CN110194520A - A kind of enhanced oxidation method of landfill leachate - Google Patents
A kind of enhanced oxidation method of landfill leachate Download PDFInfo
- Publication number
- CN110194520A CN110194520A CN201910554317.2A CN201910554317A CN110194520A CN 110194520 A CN110194520 A CN 110194520A CN 201910554317 A CN201910554317 A CN 201910554317A CN 110194520 A CN110194520 A CN 110194520A
- Authority
- CN
- China
- Prior art keywords
- landfill leachate
- ozone
- oxidation method
- calcium peroxide
- enhanced oxidation
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
Abstract
The present invention provides a kind of enhanced oxidation method of landfill leachate, utilize the synergistic effect of calper calcium peroxide and ozone, it can be by the ammonia nitrogen degradation in landfill leachate, simultaneously because calper calcium peroxide reacts to obtain calcium hydroxide with water, the calcium hydroxy phosphate of indissoluble can be formed with the phosphate radical in landfill leachate, the process speed is fast, does not cause secondary pollution to water body, and the synergistic effect of calper calcium peroxide and ozone can also be effectively by CODCrIn larger molecular organics be degraded into small organic molecule, make landfill leachate B/C than being improved by original 0.03-0.16 to 0.3-0.6, be conducive to subsequent advanced treating；Water body is added after mixing using dolomite with calper calcium peroxide and carries out ozonation aerated scheme again, cost can be reduced while taking into account except ammonia nitrogen and phosphorus effect；The method of the present invention is reliable, and cost is relatively low, and equipment takes up little area, and treating capacity is big, can tentatively reduce the COD of landfill leachateCrAnd rapidly by landfill leachate ammonia nitrogen and phosphorus drop to reduced levels, be suitable for promote.
Description
Technical field
The present invention relates to a kind of technical field of sewage, and in particular to a kind of enhanced oxidation method of landfill leachate.
Background technique
Landfill leachate is a kind of high concentrated organic wastewater, the water contained from rubbish itself in refuse landfill
Point, into the sleet water and other moisture of landfill yard, then deduct the saturation moisture capacity of rubbish, overburden layer, and undergo waste layer and
Overburden layer and formed.
Since landfill leachate may influence in many of forming process factor the property of landfill leachate, including object
Reason factor, chemical factor and biological factor etc., so the property of landfill leachate changes in a sizable range.
In general, pH value is between 4-9, CODCrAbout in the range of 2000-62000mg/L, the concentration of ammonia nitrogen is about
In the range of 100-5000mg/L, for the content of phosphorus about in the range of 20-500mg/L, landfill leachate is that a kind of ingredient is multiple
If miscellaneous high concentrated organic wastewater is directly discharged into environment untreated, will cause serious environmental pollution, so seeping to rubbish
Filtrate, which carries out processing, to be very important.
Currently, the processing method of landfill leachate mainly uses bioanalysis to be handled, bioanalysis is divided at aerobe
The combination of reason, anaerobic bio-treated and the two, Aerobic Process for Treatment includes activated sludge process, aeration oxidation pool, the aerobic stabilization pool, life
Object turntable and trickling filter etc., Anaerobic Treatment include upward flow Sludge Bed, anaerobic immobilized bioreactor, mixing reactor and detest
Oxidation stability pool etc., bioanalysis need to occupy biggish place, and equipment is more, early investment higher cost, and it is big to be only applicable to processing
The flexibility of the sewage of amount, technique is low, haves the defects that certain.
Summary of the invention
In order to landfill leachate carry out preliminary treatment, the present invention the following technical schemes are provided:
A kind of enhanced oxidation method of landfill leachate, for the processing to landfill leachate, comprising the following steps:
(1) landfill leachate is put into aeration tank, calper calcium peroxide is added into aeration tank, dosage is every liter of water 1-5g peroxide
Change calcium；
(2) make pure oxygen using pure oxygen mechanism, the pure oxygen that pure oxygen mechanism is gone out is as the oxygen of ozone generator
Ozone is produced in source；
(3) ozone made from ozone generator is passed through in the aeration tank of the water body and is aerated.
Further, the generation rate of the ozone generator is 56L/h/m3。
Further, the time of the aeration is 30-90min.
Further, the enhanced oxidation method of the landfill leachate further comprise the steps of: (4) it is ozonation aerated after will place
Water body after reason is slightly stood.
Further, the enhanced oxidation method of the landfill leachate further comprise the steps of: (4) it is ozonation aerated after close
Ozone generator is passed through oxygen to aeration tank and is slightly aerated.
Further, while calper calcium peroxide is put into water body, the dolomite of equivalent is put into also into water body.
In the present solution, the COD of landfill leachateCrRemoval rate is 30% or more, and the removal rate of ammonia nitrogen is 60% or more, phosphorus
Removal rate is 85% or more.
The solution of the present invention compares processing of the bioanalysis to landfill leachate, and one side occupied area is small, and equipment is small, investment
Low, simple process, human cost is smaller, on the other hand, still few for either a large amount of sewage since its processing speed is fast
The sewage of amount can be handled flexibly, and applicability is wide, can overcome the inherent shortcoming of bioanalysis.
Beneficial effects of the present invention are that the present invention provides a kind of enhanced oxidation method of landfill leachate, utilize peroxidating
The synergistic effect of calcium and ozone, can be by the ammonia nitrogen degradation in landfill leachate, simultaneously because calper calcium peroxide reacts to obtain with water
Calcium hydroxide can form the calcium hydroxy phosphate of indissoluble with the phosphate radical in landfill leachate, and the process speed is fast, not right
Water body causes secondary pollution, and the synergistic effect of calper calcium peroxide and ozone can also be effectively by CODCrIn larger molecular organics drop
Solution becomes small organic molecule；Water body is added after mixing using dolomite with calper calcium peroxide and carries out ozonation aerated scheme, energy again
Enough while taking into account except ammonia nitrogen and phosphorus effect, cost is reduced；The method of the present invention is reliable, and cost is relatively low, and equipment takes up little area, place
Reason amount is big, can tentatively reduce the COD of landfill leachateCr, can rapidly by landfill leachate ammonia nitrogen and phosphorus drop to it is lower
Level is suitable for promoting.
Detailed description of the invention
Fig. 1 is the flow chart of landfill leachate enhanced oxidation；
Fig. 2 is that the flow chart that landfill leachate carries out enhanced oxidation is added in dolomite and calper calcium peroxide.
Specific embodiment
To make the present invention technological means, feature and effect for realizing be easier to be understood, With reference to embodiment and
Attached drawing in the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that is retouched
The embodiment stated is only a part of the embodiment of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The all other embodiment obtained, shall fall within the protection scope of the present invention.
The water inlet of following embodiment is all from landfill leachate, BOD5With CODCrThe ratio between numerical value be known as B/C ratio, the numerical value
Small organic molecule can be embodied in CODCrIn contribution, B/C numerical value is bigger, shows that small organic molecule content is higher, is suitable for
Further deep oxidation.
Embodiment 1
As shown in Figure 1, landfill leachate is introduced aeration tank, calper calcium peroxide is added into the water of aeration tank, dosage is every
Water 5g calper calcium peroxide is risen, pure oxygen machine and ozone generator are opened, is aerated to aeration tank, the outlet of the pure oxygen machine is sent out as ozone
The air inlet of life, the generation rate of the ozone generator are 56L/h/m3, right in order to match the generation rate of ozone generator
The generation rate for the pure oxygen machine answered is 1400L/h/m3, the time of aeration is 90min, stands 10min after aeration, takes
The COD of water after sample measurement processingCr、BOD5, ammonia nitrogen and phosphorus content.
Table 1
As shown in table 1, after the processing of embodiment 1, the COD of landfill leachateCrRemoval rate is 38.86%, B/C ratio by 0.09
0.5 is risen to, ammonia nitrogen removal frank reaches 74.91%, and the removal rate of phosphorus reaches 92.90%.
Embodiment 2
As shown in Figure 1, landfill leachate is introduced aeration tank, calper calcium peroxide is added into the water of aeration tank, dosage is every
Water 3g calper calcium peroxide is risen, pure oxygen machine and ozone generator are opened, is aerated to aeration tank, the outlet of the pure oxygen machine is sent out as ozone
The air inlet of life, the generation rate of the ozone generator are 56L/h/m3, right in order to match the generation rate of ozone generator
The generation rate for the pure oxygen machine answered is 1400L/h/m3, the time of aeration is 60min, closes ozone after aeration
Machine is passed through oxygen aeration 10min, the COD of water after sampling and measuring processingCr、BOD5, ammonia nitrogen and phosphorus content.
Table 2
| Project | It intakes (mg/L) | It is discharged (mg/L) | Removal rate |
| CODCr | 18825 | 12377 | 34.25% |
| BOD5 | 570 | 3713 | - |
| Ammonia nitrogen | 1618 | 493 | 69.53% |
| Phosphorus | 155 | 14 | 90.97% |
As shown in table 2, after the processing of embodiment 2, the COD of landfill leachateCrRemoval rate is 34.25%, B/C ratio by 0.03
0.3 is risen to, ammonia nitrogen removal frank reaches 69.53%, and the removal rate of phosphorus reaches 90.97%.
Embodiment 3
As shown in Figure 1, landfill leachate is introduced aeration tank, calper calcium peroxide is added into the water of aeration tank, dosage is every
Water 1g calper calcium peroxide is risen, pure oxygen machine and ozone generator are opened, is aerated to aeration tank, the outlet of the pure oxygen machine is sent out as ozone
The air inlet of life, the generation rate of the ozone generator are 56L/h/m3, right in order to match the generation rate of ozone generator
The generation rate for the pure oxygen machine answered is 1400L/h/m3, the time of aeration is 30min, closes ozone after aeration
Machine is passed through oxygen aeration 10min, the COD of water after sampling and measuring processingCr、BOD5, ammonia nitrogen and phosphorus content.
Table 3
| Project | It intakes (mg/L) | It is discharged (mg/L) | Removal rate |
| CODCr | 13624 | 9489 | 30.35% |
| BOD5 | 2180 | 5693 | - |
| Ammonia nitrogen | 1302 | 489 | 62.42% |
| Phosphorus | 106 | 13 | 87.74% |
As shown in table 3, after the processing of embodiment 3, the COD of landfill leachateCrRemoval rate reach 30.35%, B/C ratio by
0.16 rises to 0.6, and ammonia nitrogen removal frank reaches 62.42%, and the removal rate of phosphorus reaches 87.74%.
Embodiment 4
As shown in Fig. 2, landfill leachate is introduced aeration tank, calper calcium peroxide is added into the water of aeration tank, dosage is every
Water 1g calper calcium peroxide is risen, while adding the dolomite powder of 200 mesh into the water of aeration tank, dosage is every liter of water 1g dolomite dust
Pure oxygen machine and ozone generator are opened in end, are aerated to aeration tank, air inlet of the outlet of the pure oxygen machine as ozone generator,
The generation rate of the ozone generator is 56L/h/m3, corresponding described pure in order to match the generation rate of ozone generator
The generation rate of oxygen machine is 1400L/h/m3, the time of aeration is 90min, closes ozone generator after aeration and is passed through oxygen
It is aerated 10min, the COD of water after sampling and measuring processingCr、BOD5, ammonia nitrogen and phosphorus content.
Table 4
As shown in table 4, after the processing of embodiment 4, the COD of landfill leachateCrRemoval rate reach 33.17%, B/C ratio by
0.06 rises to 0.45, and ammonia nitrogen removal frank reaches 65.82%, and the removal rate of phosphorus reaches 89.67%.
It can be obtained by the interpretation of result of embodiment 1- embodiment 4, landfill leachate, COD are handled using process aboveCrGo
Except rate is stablized 30% or more, landfill leachate B/C by original 0.03-0.16 than being improved to 0.3-0.6, the removal rate of ammonia nitrogen
Stablize 60% or more, the removal rate of phosphorus is stablized 85% or more, can satisfy the preliminary treatment requirement of landfill leachate, is suitable for
It promotes.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any modification
Or equivalent replacement, it should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of enhanced oxidation method of landfill leachate, for the processing to landfill leachate, which is characterized in that including following
Step:
(1) landfill leachate is put into aeration tank, calper calcium peroxide is added into aeration tank, dosage is every liter of water 1-5g peroxidating
Calcium；
(2) make pure oxygen using pure oxygen mechanism, the pure oxygen that pure oxygen mechanism is gone out is as the source of oxygen of ozone generator, system
Ozone out；
(3) ozone made from ozone generator is passed through in the aeration tank of the water body and is aerated.
2. the enhanced oxidation method of landfill leachate as described in claim 1, which is characterized in that the hair of the ozone generator
Raw rate is 56L/h/m3。
3. the enhanced oxidation method of landfill leachate as described in claim 1, which is characterized in that the time of the aeration is
30-90min。
4. the enhanced oxidation method of landfill leachate as described in claim 1, which is characterized in that further comprise the steps of: (4) ozone
By treated, water body is slightly stood after aeration.
5. the enhanced oxidation method of landfill leachate as described in claim 1, which is characterized in that further comprise the steps of: (4) ozone
Closing ozone generator is passed through oxygen to aeration tank and is slightly aerated after aeration.
6. the enhanced oxidation method of landfill leachate a method as claimed in any one of claims 1 to 5, which is characterized in that put into water body
While calper calcium peroxide, the dolomite powder of equivalent is put into also into water body, the partial size of the dolomite powder is 50-200 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910554317.2A CN110194520A (en) | 2019-06-25 | 2019-06-25 | A kind of enhanced oxidation method of landfill leachate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910554317.2A CN110194520A (en) | 2019-06-25 | 2019-06-25 | A kind of enhanced oxidation method of landfill leachate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110194520A true CN110194520A (en) | 2019-09-03 |
Family
ID=67755112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910554317.2A Pending CN110194520A (en) | 2019-06-25 | 2019-06-25 | A kind of enhanced oxidation method of landfill leachate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110194520A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011026910A1 (en) * | 2009-09-07 | 2011-03-10 | Tetra Gmbh | Continuous purification of aquaculture water holding aquatic animals and/or aquatic plants |
| CN106430523A (en) * | 2016-11-07 | 2017-02-22 | 中国海诚工程科技股份有限公司 | Deep ozone treatment device and treatment method for organic wastewater biochemical effluent |
| CN109081422A (en) * | 2018-08-27 | 2018-12-25 | 南京泽辉环保科技有限公司 | A method of utilizing low-concentration ammonia-nitrogen in ozone and micro calper calcium peroxide removal water body |
| CN109516541A (en) * | 2018-12-05 | 2019-03-26 | 东华大学 | A kind of method of methyl-red dye in ozone-calper calcium peroxide co-treating wastewater |
-
2019
- 2019-06-25 CN CN201910554317.2A patent/CN110194520A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011026910A1 (en) * | 2009-09-07 | 2011-03-10 | Tetra Gmbh | Continuous purification of aquaculture water holding aquatic animals and/or aquatic plants |
| CN106430523A (en) * | 2016-11-07 | 2017-02-22 | 中国海诚工程科技股份有限公司 | Deep ozone treatment device and treatment method for organic wastewater biochemical effluent |
| CN109081422A (en) * | 2018-08-27 | 2018-12-25 | 南京泽辉环保科技有限公司 | A method of utilizing low-concentration ammonia-nitrogen in ozone and micro calper calcium peroxide removal water body |
| CN109516541A (en) * | 2018-12-05 | 2019-03-26 | 东华大学 | A kind of method of methyl-red dye in ozone-calper calcium peroxide co-treating wastewater |
Non-Patent Citations (1)
| Title |
|---|
| 赵莹等: "《垃圾能源化利用与管理》", 31 January 2013, 上海科学技术出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1032527C (en) | Method of treating waste water and equipment therefor | |
| CN101428938B (en) | Treatment process for garbage leachate | |
| CN106830573A (en) | Low energy consumption municipal sewage denitrogenation method based on the capture of reinforcing carbon with Anammox | |
| CN110395851B (en) | High-altitude town sewage treatment method based on nitrogen and phosphorus capture and completely autotrophic nitrogen removal | |
| CN1907889A (en) | Apparatus and method of treating city domestic refuse percolation liquid by two-stage UASB+A/O technique | |
| CN109694131B (en) | Denitrification method and system for landfill leachate | |
| CN106430845A (en) | Kitchen garbage wastewater treatment apparatus | |
| CN107285573A (en) | The processing method and system of a kind of percolate | |
| US8828230B2 (en) | Wastewater treatment method for increasing denitrification rates | |
| CN103265151B (en) | Treatment method of heavy metal wastewater | |
| CN209210575U (en) | High saliferous organic wastewater with difficult degradation thereby reaches the processing system of IV class water quality of earth's surface | |
| CN109384306A (en) | A kind of high calcium high-salt sewage denitrogenation takes off the treatment process of COD | |
| KR20050045885A (en) | Process and assembly for the treatment of waste water on ships | |
| CN109879538A (en) | A kind of high total nitrogen, high salinity antibiotics pharmacy waste water processing method | |
| JP2002079034A (en) | Biological desulfurization method and apparatus | |
| CN111087131A (en) | Biochemical treatment method for pharmaceutical wastewater | |
| CN110194520A (en) | A kind of enhanced oxidation method of landfill leachate | |
| KR100306665B1 (en) | Microbial Reactor and Drainage Treatment Method | |
| CN109320029A (en) | Liquor production wastewater processing method and system | |
| KR20100046936A (en) | Combined sulfur autotrophic denitrification and bioelectrochemical denitrification system | |
| CN113582456A (en) | Medical sewage treatment method | |
| CN209307174U (en) | Liquor production wastewater processing system | |
| CN105601056A (en) | Sewage treatment method with enhanced denitrification and dephosphorization functions | |
| JP4289731B2 (en) | Method and apparatus for treating organic waste | |
| KR101306805B1 (en) | The method and Treatment process of Wastewater containing organic matter and nitrogen compounds-livestock wastewater, digestive wastewater, food wastewater |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190903 |