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Sludge Bulking Control with Ozone
Author(s) -
LEEUWEN J.,
PRETORIUS W. A.
Publication year - 1988
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.1988.tb01276.x
Subject(s) - aeration , ozone , sludge bulking , pulp and paper industry , environmental science , chlorine , aerated lagoon , activated sludge , environmental engineering , chemistry , waste management , environmental chemistry , sewage treatment , engineering , organic chemistry
O zonation was studied as a non‐specific means of sludge bulking control. Direct ozonation at 6 g/m 3 influent, i.e. 4 gO 3 /kg sludge per day into the aeration basin of a 150 l/d Phoredox system controlled the growth of filamentous organisms and improved the settleability of the sludge. Bulking control with ozone is not significantly more expensive than with chlorine or with larger settler capacity.