建筑垃圾作为去化生物过器的填充物,用于废水中的酸盐利用:特征,性能,微生物群落和无土壤培养
Yinzhou Bao1, Lijing Bao1, Nan Jiang2
1College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China.
Bioresource technology
|September 22, 2024
概括
建筑垃圾有效地处理废水,去除97%的酸盐-. 这种重新利用的废物也显示出植物种植的潜力,为资源管理提供了一个环保的解决方案.
科学领域:
- 环境工程 环境工程
- 材料科学 材料科学 材料科学
- 微生物学 微生物学
背景情况:
- 建筑垃圾 (CW) 由于土地占用和资源枯竭,造成了重大环境挑战.
- 污水处理厂产生二次废水,需要有效和可持续的处理方法.
研究的目的:
- 调查使用建筑垃圾作为去化生物过器 (DNBF-CW) 的填充材料.
- 评估DNBF-CW在处理二次废水废水中的性能和潜在机制.
- 探索使用后建筑垃圾作为无土壤种植基材的潜力.
主要方法:
- 建筑垃圾被利用来制造脱生物过器 (DNBF-CW).
- 分析了水质参数 (NO3-N,COD),生物质,物理化学特性,微生物群落和细胞外聚合物质.
- 进行了蛋白质二次结构分析.
- 使用后使用CW作为基板来评估发芽率.
主要成果:
- DNBF-CW实现了高的去除效率:97%的NO3-N和70%的COD.
- 在生物过器中观察到蛋白质二次结构的显著变化 (增加β-sheet,减少随机卷曲).
- 使用后的CW提高了42 ± 7%的植物发芽率.
- 对微生物群体的分析显示, Pseudomonas (37%) 占主导地位,这是由于治疗效率的提高.
结论:
- 建筑垃圾是开发高效的脱生物过器的可行和环保材料.
- 重新利用的建筑垃圾提供了可持续的二次应用,作为无土壤的种植基材.
- 本研究提出了一种新的多功能方法,用于废物利用和环境修复.
相关概念视频
Bioremediation
18.2K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.2K
Overview of Nitrogen Metabolism
7.9K
Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of ammonia, ammonium ions, nitrate, nitrite, or nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
7.9K
The Nitrogen Cycle
51.8K
Nitrogen atoms, present in all proteins and DNA, are recycled between abiotic and biotic components of the ecosystem. However, the primary form of nitrogen on Earth is nitrogen gas, which cannot be used by most animals and plants. Thus, nitrogen gas must first be converted into a usable form by nitrogen-fixing bacteria before it can be cycled through other living organisms. The use of nitrogen-containing fertilizers and animal waste products in human agriculture has greatly influenced the...
51.8K
Additives and Fillers in Concrete
91
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...
91


