adsorption layer

The law of alumina depositing on the bag and HF adsorption by alumina layer are experimentally studied; the relationship between dust layer thickness vertical distribution and the average filtration velocity, dust content, filter time and the length of filter bag are fit with equations.

实验研究了氧化铝在布袋上沉积、布袋过滤压降和沉积层吸附HF的规律；拟合了粉尘沉积层厚度分布与平均过滤速度、粉尘含量、单位过滤面积加料量及布袋长度的关系式。

Firm adsorption layer can be formed on the cuttings surface by CETA;

CETA可在钻屑表面形成牢固吸附层；

The bentonite waterproof material is a kind of special waterproof material that depending on crystal layer adsorption water expansion blocking passageway of crevice water flow.

膨润土类防水材料是靠矿物材料的晶层间吸附水产生膨胀从而堵住缝隙处水流通道而防水的一种特殊防水材料。

Advantages of pore structure are developed, specific surface, strong adsorption, Yin force, chemical layer, stable performance.

优点是孔隙结构发达, 比表面积大, 吸附性能强, 库层阴力小, 化学性能稳定,易再生.

Now drink water defluoridation have some means, such as coagulant and sedimentation 、 filter layer adsorption process.

目前饮用水除氟的方法有很多, 如混凝沉淀法、滤层吸附法等.