CN109851168A - A kind of A2The improvement of/O technique - Google Patents
A kind of A2The improvement of/O technique Download PDFInfo
- Publication number
- CN109851168A CN109851168A CN201910108354.0A CN201910108354A CN109851168A CN 109851168 A CN109851168 A CN 109851168A CN 201910108354 A CN201910108354 A CN 201910108354A CN 109851168 A CN109851168 A CN 109851168A
- Authority
- CN
- China
- Prior art keywords
- pond
- ammonia
- lattice
- water
- tank
- 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.)
- Granted
Links
Abstract
The invention discloses a kind of A2The improvement of/O technique is made of anaerobic pond, anoxic pond, aerobic tank, secondary settling tank, recoil pond, medium sediment pool, suction ammonia pond, equalization pond, the heavy pond of nitre, nitrification tank and buffer pool；The suction ammonia pond is two lattice or more, and every lattice are respectively independent；Suction-operated using zeolite to ammonia nitrogen, ammonia nitrogen absorption in sewage is come out, individually nitrifies and regenerate zeolite, so that nitrifying process independently carries out, carbon source loss is avoided, so that the utilization efficiency of carbon source is improved, simultaneously, the denitrification percent being difficult to improve by reflux ratio limitation is avoided, so that denitrification percent is improved.
Description
Technical field
The present invention relates to a kind of sewage disposal system more particularly to a kind of sewage treatment A2/ O technique.
Background technique
A2/ O technique is the classical technique of sewage treatment, and Fig. 2 of Figure of description is shown in process flow.The technological advantage is very
It is more, but also have deficiency.Most important deficiency has at 3 points: first is that both denitrogenation and dephosphorization are it is not possible that while optimal；First is that denitrogenation
Removal rate is difficult to greatly improve again, first is that carbon source is nervous.
For this purpose, technical staff is to A2/ O technique, has done a large amount of improvement, there is preposition denitration A2/ O, inversion A2/O、
The techniques such as UCT, Phoredox.
This patent zeolite adsorbs the characteristic of ammonia nitrogen, to A2A kind of improvement has also been made in/O technique.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of A2The improvement of/O technique, it is characterised in that: by anaerobic pond,
Anoxic pond, secondary settling tank, recoil pond, medium sediment pool, inhales ammonia pond, equalization pond, the heavy pond of nitre, nitrification tank and buffer pool composition at aerobic tank；Institute
It states and inhales ammonia pond for more than two lattice, every lattice are respectively independent；Sewage is run according to the following steps:
Step 1, sewage enter anaerobic pond and carry out corresponding biochemical process；After reacted, the mixed liquor in anaerobic pond enters
Anoxic pond carries out corresponding biochemical process；After reacted, the medium sediment pool that is mixed into anoxic pond is separated by solid-liquid separation；
Step 2, the water that medium sediment pool is isolated, into the lattice inhaled in ammonia pond；The mud that medium sediment pool is isolated, entrance are aerobic
Pond；
Step 3 inhales ammonia Chi Zhongyou zeolite, carries out after zeolite adsorbs ammonia nitrogen into aerobic tank into the water for inhaling ammonia pond；
Step 4, the water outlet ammonia-nitrogen content of ammonia pond water inlet lattice is inhaled in monitoring, when it reaches setting value (i.e. when adsorption saturation),
Stop intaking to this lattice, another lattice water inlet is turned to, to keep the continuous of water inlet；By the water in equalization pond, it is pumped into and inhales in ammonia pond
That lattice of adsorption saturation displace the water of the inside, and the water displaced carries out nitration reaction into nitrification tank, mixed after nitrification
Liquid is closed, after nitre sinks pond separation of solid and liquid, mud reflux, water enters equalization pond, then is pumped into and inhales ammonia pond, circulation is formed, up to inhaling ammonia
Stop recycling after the completion of zeolite regeneration in pond；Then, by the water in pond that recoils, this lattice for inhaling ammonia pond is pumped into, replaces, wash it
In contain glass gall, and enter buffer pool；Enter anoxic pond for glass gall is contained in buffer pool, carries out corresponding biochemical process；It completes again
That raw, displacement, washing lattice, stand for standby use；
Inhaling ammonia pond is two lattice or more, and every lattice successive carries out suction ammonia, regeneration, displacement, washing, spare and inhale being circulated throughout for ammonia again
Journey reaches the result of continuous processing sewage；
Step 5, in step 3 after the water for inhaling ammonia enters aerobic tank, together with the sludge that medium sediment pool is isolated, good
In oxygen pond, aerobic reaction is carried out, mixed liquor enters secondary settling tank and is separated by solid-liquid separation, the water separated, and overflows by recoil pond
Stream discharge, the mud separated, a return anaerobic pond, a part are used as excess sludge discharge system.
Compared with existing treatment process, A2The beneficial effect of/O process modification is: nitrifying process independently being carried out, is avoided
Carbon source loss, so that the utilization efficiency of carbon source is improved, meanwhile, avoid the denitrogenation being difficult to improve by reflux ratio limitation
Rate, so that denitrification percent is improved.
Detailed description of the invention
Fig. 1 is the process flow diagram of the embodiment of the present invention.Fig. 2 is classical A2The flow diagram of/O technique.
Specific embodiment
Embodiment:
The present embodiment, by anaerobic pond 1, anoxic pond 2, aerobic tank 3, secondary settling tank 4, recoil pond 5, in sink 6, inhale ammonia pond 7, current stabilization
Pond 8, the heavy pond 9 of nitre, nitrification tank 10 and buffer pool 11 form；The suction ammonia pond 7 is two lattice or more, and every lattice are respectively independent；Sewage is pressed
Following steps operation:
Step 1, sewage enter anaerobic pond 1 and carry out corresponding biochemical process；In anaerobic pond 1, mainly progress anaerobism is released
The reaction of phosphorus after the sludge that secondary settling tank 4 flows back releases phosphorus herein, is ready for its aerobic phosphorus absorption.After reacted, in anaerobic pond 1
Mixed liquor enter anoxic pond 2 and carry out corresponding biochemical process；In anoxic pond 2, what is be substantially carried out is denitrification denitrogenation reaction,
The nitrate nitrogen come in from buffer pool, using organic carbon source, is reduced to N under the action of denitrifying bacterium2.After reacted, anoxic
The medium sediment pool 6 that is mixed into pond is separated by solid-liquid separation；
Step 2, the water that medium sediment pool 6 is isolated, into the lattice inhaled in ammonia pond 7；The mud that medium sediment pool 6 is isolated enters
Aerobic tank 3；
Step 3, inhale ammonia pond 7 in have zeolite, zeolite has obligate suction-operated to ammonia nitrogen, therefore, into inhale ammonia pond 7 water,
Ammonia nitrogen therein will be adsorbed by zeolite, in this way, realizing the separation of ammonia nitrogen and sewage；Sewage after separating ammonia nitrogen, is entered
Oxygen pond 3；
The water outlet ammonia-nitrogen content of the water inlet of ammonia pond 7 lattice, (the i.e. adsorption saturation when it reaches setting value are inhaled in step 4, monitoring
When), stop intaking to this lattice, another lattice water inlet is turned to, to keep the continuous of water inlet；By the water in equalization pond 8, it is pumped into and inhales ammonia pond
That lattice of adsorption saturation in 7, displace the water of the inside, and the water displaced carries out nitration reaction, nitre into nitrification tank 10
Mixed liquor after change, after nitre sinks the separation of solid and liquid of pond 9, mud reflux, water enters equalization pond 8, then is pumped into and inhales ammonia pond 7, and formation follows
Ring, until stopping recycling after the completion of inhaling the zeolite regeneration in ammonia pond 7；Then, by the water in pond 5 that recoils, it is pumped into this for inhaling ammonia pond 7
Lattice replace, wash therein containing glass gall, and enter buffer pool 11；Enter anoxic pond 2 for glass gall is contained in buffer pool 11, carries out anti-
The Nitrification；Complete that lattice of regeneration, displacement, washing, stand for standby use；
It is a kind of ion-exchange reactions that zeolite, which adsorbs ammonia nitrogen, and there are following balances:
Adsorption process, reaction carry out to the right.After adsorption saturation, when water in equalization pond 8 is introduced suction ammonia pond 7, due to current stabilization
Water in pond 8 comes from nitrification tank 10, and therefore, the water in equalization pond 8 is free of NH4 +, in this way, inhaling the NH in ammonia pond 74 +Concentration will
It reduces, reaction carries out to the left, i.e. NH in zeolite4 +Desorption.The NH of desorption4 +, into after nitrification tank, it is oxidized to NO2 -Or
NO3 -, therefore, the NH in continuous cyclic process, in water4 +Constantly reduce, and the NH in zeolite4 +Then constantly desorb, because
This, zeolite is regenerated.After zeolite regeneration, the water in ammonia pond 7 is inhaled, is become containing glass gall, therefore, devised with recoil pond 5
In water, replaced, wash enter buffer pool 11, in this way, inhale ammonia pond 7 in, both be free of ammonia, also be free of nitre, reached original
State, for next time inhale ammonia get ready.
Inhaling ammonia pond is two lattice or more, and every lattice successive carries out suction ammonia, regeneration, displacement, washing, spare and inhale being circulated throughout for ammonia again
Journey reaches the result of continuous processing sewage；
Step 5, in step 3 after the water for inhaling ammonia enters aerobic tank 3, the sludge that medium sediment pool 6 is isolated together, good
In oxygen pond 3, aerobic reaction is carried out, mixed liquor enters secondary settling tank 4 and is separated by solid-liquid separation, the water separated, by pond 5 of recoiling
Overflow discharge, the mud separated, a return anaerobic pond 1, a part are used as excess sludge discharge system.
Above embodiments are only exemplary embodiment of the present invention, are not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (1)
1. a kind of A2The improvement of/O technique, it is characterised in that: by anaerobic pond, anoxic pond, aerobic tank, secondary settling tank, recoil pond, in sink
Ammonia pond, equalization pond, the heavy pond of nitre, nitrification tank and buffer pool composition are inhaled in pond；The suction ammonia pond is two lattice or more, and every lattice are respectively independent；
Sewage is run according to the following steps:
Step 1, sewage enter anaerobic pond and carry out corresponding biochemical process；After reacted, the mixed liquor in anaerobic pond enters anoxic
Pond carries out corresponding biochemical process；After reacted, the medium sediment pool that is mixed into anoxic pond is separated by solid-liquid separation；
Step 2, the water that medium sediment pool is isolated, into the lattice inhaled in ammonia pond；The mud that medium sediment pool is isolated, into aerobic tank；
Step 3 inhales ammonia Chi Zhongyou zeolite, carries out after zeolite adsorbs ammonia nitrogen into aerobic tank into the water for inhaling ammonia pond；
Step 4, the water outlet ammonia-nitrogen content of ammonia pond water inlet lattice is inhaled in monitoring, when it reaches setting value (i.e. when adsorption saturation), is stopped
It intakes to this lattice, another lattice water inlet is turned to, to keep the continuous of water inlet；By the water in equalization pond, it is pumped into the absorption inhaled in ammonia pond
That lattice of saturation, displace the water of the inside, and the water displaced carries out nitration reaction, the mixing after nitrification into nitrification tank
Liquid, after nitre sinks pond separation of solid and liquid, mud reflux, water enters equalization pond, then is pumped into and inhales ammonia pond, circulation is formed, up to inhaling ammonia pond
Stop recycling after the completion of interior zeolite regeneration；Then, by the water in pond that recoils, this lattice for inhaling ammonia pond are pumped into, displacement, washing are wherein
Contain glass gall, and enter buffer pool；Enter anoxic pond for glass gall is contained in buffer pool, carries out corresponding biochemical process；Completion regeneration,
That lattice of displacement, washing, stand for standby use；
Inhaling ammonia pond is two lattice or more, and every lattice successive carries out suction ammonia, regeneration, displacement, washing, cyclic process that is spare and inhaling ammonia again,
Reach the result of continuous processing sewage；
Step 5, in step 3 after the water for inhaling ammonia enters aerobic tank, together with the sludge that medium sediment pool is isolated, in aerobic tank
In, aerobic reaction is carried out, mixed liquor enters secondary settling tank and is separated by solid-liquid separation, the water separated, by recoil pond overflow row
It puts, the mud separated, a return anaerobic pond, a part is used as excess sludge discharge system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910108354.0A CN109851168B (en) | 2019-02-13 | 2019-02-13 | A2Improvement of/O process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910108354.0A CN109851168B (en) | 2019-02-13 | 2019-02-13 | A2Improvement of/O process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109851168A true CN109851168A (en) | 2019-06-07 |
| CN109851168B CN109851168B (en) | 2022-02-08 |
Family
ID=66897621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910108354.0A Active CN109851168B (en) | 2019-02-13 | 2019-02-13 | A2Improvement of/O process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109851168B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5385947A (en) * | 1977-01-05 | 1978-07-28 | Hitachi Ltd | Method of treating waste liquid containing nitrogen compounds |
| CN1715217A (en) * | 2004-07-02 | 2006-01-04 | 桂林工学院 | Process for removing nitrogen and phosphor from sewage capable of being built by separate periods |
| CN104556572A (en) * | 2014-12-26 | 2015-04-29 | 江苏艾特克环境工程设计研究院有限公司 | Efficient biochemical nitrogen and phosphorus removal method for waste water |
| CN205740686U (en) * | 2016-07-12 | 2016-11-30 | 成都市鑫忠源物资有限责任公司 | A kind of coking wastewater of iron and steel plant processing means |
| CN107381958A (en) * | 2017-08-22 | 2017-11-24 | 轻工业环境保护研究所 | Carbon nitrogen divergence type denitrification process |
-
2019
- 2019-02-13 CN CN201910108354.0A patent/CN109851168B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5385947A (en) * | 1977-01-05 | 1978-07-28 | Hitachi Ltd | Method of treating waste liquid containing nitrogen compounds |
| CN1715217A (en) * | 2004-07-02 | 2006-01-04 | 桂林工学院 | Process for removing nitrogen and phosphor from sewage capable of being built by separate periods |
| CN104556572A (en) * | 2014-12-26 | 2015-04-29 | 江苏艾特克环境工程设计研究院有限公司 | Efficient biochemical nitrogen and phosphorus removal method for waste water |
| CN205740686U (en) * | 2016-07-12 | 2016-11-30 | 成都市鑫忠源物资有限责任公司 | A kind of coking wastewater of iron and steel plant processing means |
| CN107381958A (en) * | 2017-08-22 | 2017-11-24 | 轻工业环境保护研究所 | Carbon nitrogen divergence type denitrification process |
Non-Patent Citations (1)
| Title |
|---|
| 曾永刚、刘艳君、李博主编: "《水污染控制工程》", 30 April 2018, 电子科技大学出版社 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109851168B (en) | 2022-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108483655A (en) | A kind of method of short-cut nitrification and denitrification coupling two-stage autotrophic denitrification advanced nitrogen | |
| CN108862622A (en) | A kind of method of ammonia-containing water denitrogenation | |
| WO2021203800A1 (en) | Vertical high-concentration ammonia nitrogen wastewater treatment device and treatment process | |
| CN107473371A (en) | A kind of utilize adsorbs the method that ammonia nitrogen material reinforcement SBR realizes Stable short-cut nitrosification | |
| CN105753156A (en) | High-standard nitrogen and phosphorus removal method for municipal wastewater | |
| CN108217934B (en) | Low-carbon treatment method and device for low-carbon/nitrogen ratio medium-low concentration wastewater | |
| CN109354347A (en) | A kind of processing method of neomycinsulphate production waste water | |
| CN112850946A (en) | Method for treating coking wastewater by enhanced Fenton oxidation process | |
| CN107381958A (en) | Carbon nitrogen divergence type denitrification process | |
| CN110642478A (en) | Coupled treatment system and method for coking phenol-cyanogen wastewater by biochemical method and physicochemical method | |
| CN106892543A (en) | The method that depth removes Coal Gas Washing Cycling Water nitrate nitrogen | |
| CN106904769B (en) | Method for integrated adsorption and desorption liquid application for removing total nitrogen pollutants in wastewater | |
| Zhang et al. | Polishing of Secondary Effluent by a Two-Stage Vertical-Flow Constructed Wetland. | |
| CN109851168A (en) | A kind of A2The improvement of/O technique | |
| CN110117135B (en) | Garbage leachate treatment method | |
| CN109851169A (en) | A kind of A2The reinforcing of/O technique | |
| CN114988578A (en) | Biological treatment method for toilet sewage | |
| CN108947103B (en) | Low-concentration ammonia nitrogen wastewater denitrification method based on adsorption-regeneration and anaerobic ammonia oxidation | |
| CN210559747U (en) | Industrial heavy metal sewage treatment system | |
| CN109607984A (en) | A kind of high-concentration high-nitrogen sewage treatment process | |
| CN208234620U (en) | A kind of device of efficient process ion exchange regenerant waste liquid | |
| CN109607986B (en) | High-removal-rate nitrogen and phosphorus removal process | |
| CN111807513B (en) | Low-concentration ammonia nitrogen sewage treatment device and treatment method | |
| CN210528697U (en) | Landfill leachate treatment system | |
| CN108217935A (en) | A kind of apparatus and method of efficient process ion exchange regenerant waste liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |