CN105923884B - A kind of method that high-salt wastewater cold source evaporates zero discharge treatment and reuse - Google Patents
A kind of method that high-salt wastewater cold source evaporates zero discharge treatment and reuse Download PDFInfo
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- CN105923884B CN105923884B CN201610431670.8A CN201610431670A CN105923884B CN 105923884 B CN105923884 B CN 105923884B CN 201610431670 A CN201610431670 A CN 201610431670A CN 105923884 B CN105923884 B CN 105923884B
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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
Abstract
A kind of method that high-salt wastewater cold source evaporates zero discharge treatment and reuse, is related to wastewater treatment.The following steps are included: 1) high-salt wastewater enters raw water conditioning tank stabilizing water quantity and water quality after removal turbidity adjusting pH value to 7；2) water outlet of raw water conditioning tank is subjected to magnetization treatment by inductive reaction device；3) water outlet of high-efficiency electromagnetic reactor carries out temperature promotion by heat pump；4) heat pump is discharged into spray crystallization reactor, spray crystallization reactor effluent reuse；5) solid crystal residue periodically strikes off in spray crystallization reactor.It carries out under normal temperature and pressure conditions, does not need addition chemical agent, only consume a small amount of electric energy, it is without secondary pollution, its processing cost is greatly lowered.The processing waste water time is short, high-efficient, processing equipment less investment, and occupied area is small.High-salinity wastewater zero-emission processing can be achieved, realize the not exhaust emission substance into environment, preserve the ecological environment, solve critical problem for high-salt wastewater processing.
Description
Technical field
The present invention relates to wastewater treatments, and the side of zero discharge treatment and reuse is evaporated more particularly, to a kind of high-salt wastewater cold source
Method.
Background technique
In Chinese society economic development and urbanization process, it is sustainable that water scarcity is being increasingly becoming restriction China
One of principal element of development strategy.In recent years, with the plant-scale continuous increase in China, industrial water consumption increases sharply.Meanwhile
It generates wastewater flow rate also to increase rapidly, brings huge challenge to current wastewater treatment and recovery and utilization technology.Industrial wastewater
Such as direct emission, serious pollution will be generated to surrounding soil, water body environment.Waste water is after processing qualification is up to standard, if do not recycled
It utilizes, then causes water resource waste, aggravate shortage of water resources.For high-salt wastewater, due to lacking technology, feasibility economically
It is most of to take the outer discharge method of dilution with reliability.This method not only cannot really reduce the total emission volumn of pollutant, and
The discharge of the waste of fresh water, especially brine waste is caused, fresh water water resource mineralising and alkalization of soils are bound to cause.(Lee's handle
Edge waits high-salt wastewater to be formed and its processing technique progress [J] chemical industry is in progress, 2014,33 (2): 493-497)
Heat pump techniques are that the global energy to receive much attention in recent years uses technology, and core concept is a small amount of Gao Pin of consumption
Position energy, serves as porter with thermal energy, and the heat " pumping " of low-temperature heat source is arrived high-order heat source.Flow the refrigerant in heat pump system
It is to be formed by refrigeration cycle.Compressed refrigerant is transported under the driving effect of electric power and other energy, refrigerant is steaming
Absorption heat is within the condenser to complete heat exchange in hair device, the flow of refrigerant in throttling expansion valve control system.Various
In the heat pump system of type, the vapor compression heat pump pressure technology being driven by electricity is comparative maturity, and standardization level is high, volume
Small, high-efficient, performance stabilization is low with maintenance cost, and leader that is more with the obvious advantage than other heat pumps and rapidly becoming market (opens
Research [J] the modern industry economy and informationization of sword heat pump techniques application principle, 2015,88 (4): 9-20).
In recent years, spray technique is increasingly paid attention in the application study of field of seawater desalination, and being developing progressively is one
The independent desalination technology of class.Spray evaporation desalination technology is the desalination method based on low-temperature phase conversion process, unit scale flexibly,
Equipment investment is moderate, it is convenient to utilize Lowlevel thermal energy (such as solar energy, underground heat, factory's waste heat), therefore application potential is very big.
The principle of spray evaporation desalination is to pass through seawater in spray head penetrating vaporization chamber fog-like, while having air circulation in vaporization chamber；
Suspend drop volume very little in the gas flow, and for diameter generally within 100 μm, specific surface area is very big, be convenient for and surrounding air into
Row heat transfer, the moisture in seawater, which evaporates rapidly, becomes vapor, thus seawater is concentrated；After evaporation process terminates, water
Steam takes vaporization chamber out of by air stream, is then condensed into fresh water again and is recycled.Seawater in spray evaporation desalination process
Concentration rate is very high, and it is (Cheng Huaigang, high from Congjie [J] modern chemical industry, 2008,28 (6): 19) that salinity can even crystallize precipitation.
Method for treating water based on electromagnetic field effect is the novel water treatment technology just to grow up in recent years,
Low energy consumption for its degradation process, at low cost, easy to operate, without secondary pollution, is the technology of a great development prospect.In high frequency traveling wave
Under magnetic fields, in water negative ions by electromagnetic field Lorentz force effect and make contrary spiral circular motion, quite
In the identical circular electric current in a direction, a small circular electric current is acted on by magnetic field can be for the dipole moment (abbreviation magnetic moment) with it
It is bright.The direction of magnetic moment can also be deflected with the variation generating period in magnetic field, while positive and negative charge center of gravity can be with the variation week in magnetic field
The vibration of phase property.In addition,
Current-carrying coil is in non-homogeneous high-intensity magnetic field usually by rotating torque, translational force and the 3 kinds of power of tension for leading to deformation
Effect, the effect of these power are all to try hard to make to increase by the magnetic flux in roundlet current coil.Although there is ion warm-up movement
It hinders, but as external magnetic field is stronger, ion magnetic moment arranges more neat；With the movement in shape wave magnetic field, current-carrying coil is above-mentioned
Magnetic field is shifted under effect compared with strength.Since travelling-magnetic-field moves in one direction, therefore negative ions helical ring can be with magnetic
Moving direction and moved to a direction, so that a large amount of ion be enable to be brought together, play the role of removal of impurities (king
Eastern jasmine waits electromagnetic water treatment Research progress [J] oil field equipment, 2007,36 (1): 9-11).
Summary of the invention
The purpose of the present invention is intended to provide using cold source evaporation technique, i.e. high-efficiency electromagnetic reactor, heat pump, spray crystallization is anti-
Device is answered to be combined a kind of high-salt wastewater cold source evaporation zero discharge treatment and reuse for realizing high-salinity wastewater zero-emission processing and reuse
Method.
Main processing equipment according to the present invention is:
Raw water conditioning tank, inductive reaction device, heat pump, spray crystallization reactor.
The present invention the following steps are included:
1) high-salt wastewater enters raw water conditioning tank stabilizing water quantity and water quality after removal turbidity adjusting pH value to 7；
2) water outlet of raw water conditioning tank is subjected to magnetization treatment by inductive reaction device；
3) water outlet of high-efficiency electromagnetic reactor carries out temperature promotion by heat pump；
4) heat pump is discharged into spray crystallization reactor, spray crystallization reactor effluent reuse；
5) solid crystal residue periodically strikes off in spray crystallization reactor.
The water quality of the high-salt wastewater is as follows: pH value is 6.5~8, CODCrFor 500~3000mg/L, BOD5For 20~
100mg/L, TDS are 20000~35000mg/L, and fluoride is 10~30mg/L, 0.01~1mg/L of total cyanide, total arsenic 0.01
~3.5mg/L, 0.05~100mg/L of total mercury.
The pond body of raw water conditioning tank is preferably PE anti-corrosion material, presets pH adjusting agent throwing device in the water inlet of pond body,
For regulating water quality, water and pH value.
Graphite electrode plate built in high-efficiency electromagnetic reactor, connection power supply preferably select frequency modulation high-voltage ac power, and (frequency modulation is high
Model DMC-400 can be used in pressure AC power source, and output power is 500~1000W, and 0~10KV of output voltage AC is adjustable, defeated
25~50KHZ of frequency is adjustable out, 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, model 1/
4MEG, blowing firing angle is 45 degree, injection flow 0.5t/d, and manufacturer is this Bo Run fluid Science and Technology Ltd. of Suzhou)
Heat pump preferably with air source heat pump, (model ZKFRS-10,10~40 DEG C of temperature range, internal pipeline material
For titanium alloy, manufacturer is Guangzhou Keyu Energy Technology Co., Ltd)
Compared with the processing method of conventionally employed addition chemical agent technique, the present invention has following remarkable advantage and effect
Fruit:
1, the present invention carries out under normal temperature and pressure conditions, does not need addition chemical agent, a small amount of electric energy is only consumed, without secondary
Pollution, is greatly lowered its processing cost.
2, the present invention is run in normal temperature and pressure, and main equipment material is the conventional material such as PE, is closed without nickel-base alloy or titanium
The anti-corrosion materials such as gold, are greatly lowered cost of investment, have distinct economic.
3, the processing waste water time is short, high-efficient, processing equipment less investment, and occupied area is small.
4, the achievable high-salinity wastewater zero-emission processing of the present invention, realizes the not exhaust emission substance into environment, protecting ecology
Environment solves critical problem for high-salt wastewater processing.
Specific embodiment
Below with reference to embodiment, the invention will be further described:
Main processing equipment according to the present invention is:
Raw water conditioning tank, high-efficiency electromagnetic reactor, heat pump, spray crystallization reactor.Above-mentioned processing equipment can be according to correlation
It is required that choosing, in which:
The pond body of raw water conditioning tank is preferably PE anti-corrosion material, presets pH adjusting agent throwing device in the water inlet of pond body,
For regulating water quality water and pH value.
Graphite electrode plate built in high-efficiency electromagnetic reactor, connection power supply preferably select frequency modulation high-voltage ac power, and frequency modulation is high
AC power source model DMC-400 is pressed, output power is 500~1000W, and 0~10KV of output voltage AC 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, model 1/4MEG,
Blowing firing angle is 45 degree, injection flow 0.5t/d, and manufacturer is this Bo Run fluid Science and Technology Ltd. of Suzhou.
Heat pump is preferably with air source heat pump, model ZKFRS-10, and 10~40 DEG C of temperature range, internal pipeline material is
Titanium alloy, manufacturer are Guangzhou Keyu Energy Technology Co., Ltd.
The present invention the following steps are included:
1) high-salt wastewater enters raw water conditioning tank stabilizing water quantity and water quality after removal turbidity adjusting pH value to 7；
2) water outlet of raw water conditioning tank is subjected to magnetization treatment by high-efficiency electromagnetic reactor；
3) water outlet of high-efficiency electromagnetic reactor carries out temperature promotion by heat pump；
4) heat pump is discharged into spray crystallization reactor, spray crystallization reactor effluent reuse；
5) solid crystal residue periodically strikes off in spray crystallization reactor.
Embodiment 1
The processing of power plant desulfurization high-salt wastewater is carried out using cold source evaporator, water quality is as follows: pH value 6.5, CODCrFor
2250mg/L, chloride 20000mg/L, BOD5For 83.9mg/L, TDS 25000mg/L, fluoride 11.8mg/L, always
Cyanide 0.63mg/L, total arsenic 3.32mg/L, total mercury 0.05mg/L.Experimental result: wastewater zero discharge rate is after operation for 24 hours
99.9%, CODcr average removal rate 99.9%, stable equipment operation.
Embodiment 2
The processing of reverse osmosis concentration high-salt wastewater is carried out using cold source evaporator, water quality is as follows: pH value 7.2, CODCrFor
862mg/L, BOD5For 33.8mg/L, TDS 35000mg/L, chloride 17500mg/L, fluoride 22.2mg/L, total cyanogen
Compound 0.06mg/L, total arsenic 0.13mg/L, total mercury 0.09mg/L.Experimental result: wastewater zero discharge rate is after operation for 24 hours
99.8%, CODcr average removal rate 99.9%, stable equipment operation.
Embodiment 3
The processing of chemical industry high-salt wastewater is carried out using cold source evaporator, water quality is as follows: pH value 8.0, CODCrFor 564.6mg/
L, BOD5For 42.3mg/L, TDS 20600mgL, copper ion 29600mg/L, fluoride 12.8mg/L, total cyanide
0.92mg/L, total arsenic 0.87mg/L, total mercury 97.1mg/L.Experimental result: the average removal rate of SS is 99.3% after operation for 24 hours,
CODcr average removal rate 98.9%, stable equipment operation.
Claims (8)
1. a kind of high-salt wastewater cold source evaporation zero discharge treatment and the method for reuse, it is characterised in that the following steps are included:
1) high-salt wastewater enters raw water conditioning tank stabilizing water quantity and water quality after removal turbidity adjusting pH value to 7；
2) water outlet of raw water conditioning tank is subjected to magnetization treatment by inductive reaction device；
3) water outlet of inductive reaction device carries out temperature promotion by heat pump；
4) heat pump is discharged into spray crystallization reactor, spray crystallization reactor effluent reuse；
5) solid crystal residue periodically strikes off in spray crystallization reactor.
2. a kind of high-salt wastewater cold source evaporation zero discharge treatment and the method for reuse as described in claim 1, it is characterised in that institute
The water quality for stating high-salt wastewater is as follows: pH value is 6.5~8, CODCrFor 500~3000mg/L, BOD5 is 20~100mg/L, and TDS is
20000~35000mg/L, fluoride be 10~30mg/L, total cyanide 0.01~1mg/L, total 0.01~3.5mg/L of arsenic, always
0.05~100mg/L of mercury.
3. a kind of high-salt wastewater cold source evaporation zero discharge treatment and the method for reuse as described in claim 1, it is characterised in that former
The pond body of water conditioning tank is PE anti-corrosion material, presets pH adjusting agent throwing device in the water inlet of pond body, is used for regulating water quality, water
Amount and pH value.
4. a kind of high-salt wastewater cold source evaporation zero discharge treatment and the method for reuse as described in claim 1, it is characterised in that institute
Graphite electrode plate built in inductive reaction device is stated, connection power supply selects frequency modulation high-voltage ac power.
5. a kind of high-salt wastewater cold source evaporation zero discharge treatment and the method for reuse as claimed in claim 4, it is characterised in that institute
Stating frequency modulation high-voltage ac power uses output power for 500~1000W, and 0~10KV of output voltage AC is adjustable, output frequency 25
The adjustable frequency modulation high-voltage ac power of~50KHZ.
6. a kind of high-salt wastewater cold source evaporation zero discharge treatment and the method for reuse as described in claim 1, it is characterised in that institute
It states spray crystallization reactor nozzle and selects fan nozzle.
7. a kind of high-salt wastewater cold source evaporation zero discharge treatment and the method for reuse as claimed in claim 6, it is characterised in that institute
The material for stating fan nozzle is diamondite inlay, and blowing firing angle is 45 degree, injection flow 0.5t/d.
8. a kind of high-salt wastewater cold source evaporation zero discharge treatment and the method for reuse as described in claim 1, it is characterised in that institute
Heat pump is stated using air source heat pump.
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Families Citing this family (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 |
| 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 |
| CN108793571B (en) * | 2018-06-07 | 2021-02-12 | 安徽同速科技有限公司 | Enhanced desalination high-salinity wastewater treatment 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 |
| 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 |
| CN113121062B (en) * | 2019-12-31 | 2022-07-12 | 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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2016
- 2016-06-16 CN CN201610431670.8A patent/CN105923884B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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