CN109368867A - The utilization of resources system and method for high-salt wastewater after a kind of washing of flying dust - Google Patents
The utilization of resources system and method for high-salt wastewater after a kind of washing of flying dust Download PDFInfo
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- CN109368867A CN109368867A CN201811429172.5A CN201811429172A CN109368867A CN 109368867 A CN109368867 A CN 109368867A CN 201811429172 A CN201811429172 A CN 201811429172A CN 109368867 A CN109368867 A CN 109368867A
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- 239000000428 dust Substances 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000005406 washing Methods 0.000 title claims abstract description 34
- 239000002351 wastewater Substances 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000003756 stirring Methods 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 238000001179 sorption measurement Methods 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 12
- 239000006210 lotion Substances 0.000 claims abstract description 10
- 238000011010 flushing procedure Methods 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims abstract description 6
- 239000002253 acid Substances 0.000 claims description 22
- 239000000126 substance Substances 0.000 claims description 11
- 238000005086 pumping Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000005416 organic matter Substances 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 3
- 150000003839 salts Chemical class 0.000 description 9
- 150000002500 ions Chemical class 0.000 description 8
- 229910001385 heavy metal Inorganic materials 0.000 description 6
- 239000004568 cement Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000010881 fly ash Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical group [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001471 micro-filtration Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000003019 stabilising effect Effects 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- -1 Chlorine ions Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000010882 bottom ash Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006298 dechlorination reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000012633 leachable Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
-
- 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
-
- 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
- C02F2001/007—Processes including a sedimentation step
Abstract
The invention discloses a kind of utilization of resources system and method for high-salt wastewater after washing for flying dust, which includes: the decalcification reactor for carrying out decalcification stir process to flying dust water lotion；For receiving the intermediate pool from decalcification reactor outflow solution；For receiving the first tubular type microstrainer and the second tubular type microstrainer from intermediate pool outflow solution；For receiving the clear water reserviors from the first tubular type microstrainer and the second tubular type microstrainer outflow solution；Activated carbon adsorption device for receiving to flow out solution from clear water reserviors；MVR feed cistern for receiving to flow out solution from activated carbon adsorption device；And for receiving the inclined-plate clarifying basin that molten counter-flushing liquid is discharged from the first tubular type microstrainer and the second tubular type microstrainer.Utilization of resources system of the present invention, have the function of except hardness, except suspended solid, except organic matter, adjust pH value, effluent quality is preferable after processing, and long run supply MVR equipment is not using easily causing MVR stop cleaning, and the level of integrated system is high.
Description
Technical field
The present invention relates to the resource benefits of high-salt wastewater after garbage flying ash processing technology field more particularly to a kind of washing of flying dust
Use system and method.
Background technique
Incineration of refuse flyash be in municipal consumer waste incineration disposal process the trapping object of flue gas purification system and flue and
The bottom ash of chimney bottom sedimentation.Containing pollutants such as heavy metal, benzene homologues, dioxin in incineration of refuse flyash, arranged in China
For hazardous waste HW18.
Enter landfill yard after solidification and stabilization, is the flying dust processing mode of international mainstream, refers to and pass through physical-chemical method
Harmful substance is fixed to or is included in one of inertia curing substrate innocent treatment procedure.The purpose is to make the dirt in waste
Dye component is presented chemical inertness or is contained, and keeps it safer during transport is with disposition.Stabilize landfill
Disposal options can occupy a large amount of soil.Under the action of after Closure of landfill site through going through nature, harmful substance, which has, gradually to be discharged
A possibility that.Simultaneously industrialization promotion is significant and gesture exists for the flying dust processing technique and technique for further developing stability and high efficiency
It must go.
Cement kiln synergic processing incineration of refuse flyash is to be added to manufacture of cement pretreated flying dust is passed through as raw material
In the process, instead of part of cement raw material while, the organic pollutants such as the dioxin being enriched in flying dust have been effectively removed, have been realized
The disposal of resources of flying dust.Due to containing a large amount of Cl-and heavy metal element in flying dust, in order to avoid to manufacture of cement work
Skill impacts, it is necessary to pre-process to it.Largely studies have shown that the method using water-washing pre-treatment can effectively be gone
Except the Cl-in flying dust, avoid causing system balling and putty etc. because Cl- is excessively high.
What Beijing Building Materials Science Research Institute Co had invented that a kind of garbage flying ash washes buck recycles work
Skill (CN102020388A), the technique carry out suspended matter separation, removing heavy metals ion, deliming magnesium ion, filtering, mechanical compression and
Multiple-effect evaporation step, the innovative point of technique is the removal of suspended matter, heavy metal ion, calcium ions and magnesium ions, but cooperates with to cement kiln
Dispose flying dust always influence factor --- the removing process of chloride ion does not have further investigated and research.
A kind of water washing pretreatment method for making fly-ash from incineration harmless (CN1947872A) has been invented by Shanghai University, this method be
Water washing flying dust under normal temperature and pressure removes a large amount of leachable anion and part heavy metal ion in flying dust.Make in its flying dust
Chlorine ions percent concentration drops to 1% hereinafter, simultaneously part washes out heavy metal, which is directed to specifically operate
Method and operating parameter, but corresponding lectotype selection is not provided, it is still necessary to suitable equipment completing technology routes in engineer application
Industrial application.
Guo Run Environmental Protection Technology Co., Ltd of BeiJing ZhongKe discloses a kind of washing melded system of incineration of refuse flyash
(CN104843923A), the filtrate (liquid of first-stage centrifugal machine B successively with the first intermediate pool, the first reaction tank, the second reaction tank,
Decalcification transfer tank, the connection of decalcification centrifuge, the cake outlet of decalcification centrifuge are connected to second level filtrate tank, the filter of decalcification centrifuge
Liquid outlet is successively with the second intermediate pool, water stabilization reaction tank, level-one stable regulation pond, two-stage stabilising conditioning tank, filtering
System, PH conditioning tank, stablize pond, MVR evaporator, clear water reserviors connection, alkali liquor storage tank respectively with the first intermediate pool, water stabilization
Reaction tank connection, level-one, two-stage stabilising conditioning tank sludge outlet be connected to respectively with mud reservoir, mud reservoir is by the road with one
Grade filtrate tank connection, the technical essential are to connect retouch in detail with structure with the equipment in softening process for flying dust washing
It states, makes flying dust water-washing process that there is practical operability, but the implementation method of washing dechlorination effect, operating parameter are not said
It is bright.
To sum up, the existing generally existing following problems of flying dust washing process: 1. is excessive using centrifuge, the separation to centrifuge
Ability does not make full use of；2. not considering risk of the addition to solution of flocculant, the addition of organic matter will lead to subsequent MVR points
The purity decline of salt after salt technique；3. filter type is too simple.
Therefore, existing flying dust washing process is excessive using centrifuge, does not make full use of, not to the separating capacity of centrifuge
Consider risk of the addition to solution of flocculant, the addition of organic matter will lead to the purity decline that subsequent MVR divides salt after salt technique
And filter type it is too simple the problems such as, become those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
The present invention is to solve existing flying dust washing process to use centrifuge excessive, inabundant to the separating capacity of centrifuge
Using, do not consider risk of the addition to solution of flocculant, the addition of organic matter will lead to subsequent MVR and divide the pure of salt after salt technique
The problems such as degree decline and too simple filter type, provides the utilization of resources system of high-salt wastewater and side after flying dust is washed
Method.
To achieve the above object, the invention adopts the following technical scheme:
The utilization of resources system of high-salt wastewater after the first aspect of the invention is washed there is provided a kind of flying dust, comprising:
For receiving the flying dust water lotion flowed out from flying dust washing liquid pool and carrying out decalcification stirring to the flying dust water lotion
The decalcification reactor of processing；
For receiving the intermediate pool from decalcification reactor outflow solution；
For receive from the intermediate pool flow out solution and to solution be filtered processing the first tubular type microstrainer and
Second tubular type microstrainer；
For receiving from the first tubular type microstrainer and the second tubular type microstrainer outflow solution and being carried out to solution
The clear water reserviors that pH is adjusted；
For receiving the activated carbon adsorption device for flowing out solution from the clear water reserviors and carrying out granular absorption processing to solution；
For receiving the MVR feed cistern from activated carbon adsorption device outflow solution；And
For receiving from the first tubular type microstrainer and the second tubular type microstrainer outflow counter-flushing liquid liquid and to backwash
The inclined-plate clarifying basin that liquid is separated by solid-liquid separation.
It further, further include the pre- stirring pool of lye being connect with the decalcification reactor, the pre- stirring pool of lye is used
In being stirred alkali solid in advance with solvent, and lye will be obtained after stirring and flows into the decalcification reactor.
Further, the lye in the pre- stirring pool of the lye is discharged into the decalcification by certain flow by metering pump
In reactor.
Further, the bottom of the decalcification reactor is equipped with discharge outlet, and the solution in the decalcification reactor passes through institute
It states discharge outlet and flows into the intermediate pool.
Further, solution by chemical centrifugal pump is discharged into the first tubular type microstrainer and second in the intermediate pool
Tubular type microstrainer.
Further, the clear water reserviors are connect by pipeline with acid solution tank, and acid solution is arranged by metering pump in the acid solution tank
Enter the clear water reserviors.
Further, the blender for preventing suspended particulate substance to be deposited on bottom of pond is equipped in the intermediate pool.
Further, the lye in the pre- stirring pool of the lye is sodium carbonate liquor.
Further, the clear water reserviors are connect simultaneously by pipeline with the first tubular type microstrainer and the second tubular type microstrainer
The first tubular type microstrainer and the second tubular type microstrainer are backwashed.
The second aspect of the invention is with high salt after washing there is provided a kind of flying dust of utilization of resources system as described above
The resource utilization method of waste water, comprising the following steps:
Step 1: flying dust washing liquid pool in flying dust water lotion and the pre- stirring pool of the lye in lye flow into decalcification it is anti-
Answer device；
Step 2: solution is after the decalcification reactor decalcification stir process, by being set to decalcification reactor bottom
The discharge outlet in portion is discharged into intermediate pool；
Step 3: the solution in the intermediate pool is discharged into the first tubular type microstrainer and the second tubular type microstrainer by pump；
Step 4: solution is discharged into clear water reserviors by pumping by the first tubular type microstrainer and the second tubular type microstrainer；
Step 5: the clear water reserviors are connect by pipeline with acid solution tank, the acid solution in the acid solution tank is discharged into institute by pump
Clear water reserviors are stated, to adjust the pH value of solution in the clear water reserviors；
Step 6: the part solution in the clear water reserviors is by pump to the first tubular type microstrainer and the second tubular type micro-filtration
Device is backwashed, and counter-flushing liquid is discharged into sloping plate deposition by pumping by the first tubular type microstrainer and the second tubular type microstrainer
Pond, while remaining solution in the clear water reserviors is discharged into activated carbon adsorption device by pump；
Step 7: solution is discharged into MVR feed cistern after activated carbon adsorption device processing, through pump.
Further, in step 5, the pH value for adjusting the clear water reserviors (7) interior solution is 7-9.
Further, the first tubular type microstrainer described in step 6 and the work of the second tubular type microstrainer alternate run.
The present invention by adopting the above technical scheme, compared with prior art, has the following technical effect that
The utilization of resources system and method for high-salt wastewater, has except hardness, except suspension after flying dust washing provided by the invention
Solid, except organic matter, adjust the effect of pH value, effluent quality is preferable after processing, and long run supply MVR equipment is not using easily causing
MVR stop cleaning, and level of integrated system height, high degree of automation, tubular type microstrainer automation charging and flushing, pH are adjusted certainly
Dynamic feedback, activated carbon adsorption are automatically switched.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utilization of resources system of high-salt wastewater after flying dust of the present invention is washed；
Wherein, each appended drawing reference are as follows:
1- flying dust washes liquid pool, 2- decalcification reactor, the pre- stirring pool of 3- lye, 4- intermediate pool, 5- the first tubular type micro-filtration
Device, 6- the second tubular type microstrainer, 7- clear water reserviors, 8- activated carbon adsorption device, 9-MVR feed cistern, 10- inclined-plate clarifying basin, 11- acid
Flow container.
Specific embodiment
The present invention is described in more detail below by specific embodiment, for a better understanding of the present invention,
But following embodiments are not intended to limit the scope of the invention.
Embodiment 1
As shown in Figure 1, present embodiments providing the utilization of resources system of high-salt wastewater after a kind of washing of flying dust, comprising:
For receiving the flying dust water lotion flowed out from flying dust washing liquid pool 1 and carrying out decalcification stir process to flying dust water lotion
Decalcification reactor 2；
For receiving the intermediate pool 4 for flowing out solution from decalcification reactor 2；
For receiving the first tubular type microstrainer 5 and for flowing out solution from intermediate pool 4 and being filtered processing to solution
Two tubular type microstrainers 6；
For receiving from the first tubular type microstrainer 5 and the second tubular type microstrainer 6 outflow solution and carrying out pH adjusting to solution
Clear water reserviors 7；
For receiving to flow out solution from clear water reserviors 7 and carrying out the activated carbon adsorption device 8 of granular absorption processing to solution；
MVR feed cistern 9 for receiving to flow out solution from activated carbon adsorption device 8；And
For receive from the first tubular type microstrainer 5 and the second tubular type microstrainer 6 outflow counter-flushing liquid and to counter-flushing liquid into
The inclined-plate clarifying basin 10 that row is separated by solid-liquid separation.
The one aspect of the present embodiment, as shown in Figure 1, further include the pre- stirring pool 3 of lye being connect with decalcification reactor 2,
The pre- stirring pool 3 of lye will obtain lye and flow into decalcification reactor for being stirred alkali solid in advance with solvent after stirring
2。
The one aspect of the present embodiment, as shown in Figure 1, the lye in the pre- stirring pool 3 of lye presses a constant current by metering pump
Amount is discharged into decalcification reactor 2.
The one aspect of the present embodiment, as shown in Figure 1, the bottom of decalcification reactor 2 is equipped with discharge outlet, decalcification reactor 2
Interior solution flows into intermediate pool 4 by discharge outlet.
The one aspect of the present embodiment, as shown in Figure 1, solution by chemical centrifugal pump is discharged into the first pipe in intermediate pool 4
Decline filter 5 and the second tubular type microstrainer 6, and the first tubular type microstrainer 5 and the second tubular type microstrainer 6 may filter that in water 5 μm or more
The particle of diameter.
The one aspect of the present embodiment, as shown in Figure 1, clear water reserviors 7 are connect by pipeline with acid solution tank 11, in acid solution tank 11
Acid solution is discharged into clear water reserviors 7 by metering pump, the technical hydrochloric acid that the solution in acid solution tank 7 is 31%.
The one aspect of the present embodiment, as shown in Figure 1, being equipped in intermediate pool 4 prevents suspended particulate substance to be deposited on bottom of pond
Blender.
The one aspect of the present embodiment, as shown in Figure 1, the lye in the pre- stirring pool 3 of lye is sodium carbonate liquor.
The one aspect of the present embodiment, as shown in Figure 1, clear water reserviors 7 pass through pipeline and the first tubular type microstrainer 5 and the
Two tubular type microstrainers 6 are connected and are backwashed to the first tubular type microstrainer 5 and the second tubular type microstrainer 6.
Embodiment 2
The present embodiment provides a kind of flying dust washing according to the utilization of resources system of high-salt wastewater after above-mentioned flying dust washing
The resource utilization method of high-salt wastewater afterwards, comprising the following steps:
Step 1: the lye that flying dust is washed in flying dust water lotion and the pre- stirring pool 3 of lye in liquid pool 1 flows into decalcification reaction
Device 2；
Step 2: solution after 2 decalcification stir process of decalcification reactor, passes through the row set on 2 bottom of decalcification reactor
The mouth of a river is discharged into intermediate pool 4；
Step 3: the solution in intermediate pool 4 is discharged into the first tubular type microstrainer 5 by chemical centrifugal pump and the second tubular type is micro-
Filter 6；
Step 4: solution is discharged into clear water reserviors 7 by water pump by the first tubular type microstrainer 5 and the second tubular type microstrainer 6；
Step 5: clear water reserviors 7 are connect by pipeline with acid solution tank 11, the acid solution in acid solution tank 11 is discharged into clearly by metering pump
Pond 7, to adjust the pH value of solution in clear water reserviors 7；
Step 6: the part solution in clear water reserviors 7 is by water pump to the first tubular type microstrainer 5 and the second tubular type microstrainer 6
It is backwashed, counter-flushing liquid is discharged into inclined-plate clarifying basin by water pump by the first tubular type microstrainer 5 and the second tubular type microstrainer 6
10, while remaining solution in clear water reserviors 7 is discharged into activated carbon adsorption device 8 by Ordinary Centrifugal Pumps；
Step 7: solution is discharged into MVR feed cistern by water pump after the processing of the granular absorption of activated carbon adsorption device 8
9。
The one aspect of the present embodiment, in step 5, the pH value for adjusting solution in clear water reserviors 7 is 7-9, passes through acid solution tank 11
31% interior technical hydrochloric acid adjusts the pH value in clear water reserviors 7.
The one aspect of the present embodiment, 6 alternate run work of the first tubular type microstrainer 5 and the second tubular type microstrainer in step 6
Make.
Data comparison table the embodiment of the invention provides flying dust water by each ion concentration in water before and after present invention process,
Wherein the treating capacity of water is 0.5t/h, and the dosage of lye is 6.7kg/h, and the acid solution dosage that pH is adjusted is 4.1kg/h, using electricity
Position titrator is measured each ion concentration in water before and after technique, and table 1 is flying dust water before without decalcification technique of the present invention
Each ion concentration and pH value table, table 2 are flying dust water in each ion concentration and pH value table after decalcification technique of the present invention.
Table 1
Table 2
It should be clear from by the comparative analysis of data in Tables 1 and 2, using the flying dust water after process of the invention
Middle various ion concentration declines significant effect, and pH value control is between 7-9.
It is excessive using centrifuge for existing flying dust washing process, the separating capacity of centrifuge is not made full use of, not
Consider risk of the addition to solution of flocculant, the addition of organic matter will lead to the purity decline that subsequent MVR divides salt after salt technique
And filter type it is too simple the problems such as, utilization of resources system provided by the invention, have except hardness, except suspended solid, remove
Organic matter, the effect for adjusting pH value, effluent quality is preferable after processing, can be with long run supply MVR equipment use without easily causing
MVR stop cleaning, so that MVR continuous use duration can reach 3 months；Device integration height, automation journey in simultaneity factor
Degree is high, and the automation of tubular type microstrainer feeds and rinses, pH adjusts automatic feedback, activated carbon adsorption is automatically switched.
The specific embodiment of the utilization of resources system and method for high-salt wastewater after flying dust of the present invention washing is carried out above
Detailed description, but it is merely an example, and the present invention is not restricted to particular embodiments described above.For art technology
For personnel, any equivalent modifications and substitutions to the present invention are also within the scope of the present invention.Therefore, it is not departing from
Made equal transformation and modification, all should be contained within the scope of the invention under the spirit and scope of the present invention.
Claims (10)
1. the utilization of resources system of high-salt wastewater after a kind of flying dust washing characterized by comprising
For receiving the flying dust water lotion flowed out from flying dust washing liquid pool (1) and carrying out decalcification stirring place to the flying dust water lotion
The decalcification reactor (2) of reason；
For receiving the intermediate pool (4) from the decalcification reactor (2) outflow solution；
For receiving the first tubular type microstrainer (5) for flowing out solution from the intermediate pool (4) and being filtered processing to solution
With the second tubular type microstrainer (6)；
For receiving from the first tubular type microstrainer (5) and the second tubular type microstrainer (6) outflow solution and carrying out pH to solution
The clear water reserviors (7) of adjusting；
For receiving the activated carbon adsorption device for flowing out solution from the clear water reserviors (7) and carrying out granular absorption processing to solution
(8)；
For receiving the MVR feed cistern (9) from the activated carbon adsorption device (8) outflow solution；And
For receiving from the first tubular type microstrainer (5) and the second tubular type microstrainer (6) discharge counter-flushing liquid and to backwash
The inclined-plate clarifying basin (10) that liquid is separated by solid-liquid separation.
2. the utilization of resources system of high-salt wastewater after flying dust according to claim 1 washing, which is characterized in that further include with
The pre- stirring pool of lye (3) of the decalcification reactor (2) connection, the pre- stirring pool of lye (3) be used for by alkali solid with it is molten
Agent is stirred in advance, and will be obtained lye after stirring and flowed into the decalcification reactor (2).
3. the utilization of resources system of high-salt wastewater after flying dust washing according to claim 2, which is characterized in that the lye
Lye in pre- stirring pool (3) is discharged into the decalcification reactor (2) by metering pump by certain flow.
4. the utilization of resources system of high-salt wastewater after flying dust washing according to claim 1, which is characterized in that the centre
Pond (4) interior solution is discharged into the first tubular type microstrainer (5) and the second tubular type microstrainer (6) by chemical centrifugal pump.
5. the utilization of resources system of high-salt wastewater after flying dust washing according to claim 1, which is characterized in that the clear water
Pond (7) is connect by pipeline with acid solution tank (11), and the interior acid solution of the acid solution tank (11) is discharged into the clear water reserviors by metering pump
(7)。
6. the utilization of resources system of high-salt wastewater after flying dust washing according to claim 1, which is characterized in that the centre
The blender for preventing suspended particulate substance to be deposited on bottom of pond is equipped in pond (4).
7. the utilization of resources system of high-salt wastewater after flying dust washing according to claim 1, which is characterized in that the clear water
Pond (7) is connect and micro- to first tubular type by pipeline with the first tubular type microstrainer (5) and the second tubular type microstrainer (6)
Filter (5) and the second tubular type microstrainer (6) are backwashed.
8. a kind of resource utilization method of the utilization of resources system of the high-salt wastewater as described in claim any one of 1-7, feature
It is, comprising the following steps:
Step 1: the lye that flying dust is washed in flying dust water lotion and the pre- stirring pool of lye (3) in liquid pool (1) flows into decalcification reaction
Device (2)；
Step 2: solution is after decalcification reactor (2) the decalcification stir process, by being set to the decalcification reactor (2)
The discharge outlet of bottom is discharged into intermediate pool (4)；
Step 3: the solution in the intermediate pool (4) is sent by pumping to the first tubular type microstrainer (5) and the second tubular type microstrainer
(6)；
Step 4: the first tubular type microstrainer (5) and the second tubular type microstrainer (6) are sent solution to clear water reserviors (7) by pumping；
Step 5: the clear water reserviors (7) are connect by pipeline with acid solution tank (11), the acid solution in the acid solution tank (11) passes through pump
It send to the clear water reserviors (7), to adjust the pH value of the clear water reserviors (7) interior solution；
Step 6: the part solution in the clear water reserviors (7) is micro- to the first tubular type microstrainer (5) and the second tubular type by pumping
Filter (6) is backwashed, and the first tubular type microstrainer (5) and the second tubular type microstrainer (6) are sent counter-flushing liquid by pumping
To inclined-plate clarifying basin (10), while remaining solution in the clear water reserviors (7) is sent by pumping to activated carbon adsorption device (8)；
Step 7: solution is discharged into MVR feed cistern (9) after the activated carbon adsorption device (8) are handled, through pump.
9. the resource utilization method of high-salt wastewater after flying dust washing according to claim 7, which is characterized in that step 5
In, the pH value for adjusting the clear water reserviors (7) interior solution is 7-9.
10. the resource utilization method of high-salt wastewater after flying dust washing according to claim 7, which is characterized in that step 6
In, the first tubular type microstrainer (5) and the work of the second tubular type microstrainer (6) alternate run.
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