
? 泡沫冲洗技术突破:SDS表面活性剂+泡沫技术显著提升镉污染沙土修复效率:
⬆️ 镉去除率达70%(传统批次/无泡沫法仅10%)
? 泡沫核心作用:
消除沟流效应,提升溶液分布均匀性
促进SDS渗透至沙粒孔隙(SEM验证)
⚙️ 最优参数:2倍临界胶束浓度SDS溶液,流速10 ml/min,氮气20 ml/min
? 传统局限:
批次法:能耗高、耗时长
无泡沫柱冲洗:效率波动(沟流导致)
? 应用价值:减少表面活性剂用量和处理时间,实现高效土壤修复
《南非化学工程杂志》(2023)
? Foam Flushing Breakthrough: SDS surfactant + foam tech boosts Cd-contaminated sand remediation:
⬆️ 70% Cd removal (vs. 10% in batch/foamless methods)
? Foam\'s role:
Eliminates channeling, enhances solution distribution
Promotes SDS penetration into sand pores (SEM-confirmed)
⚙️ Optimal: 2x CMC SDS, 10 ml/min flow, 20 ml/min N₂ gas
? Traditional limits:
Batch: High energy/time cost
Foamless column: Efficiency fluctuation (channeling)
? Value: Reduces surfactant use & treatment time for cost-effective soil remediation
S. Afr. J. Chem. Eng. (2023)
⬆️ 镉去除率达70%(传统批次/无泡沫法仅10%)
? 泡沫核心作用:
消除沟流效应,提升溶液分布均匀性
促进SDS渗透至沙粒孔隙(SEM验证)
⚙️ 最优参数:2倍临界胶束浓度SDS溶液,流速10 ml/min,氮气20 ml/min
? 传统局限:
批次法:能耗高、耗时长
无泡沫柱冲洗:效率波动(沟流导致)
? 应用价值:减少表面活性剂用量和处理时间,实现高效土壤修复
《南非化学工程杂志》(2023)
? Foam Flushing Breakthrough: SDS surfactant + foam tech boosts Cd-contaminated sand remediation:
⬆️ 70% Cd removal (vs. 10% in batch/foamless methods)
? Foam\'s role:
Eliminates channeling, enhances solution distribution
Promotes SDS penetration into sand pores (SEM-confirmed)
⚙️ Optimal: 2x CMC SDS, 10 ml/min flow, 20 ml/min N₂ gas
? Traditional limits:
Batch: High energy/time cost
Foamless column: Efficiency fluctuation (channeling)
? Value: Reduces surfactant use & treatment time for cost-effective soil remediation
S. Afr. J. Chem. Eng. (2023)
