CN110002690A - A kind of landfill leachate high-efficient treatment method - Google Patents
A kind of landfill leachate high-efficient treatment method Download PDFInfo
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- CN110002690A CN110002690A CN201910386234.7A CN201910386234A CN110002690A CN 110002690 A CN110002690 A CN 110002690A CN 201910386234 A CN201910386234 A CN 201910386234A CN 110002690 A CN110002690 A CN 110002690A
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- landfill leachate
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- efficient treatment
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- 239000000149 chemical water pollutant Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 11
- 239000010865 sewage Substances 0.000 claims description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 229920002401 polyacrylamide Polymers 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 10
- 239000004411 aluminium Substances 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 5
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims 2
- 238000006116 polymerization reaction Methods 0.000 claims 1
- 238000002306 biochemical method Methods 0.000 abstract description 3
- 238000001311 chemical methods and process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000010813 municipal solid waste Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F1/722—Oxidation by peroxides
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
-
- 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
- C02F3/30—Aerobic and anaerobic processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of landfill leachate high-efficient treatment methods.The landfill leachate high-efficient treatment method is the following steps are included: pretreatment, biochemical treatment, Fenton processing, disinfection.The present invention provides a kind of landfill leachate high-efficient treatment method, cooperates with processing landfill leachate with physico-chemical process using biochemical method, the landfill leachate of different phase can be effectively treated and be able to satisfy discharge standard, and economical, efficient, treatment effect is stablized.
Description
Technical field
The present invention relates to technical field of sewage, specifically, being related to a kind of landfill leachate high-efficient treatment method.
Background technique
The quantity cumulative year after year of China's townm refuse, if without properly disposing, it is likely that can have the hidden of garbage-surrounded city
Suffer from.The mode of refuse disposal at present has landfill, compost and burning etc., wherein landfill is the major way of China's garbage disposal.Rubbish
The percolate of rubbish landfill yard is the main pollution that landfill yard generates, mainly from following three aspects: (1) nature in landfill yard
Rainfall and runoff；(2) rubbish itself is original aqueous；(3) due to the moisture of the anaerobic fermentation generation of microorganism.
Landfill leachate is a kind of high concentrated organic wastewater of complicated component, wherein containing carcinogenic substance, promoting cancer object, auxiliary carcinogenic
More than 20 kinds of hazardous contaminants on the organic matters such as the phenyl ring of object and priority pollutant " blacklist ", moisture are multiple
Miscellaneous, the fluctuation of water quality and water is big, therefore, properly handles the percolate generated during garbage loading embeading, eliminates rubbish and seep
Influence of the filtrate to environment is to prevent the most important measure of secondary pollution.
The more Landfill Leachate processing technique of engineer application has " pretreatment+MBR+ nanofiltration/reverse osmosis at present
Thoroughly " or " pretreatment+two-stage DTRO " etc., but there are inevitable defects for membrane technology, can all generate the concentrate of film, to
Qualified discharge, it is still necessary to further handle, this will will increase financial burden.With the increase of landfill time, landfill leachate
Water quality situation have very big difference in early stage, mid-term, advanced stage, therefore use individual materialization or the more difficult satisfaction of biochemical technology
Discharge standard.
Summary of the invention
In order to solve conventional garbage leachate processing method using individual materialization or the more difficult satisfaction discharge mark of biochemical technology
Quasi- technical problem, the present invention provide a kind of landfill leachate high-efficient treatment method, cooperate with processing with physico-chemical process using biochemical method
Landfill leachate can be effectively treated the landfill leachate of different phase and be able to satisfy discharge standard, economical, efficient, treatment effect
Stablize.
The present invention provides a kind of landfill leachate high-efficient treatment methods, comprising the following steps:
Step 1: pretreatment: landfill leachate to be processed is added after removing the large granular impurities such as stone cleaning, metal by grid
Enter flocculant, be sufficiently stirred, be separated by solid-liquid separation after the reaction was completed, obtains sewage to be processed；
Step 2: biochemical treatment: being passed sequentially through at OAO system and SBBR reactor progress biochemistry after the sewage is adjusted pH
Reason；
Step 3: Fenton is handled: the sewage after biochemical treatment is carried out Fenton's reaction；
Step 4: disinfection: will go out after Fenton treated sewage carries out ultraviolet disinfection, separation of solid and liquid to get treated
Water.
In a kind of preferred embodiment of landfill leachate high-efficient treatment method provided by the invention, in the step 1,
The flocculant is made of aluminium polychloride, polyacrylamide and active carbon by weight 3 ~ 5:1 ~ 3:1 ~ 2；In use, first will
Aluminium polychloride and polyacrylamide are added in the sewage, add active carbon after being stirred to react 20 ~ 30 minutes, continue to stir
Reaction 10 ~ 15 minutes.
In a kind of preferred embodiment of landfill leachate high-efficient treatment method provided by the invention, the flocculant adds
Enter amount are as follows: 0.1 ~ 0.5g flocculant is added in every liter of sewage.
In a kind of preferred embodiment of landfill leachate high-efficient treatment method provided by the invention, in the step 2,
The OAO system includes sequentially connected first aerobic tank, anoxic pond and the second aerobic tank, and the sewage is good by described first
The water inlet in oxygen pond enters the OAO system, and treated, and sewage is discharged by the water outlet of second aerobic tank.
In a kind of preferred embodiment of landfill leachate high-efficient treatment method provided by the invention, in the step 3,
When carrying out Fenton's reaction, FeSO4•7H2The dosage of O are as follows: 2 ~ 4gFeSO is added in every liter of sewage4•7H2O；H2O2Dosage are as follows:
20 ~ 30mlH is added in every liter of sewage2O2。
Compared to the prior art, landfill leachate high-efficient treatment method provided by the invention, which has the advantages that, adopts
Processing landfill leachate is cooperateed with physico-chemical process with biochemical method, the landfill leachate of different phase can be effectively treated and be able to satisfy discharge
Standard, economical, efficient, treatment effect is stablized.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1
A kind of landfill leachate high-efficient treatment method, comprising the following steps:
S1, pretreatment: by landfill leachate to be processed by grid, after removing the large granular impurities such as stone cleaning, metal, wadding is added
Solidifying agent, is sufficiently stirred, is separated by solid-liquid separation after the reaction was completed, obtain sewage to be processed；
The flocculant is made of aluminium polychloride, polyacrylamide and active carbon by weight 3:1:1；The flocculant adds
Enter amount are as follows: 0.5g flocculant is added in every liter of sewage；In use, the sewage first is added in aluminium polychloride and polyacrylamide
In, it is stirred to react and adds active carbon after twenty minutes, continue to be stirred to react 10 minutes；
S2, biochemical treatment: OAO system and the progress biochemical treatment of SBBR reactor are passed sequentially through after the sewage is adjusted pH；
The OAO system includes sequentially connected first aerobic tank, anoxic pond and the second aerobic tank, and the sewage passes through described the
The water inlet of one aerobic tank enters the OAO system, and treated, and sewage is discharged by the water outlet of second aerobic tank；
S3, Fenton processing: the sewage after biochemical treatment is subjected to Fenton's reaction；
When carrying out Fenton's reaction, FeSO4•7H2The dosage of O are as follows: 2g FeSO is added in every liter of sewage4•7H2O；H2O2Dosage
Are as follows: 20ml H is added in every liter of sewage2O2；
S4, disinfection: will be after Fenton treated sewage carries out ultraviolet disinfection, separation of solid and liquid to get treated water outlet.
Embodiment 2
A kind of landfill leachate high-efficient treatment method, comprising the following steps:
S1, pretreatment: by landfill leachate to be processed by grid, after removing the large granular impurities such as stone cleaning, metal, wadding is added
Solidifying agent, is sufficiently stirred, is separated by solid-liquid separation after the reaction was completed, obtain sewage to be processed；
The flocculant is made of aluminium polychloride, polyacrylamide and active carbon by weight 4:2:1.5；The flocculant
Additional amount are as follows: 0.3g flocculant is added in every liter of sewage；In use, the sewage first is added in aluminium polychloride and polyacrylamide
In, active carbon is added after being stirred to react 25 minutes, continues to be stirred to react 13 minutes；
S2, biochemical treatment: OAO system and the progress biochemical treatment of SBBR reactor are passed sequentially through after the sewage is adjusted pH；
The OAO system includes sequentially connected first aerobic tank, anoxic pond and the second aerobic tank, and the sewage passes through described the
The water inlet of one aerobic tank enters the OAO system, and treated, and sewage is discharged by the water outlet of second aerobic tank；
S3, Fenton processing: the sewage after biochemical treatment is subjected to Fenton's reaction；
When carrying out Fenton's reaction, FeSO4•7H2The dosage of O are as follows: 3g FeSO is added in every liter of sewage4•7H2O；H2O2Dosage
Are as follows: 25ml H is added in every liter of sewage2O2；
S4, disinfection: will be after Fenton treated sewage carries out ultraviolet disinfection, separation of solid and liquid to get treated water outlet.
Embodiment 3
A kind of landfill leachate high-efficient treatment method, comprising the following steps:
S1, pretreatment: by landfill leachate to be processed by grid, after removing the large granular impurities such as stone cleaning, metal, wadding is added
Solidifying agent, is sufficiently stirred, is separated by solid-liquid separation after the reaction was completed, obtain sewage to be processed；
The flocculant is made of aluminium polychloride, polyacrylamide and active carbon by weight 5:3:2；The flocculant
Additional amount are as follows: 0.1g flocculant is added in every liter of sewage；In use, the sewage first is added in aluminium polychloride and polyacrylamide
In, active carbon is added after being stirred to react 30 minutes, continues to be stirred to react 15 minutes；
S2, biochemical treatment: OAO system and the progress biochemical treatment of SBBR reactor are passed sequentially through after the sewage is adjusted pH；
The OAO system includes sequentially connected first aerobic tank, anoxic pond and the second aerobic tank, and the sewage passes through described the
The water inlet of one aerobic tank enters the OAO system, and treated, and sewage is discharged by the water outlet of second aerobic tank；
S3, Fenton processing: the sewage after biochemical treatment is subjected to Fenton's reaction；
When carrying out Fenton's reaction, FeSO4•7H2The dosage of O are as follows: 4g FeSO is added in every liter of sewage4•7H2O；H2O2Dosage
Are as follows: 30ml H is added in every liter of sewage2O2；
S4, disinfection: will be after Fenton treated sewage carries out ultraviolet disinfection, separation of solid and liquid to get treated water outlet.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (5)
1. a kind of landfill leachate high-efficient treatment method, which comprises the following steps:
Step 1: pretreatment: landfill leachate to be processed is added after removing the large granular impurities such as stone cleaning, metal by grid
Enter flocculant, be sufficiently stirred, be separated by solid-liquid separation after the reaction was completed, obtains sewage to be processed；
Step 2: biochemical treatment: being passed sequentially through at OAO system and SBBR reactor progress biochemistry after the sewage is adjusted pH
Reason；
Step 3: Fenton is handled: the sewage after biochemical treatment is carried out Fenton's reaction；
Step 4: disinfection: will go out after Fenton treated sewage carries out ultraviolet disinfection, separation of solid and liquid to get treated
Water.
2. landfill leachate high-efficient treatment method according to claim 1, which is characterized in that described in the step 1
Flocculant is made of aluminium polychloride, polyacrylamide and active carbon by weight 3 ~ 5:1 ~ 3:1 ~ 2；In use, first will polymerization
Aluminium chloride and polyacrylamide are added in the sewage, add active carbon after being stirred to react 20 ~ 30 minutes, continue to be stirred to react
10 ~ 15 minutes.
3. landfill leachate high-efficient treatment method according to claim 2, which is characterized in that the additional amount of the flocculant
Are as follows: 0.1 ~ 0.5g flocculant is added in every liter of sewage.
4. landfill leachate high-efficient treatment method according to claim 1, which is characterized in that described in the step 2
OAO system includes sequentially connected first aerobic tank, anoxic pond and the second aerobic tank, and the sewage passes through first aerobic tank
Water inlet enter the OAO system, treated sewage is discharged by the water outlet of second aerobic tank.
5. landfill leachate high-efficient treatment method according to claim 1, which is characterized in that in the step 3, carry out
When Fenton's reaction, FeSO4•7H2The dosage of O are as follows: 2 ~ 4gFeSO is added in every liter of sewage4•7H2O；H2O2Dosage are as follows: every liter
20 ~ 30mlH is added in sewage2O2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910386234.7A CN110002690A (en) | 2019-05-09 | 2019-05-09 | A kind of landfill leachate high-efficient treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910386234.7A CN110002690A (en) | 2019-05-09 | 2019-05-09 | A kind of landfill leachate high-efficient treatment method |
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| Publication Number | Publication Date |
|---|---|
| CN110002690A true CN110002690A (en) | 2019-07-12 |
Family
ID=67176407
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910386234.7A Withdrawn CN110002690A (en) | 2019-05-09 | 2019-05-09 | A kind of landfill leachate high-efficient treatment method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084999A (en) * | 2021-11-12 | 2022-02-25 | 老河口瑞祥化工有限公司 | Fenton process landfill leachate treatment method |
| CN114380465A (en) * | 2022-01-14 | 2022-04-22 | 江苏新奇环保有限公司 | High-efficiency modular leachate treatment system, working method and application |
-
2019
- 2019-05-09 CN CN201910386234.7A patent/CN110002690A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084999A (en) * | 2021-11-12 | 2022-02-25 | 老河口瑞祥化工有限公司 | Fenton process landfill leachate treatment method |
| CN114380465A (en) * | 2022-01-14 | 2022-04-22 | 江苏新奇环保有限公司 | High-efficiency modular leachate treatment system, working method and application |
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