Developed fungal-bacterial biofilms as a novel tool for bioremoval of hexavelant chromium from wastewater

作者：Herath H M L I; Rajapaksha Anushka Upamali; Vithanage Meththika^*; Seneviratne G

来源：Chemistry and Ecology, 2014, 30(5): 418-427.

DOI：10.1080/02757540.2013.861828

• Cr(VI)
• bioremediation
• fungal-bacterial biofilms
• tolerance
• resistance

Remediation measures for hexavalent chromium [Cr(VI)] are required for a safe environment. As a recent development in microbiology, bacterial biofilms are being studied as effective bioremediation agents. When bacteria are in fungal surface-attached biofilm mode, they are called fungal-bacterial biofilms (FBBs). They have not been tested for bioremediation so far. Hence, this study was conducted to develop FBBs and glass-wool-attached bacterial biofilms (BBs), and to evaluate Cr(VI) tolerability and removal of bacterial monocultures, BBs and FBBs. FBBs showed a significantly high level of Cr(VI) tolerance and resistance compared with its BBs or monocultures. After 10 days, up to 90% of Cr(VI) had been removed, which was significantly higher than that of BBs or its monocultures. Thus, it is clear that FBBs can be used as a novel tool to decontaminate Cr(VI) both in situ and ex situ.

• 出版日期2014