水泥窑协同处置、表层阻隔技术联合应用修复砷污染场地

Joint application of surface barrier technology in cement kiln co-disposal to repair arsenic contaminated site

某场地调查及风险评估表明,场地内土壤污染物为重金属砷,砷的污染深度为0;8m。本地块砷的污染面积大,污染深度深,传统的清挖修复技术施工难度及成本均较大。结合本地块后期场地规划开发利用情况,本项目采用浅层砷污染土壤水泥窑协同处置,深层砷污染土壤表层阻隔技术联合应用修复治理。

The investigation and risk assessment of a site showed that the soil pollutant was heavy metal arsenic, and the depth of arsenic pollution was 0;8 m Arsenic pollution in the local block is large in area and deep in depth, and the construction difficulty and cost of the traditional cleaning and remediation technology are both large. Considering the later site planning, development and utilization of the local block, the project adopts the cement kiln for coordinated disposal of shallow arsenic-contaminated soil and the barrier technology of deep arsenic-contaminated soil surface for joint application of remediation and treatment.