Metal recovery by ion-exchange resins from municipal incinerated bottom ash
Visualitza/Obre
Tipus de documentComunicació de congrés
Data publicació2019
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
Municipal waste incineration plants produce large amounts of bottom ashes, being higher
year over year. In order to follow the circular economy scheme proposed by the EU, a recovery step is
required to valorise the high added-value elements present in these ashes, such as copper (Cu), zinc
(Zn) or even gold (Au). For this reason, the aim of this work is to recover these metal ions by means of
ion-exchange resins at different pHs. Thus, different acid and base solutions were used to lixiviate
bottom ashes from a municipal waste incineration plant in Barcelona (Spain) and two different ionexchange resins (Purolite S940 and AuRIX 100) were tested to obtain the maximum Cu, Zn and Au
recovery. Results indicate that it was possible to obtain Cu and Zn extraction percentages around 99 %
at pH 5, whereas Au was extracted about 62.5 % at pH 9, after 24 h.
CitacióReig, M. [et al.]. Metal recovery by ion-exchange resins from municipal incinerated bottom ash. A: IWA Resource Recovery Conference. "3rd IWA Resource Recovery Conference: IWA RR2019, Venice (Italy), 08-12 September 2019". 2019, p. 462-463.
ISBN9788894470000
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