CN111013241A - A device for retrieving flocculation and precipitation in waste liquid - Google Patents
A device for retrieving flocculation and precipitation in waste liquid Download PDFInfo
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- CN111013241A CN111013241A CN201911365405.4A CN201911365405A CN111013241A CN 111013241 A CN111013241 A CN 111013241A CN 201911365405 A CN201911365405 A CN 201911365405A CN 111013241 A CN111013241 A CN 111013241A
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- composite fiber
- fiber cloth
- cloth layer
- shell
- waste liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
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Abstract
The invention discloses a device for recovering flocculation and precipitation in waste liquid, which is formed by connecting a plurality of conical filters with different sizes and consistent shapes, wherein a shell of each conical filter is made of metal, a dense-hole composite fiber cloth layer, an adsorption layer and a sparse-hole composite fiber cloth layer are sequentially arranged from outside to inside, the dense-hole composite fiber cloth layer, the adsorption layer and the sparse-hole composite fiber cloth layer are respectively coated by a metal net and are movably arranged in the shell, a liquid inlet is formed in one wide-mouth end of the shell, a liquid outlet is formed in one narrow-mouth end of the shell, internal threads are formed in the shell at the liquid inlet end, external threads are formed in the liquid outlet, and the external threads of the previous-stage conical filter are. According to the invention, no other auxiliary agent is added in the process of adsorbing the precipitate in the arsenic-containing waste liquid, the precipitate in the arsenic-containing waste liquid is intercepted and separated by utilizing the fluid mechanics principle and the porous structure of the fiber, the arsenic-containing waste liquid can be recycled, and the efficiency is high, the cost is low.
Description
Technical Field
The invention relates to wastewater treatment, in particular to a device for recovering flocculation and precipitation in waste liquid.
Background
The hard-to-process gold concentrate containing arsenic and carbon adopts two-stage roasting acid making, acid leaching impurity removing and cyaniding gold extracting processes, mixed flue gas of arsenic trioxide, sulfur dioxide and the like is generated in the roasting process, acid-containing arsenic waste liquid is produced through electric precipitation, wet quenching arsenic removal and acid washing purification, and the purified sulfur dioxide flue gas is subjected to secondary conversion and secondary absorption to produce a sulfuric acid product. The method for treating the acidic arsenic-containing waste liquid mainly comprises a lime neutralization method, a lime and iron salt neutralization method, a high-efficiency vulcanization purification method, a microbial oxidation degradation method and the like, wherein the main principle of the lime precipitation method is as follows: adding lime with the arsenic molar quantity of 4-10 times into the wastewater, and adjusting the pH of the wastewater to be more than 12 to ensure that the As in the wastewater3+、As5+Insoluble calcium arsenate, calcium arsenite and other precipitates are formed with the added calcium, so that the arsenic content in the water is effectively reduced, and finally, the pH value of the wastewater is adjusted by adding acid and other methods, so that the wastewater meets the requirements of discharge or subsequent treatment; the main principle of the sulfide precipitation method is as follows: under acidic condition, using As of different valence statesm+Can be reacted with S2-Formation of insoluble precipitated As2Sm(ii) a The main principle of the calcium-iron salt combined arsenic removal method is as follows: pre-oxidizing the waste water, adding ferric salt, adjusting the pH value, and adding a calcium precipitator to form calcium-arsenic slag. The arsenic-containing solid waste obtained by a sulfide precipitation method and a calcium-iron salt combined arsenic removal method is easy to dissolve out, and hidden danger exists in open-air stockpiling. The waste slag produced by the traditional iron salt precipitation method can be stably stored, but has the defects of low precipitation speed, large viscosity of the waste slag and the like. Therefore, how to reduce the amount of the arsenic-containing iron slag and improve the removal rate of arsenic is the key to the problem of treating the arsenic-containing wastewater. Whichever is the caseThe treatment methods all have the problems of high production treatment cost and complex process flow.
Patent CN106517577A is a treatment process of acidic arsenic-containing wastewater, in which chlorate or/and perchlorate is used as oxidant to oxidize trivalent arsenic into pentavalent arsenic, and inorganic flocculant and organic flocculant are added successively to perform flocculation precipitation dearsenification. The method adopts the oxidant, adopts multi-stage oxidation treatment and flocculation, still increases the complexity of the process, causes high production cost, adopts an outward discharge mode to treat the treated wastewater, and does not realize the aims of emission reduction and cyclic utilization.
Chinese patent CN107188292A discloses a method for purifying arsenic-containing waste liquid by using cyanide silver extraction waste residue, and provides a method for purifying arsenic-containing waste liquid by using cyanide silver extraction waste residue, and the method is low in efficiency due to the fact that operation steps are responsible for and more auxiliaries are used.
Disclosure of Invention
The invention provides a device for recovering flocculent precipitate in waste liquid, aiming at the problem of poor treatment effect of the existing arsenic-containing waste liquid.
The technical scheme for solving the technical problems is as follows: the utility model provides a device for retrieving flocculation and precipitation in waste liquid, is connected by the toper filter that a plurality of sizes are different, the shape is unanimous and forms, and the toper filter shell is the metal, and outside-in is dense hole composite fiber cloth layer, adsorbed layer and dredges hole composite fiber cloth layer in proper order, and dense hole composite fiber cloth layer, adsorbed layer and dredges the hole composite fiber cloth layer and wrap by the metal mesh, and the homoenergetic is packed into movably in the shell, shell wide-mouth one end is the inlet, and thin mouthful one end is the liquid outlet, and the shell of inlet end is equipped with the internal thread, and the liquid outlet is equipped with the external screw thread, the external screw thread of preceding one-level toper filter and.
The device is formed by connecting 2 or 3 conical filters. The length-diameter ratio of the conical filter is 1 (3-5), and the diameter ratio of the liquid inlet to the liquid outlet is 2-2.5) to 1. The pore diameter of the dense-pore composite fiber cloth layer in the conical filter is 1-3 mu m, and the thickness is 1-3 cm; the adsorption layer is made of long glass fiber and has a thickness of 5-8 cm; the aperture of the sparse-aperture composite fiber cloth layer is 5-10 mu m, and the thickness is 4-6 cm.
The invention has the beneficial effects that: connect the booster pump with first order conical filter's inlet, the arsenic waste liquid that will contain the sediment passes through conical filter at different levels once, because the most inboard is for dredging hole composite fiber cloth layer, deposit under pressure and get into and pass in getting into the adsorbed layer, the long fine interception that will deposit of glass in the adsorbed layer, because conical filter's side is the inclined plane, water can get into next level conical filter along the side, carry out the secondary adsorption to the sediment that does not have the interception, treat the adsorbed layer saturation back, can dismantle it from conical filter, can separate the sediment after drying. According to the invention, no other auxiliary agent is added in the process of adsorbing the precipitate in the arsenic-containing waste liquid, the precipitate in the arsenic-containing waste liquid is intercepted and separated by utilizing the fluid mechanics principle and the porous structure of the fiber, the arsenic-containing waste liquid can be recycled, and the efficiency is high, the cost is low.
Drawings
FIG. 1 is a schematic view of a conical filter; FIG. 2 is a schematic view of the apparatus of example 1; FIG. 3 is a schematic view of an apparatus according to example 2; each part is as follows:
1. the shell, 2, dense hole composite fiber cloth layer, 3, adsorption layer, 4, sparse hole composite fiber cloth layer.
Detailed Description
The present invention is described below with reference to examples, which are provided for illustration only and are not intended to limit the scope of the present invention.
Example 1
A device for recovering flocculation and precipitation in waste liquid is formed by connecting 2 conical filters with different sizes and a length-diameter ratio of 1:5, wherein a shell 1 of the conical filter is made of metal, and sequentially comprises a dense-hole composite fiber cloth layer 2, an adsorption layer 3 and a sparse-hole composite fiber cloth layer 4 from outside to inside, the pore diameter of the dense-hole composite fiber cloth layer 2 is 3 mu m, and the thickness of the dense-hole composite fiber cloth layer is 3 cm; the adsorption layer 3 is made of long glass fiber and is 5cm thick; the aperture of the sparse-hole composite fiber cloth layer 4 is 5 micrometers, the thickness of the sparse-hole composite fiber cloth layer 4 is 4cm, the dense-hole composite fiber cloth layer 2, the adsorption layer 3 and the sparse-hole composite fiber cloth layer 4 are all coated by metal nets and are movably arranged in the shell 1, the wide-mouth end of the shell 1 is a liquid inlet, the narrow-mouth end of the shell is a liquid outlet, the ratio of the liquid inlet to the liquid outlet is 2:1, the shell 1 at the liquid inlet end is provided with internal threads, the liquid outlet is provided with external threads, and the external threads of the previous-stage conical filter are matched with.
Example 2
A device for recovering flocculation and precipitation in waste liquid is formed by connecting 3 conical filters with different sizes and a length-diameter ratio of 1:3, wherein a shell 1 of the conical filter is made of metal, and sequentially comprises a dense-hole composite fiber cloth layer 2, an adsorption layer 3 and a sparse-hole composite fiber cloth layer 4 from outside to inside, the pore diameter of the dense-hole composite fiber cloth layer 2 is 1 mu m, and the thickness of the dense-hole composite fiber cloth layer is 1 cm; the adsorption layer 3 is made of long glass fiber and is 8cm thick; the aperture of the sparse-hole composite fiber cloth layer 4 is 10 micrometers, the thickness of the sparse-hole composite fiber cloth layer is 6cm, the dense-hole composite fiber cloth layer 2, the adsorption layer 3 and the sparse-hole composite fiber cloth layer 4 are all coated by metal nets and are movably arranged in the shell 1, the wide-mouth end of the shell 1 is a liquid inlet, the thin-mouth end of the shell is a liquid outlet, the ratio of the liquid inlet to the liquid outlet is 2.5:1, the shell 1 at the liquid inlet end is provided with internal threads, the liquid outlet is provided with external threads, and the external threads of the front-stage conical filter are matched with the.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The utility model provides a device for retrieving flocculation and precipitation in waste liquid, is connected by the toper filter that a plurality of sizes are different, the shape is unanimous and forms, its characterized in that, toper filter shell is the metal, and outside-in is dense hole composite fiber cloth layer, adsorbed layer and dredges hole composite fiber cloth layer in proper order, dense hole composite fiber cloth layer, adsorbed layer and dredged hole composite fiber cloth layer are packed into by the metal mesh cladding movably in the shell, shell wide-mouth one end is the inlet, and thin mouthful one end is the liquid outlet, and the shell of inlet end is equipped with the internal thread, and the liquid outlet is equipped with the external screw thread, the external screw thread of preceding one-level toper filter and the internal thread adaptation of the toper filter of later.
2. The apparatus for recovering flocculation precipitate in waste liquid according to claim 1, wherein said conical filter is 2 or 3.
3. The apparatus for recovering flocculation and precipitation in waste liquid of claim 1, wherein the length-diameter ratio of the conical filter is 1 (3-5).
4. The apparatus for recovering flocculation precipitate in waste liquid according to claim 3, wherein the ratio of the liquid inlet to the liquid outlet of said conical filter is (2-2.5): 1.
5. The apparatus for recovering flocculation and precipitation in waste liquid according to any of claims 1 to 4, wherein the pore diameter of the dense-pore composite fiber cloth layer is 1 to 3 μm, and the thickness is 1 to 3 cm; the adsorption layer is made of long glass fibers and is 5-8cm thick; the aperture of the sparse-aperture composite fiber cloth layer is 5-10 mu m, and the thickness of the sparse-aperture composite fiber cloth layer is 4-6 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911365405.4A CN111013241A (en) | 2019-12-26 | 2019-12-26 | A device for retrieving flocculation and precipitation in waste liquid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911365405.4A CN111013241A (en) | 2019-12-26 | 2019-12-26 | A device for retrieving flocculation and precipitation in waste liquid |
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| CN111013241A true CN111013241A (en) | 2020-04-17 |
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| CN201911365405.4A Pending CN111013241A (en) | 2019-12-26 | 2019-12-26 | A device for retrieving flocculation and precipitation in waste liquid |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200995105Y (en) * | 2007-01-12 | 2007-12-26 | 东莞日光滤清器有限公司 | Conical assembled filter |
| CN202715298U (en) * | 2012-08-06 | 2013-02-06 | 蔡忠 | Conical filter |
| CN202802902U (en) * | 2012-09-20 | 2013-03-20 | 浙江奥力康科技有限公司 | Conical filter |
| CN203208793U (en) * | 2013-04-16 | 2013-09-25 | 常州埃姆基冷冻设备有限公司 | Split type filter |
| CN204233884U (en) * | 2014-10-21 | 2015-04-01 | 胡建军 | Sewage disposal quick separating and circulation filter |
| CN205495092U (en) * | 2016-04-11 | 2016-08-24 | 苏州百硕自动化环保设备有限公司 | Sewage filter's filter equipment |
| CN206027196U (en) * | 2016-07-27 | 2017-03-22 | 安徽国香粮油有限公司 | Grease toper filter structure |
| CN106731181A (en) * | 2016-12-05 | 2017-05-31 | 无锡艾科瑞思产品设计与研究有限公司 | A kind of decontaminating column of extract solution direct injected |
| CN209348238U (en) * | 2018-12-16 | 2019-09-06 | 江苏拓驰工程技术开发有限公司 | A kind of conical filter for pipeline |
-
2019
- 2019-12-26 CN CN201911365405.4A patent/CN111013241A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200995105Y (en) * | 2007-01-12 | 2007-12-26 | 东莞日光滤清器有限公司 | Conical assembled filter |
| CN202715298U (en) * | 2012-08-06 | 2013-02-06 | 蔡忠 | Conical filter |
| CN202802902U (en) * | 2012-09-20 | 2013-03-20 | 浙江奥力康科技有限公司 | Conical filter |
| CN203208793U (en) * | 2013-04-16 | 2013-09-25 | 常州埃姆基冷冻设备有限公司 | Split type filter |
| CN204233884U (en) * | 2014-10-21 | 2015-04-01 | 胡建军 | Sewage disposal quick separating and circulation filter |
| CN205495092U (en) * | 2016-04-11 | 2016-08-24 | 苏州百硕自动化环保设备有限公司 | Sewage filter's filter equipment |
| CN206027196U (en) * | 2016-07-27 | 2017-03-22 | 安徽国香粮油有限公司 | Grease toper filter structure |
| CN106731181A (en) * | 2016-12-05 | 2017-05-31 | 无锡艾科瑞思产品设计与研究有限公司 | A kind of decontaminating column of extract solution direct injected |
| CN209348238U (en) * | 2018-12-16 | 2019-09-06 | 江苏拓驰工程技术开发有限公司 | A kind of conical filter for pipeline |
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Application publication date: 20200417 |