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一种低成本的基填充剂的性能评估,用于生物保留细胞

Jiajia Zhou¹, Jiaqing Xiong¹, Yanwei Xu¹

¹Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, PR China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No.13, Xi'an, 710055, China.

Journal of environmental management

|July 2, 2023

概括

用水泥修饰的提供了一个稳定的,低成本的替代填充物用于生物保留细胞,其性能优于传统的沙子. 这种环保材料有效地去除了和等污染物.

科学领域:

环境工程环境工程
材料科学是一种材料科学.
土壤科学土壤科学

背景情况:

传统的生物保留细胞填充剂,如沙子和石,成本高昂,稀缺.
现有的填充剂表现不稳定的性能,需要替代品.
开发可持续且具有成本效益的生物保留材料对于雨水管理至关重要.

研究的目的:

评估水泥改性作为生物保留细胞的可行,低成本的填充剂.
在各种条件下分析水泥改性的物理和化学特性.
为了比较改性的污染物去除效率与传统的砂填充器.

主要方法:

用水泥修饰的 (CM) 制备了不同的固化时间,水泥含量和紧缩度.
分析了物理性质 (损失率,抗擦除指数,密度,特定表面积).
化学性质和污染物吸附 (,氨,酸) 用光谱和吸附试验进行了评估.

主要成果:

具有≥10%水泥,≥28天固化,密度≥1.3g/cm3的水泥改性符合生物防填充剂的要求.
与沙子 (0.791 m2/g) 相比,经过修改的石表现出明显更高的特定表面积 (12.5326.25 m2/g).
材料有效地吸附氨和,CM56在无氧条件下还可以去除酸盐.

结论:

混凝土改性,特别是CM56,是生物保留细胞的稳定,有效和经济高效的替代填充剂.
与沙子相比,修改后的石表现出优越的污染物去除能力.
这种方法减少了对稀缺石材资源的依赖,并为雨水管理提供了可持续的解决方案.

关键词:

生物保留细胞是生物保留细胞.填充剂填充剂填充剂填充剂微生物社区的微生物社区.修改后的丝修改后的丝结构特征结构特征

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