TY - JOUR
AU - 
AB - Sewage treatment ultimately culminates in the concentration of the solid phase. Sludge are separated mainly in primary or secondary decanters. Even in biological treatment, where biological degradation of organic matter actually occurs, there is the separation of excess sludge concentrated in the bottom of the secondary settlers of activated sludge systems or biological filters. In fact, the production of sludge is an important differential in the choice of the treatment system. While purely aerobic systems such as activated sludge or high-rate biological filters can produce 0.6–0.8 kgSS/kgBOD applied, sludge production in an upflow anaerobic sludge blanket (UASB) reactor is only about 0.2 kgSS/kgCOD applied. Even the mixed anaerobic/aerobic system leads to less sludge production than that of an exclusively aerobic system. This advantage is very important nowadays, especially since, besides reducing the treatment needs, the difficulties with the final disposal of the sludge are usually very large. Keywords: sewage sludge, densification, digestion, anaerobic sludge digestors, dimensioning 1. Introduction At first, the main concern in relation to sewage treatment is to solve the problem of the liquid phase, leaving in the background the solution of the problem of the sludge generated in the treatment of this liquid phase. When there 
TI - Composition, Production, and Treatment of Sewage Sludge
JF - Sustainable Sewage Sludge Management and Resource Efficiency
DO - 10.5772/intechopen.91665
DA - 2020-09-09
UR - https://www.deepdyve.com/lp/unpaywall/composition-production-and-treatment-of-sewage-sludge-ExVIwtQp3F
DP - DeepDyve
ER -