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在不同的储存条件下从饮用水处理污泥中释放的有机物质的特性:基于活性碳吸附性进行评估

Sri Anggreini¹, Maulana Yusup Rosadi², Toshiro Yamada³

¹Graduate School of Engineering, Gifu University, Gifu, 501-1193, Japan.

|July 31, 2023

概括

回收饮用水处理污泥 (DWTS) 的水影响溶解有机物 (DOM) 的吸附性. 储存条件显著改变DOM特性,非气化污泥释放出更容易吸附的DOM,这对于水处理策略至关重要.

科学领域:

环境科学环境科学
水处理工程水处理工程
有机化学有机化学

背景情况:

来自饮用水处理污泥 (DWTS) 的回收水对饮用水供应提出了挑战.
从DWTS释放的溶解有机物 (DOM) 可以影响水质.
了解DOM特征对于有效的水再利用至关重要.

研究的目的:

调查储存温度和氧气条件对DOM从DWTS释放的影响.
为了评估被活性炭释放的DOM的吸附性.
为了确定影响DOM特征与水处理相关的因素.

主要方法:

在不同温度和氧气条件下储存泥 (空气化与非空气化).
使用溶解有机碳 (DOC) 和UV260吸收率分析释放的DOM.
使用修改的弗洛伊德利希异热模型进行吸附性评估.
使用光刺激-发射矩阵 (EEM) 分析对DOM组件进行表征.

主要成果:

随着储存温度和氧气条件的变化,DOM吸附性发生了显著的变化.
非空气化的条件产生了具有更高吸附能力的DOM (1.41-3.01倍的DOC,1.14-2.28倍的UV260).
类似酸和类似酸的物质显示出比类似蛋白质的物质 (类似氨酸,类似二) 更高的吸附性.

结论:

储存条件极大地影响了DOM从DWTS释放出来的吸附性.
优化储存和处理以向类似蛋白质的物质对于管理回收水的水质至关重要.
活性炭吸附效率取决于污泥储存影响的DOM特性.

关键词:

活性炭是一种活性炭.吸附方式吸附方式吸附方式溶解的有机物质是有机物质.饮用水处理污泥饮用水处理污泥杂物质是一种杂物质.重新利用水的方法

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