...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Microbiology and Biotechnology >Nitrification, denitrification, and dechlorination in bleached kraft pulp mill wastewater
【24h】

Nitrification, denitrification, and dechlorination in bleached kraft pulp mill wastewater

机译：漂白牛皮纸制浆厂废水的硝化，反硝化和脱氯

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

This study deals with combining the biological removal of organic halogens with the removal of nitrogen from bleached kraft pulp mill wastewater in fluidized-bed reactors under nitrifying and denitrifying conditions, Untreated and biotreated bleached kraft pulp mill wastewaters had no detrimental effect on nitrification or denitrification. The nitrifying biofilm reactor, pregrown on synthetic inorganic feed with ammonia, removed without a lag phase adsorbable organic halogens [7.2 mg Cl (g biomass volatile solids)(-1)day(-1)] from bleached kraft pulp mill wastewater and selected chlorophenols from synthetic wastewater. Electron microscopical examination of the biofilm showed that bacteria, morphologically similar to the nitrifying species Nitrosomonas or Nitrobacter, and Nitrosospira were dominant. The denitrifying fluidized-bed reactor, pregrown on nitrate and methanol, denitrified without a lag phase bleached kraft pulp mill wastewater. Under denitrifying conditions, 35% of the total organic carbon content of untreated bleached kraft pulp mill wastewater was removed. The reducing power delivered by untreated bleached kraft pulp mill wastewater for denitrification was 2 mmol electrons/mmol carbon mineralized. Dechlorination under denitrifying conditions was negligible.
机译：该研究将硝化和反硝化条件下流化床反应器中漂白牛皮纸制浆厂废水的生物脱除有机氮与脱氮相结合，未经处理和生物处理的漂白牛皮纸浆厂废水对硝化或反硝化没有不利影响。硝化生物膜反应器，在合成无机饲料中与氨一起预生长，从漂白的牛皮纸制浆厂废水和选定的氯酚中去除，没有滞后相吸附的有机卤素[7.2 mg Cl（g生物质挥发性固体）（-1）day（-1）]来自合成废水。对生物膜的电子显微镜检查表明，细菌在形态上类似于硝化亚硝化单胞菌或硝化细菌和亚硝基螺菌。在硝酸盐和甲醇上预生长的反硝化流化床反应器，在没有滞后相漂白的牛皮纸制浆厂废水的情况下进行反硝化。在反硝化条件下，未处理的漂白牛皮纸制浆厂废水中总有机碳含量的35％被去除。未经处理的漂白牛皮纸制浆厂废水用于反硝化的还原能力为2 mmol电子/ mmol矿化碳。在反硝化条件下的脱氯可以忽略不计。

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