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通过生物处理去除氧化的质量转移载体

David Fernando Cubides Páez^1,2, Xavier Guimerà Villalba³, Nerea Abasolo Zabalo⁴

¹Eurecat, Centre Tecnològic de Catalunya, Sustainability Area, 08243, Manresa, Spain.

Environmental science and pollution research international

|October 2, 2023

概括

这项研究增强了使用非水相液体 (NAP) 在化学吸收-生物还原系统中去除氧化 (NO). 一些NAP显著提高了NO的溶解性和生物脱,为排放控制提供了有前途的解决方案.

科学领域:

环境工程环境工程
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:

生物技术正在出现,用于减少氧化 (NO) 排放.
在水中低NO溶解度对生物工艺效率构成挑战.
质量转移向量 (NAP) 可以提高NO在水相中的可溶性.

研究的目的:

评估各种非水相液体 (NAP) 作为NO减排的质量转移载体.
评估NAP在综合化学吸收-生物降低 (CABR) 系统中的性能.
为了确定选定的NAP的毒性和生物降解性.

主要方法:

测试了五种NAP:n-hexadecane (HEX),乙烯脂酸盐 (DSE),1,1,1,3,5,5,5-heptamethyl-trisiloxane (HTX),2,2,4,4,6,8,8-heptamethylnonane (HNO) 和油 (SO).这些NAP中含有:n-hexadecane (HEX),乙烯酸盐 (DSE),1,1,1,3,5,5,5,5-heptamethyl-trisiloxane (HTX),2,2,4,4,6,8,8-heptamethylnonane (HNO),以及油 (SO).
测量了NO的气体液体质量转移容量,使用不同的NAP.
用NAP评估水和缓冲溶液中的NO去除效率.
对去化的细菌进行了短期毒性测试,并评估了 DSE 的生物降解性.

主要成果:

对于NO,HNO和HTX表现出最高的气体液体质量转移能力.
HTX提高了NO去除效率,用水达到82%,用酸盐缓冲器达到88%.
测试的NAP没有显示有毒性或抑制生物脱; DSE是生物降解的.

结论:

非水相液体,特别是HNO和HTX,在CABR系统中显著改善了NO质量转移和去除.
纳普增强了NO的溶解性,提高了生物脱过程的效率.
带有特定 NAP 的 CABR 系统为 NO 排放控制提供了一种快速有效的方法.

关键词:

空气污染大气污染生物处理生物处理化学吸收生物降解.质量转移向量是指质量转移向量.氧化氧化是什么?非水相液体的非水相液体

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