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在无氧反应器中进行亚佐染料无氧处理,加上PVA/Fe/粉凝珠
Thu Huong Nguyen1, Tien Thong Vo2, Takahiro Watari3
1Department of Science of Technology Innovation, Nagaoka University of Technology, Niigata 940-2188, Japan.
Bioresource technology
|July 17, 2024
概括
新型PVA/Fe/粉凝珠通过支持染料降解细菌来增强废水处理. 这些生物载体提高了系统的稳定性和在去除染料的效率.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 化学工程是化学工程的重要组成部分.
背景情况:
- 亚染料在工业中广泛使用,由于其持久性和毒性,这给环境带来了挑战.
- 传统的废水处理方法往往难以有效地去除染料.
- 开发有效的生物载体对于增强微生物处理过程至关重要.
研究的目的:
- 制造和评估一种新的聚乙醇 (PVA) /磁铁 (Fe) /粉凝珠作为亚染料废水无氧处理的生物载体.
- 为了优化PVA/Fe/粉凝珠的组成,以提高物理强度和处理性能.
- 评估这些凝珠对上游无氧污泥毯 (UASB) 反应堆的性能,稳定性和微生物群体的影响.
主要方法:
- 用不同度的磁铁和粉制造PVA/Fe/粉凝珠.
- 基于物理强度和染料去除效率的凝珠组成的优化.
- 在30°C和11-24小时的液压保留时间 (HRT) 中运行两个平行2升上游无氧污泥毯 (UASB) 反应堆302天.
- 一个反应堆 (UB) 增强了优化的凝珠,而另一个 (U) 则作为控制器.
- 使用多样性指数进行微生物社区分析,以评估凝珠对细菌群体的影响.
主要成果:
- 优化的PVA/Fe/粉凝珠 (5%磁铁,0.5%粉) 显示出优越的物理强度和处理性能.
- 与控制组 (U) 相比,凝珠增强反应器 (UB) 显示出明显更好的性能和更高的耐受性对染料毒性,特别是在 200 mg·L-1 影响染料度下.
- 微生物分析证实,凝珠中染料降解剂Clostridium的成功固定.
- 多样性指数表明,凝珠在波动的染料度下促进了微生物多样性和弹性.
结论:
- PVA/Fe/粉凝珠是有效的生物载体,可增强亚染料废水的无氧处理.
- 生物载体通过支持强大而多样化的微生物群体,提高了处理系统的稳定性和效率.
- 这项技术显示出在织和染料制造废水处理中工业应用的巨大潜力.
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