Multistage bleaching Q-Pa-P-P is superior to Q-Pa-P-Pa, and more superior to Q-P-Pa-P ( Q stage condition: 0.4% DTPA, normal temperature, 30? min).
多段漂白的Q Pa P P程序优于Q Pa P Pa,更优于Q P Pa P(Q段工艺条件:DTPA用量0.4%,常温,时间30min)。
In order to reduce the investment, running cost and generation amount of AOX, a two stage short sequence process has been developed on the basis of multistage bleaching.
为降低投资、运行费用和AOX的生成量,在多段漂白的基础上发展了两段短流程漂白。
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