Treatment method for aluminum-containing waste salt

A treatment method and technology of aluminum waste, which is applied in the field of treatment of aluminum-containing waste salt, can solve the problems of no equipment, equipment corrosion, low thermal cracking temperature, etc., and achieve effective treatment and improve efficiency
CN109825713APending Publication Date: 2019-05-31航天国环技术集团有限公司
1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
航天国环技术集团有限公司
Publication Date
2019-05-31

Smart Images

  • Figure 1
    Figure 1
Patent Text Reader

Abstract

The invention discloses a treatment method for aluminum-containing waste salt, and relates to the technical field of sewage treatment. The treatment method comprises the steps that the aluminum-containing waste salt is added into a warm aqueous solution to be fully mixed or dissolved, and a solid-liquid mixed solution is obtained; solid-liquid separation is carried out on the solid-liquid mixed solution, and insoluble solid and an aluminum-containing waste salt solution are obtained; the aluminum-containing waste salt solution is placed in an electrolytic cell for performing electrolysis, different corresponding electrolysis parameters are selected according to different pHs of cathode liquor and anode liquor, pure aluminum ions are electrodeposited on the anode and the cathode, and residual liquid is left; an electrodeposited pure aluminum ion product is recovered; and at least a part of residual liquid is recycled into the aluminum-containing waste salt solution. The treatment methodhas the advantage of high deposition efficiency, and realizes effective treatment of recycling of the aluminum-containing waste salt.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of sewage treatment, in particular to a treatment method for aluminum-containing waste salt. Background technique

[0002] With the development of the economy and the deterioration of the water environment, the environmental protection department has formulated stricter sewage discharge standards and stepped up enforcement efforts. In addition to stricter standards for organic matter, increase the standard for salt discharge in wastewater. For example, the total dissolved solids (TDS) discharge limit in the "Beijing Water Pollutant Comprehensive Discharge Standard (DB11 / 307-2013)" category A standard is 1000 mg / Lift.

[0003] Currently, the existing disposal technologies are:

[0004] 1. The direct thermal combustion method is adopted, that is, the waste salt powder is sprayed into the incinerator, and the organic matter is decomposed and destroyed at a high temperature. However, the melting point of the ...

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