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在污泥调整过程中,使用石墨烯酸引发的碳酸盐处理来进行三碳素的转化和去除

Jialin Liang¹, Lei Zhang¹, Chengjian Li¹

¹Engineering and Technology Research Center for Agricultural Land Pollution Integrated Prevention and Control of Guangdong Higher Education Institute, College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.

Journal of hazardous materials

|November 11, 2023

概括

本研究引入了一种具有成本效益的甲和碳酸 (CuFeS2 + SPC) 污泥处理方法. 该过程显著减少了四环素化物 (TCC),并改善了污泥脱水,提供了一个环保的替代方案.

科学领域:

环境科学环境科学
水处理处理水的方法
材料科学材料科学材料科学

背景情况:

四环素化物 (TCC) 是污泥中的持久污染物,对环境构成风险.
污泥排水对于有效的废物管理至关重要,但有机物往往会阻碍这种工作.
现有的先进的氧化工艺可能昂贵且不太环保.

研究的目的:

开发一种简单,环保的TCC清除和污泥脱水方法.
为了研究一种新的甲和碳酸 (CuFeS2 + SPC) 结合方法的疗效.
阐明TCC降解和污泥调节背后的机制.

主要方法:

采用了使用石灰 (CuFeS2) 和碳酸 (SPC) 的组合方法.
优化CuFeS2剂量,SPC剂量,初始pH值和反应持续时间.
分析TCC减少,污泥脱水效率,并确定TCC转化产品.

主要成果:

在最佳条件下 (600 mg/g TS CuFeS2,12.5 mg/g TS SPC,pH 4.0,40分钟) 实现了53.9%的TCC减少和36.9%的水含量减少.
CuFeS2 + SPC 方法比基于铁的 AOPs 更具成本效益和环保性.
基基 (•OH) 是主要的氧化剂,由超氧化基 (O2•−) 和单氧 (1O2) 支持,通过破坏细胞外聚合物物质来降解TCC.

结论:

CuFeS2 + SPC 结合的方法有效地去除了 TCC,并增强了污泥脱水.
激素氧化机制在TCC转化和结合点破坏中发挥着关键作用.
这项研究为污泥调节中的TCC去除和转化提供了有价值的见解.

关键词:

卡尔科皮里特引发的碳酸盐.机理机制机理机制泥的脱水能力泥的脱水能力变化转化转化转化三碳化合物三碳化合物

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