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Electrochemical method for removing trivalent Sb

An electrochemical and electrode technology, which is applied in the field of removing trivalent Sb, can solve the problems of low efficiency and long time consumption, and achieve the effect of flexible operation, efficient removal, and not easy to secondary pollution

Pending Publication Date: 2019-08-30
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims to solve the technical problems that the existing method for removing trivalent Sb pollutants in water takes a long time and has low efficiency, and provides an electrochemical method for removing trivalent Sb

Method used

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  • Electrochemical method for removing trivalent Sb
  • Electrochemical method for removing trivalent Sb
  • Electrochemical method for removing trivalent Sb

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specific Embodiment approach 1

[0021] Specific embodiment one: this embodiment is an electrochemical method for removing trivalent Sb, specifically carried out according to the following steps:

[0022] 1. In the electrochemical workstation, set the Pt electrode as the counter electrode, the carbon cloth as the working electrode, and the Ag / AgCl electrode as the reference electrode;

[0023] 2. Pass the water to be treated containing trivalent Sb into the electrolytic cell of the electrochemical workstation, adjust the pH of the solution in the electrolytic cell to 3~10, set the voltage of the working electrode to -1.3V~-1.7V, and perform electrochemical treatment The time is 60 minutes to 65 minutes, that is, the removal of trivalent Sb is completed.

specific Embodiment approach 2

[0024] Embodiment 2: This embodiment differs from Embodiment 1 in that the model of the electrochemical workstation described in step 1 is CHI760E. Others are the same as the first embodiment.

specific Embodiment approach 3

[0025] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the carbon cloth described in step 1 is the carbon cloth obtained after HCP331N hard conductive hydrophilic carbon cloth is processed. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses an electrochemical method for removing trivalent Sb, relates to a method for removing trivalent Sb, and aims to solve the technical problem that the existing method for removing trivalent Sb pollutants in water takes a long time and is inefficient. The method comprises the following steps: 1, in an electrochemical workstation, arranging a Pt electrode as a counter electrode, carbon cloth as a working electrode, and an Ag / AgCl electrode as a reference electrode; 2, introducing to-be-treated water containing the trivalent Sb into an electrolytic cell of the electrochemical workstation, and performing electrochemical treatment to complete the removal of the trivalent Sb. By simply processing the carbon cloth, rapid and efficient removal of the trivalent Sb is realizedunder the circumstance of impressed voltage, and great significance for the removal and recovery of the trivalent Sb as a water pollutant is achieved.

Description

technical field [0001] The present invention relates to a method for removing trivalent Sb. Background technique [0002] Antimony (Sb) is widely used in industrial products. Antimony and its compounds are used in the manufacture of brake pads, semiconductor components and battery grids, as well as in pigments, bearings or power transmission equipment, and as an additive in the manufacture of glassware and ceramics. Antimony and its compounds are also an effective ingredient in the treatment of kala-azar, as well as one of the main components of ammunition. For example Sb 2 o 3 (It is a potential carcinogen), which acts as a catalyst in the process of making polyethylene phthalate polymer (PET). Most of our daily drinking beverages or some mineral water are stored in PET bottles, and some studies have pointed out that the longer the storage time, the more antimony content will be, or even exceed the standard. Antimony and antimony compounds can also be used as flame ret...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C25C1/22C02F101/20
CPCC02F1/461C02F1/4676C02F2001/46133C02F2001/46152C02F2101/20C02F2201/46135C02F2201/4615C02F2209/06C25C1/22Y02P10/20
Inventor 杨利明易根平刘鹏罗旭彪罗胜联刘廷玺
Owner NANCHANG HANGKONG UNIVERSITY
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