CN105921120A - Method for preparing magnetic composite adsorption material from shells - Google Patents
Method for preparing magnetic composite adsorption material from shells Download PDFInfo
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- CN105921120A CN105921120A CN201610267283.5A CN201610267283A CN105921120A CN 105921120 A CN105921120 A CN 105921120A CN 201610267283 A CN201610267283 A CN 201610267283A CN 105921120 A CN105921120 A CN 105921120A
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- 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
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/041—Oxides or hydroxides
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- 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
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- 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
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- 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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28009—Magnetic properties
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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
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- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
- B01J2220/4881—Residues from shells, e.g. eggshells, mollusk shells
-
- 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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- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Inorganic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
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- Meat, Egg Or Seafood Products (AREA)
Abstract
The invention discloses a method for preparing a magnetic composite adsorption material from shells, and belongs to the field of adsorption materials. The preparation method comprises the following steps: chemically modifying scallop shells to form micro-pores with a large specific surface area in the scallop shells, biologically modifying the chemically modified scallop shells by culturing fungi in the micro-pores to increase the adsorption effect, and compounding the shells with iron oxide to generate the magnetic composite adsorption material. The adsorption material is prepared through using the structure of the scallop shells, chemical and biological modifications are carried out to increase the adsorption capacity, and compounding of the modified scallop shells with the iron oxide makes the adsorption material be separated from a solution through magnetic separation; the adsorption material can be conveniently and repeatedly used, and the scallop shells are cheap, can be naturally degraded, and have no pollution to environment.
Description
Technical field
The invention discloses a kind of method utilizing shell to prepare magnetic coupling sorbing material, belong to sorbing material field.
Background technology
Along with socioeconomic development, increasing to the demand of water, but on the one hand the water resource of China is the most in short supply, and on the other hand water pollution is quite serious, and the heavy metal pollution that particularly industry such as plating, metallurgy, pigment causes is startling.The technology processing effluent containing heavy metal ions has chemical precipitation method, electrochemical process, absorption method and membrane separation process etc. at present, also has some new technology such as nanometer technology, photocatalytic method, New Type of Mesoporous material and gene treatment technology etc..
Traditional adsorbent is divided into inorganic adsorbent and organic adsorbent, traditional inorganic adsorbent has perlite, vermiculite, clay, diatomite, organic adsorbent has polypropylene, polyurethane foam etc., but these organic adsorbents cannot be degraded automatically, thus the product after absorption can cause the pollution that environment is new.Oyster shell whiting, as a kind of cheap natural cleaning material, is a kind of respond well adsorbent, utilize oyster shell whiting that natural seashell makes to the technology processing heavy metal pollution in wastewater become the waste water of a kind of high-efficiency environment friendly process means and by common concern.But current oyster shell whiting limited sorption capacity, therefore makes it apply and is extremely restricted.
Summary of the invention
nullThe technical problem that present invention mainly solves: cannot degrade voluntarily for great majority in conventional adsorbent，Product after absorption can cause the pollution that environment is new，And the shortcoming that adsorbent separates difficulty，Provide a kind of method utilizing shell to prepare magnetic coupling sorbing material，The present invention makes it be internally formed the micropore that specific surface area is big after scallop shell is carried out chemical modification，In micropore, mushroom is cultivated again by bio-modification，Increase adsorption effect，Last and ferriferous oxide carries out composition generation magnetic coupling sorbing material，The present invention utilizes the structure of scallop shell self to be prepared into sorbing material，Again by chemistry、Bio-modification，Increase its adsorbance，Quickly sorbing material can be separated from solution with Magneto separate after compound with iron oxide，Repeated multiple times use can be facilitated，And scallop shell low cost，Can be with natural degradation，Environment will not be produced and pollute.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is:
(1) 200～400g scallop shells are taken, surface clean totally and is removed internal residual impurity, put in baking oven, it is dried completely at 80～90 DEG C, it is to soak 30～50min in 0.5mol/L hydrochloric acid solution that dried scallop shell is put into concentration, filter after immersion and take out, by scallop shell clean water surface 1～3 times, natural air drying after cleaning；
(2) scallop shell after above-mentioned air-drying is put into first calcining 30～40min at 300～500 DEG C in Muffle furnace, it is warmed up at 800～1000 DEG C calcining 30～60min again, calcining is cooled to room temperature and takes out after terminating, and blows scallop shell surface with nitrogen, removes excessive powder；
(3) the scallop shell 1:2 in mass ratio after above-mentioned air blowing is added in beef extract, make beef extract that scallop shell is completely covered, then in scallop, add 1～2g thermotolerant yeast bacterium powder, it is placed at 37～45 DEG C and carries out cultivating 24～30h, cultivate and after terminating, the beef extract blade of shell surface is wiped off, leave behind the beef extract in scallop shell micropore, then scallop shell is put into immersion 10～14h in mass fraction 20% sucrose water by solid-to-liquid ratio 1:5, soak to filter after terminating and take out；
(4) scallop shell after above-mentioned immersion is put into and clear water soaks the beef extract removed in micropore, put into after filtration in baking oven, at 35～45 DEG C, be dried 6～8h, grind after drying, sieve to obtain 60～70 mesh scallop shell powder；
(5) take 10～12g ferrous sulfate and 8～9g iron chloride are dissolved in the deionized water of 250～300mL, the scallop shell powder of 8～10g above-mentioned preparations is added after mixing, mechanical agitation 30～50min, put into after stirring in water-bath, dripping 50～60mL concentration at a temperature of 50～60 DEG C while stirring in mixture is 3mol/L sodium hydroxide solution, control to drip off 15～20min, after dripping off, bath temperature is increased to 80 DEG C, it is aged 2～3h at a temperature of mixture is kept this, room temperature it is cooled to after ageing, centrifugation is taken out, put into after sediment is washed with deionized 3～5 times and vacuum drying is dried at 60～80 DEG C 3～5h, dried taking-up is magnetic coupling sorbing material.
The application process of the present invention: the method that the present invention prepares magnetic coupling sorbing material is applied in waste water process, in 5～10L heavy metal wastewater therebies, at room temperature, Xiang Shuizhong, by 2～5g/L addition magnetic Nano microsphere adsorbents, first records metal ion initial concentration and is respectively Cd2+It is 150～170mg/L, Zn2+It is 120～150mg/L, Pb2+It is 80～120mg/L, Cu2+Being 15～30mg/L, methylene blue concentration is 50～68mgL, and lemon yellow concentration is 15～20mg/L, and mix and blend 10～20min after addition record metal ion and are respectively Cd2+It is 8～15mg/L, Zn2+It is 6～8mg/L, Pb2+It is 4～6mg/L, Cu2+Being 2～4mg/L, methylene blue concentration is 0.1～0.3mgL, and lemon yellow concentration is 0.1～0.3mg/L.
The invention has the beneficial effects as follows:
(1) present invention utilizes the structure of scallop shell self to be prepared into sorbing material, then by chemistry, bio-modification, increases its adsorbance；
(2) sorbing material quickly can be separated after compound for scallop absorption material iron oxide from solution by the present invention with Magneto separate, can facilitate repeated multiple times use, and scallop shell low cost, can will not produce environment pollute with natural degradation.
Detailed description of the invention
First 200～400g scallop shells are taken, surface clean totally and is removed internal residual impurity, put in baking oven, it is dried completely at 80～90 DEG C, it is to soak 30～50min in 0.5mol/L hydrochloric acid solution that dried scallop shell is put into concentration, filter after immersion and take out, by scallop shell clean water surface 1～3 times, natural air drying after cleaning；Scallop shell after above-mentioned air-drying is put in Muffle furnace at 300～500 DEG C, first calcine 30～40min, it is warmed up at 800～1000 DEG C calcining 30～60min again, calcining is cooled to room temperature and takes out after terminating, and blows scallop shell surface with nitrogen, removes excessive powder；Scallop shell 1:2 in mass ratio after above-mentioned air blowing is added in beef extract, make beef extract that scallop shell is completely covered, then in scallop, add 1～2g thermotolerant yeast bacterium powder, it is placed at 37～45 DEG C and carries out cultivating 24～30h, cultivate and after terminating, the beef extract blade of shell surface is wiped off, leave behind the beef extract in scallop shell micropore, then scallop shell is put into immersion 10～14h in mass fraction 20% sucrose water by solid-to-liquid ratio 1:5, soak to filter after terminating and take out；Scallop shell after above-mentioned immersion is put into clear water soaks the beef extract removed in micropore, put into after filtration in baking oven, at 35～45 DEG C, be dried 6～8h, grind after drying, sieve to obtain 60～70 mesh scallop shell powder；Take 10～12g ferrous sulfate and 8～9g iron chloride are dissolved in the deionized water of 250～300mL, the scallop shell powder of 8～10g above-mentioned preparations is added after mixing, mechanical agitation 30～50min, put into after stirring in water-bath, dripping 50～60mL concentration at a temperature of 50～60 DEG C while stirring in mixture is 3mol/L sodium hydroxide solution, control to drip off 15～20min, after dripping off, bath temperature is increased to 80 DEG C, it is aged 2～3h at a temperature of mixture is kept this, room temperature it is cooled to after ageing, centrifugation is taken out, put into after sediment is washed with deionized 3～5 times and vacuum drying is dried at 60～80 DEG C 3～5h, dried taking-up is magnetic coupling sorbing material.
Example 1
First 200g scallop shell is taken, surface clean totally and is removed internal residual impurity, put in baking oven, it is dried completely at 80 DEG C, it is immersion 30min in 0.5mol/L hydrochloric acid solution that dried scallop shell is put into concentration, filter after immersion and take out, by scallop shell clean water surface 1 time, natural air drying after cleaning；Being put into by scallop shell after above-mentioned air-drying in Muffle furnace and first calcine 30min at 300 DEG C, then be warmed up at 800 DEG C calcine 30min, calcining is cooled to room temperature and takes out after terminating, and blows scallop shell surface with nitrogen, removes excessive powder；Scallop shell 1:2 in mass ratio after above-mentioned air blowing is added in beef extract, make beef extract that scallop shell is completely covered, then in scallop, add 1g thermotolerant yeast bacterium powder, it is placed at 37 DEG C and carries out cultivating 24h, cultivate and after terminating, the beef extract blade of shell surface is wiped off, leave behind the beef extract in scallop shell micropore, then scallop shell is put into immersion 10h in mass fraction 20% sucrose water by solid-to-liquid ratio 1:5, soak to filter after terminating and take out；Scallop shell after above-mentioned immersion is put into clear water soaks the beef extract removed in micropore, put into after filtration in baking oven, at 35 DEG C, be dried 6h, grind after drying, sieve to obtain 60 mesh scallop shell powder；Take 10g ferrous sulfate and 8g iron chloride is dissolved in the deionized water of 250mL, the scallop shell powder of the above-mentioned preparation of 8g is added after mixing, mechanical agitation 30min, put into after stirring in water-bath, dripping 50mL concentration at a temperature of 50 DEG C while stirring in mixture is 3mol/L sodium hydroxide solution, control to drip off at 15min, after dripping off, bath temperature is increased to 80 DEG C, it is aged 2h at a temperature of mixture is kept this, room temperature it is cooled to after ageing, centrifugation is taken out, put into after sediment is washed with deionized 3 times and vacuum drying is dried at 60 DEG C 3h, dried taking-up is magnetic coupling sorbing material.
The method that the present invention prepares magnetic coupling sorbing material is applied in waste water process, and in 5L heavy metal wastewater thereby, at room temperature, Xiang Shuizhong presses 2g/L and adds magnetic Nano microsphere adsorbent, first records metal ion initial concentration and is respectively Cd2+For 150mg/L, Zn2+For 120mg/L, Pb2+For 80mg/L, Cu2+For 15mg/L, methylene blue concentration is 50mgL, and lemon yellow concentration is 15mg/L, and mix and blend 10min after addition records metal ion and is respectively Cd2+For 8mg/L, Zn2+For 6mg/L, Pb2+For 4mg/L, Cu2+For 2mg/L, methylene blue concentration is 0.1mgL, and lemon yellow concentration is 0.1mg/L.
Example 2
First 300g scallop shell is taken, surface clean totally and is removed internal residual impurity, put in baking oven, it is dried completely at 85 DEG C, it is immersion 40min in 0.5mol/L hydrochloric acid solution that dried scallop shell is put into concentration, filter after immersion and take out, by scallop shell clean water surface 2 times, natural air drying after cleaning；Being put into by scallop shell after above-mentioned air-drying in Muffle furnace and first calcine 35min at 400 DEG C, then be warmed up at 900 DEG C calcine 45min, calcining is cooled to room temperature and takes out after terminating, and blows scallop shell surface with nitrogen, removes excessive powder；Scallop shell 1:2 in mass ratio after above-mentioned air blowing is added in beef extract, make beef extract that scallop shell is completely covered, then in scallop, add 1.5g thermotolerant yeast bacterium powder, it is placed at 40 DEG C and carries out cultivating 28h, cultivate and after terminating, the beef extract blade of shell surface is wiped off, leave behind the beef extract in scallop shell micropore, then scallop shell is put into immersion 12h in mass fraction 20% sucrose water by solid-to-liquid ratio 1:5, soak to filter after terminating and take out；Scallop shell after above-mentioned immersion is put into clear water soaks the beef extract removed in micropore, put into after filtration in baking oven, at 40 DEG C, be dried 7h, grind after drying, sieve to obtain 65 mesh scallop shell powder；Take 11g ferrous sulfate and 9g iron chloride is dissolved in the deionized water of 275mL, the scallop shell powder of the above-mentioned preparation of 9g is added after mixing, mechanical agitation 40min, put into after stirring in water-bath, dripping 55mL concentration at a temperature of 55 DEG C while stirring in mixture is 3mol/L sodium hydroxide solution, control to drip off at 17min, after dripping off, bath temperature is increased to 80 DEG C, it is aged 2.5h at a temperature of mixture is kept this, room temperature it is cooled to after ageing, centrifugation is taken out, put into after sediment is washed with deionized 4 times and vacuum drying is dried at 70 DEG C 4h, dried taking-up is magnetic coupling sorbing material.
The method that the present invention prepares magnetic coupling sorbing material is applied in waste water process, and in 8L heavy metal wastewater thereby, at room temperature, Xiang Shuizhong presses 3g/L and adds magnetic Nano microsphere adsorbent, first records metal ion initial concentration and is respectively Cd2+For 160mg/L, Zn2+For 135mg/L, Pb2+For 100mg/L, Cu2+For 20mg/L, methylene blue concentration is 60mgL, and lemon yellow concentration is 17mg/L, and mix and blend 15min after addition records metal ion and is respectively Cd2+For 12mg/L, Zn2+For 7mg/L, Pb2+For 5mg/L, Cu2+For 3mg/L, methylene blue concentration is 0.2mgL, and lemon yellow concentration is 0.2mg/L.
Example 3
First 400g scallop shell is taken, surface clean totally and is removed internal residual impurity, put in baking oven, it is dried completely at 90 DEG C, it is immersion 50min in 0.5mol/L hydrochloric acid solution that dried scallop shell is put into concentration, filter after immersion and take out, by scallop shell clean water surface 3 times, natural air drying after cleaning；Being put into by scallop shell after above-mentioned air-drying in Muffle furnace and first calcine 40min at 500 DEG C, then be warmed up at 1000 DEG C calcine 60min, calcining is cooled to room temperature and takes out after terminating, and blows scallop shell surface with nitrogen, removes excessive powder；Scallop shell 1:2 in mass ratio after above-mentioned air blowing is added in beef extract, make beef extract that scallop shell is completely covered, then in scallop, add 2g thermotolerant yeast bacterium powder, it is placed at 45 DEG C and carries out cultivating 30h, cultivate and after terminating, the beef extract blade of shell surface is wiped off, leave behind the beef extract in scallop shell micropore, then scallop shell is put into immersion 14h in mass fraction 20% sucrose water by solid-to-liquid ratio 1:5, soak to filter after terminating and take out；Scallop shell after above-mentioned immersion is put into clear water soaks the beef extract removed in micropore, put into after filtration in baking oven, at 45 DEG C, be dried 8h, grind after drying, sieve to obtain 70 mesh scallop shell powder；Take 12g ferrous sulfate and 9g iron chloride is dissolved in the deionized water of 300mL, the scallop shell powder of the above-mentioned preparation of 10g is added after mixing, mechanical agitation 50min, put into after stirring in water-bath, dripping 60mL concentration at a temperature of 60 DEG C while stirring in mixture is 3mol/L sodium hydroxide solution, control to drip off at 20min, after dripping off, bath temperature is increased to 80 DEG C, it is aged 3h at a temperature of mixture is kept this, room temperature it is cooled to after ageing, centrifugation is taken out, put into after sediment is washed with deionized 5 times and vacuum drying is dried at 80 DEG C 5h, dried taking-up is magnetic coupling sorbing material.
The method that the present invention prepares magnetic coupling sorbing material is applied in waste water process, and in 10L heavy metal wastewater thereby, at room temperature, Xiang Shuizhong presses 5g/L and adds magnetic Nano microsphere adsorbent, first records metal ion initial concentration and is respectively Cd2+For 170mg/L, Zn2+For 150mg/L, Pb2+For 120mg/L, Cu2+For 30mg/L, methylene blue concentration is 68mgL, and lemon yellow concentration is 20mg/L, and mix and blend 20min after addition records metal ion and is respectively Cd2+For 15mg/L, Zn2+For 8mg/L, Pb2+For 6mg/L, Cu2+Being 2～4mg/L, methylene blue concentration is 0.3mgL, and lemon yellow concentration is 0.3mg/L.
Claims (1)
1. one kind utilizes the method that shell prepares magnetic coupling sorbing material, it is characterised in that concrete preparation process is:
(1) 200～400g scallop shells are taken, surface clean totally and is removed internal residual impurity, put in baking oven, it is dried completely at 80～90 DEG C, it is to soak 30～50min in 0.5mol/L hydrochloric acid solution that dried scallop shell is put into concentration, filter after immersion and take out, by scallop shell clean water surface 1～3 times, natural air drying after cleaning；
(2) scallop shell after above-mentioned air-drying is put into first calcining 30～40min at 300～500 DEG C in Muffle furnace, it is warmed up at 800～1000 DEG C calcining 30～60min again, calcining is cooled to room temperature and takes out after terminating, and blows scallop shell surface with nitrogen, removes excessive powder；
(3) the scallop shell 1:2 in mass ratio after above-mentioned air blowing is added in beef extract, make beef extract that scallop shell is completely covered, then in scallop, add 1～2g thermotolerant yeast bacterium powder, it is placed at 37～45 DEG C and carries out cultivating 24～30h, cultivate and after terminating, the beef extract blade of shell surface is wiped off, leave behind the beef extract in scallop shell micropore, then scallop shell is put into immersion 10～14h in mass fraction 20% sucrose water by solid-to-liquid ratio 1:5, soak to filter after terminating and take out；
(4) scallop shell after above-mentioned immersion is put into and clear water soaks the beef extract removed in micropore, put into after filtration in baking oven, at 35～45 DEG C, be dried 6～8h, grind after drying, sieve to obtain 60～70 mesh scallop shell powder；
(5) take 10～12g ferrous sulfate and 8～9g iron chloride are dissolved in the deionized water of 250～300mL, the scallop shell powder of 8～10g above-mentioned preparations is added after mixing, mechanical agitation 30～50min, put into after stirring in water-bath, dripping 50～60mL concentration at a temperature of 50～60 DEG C while stirring in mixture is 3mol/L sodium hydroxide solution, control to drip off 15～20min, after dripping off, bath temperature is increased to 80 DEG C, it is aged 2～3h at a temperature of mixture is kept this, room temperature it is cooled to after ageing, centrifugation is taken out, put into after sediment is washed with deionized 3～5 times and vacuum drying is dried at 60～80 DEG C 3～5h, dried taking-up is magnetic coupling sorbing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610267283.5A CN105921120A (en) | 2016-04-27 | 2016-04-27 | Method for preparing magnetic composite adsorption material from shells |
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| CN201610267283.5A CN105921120A (en) | 2016-04-27 | 2016-04-27 | Method for preparing magnetic composite adsorption material from shells |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110841611A (en) * | 2019-09-30 | 2020-02-28 | 浙江海洋大学 | Application of modified mussel shell to adsorption of methylene blue |
| CN111821951A (en) * | 2020-07-06 | 2020-10-27 | 杭州电子科技大学 | Recyclable nitrogen and phosphorus synchronous adsorbent and preparation method and application thereof |
-
2016
- 2016-04-27 CN CN201610267283.5A patent/CN105921120A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110841611A (en) * | 2019-09-30 | 2020-02-28 | 浙江海洋大学 | Application of modified mussel shell to adsorption of methylene blue |
| CN110841611B (en) * | 2019-09-30 | 2021-11-09 | 浙江海洋大学 | Application of modified mussel shell to adsorption of methylene blue |
| CN111821951A (en) * | 2020-07-06 | 2020-10-27 | 杭州电子科技大学 | Recyclable nitrogen and phosphorus synchronous adsorbent and preparation method and application thereof |
| CN111821951B (en) * | 2020-07-06 | 2023-04-28 | 杭州电子科技大学 | Recoverable nitrogen-phosphorus synchronous adsorbent and preparation method and application thereof |
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Application publication date: 20160907 |