Analysis of Resource and GHG Reduction by Recycling Palladium in Plated Spent Catalyst Solution

نویسندگان

چکیده

무전해 도금공정에서 사용되는 콜로이드 타입의 도금폐촉매액내 팔라듐은 회수하지 못하고 폐수로 방출되고 있었으나, 재자원화 기술을 적용하여 팔라듐을 회수하였다. 본 연구에서는 전과정평가기법을 이용하여 시와 폐기 시의 자원 소모량과 온실가스 배출량을 각각 산정한 후, 및 감축량을 분석하였다. 산정 결과, 팔라듐 1 kg 기준으로 폐기시 배출량은 9.67E+03 kgCO2eq., 소모량은 3.94E+01 kgSb-eq.로 나타났으며, 시 1.96E+03 1.54E+01 나타났다. 배출량과 소모량에 미치는 주요 영향물질을 살펴보면, 배출량에 물질은 모두 CO2로 91.42%, 98.37%였으며, 무연탄(hard coal)으로 40.63%, 60.73%로 한편, kg을 재자원화함에 따른 8,967.17 kgCO2eq. 감축되었으며, 10.10 kgSb-eq. 감축되는 것으로 또한, 재자원화로 인한 팔라듐의 직접적인 천연자원 사용저감률은 50%로

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ژورنال

عنوان ژورنال: Resources Recycling

سال: 2021

ISSN: ['2765-3447', '2765-3439']

DOI: https://doi.org/10.7844/kirr.2021.30.3.47