CN1159429A - Sewage treating method - Google Patents
Sewage treating method Download PDFInfo
- Publication number
- CN1159429A CN1159429A CN96110674A CN96110674A CN1159429A CN 1159429 A CN1159429 A CN 1159429A CN 96110674 A CN96110674 A CN 96110674A CN 96110674 A CN96110674 A CN 96110674A CN 1159429 A CN1159429 A CN 1159429A
- Authority
- CN
- China
- Prior art keywords
- active sludge
- stabilization
- wastewater treatment
- record
- humus
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1221—Particular type of activated sludge processes comprising treatment of the recirculated sludge
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1226—Particular type of activated sludge processes comprising an absorbent material suspended in the mixed liquor
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
- Water Treatment By Sorption (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention relates to an improvement method of contact stabilization method as waste water treatment method, substantially, aeration mixing is performed under oxygen supply condition in the stabilization procedure, dissolve-out components containing at least one filling material among humus, dissolve-out silica, and dissolve-out silica precursor are added in the active sludge in the activation procedure, so as to perform contact mixing, thereby improving coagulation absorption force of active sludge and forming capability of flocculation.
Description
The present invention relates to a kind of method of wastewater treatment, relate to a kind of method of wastewater treatment that can further improve the aggegation adsorptive power and the throw out formation ability of active sludge in more detail.
Known conventional actived sludge is to carry out the method that biological chemistry is handled with containing organic waste water.
This conventional actived sludge is that dissolved organic matter that decomposes rapidly when utilizing biological chemistry to handle and the suspended organism that needs certain hour to decompose are handled in same aerator tank.Therefore, contain under the more situations such as following water of suspended organism in processing, aerator tank will be designed to be able to carry out long-time as far as possible aeration so that the suspended organism can decompose.
If but were conceived to dissolved organic matter, then would not do not need long-time aeration.
For avoiding the unnecessary waste of this conventional actived sludge, practical application at present be the contact stabilization method, the contact of suspended organism is adsorbed on the throw out of active sludge, throw out solid-liquid separation in settling bath only promptly contains solid part the organic active sludge of suspended and imports in the aerator tank afterwards; Aeration between carrying out is in case of necessity handled.In above-mentioned contact stabilization method, as long as be provided with the contact adsorption tank of low capacity, just can reduce the capacity of aerator tank significantly, this is its advantage place.In this contact stabilization method, dissolved organic matter is attracted on the active sludge, is decomposed by biological chemistry in absorption.
But in the existing contact stabilization method, the organic contact absorption of dissolved organic matter or suspended is insufficient, and therefore expectation improves the aggegation adsorptive power of active sludge and the formation ability of throw out.
The object of the present invention is to provide a kind of method of wastewater treatment that can further improve the aggegation adsorptive power and the throw out formation ability of active sludge.
As the new feature of feature of the present invention as claimed in claim.The present invention itself and additional purpose thereof and effect such as following description and the embodiment of the present invention example description.
Fig. 1 implements the block diagram of the device example of method of wastewater treatment of the present invention for expression.
Detailed description and accompanying drawing with reference to following can be well understood to purpose of the present invention and feature thereof.But accompanying drawing only is used for illustrating the present invention, not delimit the scope of the invention.
Followingly enforcement state of the present invention is described with reference to Fig. 1.
Fig. 1 is made up of following operation: contact absorption process 1, solid-liquid separation process 2, stabilization operation 3, activation procedure 4, the activation stabilization system of being made up of stabilization operation 3 and activation procedure 45.
At first, contain organic waste water and be introduced into contact absorption process 1.In contact absorption process 1, waste water mixed in tempering tank 3-8 hour with active sludge.Active sludge in the tempering tank contacts with waste water, and solvability and/or the suspended organism in the waste water contained in absorption.
This active sludge is with previous different, and in activation stabilization system 5, this active sludge is processed into state, and the aggegation adsorptivity of active sludge self has improved, and throw out forms ability and also further improves.Form ability for aggegation adsorptivity and throw out, can in tempering tank, get in a certain amount of active sludge ground beaker visual adding their confirmation.
Improving major cause that this aggegation adsorptivity and throw out form ability and can not negating be to result from the meta-bolites that microorganism self discharges.Even form ability but previous active sludge also has aggegation adsorptivity and throw out, therefore further improving aggegation adsorptivity and throw out, to form ability may be because the amount of meta-bolites has increased, also may because other reasons cause.
The inventor thinks that its reason is as described below.The first, the stripping composition self in activation stabilization system 5 may have agglutinability; The 2nd, this stripping composition may make the microbial growth environment change, and the potential agglutinability of microorganism itself is displayed, and whole agglutinabilities and the throw out formation ability of utilizing the present invention to handle have been strengthened.
The microorganism of growth is aerobic or anaerobion in contact absorption process 1, mainly is bacillus.This bacillus does not just have the above-mentioned organic agglutinability of absorption, and has the character of absorption foul smell composition (Ammonia, Sulfur class etc.).This point can be confirmed by examination by sensory organs.
The organism that contains in the waste water among the present invention is meant solvability and/or suspended organism, and the waste water among the present invention is meant down various waste water such as water, stool and urine waste water, sanitary wastewater.
In contact absorption process 1, air supply in above-mentioned waste water carries out the successive aeration agitation.That is the contact absorption of, being undertaken by active sludge among the present invention is what to carry out under aerobic condition.Activated sludge concentration in the contact absorption process 1 preferably remains in the scope of 3000-8000ppm.
Then, waste water enters solid-liquid separation process 2 from contact absorption process 1.In solid-liquid separation process 2, waste water etc. are separated into absorption and contain organic active sludge and removed treatment of organic matters of organic water in fact.
Treating water carries out subsequent disposal, for example film processing, desalting treatment, electrolysis treatment, activated carbon treatment etc. as required.Solid-liquid separation process 2 uses settling bath usually, but also can utilize film to handle.
Then, contain in the organic active sludge importing activation stabilization system 5 separated in solid-liquid separation process 2 partly or entirely adsorbing.Activation stabilization system 5 is made up of stabilization operation 3 and activation procedure 4.Stabilization operation 3 is under aerobic conditions to carry out aeration agitation.Among the present invention, contain in active sludge, therefore must carry out aeration agitation because solvability and/or suspended organism are adsorbed.Preferably carry out continuously (comprise temporary transient discontinuous) aeration agitation not become the anaerobic limit.Carrying out around-the clock aeration in the present embodiment handles.
In activation procedure 4, the active sludge that will send from stabilization operation 3 contacts mixing with the stripping composition of at least a packing material 6 containing Humus, stripping property silica, stripping property silica precursor.Packing material 6 can be pre-charged with, and also can supply with from the outside.Figure 1 shows that packing material 6 fillings are in the example of the inside of activation procedure 4.Under the situation of outside supply, packing material 6 can use with the form of dissolution fluid.
Humus among the present invention can use natural or artificial Humus.
In addition, the stripping property silica that uses among the present invention can use clay mineral or blast-furnace slag etc. are dissolved in the liquid that contains silica that acid or alkali obtains, silicon sol etc.
In addition, as stripping property silica precursor can use in water stripping easily active silica, contain the vulcanicity pumice of silica etc.
As packing material, can use in Humus, to mix to add at least a inorganics of from silicate, magnesium salts, aluminium salt, calcium salt, selecting, use tackiness agent to carry out the particulate state packing material that granulating is made.Coating of particles can be any one shapes such as cylindrical, corner post shape, disc.Identical with particle, also can use powdery, granulous weighting material.
Active sludge circulates between stabilization operation 3 and activation procedure 4, can circulate continuously, also can intermittently circulate.The active sludge that is activated stabilization in activation stabilization system 5 is sent back in the above-mentioned contact absorption process 1, carries out above-mentioned processing.
The excess sludge that is produced by organic decomposition is taken out from activation stabilization system 5, dewaters.Carry out fermentative processing etc. after the dehydration, can make compound manure and soil improvement material.
Embodiment
Below utilize embodiment to further describe the present invention, but this embodiment does not limit the present invention.
(1) test sample
The following water that uses BOD 250mg/ liter, SS150mg/ liter is as waste water.
(2) test conditions
The condition of each treatment process is as shown in table 1 below.
| Condition | |
| | 5 hours residence times, continuous aeration |
| Solid- | The gravity settling |
| Stabilization operation | |
| 3 | Continuous aeration stirred 24 |
| Activation procedure | |
| 4 | Use " TOYOROZAI " of Japan BIOREA CTOR society system |
Use above-mentioned test sample, under condition shown in the table 1, carry out waste water by treatment process shown in Figure 1 and handle continuously.
As a result, the BOD for the treatment of water is below 5mg/ rises, and SS is below 55mg/ rises.
In addition, the mud of getting in the contact absorption process 1 places the 500ml beaker, confirms that the aggegation adsorptivity of mud and throw out form ability, have good aggegation adsorptivity and throw out as can be known and form ability.
For comparing, be not provided with the treatment process of activation procedure 4, the mud of getting in the contact absorption process 1 same as described above places the 500ml beaker, confirms that the aggegation adsorptivity of mud and throw out form ability.It found that, compares with the present invention, and it is relatively poor that the aggegation adsorptivity of mud and throw out form ability.
Claims (6)
1. method of wastewater treatment, it is characterized in that forming by following operation: will contain organic waste water contact with active sludge the organism that makes in the waste water be adsorbed the contact absorption process that contains and, will from this contact liquid separation that absorption process obtains become absorption contain the treating water that organic active sludge and organism removed in fact solid-liquid separation process and, with part or all of absorption contain by this solid-liquid separation process separate the organic active sludge that obtains import with this active sludge activate stabilization the activation stabilization system operation and, the active sludge that will be activated stabilization in this activates stabilization system is sent the operation of above-mentioned contact absorption process back to, this activation stabilization system is made up of stabilization operation and activation procedure, the stabilization operation is under aerobic conditions to carry out aeration agitation, and activation procedure is with active sludge and contains Humus, the stripping property silica, the stripping composition of at least a packing material in the stripping property silica precursor contacts mixing.
2. the method for wastewater treatment of record in the claim 1 is characterized in that active sludge circulates between aforementioned stable chemical industry preface and activation procedure.
3. the method for wastewater treatment of record in the claim 1 is characterized in that Humus wherein is natural or the artificial Humus.
4. the method for wastewater treatment of record in the claim 1 is characterized in that stripping property silica wherein is for to be dissolved in liquid that contains silica or the silicon sol that obtains in acid or the alkali with clay mineral or blast-furnace slag etc.
5. the method for wastewater treatment of record in the claim 1 is characterized in that, wherein stripping property silica precursor is the active silica of easy stripping in water or the vulcanicity pumice that contains silica.
6. the method for wastewater treatment of each record among the claim 1-5; it is characterized in that; packing material wherein is to mix to add at least a inorganics of selecting in Humus from silicate, magnesium salts, aluminium salt, calcium salt, uses tackiness agent to carry out the particulate state weighting agent that granulating is made.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP206491/1995 | 1995-07-20 | ||
| JP206491/95 | 1995-07-20 | ||
| JP7206491A JPH0929280A (en) | 1995-07-20 | 1995-07-20 | Wastewater treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1159429A true CN1159429A (en) | 1997-09-17 |
| CN1076323C CN1076323C (en) | 2001-12-19 |
Family
ID=16524258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96110674A Expired - Fee Related CN1076323C (en) | 1995-07-20 | 1996-07-19 | Sewage treating method |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPH0929280A (en) |
| KR (1) | KR0170038B1 (en) |
| CN (1) | CN1076323C (en) |
| MY (1) | MY122849A (en) |
| SG (1) | SG63648A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863597A (en) * | 2010-06-28 | 2010-10-20 | 北京纬纶华业环保科技股份有限公司 | High ammonia nitrogen sewage processing method |
| CN101389572B (en) * | 2006-02-23 | 2011-04-13 | 旭化成化学株式会社 | Method of treating wastewater |
| CN102939267A (en) * | 2010-05-28 | 2013-02-20 | 艺康美国股份有限公司 | Improvement of activated sludge process in wastewater treatment |
| CN102963976A (en) * | 2011-09-01 | 2013-03-13 | 株式会社水环境研究所 | Organic wastewater processing method and organic wastewater processing system |
| CN107915377A (en) * | 2017-12-12 | 2018-04-17 | 涂宇轩 | City domestic sewage processing method |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000072333A (en) * | 2000-08-29 | 2000-12-05 | 유현숙 | Wastewater Treatment Method by Corrosion of Organics |
| KR20020031958A (en) * | 2000-10-25 | 2002-05-03 | 김일선 | Process for Preparing a Bio-activating Water for Organism |
| KR20020040125A (en) * | 2000-11-23 | 2002-05-30 | 박명선 | The Method and Apparatus of Biological High Efficiency Wastewater Treatment Using the Contacting Media for Activated Sludge |
| SG185044A1 (en) * | 2010-04-26 | 2012-11-29 | Ryozo Irie | Wastewater processing method, system, and method for measuring pollutant-decomposition activity |
| JP2014000495A (en) * | 2012-06-15 | 2014-01-09 | Universal Engineering Co Ltd | Sewage treatment apparatus, and sewage treatment method using the same |
| JP6184541B2 (en) * | 2016-02-19 | 2017-08-23 | ヒューマスアクア株式会社 | Sewage treatment apparatus and sewage treatment method using the same |
-
1995
- 1995-07-20 JP JP7206491A patent/JPH0929280A/en active Pending
- 1995-12-05 KR KR1019950046688A patent/KR0170038B1/en not_active IP Right Cessation
-
1996
- 1996-05-08 MY MYPI9601733 patent/MY122849A/en unknown
- 1996-05-28 SG SG1996009906A patent/SG63648A1/en unknown
- 1996-07-19 CN CN96110674A patent/CN1076323C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101389572B (en) * | 2006-02-23 | 2011-04-13 | 旭化成化学株式会社 | Method of treating wastewater |
| CN102939267A (en) * | 2010-05-28 | 2013-02-20 | 艺康美国股份有限公司 | Improvement of activated sludge process in wastewater treatment |
| CN105502642A (en) * | 2010-05-28 | 2016-04-20 | 艺康美国股份有限公司 | Improved activated sludge process in wastewater treatment |
| CN101863597A (en) * | 2010-06-28 | 2010-10-20 | 北京纬纶华业环保科技股份有限公司 | High ammonia nitrogen sewage processing method |
| CN101863597B (en) * | 2010-06-28 | 2013-04-03 | 北京纬纶华业环保科技股份有限公司 | High ammonia nitrogen sewage processing method |
| CN102963976A (en) * | 2011-09-01 | 2013-03-13 | 株式会社水环境研究所 | Organic wastewater processing method and organic wastewater processing system |
| CN107915377A (en) * | 2017-12-12 | 2018-04-17 | 涂宇轩 | City domestic sewage processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR970006199A (en) | 1997-02-19 |
| JPH0929280A (en) | 1997-02-04 |
| SG63648A1 (en) | 1999-03-30 |
| CN1076323C (en) | 2001-12-19 |
| KR0170038B1 (en) | 1999-02-01 |
| MY122849A (en) | 2006-05-31 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20011219 Termination date: 20150719 |
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| EXPY | Termination of patent right or utility model |