A method for promoting the degradation of organic wastewater by advanced oxidation under neutral conditions

By using ferrous silicate catalyst and hydroxylamine hydrochloride as promoters in the Fenton oxidation system, the problem of low reaction rate under neutral conditions was solved, achieving efficient oxidative degradation of organic wastewater and breaking the dependence of traditional Fenton oxidation on acidic environments.

CN122403609APending Publication Date: 2026-07-17CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CENT SOUTH UNIV
Filing Date
2026-04-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing Fenton oxidation technology suffers from low reaction rates under neutral conditions, unstable promoter effects, and low catalytic material activity, resulting in insufficient efficiency in treating organic wastewater.

Method used

Ferrous silicate catalyst and hydroxylamine hydrochloride as promoters were used to catalyze the oxidation of organic wastewater by hydrogen peroxide under neutral conditions. The pH value was controlled at 6.5-7.5. After adding ferrous silicate and hydroxylamine hydrochloride, hydrogen peroxide was slowly added to carry out the oxidation reaction.

Benefits of technology

It significantly enhances the Fenton catalytic oxidation effect under neutral conditions, enabling rapid and thorough oxidation and degradation of organic wastewater, reducing the consumption of acid and alkali reagents, and improving catalytic oxidation efficiency.

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Abstract

本发明公开了一种促进有机废水在中性条件下高级氧化降解的方法,该方法是将有机废水调节pH至6.5~7.5后,先加入硅酸亚铁催化材料和盐酸羟胺,再缓慢加入过氧化氢进行氧化反应。该方法使用硅酸亚铁催化材料以及采用盐酸羟胺作为促进剂,能够在中性条件下催化过氧化氢对有机废水的快速、彻底氧化降解,以解决现有类芬顿氧化局限于强酸性环境,而在中性条件下反应速率低、促进剂效果不稳定以及催化材料活性低等技术问题,特别适应用染料废水、选矿废水及其他含难降解有机物水体的降解处理。
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Citation Information

Patent Citations

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  • Method for promoting heterogeneous Fenton-like technology to degrade organic pollutants by utilizing sulfite

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