CN205653265U - Separation technology's of rotten phytic acid isolated plant among landfill leachate - Google Patents
Separation technology's of rotten phytic acid isolated plant among landfill leachate Download PDFInfo
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- CN205653265U CN205653265U CN201620418881.3U CN201620418881U CN205653265U CN 205653265 U CN205653265 U CN 205653265U CN 201620418881 U CN201620418881 U CN 201620418881U CN 205653265 U CN205653265 U CN 205653265U
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Abstract
The utility model provides a method of rotten phytic acid separation technology's isolated plant among the landfill leachate precipitates through preliminary treatment, an ultrafiltration, secondary ultrafiltration and acid out isolate three kinds of rotten phytic acid among the landfill leachate, but fulvic acid as fertilizer sources of finally isolating, medical additive etc. And adsorbent, swelling agent etc. Can be regarded as to ulmic acid and humic acid to realized landfill leachate's resourceization, the environmental benefit is showing with economic benefits.
Description
Technical field
This utility model belongs to waste water reclaiming processing technology field, the most just relates in percolate
The special purpose device of the separating technology of humic acids.
Background technology
Percolate is after biochemical treatment, and COD is the highest, and its main component is humic acids, intractability
Relatively big, the process of current humic acids mainly has two kinds of approach: 1) directly using humic acids as Pollutant Treatment,
The method is it is generally required to add substantial amounts of chemical agent, and processing cost is higher, and produces substantial amounts of mud,
Increase subsequent treatment difficulty, cause secondary pollution；2) separation and recovery utilizes humic acids, the method to separate
Humic acids purity low, often exist with yellow, palm fibre, three kinds of mixed forms of humic acid, and separating difficulty be big,
Cost is high.
Humic acids exists multiple functional group, such as phenolic hydroxyl group, alcoholic extract hydroxyl group, sulfonic group, hydroxyl, carbonyl, first
Epoxides etc., these functional groups determine that humic acids has good physical property and chemical property.As in agricultural side
Face, it can change Soil structure, strengthen water penetration, improve fertilizer efficiency etc.；In industrial aspect, can be as electric power storage
The extender in pond, the mud regulator etc. during geological prospecting；In terms of medicine, can as antiinflammatory, only
Blood, antimicrobial DP finish additive；In terms of environmental protection, can as the adsorbent of heavy metal, coloured contaminant etc.,
Flocculant etc..As can be seen here, the humic acids in percolate can carry out recycling.
Humic acids is the mixture of a kind of complexity, according to its molecular size range, can be divided into fulvic acid, ulmic acid,
Humic acid, there is certain difference in the character of three, in actual application process, should be for respective property
Matter, proper use of different types of humic acids, just can give full play to it and be worth.Therefore, humic acids is carried out
Separate the most necessary.
At present, humic acids isolation technics is mainly film and processes membrance separation and gel filtration separation etc., but existing
Film process membrance separation humic acids out and yield poorly, and the fulvic acid of its part can only be separated, and
Most palm fibre, humic acid cannot separate；In gel filtration separation process, it is vulnerable to charge effect, physics
The harmful effect of the gathering of chemisorbed, molecule, pH, ionic strength and sample concentration etc..Meanwhile, gel mistake
Filter partition method there is also the difficult problems such as non-volume-exclusion effect.
Utility model content
The purpose of this utility model is aiming at the process of above-mentioned existing humic acids isolation technics and is yielded poorly,
The technological deficiency that purity is the highest, it is provided that the special purpose device of the technique that humic acids separates in a kind of percolate,
By the method for pretreatment, a ultrafiltration, second ultrafiltration and acid out precipitation, in percolate three kinds of corruption are planted
Acid is separated, and being finally recovered fulvic acid out can be as fertilizer, auxiliary pharmaceutical adjuvant etc., ulmic acid and black
Rotten acid can be as adsorbent, extender etc., it is achieved thereby that the resource of percolate, environmental benefit with
Remarkable in economical benefits.
Technical scheme
In order to realize above-mentioned technical purpose, the separating technology of humic acids in percolate, it is characterised in that
It includes following step:
(1) percolate is carried out pretreatment, obtain pretreatment water outlet；
(2) the pretreatment water outlet that step (1) obtains is carried out a ultrafiltration, obtain producing water and concentrated solution；
(3) concentrated solution that step (2) obtains is carried out second ultrafiltration, obtain fulvic acid solution and concentrated solution；
(4) concentrated solution that step (3) obtains is carried out acid out precipitation, obtain ulmic acid solution and precipitate with humic acid.
Further, percolate after the percolate in described step (1) is biochemistry or nanofiltration concentrated solution or
Reverse osmosis concentrated liquid, needs regulation water inlet pH value between 5～8 in preprocessing process；
Further, in described step (2), in a ultra-filtration process, pH is 5～8, and operation pressure is 1～2.5
MPa.
Further, in described step (3), during second ultrafiltration, pH is 5～8, and operation pressure is 1～2.5
MPa.
Further, described step (4) carries out acid out and precipitates the step that includes:
A () adds strong acid solution in the concentrated solution that step (3) obtains；
B () adjusts pH to 2.1～2.3, separated by humic acid from solution；
C () continues to adjust pH to≤2.0, separated by ulmic acid from solution.
Further, described step (4) carries out acid out and precipitates the step that includes:
A () adds strong acid solution in the concentrated solution that step (3) obtains, concentrated solution pH is adjusted to≤2.0, obtains
Ulmic acid and the mixture of humic acid；
B () isolates the mixture of ulmic acid and humic acid.
The special dress of the separating technology of humic acids in the percolate described in any of the above-described claim
Put, it is characterised in that: it mainly include raw water box, intake pump, pretreatment unit, ultra filtration unit,
Second ultrafiltration unit, acid out sedimentation tank, product water tank, fulvic acid case, ulmic acid case and humic acid case；
Described raw water box is connected with pretreatment unit, equipped with intake pump on connecting line, and pretreatment unit defeated
Going out end and connect a ultra filtration unit, the product water outfan of a ultra filtration unit connects product water tank, and concentrated solution exports
End connecting secondary ultra filtration unit, the product water outfan of second ultrafiltration unit connects fulvic acid case, and concentrated solution exports
End connects acid out sedimentation tank, and the clear liquid outfan of acid out sedimentation tank connects ulmic acid case, and precipitate outfan is even
Connect humic acid case.
Further, a described ultra filtration unit and second ultrafiltration unit are equipped with filter and circulating pump, with
And special film assembly.
Further, described acid out sedimentation tank is provided with chemicals dosing plant and blender.
Beneficial effect
Technique that in a kind of percolate that this utility model provides, humic acids separates and special purpose device thereof are logical
The method of pretreatment, a ultrafiltration, second ultrafiltration and acid out precipitation of crossing is by percolate three kinds of humic acidss
Separating, being finally recovered fulvic acid out can be as fertilizer, auxiliary pharmaceutical adjuvant etc., ulmic acid and black corruption
Acid can be as adsorbent, extender etc., it is achieved thereby that the resource of percolate, environmental benefit and warp
Ji remarkable benefit.
Accompanying drawing explanation
Accompanying drawing 1 is the process chart of this utility model embodiment.
Accompanying drawing 2 is the equipment connecting relation schematic diagram of this utility model embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, this utility model is described further.
Embodiment
As shown in Figure 2, the special purpose device of the separating technology of humic acids in percolate, it includes former water
Case 1, intake pump 2,3, ultra filtration unit 4 of pretreatment unit, second ultrafiltration unit 5, acid out precipitate
Pond 6, product water tank 7, fulvic acid case 8, ulmic acid case 9 and humic acid case 10；
Described raw water box 1 is connected with pretreatment unit 3, equipped with intake pump 2 on connecting line, and pretreatment list
The outfan of unit 3 connects a ultra filtration unit 4, and the product water outfan of a ultra filtration unit 4 connects product water tank
7, concentrated solution outfan connecting secondary ultra filtration unit 5, the product water outfan of second ultrafiltration unit 5 connects yellow humic
Acid case 8, concentrated solution outfan connects acid out sedimentation tank 6, and the clear liquid outfan of acid out sedimentation tank 6 connects palm fibre
Rotten acid case 9, precipitate outfan connects humic acid case 10.
A described ultra filtration unit 4 is equipped with filter and circulating pump, Yi Jite in second ultrafiltration unit 5
Different membrane module.
Described acid out sedimentation tank 6 is provided with chemicals dosing plant and blender.
Above-mentioned special purpose device is utilized to carry out the technical process that in percolate, humic acids separates as follows:
The first step, by percolate bio-chemical effluent, or nanofiltration concentrated solution, or reverse osmosis concentrated liquid feeding is pre-
Processing system, regulation inlet flow-patterm, between 5～8, carries out pretreatment, obtains pretreatment water outlet；
Second step, a ultrafiltration system is sent in the pretreatment water outlet first step obtained, pH=5～8, behaviour
Under conditions of pressure is 1～2.5 MPa, waste water first passes around filter and removes the SS in water, colloid etc. greatly
Molecule particles thing, is then fed into a ultra filtration unit, carries out concentrating and separating, the product water discharge obtained, and obtains
Concentrated solution in mainly contain fulvic acid, ulmic acid and humic acid；
3rd step, the concentrated solution obtained by second step sends into second ultrafiltration system, in pH=5～8, operation pressure
Under conditions of power is 1～2.5 MPa, waste water first passes around filter and removes big point of the SS in water, colloid etc.
Sub-particulate matter, is then fed into second ultrafiltration unit, carries out concentrating and separating, and the product water obtained is fulvic acid solution,
The concentrated solution obtained mainly contains ulmic acid and humic acid；
4th step, the concentrated solution the 3rd step obtained sends into acid out sedimentation tank, strong by adding in concentrated solution
Acid solution, then can separate ulmic acid and humic acid: mode one can be undertaken in two steps in two ways:
The first step adjusts pH to 2.1～2.3, is separated by humic acid from solution；Second step continues to adjust pH
To≤2.0, ulmic acid is separated from solution.Mode two is the concentrated solution directly the 3rd step obtained
PH is adjusted to≤2.0, isolates the mixture of ulmic acid and humic acid.
First this utility model carries out pretreatment to humic acids in percolate, then carries out a ultrafiltration,
Obtaining producing water and concentrated solution, concentrated solution carries out second ultrafiltration again, obtains fulvic acid solution and concentrated solution, concentrates
Liquid carries out acid out precipitation again, isolates ulmic acid and humic acid, thus by percolate three kinds of humic acidss
It is totally separated out.The fulvic acid that this utility model is separated can be as fertilizer, auxiliary pharmaceutical adjuvant etc., palm fibre
Rotten acid can be as adsorbent, extender etc. with humic acid, it is achieved that the resource of percolate.
Claims (3)
1. the special purpose device of the separating technology of humic acids in percolate, it is characterised in that: it includes former
Water tank (1), intake pump (2), pretreatment unit (3), ultra filtration unit (4), second ultrafiltration unit (5),
Acid out sedimentation tank (6), product water tank (7), fulvic acid case (8), ulmic acid case (9) and humic acid case (10)；
Described raw water box (1) is connected with pretreatment unit (3), equipped with intake pump (2) on connecting line, locates in advance
The outfan of reason unit (3) connects a ultra filtration unit (4), and the product water outfan of a ultra filtration unit (4) is even
Practice midwifery water tank (7), concentrated solution outfan connecting secondary ultra filtration unit (5), the product water of second ultrafiltration unit (5)
Outfan connects fulvic acid case (8), and concentrated solution outfan connects acid out sedimentation tank (6), acid out sedimentation tank (6)
Clear liquid outfan connect ulmic acid case (9), precipitate outfan connect humic acid case (10).
2. the special purpose device of the separating technology of humic acids in percolate as claimed in claim 1, its
It is characterised by: a described ultra filtration unit (4) and second ultrafiltration unit (5) are equipped with filter and circulation
Pump, and special film assembly.
3. the special purpose device of the separating technology of humic acids in percolate as claimed in claim 1, its
It is characterised by: described acid out sedimentation tank (6) is provided with chemicals dosing plant and blender.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620418881.3U CN205653265U (en) | 2016-05-10 | 2016-05-10 | Separation technology's of rotten phytic acid isolated plant among landfill leachate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620418881.3U CN205653265U (en) | 2016-05-10 | 2016-05-10 | Separation technology's of rotten phytic acid isolated plant among landfill leachate |
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|---|---|
| CN205653265U true CN205653265U (en) | 2016-10-19 |
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| CN201620418881.3U Active CN205653265U (en) | 2016-05-10 | 2016-05-10 | Separation technology's of rotten phytic acid isolated plant among landfill leachate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800832A (en) * | 2016-05-10 | 2016-07-27 | 上海晶宇环境工程股份有限公司 | Separating process for humic acids in garbage leachate and special device for separating process |
| CN110002639A (en) * | 2019-04-29 | 2019-07-12 | 桂润环境科技股份有限公司 | A kind of processing unit and method of middle and advanced stage aged refuse in MSW landfill percolate |
-
2016
- 2016-05-10 CN CN201620418881.3U patent/CN205653265U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800832A (en) * | 2016-05-10 | 2016-07-27 | 上海晶宇环境工程股份有限公司 | Separating process for humic acids in garbage leachate and special device for separating process |
| CN110002639A (en) * | 2019-04-29 | 2019-07-12 | 桂润环境科技股份有限公司 | A kind of processing unit and method of middle and advanced stage aged refuse in MSW landfill percolate |
| CN110002639B (en) * | 2019-04-29 | 2020-06-19 | 桂润环境科技股份有限公司 | Device and method for treating landfill leachate of middle and late-stage domestic garbage landfill |
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