CN105923884A - High-salinity wastewater cold source evaporation zero-emission treating and recycling method - Google Patents
High-salinity wastewater cold source evaporation zero-emission treating and recycling method Download PDFInfo
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- CN105923884A CN105923884A CN201610431670.8A CN201610431670A CN105923884A CN 105923884 A CN105923884 A CN 105923884A CN 201610431670 A CN201610431670 A CN 201610431670A CN 105923884 A CN105923884 A CN 105923884A
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- 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
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- 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
- C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
- C02F1/12—Spray evaporation
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- 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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
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- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- 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
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- Water Treatment By Electricity Or Magnetism (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
Abstract
The invention discloses a high-salinity wastewater cold source evaporation zero-emission treating and recycling method and relates to wastewater treatment. The method includes following steps: 1), adjusting pH value of high-salinity wastewater to 7 through turbidity removal, and enabling the high-salinity wastewater to enter a raw water adjusting tank to stabilize water quantity and water quality; 2), magnifying outgoing water of the raw water adjusting tank through an electromagnetic reactor; 3), increasing temperature of outgoing water of an efficient electromagnetic reactor through a heat pump; 4), entering outgoing water of the heat pump to enter a spray crystallization reactor, and recycling outgoing water of the spray crystallization reactor; 5), regularly scraping solid crystal residue in the spray crystallization reactor. The method is performed at normal temperature and normal pressure, no chemical is added, little electric energy is consumed, secondary pollution is not caused, and wastewater treating cost is lowered substantially. Wastewater treatment is short in time and high in efficiency, and treatment equipment is low in investment and small in occupied area. By the method, zero-emission treatment of the high-salinity wastewater can be realized, no pollutant is discharged into environment, ecological environment is protected, and a key problem in high-salinity wastewater treatment is solved.
Description
Technical field
The present invention relates to waste water process, especially relate to a kind of high-salt wastewater low-temperature receiver evaporation zero discharge treatment and the method for reuse.
Background technology
In Chinese society economic development and urbanization process, water scarcity is being increasingly becoming the sustainable development war of restriction China
One of principal element slightly.In recent years, along with the plant-scale continuous increase of China, industrial water consumption increases sharply.Meanwhile, produce
Wastewater flow rate increases the most rapidly, processes to current waste water and brings huge challenge with recovery and utilization technology.Industrial wastewater is as directly
Discharge, will produce serious pollution to surrounding soil, water body environment.Waste water treated qualified up to standard after, if do not recycled,
Then cause water resource waste, aggravate shortage of water resources.For high-salt wastewater, due to lack technology, feasibility economically with can
By property, great majority are taked to dilute outer discharge method.This method not only can not really reduce the total emission volumn of pollutant, and causes
The discharge of the waste of fresh water, particularly brine waste, certainly will cause fresh water water resource mineralising and alkalization of soils.(Lee's handle edge,
Deng. high-salt wastewater is formed and treatment technology progress [J]. and chemical industry is in progress, and 2014,33 (2): 493-497)
Heat pump techniques is the global energy use technology received much attention in recent years, and its core concept is to consume a small amount of high-grade energy,
Serve as porter with heat energy, the heat of low-temperature heat source " is taken out " to high-order thermal source.Flowing cold-producing medium in heat pump is by making
SAPMAC method is formed.Transporting, under the driving effect of electric power and other energy, the cold-producing medium compressed, cold-producing medium is inhaled in evaporimeter
Receive heat within the condenser to complete heat exchange, the flow of cold-producing medium in throttling expansion valve control system.At various types of heat pumps
In system, power-actuated vapor compression heat pump pressure technology is comparative maturity, and its standardization level is high, and volume is little, and efficiency is high,
Stable performance and maintenance cost are low, more with the obvious advantage than other heat pump and rapidly become market leader (sword. heat pump techniques should
With the research [J] of principle. modern industry economy and informationization, 2015,88 (4): 9-20).
In recent years, spray technique is paid attention to day by day in the application study of field of seawater desalination, and to be developing progressively be that a class is independent
Desalination technology.Spray evaporation desalination technology is desalination method based on low-temperature phase transfer process, and unit scale is flexible, equipment is thrown
Provide moderate, it is convenient to utilizing Lowlevel thermal energy (such as solar energy, underground heat, factory's used heat etc.), therefore application potential is the biggest.Spraying
The principle of evaporation desalination is to be vaporific to spray in vaporization chamber by seawater by shower nozzle, is free air-flow to lead in vaporization chamber simultaneously；It is suspended in
Drop volume in air-flow is the least, and diameter is typically within 100 μm, and specific surface area is the biggest, it is simple to carry out heat with surrounding air
Transmission, the moisture in seawater evaporates rapidly becomes steam, and seawater is thus concentrated；After evaporation process terminates, steam is empty
Air-flow takes vaporization chamber out of, is condensed into fresh water the most again and is reclaimed.In spray evaporation desalination process, the concentration rate of seawater is very
Height, salinity even can with crystallization (Cheng Huaigang, Gao Cong. [J]. modern chemical industry, 2008,28 (6): 19).
Method for treating water based on electromagnetic field effect is the new type water treatment technology the most just grown up, its degraded
Process energy consumption is low, low cost, easily operation, non-secondary pollution, is the technology of a great development prospect.Make at high frequency travelling-magnetic-field
Under with, in water, negative ions is made spiral circular motion in opposite direction by the effect of electromagnetic field Lorentz force, is equivalent to a direction phase
Same circular electric current, a little circular electric current can be illustrated with its dipole moment (abbreviation magnetic moment) by the effect in magnetic field.The direction of magnetic moment
Also can deflect with the change generating period in magnetic field, positive and negative charge center of gravity can be vibrated with the period of change in magnetic field simultaneously.In addition,
Current-carrying coil is usual by rotating torque, translational force and the 3 kinds of power effects of tension force causing deformation, these power in non-homogeneous high-intensity magnetic field
Effect be all to try hard to make increased by the magnetic flux in roundlet current coil.Although there is the obstruction of ion warm-up movement, but along with outer magnetic
Field is the strongest, and ion magnetic moment arranges the most neat；Along with the movement in shape ripple magnetic field, it is stronger that current-carrying coil shifts to magnetic field under above-mentioned effect
Place.Owing to travelling-magnetic-field moves in one direction, therefore negative ions helical ring can be along with the moving direction in magnetic field to a side
To motion, so that substantial amounts of ion can be brought together, play removal of impurities effect (Wang Dongli, etc. electromagnetic water treatment technology is ground
Study carefully progress [J]. oil field equipment, 2007,36 (1): 9-11).
Summary of the invention
The purpose of the present invention aims to provide and utilizes low-temperature receiver evaporation technique, i.e. high-efficiency electromagnetic reactor, heat pump, spray crystallization reactor
Combination realizes a kind of high-salt wastewater low-temperature receiver evaporation zero discharge treatment and the method for reuse of high-salinity wastewater zero-emission process and reuse.
Main processing equipment involved in the present invention is:
Former water regulating reservoir, inductive reaction device, heat pump, spray crystallization reactor.
The present invention comprises the following steps:
1) high-salt wastewater enters former water regulating reservoir stabilizing water quantity and water quality after removal turbidity regulation pH value is to 7；
2) water outlet of former water regulating reservoir is carried out magnetization treatment by inductive reaction device；
3) water outlet of high-efficiency electromagnetic reactor carries out temperature lifting through heat pump；
4) spray crystallization reactor, spray crystallization reactor effluent reuse are entered in heat pump water outlet；
5) in spray crystallization reactor, solid crystal residue periodically strikes off.
The water quality of described high-salt wastewater is as follows: pH value is 6.5～8, CODCrIt is 500～3000mg/L, BOD5It is 20～100mg/L,
TDS is 20000～35000mg/L, and fluoride is 10～30mg/L, total cyanide 0.01～1mg/L, total arsenic 0.01～3.5mg/L,
Total mercury 0.05～100mg/L.
The pond body of former water regulating reservoir is preferably PE anti-corrosion material, and the water inlet at pond body presets pH adjusting agent throwing device, is used for
Regulating water quality, the water yield and pH value.
The built-in graphite electrode plate of high-efficiency electromagnetic reactor, connects power supply and preferably selects frequency modulation high-voltage ac power, (frequency modulation high-voltage alternating
Power supply can use model to be DMC-400, and power output is 500～1000W, and output voltage AC 0～10KV is adjustable, output frequency
Rate 25～50KHZ is adjustable, and manufacturer is Dalian Ding Tong development in science and technology Co., Ltd).
Spray crystallization reactor nozzle preferably selects fan nozzle, and (material is diamondite inlay, and model is 1/4MEG, blows
Firing angle is 45 degree, injection flow 0.5t/d, and manufacturer is Suzhou this Bo Run fluid Science and Technology Ltd.)
Heat pump is preferably with air source heat pump, and (model is ZKFRS-10, temperature range 10～40 DEG C, and internal pipeline material is titanium
Alloy, manufacturer is Guangzhou Keyu Energy Technology Co., Ltd)
Comparing with the processing method of conventionally employed interpolation chemical agent technique, the present invention has following remarkable advantage and an effect:
1, the present invention is carried out under normal temperature and pressure conditions, it is not necessary to adds chemical agent, only consumes a small amount of electric energy, non-secondary pollution,
Its processing cost is greatly lowered.
2, the present invention runs at normal temperature and pressure, and main equipment material is the conventional materials such as PE, it is not necessary to nickel-base alloy or titanium alloy etc.
Anti-corrosion material, is greatly lowered cost of investment, has distinct economic.
3, processing the waste water time short, efficiency is high, and processing equipment less investment, floor space is little.
4, the present invention can realize high-salinity wastewater zero-emission process, it is achieved not exhaust emission material in environment, preserves the ecological environment,
Process for high-salt wastewater and solve critical problem.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
Main processing equipment involved in the present invention is:
Former water regulating reservoir, high-efficiency electromagnetic reactor, heat pump, spray crystallization reactor.Above-mentioned processing equipment can be according to related request
Choose, wherein:
The pond body of former water regulating reservoir is preferably PE anti-corrosion material, and the water inlet at pond body presets pH adjusting agent throwing device, is used for
The regulating water quality water yield and pH value.
The built-in graphite electrode plate of high-efficiency electromagnetic reactor, connects power supply and preferably selects frequency modulation high-voltage ac power, frequency modulation high-voltage alternating
Power supply model is DMC-400, and power output is 500～1000W, and output voltage AC 0～10KV is adjustable, output frequency
25～50KHZ is adjustable, and manufacturer is Dalian Ding Tong development in science and technology Co., Ltd.
Spray crystallization reactor nozzle preferably selects fan nozzle, and material is diamondite inlay, and model is 1/4MEG, blows
Firing angle is 45 degree, injection flow 0.5t/d, and manufacturer is Suzhou this Bo Run fluid Science and Technology Ltd..
Heat pump is preferably with air source heat pump, and model is ZKFRS-10, temperature range 10～40 DEG C, and internal pipeline material is that titanium closes
Gold, manufacturer is Guangzhou Keyu Energy Technology Co., Ltd.
The present invention comprises the following steps:
1) high-salt wastewater enters former water regulating reservoir stabilizing water quantity and water quality after removal turbidity regulation pH value is to 7；
2) water outlet of former water regulating reservoir is carried out magnetization treatment by high-efficiency electromagnetic reactor；
3) water outlet of high-efficiency electromagnetic reactor carries out temperature lifting through heat pump；
4) spray crystallization reactor, spray crystallization reactor effluent reuse are entered in heat pump water outlet；
5) in spray crystallization reactor, solid crystal residue periodically strikes off.
Embodiment 1
Utilizing low-temperature receiver evaporimeter to carry out power plant desulfurization high-salt wastewater process, water quality is as follows: pH value is 6.5, CODCrFor 2250mg/L,
Chloride is 20000mg/L, BOD5Being 25000mg/L for 83.9mg/L, TDS, fluoride is 11.8mg/L, total cyaniding
Thing 0.63mg/L, total arsenic 3.32mg/L, total mercury 0.05mg/L.Experimental result: after operation 24h, wastewater zero discharge rate is 99.9%,
CODcr average removal rate 99.9%, stable equipment operation.
Embodiment 2
Utilizing low-temperature receiver evaporimeter to carry out reverse osmosis concentration high-salt wastewater process, water quality is as follows: pH value is 7.2, CODCrFor
862mg/L, BOD5Being 35000mg/L for 33.8mg/L, TDS, chloride is 17500mg/L, and fluoride is 22.2mg/L,
Total cyanide 0.06mg/L, total arsenic 0.13mg/L, total mercury 0.09mg/L.Experimental result: after running 24h, wastewater zero discharge rate is
99.8%, CODcr average removal rate 99.9%, stable equipment operation.
Embodiment 3
Utilizing low-temperature receiver evaporimeter to carry out chemical industry high-salt wastewater process, water quality is as follows: pH value is 8.0, CODCrFor 564.6mg/L,
BOD5Being 20600mgL for 42.3mg/L, TDS, copper ion is 29600mg/L, and fluoride is 12.8mg/L, total cyaniding
Thing 0.92mg/L, total arsenic 0.87mg/L, total mercury 97.1mg/L.Experimental result: after operation 24h, the average removal rate of SS is 99.3%,
CODcr average removal rate 98.9%, stable equipment operation.
Claims (8)
1. a high-salt wastewater low-temperature receiver evaporation zero discharge treatment and the method for reuse, it is characterised in that comprise the following steps:
1) high-salt wastewater enters former water regulating reservoir stabilizing water quantity and water quality after removal turbidity regulation pH value is to 7；
2) water outlet of former water regulating reservoir is carried out magnetization treatment by inductive reaction device；
3) water outlet of inductive reaction device carries out temperature lifting through heat pump；
4) spray crystallization reactor, spray crystallization reactor effluent reuse are entered in heat pump water outlet；
5) in spray crystallization reactor, solid crystal residue periodically strikes off.
A kind of high-salt wastewater low-temperature receiver the most as claimed in claim 1 evaporation zero discharge treatment and the method for reuse, it is characterised in that described
The water quality of high-salt wastewater is as follows: pH value is 6.5～8, CODCrBeing 500～3000mg/L, BOD5 is 20～100mg/L, TDS
Being 20000～35000mg/L, fluoride is 10～30mg/L, total cyanide 0.01～1mg/L, total arsenic 0.01～3.5mg/L, always
Mercury 0.05～100mg/L.
A kind of high-salt wastewater low-temperature receiver the most as claimed in claim 1 evaporation zero discharge treatment and the method for reuse, it is characterised in that former water
The pond body of regulating reservoir is PE anti-corrosion material, and the water inlet at pond body presets pH adjusting agent throwing device, for regulating water quality, water
Amount and pH value.
A kind of high-salt wastewater low-temperature receiver the most as claimed in claim 1 evaporation zero discharge treatment and the method for reuse, it is characterised in that described
The built-in graphite electrode plate of inductive reaction device, connects power supply and selects frequency modulation high-voltage ac power.
A kind of high-salt wastewater low-temperature receiver the most as claimed in claim 4 evaporation zero discharge treatment and the method for reuse, it is characterised in that described
Frequency modulation high-voltage ac power uses power output to be 500～1000W, and output voltage AC 0～10KV is adjustable, output frequency
25～50KHZ adjustable frequency modulation high-voltage ac powers.
A kind of high-salt wastewater low-temperature receiver the most as claimed in claim 1 evaporation zero discharge treatment and the method for reuse, it is characterised in that described
Spray crystallization reactor nozzle selects fan nozzle.
A kind of high-salt wastewater low-temperature receiver the most as claimed in claim 6 evaporation zero discharge treatment and the method for reuse, it is characterised in that described
The material of fan nozzle is diamondite inlay, and blowing firing angle is 45 degree, injection flow 0.5t/d.
A kind of high-salt wastewater low-temperature receiver the most as claimed in claim 1 evaporation zero discharge treatment and the method for reuse, it is characterised in that described
Heat pump uses air source heat pump.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904779A (en) * | 2017-03-29 | 2017-06-30 | 厦门诺迪膜科技有限公司 | A kind of high-salt wastewater low-temperature receiver evaporation zero discharge treatment and the method for reuse |
| CN108793571A (en) * | 2018-06-07 | 2018-11-13 | 合肥卡若环保科技合伙企业（有限合伙） | A kind of reinforcing desalination high-salt wastewater processing system |
| CN108947085A (en) * | 2018-07-10 | 2018-12-07 | 新疆中泰新鑫化工科技股份有限公司 | High-salt wastewater is atomized recovery and treatment method |
| CN109052801A (en) * | 2018-10-16 | 2018-12-21 | 江苏环保产业技术研究院股份公司 | A kind of high-salt wastewater low-temperature evaporation crystallization processes and device |
| CN109384343A (en) * | 2017-08-11 | 2019-02-26 | 江苏商达水务有限公司 | A kind of high-concentration salt-containing wastewater treatment process |
| CN109502874A (en) * | 2018-11-16 | 2019-03-22 | 西北矿冶研究院 | Device and method for strengthening evaporation crystallization of arsenic trioxide |
| CN112723647A (en) * | 2020-12-29 | 2021-04-30 | 东莞市格美节能设备有限公司 | Zero-emission treatment and recycling method of high-salinity wastewater photocatalytic electromagnetic reactor |
| CN113121062A (en) * | 2019-12-31 | 2021-07-16 | 中国石油化工股份有限公司 | Method and device for treating fluorine-containing high-salt organic wastewater |
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| CN1034035A (en) * | 1988-01-05 | 1989-07-19 | 张志华 | Internally installed fluid magnetic core |
| CN102139982A (en) * | 2011-01-31 | 2011-08-03 | 陆一心 | Water purification and regeneration device based on rotary spray evaporation and application of device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1034035A (en) * | 1988-01-05 | 1989-07-19 | 张志华 | Internally installed fluid magnetic core |
| CN102139982A (en) * | 2011-01-31 | 2011-08-03 | 陆一心 | Water purification and regeneration device based on rotary spray evaporation and application of device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904779A (en) * | 2017-03-29 | 2017-06-30 | 厦门诺迪膜科技有限公司 | A kind of high-salt wastewater low-temperature receiver evaporation zero discharge treatment and the method for reuse |
| CN109384343A (en) * | 2017-08-11 | 2019-02-26 | 江苏商达水务有限公司 | A kind of high-concentration salt-containing wastewater treatment process |
| CN108793571A (en) * | 2018-06-07 | 2018-11-13 | 合肥卡若环保科技合伙企业（有限合伙） | A kind of reinforcing desalination high-salt wastewater processing system |
| CN108947085A (en) * | 2018-07-10 | 2018-12-07 | 新疆中泰新鑫化工科技股份有限公司 | High-salt wastewater is atomized recovery and treatment method |
| CN109052801A (en) * | 2018-10-16 | 2018-12-21 | 江苏环保产业技术研究院股份公司 | A kind of high-salt wastewater low-temperature evaporation crystallization processes and device |
| CN109502874A (en) * | 2018-11-16 | 2019-03-22 | 西北矿冶研究院 | Device and method for strengthening evaporation crystallization of arsenic trioxide |
| CN109502874B (en) * | 2018-11-16 | 2021-11-16 | 西北矿冶研究院 | Device and method for strengthening evaporation crystallization of arsenic trioxide |
| CN113121062A (en) * | 2019-12-31 | 2021-07-16 | 中国石油化工股份有限公司 | Method and device for treating fluorine-containing high-salt organic wastewater |
| CN112723647A (en) * | 2020-12-29 | 2021-04-30 | 东莞市格美节能设备有限公司 | Zero-emission treatment and recycling method of high-salinity wastewater photocatalytic electromagnetic reactor |
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