|
KMID : 1024519990080030363
|
|
Journal of the Environmental Sciences
1999 Volume.8 No. 3 p.363 ~ p.369
|
|
|
Studies on the surface charge and coagulation characteristics of suspended particles in the aqueous phase
|
|
Park Sang-Won
Kim Sung-Kuk
Hong Dae-Il
|
|
|
Abstract
|
|
|
|
This study aimed to elucidate the relationship between theoretical parameters affecting the coagulation process and the real coagulation phenomenon applied to the dye wastewater. Emphasis was placed on the effective removal of the suspend particulates. Parameters studied in this study are pH, coagulant concentration and surface potential. Optimal dosages of coagulants by the measurement of the zeta potential at lower then are 5\times M of . The results were well agreeded with the separate Jar-test results. Emphasis was also placed on the relationship between water quality and the content of SS. It was found that the COD and DOC were reduced to 65% and 85%, respectively. The turbidity at the above condition was reduced from 300 NTU to 0~1 NTU. Efforts were made to clarify the behavior of the suspend solid as affecting the water quality. 12,000~13,000 particles/10mL in m size range particulates in the raw wastewater were reduced to 300 particle/10mL in the same range after treatment. This research has proposed the methodology to find out the optimal condition of coagulation for small scale wastewater treatment plant or chemical coagulation process.
|
|
|
KEYWORD
|
|
|
Coagulation, Zeta potential, Paticle size distribution
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|