The pilotprocess both achieved positive results, there are also many problems.
试点过程中既取得了积极效果，也存在诸多问题。
2
This paper described a pilotprocess of polymerization of acrylamide in middle concentration (30 ~ 35% by weight) aqueous solution with the additive disodium EDTA.
The hydraulic parameters in coagulation, flocculation and flotation units of DAF pilotprocess were systematically investigated when employing flocculants AS and PAC respectively.