Sustainable and effective degradation of high concentration of aniline by acetylguanidine activated persulfate.

IF 3.8 3区环境科学与生态学 Q3 ENGINEERING, ENVIRONMENTAL

Environmental Geochemistry and Health Pub Date : 2025-10-12 DOI:10.1007/s10653-025-02797-y

Runlai Ji, Wenming Chen, Yanjun Zuo, Yi Xin, Jingjing Zhang, Haibo Wang, Lingce Kong, Yufeng Wu

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引用次数: 0

Abstract

Advanced oxidation processes (AOPs) utilizing sodium persulfate (PDS) have garnered significant attention in recent years. In this study, acetylguanidine (ACG) was discovered to effectively activate PDS for organic contaminants degradation. The system achieved a degradation rate of 98.5% for aniline in wastewater within 50 min and 95.0% for aniline in soil within 3 h. The reaction system showed remarkable resilience, with only a minimal impact from common inorganic ions and organic compounds. The ACG/PDS system displayed robust and efficient performance across a broad pH range of 7.5-12.5. ACG-activated PDS system also demonstrated significantly superior performance in soil remediation compared to humic acid and WQ-8476. EPR and scavenging experiments revealed that ·OH were the dominant active species in the ACG/PDS system. Degradation pathways were proposed based on the degradation products identified through GC-MS analysis. This research provides valuable insights into the practical application of ACG/PDS system for industrial wastewater treatment and soil remediation.

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乙酰胍活化过硫酸盐持续有效降解高浓度苯胺。

近年来，利用过硫酸钠（PDS）的高级氧化工艺（AOPs）引起了人们的广泛关注。本研究发现乙酰胍（ACG）能有效激活PDS降解有机污染物。该体系对废水中苯胺的降解率在50 min内达到98.5%，对土壤中苯胺的降解率在3 h内达到95.0%。该反应体系具有显著的弹性，对普通无机离子和有机化合物的影响很小。ACG/PDS系统在7.5-12.5的广泛pH范围内表现出稳健高效的性能。与腐植酸和WQ-8476相比，acg活化的PDS系统在土壤修复方面也表现出显著的优势。EPR和清除实验表明，·OH是ACG/PDS系统的优势活性物质。基于GC-MS分析鉴定的降解产物，提出了降解途径。本研究为ACG/PDS系统在工业废水处理和土壤修复中的实际应用提供了有价值的见解。

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来源期刊

Environmental Geochemistry and Health 环境科学-工程：环境

CiteScore

8.00

自引率

4.80%

发文量

279

审稿时长

4.2 months

期刊介绍： Environmental Geochemistry and Health publishes original research papers and review papers across the broad field of environmental geochemistry. Environmental geochemistry and health establishes and explains links between the natural or disturbed chemical composition of the earth’s surface and the health of plants, animals and people. Beneficial elements regulate or promote enzymatic and hormonal activity whereas other elements may be toxic. Bedrock geochemistry controls the composition of soil and hence that of water and vegetation. Environmental issues, such as pollution, arising from the extraction and use of mineral resources, are discussed. The effects of contaminants introduced into the earth’s geochemical systems are examined. Geochemical surveys of soil, water and plants show how major and trace elements are distributed geographically. Associated epidemiological studies reveal the possibility of causal links between the natural or disturbed geochemical environment and disease. Experimental research illuminates the nature or consequences of natural or disturbed geochemical processes. The journal particularly welcomes novel research linking environmental geochemistry and health issues on such topics as: heavy metals (including mercury), persistent organic pollutants (POPs), and mixed chemicals emitted through human activities, such as uncontrolled recycling of electronic-waste; waste recycling; surface-atmospheric interaction processes (natural and anthropogenic emissions, vertical transport, deposition, and physical-chemical interaction) of gases and aerosols; phytoremediation/restoration of contaminated sites; food contamination and safety; environmental effects of medicines; effects and toxicity of mixed pollutants; speciation of heavy metals/metalloids; effects of mining; disturbed geochemistry from human behavior, natural or man-made hazards; particle and nanoparticle toxicology; risk and the vulnerability of populations, etc.