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Method for removing helium in water by utilizing monosulfate-enhanced manganese sand

A technology of persulfate and potassium monopersulfate, applied in chemical instruments and methods, water pollutants, filtration treatment and other directions, can solve the problems of inconvenient use and operation, easy leakage of oxidants, large consumption of chemicals, etc., and achieve convenient storage. , moderate price, simple and convenient operation

Inactive Publication Date: 2018-05-29
JILIN JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of large consumption of chemicals, high processing cost, easy leakage of oxidant and inconvenient operation in the existing thallium removal technology. Methods

Method used

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  • Method for removing helium in water by utilizing monosulfate-enhanced manganese sand
  • Method for removing helium in water by utilizing monosulfate-enhanced manganese sand

Examples

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specific Embodiment approach 1

[0021] Specific implementation mode 1: A method of using monopersulfate to strengthen manganese sand to remove thallium in water according to this embodiment is realized through the following steps:

[0022] 1. Add monopersulfate (PMS, SO 5 2- ), control the concentration of monopersulfate to be 1-100mg / L;

[0023] 2. The water to be treated containing monopersulfate is introduced into a filter bed equipped with manganese sand, and after filtering, the method for removing thallium in water by strengthening manganese sand with monopersulfate is completed.

[0024] The water to be treated is surface water after coagulation and sedimentation treatment, and the process is shown in figure 1 .

[0025] The principle of a method of using monopersulfate to strengthen manganese sand to remove thallium in water in this embodiment: monopersulfate (PMS, SO 5 2- ) can quickly remove monovalent thallium (Tl) adsorbed on the surface of manganese sand + ) is oxidized to easily remove tr...

specific Embodiment approach 2

[0031] Embodiment 2: This embodiment differs from Embodiment 1 in that: the concentration of monopersulfate in the water to be treated is 2-90 mg / L. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0032] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the concentration of monopersulfate in the water to be treated is 5-80 mg / L. Others are the same as in the first or second embodiment.

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Abstract

The invention provides a method for removing helium in water by utilizing monosulfate-enhanced manganese sand, relates to a water treatment method and solves the problems of large medicament dosage, high treatment cost, easiness in oxidant leakage and inconvenient use and operation in an existing thallium removal technology. The water treatment method provided by the invention comprises the following steps: adding monopersulfate in the to-be-treated water and introducing the water into a filter bed filled with the manganese sand for filtering; the monopersulfate can quickly oxidize monovalentthallium (T1+) absorbed on the surface of the sand into trivalent thallium (T3+), the adsorption capacity of the manganese sand for the thallium trivalent is 5-10 times of that of the monovalent thallium, and the removal of the thallium by the manganese sand is enhanced. The method provided by the invention has the following advantages that the monopersulfate is stable in chemical property, convenient to transport and store and simple to operate, requires no additional equipment, can be subjected to large-scale application in a water plant, can quickly oxidize the monovalent thallium into thetrivalent thallium and is high in thallium removal efficiency; the residual monosulfate as a disinfectant can also perform disinfection treatment on the filtered water and cannot generate toxic and harmful by-products.

Description

technical field [0001] The invention relates to the field of drinking water treatment, in particular to a method for removing thallium in drinking water. Background technique [0002] Thallium is a highly dispersed rare metal element widely used in industries such as chemical industry, electronics, medicine, aerospace, high-energy physics and superconducting materials. At the same time, thallium is an element with strong physiological toxicity. Due to the continuous development and utilization of thallium-containing resources, the ways for thallium to enter the water environment are expanding. Therefore, thallium has become one of the highly toxic heavy metal elements that has attracted more attention in the field of water treatment research. Thallium mainly exists in the positive monovalent form in nature, and its toxicity is greater than that of arsenic. It can enter the human body through the digestive tract, skin contact, and inhalation of floating dust and smoke, leadi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F101/20
CPCC02F9/00C02F1/001C02F1/281C02F1/50C02F1/52C02F2001/007C02F2101/20C02F2301/08
Inventor 庞素艳周丹丹陈雷白莉江进
Owner JILIN JIANZHU UNIVERSITY
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