Glyphosate production wastewater treatment process and glyphosate production wastewater treatment equipment

Abstract

The invention discloses a glyphosate production wastewater treatment process, which comprises: pre-heating sodium chloride-containing glyphosate production wastewater, carrying out evaporating concentrating, carrying out concentrating liquid circulation, and recovering a sodium salt product through sodium chloride crystallization. According to the present invention, the sodium chloride crystal isprecipitated from wastewater through high temperature treatment, such that the recovery of sodium chloride from glyphosate production wastewater is achieved, the industrial grade sodium chloride product is obtained, the generation of solid waste or hazardous waste is reduced, the environment pollution is reduced, the glyphosate production wastewater is subjected to resource treatment, the processhas characteristics of energy saving and emission reducing, and meets the sustainable development strategies, the industry cannot generate emissions causing water pollution, and the technical effect of zero pollution liquid discharge resource recovery is achieved. The invention further discloses equipment for the process, wherein the equipment has advantages of low energy consumption, high automation degree and low operating cost, meets the requirements of sustainable development, and can be widely used in actual industrial production processes.

Description

technical field [0001] The invention belongs to the technical field of industrial wastewater treatment, and in particular relates to a treatment process and equipment for glyphosate production wastewater. Background technique [0002] Wastewater is the general term for the water discharged during people's activities and runoff rainwater, including domestic sewage, industrial wastewater, and rainwater and other useless water that flows into the drainpipe. It is one of the three major public hazards in nature. Among them, industrial wastewater is wastewater and waste liquid produced in industrial production, which contains industrial production materials, intermediate products, by-products and pollutants generated in the production process lost with water. With the rapid development of industry, the types and types of wastewater The number is increasing rapidly, and the pollution of water bodies is becoming more and more extensive and serious, threatening human health and safe...

AI Technical Summary

Problems solved by technology

[0004] Glyphosate is a broad-spectrum biological herbicide. It is generally produced through the IDAN process. This process has problems such as large wastewater discharge, complex components, and high acidity. Glyphosate production wastewater contains a large amount of sodium chloride and a certain amount of organic phosphorus. Reaction by-products, most of the processes commonly used by enterprises in the industry currently recover most of the water and obtain crystallized salt. However, while obtaining crystallized salt, the waste liquid treatment is not thorough, and there is still a large amount of separated liquid that needs to be discharged. However, the discharge of waste liquid will still cause water pollution. In addition, the energy consumption of the treatment process is high. These problems plague the enterprise and seriously affect the project process of the enterprise. The zero liquid discharge of high-salt wastewater is an inevitable trend of high-salt wastewater treatment

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