WO2024187607A1 - Method for preparing phosphorus-adsorbing material by using phosphate rock tailings - Google Patents
Method for preparing phosphorus-adsorbing material by using phosphate rock tailings Download PDFInfo
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- WO2024187607A1 WO2024187607A1 PCT/CN2023/099580 CN2023099580W WO2024187607A1 WO 2024187607 A1 WO2024187607 A1 WO 2024187607A1 CN 2023099580 W CN2023099580 W CN 2023099580W WO 2024187607 A1 WO2024187607 A1 WO 2024187607A1
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- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
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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
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
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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
- C02F2101/105—Phosphorus compounds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Y02W30/00—Technologies for solid waste management
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- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Definitions
- the invention relates to a preparation method of a phosphorus adsorption material using phosphate ore tailings.
- the adsorption material is used for treating phosphorus-containing wastewater and belongs to the wastewater treatment sector in the environmental protection field.
- Phosphate resources are extremely limited in nature. It is estimated that there is only enough phosphate on Earth for human use for about 200 years. Phosphorus is an important nutrient element for all life on Earth. Without phosphorus, there would be no life on Earth. The formation of phosphate requires more than 10 million years, but at the current mining rate in China, it can only be mined for a few decades at most.
- pH value is the factor that has the greatest impact on phosphorus removal effect. As the pH value increases, the solubility of hydroxyapatite drops sharply, that is, the phosphorus removal rate increases rapidly. When the pH value is greater than 9.5, all phosphates in the water are converted into insoluble precipitates. Generally, the pH value is controlled between 9.5 and 10, and the phosphorus removal effect is best. Metal ions in wastewater have a great influence on the amount of lime used, and the amount of lime added for different wastewaters is different. If you want to keep the phosphorus content in the treated water below 1 mg/L, the pH value should be above 9.5 for secondary treated water and above 11 for raw wastewater.
- the purpose of the present invention is to overcome the drawbacks of the above-mentioned existing lime method for treating phosphorus wastewater, and provide a preparation method for phosphorus adsorption material using phosphate ore tailings, and use phosphate ore tailings to make phosphorus adsorption material for treating phosphorus wastewater, and add the modified composite adsorbent to low-concentration phosphorus-containing wastewater according to a set dosage to adsorb and remove phosphorus and heavy metal ions in the water.
- a method for preparing a phosphorus adsorption material using phosphate ore tailings characterized by the following steps:
- the required silicon-containing raw materials and calcium-containing raw materials are first crushed, pulverized and sieved to obtain powder raw materials with a particle size of 200 mesh to 600 mesh;
- step (1) Mix the silicon-containing raw material and the calcium-containing raw material in step (1) in a certain proportion, and then add a certain modifier. Prepare modified slurry with water;
- step (3) Place the modified slurry in step (2) in a reaction tank, place the reaction tank in a sealed container, introduce steam into the container, control the pressure at 0.2-1.6 MPa, control the temperature at 120-200° C., and control the reaction time at 2-16 h to obtain a porous structure composite phosphorus adsorption material.
- the silicon-containing raw material in step (1) is composed of one or more of diatomaceous earth, fly ash and steel slag.
- the calcium-containing raw material in step (1) is one or more of quicklime, slaked lime, limestone, gypsum, phosphogypsum or yellow phosphorus slag.
- the modifier described in step (2) is one or more of sodium dodecylbenzene sulfonate, aluminum powder, sodium carbonate, sodium bicarbonate, rosin thermal polymer, and polyethylene glycol.
- the mass fractions of the silicon-containing raw material, calcium-containing raw material and modifier in step (2) are: 20-70 for silicon-containing raw material, 20-70 for calcium-containing raw material and 0.5-10 for modifier.
- the prepared porous structure composite phosphorus adsorption material is used for treating phosphorus-containing wastewater.
- the phosphorus adsorption material prepared by the present invention has the following advantages: the phosphorus adsorption material is made by foaming, has a high specific surface area and high porosity, and is used in the field of sewage treatment, especially for the adsorption of phosphorus in phosphorus-containing wastewater; and the removal rate is not limited by the pH value of the phosphorus-containing wastewater.
- a method for preparing a phosphorus adsorption material using phosphate ore tailings is carried out in the following steps:
- diatomaceous earth and yellow phosphorus slag are first crushed and sieved to obtain 325 mesh diatomaceous earth and 200 mesh yellow phosphorus slag;
- step (3) The modified slurry in step (2) is placed in a reaction tank, the reaction tank is placed in a sealed container, steam is introduced into the container, the pressure is controlled at 1.5 MPa, the temperature is controlled at 198° C., and the reaction time is controlled at 3 h to obtain a porous structure composite phosphorus adsorption material.
- the prepared phosphorus adsorption material was broken into 5 mm small pieces, and 100 g of the phosphorus adsorption material was put into 1 L of 20 mg/L phosphorus-containing wastewater. After fully stirring for 1 hour, the phosphorus concentration in the wastewater was detected to be 3.88 mg/L. The phosphorus adsorption capacity of this phosphorus adsorption material was converted to 161.2 g/t.
- a method for preparing a phosphorus adsorption material using phosphate ore tailings is carried out in the following steps:
- diatomite, slaked lime and phosphogypsum are first crushed and sieved to obtain 325 mesh diatomite, 600 mesh slaked lime and 200 mesh phosphogypsum;
- step (3) The modified slurry in step (2) is placed in a reaction tank, the reaction tank is placed in a sealed container, steam is introduced into the container, the pressure is controlled at 0.2 MPa, the temperature is controlled at 120° C., and the reaction time is controlled at 16 h to obtain a porous structure composite phosphorus adsorption material.
- the prepared phosphorus adsorption material was broken into 5 mm small pieces, and 100 g of the phosphorus adsorption material was put into 1 L of 20 mg/L phosphorus-containing wastewater. After fully stirring for 1 hour, the phosphorus concentration in the wastewater was detected to be 5.69 mg/L. The phosphorus adsorption capacity of this phosphorus adsorption material was converted to 143.1 g/t.
- a method for preparing a phosphorus adsorption material using phosphate ore tailings is carried out in the following steps:
- fly ash, gypsum and yellow phosphorus slag are first crushed and sieved to obtain fly ash of 400 mesh, gypsum of 600 mesh and yellow phosphorus slag of 300 mesh;
- step (3) The modified slurry in step (2) is placed in a reaction tank, the reaction tank is placed in a sealed container, steam is introduced into the container, the pressure is controlled at 1.0 MPa, the temperature is controlled at 180° C., and the reaction time is controlled at 10 h to obtain a porous structure composite phosphorus adsorption material.
- the prepared phosphorus adsorption material was broken into 5 mm small pieces, and 100 g of the phosphorus adsorption material was put into 1 L of 20 mg/L phosphorus-containing wastewater. After fully stirring for 1 hour, the phosphorus concentration in the wastewater was detected to be 4.23 mg/L. The phosphorus adsorption capacity of this phosphorus adsorption material was converted to 157.7 g/t.
- a method for preparing a phosphorus adsorption material using phosphate ore tailings is carried out in the following steps:
- fly ash, steel slag, slaked lime and phosphogypsum are first crushed and sieved to obtain fly ash of 300 mesh, steel slag of 300 mesh, slaked lime of 600 mesh and phosphogypsum of 200 mesh;
- step (3) placing the modified slurry in step (2) in a reaction tank, placing the reaction tank in a sealed container, introducing steam into the container, controlling the pressure at 0.2 MPa, the temperature at 120° C., and the reaction time at 12 h to obtain a porous structure composite Phosphorus adsorbing materials.
- the prepared phosphorus adsorption material was broken into 5 mm small pieces, and 100 g of the phosphorus adsorption material was put into 1 L of 20 mg/L phosphorus-containing wastewater. After fully stirring for 1 hour, the phosphorus concentration in the wastewater was detected to be 6.22 mg/L. The phosphorus adsorption capacity of this phosphorus adsorption material was converted to 137.8 g/t.
- a method for preparing a phosphorus adsorption material using phosphate ore tailings is carried out in the following steps:
- fly ash and gypsum are first crushed and sieved to obtain fly ash of 400 mesh and gypsum of 600 mesh;
- step (3) The modified slurry in step (2) is placed in a reaction tank, the reaction tank is placed in a sealed container, steam is introduced into the container, the pressure is controlled at 1.6 MPa, the temperature is controlled at 200° C., and the reaction time is controlled at 4 h to obtain a porous structure composite phosphorus adsorption material.
- the prepared phosphorus adsorption material was broken into 5 mm small pieces, and 100 g of the phosphorus adsorption material was put into 1 L of 20 mg/L phosphorus-containing wastewater. After fully stirring for 1 hour, the phosphorus concentration in the wastewater was detected to be 2.99 mg/L. The phosphorus adsorption capacity of this phosphorus adsorption material was converted to 170.1 g/t.
- a method for preparing a phosphorus adsorption material using phosphate ore tailings is carried out in the following steps:
- diatomaceous earth, fly ash, gypsum and quicklime are first crushed and sieved to obtain 400 mesh diatomaceous earth, 400 mesh fly ash, 500 mesh gypsum and 500 mesh quicklime;
- step (3) The modified slurry in step (2) is placed in a reaction tank, the reaction tank is placed in a sealed container, steam is introduced into the container, the pressure is controlled at 0.8 MPa, the temperature is controlled at 170° C., and the reaction time is controlled at 10 h to obtain a porous structure composite phosphorus adsorption material.
- the prepared phosphorus adsorption material was broken into 5 mm small pieces, and 100 g of the phosphorus adsorption material was put into 1 L of 20 mg/L phosphorus-containing wastewater. After fully stirring for 1 hour, the phosphorus concentration in the wastewater was detected to be 5.07 mg/L. The phosphorus adsorption capacity of this phosphorus adsorption material was converted to 149.3 g/t.
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Abstract
Description
本发明涉及一种利用磷矿尾矿制作磷吸附材料的制备方法，此吸附材料用于含磷废水的处理，属环保领域废水处理板块。The invention relates to a preparation method of a phosphorus adsorption material using phosphate ore tailings. The adsorption material is used for treating phosphorus-containing wastewater and belongs to the wastewater treatment sector in the environmental protection field.
磷矿资源在自然界储量极其有限，据估算，地球上的磷矿大概仅够人类使用200年左右。磷是地球一切生命体的重要营养元素，没有磷，地球上就不可能有生命。磷矿的形成需要1000万年以上的时间，但若按照中国目前的开采速度，最多只能开采几十年。Phosphate resources are extremely limited in nature. It is estimated that there is only enough phosphate on Earth for human use for about 200 years. Phosphorus is an important nutrient element for all life on Earth. Without phosphorus, there would be no life on Earth. The formation of phosphate requires more than 10 million years, but at the current mining rate in China, it can only be mined for a few decades at most.
磷资源的有限性对人类而言是一场巨大的危机。与此同时，人类还面对着另一场磷污染危机：废水中磷污染会加速藻类生长，消耗水中溶解氧，造成水体富营养化，造成水资源的严重污染。最新数据显示，我国超过一半的河流湖泊和水库富营养化。The limited phosphorus resources are a huge crisis for human beings. At the same time, human beings are also facing another phosphorus pollution crisis: phosphorus pollution in wastewater will accelerate the growth of algae, consume dissolved oxygen in water, cause eutrophication of water bodies, and cause serious pollution of water resources. The latest data shows that more than half of my country's rivers, lakes and reservoirs are eutrophic.
传统石灰法除磷，pH值是影响除磷效果大的因素，随着pH值的升高，羟基磷灰石的溶解度急剧下降，即磷的去除率迅速增加，pH值大于9.5后，水中所有磷酸盐都转为不溶性的沉淀。一般控制pH值在9.5～10之间，除磷效果最好。废水中金属离子对石灰用量影响较大，对于不同废水的石灰投加量不一。如欲使处理水中磷的含量在1mg/L以下时，对二级处理水，pH值应在9.5以上，对原废水则应在11以上。In traditional lime phosphorus removal, pH value is the factor that has the greatest impact on phosphorus removal effect. As the pH value increases, the solubility of hydroxyapatite drops sharply, that is, the phosphorus removal rate increases rapidly. When the pH value is greater than 9.5, all phosphates in the water are converted into insoluble precipitates. Generally, the pH value is controlled between 9.5 and 10, and the phosphorus removal effect is best. Metal ions in wastewater have a great influence on the amount of lime used, and the amount of lime added for different wastewaters is different. If you want to keep the phosphorus content in the treated water below 1 mg/L, the pH value should be above 9.5 for secondary treated water and above 11 for raw wastewater.
石灰法处理磷废水存在的弊端：石灰用于前置除磷后污水pH值较高，进生物处理系统前需调节pH值；石灰用于后置除磷时，处理后的出水必须调节pH值才能满足排放要求。The disadvantages of lime method for treating phosphorus wastewater: when lime is used for pre-phosphorus removal, the pH value of wastewater is relatively high, and the pH value needs to be adjusted before entering the biological treatment system; when lime is used for post-phosphorus removal, the pH value of the treated effluent must be adjusted to meet the discharge requirements.
发明内容Summary of the invention
本发明的目的为了克服上述现有石灰法处理磷废水技术存在的弊端，提供一种利用磷矿尾矿制作磷吸附材料的制备方法，利用磷矿尾矿制作磷吸附材料用于处理磷废水，将改性复合吸附剂按照设定的投加量，添加至低浓度含磷废水中，对水中的磷和重金属离子进行吸附去除。The purpose of the present invention is to overcome the drawbacks of the above-mentioned existing lime method for treating phosphorus wastewater, and provide a preparation method for phosphorus adsorption material using phosphate ore tailings, and use phosphate ore tailings to make phosphorus adsorption material for treating phosphorus wastewater, and add the modified composite adsorbent to low-concentration phosphorus-containing wastewater according to a set dosage to adsorb and remove phosphorus and heavy metal ions in the water.
本发明采用了如下技术方案：The present invention adopts the following technical solutions:
一种利用磷矿尾矿制作磷吸附材料的制备方法，其特征在于按以下步骤进行：A method for preparing a phosphorus adsorption material using phosphate ore tailings, characterized by the following steps:
(1)、将所需含硅原料、含钙原料先进行破碎、粉碎、筛分处理，筛分后制得粒径在200目～600目的粉末原料；(1) The required silicon-containing raw materials and calcium-containing raw materials are first crushed, pulverized and sieved to obtain powder raw materials with a particle size of 200 mesh to 600 mesh;
(2)、将步骤(1)中含硅原料、含钙原料按照一定比例混合，再添加一定的改性剂， 用水调制成改性料浆；(2) Mix the silicon-containing raw material and the calcium-containing raw material in step (1) in a certain proportion, and then add a certain modifier. Prepare modified slurry with water;
(3)、将步骤(2)中的改性料浆放于反应槽中，反应槽置入密闭的容器中，向容器中通入蒸汽，控制压力于0.2～1.6MPa，控制温度于120～200℃，控制反应时间于2～16h，制得多孔结构复合的磷吸附材料。(3) Place the modified slurry in step (2) in a reaction tank, place the reaction tank in a sealed container, introduce steam into the container, control the pressure at 0.2-1.6 MPa, control the temperature at 120-200° C., and control the reaction time at 2-16 h to obtain a porous structure composite phosphorus adsorption material.
步骤(1)所述的含硅原料为硅藻土、粉煤灰、钢渣的一种或两种以上组成。The silicon-containing raw material in step (1) is composed of one or more of diatomaceous earth, fly ash and steel slag.
步骤(1)所述的含钙原料为生石灰、熟石灰、石灰石、石膏、磷石膏或黄磷渣中的一种或两种以上组成。The calcium-containing raw material in step (1) is one or more of quicklime, slaked lime, limestone, gypsum, phosphogypsum or yellow phosphorus slag.
步骤(2)所述的改性剂为十二烷基苯磺酸钠、铝粉、碳酸钠、碳酸氢钠、松香热聚物、聚乙二醇中的一种或者两种以上组成。The modifier described in step (2) is one or more of sodium dodecylbenzene sulfonate, aluminum powder, sodium carbonate, sodium bicarbonate, rosin thermal polymer, and polyethylene glycol.
步骤(2)所述的含硅原料、含钙原料、改性剂的质量份数为：含硅原料20-70，含钙原料20-70，改性剂0.5-10。The mass fractions of the silicon-containing raw material, calcium-containing raw material and modifier in step (2) are: 20-70 for silicon-containing raw material, 20-70 for calcium-containing raw material and 0.5-10 for modifier.
将制得多孔结构复合的磷吸附材料用于含磷废水的处理。The prepared porous structure composite phosphorus adsorption material is used for treating phosphorus-containing wastewater.
与现有技术相比，本发明制备的磷吸附材料具备以下优点：该磷吸附材料发泡制作而成，具备高比表面积、高孔隙率，应用于污水处理领域，尤其是含磷废水吸附磷；且去除率不受含磷废水pH值的限制。Compared with the prior art, the phosphorus adsorption material prepared by the present invention has the following advantages: the phosphorus adsorption material is made by foaming, has a high specific surface area and high porosity, and is used in the field of sewage treatment, especially for the adsorption of phosphorus in phosphorus-containing wastewater; and the removal rate is not limited by the pH value of the phosphorus-containing wastewater.
结合实施例对本发明作进一步描述。The present invention is further described in conjunction with embodiments.
实施例1Example 1
一种利用磷矿尾矿制作磷吸附材料的制备方法，按以下步骤进行：A method for preparing a phosphorus adsorption material using phosphate ore tailings is carried out in the following steps:
(1)将硅藻土、黄磷渣先进行粉碎、筛分处理，制得硅藻土325目、黄磷渣200目；(1) diatomaceous earth and yellow phosphorus slag are first crushed and sieved to obtain 325 mesh diatomaceous earth and 200 mesh yellow phosphorus slag;
(2)将40份硅藻土、50份黄磷渣、添加10份碳酸钠，充分混合，用水调制成改性料浆；(2) 40 parts of diatomaceous earth, 50 parts of yellow phosphorus slag, and 10 parts of sodium carbonate are added, mixed thoroughly, and prepared into a modified slurry with water;
(3)将步骤(2)中的改性料浆放于反应槽中，反应槽置入密闭的容器中，向容器中通入蒸汽，控制压力于1.5MPa，控制温度于198℃，控制反应时间于3h，制得一种多孔结构复合的磷吸附材料。(3) The modified slurry in step (2) is placed in a reaction tank, the reaction tank is placed in a sealed container, steam is introduced into the container, the pressure is controlled at 1.5 MPa, the temperature is controlled at 198° C., and the reaction time is controlled at 3 h to obtain a porous structure composite phosphorus adsorption material.
将制得的磷吸附材料，进行破碎成5mm小块，将100g磷吸附材料放入1L配制20mg/L含磷废水中，充分搅拌1h后，检测废水中磷浓度为3.88mg/L。折算此磷吸附材料的磷吸附量为161.2g/t。The prepared phosphorus adsorption material was broken into 5 mm small pieces, and 100 g of the phosphorus adsorption material was put into 1 L of 20 mg/L phosphorus-containing wastewater. After fully stirring for 1 hour, the phosphorus concentration in the wastewater was detected to be 3.88 mg/L. The phosphorus adsorption capacity of this phosphorus adsorption material was converted to 161.2 g/t.
实施例2Example 2
一种利用磷矿尾矿制作磷吸附材料的制备方法，按以下步骤进行： A method for preparing a phosphorus adsorption material using phosphate ore tailings is carried out in the following steps:
(1)将硅藻土、熟石灰、磷石膏先进行粉碎、筛分处理，制得硅藻土325目、熟石灰600目、磷石膏200目；(1) diatomite, slaked lime and phosphogypsum are first crushed and sieved to obtain 325 mesh diatomite, 600 mesh slaked lime and 200 mesh phosphogypsum;
(2)将25份硅藻土、40份熟石灰、30份磷石膏，添加5份聚乙二醇，充分混合，用水调制成改性料浆；(2) 25 parts of diatomaceous earth, 40 parts of slaked lime, and 30 parts of phosphogypsum are added with 5 parts of polyethylene glycol, mixed thoroughly, and prepared into a modified slurry with water;
(3)将步骤(2)中的改性料浆放于反应槽中，反应槽置入密闭的容器中，向容器中通入蒸汽，控制压力于0.2MPa，控制温度于120℃，控制反应时间于16h，制得一种多孔结构复合的磷吸附材料。(3) The modified slurry in step (2) is placed in a reaction tank, the reaction tank is placed in a sealed container, steam is introduced into the container, the pressure is controlled at 0.2 MPa, the temperature is controlled at 120° C., and the reaction time is controlled at 16 h to obtain a porous structure composite phosphorus adsorption material.
将制得的磷吸附材料，进行破碎成5mm小块，将100g磷吸附材料放入1L配制20mg/L含磷废水中，充分搅拌1h后，检测废水中磷浓度为5.69mg/L。折算此磷吸附材料的磷吸附量为143.1g/t。The prepared phosphorus adsorption material was broken into 5 mm small pieces, and 100 g of the phosphorus adsorption material was put into 1 L of 20 mg/L phosphorus-containing wastewater. After fully stirring for 1 hour, the phosphorus concentration in the wastewater was detected to be 5.69 mg/L. The phosphorus adsorption capacity of this phosphorus adsorption material was converted to 143.1 g/t.
实施例3Example 3
一种利用磷矿尾矿制作磷吸附材料的制备方法，按以下步骤进行：A method for preparing a phosphorus adsorption material using phosphate ore tailings is carried out in the following steps:
(1)将粉煤灰、石膏、黄磷渣先进行粉碎、筛分处理，制得粉煤灰400目、石膏600目、黄磷渣300目；(1) Fly ash, gypsum and yellow phosphorus slag are first crushed and sieved to obtain fly ash of 400 mesh, gypsum of 600 mesh and yellow phosphorus slag of 300 mesh;
(2)将50粉煤灰、20份石膏、28份黄磷渣,添加2份铝粉，充分混合，用水调制成改性料浆(2) Add 2 parts of aluminum powder to 50 parts of fly ash, 20 parts of gypsum, 28 parts of yellow phosphorus slag, mix thoroughly, and prepare modified slurry with water.
(3)将步骤(2)中的改性料浆放于反应槽中，反应槽置入密闭的容器中，向容器中通入蒸汽，控制压力于1.0MPa，控制温度于180℃，控制反应时间于10h，制得一种多孔结构复合的磷吸附材料。(3) The modified slurry in step (2) is placed in a reaction tank, the reaction tank is placed in a sealed container, steam is introduced into the container, the pressure is controlled at 1.0 MPa, the temperature is controlled at 180° C., and the reaction time is controlled at 10 h to obtain a porous structure composite phosphorus adsorption material.
将制得的磷吸附材料，进行破碎成5mm小块，将100g磷吸附材料放入1L配制20mg/L含磷废水中，充分搅拌1h后，检测废水中磷浓度为4.23mg/L。折算此磷吸附材料的磷吸附量为157.7g/t。The prepared phosphorus adsorption material was broken into 5 mm small pieces, and 100 g of the phosphorus adsorption material was put into 1 L of 20 mg/L phosphorus-containing wastewater. After fully stirring for 1 hour, the phosphorus concentration in the wastewater was detected to be 4.23 mg/L. The phosphorus adsorption capacity of this phosphorus adsorption material was converted to 157.7 g/t.
实施例4Example 4
一种利用磷矿尾矿制作磷吸附材料的制备方法，按以下步骤进行：A method for preparing a phosphorus adsorption material using phosphate ore tailings is carried out in the following steps:
(1)将粉煤灰、钢渣、熟石灰、磷石膏先进行粉碎、筛分处理，制得粉煤灰300目、钢渣300目、熟石灰600目、磷石膏200目；(1) Fly ash, steel slag, slaked lime and phosphogypsum are first crushed and sieved to obtain fly ash of 300 mesh, steel slag of 300 mesh, slaked lime of 600 mesh and phosphogypsum of 200 mesh;
(2)将10份粉煤灰、10份钢渣、40份熟石灰、30份磷石膏，添加10份碳酸氢钠，充分混合，用水调制成改性料浆；(2) Add 10 parts of sodium bicarbonate to 10 parts of fly ash, 10 parts of steel slag, 40 parts of slaked lime, and 30 parts of phosphogypsum, mix thoroughly, and prepare a modified slurry with water;
(3)将步骤(2)中的改性料浆放于反应槽中，反应槽置入密闭的容器中，向容器中通入蒸汽，控制压力于0.2MPa，控制温度于120℃，控制反应时间于12h，制得一种多孔结构复合 的磷吸附材料。(3) placing the modified slurry in step (2) in a reaction tank, placing the reaction tank in a sealed container, introducing steam into the container, controlling the pressure at 0.2 MPa, the temperature at 120° C., and the reaction time at 12 h to obtain a porous structure composite Phosphorus adsorbing materials.
将制得的磷吸附材料，进行破碎成5mm小块，将100g磷吸附材料放入1L配制20mg/L含磷废水中，充分搅拌1h后，检测废水中磷浓度为6.22mg/L。折算此磷吸附材料的磷吸附量为137.8g/t。The prepared phosphorus adsorption material was broken into 5 mm small pieces, and 100 g of the phosphorus adsorption material was put into 1 L of 20 mg/L phosphorus-containing wastewater. After fully stirring for 1 hour, the phosphorus concentration in the wastewater was detected to be 6.22 mg/L. The phosphorus adsorption capacity of this phosphorus adsorption material was converted to 137.8 g/t.
实施例5Example 5
一种利用磷矿尾矿制作磷吸附材料的制备方法，按以下步骤进行：A method for preparing a phosphorus adsorption material using phosphate ore tailings is carried out in the following steps:
(1)将粉煤灰、石膏先进行粉碎、筛分处理，制得粉煤灰400目、石膏600目；(1) The fly ash and gypsum are first crushed and sieved to obtain fly ash of 400 mesh and gypsum of 600 mesh;
(2)将70份粉煤灰、29.5份石膏,添加0.5份松香热聚物，充分混合，用水调制成改性料浆(2) Add 0.5 part of rosin thermopolymer to 70 parts of fly ash and 29.5 parts of gypsum, mix thoroughly, and prepare modified slurry with water.
(3)将步骤(2)中的改性料浆放于反应槽中，反应槽置入密闭的容器中，向容器中通入蒸汽，控制压力于1.6MPa，控制温度于200℃，控制反应时间于4h，制得一种多孔结构复合的磷吸附材料。(3) The modified slurry in step (2) is placed in a reaction tank, the reaction tank is placed in a sealed container, steam is introduced into the container, the pressure is controlled at 1.6 MPa, the temperature is controlled at 200° C., and the reaction time is controlled at 4 h to obtain a porous structure composite phosphorus adsorption material.
将制得的磷吸附材料，进行破碎成5mm小块，将100g磷吸附材料放入1L配制20mg/L含磷废水中，充分搅拌1h后，检测废水中磷浓度为2.99mg/L。折算此磷吸附材料的磷吸附量为170.1g/t。The prepared phosphorus adsorption material was broken into 5 mm small pieces, and 100 g of the phosphorus adsorption material was put into 1 L of 20 mg/L phosphorus-containing wastewater. After fully stirring for 1 hour, the phosphorus concentration in the wastewater was detected to be 2.99 mg/L. The phosphorus adsorption capacity of this phosphorus adsorption material was converted to 170.1 g/t.
实施例6Example 6
一种利用磷矿尾矿制作磷吸附材料的制备方法，按以下步骤进行：A method for preparing a phosphorus adsorption material using phosphate ore tailings is carried out in the following steps:
(1)将硅藻土、粉煤灰、石膏、生石灰先进行粉碎、筛分处理，制得硅藻土400目、粉煤灰400目、石膏500目、生石灰500目；(1) diatomaceous earth, fly ash, gypsum and quicklime are first crushed and sieved to obtain 400 mesh diatomaceous earth, 400 mesh fly ash, 500 mesh gypsum and 500 mesh quicklime;
(2)将40份硅藻土、30份粉煤灰、10份石膏、10份生石灰,添加10份十二烷基苯磺酸钠，充分混合，用水调制成改性料浆(2) Add 10 parts of sodium dodecylbenzene sulfonate to 40 parts of diatomaceous earth, 30 parts of fly ash, 10 parts of gypsum, and 10 parts of quicklime, mix thoroughly, and prepare a modified slurry with water.
(3)将步骤(2)中的改性料浆放于反应槽中，反应槽置入密闭的容器中，向容器中通入蒸汽，控制压力于0.8MPa，控制温度于170℃，控制反应时间于10h，制得一种多孔结构复合的磷吸附材料。(3) The modified slurry in step (2) is placed in a reaction tank, the reaction tank is placed in a sealed container, steam is introduced into the container, the pressure is controlled at 0.8 MPa, the temperature is controlled at 170° C., and the reaction time is controlled at 10 h to obtain a porous structure composite phosphorus adsorption material.
将制得的磷吸附材料，进行破碎成5mm小块，将100g磷吸附材料放入1L配制20mg/L含磷废水中，充分搅拌1h后，检测废水中磷浓度为5.07mg/L。折算此磷吸附材料的磷吸附量为149.3g/t。 The prepared phosphorus adsorption material was broken into 5 mm small pieces, and 100 g of the phosphorus adsorption material was put into 1 L of 20 mg/L phosphorus-containing wastewater. After fully stirring for 1 hour, the phosphorus concentration in the wastewater was detected to be 5.07 mg/L. The phosphorus adsorption capacity of this phosphorus adsorption material was converted to 149.3 g/t.
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| JP2010234280A (en) * | 2009-03-31 | 2010-10-21 | Hokuriku Electric Power Co Inc:The | Phosphorus adsorbent and method for manufacturing fertilizer using the same |
| CN101973599A (en) * | 2010-10-25 | 2011-02-16 | 武汉理工大学 | Method for adsorbing phosphorus pollutants in water by using waste residues in iron and steel industry |
| JP2013202463A (en) * | 2012-03-27 | 2013-10-07 | Hokuriku Electric Power Co Inc:The | Phosphorus recovery material, phosphorus recovery method and producing method of fertilizer |
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| CN116116378A (en) * | 2023-03-15 | 2023-05-16 | 湖北富邦科技股份有限公司 | Preparation method for preparing phosphorus adsorption material by utilizing phosphate rock tailings |
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| JP2010234280A (en) * | 2009-03-31 | 2010-10-21 | Hokuriku Electric Power Co Inc:The | Phosphorus adsorbent and method for manufacturing fertilizer using the same |
| CN101973599A (en) * | 2010-10-25 | 2011-02-16 | 武汉理工大学 | Method for adsorbing phosphorus pollutants in water by using waste residues in iron and steel industry |
| JP2013202463A (en) * | 2012-03-27 | 2013-10-07 | Hokuriku Electric Power Co Inc:The | Phosphorus recovery material, phosphorus recovery method and producing method of fertilizer |
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| CN119349988A (en) * | 2024-10-29 | 2025-01-24 | 武汉科技大学 | A high-dosage phosphogypsum-based super-insulating porous high-temperature resistant material and a preparation method thereof |
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