活性炭与地下水有机物吸附特性研究

IF 1.4 Q4 WATER RESOURCES

Journal of Applied Water Engineering and Research Pub Date : 2022-05-23 DOI:10.1080/23249676.2022.2074899

Mouna Jaouadi, N. Amdouni

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引用次数: 0

摘要

突尼斯地下水中含有丰富的溶解有机质(DOM)。本研究采用元素分析、荧光光谱和傅里叶红外光谱对地下水中的有机物进行了研究。测定了总有机碳(TOC)、化学需氧量(COD)和波长254 nm处的紫外吸光度(UV254)。元素分析表明，地下水含氧量高，含碳量低。傅里叶变换红外光谱分析表明，多糖是地下水中的主要成分。研究了活性炭负载铝吸附对DOM的去除效果。吸附后DOM和活性炭的表征证实了有机物的去除。吸附后吸附剂的BET表面减小，证实孔隙被有机物占据。通过吸附去除TOC，活性炭负载的铝(~ 80%)优于生活性炭(~ 52%)，可以探索去除废水中的污染物。

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Characterizations of activated carbons and groundwater organic matter adsorption

Dissolved organic matter (DOM) is abundant in groundwater in Tunisia. In this study, the organic matter from groundwater was examined using elemental analysis, fluorescence and FTIR spectroscopies. In addition, total organic carbon (TOC), chemical oxygen demand (COD) and UV-absorbance at wavelength 254 nm (UV254) were measured. Elemental analysis indicated that groundwater contained a high amount of oxygen but a low amount of carbon. FTIR analyses revealed that polysaccharides were the main compounds present in the groundwater. The removal of DOM was studied by adsorbing activated carbon-supported aluminum. The characterization of DOM and activated carbon after adsorption confirms the removal of organic matter. The decrease in the BET surface of adsorbent after adsorption confirms that the pores are occupied by organic matter. TOC was removed by adsorption, and activated carbon-supported aluminum was superior (∼80%) to raw-activated carbon (∼52%), and may be explored to remove contaminants from wastewater.

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来源期刊

Journal of Applied Water Engineering and Research WATER RESOURCES-

CiteScore

2.90

自引率

16.70%

发文量

期刊介绍： JAWER’s paradigm-changing (online only) articles provide directly applicable solutions to water engineering problems within the whole hydrosphere (rivers, lakes groundwater, estuaries, coastal and marine waters) covering areas such as: integrated water resources management and catchment hydraulics hydraulic machinery and structures hydraulics applied to water supply, treatment and drainage systems (including outfalls) water quality, security and governance in an engineering context environmental monitoring maritime hydraulics ecohydraulics flood risk modelling and management water related hazards desalination and re-use.