CN102229460A - Method for inducing aerobic sludge to granulate by using sludge micropowder - Google Patents
Method for inducing aerobic sludge to granulate by using sludge micropowder Download PDFInfo
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- CN102229460A CN102229460A CN2011101410207A CN201110141020A CN102229460A CN 102229460 A CN102229460 A CN 102229460A CN 2011101410207 A CN2011101410207 A CN 2011101410207A CN 201110141020 A CN201110141020 A CN 201110141020A CN 102229460 A CN102229460 A CN 102229460A
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- 239000010802 sludge Substances 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000008187 granular material Substances 0.000 title abstract description 15
- 230000001939 inductive effect Effects 0.000 title abstract description 3
- 239000010865 sewage Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003595 mist Substances 0.000 claims description 18
- 238000005273 aeration Methods 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 229960004249 sodium acetate Drugs 0.000 claims description 3
- 235000017281 sodium acetate Nutrition 0.000 claims description 3
- 239000001632 sodium acetate Substances 0.000 claims description 3
- 235000003642 hunger Nutrition 0.000 claims description 2
- 230000037351 starvation Effects 0.000 claims description 2
- 101100258233 Caenorhabditis elegans sun-1 gene Proteins 0.000 claims 1
- 238000009833 condensation Methods 0.000 abstract description 9
- 230000005494 condensation Effects 0.000 abstract description 9
- 230000007246 mechanism Effects 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000000654 additive Substances 0.000 abstract description 2
- 230000000996 additive effect Effects 0.000 abstract description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 15
- 244000005700 microbiome Species 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- QGZKDVFQNNGYKY-OUBTZVSYSA-N Ammonia-15N Chemical compound [15NH3] QGZKDVFQNNGYKY-OUBTZVSYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- 241000233866 Fungi Species 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 238000011081 inoculation Methods 0.000 description 2
- 210000001161 mammalian embryo Anatomy 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008611 intercellular interaction Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
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- Activated Sludge Processes (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention provides a method for inducing aerobic sludge to granulate by using sludge micropowder. The method comprises the following steps of: preparing the sludge micropowder from the residual sludge in a sewage plant by utilizing a condensation nucleus mechanism; and throwing the sludge micropowder into an aerobic treatment tank or a reactor to induce to generate aerobic granular sludge. The method has the advantages that: 1) waste is changed into treasure, so secondary pollution of the sludge to the environment is eliminated and the sludge is utilized as a resource; 2) the sludge is a residual substance of active sludge and an additive for partial water treatment and has the characteristics similar to those of the active sludge, so the sewage treatment process is influenced a little; 3) the production cost of the sludge micropowder is low and the production process of the sludge micropowder is simple; and 4) in the aerobic granular sludge prepared by induction the ammonia nitrogen, the removal rate is basically maintained to be about 95 percent and the COD removal rate is about 90 percent; and compared with the common active sludge, the aerobic granular sludge has high settling property, wherein the settling speed is 20 to 24 m/h and the sludge volume index (SVI) can be reduced to below 40 mL/g.
Description
(1) technical field
The present invention relates to a kind of mud micro mist and induce Miniaturation method of aerobic sludge.
(2) background technology
The aerobic particle mud technology is a kind of novel wastewater processing technology, because it has good settling property; High sludge concentration; Can bear high organic loading, load impact and toxic substance etc., therefore more and more be subjected to people's attention in field of waste water treatment.The formation of aerobic particle mud is a complex process that comprises physics, chemistry and biological action, and this process can be regarded as under hydrodynamic condition, the poly-phenomenon of organism that microorganism forms from fixed action.Because operational condition, type of reactor, influent quality, culturing purposes difference, the aerobic particle mud that Chinese scholars proposes on experimental study basis separately forms mechanism and can not annotate all granule sludges and form situation.At present, granule sludge forms mechanism and mainly contains the outer polymer hypothesis of born of the same parents, self coagulation principle, thread fungus hypothesis and nucleus of condensation mechanism.
Nucleus of condensation mechanism is exactly that the formation of aerobic particle mud at first will have nucleus of condensation to come to provide the place for gathering and the growth of microorganism, these nucleus of condensation can be the bigger suspended particles of quality in the water into, can be the anaerobism or the aerobic particle mud of inoculation, also can be the microbial film that forms on the reactor wall.Even can be thread fungus bigger in seed sludge or the mixed solution.Inorganic granule wherein can have a spot of electric charge under the effect of hydraulic shear, when this electric charge is positive charge, can adsorb microorganisms such as a certain amount of bacterium; Organic granule wherein can the secretion extracellular polymeric under the hydraulic shear effect, improves the hydrophobicity of cell surface, reduces the cell surface Gibbs free energy, for cell-cell interaction and stick favourable condition is provided.Under reactor intermittent operation operating mode, control operational conditions such as the suitable sedimentation degree of depth, water outlet time, larger particles is stayed in the reactor, thereby the microorganism that makes the nucleus of condensation and stick on it has competent time and nutriment to grow, and further stick more microorganism, form the irregular mud granule of profile, i.e. embryo's granule sludge.Embryo's granule sludge forms the aerobic particle mud with regular profile and solid 3-D solid structure gradually under the effect of hydraulic shear, after particle reaches certain size because the restriction of oxygen transfer and matrix mass transfer, particle size stops to increase, and the aerobic particle mud that form this moment is sophisticated aerobic particle mud.
The present invention utilizes sewage treatment plant residual mud micro mist to induce granular sludge as the nucleus of condensation in the aerobic particle mud forming process in conjunction with the formation mechanism of nucleus of condensation mechanism.Also waste sludge is carried out recycling treatment, obtain certain economic benefits.
(3) summary of the invention
The technological method that the purpose of this invention is to provide a kind of low cost, inducing culture granule sludge easy to operate, high efficiency.
The technical solution used in the present invention is:
A kind of mud micro mist is induced Miniaturation method of aerobic sludge, and described method comprises:
(1) get the excess sludge of sewage work, drying is crushed to 100～800 orders and obtains the mud micro mist; Described excess sludge is meant the excess sludge that sludge thickener is got rid of.
(2) get active sludge in the sewage disposal plant aeration tank, drop in the reactor with 800～1000mg/L left and right sides input amount; The granulating of described aerobic sludge also can directly be carried out in the aeration tank of sewage work; Described active sludge comprises microorganism and organism that depends on and inorganics etc.
(3) after reactor elder generation sky exposed to the sun 2 days, step (1) mud micro mist is pressed 100mg/L left and right sides addition drop in the reactor;
(4) at 5～10kg/m
3Under the condition of high volumetric loading .d and biological hungry (refer to that carbon source exhausts in the water, bacterium enters the endogenous respiration stage), adopting with the sodium-acetate is the sewage of carbon source, and water inlet moves under normal condition continuously; 5～10 days, in reactor, obtain aerobic granular mud.
Preferably, reactor operational conditions setting time of repose is 1.5h in the described step (4), and aeration time is 2.5h, and the cycle of operation is 4h.
Beneficial effect of the present invention is mainly reflected in:
1) utilizes nucleus of condensation mechanism, adopt the excess sludge of Sewage Plant to make the mud micro mist, be fed in aerobic treatment pond or the reactor, induce the generation aerobic particle mud;
2) turn waste into wealth, eliminate mud, make the recycling sludge utilization second environmental pollution;
3) mud itself is exactly the residuals and the used additive of portion water processing of active sludge, and its characteristic and active sludge character are approaching, and is little to the influence of sewage treatment process;
4) production cost of mud micro mist is low, production technique is simple;
5) induce the aerobic particle mud of preparation to have a lot of technical advantages than common active sludge, substantially remain on about 95% as the granule sludge ammonia-N removal rate that adds micro mist formation by this experiment, the clearance of COD is about 90%, compared settling property preferably with ordinary activated sludge, settling velocity is 20～24m/h.
(4) description of drawings
Fig. 1 is embodiment 1 a reactor used structural representation;
Fig. 2 is the mud photo of inoculation;
Fig. 3 cultivates 5 days mud granule photo after adding micro mist.
(5) embodiment
The present invention is described further below in conjunction with specific embodiment, but protection scope of the present invention is not limited in this:
Embodiment 1:
Reactor usedly form by sludge reaction district 1 and gas-liquid-solid three-phase separator 2 (comprising the settling region) two parts.Place an aerating apparatus in the bottom, the experimental installation structural representation is seen Fig. 1.
Granulating is cultivated:
(1) get the excess sludge of urban wastewater treatment firm, drying is crushed to 500 orders and obtains the mud micro mist;
(2) get active sludge (mud form photo is referring to Fig. 2) in the urban wastewater treatment firm aeration tank, drop in the reactor with 900mg/L left and right sides input amount;
(3) after reactor elder generation sky exposed to the sun 2 days, step (1) mud micro mist is pressed 100mg/L left and right sides addition drop in the reactor;
(4) at 8kg/m
3.d under high volumetric loading about and the biological in advance starvation conditions, adopting and being configured to COD with sodium-acetate, ammonia chloride, potassium primary phosphate is 1500mg/L, NH
4-N concentration is that 50mg/L, TP concentration are the sewage of 12.5mg/L, water inlet operation continuously; The setting time of repose is 1.5h, and aeration time is 2.5h, and the cycle of operation is 4h, moves about 5 days, can begin to take shape mud granule (referring to Fig. 3), and steady running is after 10 days, the SVI＜40ml/g of granule sludge, and settling property is good.
As can be seen from Figures 2 and 3, add after the micro mist, the performance of active sludge has obtained very big improvement, and mud is granulating in the short period of time, and the mud micro mist that is promptly added can effectively be induced the aerobic sludge granulating.
The granule sludge ammonia-N removal rate that the present invention adds micro mist formation remains on about 95% substantially, the clearance of COD is about 90%, compared settling property preferably with ordinary activated sludge, settling velocity is 20～24m/h, and sludge volume index (SVI) drops to below the 40ml/g from the 120ml/g of seed sludge.
Claims (2)
1. a mud micro mist is induced Miniaturation method of aerobic sludge, and described method comprises:
(1) get the excess sludge of sewage work, drying is crushed to 100～800 orders and obtains the mud micro mist;
(2) get active sludge in the sewage disposal plant aeration tank, drop in the reactor with 800～1000mg/L input amount;
(3) after reactor elder generation sky exposed to the sun 1～2 day, step (1) mud micro mist is dropped in the reactor by 50～150mg/L addition;
(4) at 5～10kg/m
3.d under the high volumetric loading and biological starvation conditions, adopting with the sodium-acetate is the sewage of carbon source, and the water inlet operation obtained aerobic granular mud after 5～10 days in reactor continuously.
2. the method for claim 1, it is characterized in that step (4) reactor operational conditions is: time of repose is 1.5h, and aeration time is 2.5h, and the cycle of operation is 4h.
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| CN2011101410207A CN102229460B (en) | 2011-05-27 | 2011-05-27 | Method for inducing aerobic sludge to granulate by using sludge micropowder |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553288A (en) * | 2013-11-21 | 2014-02-05 | 武汉森泰环保工程有限公司 | Method for preparing water treatment biological activity accelerant from winery wastewater treatment sludge |
| CN103708688A (en) * | 2013-12-10 | 2014-04-09 | 浙江工业大学 | Method for promoting aerobic sludge granulation by using crystal micro-powder |
| CN103936245A (en) * | 2014-02-28 | 2014-07-23 | 浙江工业大学 | Sludge granulating treatment technology used for improving dehydration performance of sludge |
| CN105502641A (en) * | 2015-12-03 | 2016-04-20 | 高大元 | Method for inhibiting activated sludge bulking |
| CN105731636A (en) * | 2014-12-11 | 2016-07-06 | 中国矿业大学 | Method for rapidly cultivating aerobic granular sludge |
| CN105858871A (en) * | 2015-01-22 | 2016-08-17 | 中国矿业大学 | Process for rapid primary granulation of sludge |
| CN106145328A (en) * | 2016-08-02 | 2016-11-23 | 浙江工业大学 | A kind of method utilizing alum sludge to promote aerobic sludge granulation |
| CN106145327A (en) * | 2016-08-02 | 2016-11-23 | 浙江工业大学 | A kind of promote aerobic particle mud to be formed and stable compound feed intake and preparation method thereof |
| CN106167340A (en) * | 2016-08-22 | 2016-11-30 | 浙江工业大学 | A kind of AAO continuous-flow aerobic granular sludge denitrification dephosphorization technique and system |
| CN106219740A (en) * | 2016-08-11 | 2016-12-14 | 浙江工业大学 | A kind of alum sludge is used to reduce film blocking and the method for dephosphorization in MBR reactor |
| CN106809948A (en) * | 2016-12-14 | 2017-06-09 | 浙江工业大学 | A kind of method that utilization excess sludge feedback mechanism promotes aerobic sludge granulation |
| CN107043170A (en) * | 2017-04-18 | 2017-08-15 | 中国矿业大学 | One kind traps CO in aerobic water treatment procedure2Method |
| CN109231444A (en) * | 2018-09-27 | 2019-01-18 | 华南师范大学 | A kind of calcification anaerobic grain sludge secondary nucleation reuse method and system |
| CN110330099A (en) * | 2019-08-14 | 2019-10-15 | 重庆市生态环境科学研究院 | A kind of method for culturing aerobic granular sludge and culture apparatus |
| CN113845210A (en) * | 2021-10-09 | 2021-12-28 | 湖南三友环保科技有限公司 | Biological agent for sewage treatment and preparation method and application thereof |
| CN114716003A (en) * | 2022-03-29 | 2022-07-08 | 中国化学工程第十一建设有限公司 | Preparation method of sludge micro powder, sludge micro powder and device |
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| CN101759289A (en) * | 2010-01-15 | 2010-06-30 | 杨国靖 | Method for culturing aerobic granular sludge for treating biological nutrients in municipal sewage |
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| CN103553288A (en) * | 2013-11-21 | 2014-02-05 | 武汉森泰环保工程有限公司 | Method for preparing water treatment biological activity accelerant from winery wastewater treatment sludge |
| CN103708688A (en) * | 2013-12-10 | 2014-04-09 | 浙江工业大学 | Method for promoting aerobic sludge granulation by using crystal micro-powder |
| CN103708688B (en) * | 2013-12-10 | 2015-11-25 | 浙江工业大学 | A kind of crystal micro-powder promotes the method for aerobic sludge granulation |
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| CN103936245A (en) * | 2014-02-28 | 2014-07-23 | 浙江工业大学 | Sludge granulating treatment technology used for improving dehydration performance of sludge |
| CN105731636A (en) * | 2014-12-11 | 2016-07-06 | 中国矿业大学 | Method for rapidly cultivating aerobic granular sludge |
| CN105858871A (en) * | 2015-01-22 | 2016-08-17 | 中国矿业大学 | Process for rapid primary granulation of sludge |
| CN105502641B (en) * | 2015-12-03 | 2018-07-17 | 中矿（天津）岩矿检测有限公司 | A kind of method of inhibitory activity sludge bulking |
| CN105502641A (en) * | 2015-12-03 | 2016-04-20 | 高大元 | Method for inhibiting activated sludge bulking |
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| CN106809948A (en) * | 2016-12-14 | 2017-06-09 | 浙江工业大学 | A kind of method that utilization excess sludge feedback mechanism promotes aerobic sludge granulation |
| CN107043170A (en) * | 2017-04-18 | 2017-08-15 | 中国矿业大学 | One kind traps CO in aerobic water treatment procedure2Method |
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| CN109231444B (en) * | 2018-09-27 | 2021-10-01 | 华南师范大学 | Secondary nucleation recycling method and system for calcified anaerobic granular sludge |
| CN110330099A (en) * | 2019-08-14 | 2019-10-15 | 重庆市生态环境科学研究院 | A kind of method for culturing aerobic granular sludge and culture apparatus |
| CN113845210A (en) * | 2021-10-09 | 2021-12-28 | 湖南三友环保科技有限公司 | Biological agent for sewage treatment and preparation method and application thereof |
| CN114716003A (en) * | 2022-03-29 | 2022-07-08 | 中国化学工程第十一建设有限公司 | Preparation method of sludge micro powder, sludge micro powder and device |
| CN114716003B (en) * | 2022-03-29 | 2024-01-26 | 中国化学工程第十一建设有限公司 | Preparation method of sludge micropowder, sludge micropowder and device |
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