Dithizone grafted chelating gel, preparation method thereof and method for treating mercury-containing wastewater

A dithizone, chelating technology, applied in water/sewage treatment, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve the problem of unsatisfactory adsorption selectivity, and achieve enhanced adsorption selectivity and The effect of adsorption efficiency, efficient removal, and easy operation
CN103801271AInactive Publication Date: 2014-05-21CHANGAN UNIV
0 Cites 6 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHANGAN UNIV
Publication Date
2014-05-21
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses dithizone grafted chelating gel which is prepared from the following raw materials in parts by weight: 1.0-2.0 parts of polyacrylamide gel, 2.0-3.5 parts of formaldehyde, 0.1-0.2 part of dithizone solution and 94.5-96.8 parts of distilled water. The method for preparing the dithizone grafted chelating gel comprises the following steps: adding the polyacrylamide gel in a formula amount into the distilled water with a formula amount, so that the polyacrylamide gel is dissolved to obtain a solution, and regulating the pH of the solution to be 9-11; adding the formaldehyde with a formula amount into the solution, dripping the dithizone solution with a formula amount into a bottle in a drip-by-drip mode, reacting at the temperature of 24-36 DEG C for 120-180 minutes, separating a product, and drying, so as to obtain the dithizone grafted chelating gel. The method is simple and feasible, and the prepared dithizone grafted chelating gel has the high adsorption property on heavy metal pollution ions and has a rapid high-efficiency mercury removal effect on the heavy metal wastewater.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of environmental protection functional materials for environmental engineering, and specifically relates to a dithizone grafted chelating gel, a preparation method and a method for treating mercury-containing wastewater, which can also be used for the treatment of other industrial wastewater containing heavy metals . Background technique

[0002] With the increasing degree and scope of heavy metal pollution in water in China, the harmless and efficient treatment technology of heavy metal polluted water has become a hot research and exploration direction. At present, the treatment methods of mercury-containing wastewater mainly include biological method, precipitation method, adsorption method and so on. The microorganisms used in the biological method are easily poisoned, and the treatment capacity needs to be improved; in practical applications, the precipitation method is widely used because of its simple...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More