来自石油钻井切割残留物和飞灰的泡陶:基本特性,风险评估和应用
1School of Electronics and Internet of Things, Chongqing Polytechnic University of Electronic Technology, Chongqing, 401331, China. xiongdeming2004@126.com.
Environmental geochemistry and health
|March 17, 2026
概括
危险的以石油为基础的钻井切片残留物和飞灰被转化为有价值的泡陶石. 这种可持续的方法将工业废物回收成高强度,环保的材料.
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:
- 基于石油的钻井切片残留物 (OBDCR) 和飞 (FA) 作为危险的工业废物,带来了重大处置挑战.
- 安全和具有成本效益的处置方法对于环境保护和资源回收至关重要.
研究的目的:
- 开发一种用于将OBDCR和FA转化为增值泡陶岩的新方法.
- 为了优化合成参数的轻量,高强度,和环境稳定的陶.
- 评估材料的性能和环境安全.
主要方法:
- 采用OBDCR和FA作为主要原料,作为流动剂.
- 采用单变体实验设计来研究烧温度,持续时间和发泡剂含量.
- 陶石的特点是多孔性,吸水性,压力强度,抗酸/性,以及重金属出.
主要成果:
- 在最佳条件下 (850°C,1小时,6%泡剂,35:35:30 OBDCR:FA:Borax) 产生了泡陶石,其孔隙度为65%,吸水率为14.9%,压力强度为4.02 MPa.
- 达到了>99%的酸/抗性和重金属漏,远低于中国国家标准.
- 试点规模的测试证实了可行性和经济潜力.
结论:
- 成功地将危险工业废物 (OBDCR和FA) 转化为高性能泡陶.
- 开发的材料为废物回收,资源回收和环境保护提供了可持续的解决方案.
- 为工业固体废物利用提供了一个高效,低风险的途径.
更多相关视频
06:27Sandy Soil Improvement through Microbially Induced Calcite Precipitation MICP by Immersion
Published on: September 12, 2019
10.2K
09:39Production and Testing of Moisture Behavior and Thermal Properties of Rapeseed Straw and Ganoderma resinaceum Mycelium Bio-Composites
Published on: September 5, 2025
808
相关概念视频
Pozzolans
679
Pozzolans are siliceous or aluminous materials blended with Portland cement. They interact with the calcium hydroxide produced during the hydration of Portland cement and contribute to improved strength and durability of concrete. The pozzolanic activity, a measure of a pozzolan's effectiveness, is typically assessed using the strength activity index, as defined in ASTM C 618-93, which calculates the ratio of the compressive strength of cement mixtures with and without pozzolan.
Fly ash is...
Fly ash is...
679
Additives and Fillers in Concrete
423
Additives and fillers are integral to enhancing the properties of concrete. Pozzolans and blast-furnace slag are additives or admixtures due to their reactions with calcium hydroxide released during cement hydration. Fillers, which are finely ground and similar in fineness to Portland cement, improve concrete attributes such as workability density, and reduce capillary bleeding or cracking. Some fillers possess hydraulic properties or participate in benign reactions within the cement paste.
The...
The...
423
Fiber Reinforced Concrete
504
Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
504
Water Cement Ratio
1.4K
The water-cement ratio is pivotal in defining concrete's quality. This ratio, a balance between the weight of water and cement in the mix, shapes the concrete's strength, durability, and resistance to environmental factors. As identified by Abrams’ law, less water in the mix equates to stronger concrete. However, water is essential not only for the chemical process of hydration but also for the concrete's workability and compaction. While hydration chemically binds water and...
1.4K
Porosity in Cement Paste
533
The porosity of concrete is a measure of the void spaces within its structure. These spaces impact its strength and durability significantly. When water and cement interact, a chemical reaction called hydration creates a semi-solid paste. This paste includes combined water, making up approximately 23% of the cement's dry mass, and gel water, which fills minuscule voids known as gel pores, accounting for about 28% of the cement gel volume.
The balance of water to cement in the mix is...
The balance of water to cement in the mix is...
533
Types of Cement II
519
Portland blast-furnace cement is made by blending Portland cement clinker with granulated blast-furnace slag, which accounts for 25 to 65 percent of the cement's weight. Despite its similarities to ordinary Portland (Type I) cement in terms of fineness and setting times, its early strength is lower, though it achieves comparable strength later on. It's particularly suited for mass concrete structures and marine environments due to its lower heat of hydration and superior sulfate...
519
