伸栄化学産業 List of Products and Services

This document presents the features, examples, and technical information regarding the "Advanced Treatment Technology for Zinc-Containing Wastewater" conducted by Shin-Ei Chemical Industry. With the amendment of the law enacted in December 2016, the discharge standard for zinc was strengthened from 5 mg/L to 2 mg/L. Currently, the start date for implementation has been extended for another five years, but early action is required considering environmental impact. Our company has been engaged in the research and development of adsorbents with higher selectivity than conventional ones. We will introduce technologies that efficiently treat low-concentration zinc adsorption based on practical examples. [Features] - Multiple ions are present in the treated wastewater, but low-concentration zinc (10 mg/L) is selectively adsorbed. - Installation only requires the setup of a zinc adsorption tower, without the need for extensive renovation work. - The adsorbent can be repeatedly regenerated and reused. *For more details, please refer to the catalog or feel free to contact us.

In recent years, the situation regarding drainage standards has become increasingly strict, and early responses considering environmental impact are being demanded. Shin-Ei Chemical Industry, which is engaged in the research and development of highly selective adsorbents, offers "Advanced Treatment Technology for Zinc and Fluorine Containing Wastewater." It can be implemented simply by installing an adsorption tower, without the need for extensive renovation work. Currently, we are providing materials that include examples of zinc adsorption treatment. (For more details, please refer to the [Download] section.) [Features] ■ Selectively adsorbs zinc ions and fluoride ions from treated water ■ Installation requires only the setup of the adsorption tower, without the need for extensive renovation work ■ Adsorbents can be repeatedly regenerated and reused *For more details, please refer to the materials. Feel free to contact us with any inquiries.

Due to the anodizing process, aluminum dissolving in the electrolyte becomes aluminum sulfate, which decreases the necessary free sulfuric acid while increasing the aluminum concentration, making it difficult to maintain consistent quality of the anodized finish. Therefore, we would like to introduce a method to keep the concentrations of free sulfuric acid and aluminum constant, in response to the current situation where the applied voltage is increased or part of the bath solution is regularly renewed. By implementing this device, managing the aluminum concentration in the anodizing tank becomes easier, resulting in benefits such as stable quality and reduced new sulfuric acid input. **Benefits of Implementation** - Reduction in wastewater treatment costs, particularly the reduction of caustic soda required for neutralization. - Decreased risk associated with handling strong acids during electrolyte renewal. - In some cases, the electrolyte renewal process may become unnecessary. - Improvement in product quality, workplace environment, and cost reduction can be expected. - It can also be repurposed as a coagulant in the form of aluminum sulfate solution. *For more details, please refer to the PDF document or feel free to contact us.*

Our company manufactures and sells "Anodizing Liquid Lifespan Extension Devices." During the anodizing process, aluminum dissolves into the electrolyte, forming aluminum sulfate, which reduces the necessary free sulfuric acid while increasing the aluminum concentration, making it difficult to maintain consistent anodizing quality. Therefore, we would like to introduce a method to keep the concentrations of free sulfuric acid and aluminum constant, as opposed to the current practice of increasing the applied voltage or regularly renewing part of the bath solution. By implementing this device, managing the aluminum concentration in the anodizing tank becomes easier, resulting in benefits such as quality stabilization and a reduction in the amount of new sulfuric acid introduced. *For more details, please refer to the PDF document or feel free to contact us.*

Our company manufactures and sells "Anodizing Liquid Lifespan Extension Devices." In anodizing processes, aluminum dissolves into the electrolyte, forming aluminum sulfate, which reduces the necessary free sulfuric acid while increasing the aluminum concentration, making it difficult to maintain consistent anodizing quality. Therefore, we would like to introduce a method to keep the concentrations of free sulfuric acid and aluminum constant, in contrast to the current practice of increasing the applied voltage or regularly renewing part of the bath solution. By implementing this device, managing the aluminum concentration in the anodizing tank becomes easier, resulting in benefits such as stable quality and reduced new sulfuric acid input. *For more details, please refer to the PDF document or feel free to contact us.*

Our "Aluminum Separation Device" can extract only "aluminum sulfate" from the bath solution used during surface treatment. As a result, managing the aluminum concentration in the anodizing tank becomes easier, leading to benefits such as stable quality and reduced new sulfuric acid input. Customers who have adopted our device have reported: - Reduced purchasing costs for the bath solution - Decreased industrial waste disposal costs - Reduced labor hours - Significant cost reductions due to the above reasons We also offer the possibility of lending demo units and conducting free tests, so please feel free to contact us if you are interested. 【Benefits of Implementation】 ■ Reduction in wastewater treatment costs, particularly the reduction of caustic soda needed for neutralization ■ Decreased handling risks of strong acids during electrolyte renewal ■ In some cases, the possibility of eliminating electrolyte renewal work ■ Expected improvements in product quality, workplace environment, and cost reduction ■ Can be repurposed as a coagulant in the form of aluminum sulfate solution *For more details, please refer to the PDF document or feel free to contact us.