...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Residuals Science & Technology >Increased energy recovery from anaerobic digestion of thickened wastewater sludge
【24h】

Increased energy recovery from anaerobic digestion of thickened wastewater sludge

机译：通过增稠废水污泥的厌氧消化提高能量回收

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 paper presents results from experimental work on multiple-phase anaerobic digestion of thickened wastewater sludge and its effect on overall energy balance compared to conventional mesophilic anaerobic digestion. Three labs-scale anaerobic digestion systems were assembled: (1) three-phase mesophilic acid digestion followed by mesophilic gas digestion; (2) three phase low-mesophilic acid digestion followed by mesophilic gas digestion and (3) conventional mesophilic anaerobic digestion. System (1) and (2) were operated on thickened wastewater sludge (5.7 % TS) while system (3) was fed raw, un-thickened sludge (4.8% TS). Calculations of energy balance included following scenarios: all systems operated at equal SRT of 22 days, conventional mesophilic digestion operated at lower solids concentration in feed sludge (3.9% TS compared to 4.8% TS), and systems operated at equal volumes, which resulted in extension of the retention time in gas digesters of multiple-phase digestion systems. The latter scenario resulted in highest amount of energy available for recovery (for meso acid/meso gas system) from any configurations evaluated.
机译：与常规的中温厌氧消化相比，本文介绍了浓稠污泥多相厌氧消化实验及其对总体能量平衡的影响。组装了三个实验室规模的厌氧消化系统：（1）三相中温酸消化，然后进行中温气体消化; （2）三相低中温酸消化，然后进行中温气体消化;（3）常规中温厌氧消化。系统（1）和（2）在增稠的废水污泥（5.7％TS）上运行，而系统（3）则供给未增稠的未经处理的污泥（4.8％TS）。能量平衡的计算包括以下情形：所有系统均以相等的SRT 22天运行，常规中温消化以进料污泥中较低的固体浓度运行（3.9％TS比4.8％TS），并且系统以相同体积运行，导致延长了多相消化系统中气体消化器的保留时间。后一种情况导致从评估的任何配置中可回收的最大能量（对于中酸/中观气体系统）可用。

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