对活性或直接大红、深棕、黑色系固色作用尤为突出。

For active or direct red, dark brown, black, Department of fixing the role is particularly prominent.

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以膨胀石墨为吸附剂，对直接大红4b、甲基橙染料废水进行了吸附脱色研究，探讨了影响吸附的因素。

And it was used as adsorbent to decolor wastewater containing direct red 4b and methyl orange. The factors affecting adsorption were studied.

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同时以酸性红g、直接枣红和直接大红(直接染料)及亚甲基蓝为对象模拟染料废水进行催化降解实验。

Furthermore, samples, as catalysis, were used to degrade simulation dye effluents, such as solutions of Acid Red g, Direct Bordeaux, Direct Red and Methylene Blue.

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