Type Selection of Grit Clarifier without Primary Sedimentation Tank[J]. Journal of Civil and Environmental Engineering, 2005, 27(2): 61-64. DOI: 10.11835/j.issn.1674-4764.2005.02.014.
In view of existing features of activated sludge process without primary sedimentation tank and the requirements on grit removing sedimentation tank
in this paper
two types of grit clarifier-horizontal and whirling one are suggested with consideration of grit removal efficiency for fine particle size during its design.Then
according to the sedimentation theory
the principle of grit removal
control of key technical parameters and type choice of grit discharge equipment are analyzed.It can serve as reference for the design of grit clarifier.