Adsorption of Organic Compounds on Minerals
Organic compounds have attracted extensive concerns in water treatment, agriculture and ecological engineering due to most of which are poorly-biodegradable and highly-toxic to aquatic ecosystem as well as the human beings. Therefore, developing efficient
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Abstract Organic compounds have attracted extensive concerns in water treatment, agriculture and ecological engineering due to most of which are poorly-biodegradable and highly-toxic to aquatic ecosystem as well as the human beings. Therefore, developing efficient and economical technologies to remove organic contaminants from aqueous system is highly essential for ensuring the safty of drinking water for human beings. In this chapter, the adsorption of organic compounds on minerals, which is one of the most promising technologies for removing organic compounds, will be discussed. Four kinds of typical organic compounds, i.e. dyes, phenolic compounds, antibiotics and perfluorooctane sulphonate were discussed in detail. The physical and chemical properties of each organic compounds were firstly introduced. Then the structure and properties of minerals which were appropriate to immobilize organic compounds were reviewed. In the meanwhile, in each section, the adsorption process of those organic compounds on minerals and the related adsorption mechanism were also discussed. This chapter provided a comprehensive insight into the role of natural or modified minerals in organic compounds adsorption, which probably pave the way for organic wastewater treatment. Keywords Organic compounds exchange Adsorption
Minerals Hydrophobic interaction Ion
J. Su (&) Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People’s Republic of China e-mail: [email protected] © Springer Nature Switzerland AG 2021 S. Song and B. Li (eds.), Adsorption at Natural Minerals/Water Interfaces, Engineering Materials, https://doi.org/10.1007/978-3-030-54451-5_6
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1 Introduction Organic compounds in water treatment, attracted extensive concerns because most of which are poorly–biodegradable and do great harm to aquatic ecosystem as well as the health of human beings. Compared with inorganic ions, the larger size, more complicated structure and higher toxicity have made the removal of organic compounds more challengeable. In this chapter, the adsorption of organic compounds on minerals, which is one of the most promising technologies for removing organic compounds, will be discussed. The development of organics adsorption by minerals as well as the related physical and chemical adsorption principles will be introduced. Detailed discussion will be given on the adsorption of dyes, phenolic compounds, antibiotics and perfluorooctane sulphonate. The physical and chemical properties of each organic compounds, the type and structure of mineral adsorbents, and the probable adsorption mechanisms will also be described.
1.1
Organic Compounds
Organic compounds, especially organic contaminants, deriving from industrial production, waste water disposal and agricultural fertilization, have attracted highly-intensive attention of the government, public and environmental scientists in past few decades (Fig. 1). Most of organic compou
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