in the process of cleaning coffee, do not use hard brush scrub, but also to avoid the use of strong acid, alkali cleaning agent, so as to avoid scratching the surface of damaged coffee cup.
alkaline waste is a kind of highly toxic and hazardous alkaline wastewater from oil refinery after alkali cleaning of oil products, which contains a great deal of sulfide, phenol and oil pollutants.
炼油堿渣是石油炼制过程中油品堿洗精制时产生的一种含有大量硫化物、酚类和石油类等污染物的堿性废液。
the emulsion generated in the process of alkali cleaning of diesel oil is very tolerant towards diesel oil and can result in serious emulsification.
在柴油堿洗过程中,形成的乳化物对柴油有巨大包容性,导致严重乳化的发生。
by means of gc ms analysis and model compounds, the reason of decrease in the induction period of rfcc gasoline during alkali cleaning was investigated.