• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文OA文献 >Incrustação das torres de arraste de amônia no tratamento de águas subterrâneas poluídas pelo chorume de aterro de resíduos sólidos urbanos: Estudo das causas da incrustação e seus efeitos na eficiência de extração - Scaling of ammonia stripping towers in the treatment of groundwater polluted by municipal solid waste landfill leachate: Study of the causes of scaling and its effects on stripping performance
【2h】

Incrustação das torres de arraste de amônia no tratamento de águas subterrâneas poluídas pelo chorume de aterro de resíduos sólidos urbanos: Estudo das causas da incrustação e seus efeitos na eficiência de extração - Scaling of ammonia stripping towers in the treatment of groundwater polluted by municipal solid waste landfill leachate: Study of the causes of scaling and its effects on stripping performance

机译：氨拖塔的结垢处理城市生活垃圾垃圾渗滤液污染的地下水：结垢的原因及其对提取效率的影响-氨气脱硫塔的结垢处理城市生活垃圾污染的地下水垃圾渗滤液：结垢的原因及其对剥离性能的影响研究

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper documents the causes of the scaling of stripping towers used for the treatment of groundwater polluted by the leachate from an old municipal solid waste (MSW) landfill in northern Italy. The effects of the scaling on the stripping performance are also reported. The whole process consists of a coagulation-flocculation pre-treatment at pH > 11, followed by an ammonia stripping stage, after heating the water to 38°C in order to improve removal efficiency. The stripped ammonia is recovered by absorption with sulfuric acid, producing a 30% solution of ammonium sulfate (reused as a base fertilizer). The effluent air stream is recirculated to the stripping towers (closed loop systems) in order to avoid an excessive temperature drop inside the packings, mainly in winter, with consequent loss of efficiency and risk of icing. The progressive scaling of the packing has resulted in a loss of ammonia removal efficiency from an initial value of 98% (clean packing) down to 80% after six months of continuous operation, necessitating a chemical cleaning. Optimum conditions for design and operation of the stripping process are also documented. © 2015, Institute for Environmental Research in Hydrographic Basins (IPABHi). All rights reserved.
机译：本文记录了意大利北部一个旧的城市生活垃圾（MSW）垃圾填埋场中用于处理渗滤液污染的地下水的汽提塔结垢的原因。还报道了结垢对剥离性能的影响。整个过程包括在pH> 11的条件下进行凝结-絮凝预处理，然后将水加热至38°C以提高去除效率，然后进行氨气汽提阶段。通过用硫酸吸收来回收汽提的氨，产生30％的硫酸铵溶液（用作基础肥料）。流出的气流再循环到汽提塔（闭环系统），以避免填料内部的温度过度下降（主要是在冬天），从而导致效率降低和结冰风险。填料的逐步结垢导致氨去除效率的损失从最初的98％（干净的填料）降低到连续运行六个月后的80％，这需要化学清洗。还记录了用于汽提过程的设计和操作的最佳条件。 ©2015，水文盆地环境研究所（IPABHi）。版权所有。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

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