해양환경에서 순환골재를 이용한 미생물담체의 효과적인 Cu(II) 제거

초록

In this study, we have developed a recycled aggregate (RA) bio-carrier that combined Desulfovibrio desulfuricans and RA for effective removal of Cu(II) in contaminated seawater. D. desulfuricans, which is one of the sulfate-reducing bacteria (SRB), was exhibited stable growth characteristics in highly salted water and strong resistance to Cu(II) contaminated seawater. Moreover, RA is an alternative of the useful carrier to remove heavy metals from wastewater. The results showed that SRB immobilized RA bio-carrier can enhance removal ratio of Cu(II). In addition, heavy metals tended to be better removed in medium at conditions of above 25℃. In case of heavy metal concentration, they were effectively removed ranging from 50 to 100 ppm. These results show that SRB immobilized RA bio-carriers hold great potential to remove cationic heavy metal species from industrial wastewater in marine environment.

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