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污泥气化:矿物行为和气化灰的高价值利用

Weiwei Zhang¹, Ruipeng Li², Youqing Wu³

¹School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo, 454003, China; Department of Chemical Engineering for Energy Resources, East China University of Science and Technology, Shanghai, 200237, China.

Journal of environmental management

|March 10, 2025

概括

污水污泥气化灰可以在岩羊毛生产中重复使用. 市政污泥灰比染料污泥灰更有效地改善岩皮羊毛的性能,固化重金属带来最小的漏风险.

科学领域:

材料科学材料科学材料科学
环境工程环境工程
废物管理废物管理

背景情况:

污水污泥处理带来了环境挑战.
污泥气化提供了一种可行的处置方法.
污泥燃气化灰显示出岩石羊毛生产的潜力.

研究的目的:

在气化过程中调查染料和城市污泥的矿物行为.
评估污泥气化灰对岩羊毛原材料性能的影响.
评估污泥气化灰的增值利用潜力.

主要方法:

污泥和灰样本的定性和定量分析.
矿物成分和相变的表征.
评估灰融合温度和液相含量.

主要成果:

染料污泥灰主要含有氧化铁/酸盐;市政污泥灰含有Ca,Mg,Fe,Al酸盐/酸盐.
市政污泥灰有效降低了灰的融合温度,并增加了液相含量.
染色泥灰的添加形成铁,增加Fe化合物;重金属被固化,漏风险较低.

结论:

与染色污泥灰相比,市政污泥气化灰在岩羊毛生产中优越.
污泥气化灰可以安全地用作岩羊毛辅助材料.
这项研究为污泥气化灰化学及其增值应用提供了基础.

关键词:

矿物质的行为罗克羊毛是使用的.这是泥泥.污泥燃气化灰的使用方法增加价值的利用使用.

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