Bioremediation of heavily oil-polluted seawater by a bacterial consortium immobilized in cocopeat and rice hull powder.
Bioremediation of heavily oil-polluted seawater by a bacterial consortium immobilized in cocopeat and rice hull powder.
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DOI：
10.4265/bio.19.11
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发表时间：
2014
影响因子：
1.2
通讯作者：
S. Nuñal;S. M. S. Santander‐de Leon-S.-M.-S.-Santander‐de-Leon-1414484914;E. Bacolod;J. Koyama;S. Uno;M. Hidaka;T. Yoshikawa;H. Maeda
中科院分区：
文献类型：
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作者：
S. Nuñal;S. M. S. Santander‐de Leon-S.-M.-S.-Santander‐de-Leon-1414484914;E. Bacolod;J. Koyama;S. Uno;M. Hidaka;T. Yoshikawa;H. Maeda
我们研究了椰子肉和水稻船体粉末作为生物载体的石油降解细菌财团从农业废物的有效性。扫描电子显微镜显示两种载体的表面上的细菌细胞的定植和强烈的附着。60天的体外海水生物修复试验的结果表明，显着的石油减少和高可培养的细菌计数的治疗与载体附着的细菌财团相比，治疗补充了相同的财团在自由生活和封装形式。在脂肪族和芳香族馏分的显着降解，得到增强与载体固定化财团的治疗。所研制的固定化细胞在贮存6个月期间显示出持续的活性和活力。这项研究的结果表明，廉价的废物材料可以利用作为生物载体的石油降解财团和固定化的生物载体，可以提高石油污染的海水的生物修复。
We examined the effectiveness of cocopeat and rice hull powder obtained from agricultural wastes as biocarriers for an oil-degrading bacterial consortium. Scanning electron microscopy revealed colonization and strong attachment of bacterial cells on the surface of both carriers. Results of a 60-day in vitro seawater bioremediation trial showed significant oil reduction and high cultivable bacterial counts in treatments augmented with the carrier-attached bacterial consortia compared to treatments supplemented with the same consortium in free living and encapsulated forms. Significant degradations in both aliphatic and aromatic fractions were obtained in treatments augmented with carrier-immobilized consortia. The developed immobilized cells showed sustained activities and viabilities during storage for six months. Results of this study demonstrated that inexpensive waste materials can be utilized as biocarriers of an oil-degrading consortium and that immobilization on biocarriers can enhance the bioremediation of oil-contaminated seawater.