CN108545798A - Water treatment agent of high-efficiency environment friendly and preparation method thereof - Google Patents

Water treatment agent of high-efficiency environment friendly and preparation method thereof Download PDF

Info

Publication number
CN108545798A
CN108545798A CN201810394420.0A CN201810394420A CN108545798A CN 108545798 A CN108545798 A CN 108545798A CN 201810394420 A CN201810394420 A CN 201810394420A CN 108545798 A CN108545798 A CN 108545798A
Authority
CN
China
Prior art keywords
parts
treatment agent
water treatment
chitosan
environment friendly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810394420.0A
Other languages
Chinese (zh)
Inventor
刘海成
沈耀良
尤雯
曹家炜
薛婷婷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou University of Science and Technology
Original Assignee
Suzhou University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou University of Science and Technology filed Critical Suzhou University of Science and Technology
Priority to CN201810394420.0A priority Critical patent/CN108545798A/en
Publication of CN108545798A publication Critical patent/CN108545798A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/50Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/281Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/286Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/288Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The present invention provides a kind of water treatment agent of high-efficiency environment friendly, and the raw material of the inorganic agent includes following component by weight:50 53 parts of chitosan magnetic grafted polyacrylamide, 20 22 parts of expanded graphite, modified 15 18 parts of coconut husk charcoal, 12 13 parts of ramee, 10 12 parts of diatomite, 10 12 parts of palygorskite, 89 parts of perlite, 58 parts of lime tree sawdust, 46 parts of pine needle meal.The raw material components that the present invention uses are environment-protecting and non-poisonous, secondary pollution will not be caused to water body, by the way that each raw material component of certain content is mixed, the mutual cooperation between each raw material component can be given full play to and mutually acted synergistically, realize effective combination of physical absorption and chemical reaction, to greatly improve removal effect of the water treatment agent to dissolved organic matter and metal ion in water body, simultaneously, the bacterium and microorganism in water body can also be killed, avoids its mass propagation and polluted-water.

Description

Water treatment agent of high-efficiency environment friendly and preparation method thereof
Technical field
The present invention relates to water-treatment technology fields, and in particular to a kind of water treatment agent of high-efficiency environment friendly and preparation method thereof.
Background technology
Water is the most basic demand of human survival, and however as the fast development of industry, water pollution problem becomes increasingly conspicuous, Meanwhile the continuous improvement of people's living standard, to water quality, higher requirements are also raised.Current water pollution is come It sees, soluble organic matter and difficult for biological degradation compound, heavy metal ion etc. increase year by year in the water body including drinking water More, drinking water quality safety guarantee also begins to threaten, meanwhile, the bacterium in water is easy because containing large amount of organic in water body Matter and it is excessive breed, and then cause water pollution, threaten health.
But current conventional water treatment means are not notable to the removal effect of this kind of soluble organic pollution, existing simultaneously Capable many water treatment agents are also possible to generate environmentally harmful secondary pollution substance, this to environmental protection and can undoubtedly hold Supervention exhibition etc. brings adverse effect.Therefore seek to have efficient, environmentally friendly, economic and non-secondary pollution water treatment agent concurrently to be current water The research hotspot and advanced subject of process field.
Invention content
In view of this, the present invention provides the water treatment agent of a kind of high-efficiency environment friendly, non-secondary pollution, water can be removed effectively Harmful organic substances in body, while the bacterium in water is killed, avoid it from excessively breeding and cause the more serious pollution of water body.
The present invention provides a kind of water treatment agent of high-efficiency environment friendly, and the raw material of the inorganic agent includes such as the following group by weight Point:50-53 parts of chitosan magnetic grafted polyacrylamide, 20-22 parts of expanded graphite, modified 15-18 parts of coconut husk charcoal, ramee 12-13 parts, 10-12 parts of diatomite, 10-12 parts of palygorskite, 8-9 parts of perlite, 5-8 parts of lime tree sawdust, 4-6 parts of pine needle meal;
Further, the raw material of the inorganic agent includes following component by weight:Chitosan magnetic grafted polyacrylamide 51 parts, 21 parts of expanded graphite, modified 16 parts of coconut husk charcoal, 12 parts of ramee, 11 parts of diatomite, 11 parts of palygorskite, perlite 9 Part, 6 parts of lime tree sawdust, 5 parts of pine needle meal;
Further, the preparation method of the modified coconut husk charcoal is:It is 1 in mass ratio:3.5 mixing coconut husk charcoals and Pseudomonas aeruginosa The fatty enzyme solution that secretion generates is subsequently placed in the shaking table that rotating speed is 155r/min, 6h is handled at 35 DEG C, filters and at drying Reason is to get modified coconut husk charcoal;
Further, the granularity of the chitosan magnetic grafted polyacrylamide is 200 mesh;
Further, the preparation method of the chitosan magnetic grafted polyacrylamide includes the following steps:
(1) it is 0.58-1.16g to press mass volume ratio:Chitosan is completely dissolved in the acetic acid of a concentration of 1-2% by 100ml In aqueous solution, chitosan acetic acid solution is made, then heats to 45 DEG C, and keep constant temperature;
(2) it is 10 by volume:1 the ammonium ceric nitrate of a concentration of 0.2mol/L is added into the chitosan acetic acid solution of constant temperature Aqueous solution, and 30min is stirred to react with the mixing speed of 200r/min, the mass ratio for pressing chitosan and acrylamide later is 1: Acrylamide is added in 1-3, continues to be stirred to react 180min with the mixing speed of 200r/min, mixed solution A is made;
(3) it is 2 by volume:1 the mixed aqueous solution of iron chloride and ferrous sulfate is added into mixed solution A, with 300r/ The mixing speed of min stirs evenly, and adjusts pH to 9~10, and mixed solution B is made;
(4) it is by volume 55-160:After 1 is added epoxychloropropane into mixed solution B, it is warming up to 60 DEG C, and with The mixing speed of 400r/min is stirred to react 60min, then stops stirring, stands 120min, then carries out Magneto separate processing, then Solid matter is collected in filtering;
(5) absolute ethyl alcohol washed solid is used, until filtrate is in neutrality, the solid after then being washed with soaked in absolute ethyl alcohol Substance 2h, then the solid matter of gained is dried to get chitosan magnetic grafted polyacrylamide;
In the step (3), by a concentration of 0.4mol/L of the iron chloride and a concentration of 0.2-0.4mol/L of ferrous sulfate Configure the mixed aqueous solution of iron chloride and ferrous sulfate;
Further, the ramee is single filiform, and length is 1.0cm-1.2cm.
The invention also discloses a kind of methods for the water treatment agent being used to prepare high-efficiency environment friendly, include the following steps:By magnetic Property chitosan graft polyacrylamide, expanded graphite, modified coconut husk charcoal, diatomite, palygorskite and perlite mixing and be ground into After granularity is 200 mesh powders, be added ramee, lime tree sawdust, pine needle meal and being enough impregnate all raw material components go from Sub- water, stirring keep ramee, lime tree sawdust and pine needle meal fully dispersed, then filter, and collect solid mixture, then by solid Mixture is dried, as the water treatment agent of high-efficiency environment friendly.
Beneficial effects of the present invention:
The raw material components that the present invention uses are environment-protecting and non-poisonous, will not cause secondary pollution to water body, by by certain content Each raw material component mixed, mutual cooperation between each raw material component and mutually synergistic effect can be given full play to, realized Effective combination of physical absorption and chemical reaction, to greatly improve water treatment agent to the dissolved organic matter and gold in water body The removal effect for belonging to ion avoids its mass propagation and contaminant water at the same time it can also kill the bacterium and microorganism in water body Body.Wherein, ramee is based on its internal special ultrafine micropore structure, and has powerful adsorption capacity to organic matter;It is swollen Swollen graphite has loose and porous structure, has powerful adsorption capacity to organic compound;Diatomite and perlite all have solely Special pore structure, porosity is big, and absorption property is strong, can largely adsorb organic substance and heavy metal;Palygorskite has very big Specific surface area, and stronger adsorption capacity is all had to heavy metal and organic matter;Lime tree sawdust can not only absorb organic matter, Also there is certain antibacterial mithridatism;Pine needle meal can effectively kill the bacterium contained in water body and parasite etc.;Coconut husk Charcoal itself has porous structure, and certain removal effect is all had to heavy metal and organic substance, and Pseudomonas aeruginosa is used to secrete After the fatty enzyme solution of generation is modified coconut husk charcoal, the active group of coconut husk carbon surface is increased, coconut husk charcoal and water are conducive to Heavy metal and organic substance are complexed in body, to greatly improve coconut husk charcoal for Heavy Metals in Waters and organic substance Removal effect;In chitosan magnetic grafted polyacrylamide other than with amino and hydroxyl reactive group, amide is also added Group, and material itself also has magnetism, has very strong adsorbing and removing effect to the pollutant in water body, it can be effective Combined with organic pollution and heavy metal.Meanwhile each raw material component used in the present invention is acted in specific preparation method Under, it can realize preferable dispersion, give full play to the synergistic function between raw material components, greatly improve the processing to water body Effect.
In addition, the raw material that the present invention uses not only derive from a wealth of sources, are cheap, property is stablized, and to the mankind and environment It is all safe and non-toxic, while most of is light material, floatability, suspension and the sink-float that can increase water treatment agent are controllable Property, be conducive to the clean-up effect for reaching 3 D stereo to water body.
Specific implementation mode
The present embodiment provides a kind of water treatment agent of high-efficiency environment friendly, the raw material of the inorganic agent includes such as the following group by weight Point:50-53 parts of chitosan magnetic grafted polyacrylamide, 20-22 parts of expanded graphite, modified 15-18 parts of coconut husk charcoal, ramee 12-13 parts, 10-12 parts of diatomite, 10-12 parts of palygorskite, 8-9 parts of perlite, 5-8 parts of lime tree sawdust, 4-6 parts of pine needle meal;
Preferably, the raw material of the inorganic agent includes following component by weight:Chitosan magnetic grafted polyacrylamide 51 parts, 21 parts of expanded graphite, modified 16 parts of coconut husk charcoal, 12 parts of ramee, 11 parts of diatomite, 11 parts of palygorskite, perlite 9 Part, 6 parts of lime tree sawdust, 5 parts of pine needle meal;
The raw material components that the present embodiment uses are environment-protecting and non-poisonous, secondary pollution will not be caused to water body, by containing specific The each raw material component of amount is mixed, and can be given full play to the mutual cooperation between each raw material component and mutually be acted synergistically, real Effective combination of existing physical absorption and chemical reaction, to greatly improve water treatment agent in water body dissolved organic matter and The removal effect of metal ion avoids its mass propagation and pollutes at the same time it can also kill the bacterium and microorganism in water body Water body.Wherein, ramee is based on its internal special ultrafine micropore structure, and has powerful adsorption capacity to organic matter; Expanded graphite has loose and porous structure, has powerful adsorption capacity to organic compound;Diatomite and perlite all have Unique pore structure, porosity is big, and absorption property is strong, can largely adsorb organic substance and heavy metal;Palygorskite has very Big specific surface area, and stronger adsorption capacity is all had to heavy metal and organic matter;Lime tree sawdust can not only absorb organic Object also has certain antibacterial mithridatism;Pine needle meal can effectively kill the bacterium contained in water body and parasite etc.;Coconut palm Shell charcoal itself has porous structure, and certain removal effect is all had to heavy metal and organic substance, and uses Pseudomonas aeruginosa point Secrete generation fatty enzyme solution coconut husk charcoal is modified after, increase the active group of coconut husk carbon surface, be conducive to coconut husk charcoal with Heavy Metals in Waters and organic substance are complexed, to greatly improve coconut husk charcoal for Heavy Metals in Waters and organic substance Removal effect;In chitosan magnetic grafted polyacrylamide other than with amino and hydroxyl reactive group, acyl is also added Amine groups, and material itself also has magnetism, has very strong adsorbing and removing effect, Neng Gouyou to the pollutant in water body Effect is combined with organic pollution and heavy metal.Meanwhile each raw material component used in the present embodiment is in specific preparation method Under effect, it can realize preferable dispersion, give full play to the synergistic function between raw material components, greatly improve to water body Treatment effect.
In addition, the raw material that the present embodiment uses not only derive from a wealth of sources, are cheap, property is stablized, and to the mankind and ring Border is all safe and non-toxic, while most of is light material, and floatability, suspension and the sink-float that can increase water treatment agent are controllable Property, be conducive to the clean-up effect for reaching 3 D stereo to water body.
In the present embodiment, the preparation method of the modified coconut husk charcoal is:It is 1 in mass ratio:3.5 mixing coconut husk charcoals and green pus The fatty enzyme solution that bacillus secretion generates is subsequently placed in the shaking table that rotating speed is 155r/min, 6h is handled at 35 DEG C, filters and dry Processing is to get modified coconut husk charcoal;Coconut husk charcoal itself has porous structure, and certain removal is all had to heavy metal and organic substance Effect, and after the fatty enzyme solution for using Pseudomonas aeruginosa secretion to generate is modified coconut husk charcoal, increase the work of coconut husk carbon surface Property group, be conducive to coconut husk charcoal is complexed with Heavy Metals in Waters and organic substance, to greatly improve coconut husk charcoal for The removal effect of Heavy Metals in Waters and organic substance.
In the present embodiment, the activation method of Pseudomonas aeruginosa is:
(1) culture medium of beef extract fermented and cultured is prepared:Beef extract 30g, peptone 15g and sodium chloride 15g is weighed to be dissolved in In 1000mL distilled water, ph=7.0~7.2 are adjusted with 0.1mol/L NaOH solutions, the then sterilizing 5 at 121 DEG C in autoclave Minute to get;
(2) freeze-dried powder activates:Freeze-dried powder is added in the culture medium of beef extract fermented and cultured, jiggling makes its mixing system Bacteria suspension is obtained, is fabricated to slant medium after then slightly cooling down the LB solid mediums of sterilizing, and bacteria suspension part is transplanted It onto slant medium, is placed in 37 DEG C of constant incubator and cultivates, so that its colony counts is increased, then chosen from slant medium Healthy and strong bacterium colony is cultivated in choosing, is inoculated on new slant medium and is cultivated, and repeats above step 2~3 times, until obtaining growing good Good bacterial strain.
In the present embodiment, the preparation method of the culture medium of the Pseudomonas aeruginosa fermented and cultured is:Weigh beef extract 30g, egg White peptone 15g and sodium chloride 15g is dissolved in 1000mL distilled water, adjusts ph=7.0~7.2 with 0.1mol/L NaOH solutions, then Sterilize at 121 DEG C in autoclave 5 minutes to get;The Pseudomonas aeruginosa fermentation culture conditions are:Cultivation temperature is 32 DEG C, is shaken Bed rotating speed is 150r/min, and incubation time is 7 days.It can be adjusted in proportion when preparing culture solution, to adapt to the bacterium of culture Total amount, i.e., the amount of culture solution according to the total quantity equal proportion of Bacteria Culture allocate.
In the present embodiment, the extracting method for the fatty enzyme solution that the Pseudomonas aeruginosa secretion generates includes the following steps:
(1) crude fat enzyme solution is extracted:Zymotic fluid is collected, 15min is centrifuged under 4000r/min and obtains supernatant, as slightly Fatty enzyme solution;
(2) fatty enzyme solution is extracted:Take a concentration of 0.0667molL of 3mL-1Phosphate buffer solution and 1mL oleic acid are in taper It in bottle, is put into after mixing in 37 DEG C of thermostat water bath and preheats at least 5min, extraction gained in step (1) is then added thereto 0.1ml crude fat enzyme solutions, after being stirred to react 10min, 8ml toluene (analysis is pure) is added immediately, continues after being stirred to react 2min, Terminate reaction;Again by after above-mentioned steps are handled gained solution under the conditions of 3000r/min centrifugal treating at least 10min, take Upper layer organic liquid mixture is required fatty enzyme solution;Needed for extraction when fatty enzyme solution, phosphate buffer solution, oleic acid and first The dosage of benzene is adjusted all in accordance with the amount equal proportion of the crude fat enzyme solution extracted.
In the present embodiment, the granularity of the chitosan magnetic grafted polyacrylamide is 200 mesh;Be conducive to be better achieved Dispersion.
In the present embodiment, the preparation method of the chitosan magnetic grafted polyacrylamide includes the following steps:
(1) it is 0.58-1.16g to press mass volume ratio:Chitosan is completely dissolved in the acetic acid of a concentration of 1-2% by 100ml In aqueous solution, chitosan acetic acid solution is made, then heats to 45 DEG C, and keep constant temperature;
(2) it is 10 by volume:1 the ammonium ceric nitrate of a concentration of 0.2mol/L is added into the chitosan acetic acid solution of constant temperature Aqueous solution, and 30min is stirred to react with the mixing speed of 200r/min, the mass ratio for pressing chitosan and acrylamide later is 1: Acrylamide is added in 1-3, continues to be stirred to react 180min with the mixing speed of 200r/min, mixed solution A is made;
(3) it is 2 by volume:1 the mixed aqueous solution of iron chloride and ferrous sulfate is added into mixed solution A, with 300r/ The mixing speed of min stirs evenly, and adjusts pH to 9~10, and mixed solution B is made;
(4) it is by volume 55-160:After 1 is added epoxychloropropane into mixed solution B, it is warming up to 60 DEG C, and with The mixing speed of 400r/min is stirred to react 60min, then stops stirring, stands 120min, then carries out Magneto separate processing, then Solid matter is collected in filtering;
(5) absolute ethyl alcohol washed solid is used, until filtrate is in neutrality, the solid after then being washed with soaked in absolute ethyl alcohol Substance 2h, then the solid matter of gained is dried to get chitosan magnetic grafted polyacrylamide;
In the step (3), by a concentration of 0.4mol/L of the iron chloride and a concentration of 0.2-0.4mol/L of ferrous sulfate Configure the mixed aqueous solution of iron chloride and ferrous sulfate.
In the present embodiment, the ramee is single filiform, and length is 1.0cm-1.2cm, is easy to implement preferably Dispersion.
The present embodiment also discloses a kind of method for the water treatment agent being used to prepare high-efficiency environment friendly, includes the following steps:It will Chitosan magnetic grafted polyacrylamide, expanded graphite, modified coconut husk charcoal, diatomite, palygorskite and perlite mixing are simultaneously ground After being 200 mesh powders at granularity, ramee is added, lime tree sawdust, pine needle meal and is enough to impregnate going for all raw material components Ionized water, stirring keep ramee, lime tree sawdust and pine needle meal fully dispersed, then filter, and collect solid mixture, then will consolidate Body mixture is dried, as the water treatment agent of high-efficiency environment friendly;Preparation method provided in this embodiment is easy to operate, can be by each original Material component is uniformly mixed, and makes each component that synergy be better achieved, to reach better purifying water effect, by this reality Applying the preparation method of example may finally prepare and have excellent performance, and stability is good, the good water treatment agent of purifying water effect.
In the present embodiment, raw material components used can be bought on the market.
It is specific embodiment below:
Embodiment one
The raw material of the water treatment agent of high-efficiency environment friendly provided in this embodiment, the inorganic agent includes such as the following group by weight Point:53 parts of chitosan magnetic grafted polyacrylamide, 22 parts of expanded graphite, modified 18 parts of coconut husk charcoal, 13 parts of ramee, diatom 12 parts of soil, 12 parts of palygorskite, 9 parts of perlite, 8 parts of lime tree sawdust, 6 parts of pine needle meal;The chitosan magnetic graft polypropylene acyl The granularity of amine is 200 mesh;The ramee is single filiform, and length is 1.2cm.
In the present embodiment, the preparation method of the modified coconut husk charcoal is:It is 1 in mass ratio:3.5 mixing coconut husk charcoals and green pus The fatty enzyme solution that bacillus secretion generates is subsequently placed in the shaking table that rotating speed is 155r/min, 6h is handled at 35 DEG C, filters and dry Processing is to get modified coconut husk charcoal.
In the present embodiment, the activation method of Pseudomonas aeruginosa is:
(1) culture medium of beef extract fermented and cultured is prepared:Beef extract 30g, peptone 15g and sodium chloride 15g is weighed to be dissolved in In 1000mL distilled water, ph=7.0~7.2 are adjusted with 0.1mol/L NaOH solutions, the then sterilizing 5 at 121 DEG C in autoclave Minute to get;
(2) freeze-dried powder activates:Freeze-dried powder is added in the culture medium of beef extract fermented and cultured, jiggling makes its mixing system Bacteria suspension is obtained, is fabricated to slant medium after then slightly cooling down the LB solid mediums of sterilizing, and bacteria suspension part is transplanted It onto slant medium, is placed in 37 DEG C of constant incubator and cultivates, so that its colony counts is increased, then chosen from slant medium Healthy and strong bacterium colony is cultivated in choosing, is inoculated on new slant medium and is cultivated, and repeats above step 2~3 times, until obtaining growing good Good bacterial strain.
In the present embodiment, the preparation method of the culture medium of the Pseudomonas aeruginosa fermented and cultured is:Weigh beef extract 30g, egg White peptone 15g and sodium chloride 15g is dissolved in 1000mL distilled water, adjusts ph=7.0~7.2 with 0.1mol/L NaOH solutions, then Sterilize at 121 DEG C in autoclave 5 minutes to get;The Pseudomonas aeruginosa fermentation culture conditions are:Cultivation temperature is 32 DEG C, is shaken Bed rotating speed is 150r/min, and incubation time is 7 days.
In the present embodiment, the extracting method for the fatty enzyme solution that the Pseudomonas aeruginosa secretion generates includes the following steps:
(1) crude fat enzyme solution is extracted:Zymotic fluid is collected, 15min is centrifuged under 4000r/min and obtains supernatant, as slightly Fatty enzyme solution;
(2) fatty enzyme solution is extracted:Take a concentration of 0.0667molL of 3mL-1Phosphate buffer solution and 1mL oleic acid are in taper It in bottle, is put into after mixing in 37 DEG C of thermostat water bath and preheats at least 5min, extraction gained in step (1) is then added thereto 0.1ml crude fat enzyme solutions, after being stirred to react 10min, 8ml toluene (analysis is pure) is added immediately, continues after being stirred to react 2min, Terminate reaction;Again by after above-mentioned steps are handled gained solution under the conditions of 3000r/min centrifugal treating at least 10min, take Upper layer organic liquid mixture is required fatty enzyme solution;Needed for extraction when fatty enzyme solution, phosphate buffer solution, oleic acid and first The dosage of benzene is adjusted all in accordance with the amount equal proportion of the crude fat enzyme solution extracted.
In the present embodiment, the preparation method of the chitosan magnetic grafted polyacrylamide includes the following steps:
(1) it is 0.58g to press mass volume ratio:Chitosan is completely dissolved in a concentration of 1% acetic acid aqueous solution by 100ml In, chitosan acetic acid solution is made, then heats to 45 DEG C, and keep constant temperature;
(2) it is 10 by volume:1 the ammonium ceric nitrate of a concentration of 0.2mol/L is added into the chitosan acetic acid solution of constant temperature Aqueous solution, and 30min is stirred to react with the mixing speed of 200r/min, the mass ratio for pressing chitosan and acrylamide later is 1: 3 are added acrylamide, continue to be stirred to react 180min with the mixing speed of 200r/min, mixed solution A is made;
(3) it is 2 by volume:1 the mixed aqueous solution of iron chloride and ferrous sulfate is added into mixed solution A, with 300r/ The mixing speed of min stirs evenly, and adjusts pH to 9~10 (being adjusted with the NaOH of 2mol/L), and mixed solution B is made;
(4) it is 160 by volume:After 1 is added epoxychloropropane into mixed solution B, 60 DEG C are warming up to, and with 400r/ The mixing speed of min is stirred to react 60min, then stops stirring, stands 120min, then carries out Magneto separate processing, refilters, Collect solid matter;
(5) absolute ethyl alcohol washed solid is used, until filtrate is in neutrality, the solid after then being washed with soaked in absolute ethyl alcohol Substance 2h, then the solid matter of gained is dried to get chitosan magnetic grafted polyacrylamide;
In the step (3), configured by a concentration of 0.4mol/L of iron chloride and a concentration of 0.4mol/L of ferrous sulfate The mixed aqueous solution of iron chloride and ferrous sulfate.
The method of the water treatment agent provided in this embodiment for being used to prepare high-efficiency environment friendly, includes the following steps:By magnetic crust Glycan grafted polyacrylamide, expanded graphite, modified coconut husk charcoal, diatomite, palygorskite and perlite mixing are simultaneously ground into granularity After 200 mesh powder, ramee, lime tree sawdust, pine needle meal is added and is enough to impregnate the deionized water of all raw material components, Stirring keeps ramee, lime tree sawdust and pine needle meal fully dispersed, then filters, and collects solid mixture, then solid is mixed Object is dried, as the water treatment agent of high-efficiency environment friendly.
Embodiment two
The raw material of the water treatment agent of high-efficiency environment friendly provided in this embodiment, the inorganic agent includes such as the following group by weight Point:53 parts of chitosan magnetic grafted polyacrylamide, 20 parts of expanded graphite, modified 18 parts of coconut husk charcoal, 12 parts of ramee, diatom 12 parts of soil, 10 parts of palygorskite, 9 parts of perlite, 5 parts of lime tree sawdust, 6 parts of pine needle meal;The chitosan magnetic graft polypropylene acyl The granularity of amine is 200 mesh;The ramee is single filiform, and length is 1.0cm.
In the present embodiment, the preparation method of the modified coconut husk charcoal is the same as embodiment one.
In the present embodiment, the extraction of the fatty enzyme solution of the activation method of the Pseudomonas aeruginosa and Pseudomonas aeruginosa secretion generation Method is the same as embodiment one.
In the present embodiment, the preparation method of the chitosan magnetic grafted polyacrylamide includes the following steps:
(1) it is 1.16g to press mass volume ratio:Chitosan is completely dissolved in a concentration of 2% acetic acid aqueous solution by 100ml In, chitosan acetic acid solution is made, then heats to 45 DEG C, and keep constant temperature;
(2) it is 10 by volume:1 the ammonium ceric nitrate of a concentration of 0.2mol/L is added into the chitosan acetic acid solution of constant temperature Aqueous solution, and 30min is stirred to react with the mixing speed of 200r/min, the mass ratio for pressing chitosan and acrylamide later is 1: 1 is added acrylamide, continues to be stirred to react 180min with the mixing speed of 200r/min, mixed solution A is made;
(3) it is 2 by volume:1 the mixed aqueous solution of iron chloride and ferrous sulfate is added into mixed solution A, with 300r/ The mixing speed of min stirs evenly, and adjusts pH to 9~10 (being adjusted with the NaOH of 2mol/L), and mixed solution B is made;
(4) it is 55 by volume:After 1 is added epoxychloropropane into mixed solution B, 60 DEG C are warming up to, and with 400r/ The mixing speed of min is stirred to react 60min, then stops stirring, stands 120min, then carries out Magneto separate processing, refilters, Collect solid matter;
(5) absolute ethyl alcohol washed solid is used, until filtrate is in neutrality, the solid after then being washed with soaked in absolute ethyl alcohol Substance 2h, then the solid matter of gained is dried to get chitosan magnetic grafted polyacrylamide;
In the step (3), configured by a concentration of 0.4mol/L of iron chloride and a concentration of 0.4mol/L of ferrous sulfate The mixed aqueous solution of iron chloride and ferrous sulfate.
The method of the water treatment agent provided in this embodiment for being used to prepare high-efficiency environment friendly is the same as embodiment one.
Embodiment three
The raw material of the water treatment agent of high-efficiency environment friendly provided in this embodiment, the inorganic agent includes such as the following group by weight Point:51 parts of chitosan magnetic grafted polyacrylamide, 21 parts of expanded graphite, modified 16 parts of coconut husk charcoal, 12 parts of ramee, diatom 11 parts of soil, 11 parts of palygorskite, 9 parts of perlite, 6 parts of lime tree sawdust, 5 parts of pine needle meal;The chitosan magnetic graft polypropylene acyl The granularity of amine is 200 mesh;The ramee is single filiform, and length is 1.1cm.
In the present embodiment, the preparation method of the modified coconut husk charcoal is the same as embodiment one.
In the present embodiment, the extraction of the fatty enzyme solution of the activation method of the Pseudomonas aeruginosa and Pseudomonas aeruginosa secretion generation Method is the same as embodiment one.
In the present embodiment, the preparation method of the chitosan magnetic grafted polyacrylamide includes the following steps:
(1) it is 0.58 to press mass volume ratio:Chitosan is completely dissolved in a concentration of 1% acetic acid aqueous solution by 100ml, Chitosan acetic acid solution is made, then heats to 45 DEG C, and keep constant temperature;
(2) it is 10 by volume:1 the ammonium ceric nitrate of a concentration of 0.2mol/L is added into the chitosan acetic acid solution of constant temperature Aqueous solution, and 30min is stirred to react with the mixing speed of 200r/min, the mass ratio for pressing chitosan and acrylamide later is 1: 2 are added acrylamide, continue to be stirred to react 180min with the mixing speed of 200r/min, mixed solution A is made;
(3) it is 2 by volume:1 the mixed aqueous solution of iron chloride and ferrous sulfate is added into mixed solution A, with 300r/ The mixing speed of min stirs evenly, and adjusts pH to 9~10 (being adjusted with the NaOH of 2mol/L), and mixed solution B is made;
(4) it is 160 by volume:After 1 is added epoxychloropropane into mixed solution B, 60 DEG C are warming up to, and with 400r/ The mixing speed of min is stirred to react 60min, then stops stirring, stands 120min, then carries out Magneto separate processing, refilters, Collect solid matter;
(5) absolute ethyl alcohol washed solid is used, until filtrate is in neutrality, the solid after then being washed with soaked in absolute ethyl alcohol Substance 2h, then the solid matter of gained is dried to get chitosan magnetic grafted polyacrylamide;
In the step (3), configured by a concentration of 0.4mol/L of iron chloride and a concentration of 0.2mol/L of ferrous sulfate The mixed aqueous solution of iron chloride and ferrous sulfate.
The method of the water treatment agent provided in this embodiment for being used to prepare high-efficiency environment friendly is the same as embodiment one.
Example IV
The raw material of the water treatment agent of high-efficiency environment friendly provided in this embodiment, the inorganic agent includes such as the following group by weight Point:50 parts of chitosan magnetic grafted polyacrylamide, 22 parts of expanded graphite, modified 15 parts of coconut husk charcoal, 13 parts of ramee, diatom 10 parts of soil, 12 parts of palygorskite, 8 parts of perlite, 8 parts of lime tree sawdust, 4 parts of pine needle meal;The chitosan magnetic graft polypropylene acyl The granularity of amine is 200 mesh;The ramee is single filiform, and length is 1.0cm.
In the present embodiment, the preparation method of the modified coconut husk charcoal is the same as embodiment one.
In the present embodiment, the extraction of the fatty enzyme solution of the activation method of the Pseudomonas aeruginosa and Pseudomonas aeruginosa secretion generation Method is the same as embodiment one.
In the present embodiment, the preparation method of the chitosan magnetic grafted polyacrylamide includes the following steps:
(1) it is 1.16g to press mass volume ratio:Chitosan is completely dissolved in a concentration of 2% acetic acid aqueous solution by 100ml In, chitosan acetic acid solution is made, then heats to 45 DEG C, and keep constant temperature;
(2) it is 10 by volume:1 the ammonium ceric nitrate of a concentration of 0.2mol/L is added into the chitosan acetic acid solution of constant temperature Aqueous solution, and 30min is stirred to react with the mixing speed of 200r/min, the mass ratio for pressing chitosan and acrylamide later is 1: 1 is added acrylamide, continues to be stirred to react 180min with the mixing speed of 200r/min, mixed solution A is made;
(3) it is 2 by volume:1 the mixed aqueous solution of iron chloride and ferrous sulfate is added into mixed solution A, with 300r/ The mixing speed of min stirs evenly, and adjusts pH to 9~10 (being adjusted with the NaOH of 2mol/L), and mixed solution B is made;
(4) it is 55 by volume:After 1 is added epoxychloropropane into mixed solution B, 60 DEG C are warming up to, and with 400r/ The mixing speed of min is stirred to react 60min, then stops stirring, stands 120min, then carries out Magneto separate processing, refilters, Collect solid matter;
(5) absolute ethyl alcohol washed solid is used, until filtrate is in neutrality, the solid after then being washed with soaked in absolute ethyl alcohol Substance 2h, then the solid matter of gained is dried to get chitosan magnetic grafted polyacrylamide;
In the step (3), configured by a concentration of 0.4mol/L of iron chloride and a concentration of 0.4mol/L of ferrous sulfate The mixed aqueous solution of iron chloride and ferrous sulfate.
The method of the water treatment agent provided in this embodiment for being used to prepare high-efficiency environment friendly is the same as embodiment one.
Embodiment five
The raw material of the water treatment agent of high-efficiency environment friendly provided in this embodiment, the inorganic agent includes such as the following group by weight Point:50 parts of chitosan magnetic grafted polyacrylamide, 20 parts of expanded graphite, modified 15 parts of coconut husk charcoal, 12 parts of ramee, diatom 10 parts of soil, 10 parts of palygorskite, 8 parts of perlite, 5 parts of lime tree sawdust, 4 parts of pine needle meal;The chitosan magnetic graft polypropylene acyl The granularity of amine is 200 mesh;The ramee is single filiform, and length is 1.0cm.
In the present embodiment, the preparation method of the modified coconut husk charcoal is the same as embodiment one.
In the present embodiment, the extraction of the fatty enzyme solution of the activation method of the Pseudomonas aeruginosa and Pseudomonas aeruginosa secretion generation Method is the same as embodiment one.
In the present embodiment, the preparation method of the chitosan magnetic grafted polyacrylamide includes the following steps:
(1) it is 1.16g to press mass volume ratio:Chitosan is completely dissolved in a concentration of 2% acetic acid aqueous solution by 100ml In, chitosan acetic acid solution is made, then heats to 45 DEG C, and keep constant temperature;
(2) it is 10 by volume:1 the ammonium ceric nitrate of a concentration of 0.2mol/L is added into the chitosan acetic acid solution of constant temperature Aqueous solution, and 30min is stirred to react with the mixing speed of 200r/min, the mass ratio for pressing chitosan and acrylamide later is 1: 1 is added acrylamide, continues to be stirred to react 180min with the mixing speed of 200r/min, mixed solution A is made;
(3) it is 2 by volume:1 the mixed aqueous solution of iron chloride and ferrous sulfate is added into mixed solution A, with 300r/ The mixing speed of min stirs evenly, and adjusts pH to 9~10 (being adjusted with the NaOH of 2mol/L), and mixed solution B is made;
(4) it is 55 by volume:After 1 is added epoxychloropropane into mixed solution B, 60 DEG C are warming up to, and with 400r/ The mixing speed of min is stirred to react 60min, then stops stirring, stands 120min, then carries out Magneto separate processing, refilters, Collect solid matter;
(5) absolute ethyl alcohol washed solid is used, until filtrate is in neutrality, the solid after then being washed with soaked in absolute ethyl alcohol Substance 2h, then the solid matter of gained is dried to get chitosan magnetic grafted polyacrylamide;
In the step (3), configured by a concentration of 0.4mol/L of iron chloride and a concentration of 0.4mol/L of ferrous sulfate The mixed aqueous solution of iron chloride and ferrous sulfate.
The method of the water treatment agent provided in this embodiment for being used to prepare high-efficiency environment friendly is the same as embodiment one.
Water treatment agent made from Example one to embodiment five handles certain plant effuent;Processing method is:With Mass volume ratio is 0.25g:Water treatment agent is added into sewage by 1L, with the rotating speed stir process 8h of 150r/min;Test processes Front and back COD value, the concentration of contained heavy metal ion and the quantity of microorganism calculates removal rate, as a result see the table below 1.
Table 1
As seen from the above table, the water treatment agent prepared using above-described embodiment, which can efficiently remove the major part in sewage, to be had Machine object and heavy metal element, additionally it is possible to preferably kill the microorganism in water body, there is good purifying water effect.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although with reference to compared with Good embodiment describes the invention in detail, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this In the right of invention.

Claims (7)

1. a kind of water treatment agent of high-efficiency environment friendly, it is characterised in that:The raw material of the inorganic agent includes following component by weight: 50-53 parts of chitosan magnetic grafted polyacrylamide, 20-22 parts of expanded graphite, modified 15-18 parts of coconut husk charcoal, ramee 12- 13 parts, 10-12 parts of diatomite, 10-12 parts of palygorskite, 8-9 parts of perlite, 5-8 parts of lime tree sawdust, 4-6 parts of pine needle meal.
2. the water treatment agent of high-efficiency environment friendly according to claim 1, it is characterised in that:The raw material of the inorganic agent is by weight Part includes following component:51 parts of chitosan magnetic grafted polyacrylamide, 21 parts of expanded graphite, modified 16 parts of coconut husk charcoal, ramie 12 parts of fiber, 11 parts of diatomite, 11 parts of palygorskite, 9 parts of perlite, 6 parts of lime tree sawdust, 5 parts of pine needle meal.
3. the water treatment agent of high-efficiency environment friendly according to claim 1 or 2, it is characterised in that:The system of the modified coconut husk charcoal Preparation Method is:It is 1 in mass ratio:The fatty enzyme solution that 3.5 mixing coconut husk charcoals and Pseudomonas aeruginosa secretion generate, being subsequently placed in rotating speed is In the shaking table of 155r/min, 6h is handled at 35 DEG C, is filtered and is dried to get modified coconut husk charcoal.
4. the water treatment agent of high-efficiency environment friendly according to claim 1, it is characterised in that:The chitosan magnetic grafting poly- third The granularity of acrylamide is 200 mesh.
5. the water treatment agent of high-efficiency environment friendly according to claim 1, it is characterised in that:
The preparation method of the chitosan magnetic grafted polyacrylamide includes the following steps:
(1) it is 0.58-1.16g to press mass volume ratio:The acetic acid that chitosan is completely dissolved in a concentration of 1-2% by 100ml is water-soluble In liquid, chitosan acetic acid solution is made, then heats to 45 DEG C, and keep constant temperature;
(2) it is 10 by volume:1 be added into the chitosan acetic acid solution of constant temperature a concentration of 0.2mol/L ammonium ceric nitrate it is water-soluble Liquid, and 30min is stirred to react with the mixing speed of 200r/min, the mass ratio for pressing chitosan and acrylamide later is 1:1-3 Acrylamide is added, continues to be stirred to react 180min with the mixing speed of 200r/min, mixed solution A is made;
(3) it is 2 by volume:1 the mixed aqueous solution of iron chloride and ferrous sulfate is added into mixed solution A, with 300r/min Mixing speed stir evenly, and adjust pH to 9~10, mixed solution B be made;
(4) it is by volume 55-160:After 1 is added epoxychloropropane into mixed solution B, 60 DEG C are warming up to, and with 400r/ The mixing speed of min is stirred to react 60min, then stops stirring, stands 120min, then carries out Magneto separate processing, refilters, Collect solid matter;
(5) absolute ethyl alcohol washed solid is used, until filtrate is in neutrality, the solid matter after then being washed with soaked in absolute ethyl alcohol 2h, then the solid matter of gained is dried to get chitosan magnetic grafted polyacrylamide;
In the step (3), configured by a concentration of 0.4mol/L of iron chloride and a concentration of 0.2-0.4mol/L of ferrous sulfate The mixed aqueous solution of iron chloride and ferrous sulfate.
6. the water treatment agent of high-efficiency environment friendly according to claim 1, it is characterised in that:The ramee is individual thread Shape, and length is 1.0cm-1.2cm.
7. a kind of method for the water treatment agent being used to prepare high-efficiency environment friendly, it is characterised in that:Include the following steps:Magnetic crust is gathered Sugared grafted polyacrylamide, expanded graphite, modified coconut husk charcoal, diatomite, palygorskite and perlite mixing are simultaneously ground into granularity and are After 200 mesh powders, ramee, lime tree sawdust, pine needle meal is added and is enough to impregnate the deionized water of all raw material components, stirs Mixing keeps ramee, lime tree sawdust and pine needle meal fully dispersed, then filters, and collects solid mixture, then by solid mixture Drying, the as water treatment agent of high-efficiency environment friendly.
CN201810394420.0A 2018-04-27 2018-04-27 Water treatment agent of high-efficiency environment friendly and preparation method thereof Pending CN108545798A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810394420.0A CN108545798A (en) 2018-04-27 2018-04-27 Water treatment agent of high-efficiency environment friendly and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810394420.0A CN108545798A (en) 2018-04-27 2018-04-27 Water treatment agent of high-efficiency environment friendly and preparation method thereof

Publications (1)

Publication Number Publication Date
CN108545798A true CN108545798A (en) 2018-09-18

Family

ID=63512893

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810394420.0A Pending CN108545798A (en) 2018-04-27 2018-04-27 Water treatment agent of high-efficiency environment friendly and preparation method thereof

Country Status (1)

Country Link
CN (1) CN108545798A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110436556A (en) * 2019-07-29 2019-11-12 平武县颐生泉生物科技开发有限公司 A kind of drink water purifying method
CN113321317A (en) * 2021-05-31 2021-08-31 杨丰彰 Domestic sewage purifying agent and preparation method thereof
CN115821581A (en) * 2022-10-29 2023-03-21 海南大学 Coconut residue fiber with high cholate adsorbability and preparation method and application thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101129339A (en) * 2007-07-27 2008-02-27 东华大学 Method of producing nano magnetic chitosan composite particle for photodynamic medicament carrier
CN101302273A (en) * 2008-06-30 2008-11-12 重庆大学 Preparation of chitose-acrylic amide graft copolymerization flocculant
CN101882496A (en) * 2009-05-04 2010-11-10 杨琥 Chitosan-polyacrylamide magnetic composite microsphere material, preparation method and application thereof
CN103861568A (en) * 2014-03-28 2014-06-18 西南石油大学 Preparation method and application of magnetic chitosan nanometer material
CN104448131A (en) * 2014-11-11 2015-03-25 南京工业大学 Preparation method of porous magnetic polyacrylamide (PAM) microsphere adsorbent
CN107243331A (en) * 2017-08-14 2017-10-13 重庆工程职业技术学院 Environment-friendly type water purification bag for water process and preparation method thereof
CN107930590A (en) * 2017-11-28 2018-04-20 重庆科技学院 The efficient acticarbon of resistance to strong-acid type

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101129339A (en) * 2007-07-27 2008-02-27 东华大学 Method of producing nano magnetic chitosan composite particle for photodynamic medicament carrier
CN101302273A (en) * 2008-06-30 2008-11-12 重庆大学 Preparation of chitose-acrylic amide graft copolymerization flocculant
CN101882496A (en) * 2009-05-04 2010-11-10 杨琥 Chitosan-polyacrylamide magnetic composite microsphere material, preparation method and application thereof
CN103861568A (en) * 2014-03-28 2014-06-18 西南石油大学 Preparation method and application of magnetic chitosan nanometer material
CN104448131A (en) * 2014-11-11 2015-03-25 南京工业大学 Preparation method of porous magnetic polyacrylamide (PAM) microsphere adsorbent
CN107243331A (en) * 2017-08-14 2017-10-13 重庆工程职业技术学院 Environment-friendly type water purification bag for water process and preparation method thereof
CN107930590A (en) * 2017-11-28 2018-04-20 重庆科技学院 The efficient acticarbon of resistance to strong-acid type

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110436556A (en) * 2019-07-29 2019-11-12 平武县颐生泉生物科技开发有限公司 A kind of drink water purifying method
CN113321317A (en) * 2021-05-31 2021-08-31 杨丰彰 Domestic sewage purifying agent and preparation method thereof
CN115821581A (en) * 2022-10-29 2023-03-21 海南大学 Coconut residue fiber with high cholate adsorbability and preparation method and application thereof

Similar Documents

Publication Publication Date Title
CN109534513B (en) Method for purifying aquaculture wastewater in situ by biochar-enhanced bacteria-algae immobilized preparation
CN108545798A (en) Water treatment agent of high-efficiency environment friendly and preparation method thereof
CN107827502B (en) A kind of method that kitchen waste compost is used for soil improvement
CN106947722B (en) Microbial agent, preparation method thereof and application thereof in sewage treatment
CN108949739A (en) A kind of complex micro organism fungicide and preparation method thereof for advanced treating high concentration livestock breeding wastewater
CN104445816B (en) A kind of ammonia nitrogen in high density that processes is raised pigs the method for biogas slurry
CN109082393A (en) One kind can be used for Treating Municipal Sewage microbial bacterial agent and preparation method thereof
CN107828774B (en) Preparation method of magnetic saccharomyces cerevisiae composite material for degrading atrazine
CN103232116A (en) Method for treating heavy-metal wastewater by using biological water purifying agent prepared from cyanobacteria bloom
CN107840545A (en) Process for treating industrial waste water
CN208095731U (en) A kind of water circulation type fresh-water fishes ecology fishpond
CN114671531B (en) Livestock breeding sewage purifying agent and preparation method thereof
CN107673481B (en) Aquaculture water body purifying agent and preparation method thereof
CN102863116A (en) Method and device for repeatedly utilizing ramie biological degumming waste water
CN105111513B (en) A kind of composite membrane and its application based on modified natural polymer
CN102127517B (en) Strain with heavy metal tolerance and applications thereof
CN108585179A (en) A kind of complex microorganism preparations of water pollution control and preparation method thereof
CN108786750A (en) Adsorbent and preparation method thereof for purifying VOCs in air
CN105110486A (en) Method for removing tetracycline from water by virtue of microbial flocculant
CN102294227B (en) Preparation method and application method of chlorella seawater purifying biological adsorbent
CN108862453A (en) High effect nontoxic type sewage-treating agent and preparation method thereof
CN105586331A (en) Method of denitrified composite microbial inoculant
CN113860512B (en) Indigenous algicidal bacterium activating agent and method for preventing cyanobacterial bloom by adopting same
CN109467156A (en) Landfill leachate multifunctional water treating agent and preparation method thereof
CN107930590A (en) The efficient acticarbon of resistance to strong-acid type

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20180918

RJ01 Rejection of invention patent application after publication