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Method for adsorbing mercury ions in waste water by means of charcoal particles made from poplar branches

A technology of carbon particles and carbonized particles, which is applied in the direction of adsorption of water/sewage treatment, chemical instruments and methods, water pollutants, etc., can solve the problems of expensive synthetic polymers and poor adsorption effects, and achieve increased roughness, Small secondary pollution and large specific surface area

Inactive Publication Date: 2015-03-25
QINGDAO AGRI UNIV
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Problems solved by technology

This method overcomes the defects of poor adsorption effect of natural adsorbents and the high price of synthetic polymers, and provides an efficient and low-cost method for treating mercury-containing wastewater

Method used

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  • Method for adsorbing mercury ions in waste water by means of charcoal particles made from poplar branches
  • Method for adsorbing mercury ions in waste water by means of charcoal particles made from poplar branches
  • Method for adsorbing mercury ions in waste water by means of charcoal particles made from poplar branches

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0038] According to one aspect of the present invention, there is provided a method for preparing carbon particles from poplar branches to adsorb mercury ions in wastewater, which includes the following steps.

[0039] In the first step, the poplar branches are sent to an oven and dried at 70°C-80°C, then sent to a pulverizer for crushing, and the poplar branch powder and magnesium sulfate powder passed through a 60-mesh ...

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Abstract

A method for adsorbing mercury ions in waste water by means of charcoal particles made from poplar branches comprises the steps of obtaining fourth carbonized particles through four steps; regulating the PH value of waste water containing mercury to 8, adding 50g poly-tert-butylphenoldisulfide, ferrous sulfide and sodium hydrogen sulfate to each liter of waste water containing mercury according to a mass ratio of 1:2:4, stirring the mixture for 1h, then regulating the PH value of the waste water containing mercury to 6.5, adding 50g sodium alcohol ether sulphate and sodium hypochlorite to each liter of waste water containing mercury according to a mass ratio of 1:4, stirring the mixture for 2h, conducting filtration, then regulating the PH value of the waste water containing mercury to 9-12, adding 50g fourth carbonized particles to each liter of processed waste water containing mercury, and stirring the mixture for 8h at the speed of 120rpm.

Description

technical field [0001] The invention belongs to the technical field of mercury-containing wastewater purification treatment, and in particular relates to a method for preparing carbon particles through poplar branches to absorb mercury ions in wastewater. Background technique [0002] Existing mercury and its compounds (mainly methylmercury) are highly toxic global pollutants. During the peak period of mercury use in the 1960s and 1970s, about 92,000 tons of mercury products were produced globally, with an average annual output of Nearly 8000 tons. The biological toxicity of mercury is very strong. In recent years, the mercury pollution and its compounds produced by the widespread use of mercury have brought more and more harm to the human living environment and human health. Water-soluble inorganic mercury compounds are easily absorbed by the intestinal tract, such as mercuric chloride (mercuric dichloride), which is highly toxic, and inorganic mercury generates methylmerc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F1/28C02F1/62B01J20/20B01J20/30
CPCB01J20/0251B01J20/0288B01J20/20B01J20/22B01J2220/46B01J2220/4825C02F1/001C02F1/281C02F1/283C02F1/285C02F1/66C02F9/00C02F2101/20C02F2301/08
Inventor 张磊
Owner QINGDAO AGRI UNIV
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