Resource Utilization Treatment of Glyphosate Wastewater

1. Overview

Glyphosate is an effective active chemical ingredient in many widely used herbicides. Glyphosate production wastewater is toxic and harmful, with large discharge and wide pollution. The wastewater contains some difficult to biodegrade organic compounds such as iminodiacetate, chloroacetic acid, triacetamine, and glycine, with high COD concentration and poor biodegradability. The special adsorption material researched by Haipu Company can selectively adsorb and enrich the effective components in glyphosate wastewater, and achieve the recovery and utilization of effective components through desorption process. The treated wastewater can be discharged in compliance with biochemical treatment standards.

2. Haipu customized processing technology

Jiangsu Haipu Functional Materials Co., Ltd. is committed to the research and industrialization of high-performance adsorbents and catalysts. In 2018, it was approved as the Suzhou Adsorption and Catalytic Functional Nanomaterials Engineering Technology Research Center. Through years of independent research and development, it has achieved international leading levels in ion exchange technology and adsorption technology, nano inorganic material hybridization technology, etc., realizing the serialization of adsorption and catalytic products and successfully applying them in the fields of environmental protection and resource recycling. With a series of independently developed high-performance adsorbents and catalysts as the core, combined with self-developed process technology, Haipu has become a professional supplier of green and environmental protection solutions.

The special adsorption material researched by Haipu Company can selectively adsorb glyphosate in wastewater, achieving efficient adsorption and complete desorption of glyphosate. The content of glyphosate in the desorbed wastewater is greatly reduced, and glyphosate is adsorbed and recovered, returning to the production process for resource utilization of wastewater. When using Haipu's adsorption process to treat glyphosate containing wastewater, the wastewater is pre filtered to remove suspended and particulate matter, and then enters the adsorption tower for adsorption. The special adsorption material filled in the adsorption tower can adsorb glyphosate in the wastewater on the surface of the material. After adsorption saturation, a specific desorption agent is used to desorb the adsorption material, allowing it to regenerate. This process is continuously repeated. The process flow of wastewater adsorption treatment is shown in the following figure.

3. Process flowchart

4. Technical advantages

• Efficiently remove substances such as glyphosate and glyphosate from wastewater, with high removal rates. The adsorbed effluent can be treated biochemically to meet standards or according to the needs of the enterprise;

• Recyclable glyphosate and glyphosate from wastewater can improve resource utilization and increase the economic benefits of enterprises;

• Low equipment investment, low operating costs, advanced and reliable technology, and no secondary pollution;

• Modular component form, high degree of automation, and simple operation.

5. Specific cases

A resource utilization process design was carried out for a certain biotechnology enterprise's 500t/d glyphosate containing wastewater to solve the problem of substandard biochemical treatment of the enterprise's wastewater and the inability to recover effective ingredients such as glyphosate. About 10.2t of glyphosate products can be recovered in one day, and 10.68t of glyphosate products can be recovered. Recycling both products for one year can increase the economic benefits of the enterprise by 136.95 million yuan.

Table 1 Adsorption inlet and outlet water data

Figure 1 Adsorbed influent (left image), adsorbed effluent (right image)

Figure 2 Project Site Implementation Diagram