concept, liquid flow (or hydraulic rate in the case of TFs) is not a fundamental process design factor. ... However, these methods are inadequate if high performance is required or natural draft forces are low. ... The aquot;ten states standardsaquot; require that inlet openings into the rock filter underdrains have an unsubmerged grossanbsp;...
|Title||:||ASCE Manuals and Reports on Engineering Practice|
|Author||:||Water Environment Federation. Facilities Development Subcommittee, American Society of Civil Engineers. Committee on Water Pollution Management|