CN106745796A - It is prepared by a kind of biological cleaning carrier for wastewater purification - Google Patents
It is prepared by a kind of biological cleaning carrier for wastewater purification Download PDFInfo
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- CN106745796A CN106745796A CN201611029917.XA CN201611029917A CN106745796A CN 106745796 A CN106745796 A CN 106745796A CN 201611029917 A CN201611029917 A CN 201611029917A CN 106745796 A CN106745796 A CN 106745796A
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- attapulgite
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Abstract
The present invention provides a kind of biological cleaning carrier of wastewater treatment, can prepare by the following method：The attapulgite of pretreatment mixes with MBAA in salt solution, and 1 3h is stirred at 50 70 DEG C；Biological macromolecular solution is mixed with above-mentioned mixed solution, above-mentioned solution is heated to 40 60 DEG C, add the activated sludge and 1 3% nanometer ferro manganese composite oxides of attapulgite quality 2 5%, add the CNT stir process of attapulgite quality 2 5% 13 hours, mixing speed is 5 10 turns/min, mixed liquor is stated then up adds cyclodextrin composite solution, stirred 20 40 minutes at 20 30 DEG C, after being placed 30 minutes at 10 DEG C, adjustment temperature is 57 DEG C and keeps carrying out within 40 60 minutes being slowly stirred solidification crosslinking, water is removed into extrusion after said mixture gauze wrapped, rinsed 23 times with 10 20% tannic acid solutions；Said mixture placed 50 70 DEG C of ovens after 8 10 hours, and present invention energy efficient absorption removes the pollutant in waste water, and with strength and stability, elastic effect is good, and abrasion strength resistance is high；Simple production process, easy processing, it is easy to grasp.
Description
The present invention be directed to Application No. 2015104632804, a kind of entitled biology for wastewater purification is net
Change the divisional application of carrier patent application；
Technical field
The invention belongs to field of waste water treatment.
Background technology
With developing rapidly for modern industry and urbanization, water pollution is on the rise.Method of wastewater treatment mainly has chemistry
The precipitation method, electrolysis, ion-exchange, membrane processing method etc., but there is complex process in treatment in these methods, it is cumbersome,
Operating cost is high, produces the defects such as secondary pollution.Develop and the use of new efficient, low toxicity, inexpensive water technology is solution
Certainly one of key of water pollution problems.
Attapulgite (also known as palygorskite) is a kind of natural non-metallic mineral material, is a kind of with chain layer structure
The clay mineral of magnesium silicate containing Shuifu County, typical chemical formula is Si8Mg6O20(OH)2(OH2)4·4H2O, structure belongs to 2:1 type clay pit
Thing, each 2:In 1 unit structure layer, direction overturns at a certain distance on tetrahedron chip angle top, forming layer chain.In tetrahedron
Bar interband forms the passage parallel with chain, and zeolite water and the crystallization water are filled in passage.Attapulgite fibre structure generally comprises three
Individual level：1. basic structural unit is micro- bar-shaped or fibrous monocrystal, and abbreviation rod is brilliant.2. by the list of monocrystalline aggregate parallel
Brilliant beam.3. the aggregation mutually piled up by brilliant beam (including rod is brilliant).The special construction of attapulgite makes it have very big
Specific surface area, physical absorption is very capable.On the other hand, attapulgite carries aspect negative electrical charge, and having in Inter layer adsorption can
So that charge balance, such attapulgite is just provided with stronger ionic adsorption exchange capacity for the cation of exchangeability.
Attapulgite has good suspension in water, although therefore attapulgite has good adsorption capacity, for
For water treatment field, powdered attapulgite cannot be direct plungeed into water using, it is necessary to take at certain method
Reason.At present, preferable processing method is using certain immobilized attapulgite of carrier, then to put into and use in water.There is inventor to exist
A kind of preparation method of absorbent-type macromolecule composite aquogel and products thereof is disclosed in invention【201020595998.1】, utilize
Macromolecule hydrogel makees carrier, immobilized attapulgite, so as to play the suction-operated of attapulgite well.But, this is concavo-convex
The efficiency of rod soil composite aquogel Adsorption of Heavy Metals ion is low, adsorbance is small, cleans difficult after gel adsorption heavy metal ion, and
Gel does not have sensitiveness to the pH value of solution, it is impossible to by the absorption for controlling the pH value of solution to control heavy metal ion
Amount.
A kind of method of a large amount of production gamma-polyglutamic acids, application number：201110216717.6.A kind of γ of disclosure of the invention-
The production method of polyglutamic acid, more particularly to a kind of method of the gamma-polyglutamic acid of a large amount of production high concentrations.Skill of the invention
Art plan explanation is as follows:1. the activation of strain；2. the preparation of seed liquor；3. ferment tank；It is characterized in that by fermentation
During add the fed-batch medium being made up of glucose, ammonium nitrate, CaCl26H2O and FeCl36H2O, make fermentation production rate
1.18g/lh is reached, the purpose of big weight gamma-polyglutamic acid is efficiently prepared so as to reach.
The patent of invention of the arsenic removal material of entitled a kind of nanometer of ferro manganese composite oxides and preparation method thereof, the invention is related to
And a kind of nanometer of arsenic removal material of ferro manganese composite oxides, it is a nanometer ferro manganese composite oxides, the atom of institute's iron content, manganese and oxygen
Than being 4:3:(8~10), wherein manganese are+4 valencys, and iron is+trivalent, and the BET specific surface area of the arsenic removal material is 225~282m2/
G, average grain diameter is 10~20nm.The patent No.：CN201210237752.0.
A kind of devices of magnetic attapulgite wastewater treatment of the such as Chen great Jun, Dong Aijuan, Jiang Zequan：China,
A kind of 201120143921.5 [P] .2011-12-14. this patent devices of magnetic attapulgite wastewater treatment of offer, realize
Dynamic Adsorption of the magnetic attapulgite in water process, and used with pulverulence, eliminate the trouble of granulation.And overcome
Attapulgite difficult separate problem in water phase, without adding the heavy agent of wadding magnetic attapulgite can be made to be isolated from water phase
Come, eliminate the secondary pollution for being possible to bring because adding the heavy agent of wadding.It is that controllable magnetic is concavo-convex to adjust wastewater flow simultaneously
Rod soil and the action time of waste water, optimal adsorption effect is reached, magnetic can also be changed according to the concentration of useless impurities in water recessed
The addition of convex rod soil, it is optimal with the utilization ratio for realizing magnetic attapulgite.
Li Yan China is a kind of for the attapulgite modified and preparation method thereof of sewage disposal：China, 201410383602.X
[P] .2014-12-10. this patented invention is a kind of for the attapulgite modified of sewage disposal, by attapulgite
Addition acrylamide, increased the flocculation reaction to water pollutant；By adding ammonium molybdate, ammonium chloride, cetyl front three
Base ammonium bromide, increased adsorptivity.The attapulgite activation degree is high, and be modified uniform, excellent performance, it is adaptable to waste water control,
Excellent adsorption, does not produce secondary pollution.The filler of coating, rubber is can also be used to simultaneously, and not only suspension is good, and thixotropy is good,
But also with rustless property.
The method of heavy metal in surfactant-modified attapulgite removal percolate：The patent No.
201410744321.2, this patent disclose heavy metal in a kind of surfactant-modified attapulgite removal percolate
Method, heavy metal in percolate is purified using the attapulgite after surfactant-modified.The method energy
Effectively the heavy metal in percolate is adsorbed, its percolate removal efficiency of heavy metals ratio is using only original recessed
The efficiency of convex rod soil improves 30%, and better than traditional adsorption method.
A kind of threonine modified attapulgite earth adsorbing and its .201410453968.X is applied, this patent disclose one
The preparation method of threonine modified attapulgite earth adsorbing is planted, using conventional chemical agent threonine to from unique point
The attapulgite of the good colloidal nature such as scattered, high temperature resistant, salt resistance alkali and adsorption bleaching ability higher is modified, and obtains right
Printing dye and heavy metal wastewater thereby have the attapulgite modified absorption of excellent adsorption capacity.The adsorbent of preparation to dyeing waste water and
Heavy metal wastewater thereby has excellent adsorption capacity, wherein may be up to 650 and 1380mg/ to methylene blue and acid fuchsin saturated extent of adsorption
G, the saturated extent of adsorption to copper and chromium heavy metal wastewater thereby is 143mg/g and 81mg/g.
Bodied ferric sulfate composite flocculation agent application study [J] Informations in the treatment of waste water, 2012 (6)：77-79.
This document proposes a kind of preparation technology of attapulgite-bodied ferric sulfate composite flocculation agent, as a result shows bodied ferric sulfate
With attapulgite modified for composite flocculation agent prepared by raw material has good flocculation and treatment effect to waste water.By to it
CODcr clearances and turbidity removal rate in sanitary wastewater are compared, and obtain the optimal preparation technology bar of composite flocculation agent
Part：Attapulgite heat treatment temperature is 400 DEG C, recombination reaction temperature 50 C, attapulgite dosage 2.0g/L, compound reaction time
Between be 4h.
Primary Study is applied in the preparation of Xu Ling easypro attapulgite clay/carbon composite and its water pollution treatment, is published in
Yangzhou University, 2013. this document are glued with attapulgite clay and sucrose by hydrothermal synthesis reaction as raw material prepares concave convex rod
Soil/carbon composite, can efficient absorption and go in water removal dissolubility micro quantity organic pollutant and toxic heavy metal from
Son.Result display carbon is coated on concave convex rod plane of crystal with the form of amorphous carbon, and hydrophilic organofunctional is occurred in that in material
Group so that its organophilic can have significant improvement.In hydro-thermal reaction, reaction time, temperature, pH and concave convex rod glue
The native absorption property with the ratio of carbon source quality to attapulgite clay/carbon composite has a significant impact.
The synthesis of Chen Hui, Qiang Yinghuai, Yin Hui attapulgites/polyacrylamide hybrid flocculant and its flocculating properties are studied
[J] nonmetallic ores, 2011,34 (2):36-39. this document uses the scattered method of ultrasonic wave, N- methacryls-N '-
Pyrimidine piperazine (MPMP) and potassium peroxydisulfate (K2S2O8) composition redox system under, trigger acrylamide monomer (AM) in acid
There is graft polymerization reaction in attapulgite modified (ATP) surface, generate attapulgite grafted polyacrylamide hybrid flocculant
(ATP/PAM).It is dirty by the real life that sewage and solid content 5.2% are simulated to 2.5wt% kaolin, 5wt% bloodstone
Water process finds that ATP/PAM flocculates, and the alumen ustum sinking speed to be formed is fast, and flocculation time is short, and the sludge quantity of generation is few, very big
It is better than common PAM in the range of addition, the efficiency and ability of sewage disposal can be effectively improved.
The content of the invention
It is an object of the invention to provide a kind of biological cleaning carrier for wastewater treatment, can prepare by the following method：
The attapulgite of pretreatment mixes with MBAA in salt solution, and 1-3h is stirred at 50-70 DEG C；Boiomacromolecule is molten
Liquid mixes with above-mentioned mixed solution, and above-mentioned solution is heated into 40-60 DEG C, adds the activated sludge of attapulgite quality 2-5%
With the nanometer ferro manganese composite oxides of 1-3%, the CNT stir process of attapulgite quality 2-5% is added 1-3 hours, stir
Speed is mixed for 5-10 turns/min.Mixed liquor is stated then up and adds cyclodextrin composite solution, stirred 20-40 minutes at 20-30 DEG C,
After being placed 30 minutes at 10 DEG C, adjustment temperature is -5-7 DEG C and keeps carrying out within 40-60 minutes being slowly stirred solidification crosslinking, will be above-mentioned mixed
Water is removed in extrusion after compound gauze wrapped.Rinsed 2-3 times with 10-20% tannic acid solutions；Said mixture places 50-70 DEG C of baking
After case is processed 8-10 hours.
Preferably in the oven stage：Mixture places 50-70 DEG C and is warmed up to 85 DEG C of guarantors after oven 8-10 hours
Hold cool within 2-5 minutes 50-70 DEG C keep 1 hour.
The attapulgite of pretreatment and the ratio of MBAA are 10:4-8.
The salt solution is KCL and polyvinyl alcohol solution, and KCL mass concentrations are 2-5%, and polyvinyl alcohol mass concentration is
3-8%.
The preparation method of CNT is：Methanol aqueous solution weight is added in volume ratio is for the methanol aqueous solution of 10-25%
The CNT of 20-30% is measured, immersion treatment 30-50 minutes, sediment was collected in then centrifugation.
The addition of the biological macromolecular solution is 2-8 times of attapulgite quality.
The preparation method of biological macromolecular solution is as follows：
The polyglutamic acid zymotic fluid that fermented and cultured is obtained is with Ganoderma Lucidum fermented and cultured liquid according to 1:6-8 mixes, then
Heating is concentrated to the 10-40% of mixed volume.
The polyglutamic acid zymotic fluid is conventionally cultivated with Ganoderma Lucidum fermentation culture.
The concentration of activated sludge is 3000-5000mg/L；
Containing weight than the cyclodextrin and the boric acid of 35-45% for 8-15% in cyclodextrin composite solution.
The pretreatment of attapulgite.The attapulgite of mesh~1000 mesh of particle diameter 300, be by attapulgite addition volumetric concentration
The methanol solution of 15-35%, control temperature is in 45-50 DEG C of Electric Pulse Treatment；Then precipitation takes supernatant liquor after 1-2 hours, on
Continue 500rpm centrifugation 1min in layer clear liquid plus after a small amount of distilled water is well mixed, then take its supernatant liquor, so wash repeatedly
After washing supernatant liquor 3~5 times, finally it is centrifuged with 2000-3000, takes its precipitation, 24h is vacuum dried at 90 DEG C, is ground
Mesh~400 mesh sieve the sieving of particle diameter 200 is pressed after mill, attapulgite is collected stand-by.
Electric Pulse Treatment condition is as follows：High-voltage pulse is processed 5-10 minutes；High-pressure pulse electric (PEF) processing parameter is preferable
Ground is：Electric-field intensity 20-40KV/cm, burst length 400-600 μ S, pulse frequency 200-300Hz.
Beneficial effect：
Compared with prior art, its remarkable advantage is the present invention：(1) the inventive method gained adsorbent energy efficient absorption is clear
Except the pollutant in waste water, such as heavy metal ion, dyestuff and petrochemical industry pollutant.(2) crosslinking adsorbent be with intensity and
Stability, will not cause secondary pollution to water body, and adsorbent elastic effect is good, and abrasion strength resistance is high；(3) raw material sources are rich
Richness, simple production process, raw material easy processing, technique is easy to grasp.
Embodiment 1
It is an object of the invention to provide a kind of biological cleaning carrier for wastewater treatment.Technical scheme is as follows:
The preparation method of the biological cleaning carrier for wastewater treatment is as follows：
The attapulgite of pretreatment mixes with MBAA in salt solution, and 2h is stirred at 60 DEG C；By biological macromolecular solution with
Above-mentioned mixed solution mixing, 50 DEG C are heated to by above-mentioned solution, add the activated sludge of attapulgite quality 4% and 2% receive
Rice ferro manganese composite oxides, add the CNT stir process of attapulgite quality 4% 2 hours, and mixing speed is 8 turns/
min.Mixed liquor is stated then up and adds cyclodextrin composite solution, stirred 30 minutes at 25 DEG C, after being placed 30 minutes at 10 DEG C, adjust
Whole temperature is that -7 DEG C of holdings carry out being slowly stirred solidification crosslinking for 50 minutes, and extrusion after said mixture gauze wrapped is gone into water.
Rinsed 3 times with 15% tannic acid solution；Said mixture placed 60 DEG C of ovens after 10 hours.
The attapulgite of pretreatment and the ratio of MBAA are：10:6.
The salt solution is KCL and polyvinyl alcohol solution, and KCL mass concentrations are 4%, and polyvinyl alcohol mass concentration is
5%.
The preparation method of CNT is：Methanol aqueous solution weight is added in the methanol aqueous solution that volume ratio is 15%
25% CNT, immersion treatment 30-50 minutes, deposit was collected in then centrifugation.
The addition of the biological macromolecular solution is 6 times of attapulgite quality.
The preparation method of biological macromolecular solution is as follows：
The polyglutamic acid zymotic fluid that fermented and cultured is obtained is with Ganoderma Lucidum fermented and cultured liquid according to 1:7 mixing, then adopt
The 30% of mixed volume is concentrated to concentrator.
The polyglutamic acid zymotic fluid is conventionally cultivated with Ganoderma Lucidum fermentation culture.
The concentration of activated sludge is 4000mg/L；
Boric acid containing 14% cyclodextrin and 42% in cyclodextrin composite solution.
The pretreatment of attapulgite.The attapulgite of mesh~1000 mesh of particle diameter 300, be by attapulgite addition volumetric concentration
25% methanol solution, control temperature is in 45-50 DEG C of Electric Pulse Treatment；Then precipitation takes supernatant liquor, supernatant liquor after 1 hour
In plus continue 500rpm centrifugation 1min after a small amount of distilled water is well mixed, then take its supernatant liquor, such cyclic washing upper strata
After clear liquid 3~5 times, finally it is centrifuged with 2200, takes its precipitation, 24h is vacuum dried at 90 DEG C, particle diameter is pressed after grinding
200 mesh~300 mesh sieve sievings, collect attapulgite stand-by.
Electric Pulse Treatment condition is as follows：High-voltage pulse is processed 6 minutes；High-pressure pulse electric (PEF) processing parameter is preferably
For：Electric-field intensity 30KV/cm, burst length 500 μ S, pulse frequency 200Hz.
Embodiment 2
It is an object of the invention to provide a kind of biological cleaning carrier for wastewater treatment.Technical scheme is as follows:
The preparation method of the biological cleaning carrier for wastewater treatment is as follows：
The attapulgite of pretreatment mixes with MBAA in salt solution, and 3h is stirred at 50 DEG C；By biological macromolecular solution with
Above-mentioned mixed solution mixing, 40 DEG C are heated to by above-mentioned solution, add the activated sludge of attapulgite quality 5% and 1% receive
Rice ferro manganese composite oxides, add the CNT stir process of attapulgite quality 5% 1 hour, and mixing speed is 5 turns/
min.Mixed liquor is stated then up and adds cyclodextrin composite solution, stirred 40 minutes at 20 DEG C, after being placed 30 minutes at 10 DEG C, adjust
Whole temperature is that -5 DEG C of holdings carry out being slowly stirred solidification crosslinking for 60 minutes, and extrusion after said mixture gauze wrapped is gone into water.
Rinsed 2 times with 10% tannic acid solution；Said mixture placed 55 DEG C of ovens after 10 hours.
The attapulgite of pretreatment and the ratio of MBAA are：10:4.
The salt solution is KCL and polyvinyl alcohol solution, and KCL mass concentrations are 2%, and polyvinyl alcohol mass concentration is
3%.
The preparation method of CNT is：Methanol aqueous solution weight is added in the methanol aqueous solution that volume ratio is 10%
Deposit is collected in 30% CNT, immersion treatment 30 minutes, then centrifugation.
The addition of the biological macromolecular solution is 8 times of attapulgite quality.
The preparation method of biological macromolecular solution is as follows：
The polyglutamic acid zymotic fluid that fermented and cultured is obtained is with Ganoderma Lucidum fermented and cultured liquid according to 1:8 mixing, then adopt
The 10% of mixed volume is concentrated to concentrator.
The polyglutamic acid zymotic fluid is conventionally cultivated with Ganoderma Lucidum fermentation culture.
The concentration of activated sludge is 5000mg/L；
Boric acid containing 15% cyclodextrin and 45% in cyclodextrin composite solution.
The pretreatment of attapulgite.The attapulgite of mesh~1000 mesh of particle diameter 300, be by attapulgite addition volumetric concentration
35% methanol solution, control temperature is in 45-50 DEG C of Electric Pulse Treatment；Then precipitation takes supernatant liquor, supernatant liquor after 1 hour
In plus continue 500rpm centrifugation 1min after a small amount of distilled water is well mixed, then take its supernatant liquor, such cyclic washing upper strata
After clear liquid 3~5 times, finally it is centrifuged with 2000, takes its precipitation, 24h is vacuum dried at 90 DEG C, particle diameter is pressed after grinding
200 mesh~400 mesh sieve sievings, collect attapulgite stand-by.
Electric Pulse Treatment condition is as follows：High-voltage pulse is processed 10 minutes；High-pressure pulse electric (PEF) processing parameter is preferably
For：Electric-field intensity 40KV/cm, burst length 400 μ S, pulse frequency 300Hz.
Embodiment 3
It is an object of the invention to provide a kind of biological cleaning carrier for wastewater treatment.Technical scheme is as follows:
The preparation method of the biological cleaning carrier for wastewater treatment is as follows：
The attapulgite of pretreatment mixes with MBAA in salt solution, and 1h is stirred at 50 DEG C；By biological macromolecular solution with
Above-mentioned mixed solution mixing, 40 DEG C are heated to by above-mentioned solution, add the activated sludge of attapulgite quality 2% and 1% receive
Rice ferro manganese composite oxides, add the CNT stir process of attapulgite quality 2-5% 1 hour, and mixing speed is 5 turns/
min.Mixed liquor is stated then up and adds cyclodextrin composite solution, stirred 20 minutes at 20 DEG C, after being placed 30 minutes at 10 DEG C, adjust
Whole temperature is that -7 DEG C of holdings carry out being slowly stirred solidification crosslinking for 60 minutes, and extrusion after said mixture gauze wrapped is gone into water.
Rinsed 2 times with 10% tannic acid solution；Mixture places 70 DEG C of ovens and 85 DEG C of holdings cooling in 5 minutes is warmed up to after 8 hours
Kept for 1 hour to 70 DEG C.
The attapulgite of pretreatment and the ratio of MBAA are：10:4.
The salt solution is KCL and polyvinyl alcohol solution, and KCL mass concentrations are 2%, and polyvinyl alcohol mass concentration is
3%.
The preparation method of CNT is：Methanol aqueous solution weight is added in the methanol aqueous solution that volume ratio is 10%
Deposit is collected in 20% CNT, immersion treatment 50 minutes, then centrifugation.
The addition of the biological macromolecular solution is 4 times of attapulgite quality.
The preparation method of biological macromolecular solution is as follows：
The polyglutamic acid zymotic fluid that fermented and cultured is obtained is with Ganoderma Lucidum fermented and cultured liquid according to 1:7 mixing, then adopt
The 10% of mixed volume is concentrated to concentrator.
The polyglutamic acid zymotic fluid is conventionally cultivated with Ganoderma Lucidum fermentation culture.
The concentration of activated sludge is 3000mg/L；
Boric acid containing 8% cyclodextrin and 35% in cyclodextrin composite solution.
The pretreatment of attapulgite.The attapulgite of mesh~500 mesh of particle diameter 300, be by attapulgite addition volumetric concentration
25% methanol solution, control temperature is in 45-50 DEG C of Electric Pulse Treatment；Then precipitation takes supernatant liquor after 1-2 hours, and upper strata is clear
Continue 500rpm centrifugation 1min in liquid plus after a small amount of distilled water is well mixed, its supernatant liquor is then taken, on such cyclic washing
After layer clear liquid 3~5 times, finally it is centrifuged with 2000-3000, takes its precipitation, 24h is vacuum dried at 90 DEG C, after grinding
Sieved by mesh~400 mesh sieve of particle diameter 200, collect attapulgite stand-by.
Electric Pulse Treatment condition is as follows：High-voltage pulse is processed 5 minutes；High-pressure pulse electric (PEF) processing parameter is preferably
For：Electric-field intensity 20KV/cm, burst length 400 μ S, pulse frequency 300Hz.
The preparation method of polyglutamic acid zymotic fluid can also be adopted with the following method：
Using bacillus licheniformis (Bacillus licheniformis).
The fermentation process is：30L fermentation tanks liquid amount is 15L, uses above-mentioned fermentation medium, the inoculum concentration of seed liquor
It is 1.0%~15.0%, 30~40 DEG C of fermentation temperature, fermentation time 24~72 hours, 0.5~2.0vvm of ventilation, dissolved oxygen 1~
50%, 200~400rpm of rotating speed.
Fermentation medium composition is (g/L)：Glucose 80, sodium glutamate 80, ammonium nitrate 18, NaCl 10, MgSO4·
6H2O0.5, CaCl2·6H2O 1.0, FeSO4·6H2O 0.01, arginine 0.44, histidine 0.26. threonines 0.5, methionine
0.4, choline 0.1, glutamine 0.5, pyridoxol 0.001.
Using effect is tested：
Experiment 1
5L is added to this adsorbent 20g contain Pb:150mg/L and Zn:260mg/L,Ni2+:In 90mg/L waste water, 45 points
The ion concentration of Zhong Houyong inductance coupled plasma optical emission spectrographic determination heavy metal in waste water is Pb:13.3mg/L and Zn:
12.6mg/L.Ni2+:6.5mg/L
Experiment 2
50L is added to this adsorbent 50g contain Ni2+:850mg/L and Cu2+:100mg/L it is useless in, used after 30 minutes
The ion concentration that inductively coupled plasma emission spectrography determines heavy metal in waste water is Ni2+:5.8mg/L and Cu2+:
3.3mg/L。
Experiment 3
150L is added to this adsorbent 100g contain composite waste that 125mg/L is containing peacock green and crystal violet concentration
In, vibration absorption 30 minutes, it is 95% and 97% to measure percent of decolourization.
Experiment 4
It is added in the wastewater containing phenol that 100L contains 60mg/L with this adsorbent 60g, 0.6h uses AAS after using
It is 1.5mg/L to determine phenol in wastewater concentration.
Claims (7)
1. a kind of biological cleaning support preparation method for wastewater treatment, as follows：
The attapulgite of pretreatment mixes with MBAA in salt solution, and 3h is stirred at 50 DEG C；By biological macromolecular solution with it is above-mentioned
Mixed solution mixes, and above-mentioned solution is heated into 40 DEG C, adds the activated sludge and 1% Nanoscale Iron of attapulgite quality 5%
Manganese composite oxide, adds the CNT stir process of attapulgite quality 5% 1 hour, and mixing speed is 5 turns/min.So
Backward above-mentioned mixed liquor adds cyclodextrin composite solution, is stirred 40 minutes at 20 DEG C, after being placed 30 minutes at 10 DEG C, adjusts temperature
For -5 DEG C keep carrying out within 60 minutes being slowly stirred solidification crosslinking, water is removed into extrusion after said mixture gauze wrapped.With 10%
Tannic acid solution is rinsed 2 times；Said mixture placed 55 DEG C of ovens after 10 hours.
2. the biological cleaning support preparation method of wastewater treatment, the concave convex rod of the pretreatment are used for according to claim 1
Soil is with the ratio of MBAA：10:4.
3. the biological cleaning support preparation method of wastewater treatment is used for according to claim 1, and the salt solution is KCL and poly- second
Enol mixed solution, KCL mass concentrations are 2%, and polyvinyl alcohol mass concentration is 3%.
4. the biological cleaning support preparation method of wastewater treatment, the preparation of the CNT are used for according to claim 1
Method is：The CNT of methanol aqueous solution weight 30%, immersion treatment are added in the methanol aqueous solution that volume ratio is 10%
30 minutes, deposit was collected in then centrifugation.
5. the biological cleaning support preparation method of wastewater treatment, the biological macromolecular solution are used for according to claim 1
Addition be 8 times of attapulgite quality.
6. the biological cleaning support preparation method of wastewater treatment, the biological macromolecular solution are used for according to claim 1
Preparation method it is as follows：The polyglutamic acid zymotic fluid that fermented and cultured is obtained is with Ganoderma Lucidum fermented and cultured liquid according to 1:8 mixing,
Then the 10% of mixed volume is concentrated to using concentrator.
7. the biological cleaning support preparation method of wastewater treatment, the concentration of the activated sludge are used for according to claim 1
It is 5000mg/L；Boric acid containing 15% cyclodextrin and 45% in cyclodextrin composite solution；The pretreatment of attapulgite.Particle diameter
The attapulgite of 300 mesh~1000 mesh, by the methanol solution that attapulgite addition volumetric concentration is 35%, control temperature is in 45-
50 DEG C of Electric Pulse Treatments；Then precipitation takes supernatant liquor after 1 hour, continues in supernatant liquor plus after a small amount of distilled water is well mixed
500rpm is centrifuged 1min, then takes its supernatant liquor, after such cyclic washing supernatant liquor 3~5 times, finally with 2000 carry out from
The heart is separated, and takes its precipitation, and 24h is vacuum dried at 90 DEG C, and the mesh~400 mesh sieve sieving of particle diameter 200 is pressed after grinding, collects concave convex rod
Soil is stand-by；Electric Pulse Treatment condition is as follows：High-voltage pulse is processed 10 minutes；High-pressure pulse electric (PEF) processing parameter is preferably
For：Electric-field intensity 40KV/cm, burst length 400 μ S, pulse frequency 300Hz.
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| CN110420618A (en) * | 2019-07-24 | 2019-11-08 | 生态环境部南京环境科学研究所 | A kind of preparation method of novel attapulgite soil and its method for handling heavy metal wastewater thereby |
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