CN111115729A - Composite material for industrial wastewater treatment tubular membrane filter layer - Google Patents
Composite material for industrial wastewater treatment tubular membrane filter layer Download PDFInfo
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- CN111115729A CN111115729A CN202010064064.3A CN202010064064A CN111115729A CN 111115729 A CN111115729 A CN 111115729A CN 202010064064 A CN202010064064 A CN 202010064064A CN 111115729 A CN111115729 A CN 111115729A
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- composite material
- wastewater treatment
- industrial wastewater
- activated carbon
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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
-
- 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
-
- 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
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
- C02F1/70—Treatment of water, waste water, or sewage by reduction
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Treatment By Sorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a composite material for a tubular membrane filter layer for industrial wastewater treatment, which comprises 46-50 parts by weight of acidified active carbon, 32-38 parts by weight of polytetrafluoroethylene, 8-10 parts by weight of graphene, 2-6 parts by weight of ferric chloride, 1-3 parts by weight of polyaluminum ferric chloride, 3-5 parts by weight of gamma-aminopropyltriethoxysilane and the like. The invention has reasonable and scientific preparation of components, forms a composite material with stable structure, has the characteristics of large specific surface area, high adsorption capacity, better thixotropy, thermal stability, plasticity, cohesiveness, high dry compression strength and the like, improves the water purification effect and has no secondary pollution.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a composite material for a tubular membrane filter layer for industrial wastewater treatment.
Background
There are two types of water pollution: one is natural pollution; another category is human contamination. The current method is artificial pollution which is a great harm to water. Water pollution can be mainly classified into chemical pollution, physical pollution and biological pollution according to different pollution impurities.
The industrial wastewater refers to wastewater, sewage and waste liquid generated in the industrial production process, and contains industrial production materials, intermediate products and products which are lost along with water, and pollutants generated in the production process. With the rapid development of industry, the variety and quantity of waste water are rapidly increased, the pollution to water bodies is more and more extensive and serious, and the health and the safety of human beings are threatened. Therefore, the treatment of industrial wastewater is more important than the treatment of municipal sewage for environmental protection.
Generally, people generally adopt activated carbon materials for water treatment, and the principle of the activated carbon materials is mainly to separate pollutants from water through physical adsorption. The activated carbon has a large specific surface area and a developed void structure, so that the activated carbon has strong adsorption capacity on dissolved organic matters such as phenolic compounds in water and is suitable for deep purification of drinking water. However, the use of activated carbon as a water treatment agent has some problems, such as the ratio of the adsorption capacity of activated carbon to the cost needs to be further improved, and the adsorption is physical adsorption, which is easy to desorb in the adsorption process, thereby causing secondary pollution.
In recent years, research and development on novel membrane technology for treating wastewater have been extensively studied, and the novel membrane technology is a novel water treatment technology based on membrane separation materials. The membrane technology has the advantages of high quality of produced water, high efficiency of intercepting sludge and bacteria, small occupied area, simple operation and maintenance, full-automatic control and management and the like, and is widely applied to various wastewater treatment processes. However, because the components of the acidic wastewater are complex and various, the membrane materials commonly used in the market at present cannot completely treat the industrial wastewater, thereby limiting the development of the membrane technology in the wastewater treatment industry.
Disclosure of Invention
In order to overcome the defects, the invention provides a composite material for a tubular membrane filter layer for industrial wastewater treatment.
The invention is realized by adopting the following technical scheme: the composite material for the filtering layer of the tubular membrane for industrial wastewater treatment comprises the following components in parts by weight:
46-50 parts of acidified active carbon, 32-38 parts of polytetrafluoroethylene, 8-10 parts of graphene, 2-6 parts of ferric trichloride, 1-3 parts of polyaluminum ferric chloride, 3-5 parts of gamma-aminopropyl triethoxysilane, 1-3 parts of raney nickel, 4-6 parts of modified chitosan, 2-4 parts of instant sodium silicate, 1-3 parts of nano mesoporous molecular sieve, 0.8-1.2 parts of inorganic titanium silicon, 0.6-1 part of nano titanium dioxide powder, 0.5-0.9 part of dispersion medium and 0.7-1.1 part of reducing agent.
Further, the preparation method of the acidified activated carbon comprises the following steps: firstly crushing activated carbon powder into activated carbon powder, slowly adding a sulfuric acid solution with the mass concentration of 12% and continuously stirring for acidification treatment for 5min, then extruding the acidified activated carbon powder into activated carbon sheet-shaped objects through a double-roller machine, then placing the activated carbon sheet-shaped objects in a drying furnace for drying and activation, wherein the drying time is 5h, the drying temperature is 155 ℃, finally adding the dried activated carbon sheet-shaped objects into a ball mill for grinding, and the ground powder-shaped objects are acidified activated carbon.
Further, the preparation method of the modified chitosan comprises the following steps: dissolving ferric trichloride in deionized water, adding chitosan after full dissolution, slowly adding absolute ethyl alcohol after reaction is finished, slowly stirring, centrifuging after precipitation is finished, cleaning the precipitate, drying, and grinding to obtain the modified chitosan.
Further, the dispersion medium is acetone.
Further, the reducing agent is sodium borohydride.
Further, the paint comprises the following components in parts by weight:
46 parts of acidified active carbon, 32 parts of polytetrafluoroethylene, 8 parts of graphene, 2 parts of ferric trichloride, 1 part of polyaluminum ferric chloride, 3 parts of gamma-aminopropyltriethoxysilane, 1 part of raney nickel, 4 parts of modified chitosan, 2 parts of instant sodium silicate, 1 part of nano mesoporous molecular sieve, 0.8 part of inorganic titanium silicon, 0.6 part of nano titanium dioxide powder, 0.5 part of dispersion medium and 0.7 part of reducing agent.
Further, the paint comprises the following components in parts by weight:
48 parts of acidified active carbon, 35 parts of polytetrafluoroethylene, 9 parts of graphene, 4 parts of ferric trichloride, 2 parts of polyaluminum ferric chloride, 4 parts of gamma-aminopropyltriethoxysilane, 2 parts of raney nickel, 5 parts of modified chitosan, 3 parts of instant sodium silicate, 2 parts of nano mesoporous molecular sieve, 1 part of inorganic titanium silicon, 0.8 part of nano titanium dioxide powder, 0.7 part of dispersion medium and 0.9 part of reducing agent.
Further, the paint comprises the following components in parts by weight:
50 parts of acidified active carbon, 38 parts of polytetrafluoroethylene, 10 parts of graphene, 6 parts of ferric trichloride, 3 parts of polyaluminum ferric chloride, 5 parts of gamma-aminopropyltriethoxysilane, 3 parts of raney nickel, 6 parts of modified chitosan, 4 parts of instant sodium silicate, 3 parts of nano mesoporous molecular sieve, 1.2 parts of inorganic titanium silicon, 1 part of nano titanium dioxide powder, 0.9 part of dispersion medium and 1.1 part of reducing agent.
In conclusion, the invention has the following beneficial effects: the composite material for the tubular membrane filter layer for industrial wastewater treatment provided by the invention is reasonable and scientific in component preparation, forms a composite material with a stable structure, has the characteristics of large specific surface area, high adsorption capacity, good thixotropy, thermal stability, plasticity, cohesiveness, high dry compression strength and the like, improves the water purification effect, and does not cause secondary pollution.
The activated carbon is a carbon material which is made of carbon-containing materials, has black appearance, developed internal pore structure, large specific surface area and strong adsorption capacity, and is a common adsorbent, catalyst or catalyst carrier. The active carbon has wide application, and in order to improve the application quality of the active carbon, the active carbon produced by a physical method needs to be acidified.
The instant sodium silicate is white powdery material, can be quickly dissolved in water, and has the characteristics of strong binding power, higher strength, good acid resistance and heat resistance, and poor alkali resistance and water resistance.
Chitosan (chitosan), also known as chitosan, is obtained by deacetylation of chitin (chitin) widely existing in nature, and is chemically named polyglucosamine (1-4) -2-amino-B-D glucose. Since 1859, after the first obtained chitosan by Rouget of the french, the superior properties of this natural polymer, such as biofunctionality and compatibility, blood compatibility, safety, microbial degradability, etc., were widely noticed by various industries, and significant progress was made in the application research in various fields such as medicine, food, chemical industry, cosmetics, water treatment, metal extraction and recovery, biochemistry and biomedical engineering; the invention further improves the degradation performance of chitosan on microorganisms through the improvement of chitosan.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example 1 composite Material for tubular Membrane Filter layer for Industrial wastewater treatment
The composite material for the filtering layer of the tubular membrane for industrial wastewater treatment comprises the following components in parts by weight:
46 parts of acidified active carbon, 32 parts of polytetrafluoroethylene, 8 parts of graphene, 2 parts of ferric trichloride, 1 part of polyaluminum ferric chloride, 3 parts of gamma-aminopropyltriethoxysilane, 1 part of raney nickel, 4 parts of modified chitosan, 2 parts of instant sodium silicate, 1 part of nano mesoporous molecular sieve, 0.8 part of inorganic titanium silicon, 0.6 part of nano titanium dioxide powder, 0.5 part of dispersion medium and 0.7 part of reducing agent.
As a preferred scheme of the invention, the preparation method of the acidified active carbon comprises the following steps: firstly crushing activated carbon powder into activated carbon powder, slowly adding a sulfuric acid solution with the mass concentration of 12% and continuously stirring for acidification treatment for 5min, then extruding the acidified activated carbon powder into activated carbon sheet-shaped objects through a double-roller machine, then placing the activated carbon sheet-shaped objects in a drying furnace for drying and activation, wherein the drying time is 5h, the drying temperature is 155 ℃, finally adding the dried activated carbon sheet-shaped objects into a ball mill for grinding, and the ground powder-shaped objects are acidified activated carbon.
As a preferred scheme of the invention, the preparation method of the modified chitosan comprises the following steps: dissolving ferric trichloride in deionized water, adding chitosan after full dissolution, slowly adding absolute ethyl alcohol after reaction is finished, slowly stirring, centrifuging after precipitation is finished, cleaning the precipitate, drying, and grinding to obtain the modified chitosan.
As a preferred embodiment of the present invention, the dispersion medium of the present invention is acetone.
As a preferred embodiment of the present invention, the reducing agent of the present invention is sodium borohydride.
Example 2 composite Material for tubular Membrane Filter layer for Industrial wastewater treatment
The composite material for the filtering layer of the tubular membrane for industrial wastewater treatment comprises the following components in parts by weight:
48 parts of acidified active carbon, 35 parts of polytetrafluoroethylene, 9 parts of graphene, 4 parts of ferric trichloride, 2 parts of polyaluminum ferric chloride, 4 parts of gamma-aminopropyltriethoxysilane, 2 parts of raney nickel, 5 parts of modified chitosan, 3 parts of instant sodium silicate, 2 parts of nano mesoporous molecular sieve, 1 part of inorganic titanium silicon, 0.8 part of nano titanium dioxide powder, 0.7 part of dispersion medium and 0.9 part of reducing agent.
As a preferred scheme of the invention, the preparation method of the acidified active carbon comprises the following steps: firstly crushing activated carbon powder into activated carbon powder, slowly adding a sulfuric acid solution with the mass concentration of 12% and continuously stirring for acidification treatment for 5min, then extruding the acidified activated carbon powder into activated carbon sheet-shaped objects through a double-roller machine, then placing the activated carbon sheet-shaped objects in a drying furnace for drying and activation, wherein the drying time is 5h, the drying temperature is 155 ℃, finally adding the dried activated carbon sheet-shaped objects into a ball mill for grinding, and the ground powder-shaped objects are acidified activated carbon.
As a preferred scheme of the invention, the preparation method of the modified chitosan comprises the following steps: dissolving ferric trichloride in deionized water, adding chitosan after full dissolution, slowly adding absolute ethyl alcohol after reaction is finished, slowly stirring, centrifuging after precipitation is finished, cleaning the precipitate, drying, and grinding to obtain the modified chitosan.
As a preferred embodiment of the present invention, the dispersion medium of the present invention is acetone.
As a preferred embodiment of the present invention, the reducing agent of the present invention is sodium borohydride.
Example 3 composite Material for tubular Membrane Filter layer for Industrial wastewater treatment
The composite material for the filtering layer of the tubular membrane for industrial wastewater treatment comprises the following components in parts by weight:
50 parts of acidified active carbon, 38 parts of polytetrafluoroethylene, 10 parts of graphene, 6 parts of ferric trichloride, 3 parts of polyaluminum ferric chloride, 5 parts of gamma-aminopropyltriethoxysilane, 3 parts of raney nickel, 6 parts of modified chitosan, 4 parts of instant sodium silicate, 3 parts of nano mesoporous molecular sieve, 1.2 parts of inorganic titanium silicon, 1 part of nano titanium dioxide powder, 0.9 part of dispersion medium and 1.1 part of reducing agent.
As a preferred scheme of the invention, the preparation method of the acidified active carbon comprises the following steps: firstly crushing activated carbon powder into activated carbon powder, slowly adding a sulfuric acid solution with the mass concentration of 12% and continuously stirring for acidification treatment for 5min, then extruding the acidified activated carbon powder into activated carbon sheet-shaped objects through a double-roller machine, then placing the activated carbon sheet-shaped objects in a drying furnace for drying and activation, wherein the drying time is 5h, the drying temperature is 155 ℃, finally adding the dried activated carbon sheet-shaped objects into a ball mill for grinding, and the ground powder-shaped objects are acidified activated carbon.
As a preferred scheme of the invention, the preparation method of the modified chitosan comprises the following steps: dissolving ferric trichloride in deionized water, adding chitosan after full dissolution, slowly adding absolute ethyl alcohol after reaction is finished, slowly stirring, centrifuging after precipitation is finished, cleaning the precipitate, drying, and grinding to obtain the modified chitosan.
As a preferred embodiment of the present invention, the dispersion medium of the present invention is acetone.
As a preferred embodiment of the present invention, the reducing agent of the present invention is sodium borohydride.
The foregoing is illustrative of the present invention, and therefore, all changes and modifications that come within the spirit and scope of the invention are desired to be protected by the following claims.
Claims (8)
1. The composite material for the filtering layer of the tubular membrane for industrial wastewater treatment is characterized in that: the paint comprises the following components in parts by weight: 46-50 parts of acidified active carbon, 32-38 parts of polytetrafluoroethylene, 8-10 parts of graphene, 2-6 parts of ferric trichloride, 1-3 parts of polyaluminum ferric chloride, 3-5 parts of gamma-aminopropyl triethoxysilane, 1-3 parts of raney nickel, 4-6 parts of modified chitosan, 2-4 parts of instant sodium silicate, 1-3 parts of nano mesoporous molecular sieve, 0.8-1.2 parts of inorganic titanium silicon, 0.6-1 part of nano titanium dioxide powder, 0.5-0.9 part of dispersion medium and 0.7-1.1 part of reducing agent.
2. The composite material for the tubular membrane filter layer for industrial wastewater treatment according to claim 1, characterized in that: the preparation method of the acidified active carbon comprises the following steps: firstly crushing activated carbon powder into activated carbon powder, slowly adding a sulfuric acid solution with the mass concentration of 12% and continuously stirring for acidification treatment for 5min, then extruding the acidified activated carbon powder into activated carbon sheet-shaped objects through a double-roller machine, then placing the activated carbon sheet-shaped objects in a drying furnace for drying and activation, wherein the drying time is 5h, the drying temperature is 155 ℃, finally adding the dried activated carbon sheet-shaped objects into a ball mill for grinding, and the ground powder-shaped objects are acidified activated carbon.
3. The composite material for the tubular membrane filter layer for industrial wastewater treatment according to claim 1, characterized in that: the preparation method of the modified chitosan comprises the following steps: dissolving ferric trichloride in deionized water, adding chitosan after full dissolution, slowly adding absolute ethyl alcohol after reaction is finished, slowly stirring, centrifuging after precipitation is finished, cleaning the precipitate, drying, and grinding to obtain the modified chitosan.
4. The composite material for the tubular membrane filter layer for industrial wastewater treatment according to claim 1, characterized in that: the dispersion medium is acetone.
5. The composite material for the tubular membrane filter layer for industrial wastewater treatment according to claim 1, characterized in that: the reducing agent is sodium borohydride.
6. The composite material for the tubular membrane filter layer for industrial wastewater treatment according to claim 1, characterized in that: the paint comprises the following components in parts by weight:
46 parts of acidified active carbon, 32 parts of polytetrafluoroethylene, 8 parts of graphene, 2 parts of ferric trichloride, 1 part of polyaluminum ferric chloride, 3 parts of gamma-aminopropyltriethoxysilane, 1 part of raney nickel, 4 parts of modified chitosan, 2 parts of instant sodium silicate, 1 part of nano mesoporous molecular sieve, 0.8 part of inorganic titanium silicon, 0.6 part of nano titanium dioxide powder, 0.5 part of dispersion medium and 0.7 part of reducing agent.
7. The composite material for the tubular membrane filter layer for industrial wastewater treatment according to claim 1, characterized in that: the paint comprises the following components in parts by weight:
48 parts of acidified active carbon, 35 parts of polytetrafluoroethylene, 9 parts of graphene, 4 parts of ferric trichloride, 2 parts of polyaluminum ferric chloride, 4 parts of gamma-aminopropyltriethoxysilane, 2 parts of raney nickel, 5 parts of modified chitosan, 3 parts of instant sodium silicate, 2 parts of nano mesoporous molecular sieve, 1 part of inorganic titanium silicon, 0.8 part of nano titanium dioxide powder, 0.7 part of dispersion medium and 0.9 part of reducing agent.
8. The composite material for the tubular membrane filter layer for industrial wastewater treatment according to claim 1, characterized in that: the paint comprises the following components in parts by weight:
50 parts of acidified active carbon, 38 parts of polytetrafluoroethylene, 10 parts of graphene, 6 parts of ferric trichloride, 3 parts of polyaluminum ferric chloride, 5 parts of gamma-aminopropyltriethoxysilane, 3 parts of raney nickel, 6 parts of modified chitosan, 4 parts of instant sodium silicate, 3 parts of nano mesoporous molecular sieve, 1.2 parts of inorganic titanium silicon, 1 part of nano titanium dioxide powder, 0.9 part of dispersion medium and 1.1 part of reducing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010064064.3A CN111115729A (en) | 2020-01-20 | 2020-01-20 | Composite material for industrial wastewater treatment tubular membrane filter layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010064064.3A CN111115729A (en) | 2020-01-20 | 2020-01-20 | Composite material for industrial wastewater treatment tubular membrane filter layer |
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| Publication Number | Publication Date |
|---|---|
| CN111115729A true CN111115729A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010064064.3A Withdrawn CN111115729A (en) | 2020-01-20 | 2020-01-20 | Composite material for industrial wastewater treatment tubular membrane filter layer |
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| CN (1) | CN111115729A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112275254A (en) * | 2020-10-14 | 2021-01-29 | 四川长晏科技有限公司 | Wastewater treatment agent and preparation method and application thereof |
| CN112960893A (en) * | 2021-03-03 | 2021-06-15 | 东莞市凯威尔环保材料有限公司 | Composite high-efficiency sludge dehydrating agent and preparation method and application thereof |
-
2020
- 2020-01-20 CN CN202010064064.3A patent/CN111115729A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112275254A (en) * | 2020-10-14 | 2021-01-29 | 四川长晏科技有限公司 | Wastewater treatment agent and preparation method and application thereof |
| CN112960893A (en) * | 2021-03-03 | 2021-06-15 | 东莞市凯威尔环保材料有限公司 | Composite high-efficiency sludge dehydrating agent and preparation method and application thereof |
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