CN104163497B - A kind of low dissolved oxygen magnetic biochemical treatment system and technique - Google Patents
A kind of low dissolved oxygen magnetic biochemical treatment system and technique Download PDFInfo
- Publication number
- CN104163497B CN104163497B CN201410186520.6A CN201410186520A CN104163497B CN 104163497 B CN104163497 B CN 104163497B CN 201410186520 A CN201410186520 A CN 201410186520A CN 104163497 B CN104163497 B CN 104163497B
- Authority
- CN
- China
- Prior art keywords
- pond
- oxygen
- magnetic
- mud
- deprivation
- 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
Landscapes
- Biological Treatment Of Waste Water (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a kind of low dissolved oxygen magnetic biochemical treatment system and technique, comprise connect successively oxygen deprivation pond, oxygen enrichment pond and settling tank, mud-water separation district and exhalant region is divided in described settling tank, described exhalant region connects rising pipe, described oxygen deprivation pond connects water inlet pipe, bottom described oxygen enrichment pond, aerating apparatus is set, the external blower fan of this aerating apparatus; Also comprise: magnetic drum separator, the entrance of this magnetic drum separator is connected to bottom described mud-water separation district by excess sludge pipe, exports and is connected to described oxygen deprivation pond by magnetic substance return line; Internal reflux pump, the entrance of this internal reflux pump connects oxygen enrichment pond end, and outlet connects front end, oxygen deprivation pond.The basis of the tangible original biochemical treatment system of the present invention is mixed magnetic carrier, Magneto separate and low dissolved oxygen nitrosification modern technique, while improving the Nitrogen/Phosphorus Removal of waste water, also improved the effluent quality of waste water.
Description
Technical field
The present invention relates to material and field of environment engineering technology, particularly relate to a kind of low dissolved oxygen magnetic biochemical treatment system and technique.
Background technology
Sewage treatment area mesophytization treatment system use range is relatively wider, and working life is also longer.Biochemical system mainly can be divided into activated sludge process and biomembrance process, and wherein biomembrance process is a kind of biological process of wastewater treatment efficiently, and bio-carrier is then the core of biomembrance process.
Such as publication number is the microbial film treatment process that the Chinese invention patent application document of CN103319054AA discloses a kind of organic waste water, comprise the steps: 1) one-level biological treatment: adopt MBBR technique to carry out Aerobic-anaerobic biological degradation process to pretreated organic waste water, the specific surface area of reactor inner suspension filler is 200 ~ 500m2/m3, density is 0.92 ~ 1.0g/L, and the stacking volume of floating stuffing is 20 ~ 70% with the useful volume ratio of reactor; 2) two stage biological process: adopt static bed biomembrane reactor technique to carry out Aerobic-anaerobic degree of depth biological degradation process to organic waste water, organic waste water is that serpentine flow is through fixing filler from top to bottom in reactor.
Publication number is that the Chinese invention patent application document of CN103232144A discloses a kind of organic waste-water treating apparatus, be mainly catalytic oxidation+artificial swamp+artificial floating island combination unit, comprise: flexible biological film contact-oxidation pool, flexible biological membrane carrier is hung in pond, pond inner bottom part lays aeration head, and this aeration head is connected with air blast machine room; Flexible biological film contact-oxidation pool connects settling tank, is provided with the sewage submersible pump of suction filtration precipitation in settling tank; The water outlet of settling tank connects artificial swamp, and the end of artificial swamp is provided with water outlet, arranges artificial floating island in the middle of artificial swamp.
Publication number is microbial film treatment process and the equipment thereof that the Chinese invention patent application document of CN103319054A discloses a kind of organic waste water, and this technique comprises the steps: 1) one-level biological treatment: with the pretreated waste water of MBBR art breading; 2) two stage biological process: with static bed biomembrane reactor art breading waste water.Equipment comprises the biofilm packing of pond body and Qi Nei, drives the mouth of a river on the left of the body of pond, right side opening water outlet, baffled on the body longitudinal section of pond, establish aerating apparatus bottom pond body on the left of baffle plate, establish swash plate below baffle plate, bottom baffle plate and between swash plate, leave gap, the water outlet of pond body is connected with tower body, tower body top has water-in, and bottom has water outlet, is interval with polylith back up pad in it along top to bottom, back up pad to tile tack centrum, and interleavedly in adjacent back up pad have overflow port.
But the bio-carrier of current most biomembrance process is all based on filler that is fixed or semi-fixed type, and such filler is main mainly with plastics, fiber-like material, and easily aging, has working life again.Biomembrance process mainly contains biological filter, blodisc, biological contact oxidation process, biological fluidized bed etc.Various biomembrance process all adopts bio-carrier that is fixed or semi-fixed type, makes biomembrance process have the advantages such as shock-resistant, high loading, high-biomass, higher position reason efficiency, volume are little.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of low dissolved oxygen magnetic biochemical treatment system and technique are provided, by low dissolved oxygen content, while improving water treatment effect, also can reach the object of denitrogenation of waste water and mud decrement.
A kind of low dissolved oxygen magnetic biochemical treatment system, comprise connect successively oxygen deprivation pond, oxygen enrichment pond and settling tank, mud-water separation district and exhalant region is divided in described settling tank, described exhalant region connects rising pipe, described oxygen deprivation pond connects water inlet pipe, bottom described oxygen enrichment pond, aerating apparatus is set, the external blower fan of this aerating apparatus; Also comprise:
Magnetic drum separator, the entrance of this magnetic drum separator is connected to bottom described mud-water separation district by excess sludge pipe, exports and is connected to described oxygen deprivation pond by magnetic substance return line;
Internal reflux pump, the entrance of this internal reflux pump connects oxygen enrichment pond end, and outlet connects front end, oxygen deprivation pond.
The basis of the tangible original biochemical treatment system of the present invention is mixed magnetic carrier, Magneto separate and low dissolved oxygen nitrosification modern technique, while improving the Nitrogen/Phosphorus Removal of waste water, also improved the effluent quality of waste water.Magnetic carrier biochemistry, low dissolved oxygen nitrosification and several treatment technology of biochemical treatment are merged a system, this system effectively can remove ammonia nitrogen in waste water and total phosphorus, also can improve the settling property of waste water, the generation of mud can also be reduced, make epoch new to one on biochemical treatment system.
Native system can be used for the biochemical treatment facility of various sewage.The biochemical treatment system of urban wastewater treatment firm can be used for, make town sewage can better qualified discharge, reduce the pollution to environment; The biochemical treatment system of the sewage plant of various industrial enterprise can be used for again, improve the clearance of waste water, reduce the production rate of mud, improve environmental benefit and the economic benefit of enterprise.
Magnetic drum separator of the present invention improves on the basis of conventional magnetic drum separator, and adopt the magneticstrength of varying strength according to the different qualities of waste water, the organic efficiency of magnetic substance is more than 90%.Such as, sanitary sewage magneticstrength can select 240mT, and dyeing waste water magneticstrength can select 480mT etc.
As preferably, be divided into upper and lower two outlet areas in described exhalant region, rising pipe described in upper water-out joint area, lower outlet area connects an external reflux pump, and the other end of this external reflux pump is connected to oxygen deprivation pond.
Further preferably, the volume fraction of described upper water-out region and lower outlet area is 1:1.
As preferably, in described mud-water separation district, inclined plate packing is set.
As preferably, the outlet of described magnetic drum separator also connects a road excess sludge discharge pipe.
System of the present invention is under the combination of above-mentioned each optimum condition, better to the treatment effect of waste water.
Present invention also offers and a kind ofly utilize described low dissolved oxygen magnetic biochemical treatment system to carry out the technique of wastewater treatment, comprise the steps:
Add magnetic carrier in oxygen deprivation pond and oxygen enrichment pond, in debug process, active sludge load forms magnetic carrier supported active mud on this magnetic carrier;
Described waste water enters mud-water separation district successively behind oxygen deprivation pond and the process of oxygen enrichment pond, and after mud-water separation, clear water enters exhalant region, is finally got rid of by rising pipe;
Mud after mud-water separation is sent in magnetic drum separator and is separated, and is separated the magnetic carrier obtained and is back in oxygen deprivation pond, excess sludge discharge;
In reaction process by blower fan and aerating apparatus to oxygen supply in oxygen enrichment pond, the oxygen capacity maintained in oxygen enrichment pond is 1 ~ 2mg/L; By internal reflux pump by the sludge reflux of oxygen enrichment pond end in oxygen deprivation pond, external reflux pump by the sludge reflux bottom exhalant region in oxygen deprivation pond.
The present invention, owing to being loaded with magnetic substance, not only can reduce the oxygen capacity in oxygen enrichment pond, reduces energy consumption.Lower dissolved oxygen can impel the nitrifier of waste water and the breeding of denitrifying bacteria simultaneously, improves the clearance of the ammonia nitrogen of waste water, reaches the effect that waste water is denitrogenated.In addition, because active sludge becomes the active sludge of magnetic carrier load, while improve the activity of active sludge, also can improve the load of active sludge, so just can greatly reduce the generation of mud.
Oxygen capacity in the pond of oxygen enrichment described in the present invention is 1 ~ 2mg/L.The oxygen capacity in general oxygen enrichment pond is at 2 ~ 4mg/L, and the present invention selects oxygen capacity to be 1 ~ 2mg/L, is conducive to reducing energy consumption.
As preferably, the dosage of magnetic carrier in oxygen deprivation pond and oxygen enrichment pond is 1 ~ 3g/L.
As preferably, the hydraulic detention time of described waste water in oxygen deprivation pond is 2 ~ 4h, and the hydraulic detention time in oxygen enrichment pond is 8 ~ 24h.
Hydraulic detention time is different according to different wastewater properties, and in general, the oxygen deprivation pond residence time is about 2 ~ 4h, the oxygen enrichment pond residence time about 8 ~ 24h.
Further preferably, the oxygen capacity in described oxygen enrichment pond is 1 ~ 2mg/L; The dosage of magnetic carrier in oxygen deprivation pond and oxygen enrichment pond is 1 ~ 3g/L; The hydraulic detention time of described waste water in oxygen deprivation pond is 2 ~ 4h, and the hydraulic detention time in oxygen enrichment pond is 8 ~ 24h.
The oxygen level in the oxygen level more common oxygen enrichment pond in described oxygen enrichment pond is low, is beneficial to the breeding of nitrifier and denitrifying bacteria, improves the clearance of the ammonia nitrogen of waste water, reaches the effect that waste water is denitrogenated; Active sludge in this technique is the active sludge after magnetic carrier load, and magnetic carrier can not only improve the activity of active sludge, also can improve the load of active sludge, can greatly reduce the generation of mud.Reach the object of reduction of discharging.
As preferably, described magnetic substance particle diameter is 500 order ~ 800 orders, and proportion is 2.5.Magnetic carrier of the present invention is beneficial to microorganism growth.
The magnetic substance used in this technique is a kind of catalyzer of assisting biological growth, can adopting the magnetic substance that this area is conventional, also can adopting the magnetic carrier through improveing voluntarily, the magnetic carrier better effects if after improveing voluntarily.Strengthened the absorption degradation effect of some degradation bacteria by the action of a magnetic field of magnetic carrier, thus improve the Pollutant Treatment effect of waste water.
Magnetic substance size controlling is at 500 order ~ 800 orders, and proportion is about 2.5, need through surface-active-modified, and method of modifying is by means such as magnetization and calcinations, modified magnetic substance, and energy enlarged surface sum roughness, is more conducive to microbial growth.In addition under powerful magneticstrength effect, the settling property of mud is effectively improved, sludge structure is made moderate progress, because magnetic surface is with electric charge, magnetic is made to have stronger adsorption to the zoogloea in mud, form magnetic crumb structure closely gradually, decrease the loss of free bacteria, biomass gathers way comparatively fast, to make in bio-reactor sludge concentration increase, overcome sludge bulking, magnetic active sludge proportion than different activities mud than great, settlement separate effective, improve effluent quality.
Oxygen in water is the key that Organic substance in water decomposes, and the water sample through magnetization treatment is higher than the product oxygen rate of former water sample, and reason is that magnetic reduces organic oxygen-consuming capacity in waste water, therefore also contributes to dissolved oxygen reduction adding of magnetic.
The beneficial effect that the present invention compared with prior art has is:
1) native system set magnetic carrier, Magneto separate, the several processing method of low dissolved oxygen nitrosification.
2) magnetic carrier of native system reclaims magnetic carrier in system by magnetic drum separator, and therefore the consumption of magnetic carrier is few, reduces cost of sewage disposal.
3) native system uses magnetic material as the growing carrier of bacterial classification, is a kind of mobile membrane biological process.
4) native system uses magnetic material as the growing carrier of bacterial classification, can improve the growth cycle of bacterial classification, reduces the generation of excess sludge, reduces the generation of biochemical sludge, reduces mud to the secondary pollution of environment.
5) native system adopts low dissolved oxygen nitrosification technology, and utilizes magnetic carrier as intermediate, makes the Nitrogen/Phosphorus Removal of waste water reach optimum regime.In oxygen enrichment pond, low dissolved oxygen remains on 1 ~ 2mg/L.
6) native system adopts magnetic carrier as the growing carrier of bacterial classification, utilizes the density difference of magnetic carrier, makes muddy water more easily separated, improves subsidence rate thus improves effluent quality.
7) native system can be used for the biochemical treatment system of urban wastewater treatment firm, can be used for again the biochemical sewage treatment system of enterprise's sewage plant, applied range.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Shown in figure, Reference numeral is as follows:
3-oxygen enrichment pond, 1-water inlet pipe 2-oxygen deprivation pond
4-internal reflux pump 5-internal reflux pipe 6-aerating apparatus
7-aeration tube 8-blower fan 9-mud-water separation district
10-inclined plate packing 11-effluent trough 12-residual sludge pump
13-excess sludge pipe 14-magnetic drum separator 15-excess sludge discharge pipe
16-magnetic substance return line 17-exhalant region 18-rising pipe
19-external reflux pump 20-external reflux pipe.
Embodiment
As shown in Figure 1, a kind of low dissolved oxygen magnetic biochemical treatment system, comprise connect successively oxygen deprivation pond 2, oxygen enrichment pond 3 and settling tank, settling tank is divided into mud-water separation district 9 and exhalant region 17, and mud-water separation district 9 is connected with oxygen enrichment pond 3.
Oxygen deprivation pond 2 connects water inlet pipe 1, the bottom in oxygen enrichment pond 3 arranges aerating apparatus 6, blower fan 8 is set outside oxygen enrichment pond 3, blower fan 8 connects aerating apparatus 6 by aeration tube 7, be connected by internal reflux pump 4 and internal reflux pipe 5 between the end in oxygen enrichment pond 3 and the front end in oxygen deprivation pond 2, by the sludge reflux of oxygen enrichment pond end to the front end in oxygen deprivation pond.
Inclined plate packing 10 is set in mud-water separation district 9, the top of inclined plate packing 10 is provided with effluent trough 11, this effluent trough is communicated to exhalant region 17, upper and lower outlet area is divided in exhalant region 17, the volume ratio of upper and lower outlet area is 1:1, upper water-out joint area rising pipe 18, lower outlet area is connected to oxygen deprivation pond 2 by external reflux pump 19 and external reflux pipe 20.
The bottom in mud-water separation district 9 is connected a magnetic drum separator 14 by a residual sludge pump 12 with excess sludge pipe 13, the outlet of this magnetic drum separator 14 divides two-way, it is excess sludge discharge pipe 15 that magnetic substance return line 16 of leading up to is connected to oxygen deprivation pond 2, tunnel.
Technical process of the present invention is as follows:
Waste water enters native system after pre-treatment or from after the gathering system of workshop, and first water inlet pipe enters oxygen deprivation pond, and oxygen deprivation pond also has internal reflux liquid and external reflux liquid or magnetic substance to inject oxygen deprivation pond simultaneously simultaneously.Waste water enters oxygen enrichment pond after the reaction of the oxygen deprivation bacterium in oxygen deprivation pond, and oxygen enrichment pond utilizes gas blower and aerating apparatus to provide dissolved oxygen to oxygen enrichment pond, provides the condition that oxygen enrichment bacterium survives.
Waste water enters mud-water separation district stop the organism in certain hour degrading waste water in oxygen enrichment pond after, waste water enters from bottom, carry out mud-water separation by the inclined plate packing in mud-water separation district, sludge settling is in bottom, and supernatant liquor enters follow-up exhalant region from the effluent trough on top.Wherein be provided with excess sludge discharge system bottom mud-water separation district, comprise the residual sludge pump, excess sludge pipe, magnetic drum separator, excess sludge discharge pipe and the magnetic substance return line that connect successively, excess sludge enters magnetic drum separator by residual sludge pump by excess sludge tube pump, excess sludge is separated with magnetic substance by magnetic drum separator, excess sludge goes subsequent disposal to dispose, and magnetic substance is back to oxygen deprivation pond.
Wherein magnetic drum separator, magnetic substance organic efficiency is more than 90%.Waste water supernatant liquor after mud-water separation enters exhalant region and is provided with two outlet areas, and one is that top is provided with rising pipe, part Chinese effluent or go subsequent disposal.Another one outlet area is that bottom is provided with external reflux device, comprises external reflux pump and external reflux pipe.External reflux water outlet is back to oxygen deprivation pond by external reflux pump and external reflux pipe.Wherein the ratio of two outlet areas of exhalant region is 1:1.
Oxygen capacity in oxygen enrichment pond is 1 ~ 2mg/L; The dosage of magnetic carrier in oxygen deprivation pond and oxygen enrichment pond is 1 ~ 3g/L; The hydraulic detention time of waste water in oxygen deprivation pond is 2 ~ 4h, and the hydraulic detention time in oxygen enrichment pond is 8 ~ 24h; Magnetic substance particle diameter is 500 order ~ 800 orders, and proportion is 2.5.
Embodiment 1
By this process application in certain printing and dyeing enterprise sewage works, this enterprise's sewage plant has 2 cover parallel processing system, the common biochemical processing process of a set of employing, a set of this technique of employing in addition, the treatment scheme of two cover techniques is: oxygen deprivation pond-oxygen enrichment pond-second pond, and common group does not add magnetic carrier, and dissolved oxygen controls at 2 ~ 4mg/L, other one group for adding magnetic carrier, and dissolved oxygen controls at 1 ~ 2mg/L.Two groups of process effluent index are as shown in the table:
Table 1 sewage plant two groups for the treatment of system effluent index unit: mg/L
Note: this art breading than COD in common biochemical treatment effluent quality, ammonia nitrogen is relative with SS index improves 20%.
Claims (5)
1. a low dissolved oxygen magnetic biochemical processing process, is characterized in that, comprise the steps:
Add magnetic carrier in oxygen deprivation pond and oxygen enrichment pond, in debug process, active sludge load forms magnetic carrier supported active mud on this magnetic carrier;
Waste water enters mud-water separation district successively behind oxygen deprivation pond and the process of oxygen enrichment pond, and after mud-water separation, clear water enters exhalant region, is finally got rid of by rising pipe;
Mud after mud-water separation is sent in magnetic drum separator and is separated, and is separated the magnetic carrier obtained and is back in oxygen deprivation pond, excess sludge discharge;
In reaction process by blower fan and aerating apparatus to oxygen supply in oxygen enrichment pond, the oxygen capacity maintained in oxygen enrichment pond is 1 ~ 2mg/L; By internal reflux pump by the sludge reflux of oxygen enrichment pond end in oxygen deprivation pond, external reflux pump by the sludge reflux bottom exhalant region in oxygen deprivation pond;
The dosage of magnetic carrier in oxygen deprivation pond and oxygen enrichment pond is 1 ~ 3g/L;
Described magnetic carrier particle diameter is 500 order ~ 800 orders, and proportion is 2.5;
The system realizing described low dissolved oxygen magnetic biochemical processing process comprises: the oxygen deprivation pond connected successively, oxygen enrichment pond and settling tank, mud-water separation district and exhalant region is divided in described settling tank, described exhalant region connects rising pipe, described oxygen deprivation pond connects water inlet pipe, bottom described oxygen enrichment pond, aerating apparatus is set, the external blower fan of this aerating apparatus; Also comprise:
Magnetic drum separator, the entrance of this magnetic drum separator is connected to bottom described mud-water separation district by excess sludge pipe, exports and is connected to described oxygen deprivation pond by magnetic substance return line;
Internal reflux pump, the entrance of this internal reflux pump connects oxygen enrichment pond end, and outlet connects front end, oxygen deprivation pond.
2. low dissolved oxygen magnetic biochemical processing process according to claim 1, it is characterized in that, be divided into upper and lower two outlet areas in described exhalant region, rising pipe described in upper water-out joint area, lower outlet area connects an external reflux pump, and the other end of this external reflux pump is connected to oxygen deprivation pond.
3. low dissolved oxygen magnetic biochemical processing process according to claim 2, it is characterized in that, the volume fraction of described upper water-out region and lower outlet area is 1:1.
4. low dissolved oxygen magnetic biochemical processing process according to claim 1, is characterized in that, arrange inclined plate packing in described mud-water separation district.
5. low dissolved oxygen magnetic biochemical processing process according to claim 1, it is characterized in that, the outlet of described magnetic drum separator also connects a road excess sludge discharge pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410186520.6A CN104163497B (en) | 2014-05-05 | 2014-05-05 | A kind of low dissolved oxygen magnetic biochemical treatment system and technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410186520.6A CN104163497B (en) | 2014-05-05 | 2014-05-05 | A kind of low dissolved oxygen magnetic biochemical treatment system and technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104163497A CN104163497A (en) | 2014-11-26 |
| CN104163497B true CN104163497B (en) | 2016-03-02 |
Family
ID=51907506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410186520.6A Active CN104163497B (en) | 2014-05-05 | 2014-05-05 | A kind of low dissolved oxygen magnetic biochemical treatment system and technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104163497B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106315969A (en) * | 2015-06-25 | 2017-01-11 | 麦王环境技术股份有限公司 | Integrated wastewater treatment equipment of IBR (integral biological reactor) and treatment process |
| CN105967335A (en) * | 2016-07-18 | 2016-09-28 | 王伟 | Solar sewage treatment system |
| CN112830572A (en) * | 2021-02-25 | 2021-05-25 | 江苏联合创业环保有限公司 | Sewage treatment tank and sewage treatment method |
| CN116216923A (en) * | 2023-04-12 | 2023-06-06 | 浙江天地环保科技股份有限公司 | Combined aeration system for magnetic biochemical process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597105A (en) * | 2009-06-11 | 2009-12-09 | 浙江省环境保护科学设计研究院 | A kind of preparation method who is used for the magnetic carrier of processing technique of sewage biological fluidized bed |
| CN202054705U (en) * | 2011-04-11 | 2011-11-30 | 北京工业大学 | Magnetic loading A2/O sewage treatment device |
| CN102775019A (en) * | 2012-07-25 | 2012-11-14 | 华南理工大学 | Coupling type sewage de-phosphorization purification regeneration treatment technique |
-
2014
- 2014-05-05 CN CN201410186520.6A patent/CN104163497B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597105A (en) * | 2009-06-11 | 2009-12-09 | 浙江省环境保护科学设计研究院 | A kind of preparation method who is used for the magnetic carrier of processing technique of sewage biological fluidized bed |
| CN202054705U (en) * | 2011-04-11 | 2011-11-30 | 北京工业大学 | Magnetic loading A2/O sewage treatment device |
| CN102775019A (en) * | 2012-07-25 | 2012-11-14 | 华南理工大学 | Coupling type sewage de-phosphorization purification regeneration treatment technique |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104163497A (en) | 2014-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2017413373B2 (en) | Method and device for bioremediation of water body | |
| CN103880253B (en) | Garbage leachate advanced treatment method and Fenton reaction tower | |
| CN101525207A (en) | Integrated pre-denitrification and denitrogenation biological filter sewerage treatment process | |
| CN101817615A (en) | Anaerobic-sequencing batch biofilm reactor-artificial wetland method for treating piggery wastewater | |
| CN101973667B (en) | Combination process and device for deep purification of contaminated surface water | |
| CN205556380U (en) | Integral type sewage treatment unit | |
| CN102603128A (en) | Method for advanced treatment and recycling of landfill leachate | |
| CN101417837A (en) | Method for purifying sewage by activated sludge biological film zone | |
| CN104163497B (en) | A kind of low dissolved oxygen magnetic biochemical treatment system and technique | |
| CN102964037B (en) | Novel sewage treatment method by combined utilization of light filter material biological aerated filter and heavy filter material biological aerated filter | |
| CN201932982U (en) | Combined system using micro-electrolysis-MBR (membrane bio-reactor) combined technology to treat printing and dyeing wastewater | |
| CN113772900A (en) | Efficient nitrogen and phosphorus removal process system for mariculture tail water treatment | |
| CN107285573A (en) | The processing method and system of a kind of percolate | |
| CN110395851A (en) | High aititude urban wastewater treatment method based on nitrogen phosphorus capture and whole process autotrophic denitrification | |
| CN101327989A (en) | Tandem type two-stage three-segment aerating biological filter | |
| CN113620541A (en) | System and method for cooperatively treating brewing wastewater and low-carbon domestic sewage | |
| CN113104978A (en) | System and process for strengthening sewage treatment with low carbon-nitrogen ratio | |
| CN105923771A (en) | Self-circulation biological denitrification reactor | |
| CN105366889B (en) | A kind of town sewage high standard denitrification dephosphorization system without additional carbon | |
| CN104310710B (en) | A kind of coal chemical wastewater treating technique | |
| CN105819617B (en) | The biological thickening processing method and biological thickening device of organic chemical waste water with high salt | |
| CN209338220U (en) | A kind of sewage disposal system based on anaerobism-AO- combined artificial wetland | |
| CN204079731U (en) | Creeping bed | |
| CN104291537A (en) | Peristalsis bed and wastewater treatment method using same | |
| CN109231712A (en) | A kind of A2O2The micro-integrated sewage disposal device of+Anammox and sewage water treatment method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |