CN201722265U - Leaching device for removing heavy metals from sewage sludge - Google Patents
Leaching device for removing heavy metals from sewage sludge Download PDFInfo
- Publication number
- CN201722265U CN201722265U CN2010202466713U CN201020246671U CN201722265U CN 201722265 U CN201722265 U CN 201722265U CN 2010202466713 U CN2010202466713 U CN 2010202466713U CN 201020246671 U CN201020246671 U CN 201020246671U CN 201722265 U CN201722265 U CN 201722265U
- Authority
- CN
- China
- Prior art keywords
- drip washing
- leacheate
- pipe connecting
- sebific duct
- washing post
- 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.)
- Expired - Fee Related
Links
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 18
- 238000002386 leaching Methods 0.000 title abstract 10
- 239000010801 sewage sludge Substances 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 25
- 238000005406 washing Methods 0.000 claims description 59
- 238000010828 elution Methods 0.000 claims description 19
- 238000003756 stirring Methods 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 9
- 239000010802 sludge Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 abstract description 2
- 231100000614 poison Toxicity 0.000 abstract 1
- 230000007096 poisonous effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 239000003480 eluent Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 231100000611 venom Toxicity 0.000 description 2
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
- RGHNJXZEOKUKBD-SQOUGZDYSA-N Gluconic acid Natural products OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a leaching device for removing heavy metals from sewage sludge, comprising a water storage tank and a leacheate storage tank. The leaching device is characterized in that the water storage tank is connected with an input end of a first passage of a first peristaltic pump by a connecting pipe; the leacheate storage tank is connected with an input end of a second passage of the first peristaltic pump by a connecting pipe; output ends of the first passage and the second passage of the first peristaltic pump are connected with the upper end of an upper leaching pump by the connecting pipes; the lower end of an upper leaching cylinder is connected with the upper end of a lower leaching cylinder by the connecting pipe; the bottom end of the lower leaching cylinder is provided with two rubber pipe outlets; the first rubber pipe outlet is connected with a water collecting tank; and the second rubber pipe outlet is connected with a leacheate collecting tank. A second peristaltic pump is connected between the leacheate collecting tank and the upper end of the upper leaching cylinder by the connecting pipe. A filter film is paved at the bottom of the lower leaching cylinder. The leaching device can thoroughly leach the sewage sludge, can carry out secondary utilization on the leacheate, and can control the poisonous and harmful substances.
Description
Technical field
The utility model relates to a kind of elution device that removes sludge heavy-metal, belongs to the reparation field of heavy-metal contaminated soil and mud.
Background technology
Heavy metal is widely used in modern industry, generally is used for plating, printing and dyeing and catalysis industry etc.But in a single day imappropriate to its management and disposal, can cause serious environmental to pollute and social effects of pollution.Heavy metal contamination has ubiquity, non-reversibility and enriching, is described as " Chemical Time Bomb " in the present age.Heavy metal is the energy stable existence in environment, can not be decomposed, and is difficult to be reduced.Some can be combined into the organic heavy metal compound with organism, by plant is absorbed, and some water that permeates the ground, and then enter food chain, high multiple enrichment causes serious harm to human body in human body.
Drip-rinsing process is that elution device is one of core of drip-rinsing process to the most effective treatment process of heavy metal contamination mud.Determined on the basis of processing parameters such as good eluent composition, concentration, consumption, solid-to-liquid ratio, temperature in the laboratory, designing dynamic elution device can handle the mud be rich in heavy metal for drip washing in large quantity and lay a solid foundation, make mud can become novel agglomerated material and composting material, can turn waste into wealth, create the output value, also can play positive pushing effect for the improvement of environment.
Dynamically the elution device of mud elution device and normal soil is very different.Guarantee that its elute effect is topmost problem.At elute effect, need regularly, quantitative sampling, so that can well hold the influence of time, flow, number of times to the heavy metal elution amount.
Traditional mud elution device main body is one section hollow cylinder, and the lower end is a filter membrane, is used to intercept mud and flows away with eluent.Mud is injected into suitable height from cylinder is suitable for reading, and leacheate is injected by the cylinder upper end, is flow to the liquid storing pool of lower end behind the earth pillar of flowing through by the filtrate film at the bottom of post, then filtrate component is analyzed to detect the drip washing effect.Right because the mud organic content is very high, eluent is that dynamically and directionally flows, and the Sludge Surface hydrophobic group can intercept fully contacting of water and mud, and mud can be because the surface properties of self be formed agglomerate, and contained heavy metal is very difficult to be come out by wash-out.Before drip washing, allow mud fully contact with water, change Sludge Surface character, can play very big help to the drip washing effect of performance leacheate the best.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of can to mud carry out thorough drip washing, to leacheate can second stage employ, the elution device that removes sludge heavy-metal that venomous injurant mass-energy is controlled.
The technical scheme that provides according to the utility model, the described elution device that removes sludge heavy-metal, comprise water storage tank and leacheate storage tank, feature is: described water storage tank utilizes pipe connecting to be connected with the input terminus of the first channel of first peristaltic pump, and described leacheate storage tank utilizes pipe connecting to be connected with the input terminus of the second passage of first peristaltic pump; The first channel of first peristaltic pump all utilizes pipe connecting to be connected with the upper end of last drip washing pump with the output terminal of second passage; Described lower end of going up the drip washing post utilizes pipe connecting to be connected with the upper end of following drip washing post; Be provided with two sebific ducts outlets in the bottom of following drip washing post, the outlet of first sebific duct is connected with water collecting tank, and the outlet of second sebific duct is connected with the leacheate holding tank.
Between the upper end of described leacheate holding tank and last drip washing post, utilize pipe connecting to connect second peristaltic pump.
Be equipped with filter membrane in the described bottom of drip washing post down.
The upper end of drip washing post is provided with electric mixer on described, is provided with stirring rake on electric mixer, and described stirring rake stretches in the drip washing post.
On first sebific duct outlet of described down drip washing jar bottom and the pipe connecting between the water collecting tank, second sebific duct folder is set, on the pipe connecting between the outlet of second sebific duct and the leacheate holding tank, the 3rd sebific duct is set and presss from both sides.
End at the pipe connecting of the second passage output terminal of described first peristaltic pump is equipped with the leacheate shower nozzle.
First sebific duct folder is set on the pipe connecting on described between drip washing post and the following drip washing post.
Outside two sebific duct outlets of described drip washing post bottom down, hitch is set.
The utility model can allow mud fully contact with leacheate at Sludge Surface character, and can investigate repeatedly drip washing effect variation tendency, and sampling, test sample is simple and convenient; Can to mud carry out thorough drip washing, to leacheate can second stage employ, venomous injurant mass-energy is controlled.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of following drip washing post.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As Fig. 1～shown in Figure 2: elution device comprises water storage tank 1, leacheate storage tank 2, first peristaltic pump 3, electric mixer 4, leacheate shower nozzle 5, stirring rake 6, goes up drip washing post 7, first sebific duct folder 8, drip washing post 9, filter membrane 10, second sebific duct folder 11, water collecting tank 12, the 3rd sebific duct folder 13, leacheate holding tank 14, second peristaltic pump 15, hitch 16 etc. down.
The utility model comprises water storage tank 1 and leacheate storage tank 2, and described water storage tank 1 utilizes pipe connecting to be connected with the input terminus of the first channel of first peristaltic pump 3, and leacheate storage tank 2 utilizes pipe connecting to be connected with the input terminus of the second passage of first peristaltic pump 3; The first channel of first peristaltic pump 3 all utilizes pipe connecting to be connected with the upper end of last drip washing pump 7 with the output terminal of second passage, in the end of the pipe connecting of second passage output terminal leacheate shower nozzle 5 is installed; Described lower end of going up drip washing post 7 utilizes pipe connecting to be connected with the upper end of following drip washing post 9, and first sebific duct folder 8 is set on pipe connecting; Be provided with two sebific ducts outlets in the following bottom of drip washing post 9, and the outlet of hitch 16, the first sebific ducts is set is connected with water collecting tank 12 in that two sebific ducts outlets are outer, second sebific duct exports and is connected with leacheate holding tank 14;
Second sebific duct folder 11 is set on the pipe connecting between outlet of first sebific duct and the water collecting tank 12, the 3rd sebific duct folder 13 is set on the pipe connecting between outlet of second sebific duct and the leacheate holding tank 14;
Be equipped with filter membrane 10 in the described bottom of drip washing post 9 down; The upper end of drip washing post 7 is provided with electric mixer 4 on described, is provided with stirring rake 6 on electric mixer 4, and described stirring rake 6 stretches in the drip washing post 7;
Between the upper end of leacheate holding tank 14 and last drip washing post 7, utilize pipe connecting to connect second peristaltic pump 15.
Working process of the present utility model: inject certain water gaging and eluent respectively in water storage tank 1 and leacheate storage tank 2, first peristaltic pump 3 can be offered corresponding port number according to different concns, flow velocity, the temperature of leacheate.A flexible pipe passes to below the water surface, and another passes to below the leacheate liquid level.The drip washing post divides two up and down, and last drip washing post 7 is used for the sliming of mud, and following drip washing post 9 is used for the drip washing to mud, and is middle with hose connection, establishes first sebific duct folder 8.The last drip washing post 7 outer electric mixers 4 of settling are connected into 6 one of stirring rakes, are used for the mixing of water and mud.Following drip washing post 9 bottoms lead to two flexible pipes, are directed at respectively in water collecting tank 12 and the leacheate holding tank 14, and flexible pipe clamps with second sebific duct folder the 11, the 3rd sebific duct folder 13.
The eluent composition that adopts is the gluconic acid of 50mmol/L, and leacheate is stored in the leacheate storage tank 2, and the port number of first peristaltic pump 3 is 2, is used to feed distilled water together, is used to feed leacheate together.Water flow velocity does not have strict the qualification, moderate getting final product, and the water yield is about 10 times of sludge quality.The leacheate flow velocity is made as 10mL/min.In last drip washing post 7, put into a certain amount of mud, utilize flexible pipe to link to each other with the outlet of the following drip washing post 9 and first peristaltic pump 3.Open the first channel of first peristaltic pump 3, water flowing enters drip washing post 7, starts electric mixer 4, stir by 6 pairs of mud of stirring rake and water, make mud and water thorough mixing, to be mixed finishing, after mud forms mud, open first sebific duct folder 8, make mud flow into down drip washing post 9 from top to bottom.Unclamp second sebific duct folder 11, free water sees through filter membrane 10 and enters water collecting tank 12.Treat water all through behind the filter membrane 10, clamp second sebific duct folder 11.With water collecting tank 12 turned letters.
Open the 3rd sebific duct folder 13, advance to go up drip washing post 7 with the treating stranguria washing lotion of certain flow rate, be the sprinkling state, scrub the mud that remains on drip washing post 7 and the stirring rake 6 through shower nozzle 5, and, see through filter membrane 10 afterwards and flow to leacheate holding tank 14 through flexible pipe from top to bottom through the mud of 9 li on following drip washing post.Simultaneously, the wherein mensuration of heavy metal content is carried out in laboratory technician's sampling.After drip washing finishes, clamp the 3rd sebific duct folder 13.In leacheate holding tank 14, add the modified alta-mud of capacity, fully absorb the heavy metal ion in the elutriant.
The input terminus flexible pipe of second peristaltic pump 15 is immersed below the liquid level of leacheate holding tank 14, feed in the supreme drip washing post 7 of leacheate, mud is carried out secondary drip washing.Elutriant sees through filter membrane 10, flows in the water collecting tank 12 through flexible pipe.
Claims (8)
1. elution device that removes sludge heavy-metal, comprise water storage tank (1) and leacheate storage tank (2), it is characterized in that: described water storage tank (1) utilizes pipe connecting to be connected with the input terminus of the first channel of first peristaltic pump (3), and described leacheate storage tank (2) utilizes pipe connecting to be connected with the input terminus of the second passage of first peristaltic pump (3); The first channel of first peristaltic pump (3) and the output terminal of second passage all utilize pipe connecting to be connected with the upper end of last drip washing pump (7); Described lower end of going up drip washing post (7) utilizes pipe connecting to be connected with the upper end of following drip washing post (9); Be provided with two sebific ducts outlets in the bottom of following drip washing post (9), the outlet of first sebific duct is connected with water collecting tank (12), and the outlet of second sebific duct is connected with leacheate holding tank (14).
2. elution device as claimed in claim 1 is characterized in that: utilize pipe connecting to connect second peristaltic pump (15) between the upper end of described leacheate holding tank (14) and last drip washing post (7).
3. elution device as claimed in claim 1 is characterized in that: be equipped with filter membrane (10) in the described bottom of drip washing post (9) down.
4. elution device as claimed in claim 1 is characterized in that: the upper end of drip washing post (7) is provided with electric mixer (4) on described, is provided with stirring rake (6) on electric mixer (4), and described stirring rake (6) stretches in the drip washing post (7).
5. elution device as claimed in claim 1, it is characterized in that: on the pipe connecting between first sebific duct outlet of described down drip washing jar (9) bottom and the water collecting tank (12), second sebific duct folder (11) is set, on the pipe connecting between outlet of second sebific duct and the leacheate holding tank (14), the 3rd sebific duct is set and presss from both sides (13).
6. elution device as claimed in claim 1 is characterized in that: the end at the pipe connecting of the second passage output terminal of described first peristaltic pump (3) is equipped with leacheate shower nozzle (5).
7. elution device as claimed in claim 1 is characterized in that: first sebific duct folder (8) is set on the pipe connecting on described between drip washing post (7) and the following drip washing post (9).
8. elution device as claimed in claim 1 is characterized in that: outside two sebific duct outlets of described drip washing post (9) bottom down hitch (16) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202466713U CN201722265U (en) | 2010-06-25 | 2010-06-25 | Leaching device for removing heavy metals from sewage sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202466713U CN201722265U (en) | 2010-06-25 | 2010-06-25 | Leaching device for removing heavy metals from sewage sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201722265U true CN201722265U (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202466713U Expired - Fee Related CN201722265U (en) | 2010-06-25 | 2010-06-25 | Leaching device for removing heavy metals from sewage sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201722265U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102240666A (en) * | 2011-06-02 | 2011-11-16 | 中国科学院武汉岩土力学研究所 | Heavy metal polluted soil leaching and remediating device |
| CN102950148A (en) * | 2011-08-19 | 2013-03-06 | 中国科学院沈阳应用生态研究所 | Experiment apparatus for removing pollutants from soil, and method thereof |
| CN103639192A (en) * | 2013-12-17 | 2014-03-19 | 辽宁石油化工大学 | Method for restoring lead polluted soil by rinsing |
| CN110542605A (en) * | 2019-09-11 | 2019-12-06 | 中国农业大学 | Device for evaluating fertilizer nutrient release and leaching and using method |
-
2010
- 2010-06-25 CN CN2010202466713U patent/CN201722265U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102240666A (en) * | 2011-06-02 | 2011-11-16 | 中国科学院武汉岩土力学研究所 | Heavy metal polluted soil leaching and remediating device |
| CN102240666B (en) * | 2011-06-02 | 2012-12-05 | 中国科学院武汉岩土力学研究所 | Heavy metal polluted soil leaching and remediating device |
| CN102950148A (en) * | 2011-08-19 | 2013-03-06 | 中国科学院沈阳应用生态研究所 | Experiment apparatus for removing pollutants from soil, and method thereof |
| CN103639192A (en) * | 2013-12-17 | 2014-03-19 | 辽宁石油化工大学 | Method for restoring lead polluted soil by rinsing |
| CN110542605A (en) * | 2019-09-11 | 2019-12-06 | 中国农业大学 | Device for evaluating fertilizer nutrient release and leaching and using method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20190625 |
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| CF01 | Termination of patent right due to non-payment of annual fee |