图 1 地质聚合物固定重金属的机理[45]
Figure 1. Mechanism of geopolymer fixation of heavy metals[45]
图 2 有机螯合剂稳定重金属的机理
Figure 2. Mechanism of heavy metal stabilization by organic chelating agent
图 3 微生物诱导矿物沉淀的微观机制[86]
Figure 3. Microscopic mechanism of mineral precipitation induced by microorganisms[86]