Efficiency,effect factors,mechanism of removal anionic dyestuff were discussed in this paper with Mg~(2+) and Al~(3+) co-precipitation to synthesize LDH in-situ to treat acid scarlet GR.

• 以酸性大红GR为典型代表,初步研究了镁-铝盐水解共沉淀法即时合成层状双氢氧化物(LDH)处理阴离子型染料溶液的效果、影响因素和染料去除机理。