Simulation study on clogging of suspended particles in in-situ leaching of uranium at different concentrations and flow velocity

• Autorzy: Zhou Chunze , Wang Hongqiang , Wu Tongpan , Hu Eming , Lei Zhiwu , Wang Qingliang

Identyfikatory

DOI

10.37190/ppmp/162150

• Języki publikacji: EN

Abstrakty

EN

Clogging problem has become one of the key problems restricting the mining efficiency of in-situ leaching of uranium, and the related research on the law and mechanism of physical clogging has not been reported. In order to identify and understand the complicated law and mechanism, experimental device is established to simulate the physical clogging caused by suspended particles in the uranium process, the physical clogging law and mechanism under different concentrations and velocity of flow are studied. The experimental results show that with the concentration of suspended particles increasing from 100, 200, 300 to 400 mg/L, the permeability of porous media gradually decreases, and the clogging phenomenon becomes more and more obvious. When the size of suspended particles is small and the velocity is 15 mL/min, the porous medium will not appear clogging, while the velocity is 25mL/min, the whole porous medium will slowly appear internal deposition clogging. When the size of suspended solids is larger and the flow rate is 9, 12, 15mL/min, the higher the velocity, the faster the clogging will be, and backwash can alleviate the surface clogging but cannot change the final clogging result. According to the experiment and actual situation, the physical clogging in in-situ leaching of uranium is mainly surface clogging and filter clogging.

Słowa kluczowe

EN

in-situ leaching of uraniom; physical clogging; suspended particles; porous medium; permeability coefficient

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2023
• Tom: Vol. 59, iss. 2
• Strony: art. no. 162150
• Opis fizyczny: Bibliogr. 36 poz., rys., tab., wykr.

Twórcy

autor

Zhou Chunze

• School of Resource Environment and Safety Engineering, University of South China, Hengyang 421001, Hunan, China

autor

Wang Hongqiang

• School of Resource Environment and Safety Engineering, University of South China, Hengyang 421001, Hunan, China

autor

Wu Tongpan

• School of Resource Environment and Safety Engineering, University of South China, Hengyang 421001, Hunan, China

autor

Hu Eming

• School of Resource Environment and Safety Engineering, University of South China, Hengyang 421001, Hunan, China

autor

Lei Zhiwu

• School of Resource Environment and Safety Engineering, University of South China, Hengyang 421001, Hunan, China

autor

Wang Qingliang

• School of Resource Environment and Safety Engineering, University of South China, Hengyang 421001, Hunan, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).