Research of Surface-Active Properties of Waste of Processing of Tin Ores

International science and technology conference "Earth science"

Rastanina, N.K.^1 ; Chekmareva, L.I.^1 ; Filimonov, I.Y.^1

Department Chemistry and Chemical Technologies, Pacific National University, 136 Tihookeanskaya street, Khabarovsk

680035, Russia^1

关键词: Complexing agents;    Groundwater contamination;    Impact on the environment;    Low molecular weight;    Mining enterprise;    Organic substances;    Soluble complexes;    Surface-active property;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/272/2/022125/pdf
DOI  :  10.1088/1755-1315/272/2/022125

来源: IOP

【 摘 要 】

The object of research is the waste of enrichment of ories of the closed mining enterprise "Solnechny GOK" of the Khabarovsk territory of the Far Eastern Federal district. The article discusses the results of research of surface-active properties of waste of enrichment of tin ories due to their impact on the environment and public health. Sodium oxalate, trilon B, methylene blue, sodium humate were used as sorbates. Methods for the determination of interaction of waste with the sorbates - thermal effect and discoloration of colored complexing agents in the presence of the waste. Titrimetric methods were used to determine the number of reaction centers of waste. For to determine the nature of the active centers of wastes was use the extinguish of the foam generated by the anionic and nonionic surfactants. The influence of molar mass and structure of sorbates on the nature of their interaction with the waste surface is shown. High molecular polydentate complexing agent form a surface film. Low molecular weight sorbates contribute to the formation of soluble complexes of heavy metals and pollution of water systems. The revealed physico-chemical properties will allow to predict the increase in the probability of groundwater contamination by low molecular weight organic complexing agents and also probability of the best fixing of soils on waste in the presence of high-molecular organic substances of soil absorption complex.