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Statements

Subject Item
n2:RIV%2F46747885%3A24620%2F13%3A%230000118%21RIV14-MSM-24620___
rdf:type
n11:Vysledek skos:Concept
rdfs:seeAlso
http://www.sciencedirect.com/science/article/pii/S0043135413002777
dcterms:description
The influence of industrial (pharmaceutical and chemical) wastewater composition on membrane bioreactor (MBR) performance was investigated in a pilot-scale installation. The study focussed on nitrification performance, which was evaluated based on influent and effluent parameters as well as batch nitrification rate tests. The industrial wastewater was pumped into the MBR in a mixture with municipal wastewater at constant flow rate. The loading of the MBR with industrial wastewater was increased stepwise from 0 to 75% share in the mixed influent to study the adaptation of nitrifying bacteria. Stable nitrification performance was observed until the content of industrial wastewater in the influent reached 40%, with effluent values of around 0.56 mg L-1 NH4-N and 98.3% ammonia removal. Breakdown of nitratation was observed at a 40% industrial wastewater dose and breakdown of nitritation at a 50% dose, respectively. However, after several months of adaptation, both processes recovered. No nitrification was observed when the industrial wastewater share exceeded 50%. Adaptation of nitrifying bacteria in the MBR was also confirmed by results of kinetic tests. The inhibition effect of the concentrated industrial wastewater to the MBR sludge decreased substantially after several months of exposure, while the inhibition of referential activated sludge remained constant. The influence of industrial (pharmaceutical and chemical) wastewater composition on membrane bioreactor (MBR) performance was investigated in a pilot-scale installation. The study focussed on nitrification performance, which was evaluated based on influent and effluent parameters as well as batch nitrification rate tests. The industrial wastewater was pumped into the MBR in a mixture with municipal wastewater at constant flow rate. The loading of the MBR with industrial wastewater was increased stepwise from 0 to 75% share in the mixed influent to study the adaptation of nitrifying bacteria. Stable nitrification performance was observed until the content of industrial wastewater in the influent reached 40%, with effluent values of around 0.56 mg L-1 NH4-N and 98.3% ammonia removal. Breakdown of nitratation was observed at a 40% industrial wastewater dose and breakdown of nitritation at a 50% dose, respectively. However, after several months of adaptation, both processes recovered. No nitrification was observed when the industrial wastewater share exceeded 50%. Adaptation of nitrifying bacteria in the MBR was also confirmed by results of kinetic tests. The inhibition effect of the concentrated industrial wastewater to the MBR sludge decreased substantially after several months of exposure, while the inhibition of referential activated sludge remained constant.
dcterms:title
Nitrification performance in a membrane bioreactor treating industrial wastewater Nitrification performance in a membrane bioreactor treating industrial wastewater
skos:prefLabel
Nitrification performance in a membrane bioreactor treating industrial wastewater Nitrification performance in a membrane bioreactor treating industrial wastewater
skos:notation
RIV/46747885:24620/13:#0000118!RIV14-MSM-24620___
n11:predkladatel
n17:orjk%3A24620
n6:aktivita
n16:N n16:P
n6:aktivity
N, P(EE2.3.30.0024)
n6:cisloPeriodika
47
n6:dodaniDat
n9:2014
n6:domaciTvurceVysledku
n10:4867319
n6:druhVysledku
n18:J
n6:duvernostUdaju
n13:S
n6:entitaPredkladatele
n15:predkladatel
n6:idSjednocenehoVysledku
91818
n6:idVysledku
RIV/46747885:24620/13:#0000118
n6:jazykVysledku
n20:eng
n6:klicovaSlova
Membrane bioreactor, Industrial wastewater, Activated sludge, Nitrification, Adaptation, Inhibition
n6:klicoveSlovo
n7:Inhibition n7:Nitrification n7:Membrane%20bioreactor n7:Activated%20sludge n7:Industrial%20wastewater n7:Adaptation
n6:kodStatuVydavatele
BE - Belgické království
n6:kontrolniKodProRIV
[D1ECB803ACD8]
n6:nazevZdroje
Water Research
n6:obor
n14:DJ
n6:pocetDomacichTvurcuVysledku
1
n6:pocetTvurcuVysledku
4
n6:projekt
n8:EE2.3.30.0024
n6:rokUplatneniVysledku
n9:2013
n6:svazekPeriodika
13
n6:tvurceVysledku
Dvořák, Lukáš
s:issn
0043-1354
s:numberOfPages
10
n21:doi
10.1016/j.watres.2013.03.053
n19:organizacniJednotka
24620