title: Using Bacillus amyloliquefaciens for remediation of aquaculture water.
abstract: Remediation of aquaculture water using microorganisms like Bacillus species is a burgeoning trend for the sustainable development of aquaculture industries. In this work, a Bacillus amyloliquefaciens strain (namely B. amyloliquefaciens HN), isolated from activated sludge of a polluted river, was evaluated for its potential in water remediation using simulated aquaculture water. B. amyloliquefaciens HN exhibited high tolerance towards 80 mg l(-1) of nitrite-N and ammonia-N. It could effectively remove 20 mg l(-1) of nitrite-N, but was inefficient in eliminating ammonia-N when the ammonia-N concentration was below 20 mg l(-1). Further studies showed that the ammonia-N removal by B. amyloliquefaciens HN was more efficient at 30°C and 35°C than 25°C, and that maximum nitrite-N removal rate was achieved at pH 8.
authors.affiliation: Tianjin Research Center of Agricultural Biotechnology, Tianjin, 300192 People's Republic of China.
authors.forename: Fengxing
authors.initials: F
authors.lastname: Xie
authors.forename: Taicheng
authors.initials: T
authors.lastname: Zhu
authors.forename: Fengfeng
authors.initials: F
authors.lastname: Zhang
authors.forename: Ke
authors.initials: K
authors.lastname: Zhou
authors.forename: Yujie
authors.initials: Y
authors.lastname: Zhao
authors.forename: Zhenghua
authors.initials: Z
authors.lastname: Li
keywords: Aquaculture water remediation; Bacillus amyloliquefaciens; Nitrite removal; Nitrogenous compound