该【富铁与厌氧浸泡条件下硫元素环境化学行为研究 】是由【wz_198613】上传分享，文档一共【2】页，该文档可以免费在线阅读，需要了解更多关于【富铁与厌氧浸泡条件下硫元素环境化学行为研究 】的内容，可以使用淘豆网的站内搜索功能，选择自己适合的文档，以下文字是截取该文章内的部分文字，如需要获得完整电子版，请下载此文档到您的设备，方便您编辑和打印。富铁与厌氧浸泡条件下硫元素环境化学行为研究 【摘要】 本论文旨在研究富铁及厌氧浸泡条件下硫元素的环境化学行为。通过文献分析、实验验证以及数据分析，得出了一系列结论： 1. 厌氧条件下，硫元素发生还原反应，被转化为硫化物，此过程受到环境pH值、氧化剂与还原剂的存在等多种因素的影响。本文通过pH控制实验，研究了不同pH值下硫元素还原速率及硫化物沉淀种类的变化规律。 2. 富铁条件下，硫元素也发生还原反应，但是富铁的存在使得硫元素还原速率加快，并且产生的硫化物具有一定的稳定性。本文通过加入不同浓度的富铁试剂，研究了富铁浓度对硫元素还原反应速率与产物稳定性的影响。 3. 在一定条件下，厌氧浸泡条件下硫元素还原的速率与富铁条件下类似。但是在实际环境中，由于水体中富铁是有限的，厌氧浸泡条件下比富铁条件下硫元素还原速率慢，且产生的硫化物不太稳定。 本文的研究结果对于科学的理解硫元素的环境化学行为具有重要意义，对于深入探讨厌氧条件下硫元素的产生、转化及去除机制，富铁在水环境中的应用及环境污染治理等方面也有重要意义。 【关键词】硫元素；厌氧条件；富铁；还原反应；硫化物 【Abstract】 This paper aims to study the environmental chemical behavior of sulfur elements under iron-rich and anaerobic soaking conditions. Through literature analysis, experimental verification and data analysis, a series of conclusions were drawn: 1. Under anaerobic conditions, sulfur elements undergo reduction reactions and are converted into sulfides. This process is affected by various factors such as environmental pH, oxidants, and reductants. This paper studies the variation law of sulfur element reduction rate and sulfide precipitation type under different pH values through pH control experiments. 2. Under iron-rich conditions, sulfur elements also undergo reduction reactions, but the presence of iron-rich accelerates the sulfur element reduction rate, and the produced sulfides have certain stability. This paper studies the influence of iron-rich concentration on sulfur element reduction rate and product stability by adding different concentrations of iron-rich reagents. 3. Under certain conditions, the sulfur element reduction rate under anaerobic soaking conditions is similar to that under iron-rich conditions. However, in actual environments, iron-rich in water is limited, and the sulfur element reduction rate is slower under anaerobic soaking conditions than under iron-rich conditions, and the produced sulfides are less stable. The research results of this paper are of great significance for understanding the environmental chemical behavior of sulfur elements scientifically, exploring the mechanisms of sulfur element production, conversion and removal under anaerobic conditions, the application of iron-rich in water environment, environmental pollution control, etc. 【Key words】Sulfur elements; anaerobic conditions; iron-rich; reduction reaction; sulfide.
