A Laboratory-Scale Study of the Applicability of a Halophilic Sediment Bioelectrochemical System for in situ Reclamation of Water and Sediment in Brackish Aquaculture Ponds: Effects of Operational Conditions on Performance

Hai The Pham, Phuong Ha Vu, Thuy Thu Thi Nguyen, Ha Viet Thi Bui, Huyen Thanh Thi Tran, Hanh My Tran, Huy Quang Nguyen, Hong Byung Kim
2019 Journal of Microbiology and Biotechnology  
o C seemed to have more accelaration effect on natural degradation than on bioelectrochemical processes. Changing salinity seriously changed the electricity generation but did not clearly affect the bioremediation performance of the SBES, although at 2.5% salinity the SBES displayed a significantly more efficient removal of nitrogen in the water, compared to the control. Variation of pH to practically extreme levels (5.5 and 8.8) led to increased electricity generations but poorer performances
more » ... f the SBES (vs. the control) in removing COD and nitrogen. Altogether, the results suggest some distinct responses of the SBES under brackish conditions and imply that COD removal and nitrogen removal in the system are not completely linked to bioelectrochemical processes but electrochemically enriched bacteria can still perform nonbioelectrochemical COD and nitrogen removals more efficiently than natural ones. The results confirm the application potential of the SBES in brackish aquaculture bioremediation and help propose efficient practices to warrant the success of such application in real-life scenarios. Keywords: Sediment bioelectrochemical systems, brackish aquaculture, in situ bioremediation, operational conditions S S 1608 Pham et al. J. Microbiol. Biotechnol.
doi:10.4014/jmb.1906.06052 fatcat:7qruy4r24zfajpx3jx2cbrj3hy