2024-03-29T08:21:54+01:00
https://library.wur.nl/oai
oai:library.wur.nl:wurpubs/410159
2024-03-07
urn:nbn:nl:ui:32-410159
2024-03-07
urn:nbn:nl:ui:32-410159/mods
Grey water biodegradability
Abu Ghunmi
L.
314605800
0000-0003-3385-5489
0000000395369208
aut
Zeeman
G.
07149040X
0000000387219648
aut
Fayyad
M.
aut
van Lier
J.B.
091461901
0000000369415557
aut
text
info:eu-repo/semantics/article
2011
10.1007/s10532-010-9385-5
78650520637
000286504100016
en
Knowing the biodegradability characteristics of grey water constituents is imperative for a proper design and operation of a biological treatment system of grey water. This study characterizes the different COD fractions of dormitory grey water and investigates the effect of applying different conditions in the biodegradation test. The maximum aerobic and anaerobic biodegradability and conversion rate for the different COD fractions is determined. The results show that, on average, dormitory grey water COD fractions are 28% suspended, 32% colloidal and 40% dissolved. The studied factors incubation time, inoculum addition and temperature are influencing the determined biodegradability. The maximum biodegradability and biodegradation rate differ between different COD fractions, viz. CODss, CODcol and CODdiss. The dissolved COD fraction is characterised by the lowest degradation rate, both for anaerobic and aerobic conditions. The maximum biodegradability for aerobic and anaerobic conditions is 86 and 70% respectively, whereas the first order conversion rate constant, k20, is 0.119 and 0.005 day-1, respectively. The anaerobic and aerobic conversion rates in relation to temperature can be described by the Arrhenius relation, with temperature coefficients of 1.069 and 1.099, respectively
WIMEK
Environmental Technology
greywater treatment
microbial quality
operation
reactor
reuse
technologies
WIMEK
Milieutechnologie
Biodegradation
22
163
174
09239820
urn:nbn:nl:ui:32-410159/obj
2024-03-07
http://purl.org/eprint/accessRights/RestrictedAccess