The emphases are addressed on the classification, processing and characteristics of the activated sludge, especially the characteristic of the variable structure.
讨论活性污泥的分类、工业处理及特性，尤其是结构变化特性及其对污泥处理的重要意义；
A coupling bioreactor based on the flow separate and multi-phase reaction principle was designed to study on the wastewater treatment effects and the characteristic of the sludge reduction.
基于流离、多相生物反应原理开发了耦合生物反应器，探讨了耦合生物反应器及其污水处理、污泥减量特性。
An iron oxide sludge smash characteristic was discussed by grinding experiment and the test of methods about increasing comminution efficiency was taken.
针对一种氧化铁渣进行研磨试验，分析讨论了它的研磨特性，并对提高研磨效率的途径进行了探索试验。
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