...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Science of the Total Environment >Bioaugmentation of membrane bioreactor with Achromobacter denitrificans strain PR1 for enhanced sulfamethoxazole removal in wastewater
【24h】

Bioaugmentation of membrane bioreactor with Achromobacter denitrificans strain PR1 for enhanced sulfamethoxazole removal in wastewater

机译：具有achroMobacter Denitrifutifuans菌株Pr1的膜生物反应器的生物沉积Pr1，用于增强废水中的磺胺甲恶唑菌

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

Achromobacter denitnficans strain PR1, previously found to harbour specific degradation pathways with high sulfamethoxazole (SMX) degradation rates, was bioaugmented into laboratory-scale membrane bioreactors (MBRs) operated under aerobic conditions to treat SMX-containing real domestic wastewater. Different hydraulic retention times (HRTs), which is related to reaction time and loading rates, were considered and found to affect the SMX removal efficiency. The availability of primary substrates was important in both bioaugmented and non-bioaugmented activated sludge (AS) for cometabolism of SMX. High HRT (24 h) resulted in low food to microorganism ratio (F/M) and low SMX removal, due to substrate limitation. Decrease in HRT from 24 h to 12 h, 6 h and finally 4 h led to gradual increases in primary substrates availability, e.g. organic compounds and ammonia, resulted in increased SMX removal efficiency and degradation rate, and is more favorable for high-rate wastewater treatment processes. After inoculation into the MBRs, the bioaugmentation strain was sustained in the reactor for a maximum of 31 days even though a significant decrease in abundance was observed. The bioaugmented MBRs showed enhanced SMX removal, especially under SMX shock loads compared to the control MBRs. The results of this study indicate that re-inoculation is required regularly after a period of time to maintain the removal efficiency of the target compound. (C) 2018 Elsevier B.V. All rights reserved.
机译：achroMobacter denitnficans菌株Pr1，以前发现具有高磺胺甲恶唑（SMX）降解速率的特异性降解途径，在有氧条件下生物化到实验室型膜生物反应器（MBRS）中，以治疗含SMX的真正的国内废水。考虑了与反应时间和加载率相关的不同液压保留时间（HRT），并发现影响SMX去除效率。初级底物的可用性在生物沉积和非生物沉积的活化污泥（AS）中对于SMX的Cometabolism两者都很重要。高HRT（24小时）导致低食物与微生物比（F / m）和低SMX去除，由于基材限制。 HRT从24小时降低到12小时，6小时，最后4小时导致主要基板可用性逐渐增加，例如，有机化合物和氨，导致SMX去除效率和降解速率增加，并且更有利的是高速废水处理过程。接种到MBR后，即使观察到丰富的显着降低，生物成菌株最多300天。生物化的MBRS显示出增强的SMX去除，特别是在与对照MBR相比的SMX冲击载荷下。该研究的结果表明在一段时间后定期重新接种以维持目标化合物的去除效率。 （c）2018年elestvier b.v.保留所有权利。

著录项

  • 来源
    《The Science of the Total Environment》 |2019年第838期|44-55|共12页
  • 作者

    Nguyen P. Y.; Silva Ana F.; Reis Ana C.; Nunes Olga C.; Rodrigues Alexandre M.; Rodrigues Joao E.; Cardoso Vitor Vale; Benoliel Maria J.; Reis Maria A. M.; Oehmen Adrian; Carvalho Gilda;

  • 作者单位

    Univ Nova Lisboa Dept Quim UCIBIO REQUIMTE Fac Ciencias & Tecnol P-2829516 Caparica Portugal;

    IBET Apartado 12 P-2781901 Oeiras Portugal|Univ Nova Lisboa ITQB Inst Tecnol Quim & Biol Antonio Xavier Av Republ P-2780157 Oeiras Portugal;

    Univ Porto LEPABE Chem Engn Dept Fac Engn P-4200465 Porto Portugal;

    Univ Porto LEPABE Chem Engn Dept Fac Engn P-4200465 Porto Portugal;

    EPAL Empresa Portuguesa Aguas Livres SA Lab Anal Agua Ave Berlim 15 P-1800031 Lisbon Portugal;

    EPAL Empresa Portuguesa Aguas Livres SA Lab Anal Agua Ave Berlim 15 P-1800031 Lisbon Portugal;

    EPAL Empresa Portuguesa Aguas Livres SA Lab Anal Agua Ave Berlim 15 P-1800031 Lisbon Portugal;

    EPAL Empresa Portuguesa Aguas Livres SA Lab Anal Agua Ave Berlim 15 P-1800031 Lisbon Portugal;

    Univ Nova Lisboa Dept Quim UCIBIO REQUIMTE Fac Ciencias & Tecnol P-2829516 Caparica Portugal;

    Univ Nova Lisboa Dept Quim UCIBIO REQUIMTE Fac Ciencias & Tecnol P-2829516 Caparica Portugal|Univ Queensland Sch Chem Engn Brisbane Qld 4072 Australia;

    Univ Nova Lisboa Dept Quim UCIBIO REQUIMTE Fac Ciencias & Tecnol P-2829516 Caparica Portugal|Univ Queensland Adv Management Ctr Brisbane Qld 4072 Australia;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Hydraulic retention time; Bioaugmentation; Cometabolism; Antibiotics; Organic loading rate; Nitrification rate;

    机译：液压保留时间;生物沉积;cometabolism;抗生素;有机加载率;硝化率;

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