...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Aquaculture International >Nitrate removal efficiency and bacterial community of polycaprolactone-packed bioreactors treating water from a recirculating aquaculture system
【24h】

Nitrate removal efficiency and bacterial community of polycaprolactone-packed bioreactors treating water from a recirculating aquaculture system

机译：硝酸盐去除效率和细菌群落从循环水产养殖系统处理水的聚己内酯包装生物反应器

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A denitrification reactor packed with polycaprolactone (PCL) as a carbon source and biofilm carrier was developed to remove nitrate nitrogen (NO3--N) from the water of a recirculating aquaculture system for 115 days. The hydraulic retention time was set to 6 h, and the water flow rate was 0.95 L h(-1). The removal rates of NO3--N ranged from 34.67 to 155.7 g NO3--N m(-3) day(-1) when the effluent concentrations ranged between 1.62 and 72.25 mg L-1. No obvious changes in the Fourier transform infrared spectra of the PCL before and after use were observed. Bacterial community structure in the biofilm of the PCL granules was analyzed using Illumina MiSeq sequencing technology. Proteobacteria and Bacteroidetes were predominant in the biofilm, with relative abundances of 63.9 and 27.4%, respectively. Three genera, Acidovorax, Azospira, and Diaphorobacter, were capable of both denitrification and PCL degradation. This study indicates that PCL-packed reactors may be used and optimized for removing nitrate from aquaculture effluents.
机译：开发了用聚己内酯（PCL）作为碳源和生物膜载体的脱氮反应器，以从再循环水产养殖系统的水中除去硝酸盐氮（NO3 - N）115天。将液压保留时间设定为6小时，水流速为0.95μm（-1）。当流出物浓度范围为1.62和72.25mg L-1时，NO3 - N的去除率范围为34.67至155.7g NO 3 - N m（-3）天（-1）。在使用之前和之后，PCL的傅里叶变换红外光谱没有明显变化。使用Illumina Miseq测序技术分析了PCL颗粒的生物膜中的细菌群落结构。植物体外细菌和菌体在生物膜中占主导地位，相对丰富的63.9和27.4％。三个属，酸胃，氮杂血清和脱色杆菌能够脱氮和PCL降解。该研究表明可以使用并优化PCL填充的反应器以从水产养殖流出物中除去硝酸盐。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号