Format

Send to

Choose Destination
Mar Pollut Bull. 2015 Sep 15;98(1-2):235-46. doi: 10.1016/j.marpolbul.2015.06.042. Epub 2015 Jun 29.

Optimization of biostimulant for bioremediation of contaminated coastal sediment by response surface methodology (RSM) and evaluation of microbial diversity by pyrosequencing.

Author information

1
Department of Environmental Engineering, Korea Maritime and Ocean University, Busan, South Korea.
2
Department of Environmental Engineering, Korea Maritime and Ocean University, Busan, South Korea. Electronic address: soyc@kmou.ac.kr.
3
Nuclear Power Equipment Research Center, Korea Maritime and Ocean University, Busan, South Korea.

Abstract

The present study aims to optimize the slow release biostimulant ball (BSB) for bioremediation of contaminated coastal sediment using response surface methodology (RSM). Different bacterial communities were evaluated using a pyrosequencing-based approach in contaminated coastal sediments. The effects of BSB size (1-5cm), distance (1-10cm) and time (1-4months) on changes in chemical oxygen demand (COD) and volatile solid (VS) reduction were determined. Maximum reductions of COD and VS, 89.7% and 78.8%, respectively, were observed at a 3cm ball size, 5.5cm distance and 4months; these values are the optimum conditions for effective treatment of contaminated coastal sediment. Most of the variance in COD and VS (0.9291 and 0.9369, respectively) was explained in our chosen models. BSB is a promising method for COD and VS reduction and enhancement of SRB diversity.

KEYWORDS:

Biostimulant ball; COD reduction; Coastal sediment; Pyrosequencing; Response surface methodology; Sulfate reducing bacteria

PMID:
26139459
DOI:
10.1016/j.marpolbul.2015.06.042
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center