CN111704130A - Preparation method of blue algae biochar for purifying cationic yellow dye wastewater - Google Patents
Preparation method of blue algae biochar for purifying cationic yellow dye wastewater Download PDFInfo
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- CN111704130A CN111704130A CN202010598602.7A CN202010598602A CN111704130A CN 111704130 A CN111704130 A CN 111704130A CN 202010598602 A CN202010598602 A CN 202010598602A CN 111704130 A CN111704130 A CN 111704130A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/318—Preparation characterised by the starting materials
- C01B32/324—Preparation characterised by the starting materials from waste materials, e.g. tyres or spent sulfite pulp liquor
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/342—Preparation characterised by non-gaseous activating agents
- C01B32/348—Metallic 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
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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
- C02F2101/36—Organic compounds containing halogen
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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
- C02F2101/38—Organic compounds containing nitrogen
Abstract
The invention discloses a preparation method of blue algae biochar for purifying cationic yellow dye wastewater, which comprises the steps of screening salvaged blue algae, drying to obtain blocky blue algae biomass, and crushing by using a crusher to obtain powder blue algae biomass; mixing powdered blue algae biomass with KOH, wrapping the powdered blue algae biomass with tin foil paper, and putting the coated blue algae biomass in a tubular furnace for pyrolysis to obtain a pyrolysis product; cleaning the pyrolysis product with hydrochloric acid, passing through a membrane, retaining the solid on the surface of the membrane, and then cleaning with purified water to be neutral; and drying the solid, grinding the solid into powder, and sieving the powder by a sieve to obtain the blue algae biochar material. The invention selects the salvaged blue algae biomass as a raw material, utilizes KOH as an activating agent, and prepares the blue algae biochar material with specific functions by carbonizing through a tubular furnace. On one hand, the waste blue algae biomass is safely treated, secondary pollution is avoided, and on the other hand, the blue algae biochar has high adsorption performance on dye cationic yellow, and provides theoretical and key technical support for cationic yellow dye wastewater treatment.
Description
Technical Field
The invention particularly relates to a preparation method of blue algae biochar for purifying cationic yellow dye wastewater.
Background
With the rapid development of the textile industry, organic dyes are used in large quantities. The variety of the dyes in the world exceeds 1 ten thousand, the commercial annual output is more than 70 ten thousand tons, the dye amount discharged into the environmental water body in the production and use process accounts for 10-15%, the water environment is polluted, and the safety of domestic water and drinking water is seriously threatened. The national environmental protection requirements on the sewage treatment are more and more strict, so that the research on how to safely treat the dye wastewater is urgent.
The cationic dye sewage features that it includes CODcrHigh content, low pH, poor biodegradability, high chroma and the like, and the traditional sewage treatment process and materials are difficult to achieve ideal effects. China is a large country for producing and using cationic dyes, and the corresponding sewage pollution is serious. Therefore, the environmental functional material with low research and development cost and high adsorption efficiency has important significance for treating the cationic dye sewage.
Disclosure of Invention
The purpose of the invention is as follows: in order to solve the defects of the prior art, the invention provides a preparation method of blue-green algae biochar for purifying cationic yellow dye wastewater, which utilizes waste blue-green algae biomass as a raw material to prepare a blue-green algae biochar material for efficiently adsorbing cationic yellow dye, and provides theoretical and key technical support for solving the problem of cationic dye sewage treatment.
The technical scheme is as follows: a preparation method of blue algae biochar for purifying cationic yellow dye wastewater comprises the following steps:
step (1), screening the salvaged blue algae through a 20-mesh sieve, drying the salvaged blue algae in a drying oven at 105 ℃ to obtain blocky blue algae biomass, and crushing the blocky blue algae biomass by using a crusher to obtain powder blue algae biomass;
mixing powdered blue algae biomass with KOH according to the mass ratio of 1:1, wrapping the powdered blue algae biomass with tin foil paper, and putting the coated blue algae biomass in a tubular furnace for pyrolysis to obtain a pyrolysis product;
cleaning the pyrolysis product with 5% hydrochloric acid, neutralizing KOH in the pyrolysis product, then pumping a filter cup by using circulating water to filter a 0.45um membrane, retaining the solid on the surface of the membrane, and then cleaning the membrane to be neutral by using purified water; and drying the solid in an oven at 60 ℃, grinding the dried solid into powder by using an agate mortar, and sieving the powder by using a 100-mesh sieve to obtain the final blue algae biochar material.
Further, in the step (2), the pyrolysis conditions are as follows: pyrolyzing for 3 hours at 700 ℃; the heating rate is as follows: 10 ℃/min; atmosphere in the tube furnace: inert gas N2。
Further, the prepared blue algae biochar material is used for treating wastewater containing the cationic yellow dye, and the method comprises the following specific steps: weighing blue algae biochar, putting the blue algae biochar into the cation yellow solution, controlling the temperature of a constant temperature shaking table to be 25 ℃, the rotating speed to be 150rpm, reacting for 4h, centrifuging at the centrifuging speed of 6000rpm for 5min to obtain a supernatant, detecting the concentration of the cation yellow in the solution after reaction by using a spectrophotometer, and calculating the removal rate of the cation yellow.
Has the advantages that: the cyanobacteria biomass salvaged from the nest lake is selected as a raw material, KOH is used as an activating agent, and the cyanobacteria biomass charcoal material with a specific function is prepared by carbonizing through a tubular furnace. The blue algae biochar material is prepared by taking the waste blue algae biomass as a raw material, so that on one hand, the waste blue algae biomass is safely treated, and secondary pollution is avoided, and on the other hand, the blue algae biochar has high adsorption performance on dye cation yellow, and provides theoretical and key technical support for treatment of cation yellow dye wastewater.
Drawings
FIG. 1 is a schematic diagram showing the influence of the addition amount of cyanobacteria biochar and commercial activated carbon (control) adsorbent on the adsorption of cationic yellow dye.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below so that those skilled in the art can better understand the advantages and features of the present invention, and thus the scope of the present invention will be more clearly defined. The embodiments described herein are only a few embodiments of the present invention, rather than all embodiments, and all other embodiments that can be derived by one of ordinary skill in the art without inventive faculty based on the embodiments described herein are intended to fall within the scope of the present invention.
Examples
A preparation method of blue algae biochar for purifying cationic yellow dye wastewater comprises the following steps:
step (1), screening the salvaged blue algae through a 20-mesh sieve, drying the salvaged blue algae in a drying oven at 105 ℃ to obtain blocky blue algae biomass, and crushing the blocky blue algae biomass by using a crusher to obtain powder blue algae biomass;
step (2), mixing the powdery blue algae biomass with KOH according to the mass ratio of 1:1, wrapping the mixture with tinfoil paper, and putting the mixture into a tubular furnace for pyrolysis (pyrolysis condition: 700 ℃ for 3 hours; heating rate: 10 ℃/min; atmosphere in the tubular furnace: inert gas N)2) Obtaining pyrolysis products;
and (3) cleaning the pyrolysis product with 5% hydrochloric acid, neutralizing KOH in the pyrolysis product, then filtering the pyrolysis product through a 0.45-micrometer membrane by using a circulating water pump filter cup, retaining the solid on the surface of the membrane, and then cleaning the membrane to be neutral by using purified water. And drying the solid in an oven at 60 ℃, grinding the dried solid into powder by using an agate mortar, and sieving the powder by using a 100-mesh sieve to obtain the final blue algae biochar material.
Detailed description of the preferred embodiment 1
The blue algae biochar material and commercial activated carbon (contrast) are used for treating the wastewater containing the cationic yellow dye, and the method comprises the following specific steps:
weighing 0.5mg of blue algae biochar and 0.5mg of activated carbon, respectively adding 50mL of cation yellow solution with the concentration of 40mg/L, controlling the temperature of a constant-temperature shaking table to be 25 ℃, rotating speed to be 150rpm, reacting for 12h, centrifuging (6000rpm, 5min) to obtain supernatant, detecting the concentration of cation yellow in the solution after reaction by using a spectrophotometer, and calculating to obtain the removal rate of the cation yellow in the blue algae biochar-treated cation yellow wastewater to be 57.4%, wherein the removal rate of the activated carbon to the cation yellow is only 19.9%.
Specific example 2
The blue algae biochar material and commercial activated carbon (contrast) are used for treating the wastewater containing the cationic yellow dye, and the method comprises the following specific steps:
weighing 1mg of blue algae biochar and 1mg of active carbon, respectively adding 50mL of cation yellow solution with the concentration of 40mg/L, controlling the temperature of a constant temperature shaking table to be 25 ℃, rotating speed to be 150rpm, reacting for 4h, centrifuging (6000rpm, 5min) to obtain supernatant, detecting the concentration of cation yellow in the reacted solution by using a spectrophotometer, and calculating to obtain the removal rate of cation yellow in the blue algae biochar-treated cation yellow wastewater to be 66.3%, wherein the removal rate of the active carbon to the cation yellow is only 36.6%.
Specific example 3
The blue algae biochar material and commercial activated carbon (contrast) are used for treating the wastewater containing the cationic yellow dye, and the method comprises the following specific steps:
weighing 2mg of blue algae biochar and 2mg of active carbon, respectively adding 50mL of cation yellow solution with the concentration of 40mg/L, controlling the temperature of a constant temperature shaking table to be 25 ℃, rotating speed to be 150rpm, reacting for 4h, centrifuging (6000rpm, 5min) to obtain supernatant, detecting the concentration of cation yellow in the reacted solution by using a spectrophotometer, and calculating to obtain the removal rate of the cation yellow in the blue algae biochar-treated cation yellow wastewater to be 89.5%, wherein the removal rate of the active carbon to the cation yellow is only 53.8%.
Specific example 4
The blue algae biochar material and commercial activated carbon (contrast) are used for treating the wastewater containing the cationic yellow dye, and the method comprises the following specific steps:
weighing 4mg of blue algae biochar and 4mg of active carbon, respectively adding 50mL of cation yellow solution with the concentration of 40mg/L, controlling the temperature of a constant temperature shaking table to be 25 ℃, rotating speed to be 150rpm, reacting for 4h, centrifuging (6000rpm, 5min) to obtain supernatant, detecting the concentration of cation yellow in the reacted solution by using a spectrophotometer, and calculating to obtain the removal rate of the cation yellow in the blue algae biochar-treated cation yellow wastewater to be 91.6%, wherein the removal rate of the active carbon to the cation yellow is only 72.3%.
Specific example 5
The blue algae biochar material and commercial activated carbon (contrast) are used for treating the wastewater containing the cationic yellow dye, and the method comprises the following specific steps:
weighing 8mg of blue algae biochar and 8mg of active carbon, respectively adding 50mL of cation yellow solution with the concentration of 40mg/L, controlling the temperature of a constant temperature shaking table to be 25 ℃, rotating speed to be 150rpm, reacting for 4h, centrifuging (6000rpm, 5min) to obtain supernatant, detecting the concentration of cation yellow in the reacted solution by using a spectrophotometer, and calculating to obtain the removal rate of the cation yellow in the blue algae biochar-treated cation yellow wastewater to be 94.3%, wherein the removal rate of the active carbon to the cation yellow is only 82.4%.
Claims (3)
1. A preparation method of blue algae biochar for purifying cationic yellow dye wastewater is characterized by comprising the following steps: the method comprises the following steps:
step (1), screening the salvaged blue algae through a 20-mesh sieve, drying the salvaged blue algae in a drying oven at 105 ℃ to obtain blocky blue algae biomass, and crushing the blocky blue algae biomass by using a crusher to obtain powder blue algae biomass;
mixing powdered blue algae biomass with KOH according to the mass ratio of 1:1, wrapping the powdered blue algae biomass with tin foil paper, and putting the coated blue algae biomass in a tubular furnace for pyrolysis to obtain a pyrolysis product;
cleaning the pyrolysis product with 5% hydrochloric acid, neutralizing KOH in the pyrolysis product, then pumping a filter cup by using circulating water to filter a 0.45um membrane, retaining the solid on the surface of the membrane, and then cleaning the membrane to be neutral by using purified water; and drying the solid in an oven at 60 ℃, grinding the dried solid into powder by using an agate mortar, and sieving the powder by using a 100-mesh sieve to obtain the final blue algae biochar material.
2. The method for preparing blue algae biochar for purifying cationic yellow dye wastewater according to claim 1, which is characterized by comprising the following steps: in the step (2), the pyrolysis conditions are as follows: pyrolyzing for 3 hours at 700 ℃; the heating rate is as follows: 10 ℃/min; atmosphere in the tube furnace: inert gas N2。
3. The method for preparing blue algae biochar for purifying cationic yellow dye wastewater according to claim 1, which is characterized by comprising the following steps: the prepared blue algae biochar material is used for treating wastewater containing cationic yellow dye, and the method comprises the following specific steps: weighing blue algae biochar, putting the blue algae biochar into the cation yellow solution, controlling the temperature of a constant temperature shaking table to be 25 ℃, the rotating speed to be 150rpm, reacting for 4h, centrifuging at the centrifuging speed of 6000rpm for 5min to obtain a supernatant, detecting the concentration of the cation yellow in the solution after reaction by using a spectrophotometer, and calculating the removal rate of the cation yellow.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112661228A (en) * | 2020-11-12 | 2021-04-16 | 江苏华创检测技术服务有限公司 | Method for purifying rhodamine B dye wastewater |
| CN112897628A (en) * | 2021-03-03 | 2021-06-04 | 南开大学 | Method for adsorbing pollutants by applying biochar material in DOM (document object model) environment |
| CN113578269A (en) * | 2021-08-30 | 2021-11-02 | 南通大学 | Waste paperboard biochar for treating rhodamine B dye wastewater and preparation method and application thereof |
| CN113967462A (en) * | 2021-06-10 | 2022-01-25 | 南通大学 | Preparation method and application of waste paperboard biochar |
| CN115477302A (en) * | 2022-09-29 | 2022-12-16 | 江西科技师范大学 | Biochar and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103881033A (en) * | 2014-02-26 | 2014-06-25 | 成都理工大学 | Preparation method of crop straw dye adsorption material |
| CN108325504A (en) * | 2018-02-28 | 2018-07-27 | 武汉大学 | A kind of method of natural layered silicate nanoparticle and the charcoal secondary absorption removal dye of positive ion |
| CN108579676A (en) * | 2018-05-04 | 2018-09-28 | 江南大学 | A kind of repeatable preparation method using type biology carbon composite |
| CN110272085A (en) * | 2019-07-30 | 2019-09-24 | 江南大学 | A kind of modified cyanobacteria biology carbon composite and the application in processing electroplating wastewater |
| CN110787771A (en) * | 2019-10-25 | 2020-02-14 | 天津大学 | Modified blue algae biochar and preparation method and application thereof |
-
2020
- 2020-06-28 CN CN202010598602.7A patent/CN111704130A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103881033A (en) * | 2014-02-26 | 2014-06-25 | 成都理工大学 | Preparation method of crop straw dye adsorption material |
| CN108325504A (en) * | 2018-02-28 | 2018-07-27 | 武汉大学 | A kind of method of natural layered silicate nanoparticle and the charcoal secondary absorption removal dye of positive ion |
| CN108579676A (en) * | 2018-05-04 | 2018-09-28 | 江南大学 | A kind of repeatable preparation method using type biology carbon composite |
| CN110272085A (en) * | 2019-07-30 | 2019-09-24 | 江南大学 | A kind of modified cyanobacteria biology carbon composite and the application in processing electroplating wastewater |
| CN110787771A (en) * | 2019-10-25 | 2020-02-14 | 天津大学 | Modified blue algae biochar and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 汪岩山: "蓝藻水华对浮游细菌群落结构的影响及蓝藻生物质应用研究", 《中国博士学位论文全文数据库 工程科技I辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112661228A (en) * | 2020-11-12 | 2021-04-16 | 江苏华创检测技术服务有限公司 | Method for purifying rhodamine B dye wastewater |
| CN112897628A (en) * | 2021-03-03 | 2021-06-04 | 南开大学 | Method for adsorbing pollutants by applying biochar material in DOM (document object model) environment |
| CN113967462A (en) * | 2021-06-10 | 2022-01-25 | 南通大学 | Preparation method and application of waste paperboard biochar |
| CN113578269A (en) * | 2021-08-30 | 2021-11-02 | 南通大学 | Waste paperboard biochar for treating rhodamine B dye wastewater and preparation method and application thereof |
| CN115477302A (en) * | 2022-09-29 | 2022-12-16 | 江西科技师范大学 | Biochar and preparation method and application thereof |
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