CN106986451B - A kind of denitrification filler and its application method - Google Patents
A kind of denitrification filler and its application method Download PDFInfo
- Publication number
- CN106986451B CN106986451B CN201710414911.2A CN201710414911A CN106986451B CN 106986451 B CN106986451 B CN 106986451B CN 201710414911 A CN201710414911 A CN 201710414911A CN 106986451 B CN106986451 B CN 106986451B
- Authority
- CN
- China
- Prior art keywords
- reactor
- denitrification
- filler
- layer
- partial size
- 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
-
- 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
- C02F3/28—Anaerobic digestion processes
- C02F3/2806—Anaerobic processes using solid supports for microorganisms
-
- 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
- C02F3/28—Anaerobic digestion processes
- C02F3/2813—Anaerobic digestion processes using anaerobic contact processes
-
- 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
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
- C02F2003/003—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms using activated carbon or the like
Abstract
Present invention relates particularly to a kind of denitrification biologic packing material and its application methods.Technical principle of the invention is that denitrification biologic packing material is made by raw material of volcanic rock, zeolite and active carbon, and filler is loaded in adaptation reactor after mixing with certain partial size and ratio；Medicine system is arranged in reactor, and equivalent is added from reactor water inlet place and (is equal to needed for denitrification and measures ratio) removal that organic carbon source is used for nitrate.Filler has porous structure, facilitates the removal for strengthening nitrate.It, which is adapted to reactor, has good denitrification effect.
Description
Technical field
The invention belongs to the application fields of water treatment technology, are related to a kind of denitrification process of waste water, and in particular to a kind of
Denitrification biologic packing material and its methods for making and using same.
Background technique
With the development of industry, increasingly severe the case where water pollution, wherein nitrate pollution accounts for sizable ratio.It is raw
All contain certain nitrogen, especially coal pressure gasification wastewater, coking wastewater, nitrogenous fertilizer waste water in sewage living and certain industrial wastewaters
Deng.A large amount of unprocessed or not appropriately processed various nitrogenous effluents are discharged into rivers, serious destruction can be caused to environment, no
Only polluted drinking water water source also causes the harm of eutrophication to river, lake etc..The existence form multiplicity of Water, including ammonia
Nitrogen, nitrate nitrogen, nitrite nitrogen, organic nitrogen etc..Prior art can all have ammonia nitrogen, nitrite nitrogen, organic nitrogen etc. good
Good removal effect, but it is undesirable to the removal effect of nitrate nitrogen.With azotate pollution problem sharpening increasingly and
The enhancing of Public Environmental Awareness, stringent discharge limitation and standard have all been formulated in more and more countries and regions, to denitrogenation skill
The development of art proposes more urgent requirement.
Since traditional biological process of wastewater treatment such as activated sludge process is main place with carbonaceous organic material and suspended solid
Target is managed, for most sanitary sewages and nitrogenous industrial wastewater, since sewage itself C/N is relatively low, denitrification effect is paid no attention to
Think, water outlet still contains a large amount of nitrate nitrogen.This just promotes people to be transformed conventional activated sludge processes, to mention
The removal rate of high nitrogen.A/O and A2/ O technique is developed by traditional activated sludge process, which denitrification section is arranged
Before system, anti-nitration reaction contains a large amount of nitrate nitrogen using the organic matter in sewage as carbon source in the mixed liquor of aeration tank,
Through inner circulating reflux into anoxic pond, denitrification denitrogenation is carried out in anoxic pond.A/O and A2The nitric efficiency of/O technique is general
Organic matter deficiency causes denitrification efficiency decline to be the main reason for influencing total nitrogen removal in 70% or so, anoxic pond.
Currently, more mature removing nitrate nitrogen technique has physical method, bioanalysis and three kinds of chemical reduction method.Physical method master
There are absorption method, ion-exchange and membrane separation process, but the transfer or concentration of pollutant only has occurred, there is no carry out it
Thoroughly conversion.Chemical catalysis is often used expensive catalyst, severe reaction conditions and the shortcomings that there is catalyst easy in inactivation.
Bioanalysis refers to that anti-nitration reaction occurs under the conditions of microorganism is existing for the electron donor is converted to nitrogen, mesh for nitrate nitrogen
Before have obtained relatively broad application.
Summary of the invention
For the undesirable problem of conventional sewage treatment process denitrification denitrogenation effect, in conjunction with above-mentioned background technique, this hair
It is bright to provide a kind of denitrification filler and its methods for making and using same.The reactor being adapted to the filler includes two kinds of configurations, point
It Wei ZHDN-B1 type and ZHBN-B2 type, in which: ZHDN-B1 type reactor ratio of height to diameter is 0.5 ~ 3, is suitable for processing 10-30mg/
L low concentration nitrogen containing waste water；ZHDN-B2 type reactor ratio of height to diameter contains between 3 ~ 6 suitable for processing 30-80mg/L high concentration
Nitrogen waste water.The present invention is removed in terms of sewage treatment strengthened denitrification, it may also be used for the removal technique of groundwater azotate.
Technical principle of the invention is: mixing dress by the denitrification biologic packing material of raw material of volcanic rock, zeolite and active carbon
It fills in adaptation reactor, after sewage enters reactor, under the action of microorganism, using the carbon source added in water inlet, occurs
Denitrification.Microorganism and nitrate can use volcanic rock, zeolite and the unique porous structure of activity, abundant denitrification,
Facilitate the removal of reinforcing nitrate.
To achieve the above object, the present invention adopts the following technical scheme:
Filler: volcanic rock, zeolite and active carbon are sieved, and the filler of 5-30mm partial size is made.
Application method: volcanic rock, zeolite and active carbon are entered into adaptation with 30 ~ 10:5 ~ 1:5 ~ 1 ratio mixed packing and reacted
In device.
Be adapted to reactor building: reactor Inlet and outlet water is bottom in and top out up-flow, constitutes medicine system equipped with grug feeding jar, applies
Adding carbon source mainly includes the common organic carbon source such as methanol, ethyl alcohol, acetic acid, sodium acetate, glucose；Reactor bottom establishing pool and
Supporting layer, main body reaction zone, that is, packing layer, packing layer can be divided into 2 ~ 5 layers according to the difference of packing material size, and wherein lower layer's partial size is big
Upper layer partial size is small, and filler is distributed in every layer with determining uniform particle sizes, arranges that air scoop, denitrification produce gas by air guide in reactor
Cover is collected, and draws reactor through gas-guide tube, unsmooth inside reactor is caused to block to prevent from being vented.The medicine system of setting,
Equivalent is added from reactor water inlet place and (is equal to needed for denitrification and measures ratio) removal that organic carbon source is used for nitrate.
Processed raw wastewater enters water distributing area through water distribution orifice plate from device bottom, enters packing layer later and carries out biological take off
Nitrogen.The packing layer of different gradation has the function of biofilter simultaneously, can retain the suspended matter in waste water and since biomembrane takes off
Fall the biological sludge to be formed.When the holding filth capacity in packing layer reaches to a certain degree, automated development is carried out to packing layer, is rinsed
Water inlet line is arranged in device bottom (be specifically illustrating and see attached drawing 2), and flushing flow rate is suitably amplified, and is acted on and being removed by sluicing
It is trapped object in packing layer, flushing water is discharged by flushing water discharge tube.
In denitrification process, since nitrate nitrogen is constantly reduced to nitrogen, a large amount of nitrogen can be gathered in deep-bed filter,
These gases can make sewage around altering between medium, enhance contact of the microorganism with water flow in this way, while also improve filtering effect
Rate.But when gathering excessive nitrogen bubble in pond body, it will cause head loss；Gas-guide tube, air scoop is arranged in this equipment
The nitrogen that reaction generates is collected with water seal, influences reaction condition to prevent pneumatosis, reduces water conservancy loss.
The present invention has the following terms feature:
1) filler prepared by is using volcanic rock, zeolite and active carbon as raw material, and cost is relatively low；Filler has unique porous
Structure can make full use of the denitrifying advantage of bioanalysis；
2) medicine system is set, equivalent (being equal to metering ratio needed for denitrification) organic carbon source is added at reactor water inlet and uses
In the removal of nitrate；
3) adaptation reactor carries out biological denitrificaion by setting different gradation packing layer, and a large amount of biologies are retained in reactor
Amount, good waste water treatment effect；
4) it is not necessarily to sludge reflux, also without the worry of sludge bulking, reduces equipment and operating cost；
5) flushing process all automates, and washes away blocked up and aging biomembrane in time, packing layer is avoided to block, and accelerates
Biomembrane updates, and biomembrane is made often to keep higher activity, and maintenance management is convenient；
6) this equipment sets special gas directing system, and hydraulic loss reduces, and hydraulics are preferable；
7) packing layer of different porosities allows solid impurity to penetrate the surface layer of filter bed, gos deep into filler, reaches and entirely fill out
Bed of material depth retains solids；
8) filtrate gradation is respectively set to 5-30mm, from bottom to top layering filling, and lower layer's partial size is big, and upper layer partial size is small, fills out
Material arrangement is more reasonable, and reactor operational effect is more preferable；
9) reactor that two kinds of configurations of ZHDN-B1 and ZHDN-B2 are separately designed for low concentration and high-concentration waste water makes anti-
Answer device use more targeted；
10) ZHDN-B1 type reactor occupied area is larger, but can tire out layer establishment, and every layer of reactor independent operating.
Detailed description of the invention:
Fig. 1 is ZHDN-B1 type reactor elevation；
Fig. 2 is ZHDN-B2 type reactor elevation；
Appended drawing reference:
2. water distribution area of Fig. 1: 1. water inlet pipe, 3. packing area, 4. supernatant distributed area, 5. water outlet 6. rinses water inlet 7.
Rinse 8. grug feeding jars of water outlet
2. water distribution area of Fig. 2: 1. water inlet pipe, 3. packing area, 4. supernatant distributed area, 5. water outlet, 6. gas-guide tube, 7. gas collection
It covers 8. water-sealed drainage bottles 9. and rinses 10. flushing 11. grug feeding jars of water outlet of water inlet.
Specific embodiment:
Embodiment 1
Simulation nitrate sewage is handled using filler and reactor of the invention.By the volcanic rock sieved, boiling
The fillers such as stone and active carbon load supreme 3m according to the mass ratio of 20:1:1, in the ZHDN-B2 type reactor of internal diameter 0.5m, fill out
Material is according to 30mm, 20mm, 15mm, the successively layering filling from bottom to top of the partial size of 10mm, 5mm, with the volcanic rock of partial size, zeolite and
Active carbon is packed into reactor after mixing.The activated sludge tamed is inoculated into reactor, nitre is added with tap water
Sour sodium is configured to the Fluid Dynamics sewage quality that the concentration of nitrate nitrogen is 80mg/L, starts medicine system, by removal 80mg NO3 --
The dosage of N/L adds carbon source methanol, and raw water is squeezed into reactor through peristaltic pump by reactor bottom end, and sewage is in reactor
Hydraulic detention time is 60min, and detection water outlet nitrate nitrogen content is lower than 3mg/L, and removal rate is greater than 95%, and water outlet COD is lower than
15mg/L, removal rate are greater than 95%.It is detected by long-play, stable effluent quality, discharge standard can be reached, monitor number
According to being shown in Table 1:
Table 1 is the monitoring data of embodiment 1
Embodiment 2
Simulation nitrate sewage is handled using filler and reactor of the invention.By the volcanic rock sieved, boiling
The fillers such as stone and active carbon load supreme 3m according to the mass ratio of 30:5:1, in the ZHDN-B2 type reactor of internal diameter 0.75m, fill out
Material is according to 25mm, 20mm, 10mm, the partial size of 5mm successively layering filling from bottom to top, with the volcanic rock, zeolite and activity of partial size
Charcoal is packed into reactor after mixing.The activated sludge tamed is inoculated into reactor, sodium nitrate is added with tap water
The concentration for being configured to nitrate nitrogen is the Fluid Dynamics sewage quality of 80mg/L, starts medicine system, by removal 80mg NO3 --N /L
Dosage add carbon source methanol, raw water is squeezed into reactor through peristaltic pump by reactor bottom end, waterpower of the sewage in reactor
Residence time is 60min, and detection water outlet nitrate nitrogen content is lower than 3mg/L, and removal rate is greater than 95%, and water outlet COD is lower than 15mg/L,
Removal rate is greater than 90%.It is detected by long-play, stable effluent quality, discharge standard can be reached, monitoring data are shown in Table 2:
Table 2 is the monitoring data of embodiment 2
Embodiment 3
Simulation nitrate sewage is handled using filler and reactor of the invention.By the volcanic rock sieved, boiling
The fillers such as stone and active carbon load supreme 3m according to the mass ratio of 30:5:5, in the ZHBN-B2 type reactor of internal diameter 1m, filler
According to 30mm, 25mm, 10mm, the partial size of 5mm successively layering filling from bottom to top, with the volcanic rock, zeolite and active carbon of partial size
It is packed into reactor after mixing.The activated sludge tamed is inoculated into reactor, sodium nitrate is added with tap water and matches
The concentration that nitrate nitrogen is made is the Fluid Dynamics sewage quality of 60mg/L, starts medicine system, by removal 60mg NO3 -- N/L
Dosage adds carbon source methanol, and raw water is squeezed into reactor through peristaltic pump by reactor bottom end, and waterpower of the sewage in reactor is stopped
Staying the time is 45min, and detection water outlet nitrate nitrogen content is lower than 2mg/L, and removal rate is greater than 95%, and water outlet COD is lower than 15mg/L,
Removal rate is greater than 90%.It is detected by long-play, stable effluent quality, discharge standard can be reached, monitoring data are shown in Table 3:
Table 3 is the monitoring data of embodiment 3
Embodiment 4
The volcanic rock that will have been sieved, zeolite are handled to simulation nitrate sewage using filler and reactor of the invention
With the fillers such as active carbon according to the mass ratio of 10:5:5, supreme 1m is loaded, in the ZHDN-B1 type reactor of internal diameter 2m, filler is pressed
According to 15mm, 10mm, 5mm, partial size successively layering filling from bottom to top, volcanic rock, zeolite and the active carbon mixing with partial size is equal
It is packed into reactor after even.The activated sludge tamed is inoculated into reactor, sodium nitrate is added with tap water and is configured to nitre
The concentration of hydrochlorate nitrogen is the Fluid Dynamics sewage quality of 20mg/L, starts medicine system, by removal 20mg NO3 -- N/L dosage is thrown
Add carbon source methanol, raw water is squeezed into reactor through peristaltic pump by reactor bottom end, hydraulic detention time of the sewage in reactor
For 20min, detection water outlet nitrate nitrogen content is lower than 0.5mg/L, and removal rate is greater than 98%, and water outlet COD is lower than 10mg/L, removal rate
Greater than 90%.It is detected by long-play, stable effluent quality, discharge standard can be reached, monitoring data are shown in Table 4:
Table 4 is the monitoring data of embodiment 4
| NO3 -- N(mg/L) | COD(mg/L) | PH value | |
| Water inlet | 20.2 | 78.4 | 7.50 |
| Water outlet | 0.3 | 7.2 | 7.78 |
| Removal rate % | 98.5 | 90.8 | -- |
Embodiment 5
Simulation nitrate sewage is handled using filler and reactor of the invention.By the volcanic rock sieved, boiling
The fillers such as stone and active carbon load supreme 1m according to the mass ratio of 20:3:3, in the ZHDN-B1 type reactor of internal diameter 1m, filler
According to 20mm, the successively layering filling from bottom to top of the partial size of 15mm, 10mm, volcanic rock, zeolite and active carbon with partial size are mixed
It is packed into reactor after uniformly.The activated sludge tamed is inoculated into reactor, sodium nitrate is added with tap water and is configured to
The concentration of nitrate nitrogen is the Fluid Dynamics sewage quality of 25mg/L, starts medicine system, by removal 25mg NO3 -- N/L dosage
Carbon source methanol is added, raw water is squeezed into reactor through peristaltic pump by reactor bottom end, when hydraulic retention of the sewage in reactor
Between be 25min, detection water outlet nitrate nitrogen content be lower than 1mg/L, removal rate be greater than 96%, water outlet COD be lower than 10mg/L, removal rate
Greater than 90%.It is detected by long-play, stable effluent quality, discharge standard can be reached, monitoring data are shown in Table 5:
Table 5 is the monitoring data of embodiment 5
| NO3 -- N(mg/L) | COD(mg/L) | PH value | |
| Water inlet | 24.6 | 98.5 | 7.52 |
| Water outlet | 0.9 | 7.8 | 7.77 |
| Removal rate % | 96.3 | 92.1 | -- |
Claims (3)
1. a kind of application method of denitrification filler, it is characterised in that include the following steps:
Denitrification filler is mixed loaded in adaptation reactor, after sewage enters reactor, under the action of microorganism, is utilized
Denitrification occurs for the carbon source added in water inlet；
The Inlet and outlet water of the adaptation reactor is bottom in and top out up-flow, constitutes medicine system, the carbon source equipped with grug feeding jar
Selected from one of methanol, ethyl alcohol, acetic acid, sodium acetate, glucose or a variety of；
Reactor bottom establishing pool and supporting layer, main body reaction zone, that is, packing layer, packing layer is according to denitrification packing material size
Difference is divided into 4~5 layers, and wherein the big upper layer partial size of lower layer's partial size is small, and the denitrification filler in every layer is with determining uniform particle sizes point
Cloth；
It arranges that air scoop, denitrification produce gas and collected by air scoop in described filler layer, draws reactor through gas-guide tube；Described is anti-
Nitrifying filler includes volcanic rock, zeolite and active carbon.
2. a kind of application method of denitrification filler as described in claim 1, it is characterised in that: by the volcanic rock, boiling
Stone and active carbon are sieved into the particle of 5-30mm partial size.
3. a kind of application method of denitrification filler as described in claim 1, it is characterised in that: by the denitrification filler
Volcanic rock, zeolite and active carbon enter to be adapted in reactor with the mass of 30~10:5~1:5~1 than mixed packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710414911.2A CN106986451B (en) | 2017-06-05 | 2017-06-05 | A kind of denitrification filler and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710414911.2A CN106986451B (en) | 2017-06-05 | 2017-06-05 | A kind of denitrification filler and its application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106986451A CN106986451A (en) | 2017-07-28 |
| CN106986451B true CN106986451B (en) | 2019-07-09 |
Family
ID=59421438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710414911.2A Active CN106986451B (en) | 2017-06-05 | 2017-06-05 | A kind of denitrification filler and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106986451B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466809A (en) * | 2013-09-09 | 2013-12-25 | 深圳市深港产学研环保工程技术股份有限公司 | Method for restoring groundwater nitrate pollution |
-
2017
- 2017-06-05 CN CN201710414911.2A patent/CN106986451B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466809A (en) * | 2013-09-09 | 2013-12-25 | 深圳市深港产学研环保工程技术股份有限公司 | Method for restoring groundwater nitrate pollution |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106986451A (en) | 2017-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107151050B (en) | A kind of mixotrophism type denitrification filler and its methods for making and using same | |
| CN105585220B (en) | A kind of urban sewage treatment system and purification method | |
| CN104528932B (en) | A kind of advanced treatment of wastewater denitrification bio-filter apparatus system and process technique | |
| CN110386736A (en) | A kind of sewage treatment nitrogen phosphorus advanced treatment system and its processing method | |
| CN105174622A (en) | System and method suitable for treating high concentration organic wastewater | |
| CN107117706B (en) | A kind of denitrification Controlled-release filler and its methods for making and using same | |
| CN110526504B (en) | System and method for treating regenerated waste liquid of targeted denitrification and dephosphorization resin | |
| CN103466809B (en) | A kind of method repairing groundwater azotate pollution | |
| CN111056700A (en) | Novel composite wetland system for repairing micro-polluted water body | |
| CN205035225U (en) | High -concentration ammonia nitrogen organic waste water's processing system | |
| CN108191064B (en) | Method for deeply treating tail water of sewage treatment plant by adopting constructed wetland | |
| CN105236687A (en) | Sewage treatment device and method for self-cleaning type micro-aeration vertical baffled wetland | |
| CN109775936B (en) | Low-energy-consumption domestic sewage treatment system | |
| CN108275847A (en) | A kind of sewage disposal system | |
| CN205188085U (en) | Bury sewage treatment device of formula hospital | |
| CN111747605A (en) | Multistage physicochemical-biochemical combined domestic sewage treatment system and treatment method | |
| CN204474402U (en) | A kind of advanced treatment of wastewater denitrification bio-filter apparatus system | |
| CN106986451B (en) | A kind of denitrification filler and its application method | |
| CN102617002A (en) | Method for treating dispersed domestic sewage | |
| CN103145246B (en) | Device and method for controlling runoff pollution of farmland for large-scale farming | |
| CN205035223U (en) | System for organic waste water is handled in little electrolysis combination of application anaerobism - good oxygen - | |
| CN215924530U (en) | Device for percolating and treating rare earth tail water by combining bacteria and algae | |
| CN205820982U (en) | A kind of integration combined biological filter tank | |
| CN212127912U (en) | Thermal power plant wastewater advanced treatment system with standard IV-class surface water | |
| CN211078800U (en) | System for treating regenerated waste liquid of targeted nitrogen and phosphorus removal resin |
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 |