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A platform for research: civil engineering, architecture and urbanism
Composite curing agent and arsenic-containing waste residue treatment process
The invention discloses a composite curing agent and a treatment process of arsenic-containing waste residues, the composite curing agent is a composition composed of the following components in parts by mass: 10-20 parts of lime, 10-20 parts of polyferric sulfate, 5-15 parts of dolomite sand and 5-15 parts of cement, and the treatment process of the arsenic-containing waste residues adopts the composite curing agent to treat the arsenic-containing waste residues. The composite curing agent can reduce the addition amount of the cement curing agent and save the cost; the capacity increasing ratio of smelting waste slag treatment can be reduced, compared with a conventional process agent, the volume of a solidified body is reduced by 15% when arsenic-containing waste slag is treated through the composite solidification agent, the storage capacity of a landfill is saved, and the unit construction and decommissioning cost of the landfill is reduced; the arsenic leaching concentration in the arsenic slag treated by the arsenic-containing waste slag treatment process is low, and the leaching indexes are all lower than the limit values of related regulations. And the compressive strength is 8-10 Mpa, and the requirements of hazardous waste transfer, transportation and safe landfill disposal are met.
本发明公开了一种复合固化药剂和含砷废渣的处理工艺，复合固化药剂为包括以下质量份的组分构成的组合物：10～20份石灰、10～20份聚合硫酸铁、5～15份白云砂和5～15份水泥，含砷废渣的处理工艺采用复合固化药剂对含砷废渣进行处理。本发明的复合固化药剂可以降低水泥固化剂的添加用量，节约成本；还可降低对冶炼废渣处理的增容比，复合固化药剂处理含砷废渣较常规工艺药剂比固化体体积减少15％，节省填埋场库容，降低填埋场单位建设和退役费用预提成本；本发明的含砷废渣的处理工艺处理后的砷渣中砷浸出浓度低，浸出指标均低于相关规定的限值。抗压强度为8～10Mpa，满足危险废物转移、运输与安全填埋处置的要求。
Composite curing agent and arsenic-containing waste residue treatment process
The invention discloses a composite curing agent and a treatment process of arsenic-containing waste residues, the composite curing agent is a composition composed of the following components in parts by mass: 10-20 parts of lime, 10-20 parts of polyferric sulfate, 5-15 parts of dolomite sand and 5-15 parts of cement, and the treatment process of the arsenic-containing waste residues adopts the composite curing agent to treat the arsenic-containing waste residues. The composite curing agent can reduce the addition amount of the cement curing agent and save the cost; the capacity increasing ratio of smelting waste slag treatment can be reduced, compared with a conventional process agent, the volume of a solidified body is reduced by 15% when arsenic-containing waste slag is treated through the composite solidification agent, the storage capacity of a landfill is saved, and the unit construction and decommissioning cost of the landfill is reduced; the arsenic leaching concentration in the arsenic slag treated by the arsenic-containing waste slag treatment process is low, and the leaching indexes are all lower than the limit values of related regulations. And the compressive strength is 8-10 Mpa, and the requirements of hazardous waste transfer, transportation and safe landfill disposal are met.
本发明公开了一种复合固化药剂和含砷废渣的处理工艺，复合固化药剂为包括以下质量份的组分构成的组合物：10～20份石灰、10～20份聚合硫酸铁、5～15份白云砂和5～15份水泥，含砷废渣的处理工艺采用复合固化药剂对含砷废渣进行处理。本发明的复合固化药剂可以降低水泥固化剂的添加用量，节约成本；还可降低对冶炼废渣处理的增容比，复合固化药剂处理含砷废渣较常规工艺药剂比固化体体积减少15％，节省填埋场库容，降低填埋场单位建设和退役费用预提成本；本发明的含砷废渣的处理工艺处理后的砷渣中砷浸出浓度低，浸出指标均低于相关规定的限值。抗压强度为8～10Mpa，满足危险废物转移、运输与安全填埋处置的要求。
Composite curing agent and arsenic-containing waste residue treatment process
一种复合固化药剂和含砷废渣的处理工艺
LIU YAN (author) / XU ZHENGYONG (author) / LI HUI (author) / YAN WENPING (author) / LONG DONGQING (author)
2022-08-19
Patent
Electronic Resource
Chinese
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