针对我国目前污水处理厂污泥出路难、处置难的问题，作者提出了污泥采用集中式处理的新思路。
According to the problems in sewage treatment plants of our country, in which mud is difficult to treat, the paper proposes a new idea for sewage treatment, namely, mud is disposed centralizedly.
论文将实验和理论相结合，以哈尔滨文昌城市污水处理厂经细格栅过滤后的城市生活污水为对象，集中研究了它的对流换热特性。
This thesis, which combined theory and experiment, has studied the convection heat transfer on the urban sewage, which was from some sewage plant in Harbin and had been filtrated by the close grids.
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