• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>International Journal of Molecular Sciences >Pilot Scale Study: First Demonstration of Hydrophobic Membranes for the Removal of Ammonia Molecules from Rendering Condensate Wastewater
【2h】

Pilot Scale Study: First Demonstration of Hydrophobic Membranes for the Removal of Ammonia Molecules from Rendering Condensate Wastewater

机译：中试规模研究：疏水膜从凝结废水中去除氨分子的首次演示

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

Hydrophobic membrane contactors represent a promising solution to the problem of recycling ammoniacal nitrogen (N-NH ) molecules from waste, water or wastewater resources. The process has been shown to work best with wastewater streams that present high N-NH concentrations, low buffering capacities and low total suspended solids. The removal of N-NH from rendering condensate, produced during heat treatment of waste animal tissue, was assessed in this research using a hydrophobic membrane contactor. This study investigates how the molecular composition of rendering condensate wastewater undergo changes in its chemistry in order to achieve suitability to be treated using hydrophobic membranes and form a suitable product. The main objective was to test the ammonia stripping technology using two types of hydrophobic membrane materials, polypropylene (PP) and polytetrafluoroethylene (PTFE) at pilot scale and carry out: (i) Process modification for NH molecule removal and (ii) product characterization from the process. The results demonstrate that PP membranes are not compatible with the condensate waste as it caused wetting. The PTFE membranes showed potential and had a longer lifetime than the PP membranes and removed up to 64% of NH molecules from the condensate waste. The product formed contained a 30% concentrated ammonium sulphate salt which has a potential application as a fertilizer. This is the first demonstration of hydrophobic membrane contactors for treatment of condensate wastewater.
机译：疏水膜接触器代表了从废物，水或废水资源中回收氨氮（N-NH）分子的问题的有希望的解决方案。事实证明，该工艺最适用于呈现高N-NH浓度，低缓冲能力和低总悬浮固体的废水流。在这项研究中，使用疏水性膜接触器评估了废弃动物组织热处理过程中产生的冷凝水中N-NH的去除。这项研究调查了提炼冷凝废水的分子组成如何经历其化学变化，以实现适用于使用疏水膜处理并形成合适产品的适宜性。主要目的是在中试规模下使用聚丙烯（PP）和聚四氟乙烯（PTFE）两种疏水性膜材料测试氨气汽提技术，并进行：（i）去除NH分子的工艺改进和（ii）从过程。结果表明，PP膜与冷凝水废物不相容，因为它会引起润湿。 PTFE膜具有潜力，并且比PP膜具有更长的使用寿命，并且可以从冷凝液废物中去除高达64％的NH分子。所形成的产物包含30％的浓硫酸铵盐，其潜在地用作肥料。这是用于处理冷凝水的疏水膜接触器的首次展示。

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