CN103508555B - Reactor for realizing suspension of biofilm carriers under low aeration quantity - Google Patents
Reactor for realizing suspension of biofilm carriers under low aeration quantity Download PDFInfo
- Publication number
- CN103508555B CN103508555B CN201310463077.8A CN201310463077A CN103508555B CN 103508555 B CN103508555 B CN 103508555B CN 201310463077 A CN201310463077 A CN 201310463077A CN 103508555 B CN103508555 B CN 103508555B
- Authority
- CN
- China
- Prior art keywords
- biofilm
- reactor
- hollow
- bar hole
- suspension
- 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
Classifications
-
- 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
Abstract
The invention relates to a reactor for realizing suspension of biofilm carriers under low aeration quantity. The reactor comprises a vertical cylindrical shell, wherein a vertical hollow cylinder is coaxially arranged in the shell, and a stirring paddle is mounted in the hollow cylinder; a plurality of through holes are formed on the wall of the hollow cylinder; the bottom end of the hollow cylinder is fixedly connected with the bottom end of the shell; and the biofilm carriers are filled in a circular space between the hollow cylinder and the shell. According to the unique structure design of the reactor and the control to the rotating speed of the stirring paddle, the biofilm carriers in the reactor can be ensured always in the suspension state under the low aeration quantity, and excellent fluidization character is maintained, so that the partial nitrification advantages are stably kept, the advantages are created for simultaneous nitrification and denitrification, and the aeration energy consumption and the carbon source material consumption in the denitrification phase are reduced.
Description
Technical field
The present invention relates to a kind of biomembrance process reactor, particularly relate to a kind of reactor that can realize suspension of biofilm under low aeration rate.
Background technology
Refining catalytic agent production waste water water quality is complicated, and suspension, ammonia nitrogen concentration are high and containing a large amount of inorganic salts and chlorion etc., B/C value is low, more difficult realization biological treatment.Traditional biological treatment is current most widely used denitride technology, but traditional biologic treating technique technique exists some problem following: long flow path and floor space is large, and capital expenditure costly; System impact resistance is more weak, and high-concentration ammonia nitrogenous wastewater can suppress nitrobacteria to grow; The acidity produced in nitrifying process needs to add alkali neutralization, not only increases disposal cost, also likely causes secondary pollution; Nitrobacteria poor growth, once there is sludge loss in suspended sludge system, is difficult to resume production at short notice; Biofilm carrier (biologic packing material) is more difficult under low aeration rate realizes fluidisation, and easily pile up, reaction effect is poor.
Summary of the invention
For overcoming the above-mentioned defect of prior art, the reactor of suspension of biofilm is realized under the object of the present invention is to provide a kind of low aeration rate, biofilm carrier abundant fluidisation and being evenly distributed in the reaction compartment of reactor can be ensured, thus ensure the stable operation when adopting short distance nitration-synchronous nitration and denitrification biomembrance process process oil refining catalyst waste water.
The technical solution used in the present invention is: the reactor realizing suspension of biofilm under a kind of low aeration rate, comprise vertical cylindrical shell, vertical hollow is coaxially provided with in described housing, in described hollow, paddle is installed, the barrel of described hollow offers several through holes, the bottom of described hollow is fixedly connected with the bottom of described housing, is filled with biofilm carrier in the annular space between described hollow and described housing.
Preferably, described biofilm carrier is the ball-type of hollow, comprise porous supporting layer, wire drawing packing layer and resin bed from outside to inside successively, described porous supporting layer is cellular, the filler of described wire drawing packing layer is that the mixture wire drawing of TPO and polyamide forms, and described resin bed adopts large hole cation exchanger resin.
The two ends of every rhizoid shape filler of described wire drawing packing layer are preferably separately fixed on described porous supporting layer and resin bed, usually, described thread uniform filling distribution, arrange radially from described resin bed to described porous supporting layer, the packing ratio of thread filler described in described wire drawing packing layer can be 35% ~ 45%.
In described filler, the mass ratio of TPO and polyamide is preferably 1:1.5 ~ 1:1.
The material of described porous supporting layer can be PE, its size can be Φ 50mm × 2mm, the size of described packing layer can be Φ 46mm × 10mm, and the size of described resin bed can be Φ 26mm × 10mm, and the size of the hollow space of described biofilm carrier can be Φ 6mm.
In described annular space, the packing ratio of described biofilm carrier is preferably 35% ~ 40%.
Described through hole is preferably the bar hole of the shape that helically to rise from bottom to top along the barrel of described hollow, and bar hole described in several is preferably crisscross arranged up and down on the barrel of described hollow.
Preferably, the width being positioned at the described bar hole of the bottom of described hollow is less than the width of the described bar hole on the top being positioned at described hollow, or in bar hole described in several, the width being positioned at the bar hole of below is less than the width of the bar hole of the side of being located thereon.
Further, spacing between the adjacent described bar hole of the bottom of described hollow is less than the spacing between the adjacent described bar hole on the top of described hollow, or in bar hole described in several, the spacing between the adjacent bar hole of below is less than the spacing between the adjacent bar hole of the side of being located thereon.
The length of described bar hole can be 70% ~ 80% of the girth of the cross section of described hollow, width can be 2 ~ 5mm, the driving shaft of described paddle can be positioned on the axis of described hollow, distance between the outer rim mid point of the blade of described paddle and the inwall of described hollow can be 30% ~ 40% of the internal diameter of described hollow, and the rotating speed of paddle is preferably 90rpm.
Beneficial effect of the present invention: the present invention is stirred the waste water in hollow by paddle, the waste water in hollow is made to present stable turbulent flow form, turbulent flow in hollow is delivered to outside by the through hole on barrel, then the biofilm carrier in the annular space of disturbance between hollow and housing, the Unique physical design of reactor combines the control to the rotating speed of paddle, can ensure that under low aeration rate the biofilm carrier in reactor is in suspended state all the time, keep good fluidization characteristic, thus stable maintenance short distance nitration advantage is also for synchronous nitration and denitrification creates favorable conditions, reduce aeration energy consumption and the carbon source material consumption in denitrification stage, the biofilm carrier caused because rotating speed of agitator is too low also can be avoided to pile up, and the problem of too high the caused biofilm carrier of rotating speed of agitator fierce collision and/or biofilm detachment to each other.
The use of the biofilm carrier of unique texture, effectively carrier can be adhered on the one hand for growth of microorganism provides, improve the collection efficiency of ammonia oxidation bacteria targetedly, solve the problem of sludge loss, improve the capacity of resisting impact load of reactor, ammonia nitrogen ion-exchange fast can also be carried out on the other hand in initial reaction stage, ammonia nitrogen is assembled in a large number at filling surface in short time, for the ammonia oxidation bacteria rapid biofilm on filler provides growth substrate, along with microorganism is to the utilization of ammonia nitrogen, ammonia nitrogen concentration on resin bed constantly reduces, the resin bed part also can saved in common process needs the step of regeneration, described biofilm carrier can in the function without the need to repeatedly realizing rapid biofilm startup when regeneration.
Novel biofilm carrier of the present invention has that specific area is large, good hydrophilic property, strong shock resistance, easy to be filmed and biologically active high.Cellular porous bearing course mainly plays support effect; Thread filler is uniformly distributed in effective coverage, and gas, water and biomembrane can be made to obtain fully contacting mixed oozing, easy to be filmed, biomembrane equably raw on each rhizoid shape filler, more and more large specific area can be obtained in course of reaction; Setting and the inside thereof of hollow layer are full of air, can reduce the global density of biofilm carrier, are conducive to it and continue to keep suspended state in reactor.
Biofilm carrier is rational packing ratio in annular space, be beneficial to its suspension in annular space, also effectively can reduce the probability of the fierceness collision between biofilm carrier, can effectively avoid further because fierce collision causes the situation of biofilm detachment to occur each other.
The bar hole that through hole helically rises and each bar hole are crisscross arranged up and down, the turbulent flow being conducive to being formed in hollow is delivered to the annular space of hollow outside, also can strengthen the disturbance of current in annular space further, and rely on the mode of spiral water outlet, stable eddy flow is formed in annular space, thus when avoiding fierce shock, not only enhance immixture, but also be conducive to the suspension of biofilm carrier, the design of the spacing between the width of the bar hole of the diverse location up and down of hollow and adjacent bar hole, the hydraulic pressure of annular space bottom is made to be greater than the hydraulic pressure on top all the time, be conducive to ensureing that biofilm carrier keeps suspended state and good fluidization characteristic in annular space.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is top view of the present invention;
Fig. 3 is the structural representation of biofilm carrier of the present invention.
Detailed description of the invention
See Fig. 1, Fig. 2 and Fig. 3, the reactor of suspension of biofilm is realized under the invention provides a kind of low aeration rate, mainly for the treatment of oil refining catalyst waste water, comprise vertical cylindrical shell 1, vertical hollow 2 is coaxially provided with in described housing, paddle 3 is installed in described hollow, the driving shaft 4 of described paddle can be positioned on the axis of described hollow, the rotating speed of described paddle is preferably 90rpm, the barrel of described hollow offers several through holes 5, the bottom of described hollow is fixedly connected with the bottom of described housing, biofilm carrier 6 is filled with in annular space between described hollow and described housing, can seal between the bottom of described hollow and the bottom of described housing, also gap can be left, the size in this gap does not allow described biofilm carrier to pass through, described reactor can be provided with the waste water inlet and outlet piping be communicated with the inner space of described hollow, waste water inlet and outlet piping can be provided with respective control valve.For keeping good short distance nitration and synchronous nitration and denitrification effect, in course of reaction, in usual adjustment reactor, the concentration of dissolved oxygen is 0.5 ~ 1.0mol/L(aeration rate is 0.01 ~ 0.02m
3/ h), aeration time is 6h, and reaction temperature is 33 DEG C, pH value is 6.5 ~ 8.0, can add anhydrous sodium acetate in order to increase carbon source in the denitrification stage, injected volume can throw in 8 grams of anhydrous sodium acetates for every gram of nitrate nitrogen, and the anti-nitration reaction time can be 1.5 ~ 2h.
The present invention is stirred the waste water in described hollow by described paddle in course of reaction, the waste water in described hollow is made to present stable turbulent flow form, turbulent flow in described hollow is delivered to outside by the through hole on barrel, then the biofilm carrier in the annular space of disturbance between described hollow and described housing, the design of the above-mentioned unique texture of reactor combines the control to the rotating speed of described paddle, can ensure that under low aeration rate the biofilm carrier in reactor is in suspended state all the time, keep good fluidization characteristic, thus stable maintenance short distance nitration advantage is also for synchronous nitration and denitrification creates favorable conditions, reduce aeration energy consumption and the carbon source material consumption in denitrification stage, the biofilm carrier caused because described rotating speed of agitator is too low also can be avoided to pile up, and the problem of too high the caused biofilm carrier of described rotating speed of agitator fierce collision and/or biofilm detachment to each other.
Preferably, described biofilm carrier is the ball-type of hollow, comprise porous supporting layer 7, wire drawing packing layer 8 and resin bed 9 from outside to inside successively, the part of its hollow is hollow layer 10, described porous supporting layer is cellular, is convenient to microorganism and passes, and material can adopt PE, its size can be Φ 50mm × 2mm, mainly plays support effect, the filler of described wire drawing packing layer is that the mixture wire drawing of TPO and polyamide forms, in described filler, the mass ratio of TPO and polyamide is preferably 1:1.5 ~ 1:1(as 1:1.5, 1:1.3, 1:1.2 or 1:1), the two ends of every rhizoid shape filler are preferably separately fixed on described porous supporting layer and resin bed, the hard and soft appropriateness of thread filler, usually, described thread uniform filling distribution, arrange radially from described resin bed to described porous supporting layer, gas can be made, water and biomembrane obtain fully contacting mixed oozing, easy to be filmed, biomembrane equably raw on each rhizoid shape filler, more and more large specific area can be obtained in course of reaction, the size of described wire drawing packing layer can be Φ 46mm × 10mm, the packing ratio of filler described in described wire drawing packing layer can be that 35% ~ 45%(is as 35%, 38%, 40%, 42% or 45%), described resin bed adopts large hole cation exchanger resin, and size can be Φ 26mm × 10mm, under normal circumstances, be air in described hollow layer, size can be Φ 6mm, and setting and the inside thereof of described hollow layer are full of air, can reduce the global density of described biofilm carrier, is conducive to it and continues to keep suspended state in course of reaction.
It is large that described novel biofilm carrier has specific area, good hydrophilic property, strong shock resistance, easy to be filmed and biologically active high, its unique texture effectively can adhere to carrier for growth of microorganism provides on the one hand, improve the collection efficiency of ammonia oxidation bacteria targetedly, solve the problem of sludge loss, improve the capacity of resisting impact load of reactor, ammonia nitrogen ion-exchange fast can also be carried out on the other hand in initial reaction stage, ammonia nitrogen is assembled in a large number at filling surface in short time, for the ammonia oxidation bacteria rapid biofilm on filler provides growth substrate, along with microorganism is to the utilization of ammonia nitrogen, ammonia nitrogen concentration on resin bed constantly reduces, the resin bed part also can saved in common process needs the step of regeneration.Specific in course of reaction: when reactor start-up, the a large amount of ammonia nitrogen of absorption in the described resin bed short time, quick growth biofilm for the ammonia oxidation bacteria of described packing layer is provided convenience condition, at the end of reaction is fast, the ammonia nitrogen that described resin bed adsorbs will by microbial consumption, now can realize the regeneration of described resin bed, new reaction time is when starting, described resin bed has new ion-exchange site for the gathering of ammonia nitrogen, therefore described biofilm carrier can in the function without the need to repeatedly realizing rapid biofilm startup when regeneration, simultaneously under the stirring action of described paddle, described packing layer is fully contacted with waste water, reaction rate accelerates, thus realize short distance nitration-synchronous nitration denitrification denitrogenation process quickly and efficiently.
In described annular space, the packing ratio (volume of biofilm carrier and the volume ratio of annular space) of described biofilm carrier is preferably 35% ~ 40%(as 35%, 36%, 38% or 40%), rational packing ratio is conducive to the suspension of described biofilm carrier in annular space (having enough clearance spaces in annular space for suspension of biofilm), also effectively can reduce the probability of the fierceness collision between biofilm carrier, can effectively avoid further because the collision of mutual fierceness causes the situation of biofilm detachment to occur.
Described through hole in described hollow is preferably the bar hole of the shape that helically to rise from bottom to top along the barrel of described hollow, and bar hole described in several is preferably crisscross arranged up and down on the barrel of described hollow.The turbulent flow that the structure of described through hole and set-up mode are conducive to being formed in described hollow is delivered to outside annular space, also can strengthen the disturbance of current in annular space further.
Preferably, bar hole described in several presents lower narrow wide form, following two kinds of modes can be adopted to arrange, a kind of mode for be positioned at the bottom of described hollow several described in the width of bar hole identical, the width being positioned at the remaining described bar hole on the top of described hollow is identical, and the width being positioned at the bar hole of the bottom of described hollow is less than the width of the remaining bar hole on the top being positioned at described hollow, another kind of mode is in all described bar holes, the width being positioned at the bar hole of below is less than the width of the bar hole of the side of being located thereon, namely the width of bar hole described in several becomes large from bottom to top gradually.
Further, spacing between each adjacent described bar hole presents lower narrow wide form, equally also can adopt and arrange in two ways, a kind of mode is that the spacing between bar hole adjacent in the bar hole of the bottom of described hollow is identical, spacing between bar hole adjacent in the remaining bar hole on the top of described hollow is identical, and the spacing between the adjacent bar hole of the bottom of described hollow is less than the spacing between the adjacent bar hole on the top of described hollow, another kind of mode is in all described bar holes, spacing between the adjacent bar hole of below is less than the spacing between the adjacent bar hole of the side of being located thereon, namely the spacing between each adjacent described bar hole becomes large from bottom to top gradually.
The design of the spacing between the width of the bar hole of the upper and lower obstructed position of described hollow and adjacent bar hole, the hydraulic pressure of annular space bottom can be made to be greater than the hydraulic pressure on top all the time, to be conducive to ensureing that biofilm carrier keeps suspended state and good fluidization characteristic in annular space.
The length of described bar hole can be 70% ~ 80% of the girth of the cross section of described hollow, and width can be 2 ~ 5mm, is convenient to the transmission of the turbulent flow inside and outside described hollow.Distance between the outer rim mid point of the blade of described paddle and the inwall of described hollow can be 30% ~ 40% of the internal diameter of described hollow, is conducive to described paddle and forms stable turbulent flow in the inner space of described hollow in whipping process.
Our experiments show that, the operational effect contrast of (effective sludge concentration is about 3500mg/L, running temperature 33 DEG C, dissolved oxygen 0.5 ~ 1.0mg/L) under identical process conditions of the present invention and existing common biofilm reactor is as shown in the table:
Table 1 is that two reactor synchronous nitration and denitrifications are to the removal amount of three nitrogen, as can be seen from Table 1, due to the unique texture of reactor of the present invention and the effect of novel biofilm carrier, biofilm carrier of the present invention can be stable be in good suspension fluidization state, make the synchronous nitration and denitrification phenomenon stability and high efficiency in reactor, its successful is higher than common biofilm reactor.In addition, when influent ammonium concentration raises, the synchronous nitration and denitrification phenomenon in the present invention does not decline, and occurs on the contrary obviously rising, illustrate the stability of biofilm system and all more common biofilm system of capacity of resisting impact load strong.Visible, unique structure of reactor and the use of novel biofilm carrier make reactor nitrogen removal performance obtain and fully play, serve obvious facilitation to the raising of nitric efficiency.
Synchronous nitration and denitrification three nitrogen removal amount of the present invention maintains 30 ~ 50mg/L substantially, illustrates that the nitrite nitrogen of quite a few and nitrate nitrogen are removed by this process.Denitrification process needs organic carbon source, and biofilm carrier of the present invention can make microorganism stop the longer time in systems in which, and good fluidized state is conducive to biomembrane contacts with organic.Because in containing wastewater from catalyst, content of organics is low, therefore, while effective enriched microorganism, keep the fluidized state of biofilm carrier just to seem very necessary, the present invention is while guarantee biomass, effectively improve biomembrane and organic contacting efficiency, save carbon source further.
Claims (9)
1. under a low aeration rate, realize the reactor of suspension of biofilm, comprise vertical cylindrical shell, it is characterized in that coaxially being provided with vertical hollow in described housing, in described hollow, paddle is installed, the barrel of described hollow offers several through holes, the bottom of described hollow is fixedly connected with the bottom of described housing, biofilm carrier is filled with in annular space between described hollow and described housing, described biofilm carrier is the ball-type of hollow, comprise porous supporting layer successively from outside to inside, wire drawing packing layer and resin bed, described porous supporting layer is cellular, the filler of described wire drawing packing layer is that the mixture wire drawing of TPO and polyamide forms, described resin bed adopts large hole cation exchanger resin.
2. under low aeration rate according to claim 1, realize the reactor of suspension of biofilm, it is characterized in that the two ends of every rhizoid shape filler of described wire drawing packing layer are separately fixed on described porous supporting layer and resin bed, described thread uniform filling distribution, arrange radially from described resin bed to described porous supporting layer, described in described wire drawing packing layer, the packing ratio of thread filler is 35% ~ 45%.
3. realize the reactor of suspension of biofilm under low aeration rate according to claim 1, it is characterized in that the mass ratio of TPO and polyamide in described filler is 1:1.5 ~ 1:1.
4. under low aeration rate according to claim 1, realize the reactor of suspension of biofilm, it is characterized in that the material of described porous supporting layer is PE, it is of a size of Φ 50mm × 2mm, described packing layer is of a size of Φ 46mm × 10mm, described resin bed is of a size of Φ 26mm × 10mm, and the hollow space of described biofilm carrier is of a size of Φ 6mm.
5. realize the reactor of suspension of biofilm under low aeration rate according to claim 1, it is characterized in that the packing ratio of described biofilm carrier in described annular space is 35% ~ 40%.
6. under the low aeration rate according to claim 1,2,3,4 or 5, realize the reactor of suspension of biofilm, it is characterized in that described through hole is the bar hole of shape of helically rising from bottom to top along the barrel of described hollow, bar hole described in several is crisscross arranged up and down on the barrel of described hollow.
7. under low aeration rate according to claim 6, realize the reactor of suspension of biofilm, it is characterized in that the width of the described bar hole of the bottom being positioned at described hollow is less than the width of the described bar hole on the top being positioned at described hollow, or in bar hole described in several, the width being positioned at the bar hole of below is less than the width of the bar hole of the side of being located thereon.
8. under low aeration rate according to claim 7, realize the reactor of suspension of biofilm, the spacing that it is characterized in that between the adjacent described bar hole of the bottom of described hollow is less than the spacing between the adjacent described bar hole on the top of described hollow, or in bar hole described in several, the spacing between the adjacent bar hole of below is less than the spacing between the adjacent bar hole of the side of being located thereon.
9. under low aeration rate according to claim 8, realize the reactor of suspension of biofilm, it is characterized in that the length of described bar hole is 70% ~ 80% of the girth of the cross section of described hollow, width is 2 ~ 5mm, the driving shaft of described paddle is positioned on the axis of described hollow, and the distance between the outer rim mid point of the blade of described paddle and the inwall of described hollow is 30% ~ 40% of the internal diameter of described hollow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310463077.8A CN103508555B (en) | 2013-10-08 | 2013-10-08 | Reactor for realizing suspension of biofilm carriers under low aeration quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310463077.8A CN103508555B (en) | 2013-10-08 | 2013-10-08 | Reactor for realizing suspension of biofilm carriers under low aeration quantity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103508555A CN103508555A (en) | 2014-01-15 |
| CN103508555B true CN103508555B (en) | 2015-04-29 |
Family
ID=49892050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310463077.8A Active CN103508555B (en) | 2013-10-08 | 2013-10-08 | Reactor for realizing suspension of biofilm carriers under low aeration quantity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103508555B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103896399A (en) * | 2014-03-29 | 2014-07-02 | 北京工业大学 | Sewage treatment reaction device in combination of activated-sludge method and biofilm method |
| CN106554071B (en) * | 2015-09-29 | 2019-05-03 | 浙江弘达环保科技有限公司 | Biological contact oxidation pond |
| CN105293693B (en) * | 2015-11-26 | 2018-08-28 | 中国矿业大学 | A kind of anaerobic ammonia oxidizing bacteria cultural method based on zwitterion resin |
| CN110227280A (en) * | 2019-06-14 | 2019-09-13 | 南京恒桥化学技术材料有限公司 | A kind of photoinitiator crystallizing device of anti-inner wall crystallization |
| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508488A (en) * | 2009-03-18 | 2009-08-19 | 四川农业大学 | Sequencing batch biomembrane reaction device and sewage treatment method |
| JP4433276B2 (en) * | 2003-11-14 | 2010-03-17 | 東洋紡績株式会社 | Hollow fiber membrane filtration module and cleaning method thereof |
| CN201678571U (en) * | 2010-05-18 | 2010-12-22 | 东北农业大学 | Carrier assembly for improving methane yield of fermented dairy manure |
| CN102372362A (en) * | 2011-09-30 | 2012-03-14 | 东北林业大学 | Integrated biomembrane and granule sludge coupling reactor and method for synchronously removing nitrogen and phosphorus from sewage |
| CN202246233U (en) * | 2010-07-23 | 2012-05-30 | 旭化成化学株式会社 | Microbial carrier for sewage treatment and sewage treatment appliance |
| CN203123692U (en) * | 2013-04-03 | 2013-08-14 | 赵静 | Integrated sewage treatment device |
| CN203389370U (en) * | 2013-08-12 | 2014-01-15 | 河北博强环保科技有限公司 | Oil-water separator |
-
2013
- 2013-10-08 CN CN201310463077.8A patent/CN103508555B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4433276B2 (en) * | 2003-11-14 | 2010-03-17 | 東洋紡績株式会社 | Hollow fiber membrane filtration module and cleaning method thereof |
| CN101508488A (en) * | 2009-03-18 | 2009-08-19 | 四川农业大学 | Sequencing batch biomembrane reaction device and sewage treatment method |
| CN201678571U (en) * | 2010-05-18 | 2010-12-22 | 东北农业大学 | Carrier assembly for improving methane yield of fermented dairy manure |
| CN202246233U (en) * | 2010-07-23 | 2012-05-30 | 旭化成化学株式会社 | Microbial carrier for sewage treatment and sewage treatment appliance |
| CN102372362A (en) * | 2011-09-30 | 2012-03-14 | 东北林业大学 | Integrated biomembrane and granule sludge coupling reactor and method for synchronously removing nitrogen and phosphorus from sewage |
| CN203123692U (en) * | 2013-04-03 | 2013-08-14 | 赵静 | Integrated sewage treatment device |
| CN203389370U (en) * | 2013-08-12 | 2014-01-15 | 河北博强环保科技有限公司 | Oil-water separator |
Non-Patent Citations (1)
| Title |
|---|
| 卢健聪 等.基于能源回收的城市污水厌氧氨氧化生物脱氮新工艺.《环境科学》.2013,第34卷(第4期),1435-1441. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103508555A (en) | 2014-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103508555B (en) | Reactor for realizing suspension of biofilm carriers under low aeration quantity | |
| CN101514064B (en) | Biological denitrification device of sequencing batch internal circulation biological denitrification process | |
| CN103693738A (en) | Composite semi-nitration-anaerobic ammonia oxidation autotrophic denitrification device and operating method thereof | |
| CN201046931Y (en) | Suspending biological filler for water treatment | |
| CN101357806B (en) | Nitrification-anammox processing method and equipment of poultry-livestock culture waste waters | |
| CN201737772U (en) | Suspension polyurethane foam sponge filler for water treatment | |
| CN203639237U (en) | Combined type half-nitrification-anaerobic ammonia oxidization autotrophic nitrogen removal device | |
| CN102583736A (en) | Sewage biochemical treatment process and device utilizing active sludge and biological membrane combined circulating flow | |
| CA2550121A1 (en) | Biomass carrier promoting simultaneous nitrification-de-nitrification | |
| CN107473369A (en) | The micro-nano aeration and biological membrane module of seaweed type that aeration tunica fibrosa and water course in situ are administered | |
| CN103641241B (en) | Preposed denitrification aeration biofilter and method for treating sewage | |
| CN103708608B (en) | Method based on MBBR for removing ammonia nitrogen from high salinity wastewater | |
| CN103351078B (en) | Short-cut denitrification system and method combining coal chemical industry wastewater outside loop moving bed reactor and biological aerated filter | |
| CN108298690B (en) | Integral partial nitrosation-anaerobic ammoxidation sloping plate reinforced bioreactor | |
| CN110845005B (en) | Method for synchronously desulfurizing and denitrifying wastewater based on biological trickling filter reactor | |
| CN103739063B (en) | MBBR (Moving Bed Biological Reactor)-based pretreatment method of anaerobic ammonia oxidation process | |
| CN102627349A (en) | Swastika-shaped nesting filler for sewage treatment and production method thereof | |
| CN210150801U (en) | Integrated sewage treatment tank applying biological multiplication and fluidized bed process | |
| CN105417688A (en) | Spherical filler and special-shaped carbon filler and their applications | |
| CN107089726B (en) | Wastewater treatment reactor and wastewater treatment process method | |
| CN103708605B (en) | Method based on MBBR for removing ammonia nitrogen from high hardness wastewater | |
| CN202022787U (en) | Minitype efficient composite type ammonia nitrogen removal equipment for domestic sewage | |
| CN105254010A (en) | Reverse aeration sewage treatment pool and treatment method adopting treatment pool | |
| CN206069641U (en) | Coking wastewater processing system | |
| CN212609817U (en) | Intermittent type formula air stirring sewage hydrolysis acidification reactor |
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 | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: China National Petroleum Corp. Patentee after: China Kunlun Engineering Co., Ltd. Address before: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee before: China National Petroleum Corp. Patentee before: China Kunlun Contracting & Engineering Corporation |