• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ecotoxicology and Environmental Safety >Full-scale bioreactor pretreatment of highly toxic wastewater from styrene and propylene oxide production
【24h】

Full-scale bioreactor pretreatment of highly toxic wastewater from styrene and propylene oxide production

机译：大规模生物反应器预处理苯乙烯和环氧丙烷生产的剧毒废水

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

The wastewater originating from simultaneous production of styrene and propylene oxide (SPO) is classified as highly polluted with chemical oxygen demand level in the range 5965 to 9137 mg L~(-1)-as well as highly toxic. The dilution factor providing for a 10 percent toxic effect of wastewater samples in a test with Paramedum caudatum was 8.0-9.5. Biological approach for pretreatment and detoxification of the wastewater under full-scale bioreactor conditions was investigated. The number of suspended microorganisms and the clean up efficiency were increased up to 5.5-6.58 × 10~8 CFU mL~(-1) and 88 percent, respectively during the bioreactor's operation. Isolates in the Citrobacter, Burkholderia, Pseudomonas, and Paracoccus genera were dominant in the mature suspended, as well as the immobilized microbial community of the bioreactor. The most dominant representatives were tested for their ability to biodegrade the major components of the SPO wastewater and evidence of their role in the treatment process was demonstrated. The investigated pretreatment process allowed the waste-water to be detoxified for conventional treatment with activated sludge and was closely related to the maturation of the bioreactor's microbial community.
机译：同时生产苯乙烯和环氧丙烷（SPO）的废水被分类为高度污染，化学需氧量在5965至9137 mg L〜（-1）范围内，并且具有剧毒。在尾巴百美草的测试中，废水样品的毒性因子为10％，其稀释系数为8.0-9.5。研究了在全尺寸生物反应器条件下对废水进行预处理和排毒的生物方法。在生物反应器运行期间，悬浮微生物的数量和清除效率分别提高到5.5-6.58×10〜8 CFU mL〜（-1）和88％。柠檬酸杆菌，伯克霍尔德氏菌，假单胞菌和副球菌属的分离株在成熟的悬浮液以及生物反应器的固定化微生物群落中占主导地位。测试了最主要的代表对SPO废水的主要成分进行生物降解的能力，并证明了它们在处理过程中的作用。所研究的预处理过程使废水能够被排毒，以便用活性污泥进行常规处理，并且与生物反应器微生物群落的成熟密切相关。

著录项

  • 来源
    《Ecotoxicology and Environmental Safety》 |2014年第10期|195-202|共8页
  • 作者

    Linh Dao; Tatiana Grigoryeva; Alexander Laikov; Ruslan Devjatijarov; Olga Ilinskaya;

  • 作者单位

    Department of Microbiology, Kazan (Volga Region) Federal University, 420008 Kazan, Russian Federation,Kazan (Volga Region) Federal University, 18 Kremlyovs-kaya St., Kazan 420008, Russian Federation;

    Department of Microbiology, Kazan (Volga Region) Federal University, 420008 Kazan, Russian Federation;

    Department of Microbiology, Kazan (Volga Region) Federal University, 420008 Kazan, Russian Federation;

    Department of Microbiology, Kazan (Volga Region) Federal University, 420008 Kazan, Russian Federation;

    Department of Microbiology, Kazan (Volga Region) Federal University, 420008 Kazan, Russian Federation;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Petrochemical wastewater; Full-scale bioreactor; Microbial diversity; Toxicity; Styrene; Propylene oxide;

    机译：石化废水;大规模生物反应器;微生物多样性;毒性;苯乙烯;环氧丙烷;

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