摘要
A cationic polyelectrolyte with a high density charge, its average molecular weight was 2.60×10 6 and cationic character reached 45%, adsorbed on the particles with the adsorption pattern of static electricity gravitation between the cationic groups and the clay surface with negative charges. It could be neutralize the ζ potential of clay particle surface to 0 mV and keep with 0 mV, and make the capillary suction time of oily sludge reduce to 100～200 s and finally make it chemical destabilization, but also make the fine grains(diameter under 20 μm) be effectively flocculated and swept away. The flocculating reaction kinetics of cationic polyelectrolyte to solid particles of oily sludge was made certain as second order reactions.
A cationic polyelectrolyte with a high density charge, its average molecular weight was 2.60×10 6 and cationic character reached 45%, adsorbed on the particles with the adsorption pattern of static electricity gravitation between the cationic groups and the clay surface with negative charges. It could be neutralize the ζ potential of clay particle surface to 0 mV and keep with 0 mV, and make the capillary suction time of oily sludge reduce to 100～200 s and finally make it chemical destabilization, but also make the fine grains(diameter under 20 μm) be effectively flocculated and swept away. The flocculating reaction kinetics of cationic polyelectrolyte to solid particles of oily sludge was made certain as second order reactions.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第11期1790-1792,共3页
Chemical Journal of Chinese Universities
基金
黑龙江省自然科学基金
关键词
絮凝剂
阳离子聚电解质
油污泥
机理
Cationic polyelectrolyte, Oily sludge, Flocculation, Mechanism
