在混凝沉淀处理海水的过程中，预投加高铁酸钾，通过烧杯试验考察了其助凝效果。

Potassium ferrate was added during the treatment of seawater by coagulation and sedimentation processes, and the coagulation aid effect was investigated by a jar test.

youdao

制革污水采用预曝气处理后，可大大提高初沉池沉淀效果。

By pre aeration in tanyard wastewater, the effect of primary settling improves obviously.

youdao

在时效过程中S’析出相、晶界析出相和无沉淀析出带的变化是影响合金预拉伸厚板腐蚀行为的主因。

The effect of aging treatment on corrosion sensitivity is closely related to S' phase, the phase precipitated in grain boundary and precipitate-free zone.

youdao