The conventional geopolymer usually has bad wastewater treatment ability. How to maximum improve the wastewater treatment ability of geopolymer become a hot topic. The synergistic effects of iron (Fe) and biochar on the circulation fluidized bed combustion fly-ash and bottom ash-based geopolymer (BFBAG) in the removal of dyes and toxic heavy metals were investigated. The hydration numerical models of BFBAG and immobilization mechanisms of heavy metals were proposed at first time. The removal efficiency (RE) of geopolymer with and without Fe is 68% and 84%, respectively, and the RE difference of geopolymer with Fe and biochar is 87%. It indicated that Fe and Biochar had synergistic catalytic effects when used in geopolymer for wastewater treatment applications. During the geopolymer production/formation process, whilst Fe enhanced the removal efficiency of the methylene blue dye, Biochar was concurrently instrumental in enhancing the immobilization efficiency and removal of the toxic heavy metals from the wastewater.

常规地质聚合物通常具有较差的废水处理能力。如何最大限度地提高地聚合物对废水的处理能力成为一个热门话题。研究了铁 (Fe) 和生物炭对循环流化床燃烧粉煤灰和底灰基地质聚合物 (BFBAG) 在去除染料和有毒重金属方面的协同作用。首次提出了BFBAG的水化数值模型和重金属的固定机制。含铁和不含铁的地质聚合物的去除效率（RE）分别为68%和84%，含铁和生物炭的地质聚合物的RE差异为87%。这表明 Fe 和 Biochar 在用于废水处理应用的地质聚合物中具有协同催化作用。在地质聚合物生产/形成过程中，