CN102153201A - Electromagnetism sewage-treatment system and electromagnetism sewage-treatment method - Google Patents

Electromagnetism sewage-treatment system and electromagnetism sewage-treatment method Download PDF

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Publication number
CN102153201A
CN102153201A CN 201110122215 CN201110122215A CN102153201A CN 102153201 A CN102153201 A CN 102153201A CN 201110122215 CN201110122215 CN 201110122215 CN 201110122215 A CN201110122215 A CN 201110122215A CN 102153201 A CN102153201 A CN 102153201A
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China
Prior art keywords
electromagnetism
sewage
biochemical device
biochemical
water
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CN 201110122215
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Chinese (zh)
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黄家新
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WUHAN JINWEILI ENVIRONMENTAL PROTECTION ENGINEERING CO LTD
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WUHAN JINWEILI ENVIRONMENTAL PROTECTION ENGINEERING CO LTD
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Priority to CN 201110122215 priority Critical patent/CN102153201A/en
Publication of CN102153201A publication Critical patent/CN102153201A/en
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Abstract

The invention discloses an electromagnetism sewage-treatment method including the steps as follows: sewage is pumped by a lift pump and enters an electromagnetic-biochemical device through a water inlet pipe; a chemical agent is stirred in a dosing device and then enters the electromagnetic-biochemical device; an aerator continuously introduces air into the sewage in the electromagnetic-biochemical device; after electromagnetic flocculation treatment of the electromagnetic-biochemical device, the sewage is separated in a box body dreg collecting pool; scum and foam at the surface layer are scraped out to a belt type concentrating-filtering integrated machine by a dreg scraping machine so as to concentrate and dewater; and clarified water at the bottom layer of the box body dreg collecting tank is discharged out from a water outlet pipe. The invention also provides an electromagnetism sewage-treatment system. In the invention, a magnetic field can be added on the base of the existing electrode, so that the treatment efficiency of electroflocculation can be greatly improved; aeration is added on the base of the magnetic field, so that the biochemical capability is enhanced and the biochemical process of water body is accelerated; the invention does not occupy large-area land and can operate reliably; and the operation is simple, the efficiency is high and the requirement of water purification is ensured.

Description

A kind of electromagnetism Sewage treatment systems and electromagnetism sewage water treatment method
Technical field
The present invention relates to environmental technology field, specifically is a kind of electromagnetism Sewage treatment systems and electromagnetism sewage water treatment method.
Background technology
Worldwide, especially in developing country, the industrial sewage that gives off from various Industrial processes has caused serious harm to environment, has brought heavy economical load for government and enterprise.Environmental problem has caused the great attention of Chinese Government, and municipal administration (city) sewage and industrial sewage are handled has become an important industry in China.
Normal urban sewage treatment system comprises that water compiles, one-level processing, second-stage treatment and advanced treatment.
The one-level treatment process: mainly be primary sedimentation pond, purpose is that the sedimentation as much as possible of suspended substance in the sewage is removed, and general primary sedimentation pond can be removed suspended substance about 50% and about 25% BOD5
Second-stage treatment technology: mainly be to be made of aeration tank and secondary sedimentation basins, main purpose is that the metabolism by microorganism becomes the most of pollutent in the sewage into CO 2And H 2O.Microorganism flows into secondary sedimentation basins with water later continuously in reaction in the aeration tank, and microorganism sinks at the bottom of the pond, and delivers to the aeration tank front end by pipeline and blowback and mix with the new sewage that flows into; Clarifying treating water then flows out Sewage Plant by effluent weir endlessly above the secondary sedimentation basins.
Advanced treatment: be in order to satisfy high-level receiving water body requirement or to be back to special purposes such as industry and the further processing carried out, the technology of passing through has coagulating sedimentation and filtration.The end of advanced treatment will have chlorination to require and contact tank toward contact.Along with the high level development of urban society's economy, advanced treatment is the needs of future development.
The sewage treatment process of prior art and system exist problems such as system is huge, fund input is big, sewage treating efficiency is low.
Summary of the invention
The invention provides a kind of electromagnetism Sewage treatment systems and electromagnetism sewage water treatment method, do not need to take large-area soil, and can move reliably, guarantee the requirement of purification of water quality.
A kind of electromagnetism Sewage treatment systems, comprise that the chemicals dosing plant, electromagnetism biochemical device, casing collection slag bath and the belt that connect successively concentrate the press filtration all-in-one, aerator is connected with the electromagnetism biochemical device by aeration tube, vertically be provided with a plurality of battery lead plates in the electromagnetism biochemical device, at the outside surface that is parallel to battery lead plate magnet is set, the electromagnetism biochemical device is provided with water inlet pipe, water inlet pipe is connected with lift pump, lift pump is used for pending sewage is injected the electromagnetism biochemical device by water inlet pipe, the pond face of casing collection slag bath is provided with slag scraper, and casing collection slag bath bottom sets out water pipe.
A kind of electromagnetism sewage water treatment method, use above-mentioned electromagnetism Sewage treatment systems, sewage extracts through lift pump, enter the electromagnetism biochemical device by water inlet pipe, medicament enters the electromagnetism biochemical device after stirring in chemicals dosing plant, aerator is connected with the electromagnetism biochemical device by aeration tube, the continuous bubbling air of the sewage of aerator in the electromagnetism biochemical device, separate in casing collection slag bath through the sewage after the electromagnetism flocculation treatment of electromagnetism biochemical device, the scum silica frost on top layer and foam are scraped by slag scraper and concentrate the press filtration all-in-one to belt and carry out concentrating of mud, dehydration, the clarifying water of casing collection slag bath bottom is discharged from rising pipe.
The electromagnetism sewage water treatment method that the embodiment of the invention provides increases magnetic field by the electromagnetism flocculation of electromagnetism biochemical device on existing electrode basis, can improve the processing efficiency of electricity flocculation greatly; Add aeration on the basis of electromagnetic field, can make between each electromagnetic field to form convertible aerobic, hold concurrently oxygen, anaerobic zone, the stability of utilizing collision between the pollutent and oxidation can destroy pollutent has increased biodegradability, has quickened the water body biological process; Do not need to take large-area soil, and can move reliably, simple to operate, the efficient height guarantees the requirement of purification of water quality.
Description of drawings
Fig. 1 is the structural representation of sewage disposal treatment system of the present invention.
Among the figure: 10-chemicals dosing plant, 11-agitator, 12-chemical feed pipe, 20-electromagnetism biochemical device, 21-battery lead plate, 22-magnet, 23-water inlet pipe, 30-aerator, 31-aeration tube, 40-casing collection slag bath, the 41-rising pipe, the 50-slag scraper, the 60-belt concentrates press filtration all-in-one, 70-automatic control cabinet.
Embodiment
Below in conjunction with the accompanying drawing among the present invention, the technical scheme among the present invention is clearly and completely described.
Figure 1 shows that the structural representation of electromagnetism Sewage treatment systems of the present invention, described electromagnetism Sewage treatment systems comprises that logical chemicals dosing plant 10, electromagnetism biochemical device 20, casing collection slag bath 40 and the belt that connects successively concentrates press filtration all-in-one 60, electromagnetism biochemical device 20 can be set up in parallel a plurality of, specifically be decided according to the actual requirements, connect by connecting water pipe between each electromagnetism biochemical device 20.Aerator 30 is connected with electromagnetism biochemical device 20 by aeration tube 31, be used for to the continuous bubbling air of the sewage of electromagnetism biochemical device 20, behind certain hour, because of aerobic, the oxygen of holding concurrently, anerobe breeding formation sludge-like throw out, perching micropopulation on it, having the very strong absorption and the ability of oxidation of organic compounds based on zoogloea.
Chemicals dosing plant 10 comprises agitator 11, dosing tank and chemical feed pipe 12, and agitator 11 is subjected to Controlled by Programmable Controller, in dosing tank soup is stirred, and by chemical feed pipe 12 soup that stirs is input in the electromagnetism biochemical device 20 then.The no toxicant that adds can effectively reduce the ammonia nitrogen index, the overall target that equipment is reached purify waste water.
Vertically be provided with a plurality of battery lead plates 21 in the electromagnetism biochemical device 20, at the outside surface that is parallel to battery lead plate 21 magnet 22 is set, electromagnetism biochemical device 20 is provided with water inlet pipe 23, and water inlet pipe 23 is connected with lift pump, and lift pump injects electromagnetism biochemical device 20 with pending sewage by water inlet pipe 23.The present invention changes the form of existing electricity flocculation, in the process of electrode, add magnetic field, be called for short the electromagnetic method flocculation, can make the activation passivation of metal in the sewage change current potential by the mode that magnet 22 is set at the outside surface that is parallel to battery lead plate 21 moves to forward, add the magnetic field of proper strength in parallel and directions in battery lead plate 21 surfaces, magnetic field can with and the velocity field of solution electrode surface reaction active substance between interact, boundary material is quickened, so just reduced concentration polarization.Restraining effect is played in the formation of antianode passive film; The interfacial diffusion layer thickness is reduced, cause anodic current density to increase, the dissolving of accelerating electrode, thus obtain and adopt the same effects of method such as stirring, rotating disk electrode and variation velocity of medium, the processing efficiency of raising electricity flocculation greatly.
Battery lead plate 21 has redoxomorphism at the feeding direct current to pollutent, wherein pollutent directly loses electronics and direct oxidation takes place at anode, in addition, utilize the lower negatively charged ion of electrode potential in the solution, for example OH-, Cl-lose active substance [O], the Cl of the stronger oxygenant of electron production at anode 2, utilize these materials to make pollutent lose electronics generation oxidation; Pollutent obtains electronics and reductive action takes place on anode, in addition, the positively charged ion of pollutent at first obtains electronics at negative electrode, makes in the ionogen high price or metallic cation at a low price obtain electronics on negative electrode and directly is reduced to metallic cation or precipitated metal at a low price.For soluble anode, anode such as iron, aluminium for example, pass to galvanic current after, anode forms metallic cation Fe2+, Al3+ after losing electronics, generate metal hydroxides colloid flocculation agent with the OH-in the solution, adsorptive power is extremely strong, the absorption of pollutants in sewage matter can be removed.
Aerator 30 is connected with electromagnetism biochemical device 20 by aeration tube 31, the continuous bubbling air of sewage in electromagnetism biochemical device 20, on the basis of electromagnetic field, add aeration, can make and form convertible aerobic, hold concurrently oxygen, anaerobic zone between each electromagnetic field, the stability of utilizing collision between the pollutent and oxidation can destroy pollutent, increased biodegradability, and formed cotton-shaped; Utilize aeration to quicken the water body biological process, by adjusting the purpose that electromagnetic field parameter and aeration parameter can reach pollution treatment.
The sewage of handling through electromagnetism biochemical device 20 enters casing collection slag bath 40, the pond face of casing collection slag bath 40 is provided with slag scraper 50, sewage can be piled up one deck scum silica frost through top layer after the precipitation in casing collection slag bath 40, slag scraper 50 is used for striking off the scum silica frost that flocculation treatment process produces, it uses the chain gear principle, according to the size design of casing collection slag bath 40, according to processing sewage quality and institute's adding medicine, can regulate the slag speed of scraping, finish the slag task of scraping under the minimum power consumption to be implemented in; Casing collection slag bath 40 bottoms set out the sewage of water pipe 41 after will handling and discharge.
The scum silica frost that slag scraper 50 scrapes is sent into belt and is concentrated concentrated, the dehydration that press filtration all-in-one 60 carries out mud, it is the combination of belt thickner and belt filter press that belt concentrates press filtration all-in-one 60, promptly forms compact construction by enriching section and filter pressing section two portions, simple to operate, floor space is few.The rare mud high at the enriching section water ratio is concentrated into about 92-95%, enters filter pressing section and is dewatered to water ratio below 80%, the disposal needs that satisfy transportation or stack.
Agitator 11 in automatic control cabinet 70 and the chemicals dosing plant 10, the battery lead plate 21 in the electromagnetism biochemical device 20, aerator 30, slag scraper 50, belt concentrate press filtration all-in-one 60 and are connected, according to pending sewage quality changing conditions, in automatic control cabinet 70 parameter adjustment scopes, regulate, concrete, the current density by PLC control electromagnetic field, electric switch, change poles time, one pole time, burst length, the fan operation time of aerator 30, the thickening of taking out slag time, slag of slag scraper 50.
The method that the electromagnetism Sewage treatment systems of using the foregoing description to provide below in conjunction with description of drawings is disposed of sewage.
As shown in Figure 1, sewage extracts through lift pump, enter electromagnetism biochemical device 20 by water inlet pipe 23, electromagnetism biochemical device 20 concentrates press filtration all-in-one 60 with casing collection slag bath 40 and belt successively and is connected, medicament enters electromagnetism biochemical device 20 after stirring in chemicals dosing plant 10, aerator 30 is connected with electromagnetism biochemical device 20 by aeration tube 31, the continuous bubbling air of the sewage of aerator 30 in electromagnetism biochemical device 20, separate in casing collection slag bath 40 through the sewage after the electromagnetism flocculation treatment of electromagnetism biochemical device 2, the scum silica frost on top layer and foam are scraped by slag scraper 50 and concentrate press filtration all-in-one 60 to belt and carry out concentrating of mud, dehydration, the clarifying water of casing collection slag bath 40 bottoms is discharged from rising pipe 41.Medicament is used for removing the ammonia nitrogen of sewage.
The electromagnetism sewage water treatment method that the embodiment of the invention provides increases magnetic field by the electromagnetism flocculation of electromagnetism biochemical device 20 on existing electrode basis, can improve the processing efficiency of electricity flocculation greatly; Add aeration on the basis of electromagnetic field, can make between each electromagnetic field to form convertible aerobic, hold concurrently oxygen, anaerobic zone, the stability of utilizing collision between the pollutent and oxidation can destroy pollutent has increased biodegradability, has quickened the water body biological process; Do not need to take large-area soil, and can move reliably, simple to operate, the efficient height guarantees the requirement of purification of water quality.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly belongs to those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.

Claims (3)

1. electromagnetism Sewage treatment systems, it is characterized in that: comprise the chemicals dosing plant (10) that connects successively, electromagnetism biochemical device (20), casing collection slag bath (40) and belt concentrate press filtration all-in-one (60), aerator (30) is connected with electromagnetism biochemical device (20) by aeration tube (31), vertically be provided with a plurality of battery lead plates (21) in the electromagnetism biochemical device (20), at the outside surface that is parallel to battery lead plate (21) magnet (22) is set, electromagnetism biochemical device (20) is provided with water inlet pipe (23), water inlet pipe (23) is connected with lift pump, lift pump is used for pending sewage is injected electromagnetism biochemical device (20) by water inlet pipe (23), the pond face of casing collection slag bath (40) is provided with slag scraper (50), and casing collection slag bath (40) bottom sets out water pipe (41).
2. electromagnetism Sewage treatment systems as claimed in claim 1, it is characterized in that: also comprise automatic control cabinet (70), the agitator (11) in automatic control cabinet (70) and the chemicals dosing plant (10), the battery lead plate (21) in the electromagnetism biochemical device (20), aerator (30), slag scraper (50), belt concentrate press filtration all-in-one (60) and are connected.
3. electromagnetism sewage water treatment method, it is characterized in that: use claim 1 or 2 described electromagnetism Sewage treatment systemss, sewage extracts through lift pump, enter electromagnetism biochemical device (20) by water inlet pipe (23), medicament enters electromagnetism biochemical device (20) after stirring in chemicals dosing plant (10), aerator (30) is connected with electromagnetism biochemical device (20) by aeration tube (31), the sewage continuous bubbling air of aerator (30) in electromagnetism biochemical device (20), separate in casing collection slag bath (40) through the sewage after the electromagnetism flocculation treatment of electromagnetism biochemical device (20), the scum silica frost on top layer and foam are scraped by slag scraper (50) and concentrate press filtration all-in-one (60) to belt and carry out concentrating of mud, dehydration, the clarifying water of casing collection slag bath (40) bottom is discharged from rising pipe (41).
CN 201110122215 2011-05-12 2011-05-12 Electromagnetism sewage-treatment system and electromagnetism sewage-treatment method Pending CN102153201A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105692814A (en) * 2016-04-06 2016-06-22 长江水利委员会长江科学院 High-concentration suspended substance electric-flocculation/floc separation precipitation integrated treatment device
CN105967428A (en) * 2016-06-17 2016-09-28 中海油天津化工研究设计院有限公司 Electromagnetic coupling inclined plate electric flocculation reactor
CN106186208A (en) * 2016-08-10 2016-12-07 昆山福松环保设备有限公司 Sewage-treatment plant and apply its sewage water treatment method
CN106219917A (en) * 2016-08-25 2016-12-14 宁波市海智材料产业创新研究院 The device of a kind of quick removal Heavy Metals in Sludge and minimizing technology thereof
CN107352688A (en) * 2017-08-01 2017-11-17 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 The processing unit and method that electric flocculation processing water flco separation and hardness reduce
CN109343494A (en) * 2018-11-12 2019-02-15 中冶京诚工程技术有限公司 Magnetic flocculation water body purification monitoring system and method based on Internet of Things
CN114506933A (en) * 2021-12-31 2022-05-17 江苏贝克莱恩环境工程有限公司 Sewage multi-stage treatment system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000246257A (en) * 1999-03-04 2000-09-12 Sanee Industrial Co Ltd Waste water treatment apparatus in construction work or the like
WO2001085618A1 (en) * 2000-05-12 2001-11-15 Ok Soo Oh Method for treating wastewater with powders of slag generated from steel making process
CN2632080Y (en) * 2002-07-05 2004-08-11 丁忠浩 Electrocoagulation integrated portable living water apparatus
CN2837295Y (en) * 2005-11-03 2006-11-15 中国石油天然气集团公司 Electric flocculation flotation treatment machine for oily sewage
CN101983941A (en) * 2010-12-06 2011-03-09 沈阳工业大学 Electric flocculation-air flotation integrated waste water treatment equipment
CN102010037A (en) * 2009-09-08 2011-04-13 王惠丰 Design scheme of standardized electric flocculation equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000246257A (en) * 1999-03-04 2000-09-12 Sanee Industrial Co Ltd Waste water treatment apparatus in construction work or the like
WO2001085618A1 (en) * 2000-05-12 2001-11-15 Ok Soo Oh Method for treating wastewater with powders of slag generated from steel making process
CN2632080Y (en) * 2002-07-05 2004-08-11 丁忠浩 Electrocoagulation integrated portable living water apparatus
CN2837295Y (en) * 2005-11-03 2006-11-15 中国石油天然气集团公司 Electric flocculation flotation treatment machine for oily sewage
CN102010037A (en) * 2009-09-08 2011-04-13 王惠丰 Design scheme of standardized electric flocculation equipment
CN101983941A (en) * 2010-12-06 2011-03-09 沈阳工业大学 Electric flocculation-air flotation integrated waste water treatment equipment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
《中国优秀硕士学位论文全文数据库工程科技I辑》 20110415 杨英福 磁场超声复合式电絮凝水处理技术研究 , 第04期 2 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105692814A (en) * 2016-04-06 2016-06-22 长江水利委员会长江科学院 High-concentration suspended substance electric-flocculation/floc separation precipitation integrated treatment device
CN105692814B (en) * 2016-04-06 2018-05-18 长江水利委员会长江科学院 A kind of high concentration suspended matter electric flocculation and flco precipitation and separation integrated treatment unit
CN105967428A (en) * 2016-06-17 2016-09-28 中海油天津化工研究设计院有限公司 Electromagnetic coupling inclined plate electric flocculation reactor
CN106186208A (en) * 2016-08-10 2016-12-07 昆山福松环保设备有限公司 Sewage-treatment plant and apply its sewage water treatment method
CN106219917A (en) * 2016-08-25 2016-12-14 宁波市海智材料产业创新研究院 The device of a kind of quick removal Heavy Metals in Sludge and minimizing technology thereof
CN106219917B (en) * 2016-08-25 2019-03-05 宁波市海智材料产业创新研究院 A kind of device and its minimizing technology of quick removal Heavy Metals in Sludge
CN107352688A (en) * 2017-08-01 2017-11-17 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 The processing unit and method that electric flocculation processing water flco separation and hardness reduce
CN109343494A (en) * 2018-11-12 2019-02-15 中冶京诚工程技术有限公司 Magnetic flocculation water body purification monitoring system and method based on Internet of Things
CN114506933A (en) * 2021-12-31 2022-05-17 江苏贝克莱恩环境工程有限公司 Sewage multi-stage treatment system
CN114506933B (en) * 2021-12-31 2022-11-29 江苏贝克莱恩环境工程有限公司 Sewage multi-stage treatment system

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Application publication date: 20110817