Effects of Temperature on Rate of Floc Formation

摘要: IS common knowledge among operators of water treatment plants the rapid filter type that coagulated going to filters is usually less well prepared for in winter than summer. The settled effluent from basins contains more and finer floe color winter; coagulant required produce a satisfactory effluent. These difficulties are ascribed low temperature winter, specifically effect on coagulation. coagulation (or flocculation) process per se mechanism by which small colloidal or suspended particles coalesce form larger particles. To be value sewage treatment, this must continue until large enough settle effectively. function mixing chamber flocculator floe, but flocculation nevertheless continues slowly after reaches settling basin. primary basin, many still referred as not settling. complete conditioning twofold therefore, consisting both known. For within range validity Stokes' law (and includes nearly all particles, except grit, dealt with settling), velocity varies inversely viscosity water: Hence, other things being same, longer period when high, summer, same quality water. example, at 35°F. 73 cent