A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Soil remediation improver and soil remediation improvement method
The invention discloses a soil remediation improver and a soil remediation improvement method, and belongs to the technical field of heavy metal pollution treatment. The soil remediation improver is prepared from, by weight, 25-35 parts of cement, 35-55 parts of fly ash, 5-12 parts of quick lime, 7-15 parts of water glass and 2-7 parts of a mixed acid; and the mixed acid is prepared from concentrated sulfuric acid and concentrated nitric acid in a volume ratio of (16-20):1. The soil remediation improvement method comprises the following steps: to-be-remediated soil is crushed and screened to obtain a pretreated soil material; and the pretreated soil material is uniformly mixed with water and the soil remediation agent to obtain a to-be-treated slurry, wherein the soil remediation agent isthe soil remediation improver; and the to-be-treated slurry is stacked and maintained for 7-30 days. The soil remediation improver disclosed by the invention is low in cost, good in heavy metal solidification and stabilization effects and suitable for large-scale application. The soil remediation improvement method is simple to operate and good in remediation effect.
本发明公开了一种土壤修复改良剂及土壤修复改良方法，属于重金属污染治理技术领域。本发明的土壤修复改良剂由包括如下重量份数的原料制成：水泥25‑35份，粉煤灰35‑55份，生石灰5‑12份，水玻璃7‑15份，混酸2‑7份；所述混酸由浓硫酸和浓硝酸以体积比为（16‑20）:1配制而成。本发明的土壤修复改良方法包括如下步骤：将待修复土壤破碎、筛分，得到土壤预处理料；将土壤预处理料与水、土壤修复剂均匀混合，得到待处理浆料；所述土壤修复剂为上述的土壤修复改良剂；将待处理浆料堆放养护7‑30天。本发明的土壤修复改良剂成本低，对重金属的固化、稳定化效果好，适合于大规模应用。本发明的土壤修复改良方法操作简单、修复效果好。
Soil remediation improver and soil remediation improvement method
The invention discloses a soil remediation improver and a soil remediation improvement method, and belongs to the technical field of heavy metal pollution treatment. The soil remediation improver is prepared from, by weight, 25-35 parts of cement, 35-55 parts of fly ash, 5-12 parts of quick lime, 7-15 parts of water glass and 2-7 parts of a mixed acid; and the mixed acid is prepared from concentrated sulfuric acid and concentrated nitric acid in a volume ratio of (16-20):1. The soil remediation improvement method comprises the following steps: to-be-remediated soil is crushed and screened to obtain a pretreated soil material; and the pretreated soil material is uniformly mixed with water and the soil remediation agent to obtain a to-be-treated slurry, wherein the soil remediation agent isthe soil remediation improver; and the to-be-treated slurry is stacked and maintained for 7-30 days. The soil remediation improver disclosed by the invention is low in cost, good in heavy metal solidification and stabilization effects and suitable for large-scale application. The soil remediation improvement method is simple to operate and good in remediation effect.
本发明公开了一种土壤修复改良剂及土壤修复改良方法，属于重金属污染治理技术领域。本发明的土壤修复改良剂由包括如下重量份数的原料制成：水泥25‑35份，粉煤灰35‑55份，生石灰5‑12份，水玻璃7‑15份，混酸2‑7份；所述混酸由浓硫酸和浓硝酸以体积比为（16‑20）:1配制而成。本发明的土壤修复改良方法包括如下步骤：将待修复土壤破碎、筛分，得到土壤预处理料；将土壤预处理料与水、土壤修复剂均匀混合，得到待处理浆料；所述土壤修复剂为上述的土壤修复改良剂；将待处理浆料堆放养护7‑30天。本发明的土壤修复改良剂成本低，对重金属的固化、稳定化效果好，适合于大规模应用。本发明的土壤修复改良方法操作简单、修复效果好。
Soil remediation improver and soil remediation improvement method
一种土壤修复改良剂及土壤修复改良方法
GONG WEIZHENG (author) / LIU CHAO (author) / XING SHUYUAN (author) / ZHAO YONGCHAO (author) / XIA JIN (author) / WU JIEYAN (author) / HU YONGMING (author) / YI SHENGNAN (author) / XUE HAIFENG (author) / HONG MENGYUE (author)
2020-04-21
Patent
Electronic Resource
Chinese
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