...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Biochemical Engineering Journal >Simultaneous in-situ excess sludge reduction and removal of organic carbon and nitrogen by a pilot-scale continuous aerobic-anaerobic coupled (CAAC) process for deeply treatment of soybean wastewater
【24h】

Simultaneous in-situ excess sludge reduction and removal of organic carbon and nitrogen by a pilot-scale continuous aerobic-anaerobic coupled (CAAC) process for deeply treatment of soybean wastewater

机译：通过中试连续好氧-厌氧耦合（CAAC）工艺同时原地过量污泥减少和去除有机碳和氮，用于深度处理大豆废水

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

A pilot-scale continuous aerobic-anaerobic coupled (CAAC) process was constructed and implemented for simultaneous excess sludge reduction and removal of organic carbon and nitrogen from the anaerobic effluent generated by an internal circulation (IC) reactor for treating soybean wastewater. When the hydraulic retention time (HRT) was shortened to 1.3 days, the average removal efficiencies for chemical oxygen demand (COD), NH+-N, and total nitrogen (TN) reached 86%, 91%, and 67%, respectively. The mixed liquor suspended solids (MLSS) in the effluent generated by the CAAC process amounted to only 24mg/L on average. The sludge production rate was estimated to be 0.1582 g MLSS/g COD, which is only 32% of that achieved by the conventional activated sludge process. The denaturing gradient gel electrophoresis (DGGE) analysis result showed that some fermentative and acetogenic bacteria were detected in anoxic and anaerobic zones. Such populations are associated with the anaerobic digestion and in-situ reduction of activated sludge.
机译：构建并实施了中试规模的连续好氧-厌氧耦合（CAAC）工艺，用于同时减少污泥过多并从内部循环（IC）反应器处理大豆废水产生的厌氧废水中去除有机碳和氮。当水力停留时间（HRT）缩短至1.3天时，化学需氧量（COD），NH + -N和总氮（TN）的平均去除效率分别达到86％，91％和67％。 CAAC工艺产生的废水中的混合液悬浮固体（MLSS）平均平均仅为24mg / L。污泥产生速率估计为0.1582 g MLSS / g COD，仅是传统活性污泥工艺所达到的32％。变性梯度凝胶电泳（DGGE）分析结果表明，在缺氧和厌氧区检测到一些发酵菌和产乙酸菌。这些种群与厌氧消化和活性污泥的原位还原有关。

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