3D打印可控制的生物加速器,具有持续释放特性,可促进 (VI) 抑制脱回收
Chunfang Chao1, Jiaojiao Niu1, Yinuo Liu1
1School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China.
Journal of hazardous materials
|September 27, 2024
概括
3D打印使生物加速器停滞不前,以便在脱系统中持续释放,改善污染物去除和酶活性. 这种新的方法提高了废水处理效率和生物加速器的利用率.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 材料科学 材料科学 材料科学
背景情况:
- 溶性生物加速器有效地减轻了Cr(VI) 在脱化中的抑制,但缺乏持续释放和固定.
- 现有的方法在控制释放和生物加速器的长期调节方面扎.
研究的目的:
- 使用3D打印技术开发具有受控结构和持续释放性能的固定化生物加速器.
- 评估3D打印生物加速器在增强脱化和减轻生物抑制方面的性能.
主要方法:
- 使用3D打印技术制造固定式生物加速器.
- 对生物加速器在144小时内持续释放的评估.
- 对比3D打印生物加速器 (3DP-B) 与对照组的COD和NO3-N去除效率.
- 对关键酶活动,电子转移系统活动和细胞外聚合物物质的分析.
- 调查氨酸-2,6-二硫酸盐 (AQDS) 度对生物抑制释放的影响.
主要成果:
- 从3D打印的生物加速器 (3DP-B) 中持续释放生物加速器至少达到了144小时.
- 3DP-B使恢复时间缩短了1.4倍,并使COD和NO3 - - N的去除效率分别提高了36.5%和38.0%.
- 关键的酶活动,电子转移系统活动和细胞外聚合物物质在脱化生物膜中仍然很高.
- 较低度的AQDS (60毫克·L-1) 与较高度 (1000毫克·L-1) 相比,显示出更好的生物抑制释放.
- 释放的AQDS提高了电子输送能力的1.25倍.
结论:
- 3D打印技术为制造具有受控结构和持续释放的固定生物加速器提供了一种新的策略.
- 3DP-B显著提高了脱化效率和抗生物抑制的弹性,性能优于自然恢复.
- 这项研究强调了3D打印在废水处理中促进生物加速器应用的潜力.
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