氧化涂层的石和生物炭增强了生物沙过器的脱化和水处理
Joshelyn Guimaray1, Katherine Alfredo1, Sarina J Ergas2
1Department of Civil & Environmental Engineering, University of South Florida (USF), 4202 E. Fowler Ave, ENG 030, FL, 33620, Tampa, USA.
Environmental science and pollution research international
|March 18, 2025
概括
氧化涂层石和生物炭显著改善了家庭生物沙器 (BSF) 中的化物去除. 这些改进过器可长时间提供安全的饮用水,性能优于传统的沙子过器.
科学领域:
- 环境科学 环境科学
- 水处理技术 水处理技术
- 材料科学 材料科学 材料科学
背景情况:
- 长期暴露在饮用水中的高化物水平会导致骨和牙化.
- 传统的生物砂过器 (BSF) 的化物吸附能力有限.
- 家庭规模的水净化对公共健康至关重要.
研究的目的:
- 用氧化涂层材料提高BSF中的化物去除效率.
- 为了评估涂层石和生物炭与BSF中的沙子相比的性能.
- 评估增强BSFs的长期有效性和水质参数.
主要方法:
- 基板尺寸的BSF使用未涂层的沙子 (对照),涂层的石和涂层的生物炭来建造.
- 过器使用化物的表面水 (≥5 mg/L) 运行了一年多.
- 监测了化物度,度,便指标细菌,有机物质和pH值.
主要成果:
- 涂层生物炭和涂层石的化物突破时间分别延长到313天和418天,而沙子的时间为49天.
- 改进过器有效地去除了,细菌和有机物质,保持了过率.
- 石显示出较高的化物吸附能力 (1.1 mg/g),但导致pH值较低;用贝进行后处理,pH值得到了修正.
结论:
- 氧化涂层石和生物炭为家庭用水处理提供了卓越的化物去除.
- 增强的BSF为安全饮用水提供了可持续的解决方案,解决了化风险.
- 在使用涂层石时,需要进行后处理以优化水的pH值.
更多相关视频
09:39Physical, Chemical and Biological Characterization of Six Biochars Produced for the Remediation of Contaminated Sites
Published on: November 28, 2014
35.0K
05:52Resource Recycling of Red Soil to Synthesize Fe2O3/FAU-type Zeolite Composite Material for Heavy Metal Removal
Published on: June 2, 2022
2.8K
相关概念视频
01:06Coagulation
256
Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...
256
01:21Pozzolans
92
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...
92