalizing tank, according to the ratio of various nutritive elements in the water, adds nitrogen salt, microcosmic salt and nutrient salts, and regulates wastewater pH between 7.0-8.5;
B. the waste water after regulating enters in the biological fluidized bed that contains the macropore suspending carrier, carries out aeration, handles by anaerobic-aerobic coupled biological, realizes the waste water degraded;
C. discharge fluidized-bed through the water outlet of anaerobic-aerobic coupled processing, enter and carry out mud-water separation in the settling bowl;
D. through leaving standstill, upper strata water up to standard is discharged, lower floor's sedimentation mud small portion discharging, major part is back to and continues to participate in wastewater treatment process in the fluidized-bed.
Core of the present invention is that aerobe and anaerobe survival environment are provided in a biological fluidized bed simultaneously, and the material between while two environment can pass through diffusional interchange, thereby has realized anaerobic biodegradation and aerobic biodegradable coupling.
In biological fluidized bed, be suspended with aerobic activated sludge,,, realize aerobic degradation for aerobic activated sludge provides dissolved oxygen by the aerating apparatus in the biological fluidized bed; The macropore carrier of, chemistry suspensible by dropping in fluidized-bed and Biostatic utilizes the living environment of the anaerobion that exists in the macropore carrier, realizes anaerobic degradation.The kernel portion of macropore carrier is an anaerobic environment, constitutes the obligatory anaerobic bacteria vitellarium, and the skin of carrier is an anaerobic environment, constitutes the facultative anaerobe vitellarium.By passive diffusion and fluidic souring, organism can enter carrier inside, and the anaerobic degradation product of carrier inside also can enter the fluidized-bed main body simultaneously, realizes anaerobic degradation and the coupling of aerobic degradation in same fluidized-bed reactor.
For reaching effect of the present invention, the present invention has also adopted following technical scheme:
1) in whole carrier, having 20% volume at least is the environment that anerobe can grow, simultaneously for reducing material is diffused into the fluidized-bed main body in carrier inside resistance, the concrete size characteristic of carrier satisfies following standard for this reason: the equivalent diameter scope is 10-40mm, any unidimensional smallest dimension is not less than 8mm, range of aperture size is 0.5-2.0mm, and the volume porosity scope is 80%-95%, and its concrete size should be determined according to different industrial requirements.
The ratio range that the volume of the macropore suspending carrier that 2) adds accounts for the biological fluidized bed effective volume is 1-40%, and the optimum range of its dosage is 5-30%.
The material of the macropore suspending carrier that adopts among the present invention can be one or more mixing in polyurethane, urethane, Mierocrystalline cellulose, polyethylene, polypropylene, the polystyrene; Be shaped as different shape or difform mixing; Used biological fluidized bed comprises various forms of inner loop fluidized bed reactors and outer circulation biological fluidized bed.The treatment process of the phenolic wastewater that the present invention proposes both can be applicable to the sequence batch (treatment process and also can be applicable to the continuously streamed treatment process.
Principle of the present invention:
The present invention utilizes biological fluidized bed to replace the ordinary activated sludge aeration tank, has strengthened the effect of mass transmitting of gas-liquid-solid three-phase, improves the utilization ratio of dissolved oxygen and oxygen on the one hand, has strengthened aerobic biodegradation; Make aerobic activated sludge and waste water thorough mixing on the other hand, under lower airshed, improved the processing efficiency of aerobic activated sludge.
The present invention joins porous organic suspension carrier in the aerobic activated sludge system, on the one hand since dissolved oxygen from the resistance of main body aerobic activated sludge system to the carrier inside transmittance process, carrier inside will form anoxic or anaerobic microenvironment gradually; Promote the enrichment and the immobilization of carrier inside and surface microorganism on the other hand.
Because the population of microorganism distributes closely related with residing dissolved oxygen environment, is the aerobic activated sludge system in the fluidized-bed subjective environment, in carrier inside then based on amphimicrobe and obligate anaerobe.Therefore,, strengthened aerobic biodegradation process and anaerobic biodegradation process respectively, tested the coupling that anaerobic biological treatment and aerobe are handled by in aerobic activated sludge technology, introducing biological fluidized bed and porous crack organic suspension carrier technique.
Because aerobic, anaerobic biological treatment process are coupled together in same reactor, Persistent organic pollutants in the waste water are with at first implementation structure transformation in carrying intravital anaerobic environment, the macromolecular substance of Cheng Huan will become chain molecule, change the intermediate product of readily biodegradable into from hard-degraded substance, be diffused into the fluidized-bed main body then, in the aerobic environment of main body, realize further biological degradation.
In sum, advantage of the present invention is:
1) residence time shortening, processing efficiency improve: in the process of anaerobic-aerobic coupled biological facture Phenol-Containing Wastewater Treatment, anaerobic process can effectively improve the biological degradability of hardly degraded organic substance, and intermediate product has and can realization degrade fast in the aerobic processes of strengthening, thereby make the residence time of whole biological treatment process shorten, processing efficiency improves.
2) floor space is little, investment is little: the anaerobic-aerobic coupled biological facture, and utilize biological fluidized bed to replace traditional aeration tank on the one hand, reduced the floor space of aerobic treatment; On the other hand, by introducing the organic macropore suspending carrier in porous crack, it is integrated to make the aerobic-anaerobic treatment process of sectional type realize, thereby has cancelled anaerobic digester, thereby present technique significantly reduced floor space, has saved investment.
3) start, operation and maintenance is simple: the anaerobic-aerobic coupled biological facture is a kind of integrated coupled biological treatment process based on traditional activated sludge process, and technical process is succinct, and startup, the operation and maintenance of wastewater treatment equipment are simple.
4) excess sludge production is little: because the characteristics of organism fluidization height of bed dissolved oxygen, make that microorganism metabolism is vigorous, in whole growth endogenous respiration phase prolongation in the cycle, again because carrier makes anaerobic environment be strengthened, two aspect actings in conjunction have realized the original position degraded of residual active sludge, thereby have reduced the output of excess sludge.
Description of drawings
Fig. 1 processing architecture synoptic diagram of the present invention.
Fig. 2 anaerobic-aerobic coupled environment synoptic diagram of the present invention.
Embodiment
The anaerobic-aerobic coupled biological processing architecture that the present invention proposes is (is example with circulation biological fluidized bed in the air lift type) as shown in Figure 1, main equipment is a biological fluidized bed, inside is provided with aerating apparatus 3, guide shell 4, and organic macropore suspending carrier 2 is evenly distributed in the aerobic activated sludge system 1.
Among the present invention the microenvironment of carrier inside as shown in Figure 2, the kernel portion of the organic macropore suspending carrier in porous crack is an anaerobic environment, constitutes obligatory anaerobic bacteria vitellarium 7; The middle portion of carrier is the oxygen-starved area, constitutes facultative anaerobe vitellarium 6; The top layer of carrier is an aerobic zone, is aerobic bacteria vitellarium 5.
Provide below based on part specific embodiment of the present invention, but the content that patent of the present invention is protected and be limited to embodiment.
Embodiment 1: the microorganism phase in the macropore suspending carrier
Fluid bed type: circulation biological fluidized bed in the air lift type; Useful volume: 19L
Solid support material: polyurethane; The carrier dosage accounts for the volume ratio of reactor useful volume: 1%
Carrier dimensions: 15mm * 15mm * 15mm; Carrier aperture: 1.25mm; Voidage: 95%; Minimum one dimension size: 15mm mud source: waste water treatment plant's second pond mud
A. waste water at first enters equalizing tank, according to the ratio of various nutritive elements in the water, adds nitrogen salt, microcosmic salt and nutrient salts, and regulates wastewater pH about 7.0;
B. the waste water after regulating enters in the biological fluidized bed that contains the macropore suspending carrier, carries out aeration, handles by anaerobic-aerobic coupled biological, realizes the waste water degraded;
C. discharge fluidized-bed through the water outlet of anaerobic-aerobic coupled processing, enter and carry out mud-water separation in the settling bowl;
D. through leaving standstill, upper strata water up to standard is discharged, lower floor's sedimentation mud small portion discharging, major part is back to and continues to participate in wastewater treatment process in the fluidized-bed.
After sludge acclimatization, take out single carrier and carry out scanning electron microscopic observation, can find that the carrier kernel has significant difference mutually with the microorganism of outside, the spirobacteria of some amount has appearred in kernel portion, this is the typical bacterial classification that is grown in anaerobic environment, characterizes macropore suspending carrier inside and has formed anaerobic environment really.
Embodiment 2: sequencing batch activated sludge technology
Fluid bed type: air lift type internal recycle one-level biological fluidized bed; Useful volume: 19L
Solid support material: polyurethane; The carrier dosage accounts for the volume ratio of reactor useful volume: 30%;
Carrier dimensions: 10mm * 10mm * 8mm; Carrier aperture: 0.5mm; Voidage: 80%; Minimum one dimension size: 8mm handles cycle: 12h
A. waste water at first enters equalizing tank, according to the ratio of various nutritive elements in the water, adds nitrogen salt, microcosmic salt and nutrient salts, and regulates wastewater pH about 8.0;
B. the waste water after regulating enters in the biological fluidized bed that contains the macropore suspending carrier, carries out aeration, handles by anaerobic-aerobic coupled biological, realizes the waste water degraded;
C. discharge fluidized-bed through the water outlet of anaerobic-aerobic coupled processing, enter and carry out mud-water separation in the settling bowl;
D. through leaving standstill, upper strata water up to standard is discharged, lower floor's sedimentation mud small portion discharging, major part is back to and continues to participate in wastewater treatment process in the fluidized-bed.
Present embodiment is handled the simulated wastewater that contains phenol, mainly contains phenol, glucose and nitrogen, microcosmic salt class.The COD of wherein intaking
CrBe 3198.8mg/L, phenol content is 865.8mg/L, and pH is 7.33.Water outlet COD
CrBe 59.2mg/L, phenol does not detect, and pH is 7.43.The COD that this is routine
CrClearance is 98.1%, and activated sludge concentration is 7.0g/L, and sludge volume index is 60.0ml/g.
Embodiment 3: sequencing batch activated sludge technology
Fluid bed type: air lift type internal recycle one-level biological fluidized bed; Useful volume: 19L
Solid support material: polyurethane; The carrier dosage accounts for the volume ratio of reactor useful volume: 5%
Carrier dimensions: 25mm * 25mm * 25mm; Carrier aperture: 1.25mm; Voidage: 95%; Minimum one dimension size: 25mm handles cycle: 24h
A. waste water at first enters equalizing tank, according to the ratio of various nutritive elements in the water, adds nitrogen salt, microcosmic salt and nutrient salts, and regulates wastewater pH about 8.5;
B. the waste water after regulating enters in the biological fluidized bed that contains the macropore suspending carrier, carries out aeration, handles by anaerobic-aerobic coupled biological, realizes the waste water degraded;
C. discharge fluidized-bed through the water outlet of anaerobic-aerobic coupled processing, enter and carry out mud-water separation in the settling bowl;
D. through leaving standstill, upper strata water up to standard is discharged, lower floor's sedimentation mud small portion discharging, major part is back to and continues to participate in wastewater treatment process in the fluidized-bed.
Present embodiment is handled the simulated wastewater that contains phenol, mainly contains phenol, nitrogen, microcosmic salt and a small amount of glucose.The COD of wherein intaking
CrBe 4137.0mg/L, phenol content is 1464.2mg/L, and pH is 8.45.Water outlet COD
CrBe 278.3mg/L, pH is 7.63.The COD that this is routine
CrClearance is 93.3%, and activated sludge concentration is 7.7g/L, and sludge volume index is 55.2ml/g.
Embodiment 4: the continuously streamed activated sludge process
Fluid bed type: air lift type internal recycle two stage biological fluidized-bed; Useful volume: 67L
Solid support material: polyurethane; Carrier aperture: 2mm; Voidage: 90%; Minimum one dimension size: 15mm
Present embodiment mixes use with the carrier of two kinds of different sizes:
Carrier dimensions 1:15mm * 15mm * 15mm; The carrier dosage accounts for the volume ratio of reactor: 20%
Carrier dimensions 2:40mm * 40mm * 40mm; The carrier dosage accounts for the volume ratio of reactor: 20%
Hydraulic detention time: 28h
A. waste water at first enters equalizing tank, according to the ratio of various nutritive elements in the water, adds nitrogen salt, microcosmic salt and nutrient salts, and regulates wastewater pH about 7.5;
B. the waste water after regulating enters in the biological fluidized bed that contains the macropore suspending carrier, carries out aeration, handles by anaerobic-aerobic coupled biological, realizes the waste water degraded;
C. discharge fluidized-bed through the water outlet of anaerobic-aerobic coupled processing, enter and carry out mud-water separation in the settling bowl;
D. through leaving standstill, upper strata water up to standard is discharged, lower floor's sedimentation mud small portion discharging, major part is back to and continues to participate in wastewater treatment process in the fluidized-bed.
Present embodiment is handled the simulated wastewater that contains phenol, mainly contains phenol, glucose and nitrogen, microcosmic salt class.The COD of wherein intaking
CrBe 12810.9mg/L, phenol content is 3903.5mg/L.Water outlet COD
CrBe 1965.1mg/L.The COD that this is routine
CrClearance is 84.7%, and activated sludge concentration is 5.7g/L, and sludge volume index is 28.0ml/g.
Claims (7)
1, a kind of method for the treatment of phenol-contained waste water by anaerobic-aerobic coupled biological fluidizing bed is characterized in that, this method comprises the steps:
A. waste water at first enters equalizing tank, according to the ratio of various nutritive elements in the water, adds nitrogen salt, microcosmic salt and nutrient salts, and regulates wastewater pH between 7.0-8.5;
B. the waste water after regulating enters in the biological fluidized bed that contains the macropore suspending carrier, carries out aeration, handles by anaerobic-aerobic coupled biological, realizes the waste water degraded;
C. discharge fluidized-bed through the water outlet of anaerobic-aerobic coupled processing, enter and carry out mud-water separation in the settling bowl;
D. through leaving standstill, upper strata water up to standard is discharged, lower floor's sedimentation mud small portion discharging, major part is back to and continues to participate in wastewater treatment process in the fluidized-bed.
2, the method for a kind for the treatment of phenol-contained waste water by anaerobic-aerobic coupled biological fluidizing bed according to claim 1, it is characterized in that, described macropore suspending carrier equivalent diameter scope is 10-40mm, any unidimensional smallest dimension is not less than 8mm, range of aperture size is 0.5-2.0mm, and the volume porosity scope is 80%-95%.
3, the method for a kind for the treatment of phenol-contained waste water by anaerobic-aerobic coupled biological fluidizing bed according to claim 1 is characterized in that, the volume that described macropore suspending carrier adds accounts for the 1-40% of biological fluidized bed effective volume.
4, the method for a kind for the treatment of phenol-contained waste water by anaerobic-aerobic coupled biological fluidizing bed according to claim 1 is characterized in that, the volume that described macropore suspending carrier adds accounts for the 5-30% of biological fluidized bed effective volume.
5, the method for a kind for the treatment of phenol-contained waste water by anaerobic-aerobic coupled biological fluidizing bed according to claim 1, it is characterized in that the material that described macropore suspending carrier adopts is one or more in polyurethane, urethane, Mierocrystalline cellulose, polyethylene, polypropylene, the polystyrene.
6, the method for a kind for the treatment of phenol-contained waste water by anaerobic-aerobic coupled biological fluidizing bed according to claim 1 is characterized in that, described biological fluidized bed is an inner loop fluidized bed reactor.
7, the method for a kind for the treatment of phenol-contained waste water by anaerobic-aerobic coupled biological fluidizing bed according to claim 1 is characterized in that, described biological fluidized bed is the outer circulation biological fluidized bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100120719A CN100355675C (en) | 2006-05-31 | 2006-05-31 | Method for treating phenol-contained waste water by anaerobic-aerobic coupled biological fluidizing bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100120719A CN100355675C (en) | 2006-05-31 | 2006-05-31 | Method for treating phenol-contained waste water by anaerobic-aerobic coupled biological fluidizing bed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1850656A true CN1850656A (en) | 2006-10-25 |
| CN100355675C CN100355675C (en) | 2007-12-19 |
Family
ID=37132158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100120719A Expired - Fee Related CN100355675C (en) | 2006-05-31 | 2006-05-31 | Method for treating phenol-contained waste water by anaerobic-aerobic coupled biological fluidizing bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100355675C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101565233B (en) * | 2009-05-15 | 2011-12-28 | 浙江工业大学 | Method of treating organic waste water containing salt by using carrier fluidized bed |
| CN102689985A (en) * | 2011-02-18 | 2012-09-26 | 中国石油化工股份有限公司 | Sewage processing technology by anoxic-aerobic biological fluidized bed |
| CN108358378A (en) * | 2018-01-09 | 2018-08-03 | 同济大学 | A kind for the treatment of process suitable for high ammonia nitrogen dispersed wastewater |
| CN110902826A (en) * | 2019-12-02 | 2020-03-24 | 江苏艾特克环境工程设计研究院有限公司 | Low-emission N2O water treatment system and treatment method |
| CN115286181A (en) * | 2022-08-12 | 2022-11-04 | 中国石油化工股份有限公司 | Short-cut nitrification and denitrification biological fluidized bed sewage treatment device and process |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1258485C (en) * | 2003-12-23 | 2006-06-07 | 清华大学 | Process for treating waste water by aerobic-anaerobic microbic repeated coupling |
-
2006
- 2006-05-31 CN CNB2006100120719A patent/CN100355675C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101565233B (en) * | 2009-05-15 | 2011-12-28 | 浙江工业大学 | Method of treating organic waste water containing salt by using carrier fluidized bed |
| CN102689985A (en) * | 2011-02-18 | 2012-09-26 | 中国石油化工股份有限公司 | Sewage processing technology by anoxic-aerobic biological fluidized bed |
| CN108358378A (en) * | 2018-01-09 | 2018-08-03 | 同济大学 | A kind for the treatment of process suitable for high ammonia nitrogen dispersed wastewater |
| CN108358378B (en) * | 2018-01-09 | 2020-11-27 | 同济大学 | Treatment process suitable for high ammonia nitrogen dispersed domestic sewage |
| CN110902826A (en) * | 2019-12-02 | 2020-03-24 | 江苏艾特克环境工程设计研究院有限公司 | Low-emission N2O water treatment system and treatment method |
| CN110902826B (en) * | 2019-12-02 | 2022-07-05 | 江苏艾特克环境工程设计研究院有限公司 | Low-emission N2O water treatment system and treatment method |
| CN115286181A (en) * | 2022-08-12 | 2022-11-04 | 中国石油化工股份有限公司 | Short-cut nitrification and denitrification biological fluidized bed sewage treatment device and process |
| CN115286181B (en) * | 2022-08-12 | 2024-01-26 | 中国石油化工股份有限公司 | Short-cut nitrification and denitrification biological fluidized bed sewage treatment device and process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100355675C (en) | 2007-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101259983B (en) | Method and device for removing nitrogen and phosphorus in immobilized phycomycete coupling membrane separation process | |
| CN101037655A (en) | High-effective microorganism complex agent and method of using the same for treating city sewage | |
| EA024049B1 (en) | Sludge treatment method and apparatus and application of said method and apparatus for wastewater bio-treatment | |
| CN101381163B (en) | Biochemical degradation system coupling hydrolytic acidification-anaerobic and aerobic | |
| CN102285739A (en) | BCMB (Buffering Circulating MediaBiological Bed) treatment method for high-concentration toxic organic waste water | |
| CN105858899B (en) | A kind of sewage water advanced treatment apparatus based on immobilized algal-bacteria system | |
| CN106477829A (en) | The innoxious Waste Water Treatment of spoil and method of wastewater treatment | |
| CN110627316A (en) | Breeding wastewater treatment process | |
| CN103183447A (en) | Treatment method of piggery wastewater | |
| CN102531269A (en) | Pig farm wastewater treatment method | |
| CN110217949A (en) | A kind of process for treating high ammonia nitrogen waste water | |
| CN1164513C (en) | Method for treating acrylonitrile and acrylic waste water | |
| CN1850656A (en) | Method for treating phenol-contained waste water by anaerobic-aerobic coupled biological fluidizing bed | |
| CN101624253A (en) | High efficient complex enzyme sewage treatment process and high efficient complex enzyme sewage treatment device | |
| CN207031204U (en) | A kind of spiral biomembrane sewage-treating reactor | |
| CN105481099B (en) | Treatment method of coking wastewater after oil removal | |
| CN103172176A (en) | Technology for treating chemical wastewater by immobilized microorganism and zigzag packed bed and equipment thereof | |
| CN1693449A (en) | High efficiency nitrogen circulating bacteria artificial screening and application in aquatic state sepairing and water treatment | |
| JP2014100677A (en) | Anaerobic wastewater treatment method using carrier | |
| CN211338974U (en) | Device for restoring black and odorous water body through local microorganism activation | |
| Lin et al. | Recent advances in biofilm technologies for breeding wastewater treatment: Fundamentals, performance and impacts of antibiotics | |
| CN115572017B (en) | Method and system for internal circulation of aquaculture tail water | |
| CN115057523A (en) | SBR wastewater treatment device and treatment method thereof | |
| CN1317209C (en) | Almond-processing waste water treatment process using aerobic- anoxia-aerobic method | |
| CN1020714C (en) | Method and apparatus for disposing waste water by biological fluidized bed with sponge carrier |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071219 Termination date: 20150531 |
|
| EXPY | Termination of patent right or utility model |