CN108993450A - A kind of low toxic and environment-friendly adsorbent and preparation method thereof, application - Google Patents
A kind of low toxic and environment-friendly adsorbent and preparation method thereof, application Download PDFInfo
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- CN108993450A CN108993450A CN201811052232.6A CN201811052232A CN108993450A CN 108993450 A CN108993450 A CN 108993450A CN 201811052232 A CN201811052232 A CN 201811052232A CN 108993450 A CN108993450 A CN 108993450A
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- 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
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
- B01J20/0229—Compounds of Fe
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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
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0248—Compounds of B, Al, Ga, In, Tl
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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
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/027—Compounds of F, Cl, Br, I
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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
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0274—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04 characterised by the type of anion
- B01J20/0281—Sulfates of compounds other than those provided for in B01J20/045
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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
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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
- B01J20/26—Synthetic macromolecular compounds
- B01J20/262—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds, e.g. obtained by polycondensation
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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
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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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
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
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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
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
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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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- 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
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
Abstract
The invention discloses a kind of low toxic and environment-friendly adsorbents, its raw material includes: 20-30 parts of plant fiber by weight, 10-20 parts of coal gangue powder, 4-8 parts of polyethylene glycol, 1-2 parts of carboxymethyl cellulose, 70-90 parts of sulfuric acid solution, 8-16 parts of polyvinyl, 20-30 parts of poly-silicic acid iron sulfate, 8-12 parts of poly- phosphorus aluminium chloride, 4-10 parts of ferrous sulfate, 2-4 parts of poly- phosphorus iron chloride, 4-8 parts of complex microsphere, prefabricated material 10-14 parts, 2-4 parts of sodium metasilicate, 1-2 parts of potassium ferrate, 1-2 parts of hyaluronic acid, 2-4 parts of microcrystalline cellulose.Complex microsphere is prepared using following technique: humic acid, sodium hydroxide solution are stirred, regulation system is in neutrality, nano-titanium dioxide is added, room temperature concussion, filtering, centrifugation, lower layer's pellet frozen are dry, aluminium hydroxide, hexadecyltrimethylammonium chloride, silane coupling agent is added to be uniformly mixed, spray drying obtains complex microsphere.
Description
Technical field
The present invention relates to water-treatment technology fields more particularly to a kind of low toxic and environment-friendly adsorbent and preparation method thereof, application.
Background technique
Due to flowing into a large amount of sanitary sewages in China river, Water phosphorus content certainly will excessively cause aquatile and indigo plant
The undue growth and breeding of the algae such as algae, chlorella so that dissolved oxygen content in water body be caused to decline, and then cause aquatic animal
The water pollution that can aggravate river with the organism of the mortality of water plant, and corruption, along with river water body flows
Property it is poor, still black smelly phenomenon seasonal can occur for villages and small towns river, seriously affect the life and physical and mental health of neighbouring resident.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of low toxic and environment-friendly adsorbent and its preparation sides
Method, application, gained low toxic and environment-friendly adsorbent can effectively remove heavy metal ion and organic pollutant in river sewage, material
From a wealth of sources and not phosphorous, nontoxic, easily biological-degradable not can cause environmental pollution, and have higher economic benefit, can be
Sewage treatment industry is promoted, and has significant practical value and vast market prospect.
A kind of low toxic and environment-friendly adsorbent proposed by the present invention, raw material include: 20-30 parts of plant fiber by weight, coal
10-20 parts of spoil powder, 4-8 parts of polyethylene glycol, 1-2 parts of carboxymethyl cellulose, 70-90 parts of sulfuric acid solution, polyvinyl 8-
16 parts, 20-30 parts of poly-silicic acid iron sulfate, 8-12 parts of poly- phosphorus aluminium chloride, 4-10 parts of ferrous sulfate, 2-4 parts of poly- phosphorus iron chloride is compound
4-8 parts of microballoon, prefabricated material 10-14 parts, 2-4 parts of sodium metasilicate, 1-2 parts of potassium ferrate, 1-2 parts of hyaluronic acid, microcrystalline cellulose 2-4
Part.
Preferably, plant fiber is at least one of bagasse, coconut husk, stalk, corncob, peanut shell.
Preferably, coal gangue powder average particle size is 70-100 mesh.
Preferably, sulfuric acid solution concentration is 55-62wt%.
Preferably, complex microsphere is prepared using following technique: humic acid, sodium hydroxide solution being stirred, regulation system is in
Nano-titanium dioxide is added in neutrality, and room temperature concussion is filtered, and centrifugation, lower layer's pellet frozen is dry, and aluminium hydroxide, hexadecane is added
Base trimethyl ammonium chloride, silane coupling agent are uniformly mixed, and spray drying obtains complex microsphere.
Preferably, in the preparation process of complex microsphere, concentration of sodium hydroxide solution 1-1.4mol/L.
Preferably, in the preparation process of complex microsphere, humic acid, sodium hydroxide solution, nano-titanium dioxide, hydroxide
Aluminium, hexadecyltrimethylammonium chloride, silane coupling agent weight ratio be 10-20:55-65:25-45:10-16:1-2:0.4-
0.8。
Preferably, complex microsphere is prepared using following technique: humic acid, sodium hydroxide solution are stirred 6-10h, stirring temperature
Degree is 80-86 DEG C, and regulation system is in neutrality, and nano-titanium dioxide is added, and room temperature is shaken 2-6 days, is filtered, centrifugation, lower layer's particle
Freeze-drying is added aluminium hydroxide, hexadecyltrimethylammonium chloride, silane coupling agent and is uniformly mixed, and 170-180 DEG C spraying dry
It is dry to obtain complex microsphere.
Above-mentioned low toxic and environment-friendly sorbent preparation method proposed by the present invention, includes the following steps:
S1, plant fiber, coal gangue powder, polyethylene glycol, carboxymethyl cellulose are ground, sulfuric acid solution is added, filters, roasting
It burns, cools down, crush, grinding uniformly obtains prefabricated material；
S2, by polyvinyl, poly-silicic acid iron sulfate, poly- phosphorus aluminium chloride, ferrous sulfate, poly- phosphorus iron chloride, compound micro-
Ball is uniformly mixed, and prefabricated material, sodium metasilicate, potassium ferrate, hyaluronic acid is added and is uniformly mixed, it is equal that microcrystalline cellulose mixing is added
It is even, it is dried to obtain low toxic and environment-friendly adsorbent.
Preferably, milling time 30-40min.
Preferably, calcining time 4-8h, maturing temperature are 540-580 DEG C.
Preferably, drying temperature is 70-80 DEG C, drying time 2-5h.
Application of the above-mentioned low toxic and environment-friendly adsorbent proposed by the present invention as river sewage inorganic agent.
The present invention is acidified through persulfuric acid using plant fiber, coal gangue powder, polyethylene glycol compounding, can be given full play to raw material
Respective characteristic, function obtains complementation, to have preferable adsorptivity, thermal stability and caking property；Medical stone compound with
Prefabricated material good dispersion, after sewage treatment, not only adsorption activity is high, and to the good purification of sewage, unharmful substance is raw
At having a good application prospect.
In complex microsphere of the invention, by humic acid after sodium hydroxide solution is handled, surface is rich in poles such as hydroxyl, carboxyls
Property functional group, dispersion is sufficiently shaken with nano-titanium dioxide, can strong adsorption on nano-titanium dioxide surface, not only to algae
Bio-toxicity reduces, and under hexadecyltrimethylammonium chloride effect, high with aluminium hydroxide degree of scatter, the two is combined
Not only in water, it but also in certain organic solvents and polymer monomer, can be dispersed into automatically without the monodisperse shape obviously reunited
State, while adsorption activity is high.
Gained low toxic and environment-friendly adsorbent of the invention can effectively remove heavy metal ion and organic contamination in river sewage
Object, material source is extensive, and not phosphorous, nontoxic, and easily biological-degradable not can cause environmental pollution, and has higher economic effect
Benefit can be promoted in sewage treatment industry, there is significant practical value and vast market prospect.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of low toxic and environment-friendly adsorbent, raw material include: bagasse 20kg, and average particle size is the coal gangue powder of 100 mesh
10kg, polyethylene glycol 8kg, carboxymethyl cellulose 1kg, concentration are 62wt% sulfuric acid solution 70kg, polyvinyl 16kg, are gathered
Silicic acid iron sulfate 20kg, poly- phosphorus aluminium chloride 12kg, ferrous sulfate 4kg, poly- phosphorus iron chloride 4kg, complex microsphere 4kg, prefabricated material
14kg, sodium metasilicate 2kg, potassium ferrate 2kg, hyaluronic acid 1kg, microcrystalline cellulose 4kg.
Complex microsphere uses following technique to prepare: 10kg humic acid, 65kg concentration are stirred for 1mol/L sodium hydroxide solution
10h is mixed, whipping temp is 80 DEG C, and regulation system is in neutrality, and 45kg nano-titanium dioxide is added, and room temperature is shaken 2 days, filtering, from
The heart, lower layer's pellet frozen is dry, and 16kg aluminium hydroxide, 1kg hexadecyltrimethylammonium chloride, 0.8kg silane coupling agent is added
It is uniformly mixed, 170 DEG C of spray drying obtain complex microsphere.
A kind of preparation method of low toxic and environment-friendly adsorbent, includes the following steps:
S1, plant fiber, coal gangue powder, polyethylene glycol, carboxymethyl cellulose are ground into 40min, sulfuric acid solution, mistake is added
Filter roasts 4h, and maturing temperature is 580 DEG C, cools down, crushes, grinding uniformly obtains prefabricated material；
S2, by polyvinyl, poly-silicic acid iron sulfate, poly- phosphorus aluminium chloride, ferrous sulfate, poly- phosphorus iron chloride, compound micro-
Ball is uniformly mixed, and prefabricated material, sodium metasilicate, potassium ferrate, hyaluronic acid is added and is uniformly mixed, it is equal that microcrystalline cellulose mixing is added
Even, 70 DEG C of dry 5h obtain low toxic and environment-friendly adsorbent.
Embodiment 2
A kind of low toxic and environment-friendly adsorbent, raw material include: coconut husk 30kg, and average particle size is the coal gangue powder 20kg of 70 mesh,
Polyethylene glycol 4kg, carboxymethyl cellulose 2kg, concentration are 55wt% sulfuric acid solution 90kg, polyvinyl 8kg, polysilicon acid sulphur
Sour iron 30kg, poly- phosphorus aluminium chloride 8kg, ferrous sulfate 10kg, poly- phosphorus iron chloride 2kg, complex microsphere 8kg, prefabricated material 10kg, silicic acid
Sodium 4kg, potassium ferrate 1kg, hyaluronic acid 2kg, microcrystalline cellulose 2kg.
Complex microsphere uses following technique to prepare: by 20kg humic acid, 55kg concentration for 1.4mol/L sodium hydroxide solution
6h is stirred, whipping temp is 86 DEG C, and regulation system is in neutrality, and 25kg nano-titanium dioxide is added, and room temperature is shaken 6 days, filtering, from
The heart, lower layer's pellet frozen is dry, and 10kg aluminium hydroxide, 2kg hexadecyltrimethylammonium chloride, 0.4kg silane coupling agent is added
It is uniformly mixed, 180 DEG C of spray drying obtain complex microsphere.
A kind of preparation method of low toxic and environment-friendly adsorbent, includes the following steps:
S1, plant fiber, coal gangue powder, polyethylene glycol, carboxymethyl cellulose are ground into 30min, sulfuric acid solution, mistake is added
Filter roasts 8h, and maturing temperature is 540 DEG C, cools down, crushes, grinding uniformly obtains prefabricated material；
S2, by polyvinyl, poly-silicic acid iron sulfate, poly- phosphorus aluminium chloride, ferrous sulfate, poly- phosphorus iron chloride, compound micro-
Ball is uniformly mixed, and prefabricated material, sodium metasilicate, potassium ferrate, hyaluronic acid is added and is uniformly mixed, it is equal that microcrystalline cellulose mixing is added
Even, 80 DEG C of dry 2h obtain low toxic and environment-friendly adsorbent.
Embodiment 3
A kind of low toxic and environment-friendly adsorbent, raw material include: corncob 22kg, and average particle size is the coal gangue powder of 90 mesh
12kg, polyethylene glycol 7kg, carboxymethyl cellulose 1.2kg, concentration be 60wt% sulfuric acid solution 75kg, polyvinyl 14kg,
Poly-silicic acid iron sulfate 22kg, poly- phosphorus aluminium chloride 11kg, ferrous sulfate 6kg, poly- phosphorus iron chloride 3.5kg, complex microsphere 5kg are prefabricated
Expect 13kg, sodium metasilicate 2.5kg, potassium ferrate 1.8kg, hyaluronic acid 1.3kg, microcrystalline cellulose 3.5kg.
Complex microsphere uses following technique to prepare: by 12kg humic acid, 62kg concentration for 1.1mol/L sodium hydroxide solution
9h is stirred, whipping temp is 82 DEG C, and regulation system is in neutrality, and 40kg nano-titanium dioxide is added, and room temperature is shaken 3 days, filtering, from
The heart, lower layer's pellet frozen is dry, and it is silane coupled that 14kg aluminium hydroxide, 1.3kg hexadecyltrimethylammonium chloride, 0.7kg is added
Agent is uniformly mixed, and 173 DEG C of spray drying obtain complex microsphere.
A kind of preparation method of low toxic and environment-friendly adsorbent, includes the following steps:
S1, plant fiber, coal gangue powder, polyethylene glycol, carboxymethyl cellulose are ground into 37min, sulfuric acid solution, mistake is added
Filter roasts 5h, and maturing temperature is 570 DEG C, cools down, crushes, grinding uniformly obtains prefabricated material；
S2, by polyvinyl, poly-silicic acid iron sulfate, poly- phosphorus aluminium chloride, ferrous sulfate, poly- phosphorus iron chloride, compound micro-
Ball is uniformly mixed, and prefabricated material, sodium metasilicate, potassium ferrate, hyaluronic acid is added and is uniformly mixed, it is equal that microcrystalline cellulose mixing is added
Even, 73 DEG C of dry 4h obtain low toxic and environment-friendly adsorbent.
Embodiment 4
A kind of low toxic and environment-friendly adsorbent, raw material include: stalk 14kg, and peanut shell 14kg, average particle size is the coal of 80 mesh
Spoil powder 18kg, polyethylene glycol 5kg, carboxymethyl cellulose 1.8kg, concentration are 58wt% sulfuric acid solution 85kg, and polyvinyl is sub-
Amine 10kg, poly-silicic acid iron sulfate 28kg, poly- phosphorus aluminium chloride 9kg, ferrous sulfate 8kg, poly- phosphorus iron chloride 2.5kg, complex microsphere
7kg, prefabricated material 11kg, sodium metasilicate 3.5kg, potassium ferrate 1.2kg, hyaluronic acid 1.7kg, microcrystalline cellulose 2.5kg.
Complex microsphere uses following technique to prepare: by 18kg humic acid, 58kg concentration for 1.3mol/L sodium hydroxide solution
7h is stirred, whipping temp is 84 DEG C, and regulation system is in neutrality, and 30kg nano-titanium dioxide is added, and room temperature is shaken 5 days, filtering, from
The heart, lower layer's pellet frozen is dry, and it is silane coupled that 12kg aluminium hydroxide, 1.7kg hexadecyltrimethylammonium chloride, 0.5kg is added
Agent is uniformly mixed, and 177 DEG C of spray drying obtain complex microsphere.
A kind of preparation method of low toxic and environment-friendly adsorbent, includes the following steps:
S1, plant fiber, coal gangue powder, polyethylene glycol, carboxymethyl cellulose are ground into 33min, sulfuric acid solution, mistake is added
Filter roasts 7h, and maturing temperature is 550 DEG C, cools down, crushes, grinding uniformly obtains prefabricated material；
S2, by polyvinyl, poly-silicic acid iron sulfate, poly- phosphorus aluminium chloride, ferrous sulfate, poly- phosphorus iron chloride, compound micro-
Ball is uniformly mixed, and prefabricated material, sodium metasilicate, potassium ferrate, hyaluronic acid is added and is uniformly mixed, it is equal that microcrystalline cellulose mixing is added
Even, 77 DEG C of dry 3h obtain low toxic and environment-friendly adsorbent.
Embodiment 5
A kind of low toxic and environment-friendly adsorbent, raw material include: bagasse 10kg, coconut husk 10kg, corncob 5kg, average particle size
For the coal gangue powder 15kg of 85 mesh, polyethylene glycol 6kg, carboxymethyl cellulose 1.5kg, concentration is 59wt% sulfuric acid solution 80kg,
Polyvinyl 12kg, poly-silicic acid iron sulfate 25kg, poly- phosphorus aluminium chloride 10kg, ferrous sulfate 7kg, poly- phosphorus iron chloride 3kg are multiple
Close microballoon 6kg, prefabricated material 12kg, sodium metasilicate 3kg, potassium ferrate 1.5kg, hyaluronic acid 1.5kg, microcrystalline cellulose 3kg.
Complex microsphere uses following technique to prepare: by 15kg humic acid, 60kg concentration for 1.2mol/L sodium hydroxide solution
8h is stirred, whipping temp is 83 DEG C, and regulation system is in neutrality, and 35kg nano-titanium dioxide is added, and room temperature is shaken 4 days, filtering, from
The heart, lower layer's pellet frozen is dry, and it is silane coupled that 13kg aluminium hydroxide, 1.5kg hexadecyltrimethylammonium chloride, 0.6kg is added
Agent is uniformly mixed, and 173-177 DEG C of spray drying obtains complex microsphere.
A kind of preparation method of low toxic and environment-friendly adsorbent, includes the following steps:
S1, plant fiber, coal gangue powder, polyethylene glycol, carboxymethyl cellulose are ground into 35min, sulfuric acid solution, mistake is added
Filter roasts 6h, and maturing temperature is 560 DEG C, cools down, crushes, grinding uniformly obtains prefabricated material；
S2, by polyvinyl, poly-silicic acid iron sulfate, poly- phosphorus aluminium chloride, ferrous sulfate, poly- phosphorus iron chloride, compound micro-
Ball is uniformly mixed, and prefabricated material, sodium metasilicate, potassium ferrate, hyaluronic acid is added and is uniformly mixed, it is equal that microcrystalline cellulose mixing is added
Even, 75 DEG C of dry 3.5h obtain low toxic and environment-friendly adsorbent.
5 gained low toxic and environment-friendly adsorbent of embodiment is used for river sewage processing, result is as follows:
| Before processing | After processing | Removal rate, % | |
| Suspended matter, mg/L | 1900 | 8 | 99.6 |
| COD, mg/L | 28500 | 27 | 99.9 |
| Ammonia nitrogen, mg/L | 1400 | 10 | 99.3 |
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of low toxic and environment-friendly adsorbent, which is characterized in that its raw material includes: 20-30 parts of plant fiber by weight, gangue
10-20 parts of powder, 4-8 parts of polyethylene glycol, 1-2 parts of carboxymethyl cellulose, 70-90 parts of sulfuric acid solution, 8-16 parts of polyvinyl,
20-30 parts of poly-silicic acid iron sulfate, 8-12 parts of poly- phosphorus aluminium chloride, 4-10 parts of ferrous sulfate, 2-4 parts of poly- phosphorus iron chloride, complex microsphere
4-8 parts, prefabricated material 10-14 parts, 2-4 parts of sodium metasilicate, 1-2 parts of potassium ferrate, 1-2 parts of hyaluronic acid, 2-4 parts of microcrystalline cellulose.
2. low toxic and environment-friendly adsorbent according to claim 1, which is characterized in that plant fiber be bagasse, coconut husk, stalk,
At least one of corncob, peanut shell.
3. low toxic and environment-friendly adsorbent according to claim 1 or claim 2, which is characterized in that coal gangue powder average particle size is 70-100
Mesh.
4. any one of -3 low toxic and environment-friendly adsorbent according to claim 1, which is characterized in that sulfuric acid solution concentration is 55-
62wt%.
5. any one of -4 low toxic and environment-friendly adsorbent according to claim 1, which is characterized in that complex microsphere uses following technique
Preparation: humic acid, sodium hydroxide solution are stirred, and regulation system is in neutrality, and nano-titanium dioxide is added, and room temperature concussion is filtered,
Centrifugation, lower layer's pellet frozen is dry, and aluminium hydroxide, hexadecyltrimethylammonium chloride, silane coupling agent is added and is uniformly mixed, spray
Mist is dried to obtain complex microsphere.
6. low toxic and environment-friendly adsorbent according to claim 5, which is characterized in that in the preparation process of complex microsphere, hydroxide
Sodium solution concentration is 1-1.4mol/L.
7. according to the low toxic and environment-friendly adsorbent of claim 5 or 6, which is characterized in that in the preparation process of complex microsphere, humic
The weight ratio of acid, sodium hydroxide solution, nano-titanium dioxide, aluminium hydroxide, hexadecyltrimethylammonium chloride, silane coupling agent
For 10-20:55-65:25-45:10-16:1-2:0.4-0.8.
8. according to any one of the claim 5-7 low toxic and environment-friendly adsorbent, which is characterized in that the preparation process of complex microsphere
In, complex microsphere is prepared using following technique: humic acid, sodium hydroxide solution are stirred into 6-10h, whipping temp is 80-86 DEG C,
Regulation system is in neutrality, and nano-titanium dioxide is added, and room temperature is shaken 2-6 days, is filtered, and centrifugation, lower layer's pellet frozen is dry, is added
Aluminium hydroxide, hexadecyltrimethylammonium chloride, silane coupling agent are uniformly mixed, and 170-180 DEG C of spray drying obtains compound micro-
Ball.
9. one kind low toxic and environment-friendly sorbent preparation method as described in claim any one of 1-8, which is characterized in that including walking as follows
It is rapid:
S1, plant fiber, coal gangue powder, polyethylene glycol, carboxymethyl cellulose are ground, sulfuric acid solution is added, filters, roasting,
Cooling crushes, and grinding uniformly obtains prefabricated material；
S2, polyvinyl, poly-silicic acid iron sulfate, poly- phosphorus aluminium chloride, ferrous sulfate, poly- phosphorus iron chloride, complex microsphere are mixed
It closes uniformly, prefabricated material, sodium metasilicate, potassium ferrate, hyaluronic acid is added and is uniformly mixed, microcrystalline cellulose is added and is uniformly mixed, does
It is dry to obtain low toxic and environment-friendly adsorbent.
10. a kind of application of the low toxic and environment-friendly adsorbent as river sewage inorganic agent as described in claim any one of 1-8.
Priority Applications (1)
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| CN116282338A (en) * | 2023-04-27 | 2023-06-23 | 东华工程科技股份有限公司 | Chemical wastewater treatment agent and preparation method thereof |
| CN117016316A (en) * | 2023-10-10 | 2023-11-10 | 山东永盛农业发展有限公司 | Cultivation method for improving quality of cherry tomatoes |
| CN117696021A (en) * | 2024-02-05 | 2024-03-15 | 陇东学院 | Gangue modified heavy metal adsorbent and preparation method thereof |
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| CN117696021B (en) * | 2024-02-05 | 2024-04-16 | 陇东学院 | Gangue modified heavy metal adsorbent and preparation method thereof |
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Application publication date: 20181214 |