CN107151072A - A kind of handling process of desulfurization wastewater - Google Patents
A kind of handling process of desulfurization wastewater Download PDFInfo
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- CN107151072A CN107151072A CN201610118473.0A CN201610118473A CN107151072A CN 107151072 A CN107151072 A CN 107151072A CN 201610118473 A CN201610118473 A CN 201610118473A CN 107151072 A CN107151072 A CN 107151072A
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
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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
- C02F1/44—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
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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Abstract
The invention discloses a kind of handling process of desulfurization wastewater, saltoutd treatment process including desulfurization wastewater pretreatment process, desulfurization wastewater film concentration process, desulfurization wastewater, the desulfurization wastewater pretreatment process includes two-stage electrochemical treatments process and two-stage sofening treatment process；Film concentration section is designed to two-stage film process, including rolling RO devices and network pipe type STRO devices；Processing section of saltouing uses MVR evaporator combination spray evaporators, and whole technological process is without any organic medicament.
Description
Technical field
The invention belongs to environmental technology field, and in particular to a kind of desulfurization wastewater Zero-discharge treating process.
Background technology
Apply at home and development has the history of more than ten years by thermal power plant for Wet Flue Gas Desulfurization Technology, day
Become ripe and stably, matched waste water treatment process still continues to use three when flue gas desulfurization technique is introduced at present
Header conventional processes.Equipment in the process of running, because of situations such as exist corrosion, wear and blocking,
System failure rate is high compared with for power plant's other systems, and desulfurization wastewater system shutdown, desulfurization wastewater steals row
To grey field situation generally existing.Now with the increasingly strict of national requirements for environmental protection, the increasingly tight of measure of enforcing the law
Strict, power industry is declaring the wind of the transformation of one desulfurization wastewater treatment system, and Ye You power plant begin attempt to
Zero discharge treatment technology.
External Zero-discharge treating process and equipment are due to system complex, and operating cost is high, and power plant can not bear height
Operating cost.Positive infiltration handling process and equipment carry out zero-emission reforming processing to desulfurization wastewater in the prior art,
Concrete technology flow process is：Raw wastewater softened by lime-soda, efficiently clarify and filter after, using milipore filter,
High pressure reverse osmosis membrane technology carries out pre-concentration, can be by raw water pre-concentration to the ppm of salt content 5-7 ten thousand, then using just
Infiltration handling process is further concentrated into the ppm of salt content 20-25 ten thousand, and dry crystallization is obtained by crystallizer
Salt.Because pretreatment system technique is incomplete, there are scale problems in the system, and system water inlet chlorion contains
Amount greatly differs from each other in 3000ppm with the desulfurization wastewater chloride ion content of custom requirements in 10000-20000ppm,
Therefore the handling process system equipment does not possess the meaning of popularization still also.
The content of the invention
Instant invention overcomes of the prior art not enough useless there is provided a kind of desulfurization of suitable industrialization with low cost
Water treatment technology.
The invention provides a kind of handling process of desulfurization wastewater, comprise the following steps：
1) desulfurization wastewater pretreatment process：The desulfurization wastewater pretreatment process includes two-stage electrochemical treatments
Process and two-stage sofening treatment process；Desulfurization wastewater is entered by perpendicular stream buffer unit to be carried out just in three-dimensional reactor
Level electrochemical treatments remove the acidic materials in waste water and the colloidal substance in waste water are lost because of charge effect
It is steady to complete one-level electrochemical treatments；Waste water through one-level electrochemical treatments, which enters two grades of electrochemical reactors, to be occurred
Electrochemical reaction, two grades of electrochemical treatments make the chlorion in waste water to escape in gaseous form, in waste water
Organic matter anode surface be oxidized decompose；Waste water through two grades of electrochemical reactor processing is through settler
Into intermediate water tank and middle water pump, tubular type micro-filtration is squeezed into by water pump and filtered, obtain primary after filtering
Softened water, the primary softening water hardness can be reduced to below 50ppm；The primary softened water flows through primary soft water
Case, nanofiltration feed pump, are then filtered through active carbon filter, and the filtrate after activated carbon filtering is through nanofiltration high pressure
Pump enters nanofiltration device, and the concentrated water of nanofiltration device retention is back in tilted plate separator, handled through nanofiltration device
The waste water not retained afterwards enters softened water tank；
2) desulfurization wastewater film concentration process：The waste water not retained after being handled through nanofiltration device enters soft water
Enter rolling RO devices through RO feed pumps, RO high-pressure pumps after case, the concentrated water handled through rolling RO devices is through increasing
Press pump enters STRO devices, completes concentration process；
3) desulfurization wastewater is saltoutd treatment process：Concentrated water after the processing of STRO devices is evaporated through MVR vaporising devices,
Dense salt discarded object landfill disposal after evaporation, realizes sulfur-containing waste water zero-emission.
The present invention intends flocculating to desulfurization wastewater, clarified and reduced COD processing using two-stage electrochemical method,
The time required to shortening desulfurization wastewater suspension and colloid processing, and equipment occupation of land is reduced, be follow-up membrane process craft
Create favorable conditions.
Preliminarily softened (is carried out, using nanofiltration work using soda ash/tube type filter membrance filtering using two-stage softening process
Skill carries out depth softening), the waste water hardness into RO film devices is less than 2.5mg/l, so that whole zero
Discharge technology system energy long time stability is run.
Using two-stage embrane method concentration technique, concentration decrement treatment is carried out to desulfurization wastewater, raising system is set
Standby automatization level, reduces the treatment scale and operating cost of vapo(u)rization system.
Using mechanical compress evaporation process combination spray evaporation technique, the desulfurization wastewater after concentration is evaporated
Processing, forms the final solid waste of Zero discharging system.
This technique uses advanced Internet of Things, cloud computing technology, with reference to electric parameter sensor to system electrical
Equipment, the running status of control valve carry out data acquisition, are then sent to cloud meter by remote communication module
Calculate platform and realize remote monitoring, and combine on-line analysis instrument, to system water, water level, water quality, power consumption,
Real-time production data information as medicine consumption, equipment state is sent to cloud computing platform by remote communication module,
It is collected, integrated, analyzed and is handled by cloud computing platform, realizes the long-range real-time of running situation
Supervision, fault diagnosis and equipment control, so as to grasp machine operation and predict and pinpoint the problems in time,
Management is set more to standardize, become more meticulous.
Whole flow process can be divided into three process sections, i.e. pretreatment section, film concentration section and processing section of saltouing.
Pretreatment section is included from perpendicular stream buffer unit up to the whole technological process of softened water tank, and its major function is to remove
Firmly, turbid, reduction organic matter, chlorion and sulfate ion concentration, including two-stage electrochemical treatments, two are gone
Level sofening treatment.
Waste water from desulfuration absorbing tower, due to repeatedly being circulated in absorption tower, wherein containing a large amount of colloid substances
Matter, it is difficult to by gravity natural subsidence, and add chemical agent and then add waste water salt content, after adding
Continuous desalinating process intractability.Present invention process uses two-stage electrochemical treatments, can shorten in desulfurization wastewater and hang
The float matter sedimentation time.Desulfurization wastewater carries out primary electrochemical treatments first in three-dimensional reactor, on the one hand
The acidic materials in waste water can be consumed, on the other hand cause the colloidal substance in waste water because of electricity because micro cell reacts
Lotus acts on and unstability.Waste water occurs in the electrode surface of two grades of electrochemical reactors in electrochemical reaction, waste water
Chlorion will escape in gaseous form, the organic matter in waste water anode surface be oxidized decompose.
Liquid caustic soda is added into the production water of electrochemical reactor, pH value of waste water is improved.In the basic conditions, waste water
In insoluble type suspension enter inclined plate sedimentation device, obtain preliminary sedimentation, the waste water after sedimentation is in soda ash
Effect is lower to produce precipitation of calcium carbonate, is filtered by tube type filter membrance.This soda ash/tube type filter membrance filtering
And preliminarily softened, the hardness of desulfurization wastewater can be enable to be greatly lowered, the tube type filter membrance production water hardness can drop
As little as below 50ppm.
Tube type filter membrance production water enters nanofiltration device by high-pressure pump, because NF membrane is gone to dianion
Except rate is up to 95%, according to elrectroneutrality pcharge-neutrality principle, the cationic charge of nanofiltration production water is also accordingly reduced, so that
Obtain waste water and obtained depth softening, the waste water hardness number after depth softening can be reduced to below 2.5mg/l, and normal
The hardness of water also can only achieve 3-4mg/l after the lime of rule/soda ash softening process processing.Patent design of the present invention
This soda ash/micro-filtration technique by the way of gradually progressive, makes tentatively except hard and nanofiltration technique depth is except firmly
Except hardness technique is more reliable and more stable, and the production water of tube type filter membrance meets nanofiltration device again in terms of turbidity
Water inlet is to suspension requirement.
Nanofiltration device retention concentrate recirculation to tilted plate separator intake, due to the sulfate radical in nanofiltration concentrated water from
Sub- concentration is increased substantially, and the calcium ion in desulfurization wastewater with entering inclined plate sedimentation device reacts, and can be formed
Calcium sulfate precipitation, is settled removal in inclined plate sedimentation device.
Because the wastewater oxidation after two-stage electrochemical treatments is higher, before waste water enters nano filter membrance device,
Reduced by activated carbon, so that it is guaranteed that the safe and stable operation of membrane component.
After pretreatment, into the waste water of RO film devices, hardness is smaller than 2.5mg/l, and turbidity is less than
0.1NTU, COD are less than 10mg/L, and chlorion clearance is more than 30%, and sulfate ion clearance is more than
95%.
Film concentration section is designed to two-stage film process, including rolling RO devices and network pipe type STRO devices.
Processing section of saltouing uses MVR evaporator combination spray evaporators, and whole technological process has without any
Machine medicament.
Brief Introduction on Equipment of the present invention is as follows：
1) stream buffer unit is erected
System first section sets perpendicular stream buffer unit, preliminary sedimentation is carried out to desulfurization wastewater, to reduce subsequent technique
Section Treatment of Sludge load, may be designed to reinforced concrete structure, and this device application is universal, technology maturation.
2) three-dimensional reactor
Three-dimensional inside reactor is provided with catalytic electrolysis filler, and one-level electrochemical treatments are carried out to desulfurization wastewater,
Part acidic materials in waste water can be eliminated simultaneously, are intensive treatment effect, the equipment is provided with air stirring dress
Put.Three-dimensional reactor retention time of sewage is not less than 2 hours, and air stirrer institute air demand is according to air water
Than 15：1 is designed.In order to promote waste water fully to be contacted with three-dimensional inside reactor filler, the present apparatus is set
An internal circulation pump is equipped with, quantity of circulating water is 2 times of amount of inlet water.
3) electrochemical reactor
Direct current is passed through to multigroup pole plate in parallel, electric field is produced between positive and negative pole plate, makes pending
Water flows into the space of pole plate.Electrochemical reaction can occur for the pole plate being now powered, and flocculation reaction occurs in water,
In the process, while occurring electric floating, redox etc., other are acted on, and the result of these effects makes water
Middle dissolubility, colloid and suspended pollutant are effectively converted and removed.In order to promote waste water and electrochemistry
Reactor internal polar plate is fully contacted, and the present apparatus is provided with an internal circulation pump, quantity of circulating water and amount of inlet water phase
Together.
4) tubular type micro-filtration
Inclined plate sedimentation device water outlet adds soda ash, and the calcium carbonate microscopic precipitate thing of generation passes through tubular type micro-filtration
Separated, hardness is greatly lowered in production water, and micro-filtration concentrated water cross-flow is back to inclined plate sedimentation device
Water inlet, this soda ash+tube type filter membrance separating technology is widely used in terms of reduction hardness and turbidity.Pipe
Decline waste water flow velocity up to 4.6m/s in filter membrane, so that scale formation is not present on film surface.
5) nanofiltration device
Further divalent ion is separated from the water, depth emollescence is played, the dense draining of nanofiltration device is returned
Inclined-plate clarifying basin water inlet end is back to, can be with the calcium ion formation sediment in desulfurization wastewater, NF membrane is to sulfuric acid
The retention efficiency high of radical ion is up to more than 95%, so as to can also retain bivalent cation, reaches further removal
The effect of hardness.
6) rolling RO devices
Initial concentration separation membrane component is used as using desalinization membrane component.
7) network pipe type RO devices (STRO)
Concentrating and separating is further carried out using STRO devices to the dense draining of desalinization membrane component.Relative to volume
Formula RO membrane components, network pipe type RO membrane components use the parallel water inlet flow channel in 34 Mills, to reduce water inlet as far as possible
With the possibility of the high scaling tendency in film surface.The water inlet flowing of design, its geometrical property ensures low pressure in putamina
Drop；STRO membrane components can tolerate entering for 250mg/l TSS high solids and 30000ppm COD Organic Pollutions
Water；Relative to DTRO membrane components, than 1 DTRO membrane area of membrane area of 1 STRO membrane component is high
Go out 3 times, so that system cost is accordingly much lower.
8) mechanical compress evaporator
Concentration is evaporated to the dense draining of STRO devices using MVR devices, MVR devices steam compared with single-action
Send out for device, multi-effect evaporator, its energy consumption is relatively low, and occupation area of equipment is smaller, with stronger market
Competitiveness.
Because the dense discharge pressures of STRO are high, nozzle is provided with MVR flash tanks, is made by pressure release
Into the vaporific small water droplet of the dense draining generation of film of flash tank, enhanced water evaporation effect, the water smoke of generation is in machinery pressure
Flash tank is left under the swabbing action of contracting machine, the preliminary steaming of strong brine can be realized under conditions of without heating
Send out concentrating function.
Acted on by mechanical compress, the low temperature and low pressure steam extracted out from flash tank changes into elevated pressures higher temperatures
The steam of degree, heat exchange, the higher temperature elevated pressures compressed are carried out in heating chamber and the concentrate of circulation
Indirect steam be concentrated liquid condensing become condensed water discharge, while the indirect steam after concentrate is compressed adds
Heat continues to evaporate.
Compared with prior art the invention has the advantages that：
1st, COD processing is flocculated, clarified and reduced to desulfurization wastewater using two-stage electrochemical method, contracted
The time required to short desulfurization wastewater suspension and colloid clarifying treatment, and equipment occupation of land is reduced, be follow-up embrane method work
Skill creates favorable conditions.
2nd, conventional ultrafiltration system is replaced using tube type filter membrance, concentration of suspension is provided for follow-up counter-infiltration system
Extremely low water inlet, with reference to adding for soda ash and liquid caustic soda, can effectively reduce hardness in waste water, be that nanofiltration device is deep
Degree removes hardness and COD creates condition.
3rd, the dense draining of nanofiltration system of design is back to micro-filtration membrane treatment process front end, improves divalence in waste water
The concentration of anion, so as to improve the efficiency that calcium sulfate precipitation is generated with the calcium binding in waste water, has
Effect reduction sulfate radical in waste water concentration.
4th, system design two-stage electrochemical reaction appts, to prevent the organic fouling of tube type filter membrance from having created
Sharp condition；Active carbon filter is provided with before nanofiltration device, can effectively prevent organic film to be oxidized degraded.
5th, because whole processing technology is without organic medicament, and whole processing technology can effectively reduce waste water
COD, therefore MVR vaporising devices need not add defoamer.
6th, the dense discharge pressure of STRO devices is high in this technique, to make full use of this potential energy,
Nozzle is provided with MVR flash tanks, discharging dense be drained into after flash tank by pressure produces vaporific small water droplet,
Water smoke leaves flash tank under the swabbing action of mechanical compressor, can be realized under conditions of without heating dense
The preliminary evaporation and concentration of salt solution.
7th, this technique uses advanced technology of Internet of things, to system electrical equipment, the running status of control valve
Remote monitoring is carried out, and combines on-line analysis instrument, remote diagnosis and control are carried out to running situation,
So as to grasp machine operation and carry out fault diagnosis in time.
Brief description of the drawings
Fig. 1 is present invention process flow chart
Embodiment
To make the object, technical solutions and advantages of the present invention of greater clarity, with reference to specific embodiment party
Formula, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and do not really want
Limit the scope of the present invention.
Embodiment
Desulfurization wastewater passes through the perpendicular stream buffer unit of reinforced concrete structure, and preliminary sedimentation is carried out to desulfurization wastewater,
To reduce subsequent technique section Treatment of Sludge load, then one-level electrochemical treatments are carried out through three-dimensional reactor；Three
Dimension inside reactor is provided with catalytic electrolysis filler, one-level electrochemical treatments is carried out to desulfurization wastewater, while can
Part acidic materials in waste water are eliminated, are intensive treatment effect, the equipment is provided with air stirrer.Three
Tie up reactor retention time of sewage to be not less than 2 hours, air stirrer institute's air demand is according to gas-water ratio 15：1
It is designed.In order to promote waste water fully to be contacted with three-dimensional inside reactor filler, the present apparatus is provided with one
Internal circulation pump, quantity of circulating water is 2 times of amount of inlet water.
The waste water for flowing through three-dimensional reactor enters electrochemical reactor, and direct current is passed through to multigroup pole plate in parallel,
Electric field is produced between positive and negative pole plate, pending water is flowed into the space of pole plate.The pole plate being now powered
Can occur electrochemical reaction, flocculation reaction occurs in water, in the process, while occurring electric floating, oxygen
Changing reduction etc., other are acted on, the result of these effects, obtain dissolubility in water, colloid and suspended pollutant
To effective conversion and removal.In order to promote waste water fully to be contacted with electrochemical reactor internal polar plate, the present apparatus is set
An internal circulation pump is equipped with, quantity of circulating water is identical with amount of inlet water.
The waste water for flowing through electrochemical reactor enters inclined plate sedimentation device, and inclined plate sedimentation device water outlet adds soda ash,
The calcium carbonate microscopic precipitate thing of generation is separated by tubular type micro-filtration, and hardness is able to significantly in production water
Reduction, micro-filtration concentrated water cross-flow is back to inclined plate sedimentation device water inlet, this soda ash+tube type filter membrance separation work
Skill is widely used in terms of reduction hardness and turbidity.Waste water flow velocity is up to 4.6m/s in tube type filter membrance, from
And scale formation is not present on film surface.
The waste water filtered through tubular type micro-filtration is handled through primary hose, nanofiltration feed pump by activated carbon,
Then flow through cartridge filter, nanofiltration high-pressure pump and enter nanofiltration device, further divide divalent ion from water
From, depth emollescence is played, the dense draining of nanofiltration device is back to inclined-plate clarifying basin water inlet end, can be with taking off
In sulphur waste water calcium ion formation sediment, NF membrane to the retention efficiency high of sulfate ion up to more than 95%,
So as to can also retain bivalent cation, the effect for further removing hardness is reached.
The waste water filtered by nanofiltration device enters rolling RO by demineralized water tank, RO feed pumps, RO high-pressure pumps
Device, rolling RO devices use desalinization membrane component as initial concentration separation membrane component, through rolling
The concentrated water of RO devices processing enters network pipe type RO devices (STRO) through booster pump.
The waste water handled through STRO devices enters mechanical compress evaporator (MVR devices) to STRO devices
Dense draining be evaporated concentration, MVR devices are compared with single effect evaporator, for multi-effect evaporator, its energy consumption compared with
It is low, and occupation area of equipment is smaller, with the stronger market competitiveness.Because the dense discharge pressures of STRO are high,
Nozzle is provided with MVR flash tanks, being discharged by pressure makes the dense draining generation of film into flash tank vaporific
Small water droplet, enhanced water evaporation effect, the water smoke of generation leaves flash tank under the swabbing action of mechanical compressor,
The preliminary evaporation and concentration function of strong brine can be realized under conditions of without heating.Acted on by mechanical compress,
The low temperature and low pressure steam extracted out from flash tank changes into the steam of elevated pressures higher temperature, in heating chamber with following
The concentrate of ring carries out heat exchange, and the indirect steam for the higher temperature elevated pressures compressed is concentrated liquid condensing
Become condensed water discharge, while the Secondary-steam heating after concentrate is compressed continues to evaporate.Evaporated through MVR
Dense salt discarded object landfill disposal after device evaporation, realizes sulfur-containing waste water zero-emission.
This technique also uses advanced Internet of Things, cloud computing technology, with reference to electric parameter sensor to system electricity
Gas equipment, the running status of control valve carry out data acquisition, are then sent to cloud by remote communication module
Calculating platform realizes remote monitoring, and combines on-line analysis instrument, to system water, water level, water quality, electricity
Consumption, medicine consumption, real-time production data information as equipment state are sent to cloud computing by remote communication module
Platform, is collected by cloud computing platform, integrated, analyzed and handled, and realizes the remote of running situation
Journey real-time oversight, fault diagnosis and equipment control, so as to grasp machine operation and predict and send out in time
Existing problem, makes management more standardize, become more meticulous.
Although embodiments of the present invention are described in detail, it should be understood that, without departing from this
In the case of the spirit and scope of invention, embodiments of the present invention can be made various changes, replace and
Change.
Claims (4)
1. a kind of handling process of desulfurization wastewater, including following treatment process：
1) desulfurization wastewater pretreatment process：The desulfurization wastewater pretreatment process includes two-stage electrochemical treatments process and two-stage sofening treatment process；Desulfurization wastewater is entered by perpendicular stream buffer unit carries out primary electrochemical treatments in three-dimensional reactor, remove the acidic materials in waste water and make it that unstability completes one-level electrochemical treatments to the colloidal substance in waste water because of charge effect；Waste water through one-level electrochemical treatments enters two grades of electrochemical reactors and occurs electrochemical reaction, two grades of electrochemical treatments make the chlorion in waste water to escape in gaseous form, organic matter in waste water is oxidized in anode surface to be decomposed, waste water through two grades of electrochemical reactor processing enters intermediate water tank and middle water pump through settler, tubular type micro-filtration is squeezed into by water pump to be filtered, primary softened water is obtained after filtering, the primary softening water hardness can be reduced to below 50ppm；The primary softened water flows through primary softened water tank, nanofiltration feed pump, then filtered through active carbon filter, filtrate after activated carbon filtering enters nanofiltration device through nanofiltration high-pressure pump, and the concentrated water of nanofiltration device retention is back in tilted plate separator, and water is produced after being handled through nanofiltration device and enters softened water tank；
2) desulfurization wastewater film concentration process：Production water after being handled through nanofiltration device enters after softened water tank through RO feed pumps, RO high-pressure pumps into rolling RO devices, and the concentrated water handled through rolling RO devices enters STRO devices through booster pump, completes concentration process；
3) desulfurization wastewater is saltoutd treatment process：Concentrated water after the processing of STRO devices is evaporated through MVR vaporising devices, and the dense salt discarded object landfill disposal after evaporation realizes sulfur-containing waste water zero-emission.
2. a kind of handling process of desulfurization wastewater according to claim 1, it is characterised in that：The three-dimensional reactor retention time of sewage is more than 2 hours, there is an internal circulation pump in three-dimensional reactor, and quantity of circulating water is 2 times of amount of inlet water.
3. a kind of handling process of desulfurization wastewater according to claim 1, it is characterised in that：There is an internal circulation pump in the electrochemical reactor, quantity of circulating water is that amount of inlet water is identical.
4. a kind of handling process of desulfurization wastewater according to claim 1, it is characterised in that：Herein in connection with electric parameter sensor to system electrical equipment, the running status of control valve carries out data acquisition, then cloud computing platform is sent to by remote communication module and realizes remote monitoring, and combine on-line analysis instrument, to system water, water level, water quality, power consumption, medicine consumes, real-time production data information is sent to cloud computing platform by remote communication module as equipment state, it is collected by cloud computing platform, integrate, analysis and processing, realize the long-range real-time oversight of running situation, fault diagnosis and equipment control, so as to grasp machine operation and predict and pinpoint the problems in time.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109694119A (en) * | 2018-04-26 | 2019-04-30 | 中电华创电力技术研究有限公司 | A method of desulfurization wastewater is handled using modified activated carbon granule electrode |
| CN110342713A (en) * | 2019-07-03 | 2019-10-18 | 西安格瑞电力科技有限公司 | A kind of desulfurization wastewater is from reuse and Zero discharging system |
| CN111268753A (en) * | 2020-02-14 | 2020-06-12 | 北京光耀环境工程有限公司 | Desulfurization wastewater treatment system and method |
| CN113754140A (en) * | 2021-06-03 | 2021-12-07 | 上海大学 | Comprehensive chemical wastewater treatment device and treatment method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05220334A (en) * | 1992-02-13 | 1993-08-31 | Mitsubishi Heavy Ind Ltd | Waste liquid treatment and equipment for flue gas desulfurizer |
| WO2009039655A1 (en) * | 2007-09-26 | 2009-04-02 | Bioteq Environmental Technologies Inc. | Selective sulphate removal by exclusive anion exchange from hard water waste streams |
| CN103979729A (en) * | 2014-05-30 | 2014-08-13 | 西安西热水务环保有限公司 | Desulfurization waste water recycling and zero discharge system and method |
| CN204310901U (en) * | 2014-12-18 | 2015-05-06 | 武汉努创环境工程技术有限公司 | A kind of desulfurization wastewater electrochemical treatment system |
| CN105174580A (en) * | 2015-08-25 | 2015-12-23 | 天津市华通寰昊水务科技有限公司 | Desulphurization waste-water zero discharge processing system and technology |
-
2016
- 2016-03-02 CN CN201610118473.0A patent/CN107151072B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05220334A (en) * | 1992-02-13 | 1993-08-31 | Mitsubishi Heavy Ind Ltd | Waste liquid treatment and equipment for flue gas desulfurizer |
| WO2009039655A1 (en) * | 2007-09-26 | 2009-04-02 | Bioteq Environmental Technologies Inc. | Selective sulphate removal by exclusive anion exchange from hard water waste streams |
| CN103979729A (en) * | 2014-05-30 | 2014-08-13 | 西安西热水务环保有限公司 | Desulfurization waste water recycling and zero discharge system and method |
| CN204310901U (en) * | 2014-12-18 | 2015-05-06 | 武汉努创环境工程技术有限公司 | A kind of desulfurization wastewater electrochemical treatment system |
| CN105174580A (en) * | 2015-08-25 | 2015-12-23 | 天津市华通寰昊水务科技有限公司 | Desulphurization waste-water zero discharge processing system and technology |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109694119A (en) * | 2018-04-26 | 2019-04-30 | 中电华创电力技术研究有限公司 | A method of desulfurization wastewater is handled using modified activated carbon granule electrode |
| CN110342713A (en) * | 2019-07-03 | 2019-10-18 | 西安格瑞电力科技有限公司 | A kind of desulfurization wastewater is from reuse and Zero discharging system |
| CN110342713B (en) * | 2019-07-03 | 2024-02-20 | 西安格瑞电力科技有限公司 | Desulfurization waste water is from retrieval and utilization and zero release system |
| CN111268753A (en) * | 2020-02-14 | 2020-06-12 | 北京光耀环境工程有限公司 | Desulfurization wastewater treatment system and method |
| CN113754140A (en) * | 2021-06-03 | 2021-12-07 | 上海大学 | Comprehensive chemical wastewater treatment device and treatment method |
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