CN211394178U - Nanocrystalline magnetic coagulation equipment for heavy metal wastewater treatment - Google Patents

Nanocrystalline magnetic coagulation equipment for heavy metal wastewater treatment Download PDF

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Publication number
CN211394178U
CN211394178U CN202021493477.5U CN202021493477U CN211394178U CN 211394178 U CN211394178 U CN 211394178U CN 202021493477 U CN202021493477 U CN 202021493477U CN 211394178 U CN211394178 U CN 211394178U
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China
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heavy metal
magnetism
nanocrystalline
chemical reaction
mud
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CN202021493477.5U
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Chinese (zh)
Inventor
袁春燕
蒋晓云
彭洪飞
徐先锋
易亚男
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Changsha Hasky Environmental Protection Technology Development Co ltd
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Changsha Hasky Environmental Protection Technology Development Co ltd
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Abstract

The utility model discloses a nanocrystalline magnetism thoughtlessly congeals equipment for heavy metal waste water treatment, including pH equalizing basin, chemical reaction pond, magnetism flocculation basin and the solid-liquid separation pond that communicates in proper order, still include the sludge reflux pump, the solid-liquid separation bottom of the pool portion is equipped with row's mud and connects, arrange the mud connect with the import intercommunication of sludge reflux pump, the export of sludge reflux pump with the chemical reaction pond intercommunication. The utility model discloses the treatment effeciency is high, area is little, the small investment and remove heavy metal medicament high-usage, nanocrystalline magnetism kind with contain heavy metal floc combination inseparabler, the magnetism floc of formation is more closely knit, the settling rate is faster, effectively guarantee follow-up high-speed stability, high-efficient operation of subsiding solid-liquid separation system, nanocrystalline magnetism kind is compound for the ferrosilicon, when the magnetism kind circulating pump will contain heavy metal sludge and carry out the magnetism kind separation to magnetism kind separating centrifuge, the compound nanocrystalline magnetism kind of ferrosilicon changes the separation and with cyclic utilization, the loss rate is lower.

Description

Nanocrystalline magnetic coagulation equipment for heavy metal wastewater treatment
Technical Field
The utility model relates to a heavy metal waste water treatment equipment field especially relates to a magnetism equipment of coagulating for heavy metal waste water treatment.
Background
With the rapid development of industry, the discharge amount of heavy metal wastewater is continuously increased, and the heavy metal pollution is increasingly serious. Heavy metals in wastewater cause pollution of soil, aquatic organisms and the like in various ways, and the heavy metals are accumulated in food and biological chains to different degrees, thereby causing serious harm to the survival and health of human beings. The types, contents and existing forms of heavy metal ions in the wastewater vary greatly according to different industries and production processes.
The magnetic coagulation equipment is used for treating heavy metal wastewater, and has the advantages of high treatment efficiency, small occupied area, low investment and the like. However, when the conventional magnetic coagulation equipment represented by the prior art CN104045201A (emergency sewage treatment system) is used for heavy metal wastewater treatment, the following disadvantages exist: the loss rate of magnetic seeds is high: in the traditional magnetic coagulation equipment, common iron powder is used as magnetic seeds, and the magnetic seeds have high loss rate and need to be supplemented frequently due to wide particle size distribution range and incomplete separation from sludge containing heavy metals; secondly, the utilization rate of the heavy metal removing agent is low: traditional magnetism thoughtlessly congeals equipment, the mud of production is direct to be arranged outward, and a large amount of incomplete reaction in the mud remove heavy metal medicament by extravagant, lead to removing the heavy metal medicament low-usage, increased the running cost of project, also caused environmental secondary pollution.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a treatment effeciency height, area is little, the small investment and remove the nanocrystalline magnetism coagulation equipment that is used for heavy metal waste water treatment that heavy metal medicament utilization ratio is high.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a nanocrystalline magnetism thoughtlessly congeals equipment for heavy metal waste water treatment, includes pH equalizing basin, chemical reaction pond, magnetism flocculation basin and the solid-liquid separation pond that communicates in proper order, still includes the sludge reflux pump, the solid-liquid separation bottom of the pool portion is equipped with row's mud and connects, row's mud connect with the import intercommunication of sludge reflux pump, the export of sludge reflux pump with chemical reaction pond intercommunication will contain through the sludge reflux pump and remove heavy metal medicament mud and flow back to chemical reaction pond.
As a further improvement of the above technical solution: the nanocrystalline magnetic coagulation equipment for heavy metal wastewater treatment further comprises a magnetic seed circulating pump and a magnetic seed separator, and the sludge discharge joint, the magnetic seed circulating pump, the magnetic seed separator and the magnetic flocculation tank are sequentially communicated.
As a further improvement of the above technical solution: and a pH adjusting stirrer is arranged in the pH adjusting tank.
As a further improvement of the above technical solution: and a chemical reaction stirrer and/or an air aeration component are/is arranged in the chemical reaction tank.
As a further improvement of the above technical solution: and a magnetic reaction stirrer is arranged in the magnetic flocculation tank.
As a further improvement of the above technical solution: and a mud scraper is arranged in the solid-liquid separation tank.
Compared with the prior art, the utility model has the advantages of: the utility model discloses a nanocrystalline magnetism thoughtlessly congeals equipment for heavy metal waste water treatment, except that the treatment effeciency that has traditional magnetism thoughtlessly congeals equipment is high, area is little, advantage such as small investment, still be provided with the sludge reflux pump, will contain except that heavy metal medicament mud flows back to the chemical reaction pond through the sludge reflux pump, make in the mud not complete reaction remove heavy metal medicament and the dissolving state heavy metal ion reaction in the waste water, improve except that the utilization ratio of heavy metal medicament.
Drawings
FIG. 1 is a schematic structural diagram of the nanocrystalline magnetic coagulation device for heavy metal wastewater treatment of the present invention.
The reference numerals in the figures denote: 1. a pH adjusting tank; 11. a pH adjusting stirrer; 12. a pH adjusting and dosing system; 13. a pH control system; 2. a chemical reaction tank; 21. a chemical reaction stirrer; 22. an air aeration component; 23. a heavy metal removal medicament dosing system; 3. a magnetic flocculation tank; 31. a magnetic reaction stirrer; 32. magnetic seed of nanocrystalline; 4. a solid-liquid separation tank; 41. a sludge discharge joint; 42. a mud scraper; 5. a sludge reflux pump; 6. a magnetic seed circulating pump; 7. a magnetic seed separator.
Detailed Description
The invention is described in further detail below with reference to the drawings and specific examples.
Fig. 1 shows the utility model discloses an embodiment of the nanocrystalline magnetism equipment of coagulating for heavy metal wastewater treatment, the nanocrystalline magnetism equipment of coagulating for heavy metal wastewater treatment of this embodiment, including pH equalizing basin 1, chemical reaction pond 2, magnetism flocculation basin 3 and the solid-liquid separation pond 4 that communicate in proper order, still include sludge reflux pump 5, solid-liquid separation pond 4 bottom is equipped with row mud joint 41, arranges mud joint 41 and sludge reflux pump 5's import intercommunication, sludge reflux pump 5's export and chemical reaction pond 2 intercommunication. The magnetic flocculation tank 3 is preferably added with nanocrystalline magnetic seeds 32, the nanocrystalline magnetic seeds 32 are combined with the heavy metal-containing flocs more tightly, the formed magnetic flocs are more compact, the subsequent sedimentation speed is higher, and the stable and efficient operation of the high-speed sedimentation solid-liquid separation process in the subsequent solid-liquid separation tank 4 is effectively ensured; further preferably, the nanocrystalline magnetic seeds 32 adopt a silicon-iron composite type, the silicon-iron ratio is 2:8, the granularity is 200-300 meshes, the density is more than 5.0g/cm3, and when the magnetic seed circulating pump 6 conveys the sludge containing heavy metals to the magnetic seed separator 7 for magnetic seed separation, the silicon-iron composite type nanocrystalline magnetic seeds 32 are easier to separate for recycling, and the loss rate is lower.
This a nanocrystalline magnetism thoughtlessly congeals equipment for heavy metal waste water treatment, except that the treatment effeciency that has traditional magnetism thoughtlessly congeals equipment is high, area is little, advantages such as the small investment, still be provided with sludge reflux pump 5, will contain except that heavy metal medicament mud flows back to chemical reaction pond 2 through sludge reflux pump 5, and the heavy metal medicament that removes that makes incomplete reaction in the mud reacts with the dissolved state heavy metal ion in the waste water, improves except that the utilization ratio of heavy metal medicament.
Further, in this embodiment, the nanocrystalline magnetic coagulation device for heavy metal wastewater treatment further includes a magnetic seed circulating pump 6 and a magnetic seed separator 7, and the sludge discharge joint 41, the magnetic seed circulating pump 6, the magnetic seed separator 7 and the magnetic flocculation tank 3 are sequentially communicated. Heavy metal-containing sludge is conveyed to a magnetic seed separator 7 through a magnetic seed circulating pump 6 for magnetic seed separation, and separated nanocrystalline magnetic seeds 23 are conveyed to a magnetic flocculation tank 3 for recycling, so that the supplement amount is reduced.
Further, in this embodiment, a pH adjusting stirrer 11 is provided in the pH adjusting tank 1, which is beneficial to uniformly stirring the pH adjusting agent.
Further, a chemical reaction stirrer 21 and/or an air aeration unit 22 are provided in the chemical reaction tank 2. The chemical agent for removing heavy metals can be efficiently reacted with heavy metals by the stirring action of the chemical reaction stirrer 21 and/or the stirring action of the air aeration member 22.
Further, in this embodiment, a magnetic reaction stirrer 31 is disposed in the magnetic flocculation tank 3, which is beneficial to fully combining the nanocrystalline magnetic seeds 32 with heavy metals, and improving flocculation effect.
Further, in this embodiment, a sludge scraper 42 is provided in the solid-liquid separation tank 4. The mud scraper 42 is arranged to facilitate the output of the sludge from the bottom sludge discharge connection 41.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.

Claims (6)

1. The utility model provides a nanocrystalline magnetism thoughtlessly congeals equipment for heavy metal waste water treatment, includes pH equalizing basin (1), chemical reaction pond (2), magnetism flocculation basin (3) and solid-liquid separation pond (4) that communicate in proper order, its characterized in that: still include sludge reflux pump (5), solid-liquid separation pond (4) bottom is equipped with row's mud and connects (41), arrange mud connect (41) with the import intercommunication of sludge reflux pump (5), the export of sludge reflux pump (5) with chemical reaction pond (2) intercommunication will contain through sludge reflux pump (5) and remove heavy metal medicament mud and flow back to chemical reaction pond (2).
2. The nanocrystalline magnetic coagulation device for heavy metal wastewater treatment according to claim 1, characterized in that: still include magnetism kind circulating pump (6) and magnetism kind separating centrifuge (7), arrange mud joint (41), magnetism kind circulating pump (6), magnetism kind separating centrifuge (7) and magnetism flocculation basin (3) and communicate in proper order.
3. The nanocrystalline magnetic coagulation device for heavy metal wastewater treatment according to claim 1 or 2, characterized in that: and a pH adjusting stirrer (11) is arranged in the pH adjusting tank (1).
4. The nanocrystalline magnetic coagulation device for heavy metal wastewater treatment according to claim 1 or 2, characterized in that: a chemical reaction stirrer (21) and/or an air aeration component (22) are arranged in the chemical reaction tank (2).
5. The nanocrystalline magnetic coagulation device for heavy metal wastewater treatment according to claim 1 or 2, characterized in that: a magnetic reaction stirrer (31) is arranged in the magnetic flocculation tank (3).
6. The nanocrystalline magnetic coagulation device for heavy metal wastewater treatment according to claim 1 or 2, characterized in that: a mud scraper (42) is arranged in the solid-liquid separation tank (4).
CN202021493477.5U 2020-07-27 2020-07-27 Nanocrystalline magnetic coagulation equipment for heavy metal wastewater treatment Active CN211394178U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021493477.5U CN211394178U (en) 2020-07-27 2020-07-27 Nanocrystalline magnetic coagulation equipment for heavy metal wastewater treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021493477.5U CN211394178U (en) 2020-07-27 2020-07-27 Nanocrystalline magnetic coagulation equipment for heavy metal wastewater treatment

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112723498A (en) * 2020-11-16 2021-04-30 福建亿旭能源科技有限公司 Nanocrystalline magnetic coagulation equipment for heavy metal wastewater treatment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112723498A (en) * 2020-11-16 2021-04-30 福建亿旭能源科技有限公司 Nanocrystalline magnetic coagulation equipment for heavy metal wastewater treatment

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Date Code Title Description
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Nanocrystalline magnetic coagulation equipment for heavy metal wastewater treatment

Effective date of registration: 20211215

Granted publication date: 20200901

Pledgee: China Everbright Bank Co.,Ltd. Changsha Wanjiali road sub branch

Pledgor: CHANGSHA HASKY ENVIRONMENTAL PROTECTION TECHNOLOGY DEVELOPMENT Co.,Ltd.

Registration number: Y2021430000092

PE01 Entry into force of the registration of the contract for pledge of patent right