High-efficiency broad-spectrum sterilizing agent as well as preparation method and application thereof

By combining modified titanium dioxide and activated carbon, high-efficiency broad-spectrum sterilizers are prepared, which solves the problems of safety risks and poor stability of existing sewage disinfectants, and achieves efficient killing and long-term antibacterial control of E. coli and Staphylococcus aureus, meeting the environmental protection requirements of sewage treatment.

CN120240471AInactive Publication Date: 2025-07-04TAIAN HONGFU CHEMICAL CO LTD
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Patent Information

Application Number
CN202510396930.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2025-07-04
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing sewage disinfectants such as liquid chlorine, sodium hypochlorite and ozone have problems such as safety risks, poor stability, high equipment costs and low utilization in sewage treatment, which are difficult to meet the increasingly stringent environmental protection requirements and sewage treatment needs.

Method used

A high-efficiency broad-spectrum sterilizer is prepared by combining modified titanium dioxide and modified activated carbon with dispersant. The stability and sterilization effect are improved through modification treatment, including impregnation and modification in hydrochloric acid and mixed salt solution, and then calcination treatment to form modified titanium dioxide and silver ion modified activated carbon supported by silver copper. After mixing, the sterilizer is prepared by ultrasonic dispersion.

Benefits of technology

It has achieved efficient killing of E. coli and Staphylococcus aureus, with a log value of up to 5 and has long-term antibacterial properties of up to 120 days, significantly improving the sterilization effect and antibacterial durability of sewage treatment.

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Abstract

The invention relates to the technical field of sewage treatment, and discloses an efficient broad-spectrum sterilizing agent as well as a preparation method and application thereof. The high-efficiency broad-spectrum sterilizing agent is prepared from the following raw materials in parts by mass: 10 to 20 parts of modified titanium dioxide, 5 to 10 parts of modified activated carbon, 2 to 3 parts of dispersing agent and 50 to 60 parts of water. The efficient broad-spectrum sterilizing agent provided by the invention has the advantages that the killing logarithm value on escherichia coli can reach 5, the killing logarithm value on staphylococcus aureus can reach 5, and a good sterilizing effect is achieved; the antibacterial activity of the efficient broad-spectrum sterilizing agent on escherichia coli can reach 120 days, and the efficient broad-spectrum sterilizing agent has good long-acting antibacterial activity.
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