By comparing backgouging of plasma arc with carbon arc to the welded joint of 13-5 martensitic stainless steel, the backgouging of plasma arc is proved feasible for the full penetration weld.
The research shows that the carbon absorption rate can be up to 90% approximately by using the pretreated carbon powder and precast block penetration method.
研究表明，经过预处理的碳粉，采用预制块压入法可使碳的吸收率稳定在90%左右。
3
It is introduced that the removal mode of organics by biological activated carbon (BAC) process, and the characristic penetration curves of different water quality of influent.