Transformation of phosphorus and stabilization of heavy metals during sewage sludge incineration: the effect of suitable additives and temperatures
Transformation of phosphorus and stabilization of heavy metals during sewage sludge incineration: the effect of suitable additives and temperatures
复制标题
污水污泥焚烧过程中磷的转化和重金属的稳定：合适的添加剂和温度的影响
DOI：
10.1007/s11356-019-06146-2
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发表时间：
2019-08
影响因子：
5.8
通讯作者：
Zhang Ziheng
中科院分区：
文献类型：
--
作者：
Li Rundong;Teng Wenchao;Li Yanlong;Yin Jing;Zhang Ziheng
磷（P）是所有生物体不可替代的营养素，正面临着磷酸盐资源的短缺。研究了污泥热化学处理过程中添加剂和温度对磷和重金属形态的影响。结果表明，添加剂（CaO和MgO）可以促进非磷灰石无机磷（NAIP）向磷灰石磷（AP）的转化。X射线衍射分析结果表明，污泥灰中磷的矿物相主要为AP，并含有MgO和CaO。正交试验结果表明，在750 °C下，Mg：Ca：P的最佳摩尔比为1：3.5：1。风险指数结果表明，富磷SSA中的重金属具有较低的潜在生态风险。热力学平衡计算表明，P与其他金属离子反应的顺序为：Ca 2 +> Mg 2 +> Al 3 +> Fe 3 +> Zn 2 +> K+。
Phosphorus (P), an irreplaceable nutrient for all living organisms, is facing scarcity via phosphate resources. In this research, the effect of suitable additives and temperature on P and heavy metals speciation during sewage sludge (SS) thermochemical treatment was investigated. The results demonstrated that additives (CaO and MgO) could promote the conversion of non-apatite inorganic phosphorus (NAIP) to apatite phosphorus (AP). X-ray diffraction measurements indicated that the phosphorus mineral phase in sewage sludge ash (SSA) mainly was AP, with addition of MgO and CaO. Moreover, orthogonal testing revealed that the optimal molar ratio of Mg:Ca:P for P recovery as AP was 1:3.5:1 at 750 °C. Risk index results implied that the heavy metals in the phosphorus-enriched SSA have low potential ecological risk. Thermodynamic equilibrium calculations revealed that P reacted with the other metal ions was in the following order: Ca2+> Mg2+> Al3+> Fe3+> Zn2+> K+.Graphical Abstract
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影响因子：
13.6
作者：
Guo-ren Xu;Mingwei Liu;Guibai Li
通讯作者：
Guo-ren Xu;Mingwei Liu;Guibai Li
蚯蚓堆肥对添加材料污泥中重金属浓度和形态的影响
影响因子：
11.4
作者：
He, Xin;Zhang, Yaxin;Li, Meirong
通讯作者：
Li, Meirong
DOI：
--
发表时间：
2013
期刊：
--
影响因子：
--
作者：
Qin Yangsong
通讯作者：
Qin Yangsong
影响因子：
5.8
作者：
Jian Zhang;Yu Tian;Jun Zhang
通讯作者：
Jian Zhang;Yu Tian;Jun Zhang
氯化物添加剂强化污泥热解重金属固磷的新进展
影响因子：
11.1
作者：
Bairq, Zain Ali Saleh;Li, Rundong;Liang, Zhiwu
通讯作者：
Liang, Zhiwu