Iron and phosphorus recovery from ferric precipitation sludge

从铁沉淀污泥中回收铁和磷

• 批准号: LP100200223
• 负责人: Prof Jurg Keller
• 金额: $ 22.27万
• 依托单位: The University of Queensland
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2011
• 资助国家: 澳大利亚
• 起止时间: 2011-06-23 至 2014-06-22
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP100200223
• 关键词: Iron; phosphorus; recovery; ferric; precipitation

To minimise health risks and environmental pollution, water and wastewater treatment processes often use iron salts to eliminate phosphate and other pollutants. This generates large amounts of chemical sludge that is typically sent to landfill. The benefits of this new process will be the recovery of both the iron, which can be reused in the process, and the phosphate, which is a key component in fertiliser. Since phosphate is a limited natural resource with an increasingly high value, the recovery and recycling of this critical element in food production is highly important. The process will also avoid a large part of the sludge production and will make the water treatment processes more cost-effective.

为了最大限度地减少健康风险和环境污染，水和废水处理过程通常使用铁盐来消除磷酸盐和其他污染物。这会产生大量化学污泥，通常被送往垃圾填埋场。这种新工艺的好处是回收可在工艺中重复使用的铁和肥料中的关键成分磷酸盐。由于磷酸盐是一种价值越来越高的有限自然资源，因此食品生产中这一关键元素的回收和再循环非常重要。该工艺还将避免大量污泥的产生，并使水处理工艺更具成本效益。