...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Integrated environmental assessment and management >Efficacy of Gamma‐Irradiated Macroporous Microbial Biomat for Lead Removal: A Proposed Application to Aquacultures
【24h】

Efficacy of Gamma‐Irradiated Macroporous Microbial Biomat for Lead Removal: A Proposed Application to Aquacultures

机译：γ-辐照的大孔微生物生物粉用于铅移除的疗效：建议应用于水产养殖应用

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Lead mobilization in aquaculture and its generated health hazards prompted the use of a cheap and reusable method for its removal within a short duration. A 3D macroporous microbial biomat formed ofTrichoderma virideimmobilized on luffah was used for Pb removal. The biomat was used to remove 79% of initial 400 mg/kg Pb in 24 h that increased to 87% under optimized conditions of pH, temperature, and contact time. In order to reduce the time needed for Pb bioremoval to 1 h, pretreated biomats were used, resulting in an increase in removal from 58% to 96% upon exposure to gamma radiation (0.01 kilogray [kGy]). The irradiated biomat was studied in terms of morphology, elemental analysis of surface biosorbed Pb and surface functional groups using scanning electron microscopy (SEM), energy dispersive X-ray (EDX), and Fourier transform infrared (FTIR) spectroscopy. The results show a difference in the adsorption pattern. The biomat was reused efficiently for 3 consecutive cycles and was also used in fixed bed column showing 89% removal for downward flow and in real aquaculture samples. Pretreated microbial biomats are very suitable for use in fixed bed reactors or as a biofilter and can be tested in recirculating aquaculture systems (RASs), thereby contributing to water conservation and aquaculture sustainability.Integr Environ Assess Manag2020;16:508-516. (c) 2020 SETAC
机译：在水产养殖中引入动员及其产生的健康危害促使使用廉价和可重复使用的方法来在短时间内移除。在Luffah上形成了血管生殖器Viridemmobilized的3D大孔微生物生物菊酯用于Pb去除。使用在PH，温度和接触时间的优化条件下，在24小时内去除79％的初始400mg / kg Pb。为了减少Pb生物缺钙所需的时间为1小时，使用预处理的生物乳察菇，导致暴露于γ辐射时去除58％至96％的增加（0.01千克拉[kgy]）。通过扫描电子显微镜（SEM），能量分散X射线（EDX），能量分散X射线（FTIR）光谱，在形态学，表面生物吸收性Pb和表面官能团的元素分析中研究了辐照的生物茶。结果显示了吸附模式的差异。将生物菊可有效地重复使用3个连续循环，并且还用于固定床柱，显示出89％的去除下流和实际水产养殖样品。预处理的微生物生物乳非常适合于固定床反应器或作为生物过滤器，并且可以在再循环水产养殖系统（RASS）中进行测试，从而有助于节水和水产养殖可持续性。抵消节约处评估MANAM2020; 16：508-516。16：508-516。 （c）2020 Setac

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