CN105600999A - Solid-liquid separation equipment and solid-liquid separation technology - Google Patents
Solid-liquid separation equipment and solid-liquid separation technology Download PDFInfo
- Publication number
- CN105600999A CN105600999A CN201610177893.6A CN201610177893A CN105600999A CN 105600999 A CN105600999 A CN 105600999A CN 201610177893 A CN201610177893 A CN 201610177893A CN 105600999 A CN105600999 A CN 105600999A
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- Prior art keywords
- solid
- coagulative precipitation
- liquid
- precipitation tank
- oxidation
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Classifications
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- 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
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- 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
-
- 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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
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- 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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
Abstract
The invention discloses solid-liquid separation equipment which comprises a coagulative precipitation tank and an oxidation pond, wherein the coagulative precipitation tank is used for carrying out coagulative precipitation on a solid-liquid mixture; the oxidation pond is used for carrying out oxidation reaction on the solid-liquid mixture; and an outlet of the oxidation pond is communicated with an inlet of the coagulative precipitation tank. The solid-liquid separation equipment carries out oxidation reaction on the solid-liquid mixture before coagulative precipitation, so that the hydrophilicity of hydrophilic colloid is changed, meanwhile, the kinetic energy of the hydrophilic colloid and hydrophobic colloid is improved, the colloid is relatively easily absorbed into a flocculent form, and thus the problem of poor solid-liquid separation effect is effectively solved. The invention further discloses a solid-liquid separation technology.
Description
Technical field
The present invention relates to impurity treatment facility field, more particularly, relate to a kind of solid-liquid separating equipment,Also relate to a kind of solid-liquid separation process.
Background technology
Solid-liquid poly-doped impurity common in existing production need to carry out Separation of Solid and Liquid, and common solid-liquid mixesImpurity be the dispersion taking solid matter as dispersate, taking water as dispersant. And for colloid whereinDispersion is the material that in prior art, current urgent need will be carried out Separation of Solid and Liquid.
Colloid in colloidal dispersion system is generally divided into increasing liquogel or lyophilic colloid, wherein lyophilic colloidClaim Polymer Solution, wherein have the hydrophilic colloid that becomes of good affinity with hydrone, hydrophilic colloidSolid portion is wrapped in a large water hull, and common protein, hydrocarbon are with many complexityOrganic matter can both form hydrophilic colloid. And also there is accordingly hydrophobic colloid, wherein hydrophobic colloid is notCan there is hydration phenomena. Wherein hydrophilic colloid and water form true solution, this solution in the ordinary course of things,Can keep stable state, and contrary, for hydrophobic colloid, hydrophobic colloid and water mix itAfter, can be by leaving standstill to realize separating of hydrophobic colloid and water, but for hydrophobic colloid,In the relatively long time, hydrophobic colloid still remains on the state of dispersion, and hydrophobic colloid exists certainKinetic stability.
Prior art is for Separation of Solid and Liquid, and what usually adopt is that the mode of coagulating sedimentation is carried out Separation of Solid and Liquid,In waste liquid, increase coagulant, coagulant is gathered in for colloidal particles of water is bondd to close mutuallyTogether, and then form the larger floccule of volume, and then floccule is separated. But because hydrophobicColloid is in the early stage in stable state, and the adsorption effect of coagulant is not fine, and because hydrophilic gelThe existence of body, the hydrophilic colloid that part exists cannot be adsorbed by coagulant.
In sum, how effectively solving the bad problem of solid-liquid separation effect, is current this area skillArt personnel's urgent problem.
Summary of the invention
In view of this, first object of the present invention is to provide a kind of solid-liquid separating equipment, and this solid-liquid dividesCan effectively solve the bad problem of solid-liquid separation effect from equipment, second object of the present invention is to carryFor a kind of solid-liquid separation process.
In order to reach above-mentioned first object, the invention provides following technical scheme:
A kind of solid-liquid separating equipment, comprises the coagulative precipitation tank for solidliquid mixture being carried out to coagulating sedimentation,Also comprise the oxidation pond for solidliquid mixture being carried out to oxidation reaction, the outlet of described oxidation pond with described inThe import of coagulative precipitation tank is communicated with.
Preferably, in described coagulative precipitation tank, be provided with for being reaction zone by spatial separation in pond and leaving standstillThe dividing plate in district, the upper end of described demarcation strip is arranged at the passage for reaction zone is communicated with standing district.
Preferably, the import of described coagulative precipitation tank is arranged on the lower end of its reaction zone.
Preferably, in the reaction zone of described coagulative precipitation tank, be provided with aeration tube, in described oxidation pond, arrangeThere is aeration tube.
Preferably, the import of described oxidation pond is arranged on a side lower end, import are arranged on the upper of opposite sideEnd.
Preferably, the lower end of described coagulative precipitation tank is provided with and is obconic storage mud groove, and described storageThe mud mouth of mud groove is arranged on lower end.
Preferably, the oxidant in described oxidation pond is Fenton reagent.
A kind of solid-liquid separating equipment provided by the invention, comprises that coagulation becomes sedimentation basin and oxidation pond, wherein mixedCoagulant in solidifying sedimentation basin can carry out coagulating sedimentation to the solid in solidliquid mixture. Wherein oxidation pondFor solidliquid mixture is carried out to oxidation reaction, wherein the outlet of oxidation pond and the import of coagulative precipitation tank connectLogical, solidliquid mixture carries out after oxidation reaction in oxidation pond, can flow out from the outlet of oxidation pond, andFlow into coagulative precipitation tank from the import of coagulative precipitation tank, the solid-liquid that enters into coagulative precipitation tank mixesThing can carry out coagulating sedimentation.
According to above-mentioned technical scheme, can know, before solidliquid mixture is carried out to coagulating sedimentation,Solidliquid mixture can be incorporated in oxidation pond, by the oxidant in oxidation pond, solidliquid mixture be carried outPre-oxidation. By oxidant, the organic matters such as oxidized protein, and hydrophilic colloid is exposed from water hullCome the organic matter coming out and then can reassemble into bulky grain colloid, and mixed by the later stage very easilySolidifying agent absorption. Because the activity of oxidant is stronger, can also improve colloid kinetic energy simultaneously, comprise hydrophobic glueThe kinetic energy of body, makes hydrophobic colloid depart from stable state, and then has improved the adsorption effect of later stage coagulant,And then improve the effect of coagulating sedimentation. So this solid-liquid separating equipment is because mixing solidliquid mixtureRetrogradation is carried out oxidation reaction to solidliquid mixture before forming sediment, and has changed the hydrophily of hydrophilic colloid, simultaneouslyThe kinetic energy that improves hydrophilic colloid and hydrophobic colloid, is more easily adsorbed colloid and is flocculence, and then effectivelySolve the bad problem of solid-liquid separation effect.
In order to reach above-mentioned second object, the invention provides following technical scheme:
A kind of solid-liquid separation process, comprising: step 1, solidliquid mixture is carried out to oxidation processes; Step 2,Described solidliquid mixture is carried out to coagulating sedimentation processing.
Preferably, be Fenton reagent for the oxidant that described solidliquid mixture is carried out to oxidation reaction.
A kind of solid-liquid separation process and above-mentioned solid-liquid separating equipment that second object of the present invention provides, beCan improve solid-liquid separation effect, its core is all in advance waste liquid to be carried out to oxidation processes, makes hydrophilicColloid out, and makes hydrophilic colloid and hydrophobic colloid all improve colloid kinetic energy from water hull, then can carryThe adsorption effect of high coagulant. So the beneficial effect of this solid-liquid separation process can divide with reference to above-mentioned solid-liquidFrom equipment.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will be to realityThe accompanying drawing of executing required use in example or description of the Prior Art is briefly described, apparently, belowAccompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art,Do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the solid-liquid separating equipment that Fig. 1 provides for the embodiment of the present invention.
In accompanying drawing, mark is as follows:
Coagulative precipitation tank 1, oxidation pond 2, dividing plate 11, storage mud groove 12.
Detailed description of the invention
The embodiment of the invention discloses a kind of solid-liquid separating equipment, this solid-liquid separating equipment can be separated effectivelyThe certainly bad problem of solid-liquid separation effect.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried outDescribe clearly and completely, obviously, described embodiment is only the present invention's part embodiment, andNot whole embodiment. Based on the embodiment in the present invention, those of ordinary skill in the art are not doingGo out the every other embodiment obtaining under creative work prerequisite, all belong to the scope of protection of the invention.
Refer to Fig. 1, the structural representation of the solid-liquid separating equipment that Fig. 1 provides for the embodiment of the present invention.
In a kind of specific embodiment, the present embodiment provides a kind of solid-liquid separating equipment, comprises that coagulation is heavyPond, shallow lake 1 and oxidation pond 2, wherein the coagulant in coagulative precipitation tank 1 can enter the solid in solidliquid mixtureRow coagulating sedimentation, solid particle in concrete coagulant absorption mixture, so that form floccule, solidThe volume ratio of the floccule that particle aggregation forms is larger, and then compares solid small particles, more easily precipitation, andThe speed of precipitation is much larger than solid granule. Concrete coagulant can be the thing such as aluminum sulfate, ferric trichlorideMatter.
Wherein oxidation pond 2, for solidliquid mixture is carried out to oxidation reaction, it should be noted that herein, solid-liquidIn mixture, have a lot of molecules, said solidliquid mixture is carried out to oxidation reaction herein, not referring to mustMust carry out oxidation reaction to molecules all in solidliquid mixture, but at least carry out with a kind of molecule whereinOxidation reaction, and because can there is the hydrophilic colloids such as protein in solidliquid mixture, and adding oxidantAfterwards, in the time there is protein-based hydrophilic colloid, the hydrophilic colloid that oxidant can be preferential and protein-basedThere is oxidation reaction. What emphasize is that oxidation pond 2 is for solidliquid mixture is carried out to oxidation reaction, specifically hereinBe the effect that reaches oxidation by oxidant, concrete oxidant can be hydrogen peroxide, perchlorate etc.Material. Wherein the outlet of oxidation pond 2 is communicated with the import of coagulative precipitation tank 1, and solidliquid mixture is in oxidationIn pond 2, carry out after oxidation reaction, can flow out from the outlet of oxidation pond 2, and flow from the import of coagulative precipitation tank 1Enter in coagulative precipitation tank 1, the solidliquid mixture that enters into coagulative precipitation tank 1 can carry out coagulating sedimentation.
In the present embodiment, before solidliquid mixture is carried out to coagulating sedimentation, solidliquid mixture can be drawnEnter in oxidation pond 2, by the oxidant in oxidation pond 2, solidliquid mixture is carried out to pre-oxidation. Pass through oxygenAgent, the organic matters such as oxidized protein, and hydrophilic colloid is come out from water hull, come outOrganic matter and then can reassemble into bulky grain colloid, and very easily adsorbed by the coagulant in later stage. SimultaneouslyBecause the activity of oxidant is stronger, can also improve colloid kinetic energy, comprise the kinetic energy of hydrophobic colloid, make to hateHydrocolloid departs from stable state, and then has improved the adsorption effect of later stage coagulant, and then has improved coagulationThe effect of precipitation. So this solid-liquid separating equipment is because of before solidliquid mixture is carried out to coagulating sedimentation, rightSolidliquid mixture carries out oxidation reaction, has changed the hydrophily of hydrophilic colloid, improve simultaneously hydrophilic colloid andThe kinetic energy of hydrophobic colloid, makes colloid more easily be adsorbed into flocculence, and then has effectively solved Separation of Solid and LiquidThe problem that effect is bad. Meanwhile, oxidation reaction can effectively lower waste liquid in the concentration of reductive organic matter,And then can alleviate waste liquid subsequent treatment difficulty.
In oxidation pond 2, can be wherein peroxide for the oxidant that waste liquid is carried out to oxidation reaction, also canTo be other material. In order to reach better coagulation effect, can make oxidant is Fenton reagent,Fenton reagent comprises ferrous ion and hydrogen peroxide, and ferrous ion and hydrogen peroxide are prepared according to a certain percentage.Wherein ferrous ion and hydrogen peroxide form hydroxyl radical free radical, have stronger oxidisability, fast oxygenChange protein-based organic matter, and can effectively improve colloid kinetic energy. And wherein ferrous ion can be oxidizedThe iron ion that becomes to have flocculating effect, the iron ion of generation can be the hydrophilic colloid that breaks out from water hullBe attached together, to reduce the hydrophily of hydrophilic colloid. And then improve the coagulating sedimentation in coagulative precipitation tank 1Effect.
In coagulative precipitation tank 1, in order to ensure the effect of coagulating sedimentation, generally can to added coagulant itAfter solidliquid mixture leave standstill processing, to ensure that floccular sediment generates and sedimentary precipitation.In order to make to there is better sedimentation effect in coagulative precipitation tank 1, can in coagulative precipitation tank 1, be provided with useIn by pond, spatial separation becomes the dividing plate 11 in reaction zone and standing district, and is provided with use in the upper end of dividing plate 11In the passage that reaction zone is communicated with standing district. In the time adding coagulant to reaction zone, because dividing plate 11Exist, effectively avoid coagulant to be distributed to fast and leave standstill in district, and then can effectively ensure reactionThe concentration of the coagulant in district, has ensured that coagulant fully adsorbs solid housing. Simultaneously in order to ensure coagulationThe adsorption effect of agent, can make the import of coagulative precipitation tank 1 be arranged on the lower end of reaction zone, so that coagulationAgent fully contacts with colloid in solidliquid mixture, and then can improve adsorption effect. For reaction zone, forAccelerated reaction, can realize by improving the kinetic energy of liquid, concrete can making arranges in reaction zoneHave aeration tube, the gas by aeration tube not only can agitated liquid, can also strengthen liquid air content, withColloid is contacted with coagulant fully.
The lower end of coagulative precipitation tank 1 is storage mud groove 12, in solidliquid mixture, because the effect of coagulant,Form cotton-shaped solid matter, can be because of the former of gravity thereby decline, until at the bottom of pond, at the bottom of pond in liquidThen formed storage mud groove 12, the bottom land of storage mud groove 12 is set to flat, be preferably herein skewed,Concrete, can make to store up mud groove 12 and be turbination, and the mud mouth of storage mud groove 12 is arranged on to lower end,Conical storage mud groove 12 is set, can effectively makes mud drain, mud be herein flocculent depositThing.
Oxidation pond 2, for solidliquid mixture is carried out to oxidation reaction, needs to carry out fully with solidliquid mixtureContact, and should there is the enough reaction time. Wherein the interior meeting of oxidation pond 2 arranges import, solidliquid mixture meetingEnter from import, and oxidant also can put in pond from import, then carry out consolidating after oxidation reactionLiquid mixture enters into coagulative precipitation tank 1 from outlet. In order there to be better sedimentation effect, can makeThe import of oxidation pond 2 is arranged on the lower end of a side, and outlet is arranged on the upper end of opposite side so that import withOutlet has larger distance, to ensure abundant contact.
In another kind of specific embodiment, the present embodiment provides a kind of solid-liquid separation process, this Separation of Solid and LiquidTechnique comprises:
Step 1, carries out oxidation processes to solidliquid mixture, and oxidation processes herein refers to solid-liquid mixedIn compound, add oxidant, concrete oxidant is hydrogen peroxide, or Fenton reagent. Oxidant can be preferentialCarry out oxidation Decomposition with the protein existing in solidliquid mixture, also can destroy the water hull of hydrophilic colloid simultaneously,So that hydrophilic colloid is exposed to outside water hull, improve the kinetic energy of colloid. Wherein waste liquid is carried out to oxidation processesOxidant preferentially select Fenton reagent herein, concrete effect can be with reference to above-described embodiment.
Step 2, carries out coagulating sedimentation to above-mentioned solidliquid mixture, and above-mentioned solidliquid mixture herein refers toSolidliquid mixture after oxidation processes, carries out coagulating sedimentation to solidliquid mixture, is mainly to solid-liquidIn mixture, increase coagulant, coagulant by absorption solid particle to become cotton-shaped, and then can be effectivelyCarry out precipitate and separate.
In the solid-liquid separation process that the present embodiment adopts and a upper embodiment solid-liquid separating equipment, for energyEnough improve solid-liquid separation effect, its core is all in advance waste liquid to be carried out to oxidation processes, making hydrophilic colloidFrom water hull, out, and make hydrophilic colloid and hydrophobic colloid all improve colloid kinetic energy, then can improve mixedThe adsorption effect of solidifying agent. So the beneficial effect of the solid-liquid separation process that the present embodiment adopts can referenceAbove-described embodiment, does not repeat them here.
In this description, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stressesBe and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field can be realized or useThe present invention. To be aobvious and easy for those skilled in the art to the multiple amendment of these embodimentSee, General Principle as defined herein can be in the situation that not departing from the spirit or scope of the present invention,Realize in other embodiments. Therefore, the present invention will can not be restricted to these embodiment shown in this article,But to meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a solid-liquid separating equipment, comprises the coagulating sedimentation for solidliquid mixture being carried out to coagulating sedimentationPond (1), is characterized in that, also comprises the oxidation pond (2) for solidliquid mixture being carried out to oxidation reaction,The outlet of described oxidation pond (2) is communicated with the import of described coagulative precipitation tank (1).
2. solid-liquid separating equipment according to claim 1, is characterized in that, described coagulative precipitation tank(1) in, be provided with the dividing plate (11) for by spatial separation in pond being reaction zone and standing district, described everyThe upper end of plate (11) is arranged at the passage for reaction zone is communicated with standing district.
3. solid-liquid separating equipment according to claim 2, is characterized in that, described coagulative precipitation tank(1) import is arranged on the lower end of its reaction zone.
4. solid-liquid separating equipment according to claim 3, is characterized in that, described coagulative precipitation tank(1) in reaction zone, be provided with aeration tube, described oxidation pond is provided with aeration tube in (2).
5. solid-liquid separating equipment according to claim 4, is characterized in that, described oxidation pond (2)Import be arranged on the lower end of a side, the upper end that import is arranged on opposite side.
6. solid-liquid separating equipment according to claim 5, is characterized in that, described coagulative precipitation tank(1) lower end is provided with and is obconic storage mud groove (12), and the mud extraction of described storage mud groove (12)Mouth is arranged on lower end.
7. according to the solid-liquid separating equipment described in claim 1-6 any one, it is characterized in that described oxygenThe oxidant of changing in pond (2) is Fenton reagent.
8. a solid-liquid separation process, is characterized in that, comprising:
Step 1, carries out oxidation processes to solidliquid mixture;
Step 2, carries out coagulating sedimentation processing to solidliquid mixture.
9. solid-liquid separation process according to claim 8, is characterized in that, for solid-liquid is mixedThe oxidant that thing carries out oxidation reaction is Fenton reagent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610177893.6A CN105600999A (en) | 2016-03-25 | 2016-03-25 | Solid-liquid separation equipment and solid-liquid separation technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610177893.6A CN105600999A (en) | 2016-03-25 | 2016-03-25 | Solid-liquid separation equipment and solid-liquid separation technology |
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| Publication Number | Publication Date |
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| CN105600999A true CN105600999A (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610177893.6A Pending CN105600999A (en) | 2016-03-25 | 2016-03-25 | Solid-liquid separation equipment and solid-liquid separation technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430706A (en) * | 2016-09-29 | 2017-02-22 | 黄敬超 | Muddy water separator used for town and country construction and technology thereof |
| CN108751400A (en) * | 2018-06-11 | 2018-11-06 | 李晓伟 | A kind of urban sewage treating device |
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| CN1803672A (en) * | 2005-12-20 | 2006-07-19 | 沈阳建筑大学 | Method for treating micro-polluted source water |
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| CN205687683U (en) * | 2016-03-25 | 2016-11-16 | 东莞道汇环保科技有限公司 | A kind of solid-liquid separating equipment |
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Patent Citations (4)
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|---|---|---|---|---|
| KR20040084586A (en) * | 2003-03-25 | 2004-10-06 | 손을택 | Treatment method of wastewater containing recalcitrant compounds and apparatus therefor |
| CN1803672A (en) * | 2005-12-20 | 2006-07-19 | 沈阳建筑大学 | Method for treating micro-polluted source water |
| CN105399273A (en) * | 2015-11-17 | 2016-03-16 | 江苏省嘉庆水务发展有限公司 | Pretreatment method of high-concentration organic phosphorus wastewater and device |
| CN205687683U (en) * | 2016-03-25 | 2016-11-16 | 东莞道汇环保科技有限公司 | A kind of solid-liquid separating equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106430706A (en) * | 2016-09-29 | 2017-02-22 | 黄敬超 | Muddy water separator used for town and country construction and technology thereof |
| CN108751400A (en) * | 2018-06-11 | 2018-11-06 | 李晓伟 | A kind of urban sewage treating device |
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