CN102336498B - Nitrogen-phosphorus wastewater treating method by sequencing batch reactor coupled photobioreactor - Google Patents
Nitrogen-phosphorus wastewater treating method by sequencing batch reactor coupled photobioreactor Download PDFInfo
- Publication number
- CN102336498B CN102336498B CN 201110176465 CN201110176465A CN102336498B CN 102336498 B CN102336498 B CN 102336498B CN 201110176465 CN201110176465 CN 201110176465 CN 201110176465 A CN201110176465 A CN 201110176465A CN 102336498 B CN102336498 B CN 102336498B
- Authority
- CN
- China
- Prior art keywords
- reactor
- nitrogen
- bioreactor
- sequencing batch
- hour
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012163 sequencing technique Methods 0.000 title claims abstract description 47
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000002351 wastewater Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 241000195493 Cryptophyta Species 0.000 claims abstract description 40
- 238000004062 sedimentation Methods 0.000 claims abstract description 26
- 239000012528 membrane Substances 0.000 claims abstract description 25
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 12
- 239000010802 sludge Substances 0.000 claims abstract description 10
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 10
- 235000015097 nutrients Nutrition 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 239000006228 supernatant Substances 0.000 claims abstract description 7
- 241000894006 Bacteria Species 0.000 claims abstract description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000002912 waste gas Substances 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 150000003839 salts Chemical class 0.000 claims abstract description 4
- 239000010865 sewage Substances 0.000 claims description 51
- 238000005273 aeration Methods 0.000 claims description 35
- 241000196324 Embryophyta Species 0.000 claims description 18
- 238000005189 flocculation Methods 0.000 claims description 17
- 230000016615 flocculation Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 14
- 238000005859 coupling reaction Methods 0.000 claims description 14
- 239000000618 nitrogen fertilizer Substances 0.000 claims description 14
- 241000195649 Chlorella <Chlorellales> Species 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 9
- 239000000047 product Substances 0.000 claims description 7
- 244000144972 livestock Species 0.000 claims description 6
- 230000000050 nutritive effect Effects 0.000 claims description 6
- 244000144977 poultry Species 0.000 claims description 6
- 230000005791 algae growth Effects 0.000 claims description 5
- 238000011017 operating method Methods 0.000 claims description 5
- 238000009395 breeding Methods 0.000 claims description 4
- 230000001488 breeding effect Effects 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 4
- 238000004659 sterilization and disinfection Methods 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims description 3
- 244000046052 Phaseolus vulgaris Species 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 3
- 235000015895 biscuits Nutrition 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 235000005911 diet Nutrition 0.000 claims description 3
- 230000037213 diet Effects 0.000 claims description 3
- 210000003608 fece Anatomy 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 235000016425 Arthrospira platensis Nutrition 0.000 claims description 2
- 240000002900 Arthrospira platensis Species 0.000 claims description 2
- 235000007122 Scenedesmus obliquus Nutrition 0.000 claims description 2
- 244000249201 Scenedesmus obliquus Species 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 208000014451 palmoplantar keratoderma and congenital alopecia 2 Diseases 0.000 claims description 2
- 231100000614 poison Toxicity 0.000 claims description 2
- 230000007096 poisonous effect Effects 0.000 claims description 2
- 229940082787 spirulina Drugs 0.000 claims description 2
- 230000001988 toxicity Effects 0.000 claims description 2
- 231100000419 toxicity Toxicity 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 5
- 239000011574 phosphorus Substances 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 239000012141 concentrate Substances 0.000 abstract 1
- 230000000249 desinfective effect Effects 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 230000003311 flocculating effect Effects 0.000 abstract 1
- 239000013049 sediment Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 238000004065 wastewater treatment Methods 0.000 abstract 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- 238000012851 eutrophication Methods 0.000 description 5
- 238000012258 culturing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 2
- 229920001661 Chitosan Polymers 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 1
- 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 1
- 241001465754 Metazoa Species 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention relates to the field of environmental wastewater treatment, specifically to a nitrogen-phosphorus wastewater treating method by a sequencing batch reactor coupled photobioreactor. The method provided by the invention is characterized in that it comprises the following steps of: removing impurities and sediments of high concentration nitrogen-phosphorus wastewater and then treating the wastewater by using active sludge in the sequencing batch reactor, decanting a supernatant from the sequencing batch reactor, adding the supernatant into a membrane bioreactor for further aerobic treatment, filtering by ultrafiltration membrane in the membrane bioreactor to remove micro-suspension and bacteria, adding a generated ultrafiltration supernatant into a photobioreactor, disinfecting by ozone and adding algae filament as well as a few necessary nutrient salt, filling with carbon dioxide waste gas to perform microalgae cultivation, discharging a algae liquid after a microalgae growth cycle and adding the algae liquid into a flocculating settling pool for sedimentation, standardly discharging or reusing a supernatant liquor, compressing the concentrate algae liquid at the bottom into a microalgae cake by a plate and frame filter press. The invention has advantages of wide range of treated nitrogen-phosphorus wastewater water quality variation and production of economical microalgae with the utilization of nitrogen and phosphorus nutrients in wastewater as more as possible.
Description
[technical field]
The present invention relates to the environment protection sewage process field, specifically a kind of method of sequencing batch reactor coupling light bioreactor for treatment nitrogen-phosphorus wastewater.
[background technology]
Body eutrophication refers to the too much caused water pollution phenomenons of plant nutrient substance content such as nitrogen, phosphorus.Body eutrophication has restricted lake drainage regional economy and social sustainable development, has become one of global serious ecological environment problem.High concentration N-P sewage such as livestock and poultry cultivation ight soil are the one of the main reasons of eutrophication with the discharging of flushing sewage, human feces sewage, nitrogen fertilizer plant's sewage, Gourmet Powder Factory's sewage, bean product source mill sewage, sewage plant sludge supernatant liquor and filtrate etc.Yet high concentration N-P sewage is source of pollution, also is a kind of resource that can develop.
Since conventional processing high concentration N-P sewage is nitrated/denitrification process need to add the expensive carbon sources such as methyl alcohol, glucose usually, in the situation of carbon source deficiency, chemical oxygen demand (COD) (COD) can be up to standard often, nitrogen phosphorus then is difficult to up to standard, still contain the nutritive substances such as more nitrogen, phosphorus in the water outlet, cause easily body eutrophication.In addition, SBR, Anammox technology commonly used are the effects by nitrifier, with ammonia nitrogen through nitrated nitrite nitrogen, the nitric nitrogen of being converted into, and then utilize denitrifying bacteria that nitric nitrogen is converted into nitrogen, reach the purpose of denitrogenation from waste water, yet this mode has directly caused the loss of nitrogenous fertilizer; And the means of dephosphorization are very limited especially, and phosphor-removing effect is not ideal.
In view of the high nutritive value of the little algae of economy, to the sorption of nitrogen phosphorus, in bioreactor, utilize nitrogen, the little algae of phosphorus nutrition composition culturing economic in the nitrogen-phosphorus wastewater, little algae slurry or microalgae powder and deep processed product thereof that the rear manufacturing nutritive value of gathering is high, both administer the eutrophication pollution problem of nitrogen-phosphorus wastewater, produced again economic little algae product of animal, human needs.Yet, the condition of the little algae of culturing economic is relatively harsher, and the situation of nitrogen-phosphorus wastewater is ever-changing, unprocessed and be not suitable for cultivating microalgae, need to carry out targetedly pre-treatment to the nitrogen-phosphorus wastewater of intending utilizing, could be used for cultivating microalgae after making the physical and chemical index of sewage meet the basic demand of both culturing microalgae.
Nitrogen-phosphorus wastewater is carried out pre-treatment should adopt sequencing batch reactor, its principle is that sewage enters reactor in batches, then reacts in order, precipitates, discharges upper clear supernate and idle process, finishes an operation cycle.This reactor integrates reconciles pond, aeration tank and second pond function, can carry out water quality and quantity adjusting, microbiological deterioration and solid-liquid separation, can carry out intermittently or continuous aerobic and anaerobic treatment waste water again, have that structure of reactor is simple, the technology processing system characteristics of compact layout, save occupation of land, capital construction and working cost is low, the biochemical reaction impellent greatly, the anti impulsion load ability by force, effectively prevents the advantages such as sludge bulking, sludge settling property is good, operation is flexible.In addition, sequencing batch reactor can adopt respectively the restriction aeration, partly limit aeration, the abundant various combination operation scheme of aeration, control the suitable time scale of every part, can access the Nitrogen/Phosphorus Removal of manual control at time series realization aerobic/anaerobic or anaerobic/anoxic/aerobic being combined.
[summary of the invention]
The objective of the invention is to design a kind of can be for the nitrogen-phosphorus wastewater of different quality, different envrionment conditionss, with the method for sequencing batch reactor coupling light bioreactor for treatment nitrogen-phosphorus wastewater.
To achieve these goals, the present invention designs a kind of method of sequencing batch reactor coupling light bioreactor for treatment nitrogen-phosphorus wastewater, it is characterized in that may further comprise the steps:
A, high concentration N-P sewage enter settling pit after grid is removed larger floating matter and mechanical impurity, enter behind the removal silt and use Sewage Treatment for Activated Sludge in the sequencing batch reactor;
B, the clear liquid that hydrophone drains strained in sequencing batch reactor enter membrane bioreactor and do further aerobic treatment, and remove various fine suspended substances and bacterium behind the ultrafiltration membrance filter in membrane bioreactor, created basic condition for supporting the algae denitrogenation dephosphorizing, the mud discharging that sequencing batch reactor and membrane bioreactor produce is to mud storage pond;
The ultrafiltration clear liquid that c, membrane bioreactor produce joins in the bioreactor, passing into ozone carries out disinfection, then in bioreactor, add algae kind and a small amount of necessary nutritive salt, and pass into CO 2 waste gas, carry out the little algae of closed smooth autotrophy high-density breeding, simultaneously with the nitrogen phosphorus in little algae absorption nutrient solution;
D, through micro algae growth week after date from bioreactor, discharges algae liquid and enters into flocculation sedimentation tank, in flocculation sedimentation tank, add flocculation agent flocculation microalgae and sedimentation after, water reuse in upper clear supernate qualified discharge or the conduct;
E, the concentrated algae liquid that flows out from the flocculation sedimentation tank bottom are compressed into little algal biscuit with plate-and-frame filter press, can be used as immediately the fodder additives of livestock and poultry diet, or spray-dried tower are dried to microalgae powder with long preservation period.
The treatment process of the total nitrogen of described nitrogen-phosphorus wastewater when 50～280mg/L is: the time of aeration is 1 hour simultaneously in the water inlet of control sequencing batch reactor, the time that stops to continue behind the water aeration is 1～3 hour, sedimentation time is 1 hour, water discharge time is 1 hour, and order batch operation cycle or the reactor waterpower residence time are 4～6 hours.
Treatment process when the total nitrogen of described nitrogen-phosphorus wastewater is higher than 280mg/L adopts sequencing batch reactor segmental influent, stage aeration to realize the operating method of part denitrogenation, the concrete operations mode is: the flooding time of control sequencing batch reactor is 1 hour, stop that aeration time is 1 hour behind the water, stopping behind the aeration again, flooding time is 1 hour, stop into the water afterreaction time be 1～2 hour, aeration time is 1 hour again, sedimentation time is 1 hour, water discharge time is 1 hour, and order batch operation cycle or the reactor waterpower residence time are 7～8 hours.
The treatment process employing sequencing batch reactor of described nitrogen-phosphorus wastewater when poisonous to little algae removed first the toxicity in the nitrogen phosphorus organic sewage, the concrete operations mode is: the flooding time of control sequencing batch reactor is 1 hour, stop that the anaerobism time of repose is 2 hours behind the water, the time of then carrying out aeration is 5～7 hours, sedimentation time is 1 hour, water discharge time is 1 hour, and order batch operation cycle or the reactor waterpower residence time are 10～12 hours.
The treatment process of described nitrogen-phosphorus wastewater when envrionment conditions is unfavorable for micro algae growth must be carried out first the part denitrogenation with sequencing batch reactor, sequencing batch reactor should adopt the operating method of segmental influent, stage aeration, the concrete operations mode is: flooding time is 1 hour, stop that aeration time is 1～3 hour behind the water, stopping behind the aeration again, flooding time is 1 hour, stopping behind the water again, aeration time is 1～3 hour, sedimentation time is 1 hour, water discharge time is 1 hour, and order batch operation cycle or the reactor waterpower residence time are 6～10 hours.
Described high concentration N-P sewage adopts livestock and poultry cultivation ight soil and flushing sewage, human feces sewage, nitrogen fertilizer plant's sewage, Gourmet Powder Factory's sewage, bean product source mill sewage, sewage plant sludge supernatant liquor and filtrate.
Described sequencing batch reactor is traditional sbr reactor device, ICEAS reactor, CASS reactor, CAST reactor, two-stage SBR reactor, DAT-IAT reactor, UNITANK reactor, MSBR reactor, SBBR reactor, ASBR reactor, UniFed reactor, IDEA reactor, LUCUS reactor, AICS reactor, CWSBR reactor.
Described membrane bioreactor is polymeric membrane bio-reactor or ceramic membrane bioreactor.
Described bioreactor is duct type bioreactor or flat bioreactor or column airlift photobioreactor or vertical Pig or closed shallow annular pond.
Described little algae is adopted chlorella or scenedesmus obliquus or spirulina.
The present invention compared with prior art, its advantage is: the advantage of giving full play to these two reactors of sequencing batch reactor and bioreactor, remedy defective separately, can reach and process the dual purpose that nitrogen-phosphorus wastewater change of water quality scope is utilized the little algae product of nitrogen phosphorus nutrient production economy in the sewage extensively, as far as possible.
[description of drawings]
Fig. 1 is schema of the present invention;
Fig. 2 is the change of water quality table of the sewage purification process in nitrogen fertilizer plant of the present invention March～November;
Fig. 3 is the change of water quality table of the sewage purification process in nitrogen fertilizer plant of the present invention December～February next year.
[embodiment]
Below in conjunction with accompanying drawing, the present invention will be further described, and production technology of the present invention is to implement easily to this professional people.
China's synthetic ammonia chemical fertilizer industry recent two decades is developed rapidly, annual production row No. 1 in the world.Nitrogenous fertilizer enterprises has also been discharged and has been contained in a large number ammonia-nitrogen sewage when the industrial or agricultural desired product is satisfied in production, becomes the sewage discharge rich and influential family.For administer and utilize in nitrogen fertilizer plant's technique can't recycle concentration be lower than the ammonia-nitrogen sewage of 500mg/L, near a nitrogen fertilizer plant, build waste disposal plant, both culturing microalgae and processing units, adopt the method for sequencing batch reactor coupling light bioreactor for treatment nitrogen-phosphorus wastewater, sewage purification Cheng Zhongshui and reuse that nitrogen fertilizer plant is produced are water of productive use, produce simultaneously the chlorella powder of high-quality, referring to Fig. 1.
This nitrogen fertilizer plant produces about 1000m every day
3High concentration N-P sewage, these sewage enter 100m remove the mechanical impuritys such as larger floating matter through grid maker after
3Settling pit, enter 600m after removing silt
3The sbr reactor device in use Sewage Treatment for Activated Sludge, the clear liquid that hydrophone drains strained in the sbr reactor device enters that day to process a water yield be 1000m
3Plate membrane bioreactor do further aerobic treatment, when sewage saw through the aperture and is the flat sheet membrane of 0.1 μ m, bacterium and most fine suspended substance all were retained down, for next step foster algae denitrogenation dephosphorizing has been created basic condition.The mud discharging that sbr reactor device and plate membrane bioreactor produce is to 600m
3Six lattice mud storages pond in, mud is transported to the refuse landfill landfill outside after gravity settling and natural mummification.The ultrafiltration clear liquid that plate membrane bioreactor produces is used the light bioreactor for treatment by one-period circulation in 6 days, namely adopt 60 100m
3Bioreactor, every day the ultrafiltration clear liquid is joined wherein 10 successively, pass into ozone and carry out disinfection, kill harmful organisms wherein.This bioreactor for the inventor applied for patent of invention the aeration type bioreactor (aeration type bioreactor and application method thereof. Chinese invention patent, application number: 200910047898.7).Then, access chlorella algae kind is pressed 3.3g/m in the aeration type bioreactor
3Concentration add ironic citrate, press 0.15g/m
3Concentration add VITMAIN B1, and pass into the CO 2 waste gas that Heat Exchanger Networks in Transform Workshop of Ammonia Plant produces, carry out closed smooth autotrophy high-density breeding chlorella, absorb nitrogen phosphorus in the nutrient solution with chlorella simultaneously.Foster algae is discharged algae liquid and enters into 250m from bioreactor after 6 days
3Flocculation sedimentation tank in, in the pond, add flocculate with chitosan chlorella and sedimentation after, upper clear supernate is collected 600m
3Middle pond in, recycle as producing reuse water.After the concentrated algae liquid that flows out from flocculation sedimentation tank bottom pumps up, enter spray-drying tower and be dried to the chlorella algae powder.
Different by season, the annual nitrogen fertilizer plant's sewage of processing is divided into two stages, to sequencing batch reactor and the bioreactor in the accompanying drawing 1 described flow process, adopt respectively following coupling process to process nitrogen-phosphorus wastewater, the change of water quality of sewage purification process is referring to Fig. 2 and Fig. 3.
(1) March～November
Nitrogen fertilizer plant is during March～November, and the change of water quality of sewage purification process is seen Fig. 2,250 tons of chlorella algae powder of symbiosis output.Temperature is higher during this period, is adapted at cultivating in the bioreactor chlorella, and the function of sbr reactor device is the COD in the reduction sewage, and Ammonia Nitrification is become nitrate.In the concrete operations be control sbr reactor device water inlet simultaneously the time of aeration be 1 hour, the time that stops to continue aeration behind water is 2 hours, sedimentation time is 1 hour, water discharge time is 1 hour, an order batch operation cycle is 5 hours.
(2) December～February next year
Nitrogen fertilizer plant is during December～February next year, and the change of water quality of sewage purification process is seen Fig. 3,50 tons of chlorella algae powder of symbiosis output.Temperature is lower during this period, and the ability of cultivation chlorella denitrogenation dephosphorizing is restricted in bioreactor, must bring into play the denitrogenation dephosphorizing function of sbr reactor device, removes first a part of nitrogen phosphorus in the sewage.This moment, the sbr reactor device should adopt the operating method of segmental influent, stage aeration, the concrete operations mode is: flooding time is 1 hour, stop that aeration time is 2 hours behind the water, stopping behind the aeration again, flooding time is 1 hour, stopping behind the water again, aeration time is 2 hours, sedimentation time is 1 hour, and water discharge time is 1 hour, and an order batch operation cycle is 8 hours.
Claims (9)
1. the method for a sequencing batch reactor coupling light bioreactor for treatment nitrogen-phosphorus wastewater is characterized in that may further comprise the steps:
A. high concentration N-P sewage enters settling pit after grid is removed larger floating matter and mechanical impurity, enters behind the removal silt and uses Sewage Treatment for Activated Sludge in the sequencing batch reactor;
B. the clear liquid that hydrophone drains strained in sequencing batch reactor enters membrane bioreactor and does further aerobic treatment, and remove various fine suspended substances and bacterium behind the ultrafiltration membrance filter in membrane bioreactor, created basic condition for supporting the algae denitrogenation dephosphorizing, the mud discharging that sequencing batch reactor and membrane bioreactor produce is to mud storage pond;
C. the ultrafiltration clear liquid of membrane bioreactor generation joins in the bioreactor, passing into ozone carries out disinfection, then in bioreactor, add algae kind and a small amount of necessary nutritive salt, and pass into CO 2 waste gas, carry out the little algae of closed smooth autotrophy high-density breeding, simultaneously with the nitrogen phosphorus in little algae absorption nutrient solution;
D. through micro algae growth week after date from bioreactor, discharges algae liquid and enters into flocculation sedimentation tank, in flocculation sedimentation tank, add flocculation agent flocculation microalgae and sedimentation after, water reuse in upper clear supernate qualified discharge or the conduct;
E. the concentrated algae liquid that flows out from flocculation sedimentation tank bottom is compressed into little algal biscuit with plate-and-frame filter press, can be used as immediately the fodder additives of livestock and poultry diet, or spray-dried tower is dried to microalgae powder with long preservation period,
The treatment process of the total nitrogen of described nitrogen-phosphorus wastewater when 50～280 mg/L is: the time of aeration is 1 hour simultaneously in the water inlet of control sequencing batch reactor, the time that stops to continue behind the water aeration is 1～3 hour, sedimentation time is 1 hour, water discharge time is 1 hour, and order batch operation cycle or the reactor waterpower residence time are 4～6 hours.
2. the method for a sequencing batch reactor coupling light bioreactor for treatment nitrogen-phosphorus wastewater is characterized in that may further comprise the steps:
A. high concentration N-P sewage enters settling pit after grid is removed larger floating matter and mechanical impurity, enters behind the removal silt and uses Sewage Treatment for Activated Sludge in the sequencing batch reactor;
B. the clear liquid that hydrophone drains strained in sequencing batch reactor enters membrane bioreactor and does further aerobic treatment, and remove various fine suspended substances and bacterium behind the ultrafiltration membrance filter in membrane bioreactor, created basic condition for supporting the algae denitrogenation dephosphorizing, the mud discharging that sequencing batch reactor and membrane bioreactor produce is to mud storage pond;
C. the ultrafiltration clear liquid of membrane bioreactor generation joins in the bioreactor, passing into ozone carries out disinfection, then in bioreactor, add algae kind and a small amount of necessary nutritive salt, and pass into CO 2 waste gas, carry out the little algae of closed smooth autotrophy high-density breeding, simultaneously with the nitrogen phosphorus in little algae absorption nutrient solution;
D. through micro algae growth week after date from bioreactor, discharges algae liquid and enters into flocculation sedimentation tank, in flocculation sedimentation tank, add flocculation agent flocculation microalgae and sedimentation after, water reuse in upper clear supernate qualified discharge or the conduct;
E. the concentrated algae liquid that flows out from flocculation sedimentation tank bottom is compressed into little algal biscuit with plate-and-frame filter press, can be used as immediately the fodder additives of livestock and poultry diet, or spray-dried tower is dried to microalgae powder with long preservation period,
Treatment process when the total nitrogen of described nitrogen-phosphorus wastewater is higher than 280 mg/L adopts sequencing batch reactor segmental influent, stage aeration to realize the operating method of part denitrogenation, the concrete operations mode is: the flooding time of control sequencing batch reactor is 1 hour, stop that aeration time is 1 hour behind the water, stopping behind the aeration again, flooding time is 1 hour, stop into the water afterreaction time be 1～2 hour, aeration time is 1 hour again, sedimentation time is 1 hour, water discharge time is 1 hour, and order batch operation cycle or the reactor waterpower residence time are 7～8 hours.
3. the method for a kind of sequencing batch reactor coupling light bioreactor for treatment nitrogen-phosphorus wastewater as claimed in claim 1 or 2, it is characterized in that the treatment process of described nitrogen-phosphorus wastewater when poisonous to little algae adopts sequencing batch reactor to remove first toxicity in the nitrogen phosphorus organic sewage, the concrete operations mode is: the flooding time of control sequencing batch reactor is 1 hour, stop that the anaerobism time of repose is 2 hours behind the water, the time of then carrying out aeration is 5～7 hours, sedimentation time is 1 hour, water discharge time is 1 hour, and order batch operation cycle or the reactor waterpower residence time are 10～12 hours.
4. the method for a kind of sequencing batch reactor coupling light bioreactor for treatment nitrogen-phosphorus wastewater as claimed in claim 1 or 2, it is characterized in that the treatment process of described nitrogen-phosphorus wastewater when envrionment conditions is unfavorable for micro algae growth must carry out first the part denitrogenation with sequencing batch reactor, sequencing batch reactor should adopt segmental influent, the operating method of stage aeration, the concrete operations mode is: flooding time is 1 hour, stop that aeration time is 1～3 hour behind the water, stopping behind the aeration again, flooding time is 1 hour, stopping behind the water again, aeration time is 1～3 hour, sedimentation time is 1 hour, water discharge time is 1 hour, and order batch operation cycle or the reactor waterpower residence time are 6～10 hours.
5. the method for a kind of sequencing batch reactor coupling light bioreactor for treatment nitrogen-phosphorus wastewater as claimed in claim 1 or 2 is characterized in that described high concentration N-P sewage adopts livestock and poultry cultivation ight soil and flushing sewage, human feces sewage, nitrogen fertilizer plant's sewage, Gourmet Powder Factory's sewage, bean product source mill sewage, sewage plant sludge supernatant liquor and filtrate.
6. the method for a kind of sequencing batch reactor coupling light bioreactor for treatment nitrogen-phosphorus wastewater as claimed in claim 1 or 2 is characterized in that described sequencing batch reactor is traditional sbr reactor device, ICEAS reactor, CASS reactor, CAST reactor, two-stage SBR reactor, DAT-IAT reactor, UNITANK reactor, MSBR reactor, SBBR reactor, ASBR reactor, UniFed reactor, IDEA reactor, LUCUS reactor, AICS reactor, CWSBR reactor.
7. the method for a kind of sequencing batch reactor coupling light bioreactor for treatment nitrogen-phosphorus wastewater as claimed in claim 1 or 2 is characterized in that described membrane bioreactor is polymeric membrane bio-reactor or ceramic membrane bioreactor.
8. the method for a kind of sequencing batch reactor coupling light bioreactor for treatment nitrogen-phosphorus wastewater as claimed in claim 1 or 2 is characterized in that described bioreactor is duct type bioreactor or flat bioreactor or column airlift photobioreactor or vertical Pig or closed shallow annular pond.
9. the method for a kind of sequencing batch reactor coupling light bioreactor for treatment nitrogen-phosphorus wastewater as claimed in claim 1 or 2 is characterized in that described little algae employing chlorella or scenedesmus obliquus or spirulina.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110176465 CN102336498B (en) | 2011-06-28 | 2011-06-28 | Nitrogen-phosphorus wastewater treating method by sequencing batch reactor coupled photobioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110176465 CN102336498B (en) | 2011-06-28 | 2011-06-28 | Nitrogen-phosphorus wastewater treating method by sequencing batch reactor coupled photobioreactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102336498A CN102336498A (en) | 2012-02-01 |
| CN102336498B true CN102336498B (en) | 2013-03-13 |
Family
ID=45512505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110176465 Active CN102336498B (en) | 2011-06-28 | 2011-06-28 | Nitrogen-phosphorus wastewater treating method by sequencing batch reactor coupled photobioreactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102336498B (en) |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102732425B (en) * | 2012-06-06 | 2014-08-13 | 中南民族大学 | Method for producing microalgae through utilizing livestock and poultry excrement primary wastewater |
| CN102775021B (en) * | 2012-07-25 | 2014-02-12 | 华南理工大学 | Method of advanced treatment of high concentration phosphorus sewage and recycling of phosphorus |
| CN103663839B (en) * | 2012-08-30 | 2015-09-16 | 中国海洋石油总公司 | A kind of disposal and utilization method of coal gasification waste water |
| CN103771656B (en) * | 2012-10-26 | 2015-11-18 | 中国石油化工股份有限公司 | A kind of process for reclaiming of refinery water |
| CN103304093B (en) * | 2013-05-22 | 2015-01-07 | 北京工业大学 | Device and method for advanced denitrification and phosphorous removal of municipal wastewater |
| CN103305405A (en) * | 2013-07-09 | 2013-09-18 | 清华大学 | Method and special device for harvesting microalgae on large scale |
| CN103435228B (en) * | 2013-08-28 | 2015-07-08 | 广西大学 | Nitrogen and phosphorus removal advanced treatment method for wastewater |
| CN103787500B (en) * | 2014-01-20 | 2015-09-09 | 中国矿业大学 | A kind of sequence batch (driving by double-energy denitrification dephosphorization denitrification technique |
| CN104129886B (en) * | 2014-07-09 | 2016-02-24 | 清华大学 | A kind of membrane biological reactor process for VITAMIN pharmacy wastewater treatment |
| CN104212720A (en) * | 2014-09-04 | 2014-12-17 | 山东大学 | Method for producing microalgae biomass by using monosodium glutamate ion-exchanged mother liquid |
| CN105621783B (en) * | 2014-10-30 | 2019-04-23 | 中国科学院上海高等研究院 | Utilize the method for nitrogen phosphorus in batch-type microalgae reactor removal sewage |
| CN104386887B (en) * | 2014-12-15 | 2016-04-27 | 安徽师范大学 | A kind of bean curd factory effluent minitype direct exhaust type biological treatment and equipment |
| CN105985910A (en) * | 2015-03-05 | 2016-10-05 | 华东理工大学 | Novel method and process for carbon supplement during microalgae culture |
| CN105110582B (en) * | 2015-10-14 | 2017-06-20 | 无锡百灵传感技术有限公司 | A kind of sewage disposal system based on biofilm reactor and bioreactor |
| CN105565590A (en) * | 2015-12-14 | 2016-05-11 | 潘敏 | Advanced treatment system of high-concentration methanol wastewater by DAT-IAT (demand aeration tank-intermittent aeration tank) technique |
| ITUA20162497A1 (en) * | 2016-03-23 | 2017-09-23 | Maurizio Giannotti | TECHNOLOGY FOR THE INTENSIVE PRODUCTION OF ALGAE FOR BIOFUELS AND THE CONTEXTUAL PURIFICATION OF LIQUAMI |
| CN106219890A (en) * | 2016-08-31 | 2016-12-14 | 柳州市润广科技有限公司 | A kind of technique processing food processing wastewater |
| CN107824743B (en) * | 2017-10-11 | 2019-06-11 | 武汉纺织大学 | A kind of waterglass cast used sand in situ regeneration method and device |
| CN108033564A (en) * | 2017-11-27 | 2018-05-15 | 天津大学 | A kind of optimization method using microdisk electrode purification tofu wastewater |
| CN108249574A (en) * | 2017-12-13 | 2018-07-06 | 华南理工大学 | It is a kind of to handle pig farm breeding wastewater using microalgae and produce the device and its technique of algae powder |
| CN110156242B (en) * | 2018-01-18 | 2020-11-06 | 浙江省农业科学院 | Method for efficiently treating aquaculture sewage through cooperation of bacteria and algae |
| CN108439591B (en) * | 2018-03-14 | 2021-09-14 | 中国市政工程中南设计研究总院有限公司 | Separated type solidified algae bacterium sewage treatment device and method |
| CN108579399B (en) * | 2018-04-24 | 2020-06-19 | 西安交通大学 | Autotroph recovery and supplement device and method for wetland air purification device |
| CN111072215B (en) * | 2018-10-18 | 2021-11-12 | 中国石油化工股份有限公司 | Terephthalic acid wastewater treatment and resource utilization method |
| CN110697986B (en) * | 2019-10-25 | 2021-10-15 | 北京城市排水集团有限责任公司 | Bacteria-algae coupling sewage treatment device based on energy recycling and use method thereof |
| CN111808738A (en) * | 2020-06-05 | 2020-10-23 | 哈尔滨工业大学(深圳)(哈尔滨工业大学深圳科技创新研究院) | Microalgae culture and algae cake harvesting integrated equipment and method |
| CN112777746B (en) * | 2020-12-30 | 2022-09-20 | 南京万德斯环保科技股份有限公司 | Microalgae sludge green sewage treatment system |
| CN113620516B (en) * | 2021-08-03 | 2023-07-04 | 生态环境部南京环境科学研究所 | Purifying farmland water-returning treatment device |
| CN113830970A (en) * | 2021-09-26 | 2021-12-24 | 长沙工研院环保有限公司 | Biological reaction manure treatment method for ecological toilet |
| CN114804328B (en) * | 2022-05-24 | 2023-06-09 | 中国科学院广州能源研究所 | Method for assimilating resource-based high ammonia nitrogen wastewater by coupling partial full-process nitrification with microalgae |
| CN115231770B (en) * | 2022-07-06 | 2023-10-24 | 中国矿业大学(北京) | System and method for treating coal chemical wastewater by coupling ceramic membrane bioreactor with anaerobic ammonia oxidation |
| CN115074221A (en) * | 2022-07-28 | 2022-09-20 | 珠海元育生物科技有限公司 | Integrated microalgae heterotrophic fermentation and dehydration system and method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7258790B2 (en) * | 2003-09-19 | 2007-08-21 | Clemson University | Controlled eutrophication system and process |
| CN101723538B (en) * | 2008-10-24 | 2012-01-25 | 北京华明广远环境科技有限公司 | Process for treating landfill leachate |
| CN101549932B (en) * | 2009-05-14 | 2011-03-30 | 蔡志武 | Integrated production method of organic sewage/waste residue treatment, microalgae culturing and oil refining |
-
2011
- 2011-06-28 CN CN 201110176465 patent/CN102336498B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102336498A (en) | 2012-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102336498B (en) | Nitrogen-phosphorus wastewater treating method by sequencing batch reactor coupled photobioreactor | |
| CN106219871B (en) | Livestock and poultry breeding wastewater treatment method | |
| CN102161550B (en) | Method for producing feed additive from livestock and poultry breeding wastewater and purifying breeding wastewater to reclaimed water | |
| CN102329055A (en) | Aquaculture sewage treatment method | |
| CN105417778B (en) | A kind of method of quick treatment scale cattle farm waste waste water | |
| CN106186339B (en) | Sewage and wastewater treatment method taking granular bacteria-algae system as core | |
| CN106396112A (en) | Composite system used for purifying high ammonia nitrogen pig breeding biogas slurry via algae-bacterium symbiosis/ecological floating bed combined technology | |
| CN107043197A (en) | A kind of method that blue-green algae joint CANON handles ammonia nitrogen waste water | |
| CN103193366A (en) | Integrated treatment method of corn alcohol wastewater | |
| CN101831392A (en) | Autotrophic and allotrophic symbiosis ammonia oxidation bacterial agent as well as culture method and application thereof | |
| Park et al. | Growth of microalgae in diluted process water of the animal wastewater treatment plant | |
| CN106430820A (en) | Biological treatment device and process for high ammonia-nitrogen pig-raising biogas slurry | |
| CN104961289A (en) | Micro-nano aeration high-efficiency biotreatment technical system for livestock and poultry breeding wastewater | |
| CN106915867B (en) | Culture wastewater biochemical treatment system and preparation method and application of treatment by-product thereof | |
| CN109942091B (en) | Bacterial-algae attached biological fiber bed, preparation method thereof and method for strengthening treatment of pig wastewater for nitrogen and phosphorus removal | |
| CN101701197B (en) | Novel microorganism flora mixture and mixed nutrient medium thereof | |
| CN109081447B (en) | Method for removing nitrogen and phosphorus in culture wastewater by combining chlorella, acinetobacter and pseudomonas | |
| CN202658051U (en) | Aquaculture wastewater biochemical treatment system | |
| Mahesh et al. | Advances in biotechnological tools for bioremediation of wastewater using bacterial–algal symbiotic system | |
| CN108164086B (en) | Breeding wastewater recycling system and application thereof in recycling breeding wastewater | |
| CN106865750A (en) | A kind of activated sludge culture and acclimation method for difficult for biological degradation organic wastewater biological treatment | |
| CN219752089U (en) | Resource continuous treatment system for purifying biogas slurry based on energy chlorella | |
| CN210620525U (en) | Water-fertilizer co-production device for breeding manure | |
| CN105060648A (en) | Industrial circulating water fish-culture denitrification zero-emission system | |
| Liu et al. | Treatment effects of pond aquaculture wastewater using a Field-scale Combined Ecological Treatment System and the associated microbial characteristics |
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 | ||
| ASS | Succession or assignment of patent right |
Owner name: DALIAN DAKAI SEWAGE TREAT CO., LTD. Free format text: FORMER OWNER: CAI ZHIWU Effective date: 20140430 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201102 MINHANG, SHANGHAI TO: 116600 DALIAN, LIAONING PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140430 Address after: 116600, room 2, building 11, 6-1B West Road, Dalian economic and Technological Development Zone, Liaoning, the Yellow Sea Patentee after: Dalian Dakai Sewage Treatment Co.,Ltd. Address before: 201102, room 105, No. 420, Lane 402, ancient beauty West Road, Shanghai, Minhang District Patentee before: Cai Zhiwu |