Method for quickly removing refractory organic matter in wastewater through activation of persulfate by hollow cobalt-rich bimetallic sulfide

A persulfate and bimetallic technology, applied in the field of environmental pollution control, can solve the problems of large amount of catalyst and oxidant, high treatment cost, long action time, etc., to achieve improved chemical kinetics effect, stable material structure, and fast reaction speed Effect
CN109092329AInactive Publication Date: 2018-12-28NANJING UNIV
4 Cites 7 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANJING UNIV
Publication Date
2018-12-28
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 belongs to the field of environmental pollution treatment and particularly relates to a method for quickly removing refractory organic matter in wastewater through activation of persulfate by hollow cobalt-rich bimetallic sulfide. MOF formed by dimethylimidazole and bimetallic nitrate is adopted as a precursor, then, the bimetallic sulfide is prepared through a solvothermal vulcanization reaction, and finally, a stable hollow crystal structure is formed through calcination. Under the wide pH condition, the prepared hollow cobalt-rich bimetallic sulfide is added to wastewater containing the refractory organic matter and can activate persulfate to quickly produce free sulfate radicals, and the refractory organic matter can be efficiently removed within 10 min. Compared with theprior art, the method has the advantages that the hollow cobalt-rich bimetallic sulfide is convenient to prepare, stable in structure, low in dosage, high in efficiency and applicable to wide pH ranges and has superior economic and technological advantages.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of environmental pollution control, and relates to a technology for advanced oxidation treatment of refractory organic matter in wastewater, in particular to a preparation method and application of a hollow cobalt-rich bimetallic sulfide. Background technique

[0002] Refractory organic matter is difficult to decompose through biological action under natural conditions, and they are often gradually concentrated through the food chain, which easily causes great harm to the environment and ecology. Therefore, it is of great significance to use efficient and economical methods to control the pollution of refractory organic compounds in the water environment.

[0003] In recent years, advanced oxidation technology based on sulfate radical has been widely used in the treatment of refractory organic matter. Due to the high redox potential of the sulfate radical (E 0 =2.5~3.1V), and has a longer half-life and higher stabil...

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