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Electrolytic manganese residue stabilization/solidification and resource utilization method
The invention discloses an electrolytic manganese residue stabilizing/curing and resource utilization method which comprises the following steps: mixing low-grade magnesium oxide, cement and sodium dihydrogen phosphate to obtain a curing agent; the electrolytic manganese residues are added into a stirrer, and then water is added for uniform stirring; and adding a curing agent into the stirrer, continuously stirring to uniformly mix the materials, and adding water in the stirring process to finish the stabilization/curing and resource utilization of the electrolytic manganese residues. Compared with Na3PO4. 12H2O and MgO/CaO curing agent systems, the novel method for stably curing the electrolytic manganese residues, provided by the invention, has the advantages that the stabilization effect is higher, and the cost effectiveness is higher. In addition, good mechanical properties can be obtained, so that stabilization/solidification of the electrolytic manganese residues in resource utilization cooperative treatment is achieved, and the concentration of NH4-N and the concentration of Mn < 2 + > in the leachate are reduced to 1.36 mgL <-1 > and 0.19 mgL <-1 > respectively when the electrolytic manganese residues are stabilized for 14 days under the optimal condition.
本发明公开了一种电解锰渣稳定/固化与资源化利用方法，步骤为：将低品位氧化镁、水泥、磷酸二氢钠混合，得固化剂；将电解锰渣加入至搅拌机中，然后加入水搅拌均匀；向搅拌机中加入固化剂继续搅拌使得材料混合均匀，在搅拌过程中加入水，完成电解锰渣稳定/固化与资源化利用。本发明一种新的稳定固化电解锰渣的方法，与Na3PO4·12H2O和MgO/CaO固化剂体系相比，本发明提供的方法的稳定效果更高，成本效益更高。另外可以获得较好的力学特性，从而实现电解锰渣的稳定/固化于资源化利用协同处理，在最佳条件下稳定14d龄期时，浸出液中NH4‑N和Mn2+的浓度分别降至1.36mgL‑1和0.19mgL‑1。
Electrolytic manganese residue stabilization/solidification and resource utilization method
The invention discloses an electrolytic manganese residue stabilizing/curing and resource utilization method which comprises the following steps: mixing low-grade magnesium oxide, cement and sodium dihydrogen phosphate to obtain a curing agent; the electrolytic manganese residues are added into a stirrer, and then water is added for uniform stirring; and adding a curing agent into the stirrer, continuously stirring to uniformly mix the materials, and adding water in the stirring process to finish the stabilization/curing and resource utilization of the electrolytic manganese residues. Compared with Na3PO4. 12H2O and MgO/CaO curing agent systems, the novel method for stably curing the electrolytic manganese residues, provided by the invention, has the advantages that the stabilization effect is higher, and the cost effectiveness is higher. In addition, good mechanical properties can be obtained, so that stabilization/solidification of the electrolytic manganese residues in resource utilization cooperative treatment is achieved, and the concentration of NH4-N and the concentration of Mn < 2 + > in the leachate are reduced to 1.36 mgL <-1 > and 0.19 mgL <-1 > respectively when the electrolytic manganese residues are stabilized for 14 days under the optimal condition.
本发明公开了一种电解锰渣稳定/固化与资源化利用方法，步骤为：将低品位氧化镁、水泥、磷酸二氢钠混合，得固化剂；将电解锰渣加入至搅拌机中，然后加入水搅拌均匀；向搅拌机中加入固化剂继续搅拌使得材料混合均匀，在搅拌过程中加入水，完成电解锰渣稳定/固化与资源化利用。本发明一种新的稳定固化电解锰渣的方法，与Na3PO4·12H2O和MgO/CaO固化剂体系相比，本发明提供的方法的稳定效果更高，成本效益更高。另外可以获得较好的力学特性，从而实现电解锰渣的稳定/固化于资源化利用协同处理，在最佳条件下稳定14d龄期时，浸出液中NH4‑N和Mn2+的浓度分别降至1.36mgL‑1和0.19mgL‑1。
Electrolytic manganese residue stabilization/solidification and resource utilization method
一种电解锰渣稳定/固化与资源化利用方法
FU YONG (author) / QIAO HONGXIA (author) / FENG QIONG (author) / XUE CUIZHEN (author) / LI YANQI (author) / JIA ZHENYU (author)
2023-12-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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