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Method for restabilizing heavy metal adsorption material and photoreaction device thereof

A technology for adsorbing materials and heavy metals, applied in chemical instruments and methods, adsorbed water/sewage treatment, other chemical processes, etc., can solve problems such as low yield and achieve the effect of improving stability and promoting re-fixation

Inactive Publication Date: 2020-05-22
NANJING KESHENG ENVIRONMENTAL PROTECTION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the removal of heavy metals in water by adding iron oxides such as jarosite, Shi's minerals, etc. to wastewater has little effect

Method used

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  • Method for restabilizing heavy metal adsorption material and photoreaction device thereof
  • Method for restabilizing heavy metal adsorption material and photoreaction device thereof
  • Method for restabilizing heavy metal adsorption material and photoreaction device thereof

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Embodiment Construction

[0044] Below in conjunction with specific embodiment, further illustrate the present invention. These examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "equipped with" and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or Integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

[0045] Now in conjunction with the accompanying drawings, the structural features of the present invention will be described in detail. ...

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Abstract

The invention discloses a method for restabilizing a heavy metal adsorption material, which comprises: a step of preparing schwertmannite, namely a step of synthesizing iron-based adsorbent schwertmannite SCH by a biological method; a step of preparing the heavy metal adsorption material, namely a step of preparing the heavy metal adsorption material with large loading capacity in an alkaline environment; a step of carrying out a photochemical restabilization reaction, namely a step of selecting a photochemical reaction device, setting related parameters of the photochemical reaction device, dissolving the heavy metal adsorption material into an organic acid solution for reaction under stable illumination intensity, carrying out interval sampling and analysis in the photoreaction process,repeating each step for three times, and drawing an error line. The invention further provides the photoreaction device for restabilizing the heavy metal adsorbing material, refixation of dissolved heavy metal can be promoted through cooperation of organic acid and ultraviolet light, the photoreaction device and the method have practical significance in solving the problem that the As content of underground water exceeds the standard, and improvement of the stability of Schwertmannite loaded with As is particularly important.

Description

technical field [0001] The invention belongs to water treatment technology, is applied in the field of iron-based adsorption materials and heavy metal wastewater treatment process equipment, and is a stabilization scheme for iron-based adsorbents loaded with heavy metals in water bodies, and specifically relates to a re-stabilization method for heavy metal adsorption materials Method and photoreaction device thereof. Background technique [0002] With social progress and industrial development, the discharge of wastewater containing heavy metal ions is increasing year by year. However, the content of constant alkali metals and alkaline earth metals does not exceed the standard, which requires that the corresponding water treatment process has a high selectivity for heavy metal ions. At the same time, the high content of heavy metal ions in wastewater has a significant toxic effect on microorganisms in traditional water treatment processes. Therefore, it is a task facing the...

Claims

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Application Information

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IPC IPC(8): B01J20/02B01J20/30C02F1/28C02F101/20
CPCB01J20/02B01J20/0229B01J20/3085C02F1/281C02F2101/20
Inventor 张健曹惠忠朱辉姚昆钮成超李同旭
Owner NANJING KESHENG ENVIRONMENTAL PROTECTION TECH
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