CN108658251B - Treating agent for textile wastewater, preparation method and treatment process thereof - Google Patents
Treating agent for textile wastewater, preparation method and treatment process thereof Download PDFInfo
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- CN108658251B CN108658251B CN201810711037.3A CN201810711037A CN108658251B CN 108658251 B CN108658251 B CN 108658251B CN 201810711037 A CN201810711037 A CN 201810711037A CN 108658251 B CN108658251 B CN 108658251B
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- 239000010918 textile wastewater Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000008569 process Effects 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 48
- 102000004190 Enzymes Human genes 0.000 claims abstract description 44
- 108090000790 Enzymes Proteins 0.000 claims abstract description 44
- 239000012190 activator Substances 0.000 claims abstract description 35
- 230000003213 activating effect Effects 0.000 claims abstract description 18
- 239000010865 sewage Substances 0.000 claims abstract description 13
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 12
- 230000007704 transition Effects 0.000 claims abstract description 4
- 239000010802 sludge Substances 0.000 claims description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 56
- 238000006243 chemical reaction Methods 0.000 claims description 44
- 239000002131 composite material Substances 0.000 claims description 30
- 239000000047 product Substances 0.000 claims description 25
- 239000002351 wastewater Substances 0.000 claims description 25
- 238000005189 flocculation Methods 0.000 claims description 23
- 230000016615 flocculation Effects 0.000 claims description 23
- 241000894006 Bacteria Species 0.000 claims description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 239000008055 phosphate buffer solution Substances 0.000 claims description 18
- 238000006386 neutralization reaction Methods 0.000 claims description 16
- 238000005336 cracking Methods 0.000 claims description 14
- 244000063299 Bacillus subtilis Species 0.000 claims description 12
- 235000014469 Bacillus subtilis Nutrition 0.000 claims description 12
- 230000004913 activation Effects 0.000 claims description 12
- 238000004062 sedimentation Methods 0.000 claims description 11
- 244000005700 microbiome Species 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 9
- 239000000975 dye Substances 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000010992 reflux Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 239000006228 supernatant Substances 0.000 claims description 8
- 239000000243 solution Substances 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 6
- 238000005538 encapsulation Methods 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 6
- 238000009987 spinning Methods 0.000 claims description 6
- 231100000331 toxic Toxicity 0.000 claims description 6
- 230000002588 toxic effect Effects 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000007873 sieving Methods 0.000 claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 238000005273 aeration Methods 0.000 claims description 4
- 150000003863 ammonium salts Chemical class 0.000 claims description 4
- 230000003197 catalytic effect Effects 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- 239000010419 fine particle Substances 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 4
- 238000000265 homogenisation Methods 0.000 claims description 4
- 239000010954 inorganic particle Substances 0.000 claims description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000011068 loading method Methods 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 4
- 239000010452 phosphate Substances 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000013049 sediment Substances 0.000 claims description 4
- 238000004659 sterilization and disinfection Methods 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 230000002194 synthesizing effect Effects 0.000 claims description 4
- 238000010257 thawing Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 3
- 238000000855 fermentation Methods 0.000 claims description 3
- 230000004151 fermentation Effects 0.000 claims description 3
- 230000000887 hydrating effect Effects 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 230000003301 hydrolyzing effect Effects 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 238000013329 compounding Methods 0.000 claims description 2
- 238000011049 filling Methods 0.000 claims description 2
- 230000036571 hydration Effects 0.000 claims description 2
- 238000006703 hydration reaction Methods 0.000 claims description 2
- 238000009210 therapy by ultrasound Methods 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims 1
- 239000004753 textile Substances 0.000 abstract description 10
- 230000006872 improvement Effects 0.000 description 14
- 239000006166 lysate Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 10
- 239000000126 substance Substances 0.000 description 9
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 239000004480 active ingredient Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 239000004005 microsphere Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052570 clay Inorganic materials 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 229960005191 ferric oxide Drugs 0.000 description 3
- 239000008394 flocculating agent Substances 0.000 description 3
- 235000013980 iron oxide Nutrition 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002306 biochemical method Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 238000011197 physicochemical method Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229940024548 aluminum oxide Drugs 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000003278 mimic effect Effects 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 1
- 235000019799 monosodium phosphate Nutrition 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- -1 processes Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 239000000988 sulfur dye Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- 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
-
- 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
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
-
- 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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Microbiology (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention discloses a treating agent for textile wastewater, a preparation method and a treatment process thereof, belonging to the technical field of sewage treatment, and comprising a nano-enzyme SECMGA, an activator WRLL and an activator BOJF, wherein the activator WRLL and the activator BOJF are used for activating the nano-enzyme SECMGA; the nano enzyme SECMGGA is activated before use, and the activator WRLL and the activator BOJF are respectively required agents for activating the original SECMGGA; the activator WRLL is also a desirable agent for activating the transition state SECMGA to the activated state SECMGA. The treating agent is used for treating textile wastewater, has simple process flow, low equipment investment, automatic control, flexible operation and convenient management, and is suitable for large-scale use in wastewater treatment workshops of textile enterprises.
Description
Technical Field
The invention relates to a treating agent for textile wastewater, a preparation method and a treatment process thereof, belonging to the technical field of sewage treatment.
Background
In recent years, with the rapid development of textile industry, the treatment of a large amount of sewage with complex toxic substances also becomes an environmental protection problem to be solved urgently. The textile industry comprises the industries of textile, printing and dyeing, clothing and the like, and the wastewater is characterized by high concentration of organic pollutants in the components, poor biodegradability, deep chromaticity and the like, and has higher treatment difficulty.
The water quality of the textile industrial wastewater is different, and the raw materials, processes, dyes and chemicals are changed more, which means that each condition is different, which brings certain difficulty to the treatment of the tail end, and also determines that the textile wastewater is treated independently or comprehensively with other industrial wastewater or municipal wastewater, and generally selects a biochemical method and is assisted by a physicochemical method. The biochemical method comprises activated sludge, biological contact oxidation, a biomembrane method and the like, and the physicochemical method comprises a coagulating sedimentation method, an adsorption filtration method and the like.
The above treatment methods generally require pretreatment to ensure the treatment effect and stable operation of the biological treatment method. The COD and the chromaticity of the wastewater treatment are difficult to reach the standard by the prior art. The prior Chinese patent 'a composite material and a preparation method and application thereof in biochemical treatment of sewage' (application number is CN201710784101.6) discloses a composite material which mainly comprises silicon, aluminum and ironOxide of the element is prepared by mixing, and the microsphere has a porous lamellar microspherical structure, the diameter of the microsphere is 1-5000 microns, and the specific surface area is 50-500m2(ii) in terms of/g. The invention also discloses a preparation method of the composite material, which comprises the steps of firstly preparing sodium silicate, clay and Fe2O3，Al2O3Mixing with strong acid, reaction, adding nitrogen, high-temp calcining, adding water vapor, high-temp high-pressure hydrating, drying, pulverizing and sieving. The invention also provides the application of the composite material in the biochemical treatment of sewage. The application effect of the composite material in textile wastewater is not particularly ideal.
Therefore, how to apply the treatment technology of textile wastewater, turn the harmful into the beneficial, promote the ecological environment protection and the sustainable development of the textile industry, have important practical significance.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a treating agent for textile wastewater, which solves the problems of complex components, high content of organic substances and harmful substances, deep chromaticity, serious harm to water and the like in the textile wastewater.
The invention also provides a preparation method and a treatment process of the treating agent.
In order to achieve the aim, the invention adopts a treating agent for textile wastewater, which comprises a nano enzyme SECMGA, an activator WRLL for activating the nano enzyme SECMGA and an activator BOJF;
the nano enzyme SECMGGA is activated before use, and the activator WRLL and the activator BOJF are respectively required agents for activating the original SECMGGA; the activator WRLL is also a desirable agent for activating the transition state SECMGA to the activated state SECMGA.
As an improvement, the nano enzyme SECMGGA is a nano enzyme with oxidation catalytic activity formed by taking a composite material as a preparation carrier and compounding a purified and washed bacillus subtilis and a mild cracking product of a good activated sludge microorganism.
As an improvement, the active ingredients of the nano enzyme SECMGGA are Bacillus subtilis, hydrolytic bacteria in excellent activated sludge, fermentation bacteria, hydrogen bacteria and acetic acid bacteria, methane bacteria, sulfate reducing bacteria and mild cracking products of anaerobic protozoa.
As an improvement, the activator WRLL adopts dihydric phosphate, and the activator BOJF adopts ammonium salt.
In addition, the invention also provides a preparation method of the treating agent for textile wastewater, which comprises the following steps:
1) preparing a composite material with a nano microspherical structure as a carrier;
2) collecting bacillus subtilis and activated sludge microorganisms which are separated, purified and cultured for several days, and synthesizing a mild method of freeze thawing and ultrasonic crushing to obtain a cracking active product of the bacteria, washing with pure water for later use, wherein the preparation process is mild and low temperature is kept;
3) dispersing the composite material with the nano micro-spherical structure prepared in the step 1) into a phosphate buffer solution with the pH value of 6-9 to form a low-viscosity solution, wherein the using amount of the composite material is 0.2-2% of the phosphate buffer solution, adding the cracking product obtained in the step 2), the adding amount of the cracking product is 0.1-10% of the phosphate buffer solution, stirring at normal temperature for 1-4 h, performing low-frequency ultrasonic treatment, sieving with a 200-400-mesh sieve, measuring the encapsulation rate, and then loading into specific water treatment equipment.
In addition, the invention also provides a treatment process for textile wastewater, which comprises the following steps:
a) collecting the textile wastewater by a water collecting tank, intercepting paper scraps, foam paper, plastics and large-particle impurity suspended matters in the water by a coarse grating and a fine grating, further removing fine particle impurities, then entering a grit chamber, removing inorganic particles with higher density in the water, pumping into a regulating tank, and homogenizing the water quality and the water quantity;
b) the pH of the textile wastewater is high, the spinning wastewater needs neutralization treatment after homogenization so that the pH meets the treatment requirement of a treating agent, the effluent of a regulating reservoir enters a wastewater neutralization pond, and H is used when the pH of raw water is low2SO4Or HCl neutralization;
c) the effluent after the neutralization of the wastewater is pumped into a reaction tank, the treating agent is added according to a certain proportion, and the primary activation and the cyclic treatment of COD are completed in the stage, so that organic matters, toxic dyes and nitrogen and phosphorus removal are guaranteed to be removed;
d) pumping raw water into a sedimentation tank for sedimentation, refluxing a bottom material to a reaction tank through a sludge reflux device, and feeding a supernatant liquid into a flocculation tank for subsequent treatment;
e) after the flocculation tank is treated, the supernatant enters a subsequent conventional sewage treatment link for further treatment, the sludge enters a sludge tank for filter pressing, and finally the obtained sludge blocks are transported outside;
f) the effluent treated by the flocculation tank enters a filter tank for temporary storage, is finally sterilized by an ultraviolet disinfection tank, and can be recycled or discharged after being detected to reach the standard;
g) and collecting the residual sludge from the reaction tank and the sediments after the reaction in the flocculation tank by a sludge collecting well, then concentrating the sludge in a sludge concentration workshop, then conveying the sludge to a sludge dewatering workshop for dewatering to obtain a sludge cake, and carrying out outward transportation treatment at regular intervals.
As an improvement, in the step c), the specific operation of adding the treating agent into the reaction tank is as follows:
1) adding a nano enzyme SECMGGA with the volume of 0.05-1% of that of a reaction tank, then adding WRLL with the volume of 0.1-0.8% and BOJF with the volume of 0.01-0.3% of that of the reaction tank, activating the nano enzyme SECMGA by activators WRLL and BOJF for 12-48 h, and also adopting flowing water for 24h multiplied by 1-4 to realize the activation of the nano enzyme SECMGA;
2) after activation is completed, adding the nano enzyme SECMGGA and 0.02-0.08% of WRLL according to 0.005-0.08% of the treated water amount in daily life, and staying for 6-24 h.
As an improvement, the dosage of the flocculating agent added into the flocculation tank is 0-2% of that of the wastewater.
As an improvement, the flocculant is one of polyaluminium chloride and polyaluminium sulfate or a mixture of the polyaluminium chloride and the polyaluminium sulfate.
As an improvement, when the stirring speed in the reaction tank is lower than 200r/min, an aeration device needs to be additionally arranged in the reaction tank.
Compared with the prior art, the invention has the beneficial effects that:
1) the nano material SECMGGA particle of the invention is a nano mimic enzyme with excellent catalytic oxidation capability. The composite carrier has the characteristics of physicochemical treatment of sewage: porous adsorption, contact action, flocculation precipitation and the like; the active components of the microorganisms in the nano enzyme can effectively decompose organic matters and toxic dyes, and effectively solve the problem of unstable operation caused by easy inhibition in biochemical treatment. The use characteristics of the treating agent provided by the invention are combined, and the wastewater treatment process is improved and perfected, so that the method has an excellent pushing effect on the development of a sustainable and low-energy-consumption wastewater treatment process.
2) The invention designs the process for treating the textile wastewater by combining the basic principle of the nano enzyme, can greatly reduce the wastewater treatment cost, reduces the investment cost of enterprises on preventing and treating water environment pollution, and improves the economic benefit. The textile wastewater treatment agent nano enzyme SECMGA provided by the invention is combined with porous substance particles such as diatomite and the like, so that pollutants in the wastewater are adsorbed on the surface of the porous enzyme to be removed, and the decoloring efficiency of hydrophobic dyes is very high; the aerobic-anaerobic microorganism which is the active component compounded by the nano enzyme effectively reduces the concentration of COD and BOD; the corresponding textile wastewater treatment process has the advantages of simple flow, low equipment investment, automatic control, flexible operation and convenient management, and is suitable for large-scale use of wastewater treatment workshops of textile enterprises.
Drawings
FIG. 1 is a flow chart of the textile wastewater treatment process of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention.
A treating agent for textile wastewater comprises a nano enzyme SECMGGA, and an activator WRLL and an activator BOJF for activating the nano enzyme SECMGGA;
the nano enzyme SECMGGA is activated before use, and the activator WRLL and the activator BOJF are respectively required agents for activating the original SECMGGA; the activator WRLL is also a desirable agent for activating the transition state SECMGA to the activated state SECMGA.
As an improvement, the nano enzyme SECMGGA takes the composite material disclosed in the prior patent "a composite material and a preparation method and application thereof in biochemical treatment of sewage" (application number is CN201710784101.6) as a preparation carrier, and compounds the purified and washed bacillus subtilis and the mild decomposition product of excellent activated sludge microorganisms to form the nano enzyme with oxidation catalytic activity. The nano enzyme SECMGGA carrier is a composite material, is mainly prepared by combining oxides of silicon, aluminum and iron elements with clay through a special process, and is a microsphere with a porous lamellar structure, wherein the diameter range of the microsphere is 1-5000 microns.
As an improvement, the active ingredients of the nano enzyme SECMGGA are Bacillus subtilis, hydrolytic bacteria, fermentation bacteria, hydrogen bacteria, acetic acid bacteria, methane bacteria, sulfate reducing bacteria and mild lysate after domestication of anaerobic protozoa in excellent activated sludge. Preferably, bacillus subtilis and activated sludge are adopted to acclimatize the excellent flora.
As a modification, the activating agent WRLL adopts dihydric phosphate, preferably one or two of sodium dihydrogen phosphate and potassium dihydrogen phosphate; the activator BOJF adopts ammonium salt, and preferably adopts one or more of ammonium carbonate, ammonium nitrate and ammonium sulfate.
In addition, the invention also provides a preparation method of the treating agent for textile wastewater, which comprises the following steps:
1) preparing a composite material with a nano microspherical structure as a carrier;
2) collecting bacillus subtilis and activated sludge microorganisms which are separated, purified and cultured for several days, and synthesizing a mild method of freeze thawing and ultrasonic crushing to obtain a cracking active product of the bacteria, washing with pure water for later use, wherein the preparation process is mild and low temperature is kept;
3) dispersing the composite material with the nano micro-spherical structure prepared in the step 1) into a phosphate buffer solution with the pH value of 6-9 to form a low-viscosity solution, wherein the using amount of the composite material is 0.2-2% of the phosphate buffer solution, adding the cracking product obtained in the step 2), the adding amount of the cracking product is 0.1-10% of the phosphate buffer solution, stirring at normal temperature for 1-4 h, passing through a 200-400-mesh net after low-frequency ultrasonic, measuring the encapsulation rate, and then loading into specific water treatment equipment.
In addition, the invention also provides a treatment process adopting the treating agent, which comprises the following steps:
a) textile wastewater is firstly collected by a water collecting tank, then suspended matters such as paper scraps, foam paper, plastics, large-particle impurities and the like in water are intercepted by a coarse grating and a fine grating, fine particle impurities are further removed, the textile wastewater enters a grit chamber, inorganic particles with higher density in the water are removed, and the textile wastewater is pumped into a regulating tank to homogenize water quality and water quantity;
b) the PH of the spinning wastewater is high, the spinning wastewater still needs neutralization treatment after homogenization so that the PH meets the requirement of subsequent new material treatment, the effluent of a regulating reservoir enters a wastewater neutralization pond, and H is usually used when the PH of raw water is low2SO4Or HCl neutralization (to ensure the activity of nano-enzyme during reaction), and desulfurization and ash removal can be considered after adjustment;
c) the effluent after the neutralization of the wastewater is pumped into a reaction tank, the treating agent is added according to a certain proportion, and the primary activation and the cyclic treatment of COD are completed in the stage, so that organic matters, toxic dyes and nitrogen and phosphorus removal are guaranteed to be removed;
the basic reaction formula of the treating agent for textile wastewater COD degradation is as follows:
d) pumping raw water into a sedimentation tank for sedimentation, refluxing a bottom material to a reaction tank through a sludge reflux device, and feeding a supernatant liquid into a flocculation tank for subsequent treatment;
e) after the flocculation tank is treated, the supernatant enters a subsequent conventional sewage treatment link for further treatment, the sludge enters a sludge tank for filter pressing, and finally the obtained sludge blocks are transported outside;
f) the effluent treated by the flocculation tank enters a filter tank for temporary storage, is finally sterilized by an ultraviolet disinfection tank, and can be recycled or discharged after being detected to reach the standard;
g) and collecting the residual sludge from the reaction tank and the sediments after the reaction in the flocculation tank by a sludge collecting well, then concentrating the sludge in a sludge concentration workshop, then conveying the sludge to a sludge dewatering workshop for dewatering to obtain a sludge cake, and carrying out outward transportation treatment at regular intervals.
As an improvement, in the step c), the specific operation of adding the treating agent into the reaction tank is as follows:
1) adding a nano enzyme SECMGGA with the volume of 0.05-1% of that of a reaction tank, then adding WRLL with the volume of 0.1-0.8% and BOJF with the volume of 0.01-0.3% of that of the reaction tank, activating the nano enzyme SECMGA by activators WRLL and BOJF for 12-48 h, and also adopting flowing water for 24h multiplied by 1-4 to realize the activation of the nano enzyme SECMGA;
2) after activation is completed, adding the nano enzyme SECMGGA and 0.02-0.08% of WRLL according to 0.005-0.08% of the treated water amount in daily life, and staying for 6-24 h.
As an improvement, the dosage of the flocculating agent added into the flocculation tank is 0-2% of that of the wastewater. The treating agent of the invention can be used without flocculant or only with the dosage of 1/8-1/4 of the original flocculant. Removing fine suspended matters, floating matters and colloidal substances in water by chemical flocculation and sedimentation
As an improvement, the flocculant is one of polyaluminium chloride and polyaluminium sulfate or a mixture of the polyaluminium chloride and the polyaluminium sulfate.
As an improvement, when the stirring speed in the reaction tank is lower than 200r/min, an aeration device needs to be additionally arranged in the reaction tank. In addition, a PH monitoring device is also arranged in the reaction tank.
The porous structure of the SECMGA has an adsorption effect and high removal rate on chroma and turbidity.
The components of silicon, aluminum and iron oxide of the SECMGA can remove insoluble colored substances, and ensure the treatment effect and the running stability of the oxidation reduction of active ingredients.
The active component of the SECMGA, namely the bacillus subtilis, can generate a plurality of extracellular enzymes, can rapidly decompose organic matters in wastewater and promote the oxidation of sulfur dyes and nitrite; the use of the active ingredients of the aerobic-anaerobic microorganisms greatly improves the removal rate of BOD and COD.
Example 1
A treating agent for textile wastewater comprises a nano enzyme SECMGGA, and an activator WRLL and an activator BOJF for activating the nano enzyme SECMGGA, wherein the activator WRLL adopts dihydric phosphate, and the activator BOJF adopts ammonium salt;
the treating agent is prepared by the following steps:
1) the composite material with a nano microspherical structure is prepared to be used as a carrier of the invention by adopting the prior patent of 'a composite material and a preparation method and application thereof in biochemical treatment of sewage' (the application number is CN 201710784101.6); e.g. adopt
a) 100 g of sodium silicate, 30 g of clay (from Wanhong mining Co., Ltd., Qingdao), 30 g of iron oxide (Fe)2O3) 30 g of alumina (Al)2O3) 10ml of concentrated hydrochloric acid (commercially available) are uniformly mixed and reacted for 6 hours in a closed manner at 120 ℃;
b) uniformly mixing the reaction product obtained in the step a), introducing nitrogen at 100 ℃, and continuously blowing the nitrogen for 30 minutes;
c) calcining the product obtained in the step b) at high temperature of 650 ℃ in air for 30 minutes;
d) filling the calcined product in the step c) into steam, and hydrating at high temperature and high pressure (3 atmospheric pressure, 120 ℃);
e) carrying out microwave drying treatment on the hydration product in the step d);
f) ultrasonically crushing the product after the microwave drying treatment, and sieving the product by a 320-mesh sieve to obtain the final required material;
2) collecting bacillus subtilis and activated sludge microorganisms which are separated, purified and cultured for several days, and synthesizing a mild method of freeze thawing and ultrasonic crushing to obtain a cracking active product of the bacteria, washing with pure water for later use, wherein the preparation process is mild and low temperature is kept;
3) dispersing the composite material with the nano micro-spherical structure prepared in the step 1) into phosphate buffer solution with the pH value of 6 to form low-viscosity solution, wherein the using amount of the composite material is 0.2% of the phosphate buffer solution, then adding the lysate obtained in the step 2), the adding amount of the lysate is 0.1% of the phosphate buffer solution, stirring for 1h at normal temperature, passing through a 200-mesh net after low-frequency ultrasound, measuring the encapsulation rate, and then loading into specific water treatment equipment.
Example 2
A preparation method of a treating agent for textile wastewater, wherein the steps 1) and 2) are the same as those in the embodiment 1;
in the step 3), the composite material with the nano microspherical structure prepared in the step 1) is dispersed into phosphate buffer solution with the pH value of 8 to form low-viscosity solution, wherein the using amount of the composite material is 1% of that of the phosphate buffer solution, then the composite material is added into the lysate obtained in the step 2), the adding amount of the lysate is 5% of that of the phosphate buffer solution, the lysate is stirred for 2 hours at normal temperature, the lysate passes through a 300-mesh net after low-frequency ultrasound, the encapsulation rate is measured, and then the lysate is loaded into specific water treatment equipment.
Example 3
A preparation method of a treating agent for textile wastewater, wherein the steps 1) and 2) are the same as those in the embodiment 1;
in the step 3), the composite material with the nano microspherical structure prepared in the step 1) is dispersed into phosphate buffer solution with the pH value of 9 to form low-viscosity solution, wherein the using amount of the composite material is 2% of that of the phosphate buffer solution, then the composite material is added into the lysate obtained in the step 2), the adding amount of the lysate is 10% of that of the phosphate buffer solution, the lysate is stirred for 4 hours at normal temperature, the lysate passes through a 400-mesh net after low-frequency ultrasound, the encapsulation rate is measured, and then the lysate is loaded into specific water treatment equipment.
Example 4
By adopting the preparation method described in example 1, the treating agent prepared by the invention is put into textile wastewater (taken from XX textile mill), and is treated according to the laboratory sewage flow, the main pollutant indexes COD, BOD and toxic dye in the wastewater are respectively measured, and the treatment effect is shown in Table 1.
TABLE 1 treatment Effect of the treating agent of the present invention on textile wastewater
The analysis table 1 shows that the textile wastewater treatment agent can effectively reduce the COD, BOD and dye content in the water, and can be effectively used for treating the wastewater of textile factories by combining with the process flow.
Example 5
With reference to the treatment process flow shown in fig. 1, the treatment process of the textile printing and dyeing wastewater comprises the following steps:
a) textile wastewater is firstly collected by a water collecting tank, then suspended matters such as paper scraps, foam paper, plastics, large-particle impurities and the like in water are intercepted by a coarse grating and a fine grating, fine particle impurities are further removed, the textile wastewater enters a grit chamber, inorganic particles with higher density in the water are removed, and the textile wastewater is pumped into a regulating tank to homogenize water quality and water quantity;
b) the PH of the spinning wastewater is high, the spinning wastewater still needs neutralization treatment after homogenization so that the PH meets the requirement of subsequent new material treatment, the effluent of a regulating reservoir enters a wastewater neutralization pond, and H is usually used when the PH of raw water is low2SO4Or HCl neutralization, with desulfurization and ash removal being considered after conditioning;
c) the effluent after the neutralization of the wastewater is pumped into a reaction tank, the treating agent is added according to a certain proportion, and the primary activation and the cyclic treatment of COD are completed in the stage, so that organic matters, toxic dyes and nitrogen and phosphorus removal are guaranteed to be removed;
the basic reaction formula of the treating agent for textile wastewater COD degradation is as follows:
wherein, the concrete operation of adding the treating agent into the reaction tank is as follows:
1) adding a nano enzyme SECMGGA with the volume of 0.05-1% of that of a reaction tank, then adding WRLL with the volume of 0.1-0.8% and BOJF with the volume of 0.01-0.3% of that of the reaction tank, activating the nano enzyme SECMGA by activators WRLL and BOJF for 12-48 h, and also adopting flowing water for 24h multiplied by 1-4 to realize the activation of the nano enzyme SECMGA;
2) after activation is completed, adding the nano enzyme SECMGGA and 0.02-0.08% of WRLL according to 0.005-0.08% of the treated water quantity in daily life, and staying for 6-24 h;
d) pumping raw water into a sedimentation tank for sedimentation, refluxing a bottom material to a reaction tank through a sludge reflux device, and feeding a supernatant liquid into a flocculation tank for subsequent treatment;
e) after the flocculation tank is treated, the supernatant enters a subsequent conventional sewage treatment link for further treatment, the sludge enters a sludge tank for filter pressing, and finally the obtained sludge blocks are transported outside;
f) the effluent treated by the flocculation tank enters a filter tank for temporary storage, is finally sterilized by an ultraviolet disinfection tank, and can be recycled or discharged after being detected to reach the standard;
g) and collecting the residual sludge from the reaction tank and the sediments after the reaction in the flocculation tank by a sludge collecting well, then concentrating the sludge in a sludge concentration workshop, then conveying the sludge to a sludge dewatering workshop for dewatering to obtain a sludge cake, and carrying out outward transportation treatment at regular intervals.
In addition, the dosage of the flocculating agent added into the flocculation tank is 0-2% of the wastewater. The treating agent of the invention can be used without flocculant or only with the dosage of 1/8-1/4 of the original flocculant. The flocculant is one or mixture of polyaluminium chloride and polyaluminium sulfate, and the fine suspended matters, floating matters and colloid substances in water are removed by chemical flocculation and sedimentation.
When the stirring speed in the reaction tank is lower than 200r/min, an aeration device needs to be additionally arranged in the reaction tank. In addition, a PH monitoring device is also arranged in the reaction tank.
Example 6
0.2 percent of treating agent (based on the total amount of raw water) is added into the wastewater reaction tank for pretreatment, the mixture is circularly stirred for 18-24 hours, the process is normally operated according to the process of the embodiment 5, and indexes of main pollutants of various treated effluent are detected, and the results are shown in table 2.
TABLE 2 indexes of pollutants in water treated with the treating agent of the present invention
| Index (I) | Effluent of existing process | The process of the invention produces water |
| CODcr removal Rate (%) | 72 | 97 |
| BOD5 removal (%) | 39 | 100 (undetected BOD5) |
| Metal ion (%) | 10.1 | 2.2 |
| Chroma removal ratio (%) | 80 | 99 |
| Turbidity removal rate (%) | 83 | 96 |
As shown in Table 2, the treatment agent and the related process thereof of the invention can significantly reduce COD, BOD and metal ions which are main pollutants, and have significant effect on the treatment of chromaticity and turbidity. The nano enzyme SECMGGA and the process have obvious textile wastewater treatment effect, each index reaches the national emission standard, the preparation method is simple, the treatment equipment is simplified, and the process has higher economic benefit.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. A treating agent for textile wastewater is characterized by comprising a nanoenzyme SECMGA, an activator WRLL for activating the nanoenzyme SECMGA and an activator BOJF;
the nano enzyme SECMGGA is activated before use, and the activator WRLL and the activator BOJF are respectively required agents for activating the original SECMGGA; the activator WRLL is also a desired agent for activating transition state SECMGA to activated state secmgga;
the nano enzyme SECMGGA is a nano enzyme with oxidation catalytic activity, which is formed by taking a composite material as a preparation carrier and compounding a purified and washed bacillus subtilis and a mild cracking product of excellent activated sludge microorganisms;
the active components of the nano enzyme SECMGGA are mild cracking products of bacillus subtilis, hydrolytic bacteria, fermentation bacteria, hydrogen bacteria, acetic acid bacteria, methane bacteria, sulfate reducing bacteria and anaerobic protozoa in excellent activated sludge;
the activator WRLL adopts dihydric phosphate, and the activator BOJF adopts ammonium salt;
the preparation method of the treating agent for textile wastewater comprises the following steps:
1) the preparation of the composite material with the nano microspherical structure as a carrier comprises the following steps:
a) uniformly mixing 100 g of sodium silicate, 30 g of clay, 30 g of ferric oxide, 30 g of aluminum oxide and 10ml of concentrated hydrochloric acid, and carrying out closed reaction at 120 ℃ for 6 hours;
b) uniformly mixing the reaction product obtained in the step a), introducing nitrogen at 100 ℃, and continuously blowing the nitrogen for 30 minutes;
c) calcining the product obtained in the step b) at high temperature of 650 ℃ in air for 30 minutes;
d) filling the calcined product in the step c) into steam, and hydrating at high temperature and high pressure, wherein the high temperature and high pressure is 3 atmospheres and is 120 ℃;
e) carrying out microwave drying treatment on the hydration product in the step d);
f) ultrasonically crushing the product after the microwave drying treatment, and sieving the product by a 320-mesh sieve to obtain the final required material;
2) collecting bacillus subtilis and activated sludge microorganisms which are separated, purified and cultured for several days, and synthesizing a mild method of freeze thawing and ultrasonic crushing to obtain a cracking active product of the bacteria, washing with pure water for later use, wherein the preparation process is mild and low temperature is kept;
3) dispersing the composite material with the nano micro-spherical structure prepared in the step 1) into a phosphate buffer solution with the pH value of 6-9 to form a low-viscosity solution, wherein the using amount of the composite material is 0.2-2% of the phosphate buffer solution, adding the cracking product obtained in the step 2), the adding amount of the cracking product is 0.1-10% of the phosphate buffer solution, stirring at normal temperature for 1-4 h, performing low-frequency ultrasonic treatment, sieving with a 200-400-mesh sieve, measuring the encapsulation rate, and then loading into specific water treatment equipment.
2. A treatment process for textile wastewater is characterized by comprising the following steps:
a) collecting the textile wastewater by a water collecting tank, intercepting paper scraps, foam paper, plastics and large-particle impurity suspended matters in the water by a coarse grating and a fine grating, further removing fine particle impurities, then entering a grit chamber, removing inorganic particles with higher density in the water, pumping into a regulating tank, and homogenizing the water quality and the water quantity;
b) the pH of the textile wastewater is high, the spinning wastewater needs neutralization treatment after homogenization so that the pH meets the treatment requirement of a treating agent, the effluent of a regulating reservoir enters a wastewater neutralization pond, and H is used when the pH of raw water is low2SO4Or HCl neutralization;
c) the effluent after the neutralization of the wastewater is pumped into a reaction tank, the treating agent of claim 1 is added according to a certain proportion, and the primary activation and the cyclic treatment of COD are completed in the stage, so that the removal of organic matters, toxic dyes, nitrogen and phosphorus is ensured;
d) pumping raw water into a sedimentation tank for sedimentation, refluxing a bottom material to a reaction tank through a sludge reflux device, and feeding a supernatant liquid into a flocculation tank for subsequent treatment;
e) after the flocculation tank is treated, the supernatant enters a subsequent conventional sewage treatment link for further treatment, the sludge enters a sludge tank for filter pressing, and finally the obtained sludge blocks are transported outside;
f) the effluent treated by the flocculation tank enters a filter tank for temporary storage, is finally sterilized by an ultraviolet disinfection tank, and can be recycled or discharged after being detected to reach the standard;
g) and collecting the residual sludge from the reaction tank and the sediments after the reaction in the flocculation tank by a sludge collecting well, then concentrating the sludge in a sludge concentration workshop, then conveying the sludge to a sludge dewatering workshop for dewatering to obtain a sludge cake, and carrying out outward transportation treatment at regular intervals.
3. The treatment process for textile wastewater according to claim 2, wherein in the step c), the treatment agent is fed into the reaction tank by the following specific operations:
1) adding a nano enzyme SECMGGA with the volume of 0.05-1% of that of a reaction tank, then adding WRLL with the volume of 0.1-0.8% and BOJF with the volume of 0.01-0.3% of that of the reaction tank, activating the nano enzyme SECMGA by activators WRLL and BOJF for 12-48 h, and also adopting flowing water for 24h x (1-4) to realize the activation of the nano enzyme SECMGGA;
2) after activation is completed, adding the nano enzyme SECMGGA and 0.02-0.08% of WRLL according to 0.005-0.08% of the treated water amount in daily life, and staying for 6-24 h.
4. The treatment process for the textile wastewater according to claim 2, wherein the dosage of the flocculant added into the flocculation tank is 0-2% of the wastewater.
5. The process for treating textile wastewater according to claim 4, wherein the flocculant is any one of polyaluminium chloride, polyaluminium sulfate or a mixture thereof.
6. The textile wastewater treatment process as set forth in claim 4, wherein an aeration device is added to the reaction tank when the stirring speed in the reaction tank is lower than 200 r/min.
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