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使用粉末活性焦炭吸附技术与臭氧再生从生物处理纸张废水中去除耐火性COD:性能和分子洞察力

Ying An¹, Huimin Zhang¹, Li Fu²

¹Shanghai Engineering Research Center of Energy - Saving in Heat Exchange Systems, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai, 200090, China.

|August 21, 2024

概括

粉末活性焦炭有效地消除了纸张废水中的耐火化学氧需求 (COD). 再生吸附剂在多个循环中保持了高效率,证明了可持续的解决方案.

科学领域:

环境科学环境科学
水处理技术水处理技术
吸附科学吸附科学

背景情况:

生物处理纸废水 (BTPW) 通常含有耐火化学氧需求 (COD),使用传统方法很难去除.
有效处理BTPW对于环境保护和水资源管理至关重要.

研究的目的:

研究使用粉末活性焦炭 (PAC) 从BTPW中吸附性去除耐火性COD.
描述BTPW中的溶解有机物分量及其吸附行为.
评估使用过的PAC的再生效率,以实现可持续的应用.

主要方法:

使用PAC治疗BTPW的吸附实验,监测COD度.
溶解的有机物 (性酸,性中性酸,性酸) 的分解和分析使用FT-ICR MS.
通过臭氧化和吸附再生周期的评估来再生使用的PAC.

主要成果:

在5克L-1.1的剂量下,PAC有效地将COD从98.9毫克L-1降低到42.6毫克L-1,使其从98.9毫克L-1降低到42.6毫克L-1.
疏水性酸最容易吸附,PAC优先吸附含有碳素基的不和,富含氧的物质.
臭氧化成功再生了PAC,在五个吸附再生周期后保持了87.0%的效率.

结论:

粉末活性焦炭是一种可行的和有效的吸附剂,用于从BTPW中去除耐火性COD.
该研究强调了通过吸附剂再生来实现可持续废水处理的潜力.

关键词:

吸附方式吸附方式吸附方式生物处理的纸张废水.臭氧化是一种臭氧化.粉末活性焦炭粉末的活性焦炭再生再生再生的过程

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