CAJ | 학술논문

随着电子工业的发展,线路板的生产量和废弃量日益增加.传统的火法回收、机械回收、湿法回收等废弃线路板的处理方法金属回收率低、成本高,且极易造成环境污染,不能很好地回收线路板中的有价金属.文中论述了采用生物湿法冶金技术通过拆解-破碎-生物浸出-后续处理4个步骤回收废弃线路板中有价金属的可行性以及该方法能够带来的巨大经济效益,介绍了常用的中温、中等嗜热、极度嗜热冶金微生物的生理生化性质.最后展望了生物湿法冶金技术在未来废弃线路板高效回收方面的应用前景.
수착전자공업적발전,선로판적생산량화폐기량일익증가.전통적화법회수、궤계회수、습법회수등폐기선로판적처리방법금속회수솔저、성본고,차겁역조성배경오염,불능흔호지회수선로판중적유개금속.문중논술료채용생물습법야금기술통과탁해-파쇄-생물침출-후속처리4개보취회수폐기선로판중유개금속적가행성이급해방법능구대래적거대경제효익,개소료상용적중온、중등기열、겁도기열야금미생물적생리생화성질.최후전망료생물습법야금기술재미래폐기선로판고효회수방면적응용전경.
The quantity of circuit board produced and abandoned has increased with the development of electronics industry. The characteristics of pyrometallurgical recovery, mechanical recovery and wet recovery, such as low recovery ratio, high cost and environmental pollution fails to recover the precious metals from wasted circuit board. This article discusses the feasibility and economic value of precious metals recovery from wasted circuit board by bio-hydrometallurgy by the sequence of dismantling-broken-biological leaching-follow-up treatment. The physiological and biochemical properties of the metallurgical microbials at the medium temperature, moderate thermophilic and moderate thermophilic are introduced respectively. The application prospect of the recovering precious metals from wasted circuit board by bio-hydrometallurgy technology is forecasted.