CN103237772A - 用于核电站高含硼放射性废树脂的水泥固化配方及固化方法 - Google Patents
用于核电站高含硼放射性废树脂的水泥固化配方及固化方法 Download PDFInfo
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- G21F9/302—Processing by fixation in stable solid media in an inorganic matrix
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
- B09B3/25—Agglomeration, binding or encapsulation of solid waste using mineral binders or matrix
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- C—CHEMISTRY; METALLURGY
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
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- C—CHEMISTRY; METALLURGY
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
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- G—PHYSICS
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- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/04—Treating liquids
- G21F9/06—Processing
- G21F9/16—Processing by fixation in stable solid media
- G21F9/162—Processing by fixation in stable solid media in an inorganic matrix, e.g. clays, zeolites
- G21F9/165—Cement or cement-like matrix
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00767—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Civil Engineering (AREA)
Abstract
Description
Claims (11)
- 权 利 要 求1、 一种用于核电站高含硼放射性废树脂的水泥固化配方, 其特征在于, 以固化 100 重量份的高含硼废树脂计, 包括以下重量份数的原料: 水泥 170-260、 石灰 5-20、 水 20-60、 固化助剂 0.25-10和添加剂 2-20。2、根据权利要求 1所述的用于核电站高含硼放射性废树脂的水泥固化配 方, 其特征在于, 以固化 100重量份的高含硼废树脂计, 包括以下重量份数 的原料:水泥 170-200、石灰 10-20、水 20-40、固化助剂 0.25-10和添加剂 4-15。
- 3、根据权利要求 1或 2所述的用于核电站高含硼放射性废树脂的水泥固 化配方, 其特征在于, 所述添加剂为氢氧化钠、 碳酸锂和硅酸钠中至少两种 的混合物。4、根据权利要求 1或 2所述的用于核电站高含硼放射性废树脂的水泥固 化配方, 其特征在于, 所述固化助剂包括聚羧酸盐类减水剂, 其重量份数为 0.25-5。
- 5、根据权利要求 4所述的用于核电站高含硼放射性废树脂的水泥固化配 方, 其特征在于, 所述的聚羧酸盐类减水剂为聚丙烯酸钠、 聚丙烯酸钾、 聚 丁烯酸钠、 聚丁烯酸钾、 Basf glenium51、 Sika ViscoCrete中的一种。
- 6、根据权利要求 4所述的用于核电站高含硼放射性废树脂的水泥固化配 方, 其特征在于, 所述固化助剂还包括偏铝酸钠, 其重量份数为 1-5。7、根据权利要求 1或 2所述的用于核电站高含硼放射性废树脂的水泥固 化配方, 其特征在于, 以固化 100重量份的高含硼废树脂计, 包括以下重量 份数的原料: 水泥 198、 石灰 11、 水 30、 固化助剂 0.25、 添加剂 3.70; 所述 固化助剂为聚丙烯酸钠, 所述添加剂为氢氧化钠和碳酸锂的混合物。 8、根据权利要求 1或 2所述的用于核电站高含硼放射性废树脂的水泥固 化配方, 其特征在于, 以固化 100重量份的高含硼废树脂计, 包括以下重量 份数的原料: 水泥 184、 石灰 10、 水 19、 固化助剂 2、 添加剂 2; 所述固化助 剂为聚丁烯酸钠, 所述添加剂为氢氧化钠和硅酸钠的混合物。9、根据权利要求 1或 2所述的用于核电站高含硼放射性废树脂的水泥固 化配方, 其特征在于, 以固化 100重量份的高含硼废树脂计, 包括以下重量 份数的原料: 水泥 170、 石灰 9、 水 29、 固化助剂 1、 添加剂 2.3 ; 所述固化 助剂为 SikaViscoCrete 20HE, 所述添加剂为碳酸锂和硅酸钠的混合物。
- 10、 一种用于核电高含硼放射性废树脂的固化方法, 其特征在于, 包括以 下步骤:将各种固化剂原料以及高含硼废树脂进行称重或计量准备, 固化配方以 固化 100重量份的高含硼废树脂计,包括以下重量份数的原料:水泥 170-260、 石灰 5-20、 水 20-60、 固化助剂 0.25-10和添加剂 2-20;2)将原料中的石灰加入到固化容器内;3)放入计量好的高含硼废树脂和除水外的其余固化助剂原料;4)边搅拌边加入水泥, 搅拌过程中视物料情况加水, 搅拌至均匀;5)搅拌均匀后静置养护。11、 根据权利要求 10所述的用于核电高含硼放射性废树脂的固化方法, 其特征在于, 所述步骤 1)的固化配方以固化 100重量份的高含硼废树脂计, 包括以下重量份数的原料: 水泥 170-200、 石灰 10-20、 水 20-40、 固化助剂 0.25-10和添加剂 4-15。
- 12、 根据权利要求 10或 11所述的用于核电高含硼放射性废树脂的固化 方法, 其特征在于, 所述步骤 1)的固化配方中的添加剂为氢氧化钠、 碳酸锂 和硅酸钠中至少两种的混合物。13、 根据权利要求 10或 11所述的用于核电高含硼放射性废树脂的固化 方法, 其特征在于, 所述步骤 1)的固化配方中的固化助剂包括聚羧酸盐类减 水剂, 其重量份数为 0.25-5。
- 14、 根据权利要求 10或 11所述的用于核电高含硼放射性废树脂的固化 方法, 其特征在于, 所述固化配方中的聚羧酸盐类减水剂为聚丙烯酸钠、 聚 丙烯酸钾、 聚丁烯酸钠、 聚丁烯酸钾、 Basf glenium51、 Sika ViscoCrete的一 种。
- 15、 根据权利要求 10或 11所述的用于核电站高含硼放射性废树脂的水 泥固化配方, 其特征在于, 所述步骤 1)中, 所述固化助剂还包括偏铝酸钠, 其重量份数为 1-5。
- 16、 根据权利要求 10或 11所述的用于核电高含硼放射性废树脂的固化 方法, 其特征在于, 所述步骤 1)中检测高含硼废树脂中所含游离水的重量比 来折算出高含硼废树脂的应称重量和水的应称重量, 对所述各种固化剂原料 进行称重, 并将固化助剂和添加剂加水溶解制成溶液。
- 17、 根据权利要求 10或 11所述的用于核电高含硼放射性废树脂的固化 方法, 其特征在于, 所述步骤 3)中通过计量罐向固化容器内放入带有游离水 的高含硼废树脂, 开动搅拌桨进行搅拌, 然后加入固化助剂和添加剂, 其中 搅拌速度前期为 15-25rpm<sub>;</sub> 后期为 40-60rpm, 搅拌时间总和为 100-120min, 采用垂直轴式搅拌方式。18、 根据权利要求 10或 11所述的用于核电高含硼放射性废树脂的固化 方法, 其特征在于, 所述步骤 4)中开动搅拌机, 搅拌速度为 15-25rpm, 边搅 拌边通过水泥料斗向容器内慢慢加入水泥;水泥加入速度为 800-1200kg/h,搅 拌过程中逐步加水至满足固化配方要求的水的重量份数, 继续搅拌 0.5h, 并 且提桨、 降桨上下搅拌, 直至搅拌均匀。
- 19、 根据权利要求 10或 11所述的用于核电高含硼放射性废树脂的固化 方法, 其特征在于, 所述步骤 5)中停止搅拌后将固化容器送至养护间, 表面 覆盖遮蔽物静置养护 28天。
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CN109712740A (zh) * | 2017-10-25 | 2019-05-03 | 株式会社奥特-塞特 | 污染土壤处理方法、处理装置以及处理系统 |
CN110189846A (zh) * | 2019-05-17 | 2019-08-30 | 岭东核电有限公司 | 水泥固化工艺及其系统 |
CN110797132A (zh) * | 2019-10-23 | 2020-02-14 | 江苏中海华核环保有限公司 | 一种稳定放射性核素的废树脂处理方法 |
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