Transformation of apatite phosphorus and non-apatite inorganic phosphorus during incineration of sewage sludge
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- 作者：Rundong Li ; rdlee@163.com" class="auth_mail" title="E-mail the corresponding author ; Ziheng Zhang ; Yanlong Li ; Wenchao Teng ; Weiyun Wang ; Tianhua Yang
- 关键词：Sewage sludge ash ; Apatite phosphorus ; Non-apatite inorganic phosphorus ; Transformation ; Thermogravimetric analysis&ndash ; differential scanning calorimetric analysis ; X-ray diffraction
- 刊名：Chemosphere
- 出版年：2015
- 出版时间：December 2015
- 年：2015
- 卷：141
- 期：Complete
- 页码：57-61
- 全文大小：1346 K
文摘
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A novel approach to P recovery from sewage sludge was studied by XRD and TGA–DSC.
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High temperature and CaO could effectively promote transformation from NAIP to AP.
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The AP percentage in total phosphorus reaches 99% at 950 °C in sewage sludge ash.
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Phosphorus components emerged during the thermal treatment was measurements.
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The reactions between NAIP and CaO at different temperatures were concluded.