CN108298759A - A kind of urban sewage treatment system and method based on the separation of magnetic enhanced coagulation - Google Patents

A kind of urban sewage treatment system and method based on the separation of magnetic enhanced coagulation Download PDF

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Publication number
CN108298759A
CN108298759A CN201810312198.5A CN201810312198A CN108298759A CN 108298759 A CN108298759 A CN 108298759A CN 201810312198 A CN201810312198 A CN 201810312198A CN 108298759 A CN108298759 A CN 108298759A
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CN
China
Prior art keywords
magnetic
sludge
duct type
separation
sewage
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.)
Pending
Application number
CN201810312198.5A
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Chinese (zh)
Inventor
成磊
王晓明
史佩伟
冉红想
彭欣苓
胡永会
尚红亮
朱道瑶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BGRIMM Technology Group Co Ltd
North Mine Electrical Technology Co Ltd
Original Assignee
BGRIMM Technology Group Co Ltd
North Mine Electrical Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BGRIMM Technology Group Co Ltd, North Mine Electrical Technology Co Ltd filed Critical BGRIMM Technology Group Co Ltd
Priority to CN201810312198.5A priority Critical patent/CN108298759A/en
Publication of CN108298759A publication Critical patent/CN108298759A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/48Treatment of water, waste water, or sewage with magnetic or electric fields
    • C02F1/488Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds

Abstract

The invention discloses a kind of urban sewage treatment systems and method based on the separation of magnetic enhanced coagulation, including sequentially connected duct type pre-magnetization device, coagulating basin, magnetic force accelerated sedimentation equipment, high-speed shearing machine, magnetic kind to recycle special magnetic separator, duct type demagnetizer, duct type demagnetizer.Processing method includes mainly that sewage premagnetization magnetic kind load sludge coagulation helical magnetic field accelerates activated sludge floc precipitation magnetic kind to detach the demagnetized magnetic kind of multipole alternating magnetic field high efficiente callback magnetic kind magnetic oscillation magnetic kind with sludge high speed shear and add again to recycle.The efficient reuse of the rapid subsidence and " magnetic kind " of microfine suspended matter is realized by the whole process covering of magnetic technology, the waterpower precipitation residence time is greatly decreased, improve sewage treating efficiency, stablize effluent quality, realize the pollutants such as round-the-clock efficient drop total phosphorus, mitigate two stage treatment technical load, will significantly reduce planning floor space, reduces operating cost.

Description

A kind of urban sewage treatment system and method based on the separation of magnetic enhanced coagulation
Technical field
The present invention relates to a kind of urban sewage treatment technology more particularly to a kind of city based on the separation of magnetic enhanced coagulation are dirty Water treatment system and method.
Background technology
Generally contain organic pollution (COD, BOD5), a large amount of suspended matter (SS) in municipal sewage, and rich in nitrogen, phosphorus member Plain (TN, TP), will generally collect into sewage treatment plant, at physics, chemistry, physical chemistry and biological method Reason.
Municipal sewage plant or regeneration water factory mostly use coagulating sedimentation cooperation biological method and are handled, coagulating sedimentation work Skill is separated by solid-liquid separation using the big feature of suspended solid density ratio water by sinking to realizing naturally.But it since solid-liquid density difference is small, leads Cause there are hydraulic detention times it is long, unit area processing capacity is small, solid-liquid separation effect is poor the problems such as, become existing sewage disposal Expand and can, carry the bottleneck for being denoted as industry, at the same at present biological treatment system exist to the pollutants index comprehensive removal efficiency such as nitrogen, phosphorus with The big problem of seasonal fluctuations, leads to that the treatment effeciency of existing sewage treatment unit is low, take up a large area, effluent quality is unstable Fixed or even part effluent index is difficult to reach design value.
Invention content
The object of the present invention is to provide a kind of simple urban sewage treatment systems efficiently based on the separation of magnetic enhanced coagulation And method.
The purpose of the present invention is what is be achieved through the following technical solutions:
The urban sewage treatment system based on the separation of magnetic enhanced coagulation of the present invention, including sequentially connected duct type premagnetization Device, coagulating basin, magnetic force accelerated sedimentation equipment, high-speed shearing machine, magnetic kind recycle special magnetic separator, duct type demagnetizer, described mixed Solidifying pond is equipped with flocculant adding apparatus, magnetic kind adding set and flocculation aid adding set, the duct type demagnetizer and coagulating basin Between be equipped with magnetic kind recovery channel.
The method for the treatment of city waste water based on the separation of magnetic enhanced coagulation of the present invention, including step:
Magnetization treatment is carried out to sewage first, sewage premagnetization is realized using duct type pre-magnetization device, with strengthening subsequent flow The electrical neutralization of middle suspended particulate;
Sewage after premagnetization enters coagulating basin, is realized in sewage by dosing magnetic kind, flocculant, flocculation aid in coagulating basin Suspended contaminant forms magnetic coagulation floccule body;
The activated sludge floc of magnetic coagulation high-efficiency sedimentation in magnetic force accelerated sedimentation equipment in water, the clear water point with upper layer overflow From;
Primary water is water outlet, and the sludge part of sedimentation flows back into coagulating basin through sludge reflux pump and continues to participate in reaction, remaining Part feeds high-speed shearing machine and realizes that magnetic kind and sludge are broken up, and then recycles special magnetic separator by magnetic kind and recycles magnetic kind, recycling After magnetic kind afterwards eliminates magnetic coagulation by duct type demagnetizer, then it is added in coagulating basin and recycles;
Sludge enters follow-up Treatment of Sludge link.
As seen from the above technical solution provided by the invention, provided in an embodiment of the present invention based on magnetic enhanced coagulation point From urban sewage treatment system and method, by the covering of the whole process of magnetic technology realize the rapid subsidence of microfine suspended matter with The efficient reuse of " magnetic kind " is greatly decreased the waterpower precipitation residence time, improves sewage treating efficiency, stablize effluent quality, realizes The pollutants such as round-the-clock efficient drop total phosphorus mitigate two stage treatment technical load, will significantly reduce planning floor space, reduce fortune Row cost.
Description of the drawings
Fig. 1 is the structural representation of the urban sewage treatment system provided in an embodiment of the present invention based on the separation of magnetic enhanced coagulation Figure.
In figure:
1- duct type pre-magnetization devices;2- coagulating basins;3- flocculants;4- magnetic kinds;5- flocculation aids;6- magnetic force accelerated sedimentation equipment; 7- high-speed shearing machines;8- magnetic kinds recycle special magnetic separator;9- duct type demagnetizers.
Specific implementation mode
The embodiment of the present invention will be described in further detail below.What is be not described in detail in the embodiment of the present invention is interior Appearance belongs to the prior art well known to professional and technical personnel in the field.
The urban sewage treatment system based on the separation of magnetic enhanced coagulation of the present invention, preferable specific implementation mode is as schemed Shown in 1:
It is returned including sequentially connected duct type pre-magnetization device, coagulating basin, magnetic force accelerated sedimentation equipment, high-speed shearing machine, magnetic kind Special magnetic separator, duct type demagnetizer are received, the coagulating basin adds equipped with flocculant adding apparatus, magnetic kind adding set and flocculation aid Feeder apparatus is equipped with magnetic kind recovery channel between the duct type demagnetizer and coagulating basin.
The magnetic kind recovery channel is equipped with duct type demagnetizer.
Sludge return pipe is equipped between the sludge outlet and coagulating basin of the magnetic force accelerated sedimentation equipment.
The sludge return pipe is equipped with sludge pump.
The method for the treatment of city waste water based on the separation of magnetic enhanced coagulation of the present invention, preferable specific implementation mode are:
Including step:
Magnetization treatment is carried out to sewage first, sewage premagnetization is realized using duct type pre-magnetization device, with strengthening subsequent flow The electrical neutralization of middle suspended particulate;
Sewage after premagnetization enters coagulating basin, is realized in sewage by dosing magnetic kind, flocculant, flocculation aid in coagulating basin Suspended contaminant forms magnetic coagulation floccule body;
The activated sludge floc of magnetic coagulation high-efficiency sedimentation in magnetic force accelerated sedimentation equipment in water, the clear water point with upper layer overflow From;
Primary water is water outlet, and the sludge part of sedimentation flows back into coagulating basin through sludge reflux pump and continues to participate in reaction, remaining Part feeds high-speed shearing machine and realizes that magnetic kind and sludge are broken up, and then recycles special magnetic separator by magnetic kind and recycles magnetic kind, recycling After magnetic kind afterwards eliminates magnetic coagulation by duct type demagnetizer, then it is added in coagulating basin and recycles;
Sludge enters follow-up Treatment of Sludge link.
Magnetic field intensity >=1000Gs of the duct type pre-magnetization device action space, magnetic kind are TFe grades in 65% or more, grain Spend the magnet fine powder of -200 80% or more mesh;
The flocculant is PB1 gene, and flocculation aid is polyacrylamide PAM;
Magnetic field intensity >=1000Gs of the magnetic force accelerated sedimentation equipment action space, the activated sludge floc sedimentation of magnetic load Speed reaches 3 ㎝ s-1
It is 3500Gs-6500Gs that the magnetic kind, which recycles special magnetic separator magnetic field intensity,;
The duct type demagnetizer action space magnetic field intensity >=1000Gs.
The sewage of this method processing includes municipal wastewater, river black and odorous water, industrial wastewater, villages and small towns sewage.
The urban sewage treatment system and method based on the separation of magnetic enhanced coagulation of the present invention, solves existing coagulating sedimentation The problem that process efficiency is low, take up a large area, effluent quality is unstable etc..
Specific embodiment:
Include mainly sewage premagnetization-magnetic kind load sludge coagulation-helical magnetic field accelerate activated sludge floc precipitation-magnetic kind with Sludge high speed shear separation-multipole alternating magnetic field high efficiente callback magnetic kind-magnetic oscillation magnetic kind is demagnetized-and magnetic kind adds cycle profit again With.
Magnetization treatment is carried out to sewage first, sewage premagnetization is realized using duct type pre-magnetization device, with strengthening subsequent flow The electrical neutralization of middle suspended particulate;Sewage after premagnetization enters coagulating basin, by dosing magnetic kind in coagulating basin, flocculant, helping Solidifying agent realizes that suspended contaminant forms magnetic coagulation floccule body in sewage;The activated sludge floc of magnetic coagulation is in magnetic force accelerated sedimentation in water Settling apparatus in high-efficiency sedimentation, detached with the clear water of upper layer overflow;Primary water is water outlet, and the sludge part of sedimentation is returned through sludge Stream blowback flows to coagulating basin and continues to participate in reaction, and rest part feeds high-speed shearing machine and realizes that magnetic kind and sludge are broken up, then leads to It crosses magnetic kind and recycles special magnetic separator recycling magnetic kind, after the magnetic kind after recycling is by duct type demagnetizer elimination magnetic coagulation, can throw again It is added in coagulating basin and recycles;Sludge enters follow-up Treatment of Sludge link.
The accessible sewage of this method includes municipal wastewater, river black and odorous water, industrial wastewater, villages and small towns sewage etc..
Magnetic field intensity >=1000Gs of duct type pre-magnetization device action space;Magnetic kind is TFe grades in 65% or more, granularity- The magnet fine powder of 200 80% or more mesh;Flocculant can be PB1 gene, and flocculation aid can be polyacrylamide PAM;Magnetic force The activated sludge floc sinking speed of magnetic field intensity >=1000Gs of accelerated sedimentation equipment action space, magnetic load reach 3 ㎝ s-1, It is 3500Gs-6500Gs that magnetic kind, which recycles special magnetic separator magnetic field intensity,;Duct type demagnetizer action space magnetic field intensity >= 1000Gs。
The present invention realizes the efficient of the rapid subsidence of microfine suspended matter and " magnetic kind " by the covering of the whole process of magnetic technology Reuse is greatly decreased the waterpower precipitation residence time, improves sewage treating efficiency, stablize effluent quality, realizes round-the-clock efficient drop The pollutants such as total phosphorus mitigate two stage treatment technical load, will significantly reduce planning floor space, reduce operating cost.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Any one skilled in the art is in the technical scope of present disclosure, the change or replacement that can be readily occurred in, It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims Subject to enclosing.

Claims (7)

1. a kind of urban sewage treatment system based on the separation of magnetic enhanced coagulation, which is characterized in that including sequentially connected pipeline Formula pre-magnetization device, coagulating basin, magnetic force accelerated sedimentation equipment, high-speed shearing machine, magnetic kind recycle special magnetic separator, duct type demagnetizer, The coagulating basin be equipped with flocculant adding apparatus, magnetic kind adding set and flocculation aid adding set, the duct type demagnetizer with Magnetic kind recovery channel is equipped between coagulating basin.
2. the urban sewage treatment system according to claim 1 based on the separation of magnetic enhanced coagulation, which is characterized in that described Magnetic kind recovery channel is equipped with duct type demagnetizer.
3. the urban sewage treatment system according to claim 2 based on the separation of magnetic enhanced coagulation, which is characterized in that described Sludge return pipe is equipped between the sludge outlet and coagulating basin of magnetic force accelerated sedimentation equipment.
4. the urban sewage treatment system according to claim 3 based on the separation of magnetic enhanced coagulation, which is characterized in that described Sludge return pipe is equipped with sludge pump.
5. a kind of method for the treatment of city waste water based on the separation of magnetic enhanced coagulation, which is characterized in that including step:
Magnetization treatment is carried out to sewage first, sewage premagnetization is realized using duct type pre-magnetization device, to be hanged in strengthening subsequent flow The electrical neutralization of floating particles;
Sewage after premagnetization enters coagulating basin, realizes in sewage and suspends by dosing magnetic kind, flocculant, flocculation aid in coagulating basin Pollutant forms magnetic coagulation floccule body;
The activated sludge floc of magnetic coagulation high-efficiency sedimentation in magnetic force accelerated sedimentation equipment, detaches with the clear water of upper layer overflow in water;
Primary water is water outlet, and the sludge part of sedimentation flows back into coagulating basin through sludge reflux pump and continues to participate in reaction, rest part It feeds high-speed shearing machine and realizes that magnetic kind and sludge are broken up, special magnetic separator is then recycled by magnetic kind and recycles magnetic kind, after recycling After magnetic kind eliminates magnetic coagulation by duct type demagnetizer, then it is added in coagulating basin and recycles;
Sludge enters follow-up Treatment of Sludge link.
6. the method for the treatment of city waste water according to claim 5 based on the separation of magnetic enhanced coagulation, which is characterized in that described Magnetic field intensity >=1000Gs of duct type pre-magnetization device action space, magnetic kind are TFe grades in -200 mesh 80% of 65% or more, granularity Above magnet fine powder;
The flocculant is PB1 gene, and flocculation aid is polyacrylamide PAM;
Magnetic field intensity >=1000Gs of the magnetic force accelerated sedimentation equipment action space, the activated sludge floc sinking speed of magnetic load Reach 3 ㎝ s-1
It is 3500Gs-6500Gs that the magnetic kind, which recycles special magnetic separator magnetic field intensity,;
The duct type demagnetizer action space magnetic field intensity >=1000Gs.
7. urban sewage treatment system and method, feature according to claim 6 based on the separation of magnetic enhanced coagulation exist In the sewage of this method processing includes municipal wastewater, river black and odorous water, industrial wastewater, villages and small towns sewage.
CN201810312198.5A 2018-04-09 2018-04-09 A kind of urban sewage treatment system and method based on the separation of magnetic enhanced coagulation Pending CN108298759A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810312198.5A CN108298759A (en) 2018-04-09 2018-04-09 A kind of urban sewage treatment system and method based on the separation of magnetic enhanced coagulation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810312198.5A CN108298759A (en) 2018-04-09 2018-04-09 A kind of urban sewage treatment system and method based on the separation of magnetic enhanced coagulation

Publications (1)

Publication Number Publication Date
CN108298759A true CN108298759A (en) 2018-07-20

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109351000A (en) * 2018-12-13 2019-02-19 佛山科学技术学院 A kind of clarifying basin for sewage treatment
CN110577315A (en) * 2019-09-29 2019-12-17 中国环境科学研究院 Whole-process treatment method for phytoplankton

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109351000A (en) * 2018-12-13 2019-02-19 佛山科学技术学院 A kind of clarifying basin for sewage treatment
CN110577315A (en) * 2019-09-29 2019-12-17 中国环境科学研究院 Whole-process treatment method for phytoplankton
WO2021057553A1 (en) * 2019-09-29 2021-04-01 中国环境科学研究院 Full-process treatment method for phytoplankton

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