Abstract

The mechanical treatment (MT) of brown coals in the presence of a complex of oxidizing alkaline reagents and mineral salts increased the yield of water-soluble humic substances (HSs) by 20–30%. The composition of coals and reagents in the MT affected the concentration of acidic functional groups in humic acids. Ion-exchange processes during the MT of coals with mineral salts were accompanied by an increase in the concentrations of macro and trace elements in the composition of HSs. A significant increase in the antioxidant activity of humic acids was found upon MT with ammonium phosphate and ammonium sulfate. Mineral elements in HSs exhibited physiological activity by influencing the development of wheat roots and seedlings.

中文翻译：

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矿盐机械处理煤时腐殖质成分和性质的变化

摘要

在氧化性碱性试剂和矿物盐的复合物存在下对褐煤进行机械处理 (MT) 将水溶性腐殖质 (HS) 的产量提高了 20-30%。MT 中煤和试剂的组成影响腐植酸中酸性官能团的浓度。含矿物盐的煤在 MT 过程中的离子交换过程伴随着 HS 组成中宏量和微量元素浓度的增加。在使用磷酸铵和硫酸铵进行 MT 处理时发现腐植酸的抗氧化活性显着增加。HSs中的矿物质元素通过影响小麦根系和幼苗的发育而表现出生理活性。