CN108439689A - The Zero discharge treatment method and processing system of wet method depickling waste water - Google Patents
The Zero discharge treatment method and processing system of wet method depickling waste water Download PDFInfo
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- CN108439689A CN108439689A CN201810384880.5A CN201810384880A CN108439689A CN 108439689 A CN108439689 A CN 108439689A CN 201810384880 A CN201810384880 A CN 201810384880A CN 108439689 A CN108439689 A CN 108439689A
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- waste water
- wet method
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- depickling waste
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- 238000000034 method Methods 0.000 title claims abstract description 117
- 239000002351 wastewater Substances 0.000 title claims abstract description 73
- 238000012545 processing Methods 0.000 title claims abstract description 62
- 208000028659 discharge Diseases 0.000 title claims abstract description 25
- 239000013049 sediment Substances 0.000 claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 239000006228 supernatant Substances 0.000 claims abstract description 58
- 238000005189 flocculation Methods 0.000 claims abstract description 46
- 230000016615 flocculation Effects 0.000 claims abstract description 46
- 230000003647 oxidation Effects 0.000 claims abstract description 43
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 43
- 238000001914 filtration Methods 0.000 claims abstract description 36
- 239000000706 filtrate Substances 0.000 claims abstract description 22
- 238000002425 crystallisation Methods 0.000 claims abstract description 18
- 230000008025 crystallization Effects 0.000 claims abstract description 18
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 12
- 239000011575 calcium Substances 0.000 claims abstract description 12
- 239000013078 crystal Substances 0.000 claims abstract description 12
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 11
- 150000002500 ions Chemical class 0.000 claims abstract description 11
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 11
- 239000011777 magnesium Substances 0.000 claims abstract description 11
- 150000003839 salts Chemical class 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 10
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- 238000006386 neutralization reaction Methods 0.000 claims description 27
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 238000000926 separation method Methods 0.000 claims description 15
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 10
- 238000001556 precipitation Methods 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000010801 sewage sludge Substances 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 230000014759 maintenance of location Effects 0.000 claims description 8
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 7
- 239000003456 ion exchange resin Substances 0.000 claims description 7
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 7
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 6
- 229910001424 calcium ion Inorganic materials 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 6
- 239000000395 magnesium oxide Substances 0.000 claims description 5
- 239000010453 quartz Substances 0.000 claims description 5
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 4
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 4
- 238000005276 aerator Methods 0.000 claims description 4
- 229910001425 magnesium ion Inorganic materials 0.000 claims description 4
- 239000007800 oxidant agent Substances 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 4
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical group [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 4
- 239000002738 chelating agent Substances 0.000 claims description 3
- 239000005416 organic matter Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 abstract description 5
- 238000003672 processing method Methods 0.000 abstract description 4
- 239000010802 sludge Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 7
- 239000012535 impurity Substances 0.000 description 6
- 239000003814 drug Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 238000000746 purification Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000010813 municipal solid waste Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 239000013522 chelant Substances 0.000 description 2
- 238000005352 clarification Methods 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 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 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- -1 salt Salt Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical class O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000725 suspension Substances 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/05—Conductivity or salinity
- C02F2209/055—Hardness
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/11—Turbidity
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of Zero discharge treatment method and processing system of wet method depickling waste water, processing method includes：S1, wet method depickling waste water is pre-processed, aoxidizes the reducing substances in wet method depickling waste water；S2, pretreated wet method depickling waste water is subjected to level-one flocculation sediment processing, removes calcium therein, magnesium, silicate；S3, the supernatant that the processing of level-one flocculation sediment obtains is subjected to two level flocculation sediment processing, removes heavy metal ion therein；S4, the supernatant that the processing of two level flocculation sediment obtains is subjected to pH adjustings and carries out filtration treatment；S5, the filtrate being obtained by filtration is subjected to sofening treatment, obtains softening water outlet；S6, softening water outlet is subjected to oxidation processes and evaporative crystallization processing successively, obtains crystal salt.The present invention carries out at least 95% recycling and the recycling of crystal salt to wet method depickling waste water, realizes the target of harmless treatment and the zero-emission of wet method depickling waste water, while also protecting environment.
Description
Technical field
The present invention relates to the Zero discharge treatment method of technical field of waste water processing more particularly to a kind of wet method depickling waste water and
Processing system.
Background technology
Burning method can be most cities with the minimizing of most fast velocity interpolation garbage disposal, innoxious and recycling
The development trend of domestic rubbish disposal.Flue gas caused by waste incineration is the issuable main secondary dirt of burning disposal process
Contaminate one of source.Pollutant component is based on the compositions such as particulate matter, HCl, NOx, SOX, HCl, CO and dioxin.Sour gas is de-
Except technology is the core of flue gases purification, technique can with the dry and wet form of deacidified product by whether deacidification has water to be added
It is divided into three kinds of wet method, dry method and semidry method.Flue gas purifying technique be contaminant component in the exhaust gas generated by Refuse Incineration Process,
Concentration and the discharge standard that executes of needs determine.
Dry purification process is fairly simple, and investment is low, and operation and maintenance are convenient, but dry process purification efficiency is relatively low,
Pharmaceutical use is big.Semidry method purification technique can reach higher purification efficiency, and investment is low with operating cost, and flow is simple, but
It is that lime white preparation system is more complex, solid will appear wall sticking phenomenon in absorption tower, and pipeline is easy to block, and sprayer is easy to wear broken
It splits, the problems such as absorbent dosage is difficult to control.The Pollutant-degrading gene highest of wet cleaning technique, but flow is complicated, it is mating
Equipment is more, and has subsequent waste water handling problem.
Invention content
The technical problem to be solved in the present invention is, provides a kind of wet method carrying out reprocessing reuse to wet method depickling waste water
The Zero discharge treatment method and processing system of depickling waste water.
The technical solution adopted by the present invention to solve the technical problems is：It provides at a kind of zero-emission of wet method depickling waste water
Reason method, includes the following steps：
S1, wet method depickling waste water is pre-processed, aoxidizes the reducing substances in wet method depickling waste water；
S2, pretreated wet method depickling waste water is subjected to level-one flocculation sediment processing, removes calcium therein, magnesium, silicic acid
Salt；
S3, the supernatant that the processing of level-one flocculation sediment obtains is subjected to two level flocculation sediment processing, removes a huge sum of money therein
Belong to ion；
S4, the supernatant that the processing of two level flocculation sediment obtains is subjected to pH adjustings and carries out filtration treatment；
S5, the filtrate being obtained by filtration is subjected to sofening treatment, obtains softening water outlet；
S6, softening water outlet is subjected to oxidation processes and evaporative crystallization processing successively, obtains crystal salt.
Preferably, in step S2, addition sodium hydroxide, magnesia mixture and flocculant are reacted in wet method depickling waste water, so
After carry out precipitation separation, obtain sediment and supernatant.
Preferably, in step S3, supernatant and sodium carbonate that the processing of level-one flocculation sediment is obtained, heavy metal chelating agent and
Flocculant is reacted, and precipitation separation is then carried out, and obtains sediment and supernatant.
Preferably, in step S4, hydrochloric acid progress neutralization reaction is added in supernatant, adjusts the pH of supernatant.
Preferably, in step S4, the filtration treatment includes the by-pass filtration and secondary filtration carried out successively；In level-one mistake
In filter, the supernatant after pH is adjusted carries out retention separation by quartz filter；In secondary filtration, by-pass filtration obtains
The filtrate arrived passes through active carbon filter, removes organic matter, suspended matter in filtrate.
Preferably, in step S5, sofening treatment is carried out to the filtrate using ion exchange resin, removes the calcium in filtrate
Ion and magnesium ion obtain softening water outlet；
After the softening water outlet carries out oxidation processes, sodium hydroxide is added and carries out pH adjustings；
In oxidation processes, oxidant is sodium hypochlorite.
The present invention also provides a kind of zero-discharge treatment systems of wet method depickling waste water, including：
Regulating reservoir pre-processes wet method depickling waste water, aoxidizes the reducing substances in wet method depickling waste water；
The first-stage reactor for connecting the regulating reservoir carries out at level-one flocculation sediment pretreated wet method depickling waste water
Reason removes calcium therein, magnesium, silicate；
The second reactor for connecting the first-stage reactor, the supernatant obtained to the processing of level-one flocculation sediment carry out two level
Flocculation sediment processing, removes heavy metal ion therein；
The neutralization pond for connecting the second reactor carries out pH tune to the supernatant obtained after the processing of two level flocculation sediment
Section；
The filter element for connecting the neutralization pond, to pH adjust after supernatant be filtered with carry out retention separation and
Organics removal and suspended matter；
The demineralizer for connecting the filter element carries out sofening treatment to the filtrate being obtained by filtration；
The oxidation reactor for connecting the demineralizer is discharged softening and carries out oxidation processes；And
The evaporative crystallization unit for connecting the oxidation reactor is evaporated at crystallization the production water that oxidation processes obtain
Reason.
Preferably, the regulating reservoir is equipped with aerator；
The filter element includes sequentially connected grade one filter and secondary filter；The grade one filter is quartz
Sand filter；The secondary filter is active carbon filter；
The demineralizer is ion exchange resin demineralizer.
Preferably, the outlet pipe of the grade one filter and/or secondary filter is equipped with online Turbidity measurement instrument；It is described
It is respectively equipped with pressure sensor on the water inlet pipe and outlet pipe of grade one filter and/or secondary filter；And/or
PH on-line measurement instrument is equipped in the first-stage reactor, second reactor and neutralization pond；The water outlet of the demineralizer
Pipe is equipped with online hardness detecting instrument.
Preferably, the processing system further includes primary-clarifiers, Secondary clarifier and sewage sludge storage pond；The level-one
Clarifier is connected between the first-stage reactor and second reactor, and the Secondary clarifier is connected to the second reactor
Between neutralization pond；The primary-clarifiers connect the sewage sludge storage pond with the bottom of Secondary clarifier.
Beneficial effects of the present invention：Wet method depickling waste water is pre-processed, level-one flocculation sediment, two level flocculation sediment,
The processing such as neutralization, filtering, softening, oxidation, evaporative crystallization so that wet method depickling waste water realizes 95% reuse and crystal salt
Recycling, realize the target of harmless treatment and the zero-emission of wet method depickling waste water, while also protecting environment.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 is the flow diagram of the Zero discharge treatment method of the wet method depickling waste water of one embodiment of the invention；
Fig. 2 is the structure diagram of the zero-discharge treatment system of the wet method depickling waste water of one embodiment of the invention.
Specific implementation mode
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
The specific implementation mode of the present invention.
With reference to figure 1, the Zero discharge treatment method of the wet method depickling waste water of one embodiment of the invention, wet method is dehydrated waste water and includes
The waste water that wet method depickling is handled is carried out to rubbish the like waste.The processing method may include following steps：
S1, wet method depickling waste water is pre-processed, aoxidizes reducing substances (hydrogen sulfide, the nitrogen in wet method depickling waste water
Oxide etc.).During pretreated, the water quality and quantity of wet method depickling waste water is can also adjust, achievees the purpose that homogeneous, is reduced
Influence of the variation of water quality and quantity to subsequent handling.
The pretreatment carries out in regulating reservoir, is provided with aerator, to being filled with air or oxygen etc. in regulating reservoir, reaches
To the purpose of redox, substance.
S2, pretreated wet method depickling waste water is subjected to level-one flocculation sediment processing, removes calcium, magnesium, silicon in waste water
The impurity such as hydrochlorate can also remove suspended matter therein, soften to waste water, reduce and the stifled risk of fouling dirt occurs.
In the processing of level-one flocculation sediment, it is anti-that sodium hydroxide, magnesia mixture and flocculant progress are added in wet method depickling waste water
It answers, calcium, magnesium, silicate in wet method depickling waste water etc. is reacted with sodium hydroxide, magnesia mixture and flocculant generates sediment；Precipitation point
From acquisition sediment and supernatant.Sediment can be discharged into sewage sludge storage pond and be focused on, and supernatant enters at next stage
Reason.
S3, the supernatant that the processing of level-one flocculation sediment obtains is subjected to two level flocculation sediment processing, removes a huge sum of money therein
Belong to ion.
In the processing of two level flocculation sediment, sodium carbonate, a huge sum of money is added in the supernatant that the processing of level-one flocculation sediment obtains
Belong to agent for capturing, flocculant and coagulant, makes the heavy metal ion in supernatant react to form chelate, in supernatant
Remaining major part calcium ion can also be reacted with sodium carbonate generates sediment；Precipitation separation, obtains sediment and supernatant.Precipitation
Object can be discharged into sewage sludge storage pond and be focused on, and supernatant enters next stage processing.
S4, the supernatant that the processing of two level flocculation sediment obtains is subjected to pH adjustings and carries out filtration treatment.
Specifically, in step S4, hydrochloric acid progress neutralization reaction is added in supernatant, adjusts the pH to 6-9 of supernatant,
It avoids the pH value of supernatant excessively high, cannot be satisfied discharge standard and subsequent processing requirement.
Filtration treatment includes the by-pass filtration and secondary filtration carried out successively.
In by-pass filtration, the supernatant after pH is adjusted carries out retention separation by quartz filter.In quartz
In sand filter, using quartz sand as filler, filtration resistance is small, and large specific surface area, resistance to acid and alkali is strong, and resistance tocrocking is good, has
Conducive to the impurity in removal supernatant.
In secondary filtration, the filtrate that by-pass filtration obtains passes through active carbon filter, at least removes organic in filtrate
Object, suspended matter.Wherein, active carbon filter absorbs and filter supernatant using the adsorption function of activated carbon, can will be not easy
Organic impurities with clarification removal and small suspended matter absorption retention, to remove suspended matter therein (SS), organic microbial
Deng reducing CODcr (dichromate oxidizability), BOD5 (biochemical oxygen demand (BOD)) and peculiar smell, make standard water discharge.
S5, the filtrate being obtained by filtration is subjected to sofening treatment, obtains softening water outlet.
In sofening treatment, ion exchange resin can be used and softened, removes calcium ion, the magnesium ion etc. in filtrate.
S6, softening water outlet is subjected to oxidation processes and evaporative crystallization processing successively, obtains crystal salt.
After softening water outlet carries out oxidation processes, sodium hydroxide is added and carries out pH adjustings, the oxidation after oxidation processes is discharged
PH value be adjusted to 9.5 or 9.5 or so (such as between 9.0-10.0), it is in alkalescent to control the waste water after evaporative crystallization, prevents from tying
Dirt.In oxidation processes, oxidant is sodium hypochlorite.
The oxidation obtained after oxidation processes water outlet is evaporated concentration, separation, drying etc., it is industry to obtain crystal salt
Salt, resourcebility utilize.
As shown in Fig. 2, the zero-discharge treatment system of the wet method depickling waste water of one embodiment of the invention, it may include be sequentially connected
Regulating reservoir 10, first-stage reactor 20, second reactor 30, neutralization pond 40, filter element 50, demineralizer 60, oxidation reactor
70, evaporative crystallization unit 80 etc., wet method depickling waste water each section successively, is handled, finally obtains crystal salt accordingly successively,
Realize harmless treatment, zero-emission and the resource reutilization of wet method depickling waste water.
Wherein, regulating reservoir 10 aoxidizes the reproducibility in wet method depickling waste water for being pre-processed to wet method depickling waste water
Substance.Regulating reservoir 10 reaches the mesh of redox, substance equipped with aerator to being filled with air or oxygen etc. in regulating reservoir
's.In regulating reservoir 10, the water quality and quantity of wet method depickling waste water is can also adjust, achievees the purpose that homogeneous, reduces water quality and quantity
Change the influence to subsequent handling, alleviate the operating pressure for frequent starting/stopping that rear end respectively pumps, rear end process is made to stablize fortune
Row.
The water outlet of regulating reservoir 10 can connect the water inlet end of first-stage reactor 20 by outlet conduit, in the driving of elevator pump
Under, pretreated wet method depickling waste water is delivered to first-stage reactor 20.
First-stage reactor 20 carries out level-one flocculation sediment processing to pretreated wet method depickling waste water, and removal is therein
The impurity such as calcium, magnesium, silicate can also remove suspended matter therein, soften to waste water, reduce and the stifled wind of fouling dirt occurs
Danger.In the case that blender is stirred at an upper portion thereof in first-stage reactor 20, sodium hydroxide, magnesia mixture and flocculant are added
Equal medicaments are reacted with wet method depickling waste water, the generation sediment such as calcium therein, magnesium, silicate.By level-one flocculation sediment
The supernatant that processing is formed is delivered to second reactor 30 and carries out two level flocculation sediment processing, and sediment can then focus on.
The supernatant that second reactor 30 obtains the processing of level-one flocculation sediment carries out two level flocculation sediment processing, removes it
In heavy metal ion, also can remove remaining most of calcium ion after the processing of level-one flocculation sediment.In second reactor 30,
The medicaments such as sodium carbonate, heavy metal chelating agent, flocculant and coagulant are added, the heavy metal ion in supernatant is made to occur instead with it
Chelate should be formed, remaining most of calcium ion can also react generation sediment with sodium carbonate in supernatant.It wads a quilt with cotton by two level
The supernatant that solidifying precipitation process is formed is delivered to neutralization pond 40 and is neutralized, and sediment can then be handled with level-one flocculation sediment
The sediment of formation focuses on together.
PH on-line measurement instrument can be arranged as required in first-stage reactor 20 and second reactor 30, in real time detection wherein liquid
The pH of body.
Corresponding level-one flocculation sediment processing and the processing of two level flocculation sediment, it is clear that processing system of the invention may also include level-one
Clear device 21 and Secondary clarifier 31.Primary-clarifiers 21 are connected between first-stage reactor 20 and second reactor 30, and two level is clear
Clear device 31 is connected between second reactor 30 and neutralization pond 40.
Specifically, the water outlet of the input end connection first-stage reactor 20 of primary-clarifiers 21, primary-clarifiers 21 go out
Water end (W.E.) then connects the water inlet end of second reactor 30；The input end of the water outlet connection Secondary clarifier 31 of second reactor, two
The water outlet of grade clarifier 31 then connects the water inlet end of neutralization pond 40.
The upper liquid of first-stage reactor 20 enters primary-clarifiers 21 and carries out precipitation separation.Primary-clarifiers 21 select inclined tube
Clarifier, built-in inclined tube, center water inlet peripheral effluent collect sludge using swinging mud scraper.Mud scraper scraper plate will be sink to pond
The sludge (sediment) at bottom is scraped to the sludge bucket at pond center, then is discharged through sludge pipe.The water outlet of primary-clarifiers 21 flows into two level certainly
Reactor 30 continues with.
The water outlet of second reactor 30 enters Secondary clarifier 31 and carries out precipitation separation.Secondary clarifier 31 selects inclined tube clear
Clear device, built-in inclined tube, center water inlet peripheral effluent collect sludge using swinging mud scraper.Mud scraper scraper plate will be sink to bottom of pond
Sludge (sediment) scrape to the sludge bucket at pond center, then be discharged through sludge pipe.
Mud level meter is set in primary-clarifiers 21 and Secondary clarifier 31, and mud level meter can be communicated with control system to be connected with will
The data monitored are uploaded to control system.The sludge pump of 31 bottom spoil disposal of primary-clarifiers 21 and Secondary clarifier, which is selected, to be become
The screw pump of frequency control.
The processing system of the present invention further may also include sewage sludge storage pond 90.Primary-clarifiers 21 and Secondary clarifier 31
Bottom connection sewage sludge storage pond 90, the sludge (sediment) of discharge is discharged into sewage sludge storage pond 90 and is focused on.
Neutralization pond 40 carries out pH adjustings to the supernatant obtained after the processing of two level flocculation sediment.In neutralization pond 40, acid is added
Alkali medicament (such as hydrochloric acid) and supernatant neutralization reaction therein, adjust the pH to 6-9 of supernatant.It can exist equipped with pH in neutralization pond 40
Line measuring instrument, the pH of detection wherein supernatant, the addition of soda acid medicament is controlled according to the variation of supernatant pH in real time.
Supernatant after filter element 50 adjusts pH is filtered to carry out retention separation and organics removal and hang
Float.In the present embodiment, filter element 50 includes sequentially connected grade one filter 51 and secondary filter 52, after neutralization
Supernatant carries out the secondary filtration of the by-pass filtration and advanced treating of retention separation successively.
Grade one filter 51 connects neutralization pond 40.Wherein, grade one filter 51 is quartz filter, is made using quartz sand
For filler, filtration resistance is small, and large specific surface area, resistance to acid and alkali is strong, and resistance tocrocking is good, effectively remove suspended matter in supernatant,
The impurity such as colloid.
The filtrate that grade one filter 51 exports enters secondary filter 52.Secondary filter 52 is active carbon filter, profit
Supernatant is absorbed and filter with the adsorption function of activated carbon, it can be by the organic impurities of not easy-to-use clarification removal and small suspension
Object absorption retains, to remove suspended matter therein (SS), organic microbial etc., reduce CODcr (dichromate oxidizability),
BOD5 (biochemical oxygen demand (BOD)) and peculiar smell, make standard water discharge.
Water inlet pipe, outlet pipe, backwash water inlet pipe, backwash air inlet pipe, exhaust pipe of active carbon filter etc. are all arranged
Pneumatic operated valve；Hand-operated butterfly valve is set before backwash air inlet pipe pneumatic operated valve.
At least one outlet pipe is equipped with online Turbidity measurement instrument in grade one filter 51 and secondary filter 52, to going out
Water is monitored in real time, and the data monitored can be uploaded to control system.Grade one filter 51 and/or secondary filter 52 into
It can also be respectively equipped with pressure sensor on water pipe and outlet pipe, water-in and water-out pipe pressure is monitored in real time, and true according to pressure difference
Determine backwashing time, the pressure data monitored can be uploaded to control system.
Filtering raw water box can be equipped between neutralization pond 40 and grade one filter 51, after storing the neutralization from neutralization pond 40
Supernatant, then by intake pump by filter raw water box in liquid be delivered to grade one filter 51.What grade one filter 51 exported
Filtrate enters secondary filter 52 using overbottom pressure.
Demineralizer 60 carries out sofening treatment to the filtrate being obtained by filtration, and water inlet end connects secondary filter 52；Two level mistake
The filtrate that filter 52 exports enters demineralizer 60 by water pump and softens, and removes calcium ion therein, magnesium ion etc..Demineralizer 60
Outlet pipe is equipped with online hardness detecting instrument, is monitored in real time to water outlet, the data monitored can be uploaded to control system.
In the present embodiment, demineralizer 60 is ion exchange resin demineralizer, using the exchange interaction of ion by calcium, magnesium in liquid
Plasma removes.Water inlet pipe, outlet pipe, backwash water inlet pipe, backwash air inlet pipe, the exhaust pipe of ion exchange resin demineralizer
Deng being all arranged pneumatic operated valve, pneumatic diaphragm valve is arranged in regenerated liquid inlet/outlet pipe.Hand-operated butterfly valve is set before backwash air inlet pipe pneumatic operated valve.
The softening water outlet obtained after 60 sofening treatment of demineralizer is pumped to oxidation reactor 70 by water and carries out oxidation processes.
Oxidation reactor 70 is discharged softening and carries out oxidation processes, further removes COD difficult to degrade in water removal.In oxidation reactor 70
In, using sodium hypochlorite as oxidant.
It can be equipped with chemicals dosing plant on the water outlet pipeline of oxidation reactor 70, adjusted for the soda acids medicament such as sodium hydroxide to be added
The pH of oxidation water outlet is adjusted to 9.5 or 9.5 or so (such as between 9.0-10.0) by the pH value for aoxidizing water outlet.
The oxidation of oxidation reactor 70, which goes out, can be arranged static pressure type liquid level sensor on water pot, the data sensed can be uploaded to
Control system.
Evaporative crystallization unit 80 is evaporated crystallization treatment to the oxidation water outlet that oxidation processes obtain, to obtain crystal salt
(Nacl).
Evaporative crystallization unit 80 may include evaporator, crystallizing tank, centrifugal separating device, drying device etc., evaporator it is defeated
Outlet connects crystallizing tank, and the output end of crystallizing tank connects centrifugal separating device, and centrifugal separating device output end connects drying device.
The oxidation that oxidation reactor 70 exports is discharged into evaporator and is evaporated concentration, and concentrate enters crystallizing tank and crystallized, obtained
Crystallized product pass through the centrifuging treatment of centrifugal separating device, obtained product drying device it is dry at
Reason, obtains crystal salt finished product.
In evaporative crystallization unit 80, energy consumption can be reduced by using MVR vapour compression machines.
Further, processing system of the invention may also include control system, connects and controls to adjust pond 10, first order reaction
Device 20, second reactor 30, neutralization pond 40, filter element 50, demineralizer 60, oxidation reactor 70, evaporative crystallization unit 80 etc.
Middle relevant action.
In conjunction with Fig. 1,2, the processing system of the present invention is applied in the processing method of the present invention, to wet method depickling waste water
Processing may include following steps：
S1, wet method depickling waste water is pre-processed in regulating reservoir 10, aoxidizes the reproducibility object in wet method depickling waste water
Matter.
S2, pretreated wet method depickling waste water enter first-stage reactor 20 and carry out level-one flocculation sediment processing, remove it
In calcium, magnesium, silicate, obtain supernatant.
S3, the supernatant that acquisition is handled by level-one flocculation sediment, which enter second reactor 30, to carry out at two level flocculation sediment
Reason removes heavy metal ion therein, obtains supernatant.
S4, the supernatant that the processing of two level flocculation sediment obtains is sent to the progress pH adjustings of neutralization pond 40, it is upper after pH adjustings
Clear liquid is filtered processing by filter element 50.
S5, the filtrate being obtained by filtration is sent to the progress sofening treatment of demineralizer 60, obtains softening water outlet.
S6, softening water outlet sent to oxidation reactor 70 carry out oxidation processes, the oxidation water outlet after oxidation processes send again to
Evaporative crystallization unit 80 is evaporated crystallization treatment, obtains crystal salt.
The processing method and processing system of the present invention is by the pretreatment to wet method depickling waste water, flocculation sediment processing, mistake
Filter, softening and with a series of processing such as oxidation, realize the reuse of wet method depickling waste water 95% and the recycling profit of crystal salt
With realizing the target of harmless treatment and the zero-emission of wet method depickling waste water, while also protecting environment.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of Zero discharge treatment method of wet method depickling waste water, which is characterized in that include the following steps：
S1, wet method depickling waste water is pre-processed, aoxidizes the reducing substances in wet method depickling waste water；
S2, pretreated wet method depickling waste water is subjected to level-one flocculation sediment processing, removes calcium therein, magnesium, silicate；
S3, by level-one flocculation sediment processing obtain supernatant carry out two level flocculation sediment processing, remove heavy metal therein from
Son；
S4, the supernatant that the processing of two level flocculation sediment obtains is subjected to pH adjustings and carries out filtration treatment；
S5, the filtrate being obtained by filtration is subjected to sofening treatment, obtains softening water outlet；
S6, softening water outlet is subjected to oxidation processes and evaporative crystallization processing successively, obtains crystal salt.
2. the Zero discharge treatment method of wet method depickling waste water according to claim 1, which is characterized in that in step S2,
Sodium hydroxide is added in wet method depickling waste water, magnesia mixture and flocculant are reacted, and precipitation separation is then carried out, obtain sediment and
Supernatant.
3. the Zero discharge treatment method of wet method depickling waste water according to claim 1, which is characterized in that, will in step S3
The supernatant that the processing of level-one flocculation sediment obtains is reacted with sodium carbonate, heavy metal chelating agent and flocculant, is then sunk
Form sediment separation, acquisition sediment and supernatant.
4. the Zero discharge treatment method of wet method depickling waste water according to claim 1, which is characterized in that in step S4,
Hydrochloric acid is added in supernatant and carries out neutralization reaction, adjusts the pH of supernatant.
5. the Zero discharge treatment method of wet method depickling waste water according to claim 1, which is characterized in that in step S4, institute
It includes the by-pass filtration and secondary filtration carried out successively to state filtration treatment；In by-pass filtration, the supernatant after pH is adjusted
Retention separation is carried out by quartz filter；In secondary filtration, the filtrate that by-pass filtration obtains passes through active carbon filter,
Remove organic matter, the suspended matter in filtrate.
6. the Zero discharge treatment method of wet method depickling waste water according to claim 1, which is characterized in that in step S5, adopt
Spent ion exchange resin carries out sofening treatment to the filtrate, removes calcium ion and magnesium ion in filtrate, obtains softening water outlet；
After the softening water outlet carries out oxidation processes, sodium hydroxide is added and carries out pH adjustings；
In oxidation processes, oxidant is sodium hypochlorite.
7. a kind of zero-discharge treatment system of wet method depickling waste water, which is characterized in that including：
Regulating reservoir pre-processes wet method depickling waste water, aoxidizes the reducing substances in wet method depickling waste water；
The first-stage reactor for connecting the regulating reservoir carries out level-one flocculation sediment processing to pretreated wet method depickling waste water,
Remove calcium therein, magnesium, silicate；
The second reactor for connecting the first-stage reactor, the supernatant obtained to the processing of level-one flocculation sediment carry out two level flocculation
Precipitation process removes heavy metal ion therein；
The neutralization pond for connecting the second reactor carries out pH adjustings to the supernatant obtained after the processing of two level flocculation sediment；
The filter element for connecting the neutralization pond, the supernatant after being adjusted to pH are filtered to carry out retention separation and removal
Organic matter and suspended matter；
The demineralizer for connecting the filter element carries out sofening treatment to the filtrate being obtained by filtration；
The oxidation reactor for connecting the demineralizer is discharged softening and carries out oxidation processes；And
The evaporative crystallization unit for connecting the oxidation reactor is evaporated crystallization treatment to the production water that oxidation processes obtain.
8. the zero-discharge treatment system of wet method depickling waste water according to claim 7, which is characterized in that the regulating reservoir is set
There is aerator；
The filter element includes sequentially connected grade one filter and secondary filter；The grade one filter is quartz sand mistake
Filter；The secondary filter is active carbon filter；
The demineralizer is ion exchange resin demineralizer.
9. the zero-discharge treatment system of wet method depickling waste water according to claim 8, which is characterized in that the by-pass filtration
The outlet pipe of device and/or secondary filter is equipped with online Turbidity measurement instrument；The grade one filter and/or secondary filter
It is respectively equipped with pressure sensor on water inlet pipe and outlet pipe；And/or
PH on-line measurement instrument is equipped in the first-stage reactor, second reactor and neutralization pond；On the outlet pipe of the demineralizer
Equipped with online hardness detecting instrument.
10. according to the zero-discharge treatment system of claim 7-9 any one of them wet method depickling waste water, which is characterized in that institute
It further includes primary-clarifiers, Secondary clarifier and sewage sludge storage pond to state processing system；The primary-clarifiers are connected to described
Between first-stage reactor and second reactor, the Secondary clarifier is connected between the second reactor and neutralization pond；Institute
It states primary-clarifiers and connects the sewage sludge storage pond with the bottom of Secondary clarifier.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112551792A (en) * | 2020-12-09 | 2021-03-26 | 武汉深能环保新沟垃圾发电有限公司 | Fly ash washing wastewater and wet deacidification wastewater co-treatment method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254104A (en) * | 2015-11-06 | 2016-01-20 | 江苏京源环保股份有限公司 | Desulphurization wastewater zero discharge treatment process for power plant with low running cost |
| CN105439358A (en) * | 2015-12-30 | 2016-03-30 | 北京清大国华环境股份有限公司 | Method and device for realizing zero discharge of desulfurization wastewater |
| CN105540977A (en) * | 2016-01-14 | 2016-05-04 | 中电环保股份有限公司 | Desulfurized waste water treatment method and system |
| CN106746108A (en) * | 2016-11-30 | 2017-05-31 | 大唐国际化工技术研究院有限公司 | A kind of desulfurization wastewater recycling treatment system and method |
-
2018
- 2018-04-26 CN CN201810384880.5A patent/CN108439689A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254104A (en) * | 2015-11-06 | 2016-01-20 | 江苏京源环保股份有限公司 | Desulphurization wastewater zero discharge treatment process for power plant with low running cost |
| CN105439358A (en) * | 2015-12-30 | 2016-03-30 | 北京清大国华环境股份有限公司 | Method and device for realizing zero discharge of desulfurization wastewater |
| CN105540977A (en) * | 2016-01-14 | 2016-05-04 | 中电环保股份有限公司 | Desulfurized waste water treatment method and system |
| CN106746108A (en) * | 2016-11-30 | 2017-05-31 | 大唐国际化工技术研究院有限公司 | A kind of desulfurization wastewater recycling treatment system and method |
Non-Patent Citations (1)
| Title |
|---|
| 大连海运学院辅机教研组: "《固体废物处理及利用》", 中央广播电视大学出版社, pages: 183 - 184 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112551792A (en) * | 2020-12-09 | 2021-03-26 | 武汉深能环保新沟垃圾发电有限公司 | Fly ash washing wastewater and wet deacidification wastewater co-treatment method |
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Application publication date: 20180824 |