模拟的织废水处理和生物质生产通过一个集成的臭氧化和微藻工艺:优化使用响应表面方法
Mairely Alfonso Almaguer1, Yordanka Reyes Cruz2, Roymel Rodríguez Carpio2
1Escola de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil. mairelyaa@gmail.com.
Environmental science and pollution research international
|September 24, 2025
概括
这项研究将臭氧化与微藻种植相结合,以有效地处理织废水. 综合工艺有效地去除污染物并产生有价值的生物质,为织废水处理提供了具有成本效益的解决方案.
科学领域:
- 环境生物技术 环境生物技术
- 水处理技术水处理技术
- 藻类生物修复 藻类生物修复
背景情况:
- 织废水由于持久的污染物,造成了重大的环境挑战.
- 臭氧化是有效但昂贵的;将其与微藻种植相结合可以提高效率和可持续性.
- 像Chlorella sorokiniana这样的微藻可以利用经过处理的废水组成部分进行生物质生产.
研究的目的:
- 调查模拟织废水处理的综合臭氧化和微藻 (Chlorella sorokiniana) 工艺.
- 优化关键的工艺参数,包括臭氧化时间 (OT),微藻气化率 (MA) 和臭氧化废水比例 (PE).
- 为了最大限度地提高生物质的生产,同时确保有效的污染物去除,以满足排放标准.
主要方法:
- 利用中央复合设计 (CCD) 和响应表面方法 (RSM) 进行流程优化.
- 评估了OT,MA和PE对污染物 (氨,颜色,) 清除和生物质生产的影响.
- 在受控实验条件下使用模拟的织废水.
主要成果:
- 实现了超过96%的氨去除和74%的色彩去除.
- 观察到的去除率在57%至96%之间.
- 确定了最佳条件:19.30分钟OT,3L·min-1MA和100%PE,产生超过94%的色彩和去除和高生物质生产率 (3.18 × 10−2 g·L−1·day−1).
结论:
- 综合臭氧化微藻工艺是织废水处理的高效策略.
- 优化的条件可以同时去除污染物和产生大量生物质.
- 这种方法为管理织废水提供了可持续和成本效益的解决方案.
更多相关视频
相关概念视频
00:46Bioremediation
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.
01:26Microbial Bioremediation of Hydrocarbons
Bioremediation is an environmentally sustainable process that employs living organisms—primarily microorganisms—to degrade or neutralize pollutants from contaminated environments. In oil spills and hydrocarbon pollution, bioremediation involves the use of hydrocarbon-degrading bacteria to transform toxic compounds into less harmful substances. This approach leverages natural microbial metabolic processes and is considered both cost-effective and ecologically favorable compared to physical or...
01:29Bioreactor Design and Operational System
Bioreactors are engineered vessels designed to cultivate microorganisms under controlled conditions for industrial bioprocessing. They maintain sterility and allow precise regulation of pH, temperature, oxygen, and nutrient levels to optimize microbial growth and metabolite production. Bioreactors range from small laboratory units of 1 liter to industrial systems holding up to 500,000 liters, though only about 75% of their volume is actively used for fermentation. The remaining headspace...
01:18Bioreactor Controls-II
In aerobic fermentations, oxygen is vital for microbial growth and metabolite production. Since air comprises only about 20% oxygen and the gas is poorly soluble in water—just 9 ppm at 20°C—supplying sufficient oxygen becomes a critical challenge, especially in high-demand processes like yeast growth or citric acid production. Even a fully saturated broth may offer only a few seconds of oxygen availability.To address this, sterile or scrubbed air is introduced into the fermentor via a sparger...
01:27Upstream Processing
Upstream processing represents a critical phase in biomanufacturing, wherein biological systems such as microorganisms, mammalian cells, or insect cells are cultivated to produce therapeutic proteins, vaccines, enzymes, or other biologically derived products. This phase encompasses all steps from the selection and genetic manipulation of the production organism to the cultivation of cells in bioreactors under tightly controlled environmental conditions.Host Selection and Genetic OptimizationThe...
01:25Biofuels
The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...