CN205933394U - In put that oxygen nitrifies, both ends anoxic denitrification denitrification device - Google Patents
In put that oxygen nitrifies, both ends anoxic denitrification denitrification device Download PDFInfo
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- CN205933394U CN205933394U CN201620837094.2U CN201620837094U CN205933394U CN 205933394 U CN205933394 U CN 205933394U CN 201620837094 U CN201620837094 U CN 201620837094U CN 205933394 U CN205933394 U CN 205933394U
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- denitrification
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Abstract
The utility model discloses an in put that oxygen nitrifies, both ends anoxic denitrification denitrification device, the device nitrifies filtering pond, back end anoxic denitrification filtering pond, clean water basin by anterior segment anoxic denitrification filtering pond, middle pond, the good oxygen in middle section to establish ties the both ends denitrogenation system and program autonomous system who constitutes in proper order and constitute. The utility model is suitable for an all higher municipal sewage and the industrial wastewater treatment of kai shi nitrogen concentration and BOD5 concentration, both make full use of the organic matter carbon source of former aquatic, overcome traditional device again and must nitrify under the liquid reflux ratio condition the not enough of operation at the height, enable sewage in addition and reach degree of depth denitrogenation purpose, have that the investment cost is economized, the working costs low grade is showing characteristics concurrently.
Description
Technical field
The utility model belongs to water-treatment technology field and in particular to putting aerobic nitrification, two ends anoxic denitrification in one kind
Nitrogen rejection facility is it is adaptable to kelvin nitrogen concentration and BOD5The all higher municipal wastewater of concentration and Industrial Wastewater Treatment.
Background technology
The emphasis of water pollution control is administered from simple Organic Pollution and is turned to the richness that the nutrients such as nitrogen cause
The research of nutrient laden problem, the advanced nitrogen of sewage has become difficult point and core.Sewage can according to different carbon-nitrogen ratio scopes
It is divided into three types sewage：Specifically include first kind sewage（0≤BOD5/TN<1）, Equations of The Second Kind sewage（1≤BOD5/TN<3）、
3rd class sewage（3≤BOD5/TN）.Traditional biofilter denitrification process and device include pre-denitrification and denitrogenation biological filter
With rear-mounted denitrification denitrogenation biological filter.During traditional wastewater is processed, first kind sewage mainly adopts rear-mounted denitrification denitrification organisms
Filter tank, Equations of The Second Kind sewage and the 3rd class sewage mainly adopt pre-denitrification and denitrogenation biological filter.
The leading portion anaerobic environment of Prepositive denitrification bio-filter can improve the biodegradability of sewage, can make full use of in raw water
Denitrifying carbon source.Because the nitrification of this technique occurs, before denitrification, therefore to arrange nitrification liquid return-flow system, and then
The nitrate of back segment is made to be back to leading portion denitrification zone.The engineering practice of a large amount of companies and studying for a long period of time shows：This technique is triumphant
The drawbacks of have more in the higher municipal wastewater of family name's nitrogen concentration or Industrial Wastewater Treatment：On the one hand this technique is extremely difficult to depth
Denitrogenation purpose（Water environment quality standard, TN≤5mg/L）；On the other hand, this technique must adopt high mixed liquid recycle ratio,
Can there are a lot of drawbacks, such as in Equations of The Second Kind, the municipal wastewater of the 3rd class or industrial wastewater, typically first in high nitrification reflux ratio
The denitrification section of level need to mend throwing denitrifying carbon source, due to kjeldahl nitrogen（Organic nitrogen and ammonia nitrogen）Concentration would generally be higher than 45mg/L,
When making water outlet total nitrogen be less than 15mg/L, mixed liquid recycle ratio then can be up to 200% ~ 1300%（Kelvin nitrogen concentration is higher, and nitrification liquid returns
Stream ratio is then higher）.There is shortcoming in high mixed liquid recycle ratio：1. high reflux ratio then means the chi of the structures of the same time of staying
Very little, backwash blower fan electric power, Aeration fan electric power etc. are multiplied, and control very not for investment and operating cost
Profit；2. high reflux ratio means that can carry more dissolved oxygens enters denitrification filter pool, and the rising of dissolved oxygen not only can seriously press down
Denitrification processed, and reduce the removal of carbon and nitrogen efficiency of sewage, this time filter material layer can form aerobic-anaerobic-anaerobic reaction area,
Aerobic microbiological can consume many biodegradable carbon sources, and this just undoubtedly can increase the dosage of denitrification section carbon source, and then
Dramatically increase the processing cost of sewage.
Therefore, exploitation one kind is intended to can make full use of in raw water and has degradation of organic substances carbon source, is avoided that high nitrification liquid again
Reflux ratio, makes sewage reach the new technology of advanced nitrogen purpose simultaneously and device will seem and be highly desirable to.
Utility model content
The utility model purpose is to provide in one kind to put aerobic nitrification, successful gram of two ends anoxic denitrification filter tank nitrogen rejection facility
Take disadvantages described above.
For achieving the above object, the utility model provides in one kind and puts aerobic nitrification, two ends anoxic denitrification filter apparatus,
Mainly by taking off that leading portion anoxic denitrification filter tank, stage casing aerobic nitrification filter tank, back segment anoxic denitrification filter tank are sequentially connected in series
Nitrogen system and program robot control system(RCS) constitute it is characterised in that：Set between leading portion anoxic denitrification filter tank and stage casing aerobic nitrification filter tank
By the nitrification liquid return-flow system being made up of reflux pump and reflux line；Leading portion anoxic denitrification filter tank, stage casing aerobic nitrification filter tank,
It is provided with the water backwashing system being made up of backwash pump and backwash wash water pipeline between back segment anoxic denitrification filter tank and clear water reserviors；
Described back segment anoxic denitrification filter tank system also includes carbon source chemicals dosing plant；Described program robot control system(RCS) also can be according to water inlet
Pollutant levels and the carbon source chemical feeding quantity in carbon-nitrogen ratio adjust automatically reflux ratio and anoxic denitrification filter tank；Described leading portion anoxic
Denitrification filter pool, stage casing aerobic nitrification filter tank, back segment anoxic denitrification filter tank are returned with aeration and backwashing system, nitrification liquid respectively
Streaming system cooperation is connected.
Leading portion anoxic denitrification filter tank, stage casing aerobic nitrification filter tank, back segment anoxic denitrification filter tank are respectively by water distributing area, anti-
Answer area, clear water zone, outlet canal to constitute, filter and filter plate are installed, thereon for supporting layer and haydite layer in water distributing area.
Leading portion anoxic denitrification filter tank, stage casing aerobic nitrification filter tank, back segment anoxic denitrification filter tank also include backwash system
System, backwashing system includes backwashing blower fan, backwash pump, water distribution and gas distributing pipeline；Stage casing aerobic nitrification filter tank also includes
Aerating system, aerating system is made up of air blast, air pipe line, control valve, single-hole membrane aerator, online dissolved oxygen etc.；Institute
State backwash blower fan and backwash pump is connected with program robot control system(RCS).
Online total nitrogen and kjeldahl nitrogen measuring instrument, online COD prison are set in leading portion anoxic denitrification bacteria filter system
Survey instrument, online nitrate nitrogen measuring instrument, online dissolved oxygen monitor table be set in the aerobic nitrification filter tank system water outlet of stage casing,
Water inlet end setting denitrifying carbon source chemicals dosing plant in back segment anoxic denitrification filter tank system；Described online monitoring instrument data passes
The program robot control system(RCS) of delivering to is analyzed, judges, program robot control system(RCS) passes through the water inlet pollutant levels of analysis, carbon-nitrogen ratio certainly
The dynamic aerating system oxygen-supplying amount controlling mixed liquid recycle ratio and stage casing aerobic nitrification filter tank, program robot control system(RCS) passes through the nitre collected
State values of nitrogen might automatically controls the chemical feeding quantity of denitrifying carbon source.
Brief description
Fig. 1 is to put aerobic nitrification, two ends anoxic denitrification filter tank nitrogen rejection facility structural representation in the utility model one kind.
Specific embodiment
1st, lift water pump, 2, wastewater influent pipeline, 3, water distributing area, 4, supporting layer, 5, haydite layer, 6, clear water zone, 7, water outlet
Canal, 8, leading portion anoxic denitrification filter tank, 9, stage casing aerobic nitrification filter tank, 10, intermediate pool, 11, rear end anoxic denitrification filter tank,
12nd, clear water reserviors, 13, outlet pipe, 14, strainer head, 15, filter plate, 16, carbon source dosing system, 17, nitrification liquid reflux pump, 18, nitre
Change liquid reflux line, 19, backwash pump, 20, backwash water inlet pipe, 21, backwash inlet valve, 22, backwash blower fan,
23rd, backwash air inlet pipe, 24, backwash air intake valve, 25, aeration blower, 26, air administrative, 27, air control valve, 28,
Single-hole membrane aerator, 29, online kjeldahl nitrogen, total nitrogen and COD measuring instrument, 30, online flowmeter, 31, control cable, 32,
Line nitrate nitrogen measuring instrument, 33, online dissolved oxygen monitor table, 34, program robot control system(RCS), 35, backwash flowing water Valve,
36th, backwash outlet conduit.
Specific embodiment
1 the utility model is described in further detail below in conjunction with the accompanying drawings.
The utility model provides in one kind and puts aerobic nitrification, two ends anoxic denitrification filter tank nitrogen rejection facility, mainly by leading portion
Anoxic denitrification filter tank（8）, stage casing aerobic nitrification filter tank（9）, intermediate pool（10）, back segment anoxic denitrification filter tank（11）, clear
Pond（12）The denitrification system being sequentially connected in series and program robot control system(RCS) constitute it is characterised in that：Leading portion anoxic denitrification is filtered
Pond（8）And between the pond of stage casing（10）It is provided with by reflux pump（17）And reflux line（18）The nitrification liquid return-flow system of composition；Leading portion
Anoxic denitrification filter tank（8）, stage casing aerobic nitrification filter tank（9）, back segment anoxic denitrification filter tank（11）And between clear water reserviors（12）If
Have by backwash pump（19）With backwash wash water pipeline（20）The water backwashing system of composition；Described back segment anoxic denitrification filter
Cell system also includes carbon source chemicals dosing plant（16）；Described program robot control system(RCS)（34）Also can be according to water inlet pollutant levels and carbon
Nitrogen ratio adjust automatically reflux ratio and the carbon source chemical feeding quantity in anoxic denitrification filter tank；Described leading portion anoxic denitrification filter tank（8）、
Stage casing aerobic nitrification filter tank（9）, back segment anoxic denitrification filter tank（11）Respectively with aeration and backwashing system, nitrification liquid backflow system
Under unified central planning conjunction is connected.
Leading portion anoxic denitrification filter tank（8）, stage casing aerobic nitrification filter tank（9）, back segment anoxic denitrification filter tank（11）Respectively
By water distributing area（3）, supporting layer（4）Haydite reaction zone（5）, clear water zone（6）, outlet canal（7）Constitute, water distributing area（3）Inside it is provided with
Filter（14）And filter plate（15）, thereon for supporting layer（4）With haydite layer reaction zone（5）.
Leading portion anoxic denitrification filter tank（8）, stage casing aerobic nitrification filter tank（9）, back segment anoxic denitrification filter tank（11）Also wrap
Include backwashing system, backwashing system includes backwashing blower fan（22）, backwash pump（19）, water distribution pipe（20）And gas distribution pipe
Road（23）；Stage casing aerobic nitrification filter tank（9）Also include aerating system, aerating system is by aeration blower（25）, air pipe line
（26）, control valve（27）, single-hole membrane aerator（28）, online dissolved oxygen instrument（33）Deng composition；Described backwash blower fan（22）
And backwash pump（19）With program robot control system(RCS)（34）Connect.
In leading portion anoxic denitrification biofilter（8）Online COD, kjeldahl nitrogen and total nitrogen measuring instrument are set in system
（29）, stage casing aerobic nitrification filter tank（9）Online nitrate nitrogen measuring instrument is set in system water outlet（32）, the monitoring of online dissolved oxygen
Instrument（33）, back segment anoxic denitrification filter tank system（11）Middle water inlet end arranges denitrifying carbon source chemicals dosing plant（16）；Described
Online monitoring instrument data is sent to program robot control system(RCS)（34）It is analyzed, judges, program robot control system(RCS) passes through entering of analysis
Water pollutant concentration, carbon-nitrogen ratio automatically control mixed liquid recycle ratio and the aerating system oxygen-supplying amount in stage casing aerobic nitrification filter tank,
Program robot control system(RCS) automatically controls the chemical feeding quantity of denitrifying carbon source by the nitrate nitrogen value collected.
In sewage, Approach of Removal of Nitrogen mainly includes the leading portion denitrification denitrogenation making full use of organic matter carbon source in treatment sewage
Denitrification denitrogenation process in filter tank and the denitrification denitrogenation mistake requiring supplementation with the back segment denitrification denitrogenation filter tank adding carbon source
Journey two parts, its device sewage treatment step is：
（1）Raw water or the treatment sewage through pre-processing are mixed with the backflow nitrification liquid of intermediate pool first, then altogether
With from leading portion denitrification bio-filter（8）Inlet channel（2）Sequentially enter leading portion denitrification bio-filter（8）, water distributing area
（3）, supporting layer（4）, haydite reaction zone（5）, anoxic denitrification filter tank（8）In haydite apposition growth a large amount of micro- lifes of denitrification
Thing, sewage is mainly in haydite reaction zone（5）Complete part denitrogenation and major part removes carbon process, simultaneously the most of suspension in sewage
Thing is trapped within biological ceramic particle layer（5）Space in, through biological ceramic particle layer（5）Water after degraded is through clear water zone（6）, outlet canal
（7）After enter outlet conduit（2）, gravity flow entrance stage casing aerobic nitrification filter tank（9）.Wherein leading portion anoxic denitrification filter tank system
Operating condition is controlled by the program automatic control specially developed（34）According to（29）、（30）、（32）The online monitoring data recording, passes through
Program automatic control controls（34）Carbon source data, carbon-nitrogen ratio and the flow of inlet water Data Control cable collected（31）To adjust nitrification
Liquid reflux pump（17）Backflow water yield, make reflux pump（17）Just satisfaction makes full use of in raw water the nitrification liquid backflow water yield of supply
Carbon source carries out denitrogenation requirement, and the minimum mixed liquid recycle ratio of described control can both fully ensure that nearly all biodegradable carbon source
Leading portion denitrification process is degraded, and reduces leading portion denitrification filter pool as far as possible（8）Water inlet dissolved oxygen, reduce energy
Consumption, improves denitrification efficiency.
（2）Sewage after processing through leading portion denitrification enters back into stage casing aerobic nitrification biofilter（9）, and pass through water distributing area
（3）, supporting layer（4）Enter haydite reaction zone（5）, stage casing aerobic nitrification biofilter（9）In haydite apposition growth in a large number
Aerobic nitrification microorganism, mainly completes the nitrifying process process of ammonia nitrogen, through biological ceramic particle layer（5）Water after degraded is through clear water zone
（6）, outlet canal（7）After enter outlet conduit（2）, gravity flow entrance intermediate pool（10）, intermediate pool（10）Part water by return
Stream pump（17）And through return duct（18）It is back to leading portion anoxic denitrification filter tank（8）, it is anti-that another part gravity flow enters rear end anoxic
In nitrification filter tank.The operating condition of stage casing aerobic nitrification filter tank system is controlled by the program automatic control specially developed（34）According to online
Kjeldahl nitrogen, total nitrogen and COD measuring instrument（29）, online flowmeter（30）, online dissolved oxygen monitor table（33）Record is online
Monitoring Data, is controlled by program automatic control（34）The kelvin nitrogen concentration collected and flow of inlet water Data Control cable（31）To adjust
Aeration fan（25）Blower fan amount, make Aeration fan（25）The air quantity amount of supply meets the premise that stage casing nitrifies service requirement just
Under farthest save power consumption.
（3）Sewage flows through back segment anoxic denitrification filter tank（11）During system, approach water distributing area（3）, supporting layer（4）, haydite
Reaction zone（5）, clear water zone（6）, outlet canal（7）, haydite reaction zone（5）Apposition growth substantial amounts of denitrifying microorganism, program
Robot control system(RCS)（34）According to online nitrate nitrogen monitor（32）The nitrate nitrogen data collected automatically controls carbon source throwing device（16）,
Make effluent nitrate-nitrogen and the carbon source that adds just meets the requirement of advanced nitrogen, and then ensure optimal carbon source dosage and water outlet
Water quality, through back segment anoxic denitrification filter tank（11）The sewage self-flowing that system is handled well enters clear water reserviors（12）, clear water reserviors and each filter
It is provided with by backwash pump between pond（19）And Backwash pipeline（20）The backwashing system of composition, clear water reserviors（12）Water outlet is through water outlet
Pipe（13）Enter and subsequently disinfect.
（4）Periodically to leading portion anoxic denitrification filter tank（8）, stage casing aerobic nitrification filter tank（9）, back segment anoxic denitrification filter tank
（11）Backwashed, backwash adopts " fast rainfall position+combined water and air backwash " mode, water discharging valve is passed through in backwash draining
（35）Enter Buffer Pool with drainage pipeline（36）, keep the high treatment capacity of biofilter.
The utility model can make full use of the organic matter in sewage, and overcoming conventional apparatus must be in high mixed liquid recycle ratio
Under the conditions of the deficiency run, and sewage can be made to reach advanced nitrogen（TN≤5mg/L）Purpose, anti-load impact ability is higher,
There is great application value.
Above-described embodiment is only that technology design of the present utility model and feature are described, its object is to allow and is familiar with technique
Personage will appreciate that content of the present utility model and implement according to this, protection model of the present utility model can not be limited with this
Enclose.All equivalence changes made according to the utility model Spirit Essence or modification, all should cover of the present utility model and protect
Within the scope of.
Claims (4)
1. in one kind, put aerobic nitrification, two ends anoxic denitrification nitrogen rejection facility, mainly good by leading portion anoxic denitrification filter tank, stage casing
Denitrification system and program automatic control that oxygen nitrification filter tank, intermediate pool, back segment anoxic denitrification filter tank, clear water reserviors are sequentially connected in series
System constitutes the denitrification system that is sequentially connected in series and program robot control system(RCS) is constituted it is characterised in that：Leading portion anoxic denitrification is filtered
It is provided with the nitrification liquid return-flow system being made up of reflux pump and reflux line between pond and stage casing pond；Leading portion anoxic denitrification filter tank,
It is provided with by backwash pump and backwashing water pipeline group between stage casing aerobic nitrification filter tank, back segment anoxic denitrification filter tank and clear water reserviors
The water backwashing system becoming；Described back segment anoxic denitrification filter tank system also includes carbon source chemicals dosing plant；Described program is certainly
Control system also can add according to the carbon source of water inlet pollutant levels and carbon-nitrogen ratio adjust automatically reflux ratio and anoxic denitrification filter tank
Dose；Described leading portion anoxic denitrification filter tank, stage casing aerobic nitrification filter tank, back segment anoxic denitrification filter tank respectively with aeration and
Backwashing system, the cooperation of nitrification liquid return-flow system are connected.
2. as claimed in claim 1 one kind in put aerobic nitrification, two ends anoxic denitrification nitrogen rejection facility it is characterised in that：Before
Section anoxic denitrification filter tank, stage casing aerobic nitrification filter tank, back segment anoxic denitrification filter tank are respectively by water distributing area, supporting layer, haydite
Layer reaction zone, clear water zone, outlet canal are constituted, and are provided with strainer head and filter plate, thereon for supporting layer and haydite layer in water distributing area
Reaction zone.
3. as claimed in claim 1 one kind in put aerobic nitrification, two ends anoxic denitrification nitrogen rejection facility it is characterised in that：Before
Section anoxic denitrification filter tank, stage casing aerobic nitrification filter tank, back segment anoxic denitrification filter tank also include backwashing system, backwash system
System includes backwashing blower fan, backwash pump, water distribution and gas distributing pipeline；Stage casing aerobic nitrification filter tank also includes aerating system, exposes
Gas system is made up of air blast, air pipe line, control valve, single-hole membrane aerator, online dissolved oxygen etc.；Described backwash blower fan
It is connected with program robot control system(RCS) with backwash pump.
4. as claimed in claim 1 one kind in put aerobic nitrification, two ends anoxic denitrification nitrogen rejection facility it is characterised in that：?
Online COD, kjeldahl nitrogen and total nitrogen measuring instrument, online flowmeter, stage casing are set in leading portion anoxic denitrification bacteria filter system
Online nitrate nitrogen measuring instrument, online dissolved oxygen monitor table are set in aerobic nitrification filter tank system water outlet, and back segment anoxic is anti-
Water inlet end setting denitrifying carbon source chemicals dosing plant in nitrification filter tank system；Described online monitoring instrument data is sent to program certainly
Control system is analyzed, judges, program robot control system(RCS) automatically controls nitrification by the water inlet pollutant levels of analysis, carbon-nitrogen ratio
Liquid reflux ratio and the aerating system oxygen-supplying amount in stage casing aerobic nitrification filter tank, the nitrate nitrogen value that program robot control system(RCS) is passed through to collect is automatic
Control the chemical feeding quantity of denitrifying carbon source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620837094.2U CN205933394U (en) | 2016-08-04 | 2016-08-04 | In put that oxygen nitrifies, both ends anoxic denitrification denitrification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620837094.2U CN205933394U (en) | 2016-08-04 | 2016-08-04 | In put that oxygen nitrifies, both ends anoxic denitrification denitrification device |
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| Publication Number | Publication Date |
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| CN205933394U true CN205933394U (en) | 2017-02-08 |
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| CN201620837094.2U Active CN205933394U (en) | 2016-08-04 | 2016-08-04 | In put that oxygen nitrifies, both ends anoxic denitrification denitrification device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115916A (en) * | 2016-08-04 | 2016-11-16 | 安徽华骐环保科技股份有限公司 | One is put aerobic nitrification, two ends anoxic denitrification filter tank technique and device thereof |
| CN110683642A (en) * | 2019-10-10 | 2020-01-14 | 中冶华天工程技术有限公司 | Biological denitrification method based on automatic control |
-
2016
- 2016-08-04 CN CN201620837094.2U patent/CN205933394U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115916A (en) * | 2016-08-04 | 2016-11-16 | 安徽华骐环保科技股份有限公司 | One is put aerobic nitrification, two ends anoxic denitrification filter tank technique and device thereof |
| CN110683642A (en) * | 2019-10-10 | 2020-01-14 | 中冶华天工程技术有限公司 | Biological denitrification method based on automatic control |
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