CN107215987A - Sewage disposal system and handling process - Google Patents
Sewage disposal system and handling process Download PDFInfo
- Publication number
- CN107215987A CN107215987A CN201710672436.9A CN201710672436A CN107215987A CN 107215987 A CN107215987 A CN 107215987A CN 201710672436 A CN201710672436 A CN 201710672436A CN 107215987 A CN107215987 A CN 107215987A
- Authority
- CN
- China
- Prior art keywords
- sewage
- station
- water
- backwater
- effect evaporator
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/346—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from semiconductor processing, e.g. waste water from polishing of wafers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The present invention provides sewage disposal system and handling process, the system includes process for producing sewage and the water station, Desultwater Station, two backwater stations, three-protection design station, three wastes pollution discharge pond, the first elevator pump, mechanical filter and the triple effect evaporator that are sequentially connected, the two backwater station and triple effect evaporator circulate connection water station, and the two backwater station includes air flotation device, the first dosing pump, integrated water purifier, ultra filtration device and the RO counter-osmosis devices being sequentially connected；The system also includes Pretreatment of Domestic Sewage and the underground sewage disposal system device, the second elevator pump, the second dosing pump, pipe-line mixer, more medium filter and the ultrafilter that are sequentially connected, the more medium filter and ultrafilter circulate connection underground sewage disposal system device, the ultrafilter is connected with water station, the sewage water treatment method can prevent from polluting environment, saving production cost.
Description
Technical field
The present invention relates to sewage treatment area, more particularly to sewage disposal system and handling process.
Background technology
With World Economics and industrialized process, the demand to water is being constantly increasing, and the thing followed is waste water
Discharge capacity it is also increasing, discharge standard is also more and more stricter.Polysilicon is manufacture integrated circuit, photovoltaic solar cell etc.
The key foundation material of product, is the important foundation stone of Information of Development industry and Photovoltaic new energy industry, but polysilicon was being produced
Waste gas, discharge of wastewater are inevitably produced in journey, and thus produces serious problem of environmental pollution, this turns into polysilicon
One of key that can industry survive and develop in a healthy way.
Especially during the vent gas treatment of polysilicon, hydrolyzing chlorosilane produces hydrogen chloride, and hydrogen chloride is dissolved in water and produced greatly
High salinity waste water is measured, these wastewater treatments are improper to make chlorinity in efflux wastewater exceeded, and periphery water environment is polluted.It is many
Crystal silicon producing region can also produce a large amount of sanitary sewages, and traditional sanitary sewage is directly outer row mostly, considerably increases polycrystalline
The production cost of silicon production.
In consideration of it, being necessary design sewage disposal system and handling process to solve the above problems.
The content of the invention
The technical problem to be solved in the present invention is：There is provided one kind can prevent from polluting environment, save the zero-emission of production cost
Put sewage disposal system and handling process.
To reach above-mentioned purpose, the invention provides following technical scheme：
A kind of technical scheme：
Sewage treatment process, it is comprised the following steps that：
Production waste enters Desultwater Station via water station first, in Desultwater Station eliminates sewage by filtering and counter-infiltration
Solid impurity, colloid, larger molecular organicses and salt ion, are delivered to each by the product water for handling qualified and use water spot；Then
The solid impurity that the sewage discharged from Desultwater Station is flowed into the two further filter sewages in backwater station, sewage is in two backwater stations
The COD that air flotation device changes sewage is first passed around, then oxidant, flocculation aid and flocculant are added into sewage sewage is sterilized
And cause the charged particle in sewage to solidify to form floccule, it is then passed through integrated water purifier, ultra filtration device and RO reverse osmosis
Saturating device removes solid impurity, colloid, larger molecular organicses and salt ion, and handling qualified product water through two backwater stations just flows back to water
Recycled in standing；The sewage discharged from two backwater stations continues to flow into three-protection design station, and production of polysilicon row is removed for eluting
The chlorosilane and hydrogen chloride in waste gas are put, a part of sewage after elution is used to be discharged to boiler progress after handling through three-protection design station
Put out slag；From three-protection design station discharge another part sewage flow into successively three wastes pollution discharge pond, the first elevator pump, mechanical filter and
Triple effect evaporator, steam is passed through into triple effect evaporator, and sewage is vaporized through heat exchanger, and high concentration salinity is divided from sewage
From its obtained distillation condensation flow backwater station is recycled, and the solid waste of triple effect evaporator discharge just sends out outward transport landfill.
Further, the sewage water treatment method also first passes around the reduction of underground sewage disposal system device including sanitary sewage
COD and BOD；It is pumped into again via the second lifting in pipe-line mixer, and to adding oxidant, flocculation aid in pipe-line mixer
Sewage is sterilized with flocculant so that the charged particle in sewage is frozen into floccule；Then multimedium is passed sequentially through
Filter and ultrafilter multi-filtering, the draining of more medium filter and ultrafilter return to above-mentioned underground sewage disposal system
Think highly of new filtering pretreatment；Sanitary sewage after being filtered through ultrafilter, which is connected in water station, carries out advanced treatment and reclamation.
Further, the water station includes the circulating water pool of the product water of reception processing and receives sewage and/or life
The circulating sewage pond of sewage.
Further, the flocculant uses the weight ratio of aluminium chloride and ST efficient flocculants for 20-25：1 mixing
Input.
Further, the flocculant uses aluminium chloride 5-10ppm or ST efficient flocculant 0.2-0.5ppm.
Further, 6≤PH≤9 in the triple effect evaporator.
Another technical scheme：
Sewage disposal system, its water station for including being sequentially connected, Desultwater Station, two backwater stations, three-protection design station, three wastes blowdown
Pond, the first elevator pump, mechanical filter and triple effect evaporator, the two backwater station and triple effect evaporator circulate connection water
Stand, the two backwater station includes air flotation device, integrated water purifier, ultra filtration device and the RO counter-osmosis devices being sequentially connected, institute
State and the first dosing pump is provided between air flotation device and integrated water purifier.
Further, the sewage disposal system also include be sequentially connected underground sewage disposal system device, the second elevator pump,
Pipe-line mixer, more medium filter and ultrafilter, are provided with the second dosing pump between second elevator pump and pipe-line mixer,
The more medium filter and ultrafilter circulate connection underground sewage disposal system device, and the ultrafilter is connected with water station.
Further, the water station includes circulating water pool and circulating sewage pond, the circulating sewage pond and the desalination of series winding
Water station is connected, and the two backwater station and triple effect evaporator are connected with circulating water pool, and the ultrafilter is connected with circulating sewage pond.
Prior art is compared, and the present invention at least has advantages below：The impurity and high salinity in sewage can be efficiently separated, makes it can be with
Fully obtain cycle applications, it is therefore prevented that influence of the production waste to environment, realize zero-emission；And it is of the invention rationally to live dirty
Water is jointly processed by with production waste, saves production cost, improves the utilization rate of sewage.
Embodiment
The preferred embodiment of the present invention is described below.
The present invention be sewage disposal system, including be sequentially connected water station, Desultwater Station, two backwater stations, three-protection design station,
Three wastes pollution discharge pond, the first elevator pump, mechanical filter and triple effect evaporator.The two backwater station and triple effect evaporator are circulated
Connect water station.The two backwater station includes air flotation device, integrated water purifier, ultra filtration device and the RO counter-infiltrations being sequentially connected
Device.The first dosing pump is provided between the air flotation device and integrated water purifier.
The zero-emission sewage disposal system also includes the pretreatment module to sanitary sewage.The pretreatment module includes
Underground sewage disposal system device, the second elevator pump, pipe-line mixer, more medium filter and the ultrafilter being sequentially connected.Described
The second dosing pump is provided between two elevator pumps and pipe-line mixer.It is buried that the more medium filter and ultrafilter circulate connection
Formula apparatus for treating sewage.The ultrafilter is connected with water station.
Water treatment technology, it is comprised the following steps that：
Production waste enters Desultwater Station via water station first, in Desultwater Station eliminates sewage by filtering and counter-infiltration
Solid impurity, colloid, larger molecular organicses and salt ion, are delivered to each by the product water for handling qualified and use water spot；Then
The solid impurity that the sewage discharged from Desultwater Station is flowed into the two further filter sewages in backwater station, sewage is in two backwater stations
The COD that air flotation device changes sewage is first passed around, then oxidant, flocculation aid and flocculant are added into sewage sewage is sterilized
And cause the charged particle in sewage to solidify to form floccule, it is then passed through integrated water purifier, ultra filtration device and RO reverse osmosis
Saturating device removes solid impurity, colloid, larger molecular organicses and salt ion, and handling qualified product water through two backwater stations just flows back to water
Recycled in standing；The sewage discharged from two backwater stations continues to flow into three-protection design station, and production of polysilicon row is removed for eluting
The chlorosilane and hydrogen chloride in waste gas are put, a part of sewage after elution is used to be discharged to boiler progress after handling through three-protection design station
Put out slag；From three-protection design station discharge another part sewage flow into successively three wastes pollution discharge pond, the first elevator pump, mechanical filter and
Triple effect evaporator, steam is passed through into triple effect evaporator, and sewage is vaporized through heat exchanger, and high concentration salinity is divided from sewage
From its obtained distillation condensation flow backwater station is recycled, and the solid waste of triple effect evaporator discharge just sends out outward transport landfill.
Presently preferred embodiments of the present invention is these are only, the scope of the present invention should not be limited with this.It is i.e. every to be weighed according to the present invention
The simple equivalent changes and modifications that sharp claim and description are made, all should still belong to the scope that patent of the present invention covers
It is interior.Sewage living, which is connected in water station, carries out advanced treatment and reclamation.
Claims (7)
1. sewage treatment process, it is characterised in that：Comprise the following steps that：Production waste enters desalted water via water station first
Stand, Desultwater Station by filter and counter-infiltration eliminate solid impurity, colloid, larger molecular organicses and salt in sewage from
Son, is delivered to each by the product water for handling qualified and uses water spot；Then the sewage discharged from Desultwater Station flows into two backwater
The solid impurity stood in further filter sewage, sewage first passes around the COD that air flotation device changes sewage in two backwater stations,
Oxidant, flocculation aid are added into sewage again and flocculant is sterilized by sewage and so that the charged particle in sewage solidifies to form wadding
Shape thing, is then passed through integrated water purifier, ultra filtration device and RO counter-osmosis devices removal solid impurity, colloid, macromolecular organic
Thing and salt ion, just flow back in water station through the qualified product water of two backwater stations processing and recycle；The dirt discharged from two backwater stations
Water continues to flow into three-protection design station, for eluting the chlorosilane and hydrogen chloride that remove in production of polysilicon discharge waste gas, after elution
A part of sewage through three-protection design station handle after be used for be discharged to boiler carry out put out slag；The another part discharged from three-protection design station
Sewage flows into three wastes pollution discharge pond, the first elevator pump, mechanical filter and triple effect evaporator successively, and steaming is passed through into triple effect evaporator
Gas, sewage is vaporized through heat exchanger, and high concentration salinity is separated from sewage, the circulation of its obtained distillation condensation flow backwater station
Utilize, the solid waste of triple effect evaporator discharge just sends out outward transport landfill.
2. sewage treatment process as claimed in claim 1, it is characterised in that：The sewage water treatment method also includes sanitary sewage
First pass around underground sewage disposal system device reduction COD and BOD；It is pumped into again via the second lifting in pipe-line mixer, and to
Add oxidant, flocculation aid and flocculant in pipe-line mixer to sterilize sewage so that the charged particle solidification in sewage
Into floccule；Then more medium filter and ultrafilter multi-filtering, the draining of more medium filter and ultrafilter are passed sequentially through
Return to above-mentioned underground sewage disposal system and think highly of new filtering pretreatment；Sanitary sewage after being filtered through ultrafilter is connected to water station
Middle carry out advanced treatment and reclamation.
3. sewage treatment process as claimed in claim 2, it is characterised in that：The water station includes the product water of reception processing
Circulating water pool and receive the circulating sewage pond of sewage and/or sanitary sewage.
4. sewage treatment process as claimed in claim 1, it is characterised in that：The flocculant is high using aluminium chloride and ST
The weight ratio for imitating flocculant is 20-25：1 mixing input.
5. sewage treatment process as claimed in claim 2, it is characterised in that：The flocculant uses aluminium chloride 5-
10ppm or ST efficient flocculants 0.2-0.5ppm.
6. sewage treatment process as claimed in claim 2, it is characterised in that：6≤PH≤9 in the triple effect evaporator.
7. sewage disposal system, it is characterised in that：The sewage-treatment plant system includes water station, the desalted water being sequentially connected
Stand, two backwater stations, three wastes elution pond, three wastes pollution discharge pond, the first elevator pump, mechanical filter and triple effect evaporator, described two
Backwater station and triple effect evaporator circulate connection water station, and air flotation device that the two backwater station includes being sequentially connected, one are net
Hydrophone, ultra filtration device and RO counter-osmosis devices, are provided with the first dosing pump between the air flotation device and integrated water purifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710672436.9A CN107215987A (en) | 2017-08-08 | 2017-08-08 | Sewage disposal system and handling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710672436.9A CN107215987A (en) | 2017-08-08 | 2017-08-08 | Sewage disposal system and handling process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107215987A true CN107215987A (en) | 2017-09-29 |
Family
ID=59955192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710672436.9A Pending CN107215987A (en) | 2017-08-08 | 2017-08-08 | Sewage disposal system and handling process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107215987A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112811721A (en) * | 2020-12-31 | 2021-05-18 | 新疆协鑫新能源材料科技有限公司 | Comprehensive water-saving production system and method for whole process of polycrystalline silicon production by GCL method |
-
2017
- 2017-08-08 CN CN201710672436.9A patent/CN107215987A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112811721A (en) * | 2020-12-31 | 2021-05-18 | 新疆协鑫新能源材料科技有限公司 | Comprehensive water-saving production system and method for whole process of polycrystalline silicon production by GCL method |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Hao Inventor after: Liu Changlin Inventor after: Li Jun Inventor after: Shi Hongbing Inventor after: Liu Jizhuang Inventor after: Wang Qingcheng Inventor before: Liu Hao Inventor before: Liu Sha Inventor before: Chen Xiqing |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170929 |