一种利用垃圾焚烧飞灰合成矿物材料降解黄原酸盐的方法

Hydroxyapatite was synthesized through a low-temperature mechanical stirring-ultrasonic chemistry-subcritical hydrothermal process, which solved the stability problems of dioxins and heavy metals in waste incineration fly ash, achieved efficient degradation of xanthates, and improved resource utilization.

CN118512744BActive Publication Date: 2026-07-17SCNU QINGYUAN INSTITUTE OF SCIENCE & TECHNOLOGY INNOVATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SCNU QINGYUAN INSTITUTE OF SCIENCE & TECHNOLOGY INNOVATION CO LTD
Filing Date
2024-04-08
Publication Date
2026-07-17

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Abstract

本发明涉及一种利用垃圾焚烧飞灰合成矿物材料降解黄原酸盐的方法，本发明利用低温机械搅拌‑超声化学‑亚临界水热相结合的工艺，通过采用低温机械搅拌水洗加速飞灰中钙元素的快速溶出，再通过超声化学法使溶出的钙元素与磷酸盐充分反应，形成羟基磷灰石前驱体，然后借助水在超临态理化性质突变的特性，合成羟基磷灰石，同时实现垃圾焚烧飞灰中的二噁英的高效降解与重金属的有效稳定，进而将所合成的羟基磷灰石用于选矿废水中黄原酸盐的降解，实现黄原酸盐的高效去除。不仅为矿物生态环境修复提供了技术支持，还为危险废物的绿色循环再利用，“以废治废，变废为宝”提供了新思路和理论基础。
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