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Relationship between bulking and physicochemical–biological properties of activated sludges
Author(s) -
Beccari M.,
Mappelli P.,
Tandoi V.
Publication year - 1980
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.260220506
Subject(s) - gravimetric analysis , activated sludge , biopolymer , chemistry , pulp and paper industry , volume (thermodynamics) , polymer , biochemical engineering , chemical engineering , environmental science , environmental engineering , sewage treatment , organic chemistry , thermodynamics , engineering , physics
Research into bulking in laboratory‐scale activated‐sludge plants are reported upon. A correlation between sludge volume index (SVI) and biopolymer content (exocellular polymer, ECP) has been determined or sludge obtained under various operating conditions and with different chemical and physical characteristics. This paper interprets that correlation. A method for ECP determination that is quicker and just as precise as the gravimetric one and which enables this parameter to be used not only to interpret bioflocculation mechanisms but also as a parameter for evaluating optimal plant operation is reported.