CN109879539A - A kind of waste water of basic printing and dyeing circular regeneration processing method - Google Patents
A kind of waste water of basic printing and dyeing circular regeneration processing method Download PDFInfo
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- 239000002351 wastewater Substances 0.000 title claims abstract description 91
- 238000004043 dyeing Methods 0.000 title claims abstract description 48
- 238000007639 printing Methods 0.000 title claims abstract description 20
- 230000008929 regeneration Effects 0.000 title claims abstract description 14
- 238000011069 regeneration method Methods 0.000 title claims abstract description 14
- 238000003672 processing method Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000012545 processing Methods 0.000 claims abstract description 20
- 238000001179 sorption measurement Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims abstract description 14
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 238000005189 flocculation Methods 0.000 claims abstract description 10
- 230000016615 flocculation Effects 0.000 claims abstract description 10
- 238000004042 decolorization Methods 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 8
- 230000002906 microbiologic effect Effects 0.000 claims abstract description 7
- 230000001954 sterilising effect Effects 0.000 claims abstract description 7
- 239000010802 sludge Substances 0.000 claims description 22
- 239000003463 adsorbent Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 18
- 229910052799 carbon Inorganic materials 0.000 claims description 12
- 238000007254 oxidation reaction Methods 0.000 claims description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 10
- 230000001112 coagulating effect Effects 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 239000002068 microbial inoculum Substances 0.000 claims description 9
- 238000004061 bleaching Methods 0.000 claims description 8
- 230000003750 conditioning effect Effects 0.000 claims description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 6
- 239000000084 colloidal system Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 239000000645 desinfectant Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 6
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 6
- 238000006396 nitration reaction Methods 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 230000001546 nitrifying effect Effects 0.000 claims description 5
- 239000004408 titanium dioxide Substances 0.000 claims description 5
- 239000003232 water-soluble binding agent Substances 0.000 claims description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- -1 iron ion Chemical class 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 244000005700 microbiome Species 0.000 claims description 4
- 239000002957 persistent organic pollutant Substances 0.000 claims description 4
- 229920002401 polyacrylamide Polymers 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 claims description 3
- 229920001661 Chitosan Polymers 0.000 claims description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 3
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 3
- 239000007844 bleaching agent Substances 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 239000000460 chlorine Substances 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 3
- 239000011790 ferrous sulphate Substances 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 3
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical group [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000008719 thickening Effects 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000006479 redox reaction Methods 0.000 abstract description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000000975 dye Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000003311 flocculating effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 1
- SJEYSFABYSGQBG-UHFFFAOYSA-M Patent blue Chemical compound [Na+].C1=CC(N(CC)CC)=CC=C1C(C=1C(=CC(=CC=1)S([O-])(=O)=O)S([O-])(=O)=O)=C1C=CC(=[N+](CC)CC)C=C1 SJEYSFABYSGQBG-UHFFFAOYSA-M 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000980 acid dye Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000982 direct dye Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000000985 reactive dye Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Physical Water Treatments (AREA)
Abstract
The present invention discloses a kind of waste water of basic printing and dyeing circular regeneration processing method, comprising the following steps: (1) cold filtration；(2) decolorization；(3) flocculation treatment；(4) neutralisation treatment；(5) ozone treatment；(6) microbiological treatment；(7) sterilization processing；(8) it post-processes.The present invention can effectively be handled the various pollutants in waste water, obvious processing effect by processes such as physical adsorption way and redox reactions, enhance the water rate of recovery, printing and dyeing enterprise can be alleviated significantly to the pressure of water resource, reduce the water consumption of enterprise, in addition the technical operation safe ready.
Description
Technical field
The present invention discloses a kind of waste water of basic printing and dyeing circular regeneration processing method, belongs to waste water of basic printing and dyeing and recycles skill
Art field.
Background technique
Textile printing and dyeing industry is industrial wastewater discharge rich and influential family, and wastewater discharge and the total amount of pollutant all occupy the national Ministry of Industry
Former positions of door, dyeing waste water is big with discharge amount always, processing difficulty is high and emphasis and difficulty as waste water treatment technical study
Point, with the fast development of Chinese economy, water scarcity have become restrict the limitation that further develops of China's dyeing because
Element.In order to realize the sustainable development of dyeing, the recycling of dyeing waste water becomes the key for realizing this target.
Textile printing and dyeing wastewater has the spies such as water is big, organic pollutant content is high, coloration is deep, alkalinity is big, change of water quality is big
Point, usual dyeing waste water uses biochemical method, but often treatment effect is undesirable in actual moving process, main
The reason is that the type due to dyeing changes, cause the change of component of waste water be discharged larger, the water of waste water also has biggish change
Change, more there is the additive used in certain production technologies to be unfavorable for the growth of biological respinse strain, due to treatment of dyeing wastewater skill
Art is excessively single, and water treatment effect is poor.
Summary of the invention
The purpose of the present invention is just providing a kind of waste water of basic printing and dyeing circular regeneration processing in order to solve the problem above-mentioned
Method.
The present invention is achieved through the following technical solutions above-mentioned purpose, a kind of waste water of basic printing and dyeing circular regeneration processing side
Method, comprising the following steps:
(1) cold filtration: carrying out cooling treatment for the dyeing waste water just discharged in cooling bay, by coarse grid net and carefully
The filtration treatment of grid screen removes the solid impurity in dyeing waste water；
(2) decolorization: filtered dyeing waste water is introduced into conditioning tank by water pump and carries out adsorption bleaching processing, simultaneously
Air is injected into conditioning tank to be aerated；
(3) flocculation treatment: by the dyeing waste water of decolorization by water pump introduce coagulating basin, with compound alkali adjust pH value to
12-14, is added flocculant in coagulating basin, flocculant using ferrous sulfate, ferric trichloride, magnesium sulfate, polyacrylamide it is mixed
Object is closed, mixed proportion 60: 25: 30: 1 puts into the flocculant of 200-500mg in every 1L waste water, and with blender with 30-
80r/min rate agitation coagulating basin in waste water, continue 1-2h, using calcium intrinsic in flocculant and dyeing waste water, magnesium,
Aluminium, iron ion generate hydroxide colloid under alkaline condition, and the suspended particulate substance in hydroxide colloid and dyeing waste water is total
With composite flocculation body is formed, 6-12h is staticly settled, separates waste water and sludge, the sludge after collecting sedimentation；
(4) neutralisation treatment: the waste water after flocculation treatment is introduced into neutralization pond by water pump, titanium dioxide is passed through in neutralization pond
Carbon, to adjust the pH value of waste water to 7；
(5) ozone treatment: the waste water after neutralisation treatment is introduced into oxidation reaction circulatory pool by water pump, is followed toward oxidation reaction
It is passed through ozone in cisterna ambiens, oxidation reaction is carried out to waste water, to remove remaining organic pollutant；
(6) microbiological treatment: the waste water after ozone treatment is imported in nitration reaction pond, and nitrifying microorganisms microbial inoculum is first added
Bio-contact oxidation is carried out, is to make ammonia nitrogen that nitrification sufficiently occur in 25 DEG C~35 DEG C and be converted into nitrate nitrogen in temperature, nitre
Change treated waste water to enter back into anti-nitration reaction pond through precipitating, addition denitrification microbial inoculum carries out anaerobic denitrifying effect, instead
The quality for nitrifying microbial inoculum is 3/1000000ths of wastewater quality, and denitrification treated water realizes that waste water is de- after precipitation process
Nitrogen；
(7) sterilization processing: the water outlet after microbiological treatment being introduced into filtering ponds and is filtered, and filtered water outlet introduces
Tower is sterilized, cholorination and disinfection by ultraviolet light are carried out；
(8) it post-processing: porous prilled object is formed into filter bed, porous prilled object is the mixture of active carbon and clay,
Water after sterilization processing is acted on through the adsorption filtration of filter bed, is recycled water after water quality reaching standard.
Preferably, the weight proportion that adsorption bleaching handles each ingredient of used adsorbent material is carried out in the step (2)
It is as follows: water-soluble binder 5-10%, clinker 10-30%, plant ash 3-6%, kaolin 0-28%, active carbon 6-10%, to take off
Toner 10-15%, activated sludge 5-8%, diatomite 0-30%, chitosan 0-5%, using water-soluble binder by adsorbent material
The spherical shape that diameter is 75-100mm is made.
Preferably, the conditioning tank launches 5500-6000 spherical adsorbent material, absorption in the pond face of every 10m × 10m
Material is 10-12 days using the time, and adsorbent material centrifugal dehydration after use is simultaneously recycled after drying.
Preferably, the ozone in the step (5) is to be generated by ozone generator, and utilize gas-liquid mixing pump or jet stream
Device is sufficiently mixed ozone with waste water.
Preferably, it is sodium hypochlorite or bleaching powder or chlorine that disinfectant used in cholorination is carried out in the step (7)
Gas, the input amount of disinfectant are 10-20g/L, and catalyst used in disinfection by ultraviolet light is titanium dioxide or manganese oxide.
Preferably, the sludge that the step (3), step (6) generate is discharged into sludge collecting pit, to sludge collecting pit
Sludge carries out thickening and press dry.
Compared with prior art, the beneficial effects of the present invention are:
The present invention, can be effectively to the various pollutions in waste water by processes such as physical adsorption way and redox reactions
Object is handled, obvious processing effect, enhances the water rate of recovery, can be alleviated printing and dyeing enterprise significantly to the pressure of water resource, be reduced enterprise
The water consumption of industry, in addition the technical operation safe ready.
Detailed description of the invention
Fig. 1 is a kind of structural block diagram of waste water of basic printing and dyeing circular regeneration processing method of the present invention.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
As shown in Figure 1, a kind of waste water of basic printing and dyeing circular regeneration processing method, comprising the following steps:
(1) cold filtration: carrying out cooling treatment for the dyeing waste water just discharged in cooling bay, by coarse grid net and carefully
The filtration treatment of grid screen removes the solid impurity in dyeing waste water；Due to containing a certain amount of cloth hair, line in dyeing waste water
The fine suspensions such as head, Soft flocks and other many larger suspended matters intercept larger suspended matter using coarse rack, utilize fine fack
Fine suspension is intercepted, avoids these suspended matters from damaging water pump, also facilitates the processing of subsequent technique；
(2) decolorization: filtered dyeing waste water is introduced into conditioning tank by water pump and carries out adsorption bleaching processing, simultaneously
Air is injected into conditioning tank to be aerated；It is passed through air in conditioning tank, dyeing waste water is sufficiently connect with adsorbent material
Touching, and its stirring can weaken concentration polarization phenomenon with oscillation action, improve reaction speed, accelerate the progress of reaction, and prevent
Floccule body deposits on adsorbent material surface and reduces its efficiency, saves the reaction time, and then shortens and carry out adsorption bleaching to waste water
The time of processing；
(3) flocculation treatment: by the dyeing waste water of decolorization by water pump introduce coagulating basin, with compound alkali adjust pH value to
12-14, is added flocculant in coagulating basin, flocculant using ferrous sulfate, ferric trichloride, magnesium sulfate, polyacrylamide it is mixed
Object is closed, mixed proportion 60: 25: 30: 1 puts into the flocculant of 200-500mg in every 1L waste water, and with blender with 30-
80r/min rate agitation coagulating basin in waste water, continue 1-2h, using calcium intrinsic in flocculant and dyeing waste water, magnesium,
Aluminium, iron ion generate hydroxide colloid under alkaline condition, and the suspended particulate substance in hydroxide colloid and dyeing waste water is total
With composite flocculation body is formed, 6-12h is staticly settled, separates waste water and sludge, the sludge after collecting sedimentation；Since compound alkali is useless
Impurity is few in water process and will not generate a large amount of mud, adjusts pH value using compound alkali, is more advantageous to coagulating waste water dephosphorization, except a huge sum of money
Belong to and adjust pH value etc., and there is preferable decolorization, and such flocculant has charge neutrality and adsorption bridging effect, wadding
Solidifying effect is good and easily prepared, cheap, increases the content of magnesium in flocculant, can greatly improve the flocculating effect of flocculant,
And by the effect of catching of the adsorption bridging of anionic polyacrylamide and net, small particulate matter constantly flocculate to be formed it is big,
The good particle of settling property, subsequent particle rely on self gravitation effect rapid subsidence, reach removal color degree of dyeing waste water, COD with
And the purpose of part metals ion, since flocculant dosage is one of the principal element for influencing flocculating effect, and measure wadding
The important indicator of solidifying agent performance, flocculant usage is excessive or too small all bad, and optimum amount is that flocculant is all attracted to
Solid phase particles surface can reach maximum COD removal rate when the dosage of flocculant is 360mg/L；
(4) neutralisation treatment: the waste water after flocculation treatment is introduced into neutralization pond by water pump, titanium dioxide is passed through in neutralization pond
Carbon, to adjust the pH value of waste water to 7；Sulfuric acid, hydrochloric acid are generallyd use in wastewater treatment to carry out acid-base neutralization, but sulfuric acid and salt
Acid is strong acid, using can accidentally cause harm to the human body, while also increasing the difficulty of process control, equipment maintenance
It spends, thus adjusts the pH value of alkaline waste water using cheap carbon dioxide, improve safety coefficient, it is strong to alleviate labour
Degree, improves process control capabilities, and carbon dioxide regulating system structure is simple, and maintenance is easy, good reliability, in addition dioxy
Changing carbon does not have corrosivity, can be used for a long time, improves its service life；
(5) ozone treatment: the waste water after neutralisation treatment is introduced into oxidation reaction circulatory pool by water pump, is followed toward oxidation reaction
It is passed through ozone in cisterna ambiens, oxidation reaction is carried out to waste water, to remove remaining organic pollutant, ozone is by ozone generator
It generates, and is sufficiently mixed ozone with waste water using gas-liquid mixing pump or ejector；By gas-liquid mixing pump or ejector,
Ozone produced by ozone generator and the waste water after neutralisation treatment are sufficiently mixed, under the action of ozone in fast degradation waste water
Organic matter, the usage amount of ozone can be reduced, while improving reaction efficiency；
(6) microbiological treatment: the waste water after ozone treatment is imported in nitration reaction pond, and nitrifying microorganisms microbial inoculum is first added
Bio-contact oxidation is carried out, is to make ammonia nitrogen that nitrification sufficiently occur in 25 DEG C~35 DEG C and be converted into nitrate nitrogen in temperature, nitre
Change treated waste water to enter back into anti-nitration reaction pond through precipitating, addition denitrification microbial inoculum carries out anaerobic denitrifying effect, instead
The quality for nitrifying microbial inoculum is 3/1000000ths of wastewater quality, and denitrification treated water realizes that waste water is de- after precipitation process
Nitrogen；Waste water is handled using microorganism, denitrogenation effectively is carried out to waste water；
(7) sterilization processing: the water outlet after microbiological treatment being introduced into filtering ponds and is filtered, and filtered water outlet introduces
Tower is sterilized, cholorination and disinfection by ultraviolet light are carried out；Various pathogenic microorganisms can be killed, the propagation of disease is prevented, ensure people
Health；
(8) it post-processing: porous prilled object is formed into filter bed, porous prilled object is the mixture of active carbon and clay,
Water after sterilization processing is acted on through the adsorption filtration of filter bed, is recycled water after water quality reaching standard, main pressurized pump
It is sent into technique moisturizing pipe network after pressurization and carries out reuse, to achieve the purpose that utilization of wastewater resource.
The weight proportion that each ingredient of adsorbent material used in adsorption bleaching processing is carried out in step (2) is as follows: water-soluble
Adhesive 5-10%, clinker 10-30%, plant ash 3-6%, kaolin 0-28%, active carbon 6-10%, decolorising agent 10-15%,
Activated sludge 5-8%, diatomite 0-30%, chitosan 0-5%, diameter, which is made, in adsorbent material using water-soluble binder is
The spherical shape of 75-100mm is mixed using a variety of adsorbents and decolorising agent, can effectively remove the dye of positive ion, direct dyes,
The water-soluble dyes such as acid dyes, reactive dye and hydrophobic dye, adsorption bleaching significant effect.
Conditioning tank launches 5500-6000 spherical adsorbent material, the use of adsorbent material in the pond face of every 10m × 10m
Time is 10-12 days, and adsorbent material centrifugal dehydration after use is simultaneously recycled after drying, and can be carried out sufficiently to adsorbent material
It utilizes, improves its service life, reduce cost for wastewater treatment.
It is sodium hypochlorite or bleaching powder or chlorine that disinfectant used in cholorination is carried out in step (7), disinfectant
Input amount is 10-20g/L, and catalyst used in disinfection by ultraviolet light is titanium dioxide or manganese oxide.
The sludge that step (3), step (6) generate is discharged into sludge collecting pit, the sludge of sludge collecting pit is carried out dense
Contracting dehydration press dry, and facilitates the processing and transport of sludge, improves treatment effect.
The present invention, can be effectively to the various pollutions in waste water by processes such as physical adsorption way and redox reactions
Object is handled, obvious processing effect, enhances the water rate of recovery, can be alleviated printing and dyeing enterprise significantly to the pressure of water resource, be reduced enterprise
The water consumption of industry, in addition the technical operation safe ready.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (6)
1. a kind of waste water of basic printing and dyeing circular regeneration processing method, which comprises the following steps:
(1) cold filtration: the dyeing waste water just discharged is subjected to cooling treatment in cooling bay, passes through coarse grid net and thin grid
The filtration treatment of net removes the solid impurity in dyeing waste water；
(2) decolorization: filtered dyeing waste water is introduced into conditioning tank by water pump and carries out adsorption bleaching processing, while to tune
Injection air is aerated in section pond；
(3) flocculation treatment: introducing coagulating basin by water pump for the dyeing waste water of decolorization, adjusts pH value to 12- with compound alkali
14, flocculant is added in coagulating basin, flocculant uses the mixing of ferrous sulfate, ferric trichloride, magnesium sulfate, polyacrylamide
Object, mixed proportion 60: 25: 30: 1 put into the flocculant of 200-500mg in every 1L waste water, and with blender with 30-
80r/min rate agitation coagulating basin in waste water, continue 1-2h, using calcium intrinsic in flocculant and dyeing waste water, magnesium,
Aluminium, iron ion generate hydroxide colloid under alkaline condition, and the suspended particulate substance in hydroxide colloid and dyeing waste water is total
With composite flocculation body is formed, 6-12h is staticly settled, separates waste water and sludge, the sludge after collecting sedimentation；
(4) neutralisation treatment: introducing neutralization pond by water pump for the waste water after flocculation treatment, carbon dioxide be passed through in neutralization pond,
To adjust the pH value of waste water to 7；
(5) ozone treatment: the waste water after neutralisation treatment is introduced into oxidation reaction circulatory pool by water pump, toward oxidation reaction circulatory pool
It is inside passed through ozone, oxidation reaction is carried out to waste water, to remove remaining organic pollutant；
(6) microbiological treatment: the waste water after ozone treatment is imported in nitration reaction pond, and nitrifying microorganisms microbial inoculum is first added and carries out
Bio-contact oxidation is to make ammonia nitrogen that nitrification sufficiently occur in 25 DEG C~35 DEG C and be converted into nitrate nitrogen, at nitrification in temperature
Waste water after reason enters back into anti-nitration reaction pond through precipitating, and addition denitrification microbial inoculum carries out anaerobic denitrifying effect, denitrification
The quality of microbial inoculum is 3/1000000ths of wastewater quality, and denitrification treated water realizes denitrogenation of waste water after precipitation process；
(7) sterilization processing: the water outlet after microbiological treatment being introduced into filtering ponds and is filtered, and filtered water outlet introduces disinfection
Tower carries out cholorination and disinfection by ultraviolet light；
(8) it post-processes: porous prilled object being formed into filter bed, porous prilled object is the mixture of active carbon and clay, sterilization
Treated, and water is acted on through the adsorption filtration of filter bed, is recycled water after water quality reaching standard.
2. a kind of waste water of basic printing and dyeing circular regeneration processing method according to claim 1, which is characterized in that the step
(2) weight proportion that each ingredient of adsorbent material used in adsorption bleaching processing is carried out in is as follows: water-soluble binder 5-10%,
Clinker 10-30%, plant ash 3-6%, kaolin 0-28%, active carbon 6-10%, decolorising agent 10-15%, activated sludge 5-
8%, using water-soluble binder the ball that diameter is 75-100mm is made in adsorbent material by diatomite 0-30%, chitosan 0-5%
Shape.
3. a kind of waste water of basic printing and dyeing circular regeneration processing method according to claim 2, which is characterized in that the adjusting
5500-6000 spherical adsorbent material is launched in the pond face of every 10m × 10m in pond, and adsorbent material is 10-12 using the time
It, adsorbent material centrifugal dehydration after use is simultaneously recycled after drying.
4. a kind of waste water of basic printing and dyeing circular regeneration processing method according to claim 1, which is characterized in that the step
(5) ozone in is to be generated by ozone generator, and be sufficiently mixed ozone with waste water using gas-liquid mixing pump or ejector.
5. a kind of waste water of basic printing and dyeing circular regeneration processing method according to claim 1, which is characterized in that the step
(7) it is sodium hypochlorite or bleaching powder or chlorine that disinfectant used in cholorination is carried out in, and the input amount of disinfectant is 10-
20g/L, catalyst used in disinfection by ultraviolet light are titanium dioxide or manganese oxide.
6. a kind of waste water of basic printing and dyeing circular regeneration processing method according to claim 1, which is characterized in that by the step
Suddenly the sludge that (3), step (6) generate is discharged into sludge collecting pit, is carried out thickening to the sludge of sludge collecting pit and is pressed dry.
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Application publication date: 20190614 |