Detergent for uranium-containing wastewater and method for treating uranium-containing wastewater

A decontaminant and waste water technology, applied in water/sewage treatment, adsorbed water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of cumbersome treatment, high operating cost and raw material cost, long and complicated process flow, etc. problems, to achieve high processing efficiency, good decontamination effect, and good selectivity.

Active Publication Date: 2017-12-05
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The traditional methods for treating uranium-containing wastewater mainly include extraction, evaporation and concentration, and oxidation-reduction methods. These traditional methods for treating uranium-containing wastewater have lengthy and complicated processes in the actual operation process, cumbersome treatment, and the need for secondary waste For reprocessing, and when it is used to treat low-content and large-volume uranium-containing radioactive wastewater, the operating costs and raw material costs are often relatively high

Method used

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  • Detergent for uranium-containing wastewater and method for treating uranium-containing wastewater
  • Detergent for uranium-containing wastewater and method for treating uranium-containing wastewater
  • Detergent for uranium-containing wastewater and method for treating uranium-containing wastewater

Examples

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Effect test

Embodiment 1

[0043] Embodiment 1 Preparation of waste water detergent 1

[0044] The natural green zeolite is crushed and screened to a particle size of 40-120 mesh, and then the natural green zeolite in three particle size ranges of 40-60 mesh, 40-100 mesh and 100-120 mesh is uniformly mixed according to the volume ratio of 1:15:1; The artificial zeolite is crushed and sieved to a particle size of 40 mesh to 150 mesh, and the artificial zeolite in the three particle size ranges of 40-60 mesh, 40-100 mesh and 100-150 mesh is evenly mixed according to the volume ratio of 1:15:1 and then uniformly mixed green zeolite, artificial zeolite and calcium phosphate according to the volume ratio of 60:4:1 to prepare waste water detergent 1.

Embodiment 2

[0045] Embodiment 2 Preparation of waste water detergent 2

[0046] Crushing and screening the natural green zeolite to a particle size of 40-120 mesh, and then uniformly mixing natural green zeolite in three particle size ranges of 40-60 mesh, 40-100 mesh and 100-120 mesh according to a volume ratio of 0.5:10:0.5; Sieve the man-made artificial zeolite to the particle size of 40 mesh to 150 mesh, and then mix the artificial zeolite in the three particle size ranges of 40-60 mesh, 40-100 mesh and 100-150 mesh evenly according to the volume ratio of 0.5:10:0.5 and then uniformly mixed green zeolite, artificial zeolite and calcium phosphate according to the volume ratio of 50:2.5:1 to prepare waste water detergent 2.

Embodiment 3

[0047] Embodiment 3 Preparation of waste water detergent 3

[0048] The natural green zeolite is crushed and screened to a particle size of 40-120 mesh, and then the natural green zeolite in three particle size ranges of 40-60 mesh, 40-100 mesh and 100-120 mesh is uniformly mixed according to the volume ratio of 1.5:25:1.5; Sieve the man-made artificial zeolite to the particle size of 40 mesh to 150 mesh, and then mix the artificial zeolite in the three particle size ranges of 40-60 mesh, 40-100 mesh and 100-150 mesh according to the volume ratio of 1.5:25:1.5 and then uniformly mix green zeolite, artificial zeolite and calcium phosphate according to the volume ratio of 75:7.5:1.5 to prepare waste water detergent 3.

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Abstract

The invention relates to a decontamination agent for uranium-containing wastewater. The decontamination agent for uranium-containing wastewater is composed of zeolite with a particle size of 40-150 mesh and phosphate with a particle size of less than 60 mesh. The volume ratio of the zeolite to phosphate is 50-75 : 1, the zeolite includes natural green zeolite and artificial zeolite; when the uranium-containing radioactive waste water with certain conditions flows through the reaction bed filled with the detergent at an appropriate flow rate, the uranium ion in the waste water is promptly removed, Thereby, the water body whose uranium content can meet the national discharge standard is obtained; the removed uranium is trapped in the reaction bed and forms a certain form of secondary uranium-containing minerals, which can be leached by acid Refining and utilization; the invention can achieve the purpose of both removing pollution and recovering uranium element at the same time, and has great popularization and application value.

Description

technical field [0001] The invention relates to the field of wastewater treatment, in particular to a decontaminant for uranium-containing wastewater and a method for treating uranium-containing wastewater. Background technique [0002] The uranium-containing radioactive wastewater produced by uranium mining, uranium smelting, decommissioning of uranium mining and smelting facilities, reactor operation, radiochemical separation and other processes is extremely harmful to the ecological environment and human health. If it is not treated, it will be discharged into the environment , will have extremely serious consequences. Uranium-containing radioactive wastewater can cause a variety of damage and pathogenic effects on organisms and the human body. It can cause hair loss, erythema on the skin, reduction of white blood cells, red blood cells or platelets, cataracts, cancer, and affect reproductive functions. Can cause death. With the development of the nuclear industry, rese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/18B01J20/30C02F1/28C02F1/62
Inventor 陈迪云张晓峰宋刚罗定贵王津孔令军陈柏迪徐伟昌
Owner GUANGZHOU UNIVERSITY
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