CN110127803A - A kind of preparation method of flocculant - Google Patents
A kind of preparation method of flocculant Download PDFInfo
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- CN110127803A CN110127803A CN201910462801.2A CN201910462801A CN110127803A CN 110127803 A CN110127803 A CN 110127803A CN 201910462801 A CN201910462801 A CN 201910462801A CN 110127803 A CN110127803 A CN 110127803A
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- 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
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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
- 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
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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Abstract
The present invention relates to a kind of preparation methods of flocculant, belong to flocculant preparation technical field.The present invention is raw material using phoenix tree leaf, Chinese parasol leaf active carbon is prepared using the technique that phosphoric acid activation and microwave irradiation combine, it increases to the effect of catching of the adsorption net of pollutant, by Chinese parasol leaf active carbon and silt micelle crushed material heating stirring, obtain modified Chinese parasol leaf matrix activated carbon, modified Chinese parasol leaf matrix activated carbon is mixed with the culture containing microbe metabolite, so that microbe metabolite is adsorbed into the porous structure of modified Chinese parasol leaf matrix activated carbon, fold in modified Chinese parasol leaf matrix activated carbon hole generates physics anchorage effect to microbe metabolite, so that microbe metabolite is combined together with modified Chinese parasol leaf matrix activated carbon, flocculant of the present invention is enhanced to bacterium in water body, virus, the removal ability of all kinds of heavy metal ion etc., the nutriment for leading to water eutrophication is effectively reduced in water body, therefore The present invention has broad application prospects.
Description
Technical field
The present invention relates to a kind of preparation methods of flocculant, belong to flocculant preparation technical field.
Background technique
Flocculant is a kind of coloration and turbidity reduced in water body by flocculating setting, removes the bacterium in water body and virus
Substance.All kinds of heavy metal substances, macromolecule organic and the radioactive substance etc. in water body can also be removed, is effectively reduced
Lead to the nutriment of water eutrophication in water body.Flocculation technique is commonly applied to steel, metallurgy, printing and dyeing, weaving, food, makes
Water supply and sewage treatment field in all kinds of industries such as paper.The method has many advantages, such as simple process, high efficiency, low cost.
Common flocculant can be generally divided into four major class: inorganic flocculating agent, organic polymer coargulator, microbiology class wadding
Solidifying agent and composite flocculation agent.
Every one kind flocculant has its application range and pros and cons end.If a large amount of example show by two kinds or two kinds with
On flocculant under certain condition, novel flocculant product is prepared by method that is modified or being copolymerized, then can be real
The complementation of existing advantage, while promoting the effect of settling of flocculation process.Therefore, composite flocculation agent becomes that application prospect is wide to be applicable in
The general name of the big processing of range novel flocculant at low cost.
Composite flocculation agent can be divided into four major class: inorganic-inorganic complex class flocculant, organic-organic composite class flocculant,
Inorganic-organic hybrid class flocculant and biological complex class flocculant.
Inorganic-inorganic composite flocculant is mainly that two kinds of inorganic flocculating agents combine at present, on the basis of molysite and aluminium salt
Upper introducing highly charged ion, hydroxyl or phosphate radical etc., improve its charge neutrality, bridge formation and volume and sweep ability, to improve coagulation effect.
Inorganic-organic hybrid class flocculant is to combine inorganic polymer flocculant and organic polymer coargulator, while playing two
Person's advantage introduces the hydrophilic radical with-OH ,-NH ,-COO- etc., the modified compound wadding of macromolecule in composite flocculation agent
Solidifying agent has the various structures feature such as chain or ring-type, to the sewage treatment strong applicability of various complicated ingredients, decolorizing effect
Good, flocculant usage is few, and sinking speed is fast.It is acted on by adsorption bridging, makes pollutant removal.Organic-organic composite class flocculation
Agent is to combine the organic flocculant of identical or different classification, such as by artificial synthesized organic polymer class flocculant and naturally
Organic polymer class flocculant carry out it is compound, enhance flocculation treatment effect by the synergistic effect between flocculant.Naturally
Macromolecule organic flocculating agent mainly has: starch, chitosan, lignin, cellulose, natural plant gum etc.；Artificial synthesized macromolecule is organic
Flocculant has: acrylic acid, the copolymer of acrylamide and its modification derivant etc..
Microorganism complex class flocculant be by microorganism group at, not degradable solid suspension aggregation in water body can be made
The special macromolecule metabolite of sedimentation.Microorganism complex class flocculant is broadly divided into: microorganism-inorganic compounding class flocculation
Agent, microorganism-organic composite class flocculant, microorganism-microorganism complex class flocculant.Such flocculant has flocculation activity
It is high, the features such as have a wide range of application, be without secondary pollution, the concern because of its advantage by more and more researchers.And due to micro- life
The disadvantages of high production cost, the yield of object flocculant are small, the stability of storage is poor, application range is narrow, real practical application
It is few, also all rest on the conceptual phase in laboratory mostly.
Summary of the invention
The technical problems to be solved by the invention: the removal of pollutant in water body is imitated for flocculant at present on the market
The not ideal enough problem of fruit, provides a kind of preparation method of flocculant.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
(1) starch is added in deionized water, 2~4h is stirred with 300~400r/min revolving speed under 30~40 DEG C of water-baths, must be formed sediment
Powder solution；
(2) sucrose solution, glucose solution, sodium acetate, urea are added in starch solution, with 200~300r/min under room temperature
Revolving speed stirs 10~20min, then 20~30min of high pressure steam sterilization, obtains culture medium；
(3) rhodococcus erythropolis is put into culture medium, is cultivated 6~8 days at 30~40 DEG C, obtains rhodococcus erythropolis culture；
(4) modified phoenix tree leaf matrix activated carbon is added in rhodococcus erythropolis culture, with 150~200r/min stirring 15 under room temperature
~20min, obtains mixture；
(5) it pours the mixture into reaction kettle, 20~30min is stirred to react at 20~30 DEG C, then be placed in baking oven, 50~
Dry 1~2h, obtains flocculant under conditions of 60 DEG C.
The deionized water, sucrose solution, starch, glucose solution, sodium acetate, urea, modified Chinese parasol tree phyllopodium activity
The parts by weight of charcoal are 20~30 parts of deionized waters, 10~12 parts of mass fractions are 30% sucrose solution, 8~10 parts of starch, 15~
Glucose solution, 8~10 part sodium acetates, 9~10 part urea, 60~80 part modified Chinese parasol tree phyllopodium of 20 parts of mass fractions for 30%
Active carbon.
Autoclaved condition described in step (2) is 0.11~0.13MPa, 110~120 DEG C.
The specific preparation step of modification phoenix tree leaf matrix activated carbon described in step (4) are as follows:
(1) silt micelle is placed in pulverizer, 15~20min is crushed under room temperature, obtains silt micelle crushed material；
(2) phoenix tree leaf active carbon is mixed with silt micelle crushed material and is placed in reaction kettle, at 40~50 DEG C with 300~
400r/min revolving speed is stirred to react 30~40min, obtains modified phoenix tree leaf matrix activated carbon.
The parts by weight of the phoenix tree leaf active carbon, silt micelle are 40~60 parts of phoenix tree leaf active carbons, 20~30 parts of mud
Husky micelle.
The specific preparation step of phoenix tree leaf active carbon described in step (2) are as follows:
(1) phoenix tree leaf powder is placed in copper-bath, under room temperature impregnate 20~for 24 hours, filter, take filter cake, be placed in 30~40
Dry 40~60min at DEG C, the phoenix tree leaf powder that obtains that treated；
(2) by treated, phoenix tree leaf powder is placed in microwave device, is irradiated 15~20min, is stood 2~4h under room temperature, obtain Chinese parasol tree
Paulownia leaf active carbon,
The parts by weight of the phoenix tree leaf powder, copper-bath are 40~60 parts of phoenix tree leaf powder, 80~120 parts of mass concentrations
For 20% copper-bath.
Irradiation frequency described in step (2) is 2000~2500MHz.
The specific preparation step of phoenix tree leaf powder described in step (1) are as follows:
(1) phoenix tree leaf is placed in dehydrated alcohol, 30~40min is impregnated under room temperature, obtains the phoenix tree leaf of alcohol treatment；
(2) phoenix tree leaf of alcohol treatment is placed in deionized water, impregnates to boil under 30~40 DEG C of water-baths and wash 40~60min, obtains
Boil the phoenix tree leaf washed；
(3) phoenix tree leaf washed will be boiled and be placed at 40~50 DEG C dry 1~2h, obtain dry phoenix tree leaf；
(4) dry phoenix tree leaf is placed in pulverizer, 20~30min is crushed under room temperature, crossed 80~100 meshes, obtain phoenix tree leaf
Powder.
The phoenix tree leaf, dehydrated alcohol, deionized water parts by weight be 60~80 parts of phoenix tree leafs, 120~160 parts it is anhydrous
Ethyl alcohol, 120~160 parts of deionized waters.
The present invention is compared with other methods, and advantageous effects are:
It is raw material that the present invention uses phoenix tree leaf first, prepares Chinese parasol leaf using the technique that phosphoric acid activation and microwave irradiation combine
Active carbon, Chinese parasol leaf active carbon have porous network structure, and stability is good and porosity is big, increase flocculant and water body
Contact area increases so that the contact area of pollutant increases in flocculant and water body to the effect of catching of the adsorption net of pollutant,
By Chinese parasol leaf active carbon and silt micelle crushed material heating stirring, so that silt micelle enters the hole of Chinese parasol leaf active carbon
In gap, active group of the silt micelle surface with a large amount of active groups and Chinese parasol leaf activated carbon surface interacts, and generates
Hydrogen Binding Adsorption power obtains modified Chinese parasol leaf matrix activated carbon, mud so that silt micelle is combined together with Chinese parasol leaf active carbon
Husky micelle is negatively charged, and the heavy metal ion in water body has positive charge, after flocculant of the invention is put into water body, flocculation
The positive charge of the negative electrical charge and Heavy Metals in Waters ion of silt glue institute band attracts each other in agent, generates bridging action, so that this
Inventing flocculant obtained has suction-operated to heavy metal ion, by it is heavy metal ion adsorbed into flocculant to remove in water body
Heavy metal ion, while so that flocculant produced by the present invention has excellent stability, to the adsorption energy of pollutant in water body
Power is splendid, then microorganism is cultivated in the culture medium containing nutriment, contains microbe metabolite in collected culture,
Contain a large amount of anionic groups in microbe metabolite, can be with adsorbing metal ions, and contain more adsorption activity group,
There can be flocculation activity with bacterium, the virus etc. in adsorbed water body, microbe metabolite, there is good flocculation sedimentation performance, pacify
Atoxic is readily biodegradable, and will not bring secondary pollution to environment, by modified Chinese parasol leaf matrix activated carbon and contains microorganism
The culture of metabolin mixes so that microbe metabolite is adsorbed into the porous structure of modified Chinese parasol leaf matrix activated carbon, modified
Fold in Chinese parasol leaf matrix activated carbon hole generates physics anchorage effect to microbe metabolite so that microbe metabolite with
Modified Chinese parasol leaf matrix activated carbon is combined together, and enhances flocculant of the present invention to bacterium, virus, all kinds of heavy metals in water body
The removal ability of ion etc., being effectively reduced in water body leads to the nutriment of water eutrophication, therefore the present invention is with wide
Application prospect.
Specific embodiment
According to parts by weight, respectively weigh 60~80 parts of phoenix tree leafs, 120~160 parts of dehydrated alcohols, 120~160 parts go from
Sub- water, phoenix tree leaf is placed in dehydrated alcohol, and 30~40min is impregnated under room temperature, the phoenix tree leaf of alcohol treatment is obtained, by alcohol treatment
Phoenix tree leaf be placed in deionized water, impregnated under 30~40 DEG C of water-baths and boil and washes 40~60min, the phoenix tree leaf washed must be boiled, will be boiled
The phoenix tree leaf washed is placed at 40~50 DEG C dry 1~2h, obtains dry phoenix tree leaf, dry phoenix tree leaf is placed in pulverizer,
20~30min is crushed under room temperature, 80~100 meshes is crossed, obtains phoenix tree leaf powder, then according to parts by weight, weighs 40~60 respectively
The copper-bath that part phoenix tree leaf powder, 80~120 parts of mass concentrations are 20%, phoenix tree leaf powder is placed in copper-bath,
Impregnate 20 under room temperature~for 24 hours, it filters, takes filter cake, be placed at 30~40 DEG C dry 40~60min, the phoenix tree leaf powder that obtains that treated
End, by treated, phoenix tree leaf powder is placed in microwave device, 15~20min is irradiated under the frequency of 2000~2500MHz, often
Temperature is lower to stand 2~4h, obtains phoenix tree leaf active carbon, then according to parts by weight, weigh respectively 40~60 parts of phoenix tree leaf active carbons, 20~
30 parts of silt micelles, silt micelle is placed in pulverizer, and 15~20min is crushed under room temperature, silt micelle crushed material is obtained, by Chinese parasol tree
Paulownia leaf active carbon is mixed with silt micelle crushed material and is placed in reaction kettle, with 300~400r/min revolving speed at 40~50 DEG C
It is stirred to react 30~40min, obtains modified phoenix tree leaf matrix activated carbon, then according to parts by weight, weighs 20~30 parts of deionizations respectively
The glucose that sucrose solution that water, 10~12 parts of mass fractions are 30%, 8~10 parts of starch, 15~20 parts of mass fractions are 30%
Solution, 8~10 parts of sodium acetates, 9~10 parts of urea, 60~80 parts of modified phoenix tree leaf matrix activated carbons, are added deionized water for starch
In, 2~4h is stirred with 300~400r/min revolving speed under 30~40 DEG C of water-baths, starch solution is obtained, by sucrose solution, glucose
Solution, sodium acetate, urea are added in starch solution, stir 10~20min under room temperature with 200~300r/min revolving speed, then be placed in
0.11~0.13MPa, 20~30min of high pressure steam sterilization under conditions of 110~120 DEG C, obtain culture medium, rhodococcus erythropolis are put
Enter in culture medium, cultivated 6~8 days under conditions of 30~40 DEG C, obtain rhodococcus erythropolis culture, by modified Chinese parasol tree phyllopodium activity
Charcoal is added in rhodococcus erythropolis culture, stirs 15~20min under room temperature with 150~200r/min, mixture is obtained, by mixture
It pours into reaction kettle, 20~30min is stirred to react at 20~30 DEG C, then be placed in baking oven, done under conditions of 50~60 DEG C
Dry 1~2h, obtains flocculant.
Example 1
Starch is added in deionized water, 2h is stirred with 300r/min revolving speed under 30 DEG C of water-baths, obtains starch solution；Sucrose is molten
Liquid, glucose solution, sodium acetate, urea are added in starch solution, stir 10min, then high pressure under room temperature with 200r/min revolving speed
Steam sterilizing 20min, obtains culture medium；Rhodococcus erythropolis is put into culture medium, is cultivated 6 days at 30 DEG C, obtains rhodococcus erythropolis
Culture；Modified phoenix tree leaf matrix activated carbon is added in rhodococcus erythropolis culture, 15min is stirred with 150r/min under room temperature,
Obtain mixture；It pours the mixture into reaction kettle, 20min is stirred to react at 20 DEG C, then be placed in baking oven, in 50 DEG C of condition
Lower dry 1h, obtains flocculant.Deionized water, sucrose solution, starch, glucose solution, sodium acetate, urea, modified Chinese parasol tree phyllopodium
The parts by weight of active carbon are 20 parts of deionized waters, 10 parts of mass fractions are 30% sucrose solution, 8 parts of starch, 15 parts of mass fractions
For 30% glucose solution, 8 parts of sodium acetates, 9 parts of urea, 60 parts of modified phoenix tree leaf matrix activated carbons.Autoclaved condition is
0.11MPa,110℃.The specific preparation step of modified phoenix tree leaf matrix activated carbon are as follows: silt micelle is placed in pulverizer, room temperature
Lower crushing 15min obtains silt micelle crushed material；Phoenix tree leaf active carbon is mixed with silt micelle crushed material and is placed on reaction kettle
In, 30min is stirred to react with 300r/min revolving speed at 40 DEG C, obtains modified phoenix tree leaf matrix activated carbon.Phoenix tree leaf active carbon, silt
The parts by weight of micelle are 40 parts of phoenix tree leaf active carbons, 20 parts of silt micelles.The specific preparation step of phoenix tree leaf active carbon are as follows: by Chinese parasol tree
Paulownia leaf powder is placed in copper-bath, and 20h is impregnated under room temperature, is filtered, is taken filter cake, is placed at 30 DEG C dry 40min, must be handled
Phoenix tree leaf powder afterwards；By treated, phoenix tree leaf powder is placed in microwave device, is irradiated 15min, is stood 2h under room temperature, obtain Chinese parasol tree
Paulownia leaf active carbon, phoenix tree leaf powder, copper-bath parts by weight be 40 parts of phoenix tree leaf powder, 80 parts of mass concentrations are 20%
Copper-bath.Irradiation frequency is 2000MHz.The specific preparation step of phoenix tree leaf powder are as follows: phoenix tree leaf is placed in dehydrated alcohol
In, 30min is impregnated under room temperature, obtains the phoenix tree leaf of alcohol treatment；The phoenix tree leaf of alcohol treatment is placed in deionized water, at 30 DEG C
It impregnates to boil under water-bath and washes 40min, the phoenix tree leaf washed must be boiled；The phoenix tree leaf washed will be boiled and be placed at 40 DEG C dry 1h, obtain dry Chinese parasol tree
Paulownia leaf；Dry phoenix tree leaf is placed in pulverizer, 20min is crushed under room temperature, 80 meshes is crossed, obtains phoenix tree leaf powder.Phoenix tree leaf,
Dehydrated alcohol, deionized water parts by weight be 60 parts of phoenix tree leafs, 120 parts of dehydrated alcohols, 120 parts of deionized waters.
Example 2
Starch is added in deionized water, 3h is stirred with 350r/min revolving speed under 35 DEG C of water-baths, obtains starch solution；Sucrose is molten
Liquid, glucose solution, sodium acetate, urea are added in starch solution, stir 15min, then high pressure under room temperature with 250r/min revolving speed
Steam sterilizing 25min, obtains culture medium；Rhodococcus erythropolis is put into culture medium, is cultivated 7 days at 35 DEG C, obtains rhodococcus erythropolis
Culture；Modified phoenix tree leaf matrix activated carbon is added in rhodococcus erythropolis culture, 18min is stirred with 175r/min under room temperature,
Obtain mixture；It pours the mixture into reaction kettle, 25min is stirred to react at 25 DEG C, then be placed in baking oven, in 55 DEG C of condition
Lower dry 1h, obtains flocculant.Deionized water, sucrose solution, starch, glucose solution, sodium acetate, urea, modified Chinese parasol tree phyllopodium
The parts by weight of active carbon are 25 parts of deionized waters, 11 parts of mass fractions are 30% sucrose solution, 9 parts of starch, 18 parts of mass fractions
For 30% glucose solution, 9 parts of sodium acetates, 9 parts of urea, 70 parts of modified phoenix tree leaf matrix activated carbons.Autoclaved condition is
0.12MPa,115℃.The specific preparation step of modified phoenix tree leaf matrix activated carbon are as follows: silt micelle is placed in pulverizer, room temperature
Lower crushing 18min obtains silt micelle crushed material；Phoenix tree leaf active carbon is mixed with silt micelle crushed material and is placed on reaction kettle
In, 35min is stirred to react with 350r/min revolving speed at 45 DEG C, obtains modified phoenix tree leaf matrix activated carbon.Phoenix tree leaf active carbon, silt
The parts by weight of micelle are 50 parts of phoenix tree leaf active carbons, 25 parts of silt micelles.The specific preparation step of phoenix tree leaf active carbon are as follows: by Chinese parasol tree
Paulownia leaf powder is placed in copper-bath, and 22h is impregnated under room temperature, is filtered, is taken filter cake, is placed at 35 DEG C dry 50min, must be handled
Phoenix tree leaf powder afterwards；By treated, phoenix tree leaf powder is placed in microwave device, is irradiated 18min, is stood 3h under room temperature, obtain Chinese parasol tree
Paulownia leaf active carbon, phoenix tree leaf powder, copper-bath parts by weight be 50 parts of phoenix tree leaf powder, 100 parts of mass concentrations are 20%
Copper-bath.Irradiation frequency is 2250MHz.The specific preparation step of phoenix tree leaf powder are as follows: phoenix tree leaf is placed in dehydrated alcohol
In, 35min is impregnated under room temperature, obtains the phoenix tree leaf of alcohol treatment；The phoenix tree leaf of alcohol treatment is placed in deionized water, at 35 DEG C
It impregnates to boil under water-bath and washes 50min, the phoenix tree leaf washed must be boiled；The phoenix tree leaf washed will be boiled and be placed at 45 DEG C dry 1h, obtain dry Chinese parasol tree
Paulownia leaf；Dry phoenix tree leaf is placed in pulverizer, 25min is crushed under room temperature, 90 meshes is crossed, obtains phoenix tree leaf powder.Phoenix tree leaf,
Dehydrated alcohol, deionized water parts by weight be 70 parts of phoenix tree leafs, 140 parts of dehydrated alcohols, 140 parts of deionized waters.
Example 3
Starch is added in deionized water, 4h is stirred with 400r/min revolving speed under 40 DEG C of water-baths, obtains starch solution；Sucrose is molten
Liquid, glucose solution, sodium acetate, urea are added in starch solution, stir 20min, then high pressure under room temperature with 300r/min revolving speed
Steam sterilizing 30min, obtains culture medium；Rhodococcus erythropolis is put into culture medium, is cultivated 8 days at 40 DEG C, obtains rhodococcus erythropolis
Culture；Modified phoenix tree leaf matrix activated carbon is added in rhodococcus erythropolis culture, 20min is stirred with 200r/min under room temperature,
Obtain mixture；It pours the mixture into reaction kettle, 30min is stirred to react at 30 DEG C, then be placed in baking oven, in 60 DEG C of condition
Lower dry 2h, obtains flocculant.Deionized water, sucrose solution, starch, glucose solution, sodium acetate, urea, modified Chinese parasol tree phyllopodium
The parts by weight of active carbon are 30 parts of deionized waters, 12 parts of mass fractions are 30% sucrose solution, 10 parts of starch, 20 parts of quality point
Glucose solution, 10 part sodium acetates, 10 part urea, 80 part modified phoenix tree leaf matrix activated carbons of the number for 30%.Autoclaved condition
For 0.13MPa, 120 DEG C.The specific preparation step of modified phoenix tree leaf matrix activated carbon are as follows: silt micelle is placed in pulverizer, often
Temperature is lower to crush 20min, obtains silt micelle crushed material；Phoenix tree leaf active carbon is mixed with silt micelle crushed material and is placed on reaction kettle
In, 40min is stirred to react with 400r/min revolving speed at 50 DEG C, obtains modified phoenix tree leaf matrix activated carbon.Phoenix tree leaf active carbon, silt
The parts by weight of micelle are 60 parts of phoenix tree leaf active carbons, 30 parts of silt micelles.The specific preparation step of phoenix tree leaf active carbon are as follows: by Chinese parasol tree
Paulownia leaf powder is placed in copper-bath, is impregnated for 24 hours under room temperature, is filtered, take filter cake, is placed at 40 DEG C dry 60min, must be handled
Phoenix tree leaf powder afterwards；By treated, phoenix tree leaf powder is placed in microwave device, is irradiated 20min, is stood 4h under room temperature, obtain Chinese parasol tree
Paulownia leaf active carbon, phoenix tree leaf powder, copper-bath parts by weight be 60 parts of phoenix tree leaf powder, 120 parts of mass concentrations are 20%
Copper-bath.Irradiation frequency is 2500MHz.The specific preparation step of phoenix tree leaf powder are as follows: phoenix tree leaf is placed in dehydrated alcohol
In, 40min is impregnated under room temperature, obtains the phoenix tree leaf of alcohol treatment；The phoenix tree leaf of alcohol treatment is placed in deionized water, at 40 DEG C
It impregnates to boil under water-bath and washes 60min, the phoenix tree leaf washed must be boiled；The phoenix tree leaf washed will be boiled and be placed at 50 DEG C dry 2h, obtain dry Chinese parasol tree
Paulownia leaf；Dry phoenix tree leaf is placed in pulverizer, 30min is crushed under room temperature, sieves with 100 mesh sieve, obtains phoenix tree leaf powder.Chinese parasol tree
Leaf, dehydrated alcohol, deionized water parts by weight be 80 parts of phoenix tree leafs, 160 parts of dehydrated alcohols, 160 parts of deionized waters.
Reference examples: the flocculant of Zhengzhou company production.
The flocculant that example and reference examples are prepared is detected, specific detection is as follows:
Flocculant performance: the 200mgL of 100mL is taken﹣ 1Waste water, a certain amount of flocculant is added, on arm-type blender first
Quickly stirring (about 150rmin﹣ 1) 2min, then mix slowly (about 40rmin﹣ 1) 30min, 30min is finally stood, liquid level is taken
Clear liquid measurement chroma removal rate and COD removal rate at lower 1-2cm.
Specific test result such as table 1.
1 performance characterization contrast table of table
| Detection project | Example 1 | Example 2 | Example 3 | Reference examples |
| Chroma removal rate/% | 93.5 | 91.5 | 91.3 | 66.4 |
| COD removal rate/% | 78.5 | 75.9 | 76.4 | 32.5 |
As shown in Table 1, flocculant prepared by the present invention has good water pollutant removal effect.
Claims (10)
1. a kind of preparation method of flocculant, which is characterized in that specific preparation step are as follows:
(1) starch is added in deionized water, 2~4h is stirred with 300~400r/min revolving speed under 30~40 DEG C of water-baths, must be formed sediment
Powder solution；
(2) sucrose solution, glucose solution, sodium acetate, urea are added in starch solution, with 200~300r/min under room temperature
Revolving speed stirs 10~20min, then 20~30min of high pressure steam sterilization, obtains culture medium；
(3) rhodococcus erythropolis is put into culture medium, is cultivated 6~8 days at 30~40 DEG C, obtains rhodococcus erythropolis culture；
(4) modified phoenix tree leaf matrix activated carbon is added in rhodococcus erythropolis culture, with 150~200r/min stirring 15 under room temperature
~20min, obtains mixture；
(5) it pours the mixture into reaction kettle, 20~30min is stirred to react at 20~30 DEG C, then be placed in baking oven, 50~
Dry 1~2h, obtains flocculant under conditions of 60 DEG C.
2. a kind of preparation method of flocculant according to claim 1, it is characterised in that: the deionized water, sucrose
Solution, glucose solution, sodium acetate, urea, is modified the parts by weight of phoenix tree leaf matrix activated carbon as 20~30 parts of deionizations at starch
The glucose that sucrose solution that water, 10~12 parts of mass fractions are 30%, 8~10 parts of starch, 15~20 parts of mass fractions are 30%
Solution, 8~10 parts of sodium acetates, 9~10 parts of urea, 60~80 parts of modified phoenix tree leaf matrix activated carbons.
3. a kind of preparation method of flocculant according to claim 1, it is characterised in that: high pressure described in step (2) is gone out
The condition of bacterium is 0.11~0.13MPa, 110~120 DEG C.
4. a kind of preparation method of flocculant according to claim 1, it is characterised in that: modification Chinese parasol tree described in step (4)
The specific preparation step of paulownia phyllopodium active carbon are as follows:
(1) silt micelle is placed in pulverizer, 15~20min is crushed under room temperature, obtains silt micelle crushed material；
(2) phoenix tree leaf active carbon is mixed with silt micelle crushed material and is placed in reaction kettle, at 40~50 DEG C with 300~
400r/min revolving speed is stirred to react 30~40min, obtains modified phoenix tree leaf matrix activated carbon.
5. a kind of preparation method of flocculant according to claim 4, it is characterised in that: the phoenix tree leaf active carbon,
The parts by weight of silt micelle are 40~60 parts of phoenix tree leaf active carbons, 20~30 parts of silt micelles.
6. a kind of preparation method of flocculant according to claim 4, it is characterised in that: phoenix tree leaf described in step (2)
The specific preparation step of active carbon are as follows:
(1) phoenix tree leaf powder is placed in copper-bath, under room temperature impregnate 20~for 24 hours, filter, take filter cake, be placed in 30~40
Dry 40~60min at DEG C, the phoenix tree leaf powder that obtains that treated；
(2) by treated, phoenix tree leaf powder is placed in microwave device, is irradiated 15~20min, is stood 2~4h under room temperature, obtain Chinese parasol tree
Paulownia leaf active carbon.
7. a kind of preparation method of flocculant according to claim 6, it is characterised in that: the phoenix tree leaf powder, sulphur
The copper-bath that the parts by weight of sour copper solution are 40~60 parts of phoenix tree leaf powder, 80~120 parts of mass concentrations are 20%.
8. a kind of preparation method of flocculant according to claim 6, it is characterised in that: the frequency of irradiation described in step (2)
Rate is 2000~2500MHz.
9. a kind of preparation method of flocculant according to claim 6, it is characterised in that: phoenix tree leaf described in step (1)
The specific preparation step of powder are as follows:
(1) phoenix tree leaf is placed in dehydrated alcohol, 30~40min is impregnated under room temperature, obtains the phoenix tree leaf of alcohol treatment；
(2) phoenix tree leaf of alcohol treatment is placed in deionized water, impregnates to boil under 30~40 DEG C of water-baths and wash 40~60min, obtains
Boil the phoenix tree leaf washed；
(3) phoenix tree leaf washed will be boiled and be placed at 40~50 DEG C dry 1~2h, obtain dry phoenix tree leaf；
(4) dry phoenix tree leaf is placed in pulverizer, 20~30min is crushed under room temperature, crossed 80~100 meshes, obtain phoenix tree leaf
Powder.
10. a kind of preparation method of flocculant according to claim 9, it is characterised in that: the phoenix tree leaf, anhydrous second
Alcohol, deionized water parts by weight be 60~80 parts of phoenix tree leafs, 120~160 parts of dehydrated alcohols, 120~160 parts of deionized waters.
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| CN112280804A (en) * | 2020-09-30 | 2021-01-29 | 神美科技有限公司 | Preparation method and application of microbial flocculant |
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