Premium
Activated sludge systems with biomass particle support structures
Author(s) -
Nicol JeanPaul,
Benefield Larry D.,
Wetzel Edward D.,
Heidman James A.
Publication year - 1988
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260310709
Subject(s) - nitrification , biomass (ecology) , activated sludge , particle (ecology) , transient (computer programming) , environmental science , hydraulic retention time , activated carbon , environmental engineering , waste management , chemistry , sewage treatment , engineering , ecology , nitrogen , computer science , biology , organic chemistry , adsorption , operating system
A mathematical model was developed to simulate the operation of an activated sludge system with biomass support particles. Based on the results of this simulation study, it would appear that a system with biomass particle supports offers several advantages not offered by conventional systems. These include the ability to resist failure from large hydraulic surges; stable nitrification under transient inhibitory conditions resulting from temperature changes, hydraulic surges, and/or toxic chemicals; and the ability to establish stable operating conditions with respect to both carbon oxidation and nitrification at short hydraulic retention times and low sludge ages.