Sewage slush ashes are materials composed of polyphase particles. Ashes are fine-grained with many amorphous components, and analytical techniques such as X-ray diffractometry cannot recover all the properties. For sewage sludge ash, treatment often focuses on phosphate recovery. Automated mineralogy techniques were applied in order to study phosphate associations and their behavior towards chemical processes. This work shows the distribution of phosphate content in sewage sludge ash and identifies the main recovered phosphate phases in acid leaching. Data interpretation was focused on the target material, phosphate. The approach documents spectra labelling with respect to one target component, phosphorus. This is a tool for assessing sewage sludge ashes towards their phosphate recovery potential and highlights issues processing needs to address.

中文翻译：

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扫描电子显微镜自动矿物学分析灰分的改进评估策略

污水泥灰是由多相颗粒组成的材料。烟灰具有许多无定形成分的细颗粒，X射线衍射等分析技术无法恢复所有特性。对于污水污泥灰，处理通常集中在磷酸盐的回收上。为了研究磷酸盐缔合及其对化学过程的行为，应用了自动矿物学技术。这项工作显示了污水污泥灰中磷酸盐含量的分布，并确定了酸浸过程中回收的主要磷酸盐相。数据解释的重点是目标物质磷酸盐。该方法记录了针对一种目标组分磷的光谱标记。这是用于评估污水污泥灰分的磷酸盐回收潜力的工具，并突出了处理需要解决的问题。