The chemical properties of fly ash and FAZ (synthesized zeolite made from fly ash) were studied by XRD. The results from this study showed that quartz and mullite were the main composition of fly ash and FAZ was a single-kind zeolite with residual unreacted fly ash. Moreover, the effects of FAZ diameter, dosage and contact time on the removal SO42- from monosodium glutamate wastewater were analyzed. And L9(34) orthogonal table were made in order to determine the optimal factor level combination in the removal of SO42-. It was strongly suggested that the removal ratio of SO42- could reach 67.3% when FAZ dosage was 20 g/L, contact adsorption time was 60 minutes and adsorption temperature was room-temperature, and it was appropriate to select 100 mesh as the removal ratio and economy were comprehensively considered.
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机译：用XRD研究了粉煤灰和FAZ（由粉煤灰合成的沸石）的化学性质。这项研究的结果表明，石英和莫来石是粉煤灰的主要成分，而FAZ是一种单一类型的沸石，残留有未反应的粉煤灰。此外，分析了FAZ直径，剂量和接触时间对从味精废水中去除SO42-的影响。并制作了L9（34）正交表，以确定去除SO42-时的最佳因子水平组合。强烈建议当FAZ用量为20 g / L，接触吸附时间为60分钟，吸附温度为室温时，SO42-的去除率可达到67.3％，宜选择100目作为去除率。全面考虑了经济。
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