Resource Utilization Treatment Methods for Acetaldehyde and Acetic Acid Wastewater

Overview

During the production of acetaldehyde, excessive oxidation can produce some acetic acid, and the production wastewater contains organic compounds such as acetic acid. Conventional biochemical methods cannot meet the standards for treatment, directly affecting the operation of the acetaldehyde production line in the enterprise. Using the special adsorption material independently developed by Haipu Company to adsorb and treat acetic acid wastewater, the acetic acid in the wastewater is removed in a targeted manner, reducing the COD content of the wastewater. After adsorption treatment, the wastewater can be treated to meet the standard in the biochemical system, ensuring the stable production of the enterprise.

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.

Process flowchart

Technical advantages

1. Reduce the COD of the adsorbed effluent, decrease the pressure of subsequent biochemical treatment, ensure that the wastewater treatment meets the standards, and ensure the sustainable development of the enterprise;

2. Targeted removal of acetic acid, with a particularly high concentration of desorption solution, can be sold as industrial raw materials, increasing the economic benefits of enterprises;

3. The equipment has low operating costs, high degree of automation, and simple operation.

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

Specific cases

A resource utilization process design was carried out for 1000t/d acetic acid wastewater from a certain biochemical industry to solve the problem of substandard biochemical treatment of wastewater in the enterprise. At the same time, the desorption liquid was turned into waste and can be sold as other industrial raw materials without generating secondary pollution, increasing the economic benefits of the enterprise.

Table 1 Adsorption inlet and outlet water data