Resource processing method and device for preparing industrial salt from high-concentration and high-salt chemical wastewater

A technology for chemical wastewater and high-salt wastewater is applied in the field of resource treatment of industrial salt extracted from high-salt and high-concentration chemical wastewater.

Inactive Publication Date: 2018-02-02
昌邑市瑞海生物科技有限公司
View PDF7 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved in the present invention is to address the characteristics of high concentration and high salt chemical wastewater treatment with high pollutant concentration, complex components, and high salt that cannot be biochemically treated. A combination of processes, removing or destroyi

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Resource processing method and device for preparing industrial salt from high-concentration and high-salt chemical wastewater

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Embodiment 1, a resource treatment method for preparing industrial salt from high-concentration and high-salt chemical wastewater, including the following steps:

[0027] 1. Homogenization step: For each stock of high-concentration and high-salt wastewater in the chemical production process, first place it in a high-salt water buffer tank for homogenization;

[0028] 2. Neutralization step: transfer the high-concentration and high-salt wastewater to the neutralization tank in batches and adjust the pH to 4~5 with hydrochloric acid (lye);

[0029] 3. Three-phase catalytic oxidation step: the high-concentration and high-salt wastewater after the neutralization step continuously enters the catalytic oxidation tower, the catalytic oxidation tower is loaded with surface active catalysts, the bottom of the tower is continuously fed with compressed air, and the top of the tower is continuously added with high-efficiency oxidants to neutralize The organic matter, oxygen and oxidant mo...

Example Embodiment

[0036] Embodiment 2, a resource treatment device for preparing industrial salt from high-concentration and high-salt chemical wastewater, including a high-salt water buffer tank, the high-salt water buffer tank is connected with a neutralization kettle, and the neutralization kettle is connected with a catalytic oxidation tower for catalytic oxidation The tower has a material inlet and a material outlet. The bottom of the catalytic oxidation tower is equipped with an air inlet, the top of the catalytic oxidation tower is equipped with a liquid inlet, and the liquid outlet of the neutralization kettle is connected to the catalytic oxidation tower with a material inlet for catalytic oxidation The material outlet of the tower is connected with a flocculation sedimentation tank, a flocculation sedimentation tank is connected to an intermediate buffer tank through a filter device, the outlet of the intermediate buffer tank is connected with an Ⅰ effect evaporator, and an Ⅱ effect evap...

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

PUM

No PUM Login to view more

Abstract

The invention discloses a resource processing method and device for preparing an industrial salt from high-concentration and high-salt chemical wastewater. The resource processing methodcomprises thefollowing steps ofa homogenization step, a neutralization step, a three-phase catalytic oxidation step, a flocculation and sedimentation step, a double-effect evaporation and concentration step and acentrifugal filtration step. The resource processing method and device adopt the above scheme to remove or destroy organic substances in the waste water, recover an inorganic salt tobe refinedinto theindustrial salt and finally achieve the resource utilization of the high-concentration and high-salt waste water.

Description

technical field [0001] The invention relates to the technical field of high-concentration and high-salt chemical wastewater treatment, in particular to a resource treatment method and device for extracting industrial salt from high-salt and high-concentration chemical wastewater. Background technique [0002] The treatment of high-salt and high-concentration chemical wastewater has always been a difficult point in the field of wastewater treatment technology. With the continuous deepening of environmental protection management, the economical and rational comprehensive treatment of high-salt and high-concentration wastewater needs to be solved urgently. High-salt and high-concentration chemical wastewater is difficult to biochemically treat. At present, the economically feasible treatment method is evaporation and crystallization to achieve zero discharge, but the waste salt generated in this way needs to be managed as solid waste, and the pollutants in the wastewater have no...

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

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C02F9/10C01D3/06
CPCC01D3/06C02F1/001C02F1/04C02F1/38C02F1/52C02F1/66C02F1/722C02F1/725C02F9/00C02F2001/5218C02F2301/08
Inventor 李雷召丛日祥刘鑫胡俊卿
Owner 昌邑市瑞海生物科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products