Radiological Waste Processing for the Recovery of Silver through Cementation with Zinc Powder

Galvan, Vicente; Ruelas, A. G. Mendoza; Valdivieso, A. López

doi:10.1080/01496390902880560

Cited by 8 publications

(1 citation statement)

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“…-Cementation reaction used for the synthesis of Ag from leaching solutions and for the purification of electrolytic solutions (metals such as Fe, Zn and Cu are used, which are more active than Ag). The results presented in the specialized literature show that the silver existing in the liquid waste, resulting as radiological effluents, containing thiosulphate, can be recovered by zinc cementation [10], [11].…”

Section: Study Of the Problemmentioning

confidence: 99%

Radiographic film waste management and recovery

Ardelean,

Galfi

et al. 2023

J. Phys.: Conf. Ser.

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Health facilities in Romania generate hundreds of thousands of tons of medical waste (hazardous and non-hazardous) annually. It is therefore necessary to apply a rigorous management of this waste, in compliance with applicable regulations, especially in the case of waste with a high potential for harmfulness. In the context of the global PANDEMIC of COVID 19, the amount of radiographic films generated has increased, using the classic variant when the moderns investigative devices was no longer available. The legislation requires hospitals and clinics to follow certain rules regarding the management of X-rays films. These are considered private information and must be managed according to the legislation, but silver and other chemicals in the film are toxic to the environment when are disposed uncontrolled. Recycling companies prefer to recover silver from effluents used to obtain classical radiography, recovery that is done by electrolysis and does not require large investments. The paper presents a relatively simple technology of recycling the radiographic films starting from laboratory studies, by leaching them in sodium hydroxide solution and the implications from the point of view of managing such activities.

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Section: Study Of the Problemmentioning

confidence: 99%