CN105198165A - Sewage treatment method - Google Patents
Sewage treatment method Download PDFInfo
- Publication number
- CN105198165A CN105198165A CN201510661013.8A CN201510661013A CN105198165A CN 105198165 A CN105198165 A CN 105198165A CN 201510661013 A CN201510661013 A CN 201510661013A CN 105198165 A CN105198165 A CN 105198165A
- Authority
- CN
- China
- Prior art keywords
- sewage
- aeration
- treatment method
- bod
- water treatment
- 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.)
- Pending
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a sewage treatment method, belonging to the technical field of water treatment. The method comprises the following steps: aerating sewage, then stopping aeration, simultaneously carrying out stirring and sludge refluxing and finally draining water via membrane filtration while carrying out aeration. The method has the advantages that nitrification, denitrification, coagulating reaction and filtration are integrated in one tank, thus saving sedimentation tanks and filter systems, reducing the land occupied by sewage treatment projects and reducing investment as well.
Description
Technical field
The invention belongs to water-treatment technology field, be specifically related to a kind of sewage water treatment method.
Background technology
SBR is the abbreviation of sequencing batch reactor (SequencingBatchReactorActivatedSludgeProcess), is a kind of active sludge sewage disposal technology run by intermittent aeration mode, also known as sequencing batch active sludge.Its cycle of operation by intaking, react, precipitate, draining, idle five processes form.All operations all carries out in the same equipment being provided with aeration or whipping appts.In reaction process, by controlling dissolved oxygen content in aeration rate equalizing tank, nitrifying process and denitrification process can be made to hocket, thus reach the object of denitrogenation.There is following shortcoming in the method: 1, requires during draining not stir precipitating sludge layer, thus need special water-freeing arrangement (water decanter), and very high to the requirement of water decanter.2, owing to not establishing preliminary sedimentation tank, easily produce scum silica frost, scum problem is not yet properly settled.
MBR, also known as membrane bioreactor (MembraneBio-Reactor), is a kind of new type water treatment technology combined with biological processing unit by film separation unit.Can be divided into according to the effect of membrane module: membrane aerated bioreactor; Extraction film-bioreactor; Film-separation biological reactor.There is following shortcoming in the method: 1, fouling membrane easily occurs, makes troubles to operational administrative; 2, single MBR technique combines without nitrated and denitrification, and denitrification effect is undesirable.
Summary of the invention
The object of this invention is to provide a kind of sewage water treatment method, the method can effectively be disposed of sewage, and can be cost-saving.
Technical scheme of the present invention is achieved in that a kind of sewage water treatment method, comprises the following steps: sewage is carried out aeration, then stops aeration, stir simultaneously, and carry out sludge reflux, and backmost membrane filtering drainage is passed through on aeration limit.
Preferably, COD≤500mg/L, BOD in described sewage
5≤ 300mg/L, TSS≤150mg/L, vegetable and animals oils≤30mg/L, mineral oil≤3mg/L, pH are 6 ~ 9, BOD
5/ TN>=4, total alkalinity/ammonia nitrogen>=3.6, BOD
5/ TP>=17.
Preferably, described sewage to be intake aeration when intaking.
Preferably, during described sludge reflux, the ratio of the flow of mud and the flooding velocity of sewage is 10% ~ 50%.
In the present patent application, water inlet aeration phase, aeration phase and water outlet aeration phase are the nitration reaction stage; Stop aeration, agitation phases and sludge reflux are the anti-nitration reaction stage.
In the original technology of MBR, increase the anti-nitration reaction stage, improve denitrification effect.By nitrated, anti-nitration reaction stage alternately, the pollution of MBR film in this technique is controlled.Water after purification is directly by membrane filtration, and solve in former SBR technique, draining section need stop the problem of aeration and scum silica frost.
Film of the present invention is hollow structure, is hollow in film pipe, and the pressure difference of purifying waste water inside and outside due to film is moved in the export-oriented film of film, and pollutent is trapped in outside film by membranous wall.
Beneficial effect of the present invention is: this sewage water treatment method collection is nitrated, denitrification, coagulating, be filtered into a pond, saves settling tank, filtering system, decreases the occupation of land of sewage treatment project, decrease investment equally.
Embodiment
Be clearly and completely described the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only one of them embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
Sewage is passed through pump water inlet 0.5 hour, and to system, carry out aeration 2 hours, then stop aeration, stir simultaneously, and carry out sludge reflux, the ratio of the flow of mud and the flooding velocity of sewage is 50%, and backmost membrane filtering drainage is passed through 1 hour in aeration limit.Then iterative cycles said process, completes nitrated and denitrification in its process.
Sewage passes through and detects before aeration, COD:500mg/L, BOD
5: 300mg/L, TSS:150mg/L, vegetable and animals oils: 30mg/L, mineral oil: 3mg/L, pH are 7.2, BOD
5/ TN>=4, total alkalinity/ammonia nitrogen>=3.6, BOD
5/ TP>=17.
Sewage after above-mentioned art breading, suspended substance>=90%, BOD
5>=95%, COD>=90%, ammonia nitrogen>=95%, total nitrogen>=85%, TP>=85%.Reach " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level A to mark).
This technique can effectively be removed TNT, TP, relaxes the concentration of ammonia nitrogen, total nitrogen, total phosphorus, saves settling tank, filtering system, and water outlet is better than the technique of single use MBR or SBR.
Embodiment 2
Sewage is passed through pump water inlet 0.5 hour, and to system, carry out aeration 2 hours, then stop aeration, stir simultaneously, and carry out sludge reflux, the ratio of the flow of mud and the flooding velocity of sewage is 10%, and backmost membrane filtering drainage is passed through 1 hour in aeration limit.Then iterative cycles said process, completes nitrated and denitrification in its process.
Sewage passes through and detects before aeration, COD:400mg/L, BOD
5: 250mg/L, TSS:100mg/L, vegetable and animals oils: 20mg/L, mineral oil: 2mg/L, pH are 7.6, BOD
5/ TN>=4, total alkalinity/ammonia nitrogen>=3.6, BOD
5/ TP>=17.
Sewage after above-mentioned art breading, suspended substance>=90%, BOD
5>=95%, COD>=90%, ammonia nitrogen>=95%, total nitrogen>=85%, TP>=85%.Reach " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level A to mark).
This technique can effectively be removed TNT, TP, relaxes the concentration of ammonia nitrogen, total nitrogen, total phosphorus, saves settling tank, filtering system, and water outlet is better than the technique of single use MBR or SBR.
Embodiment 3
Sewage is passed through pump water inlet 0.5 hour, during water inlet, intake while carry out aeration, aeration is carried out 2 hours to system, then stop aeration, stir simultaneously, and carry out sludge reflux, the ratio of the flow of mud and the flooding velocity of sewage is 40%, and backmost membrane filtering drainage is passed through 1 hour in aeration limit.Then iterative cycles said process, completes nitrated and denitrification in its process.
Sewage passes through and detects before aeration, COD:450mg/L, BOD
5: 280mg/L, TSS:130mg/L, vegetable and animals oils: 25mg/L, mineral oil: 2.3mg/L, pH are 8.4, BOD
5/ TN>=4, total alkalinity/ammonia nitrogen>=3.6, BOD
5/ TP>=17.
Sewage after above-mentioned art breading, suspended substance>=90%, BOD
5>=95%, COD>=90%, ammonia nitrogen>=95%, total nitrogen>=85%, TP>=85%.Reach " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level A to mark).
This technique can effectively be removed TNT, TP, relaxes the concentration of ammonia nitrogen, total nitrogen, total phosphorus, saves settling tank, filtering system, and water outlet is better than the technique of single use MBR or SBR.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a sewage water treatment method, is characterized in that: comprise the following steps: sewage is carried out aeration, then stops aeration, stir simultaneously, and carries out sludge reflux, and backmost membrane filtering drainage is passed through on aeration limit.
2. a kind of sewage water treatment method according to claim 1, is characterized in that: COD≤500mg/L, BOD in described sewage
5≤ 300mg/L, TSS≤150mg/L, vegetable and animals oils≤30mg/L, mineral oil≤3mg/L, pH are 6 ~ 9, BOD
5/ TN>=4, total alkalinity/ammonia nitrogen>=3.6, BOD
5/ TP>=17.
3. a kind of sewage water treatment method according to claim 1, is characterized in that: described sewage to be intake aeration when intaking.
4. a kind of sewage water treatment method according to claim 1, is characterized in that: during described sludge reflux, the ratio of the flow of mud and the flooding velocity of sewage is 10% ~ 50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510661013.8A CN105198165A (en) | 2015-10-14 | 2015-10-14 | Sewage treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510661013.8A CN105198165A (en) | 2015-10-14 | 2015-10-14 | Sewage treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105198165A true CN105198165A (en) | 2015-12-30 |
Family
ID=54946198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510661013.8A Pending CN105198165A (en) | 2015-10-14 | 2015-10-14 | Sewage treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105198165A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2915846Y (en) * | 2005-12-20 | 2007-06-27 | 沈阳建筑大学 | Intermediate aeration and water-outlet film bioreactor |
| CN101062807A (en) * | 2007-05-25 | 2007-10-31 | 大连理工大学 | Intensified anti-nitrated phosphorous-removal sequencing batch membrane bioreactor technique |
| KR101269253B1 (en) * | 2011-02-28 | 2013-05-29 | 경희대학교 산학협력단 | Membrane cleaning interval prediction method and system in membrane bioreactor |
| CN103755100A (en) * | 2014-01-21 | 2014-04-30 | 重庆林德科技发展有限公司 | Method for solving membrane bio-reactor (MBR) membrane blocking and composite MBR membrane bio-reaction system |
-
2015
- 2015-10-14 CN CN201510661013.8A patent/CN105198165A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2915846Y (en) * | 2005-12-20 | 2007-06-27 | 沈阳建筑大学 | Intermediate aeration and water-outlet film bioreactor |
| CN101062807A (en) * | 2007-05-25 | 2007-10-31 | 大连理工大学 | Intensified anti-nitrated phosphorous-removal sequencing batch membrane bioreactor technique |
| KR101269253B1 (en) * | 2011-02-28 | 2013-05-29 | 경희대학교 산학협력단 | Membrane cleaning interval prediction method and system in membrane bioreactor |
| CN103755100A (en) * | 2014-01-21 | 2014-04-30 | 重庆林德科技发展有限公司 | Method for solving membrane bio-reactor (MBR) membrane blocking and composite MBR membrane bio-reaction system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103819049B (en) | A kind of sewage water treatment method and system | |
| CN204058199U (en) | A kind of A2/O+ MBR combined sewage water regenerating unit | |
| KR20030066271A (en) | ASAM: Advanced Step Aeration with Media(ASA, SFC-Biofilter) | |
| CN103159381A (en) | Fine chemical wastewater treatment and reuse method | |
| CN105565581B (en) | Coal ethylene wastewater integrated conduct method | |
| CN105645662B (en) | The removing means and removal methods of hardly degraded organic substance in film-filter concentration liquid | |
| CN103408201B (en) | The treatment process of trade effluent during silicon wafer mortar reclaims | |
| CN107151053A (en) | A kind of aerobic membrane module processing unit of anoxic anaerobic/anoxic | |
| CN101746931A (en) | Denitrification dephosphorization biological treatment and filtration integral sewage treatment system and method thereof | |
| CN201598224U (en) | Biological nitrogen and phosphorus removal treatment and filter integrated sewage treatment system | |
| CN202881052U (en) | Device for removing phosphorus chemically and forcibly by adopting A2O, membrane separation and cloth filter filtering | |
| CN101168461A (en) | Sewage denitrogenation dephosphorylation treatment method by using biological film to filter | |
| CN108975493A (en) | The method of resource of urine waste water | |
| CN101372379B (en) | Double membrane processing method for organic wastewater | |
| CN103435158A (en) | Method for reinforcing phosphorus removal and membrane pollution delaying of MBR | |
| CN107055940B (en) | High-ammonia-nitrogen sewage advanced treatment process based on short-cut nitrification and denitrification | |
| CN105016578A (en) | Treatment system and method for aged leachate in refuse landfill | |
| CN102502908A (en) | Method for purifying reverse osmosis concentrated water with active carbon-membrane separation countercurrent absorption | |
| CN105859031B (en) | A kind of cassava preparing alcohol advanced waste treatment system | |
| CN210457857U (en) | Sewage treatment system for sewage outfall of river regulation | |
| CN105198165A (en) | Sewage treatment method | |
| CN103771656A (en) | Reusing treatment method of refinery waste water | |
| CN106830505A (en) | A kind of VB12 Wastewater zero-discharge treatment systems and handling process | |
| CN207375918U (en) | MBR combined films town sewage treatment systems | |
| CN207552128U (en) | A kind of device of integrated membrane process hydridization removal low concentration selenium-containing wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151230 |