TY  - JOUR
T1  - Performance of a Packed Reactor with <I>Opuntia imbricata</I> for Municipal Wastewater Treatment
AU - , F. May-Esquivel AU - , L.J. Rios-Gonzalez AU - , Y. Garza-Garcia AU - , J. Rodriguez Martinez 
JO  - Environmental Research Journal
VL  - 2
IS  - 5
SP  - 238
EP  - 245
PY  - 2008
DA  - 2001/08/19
SN  - 1994-5396
DO  - erj.2008.238.245
UR  - https://makhillpublications.co/view-article.php?doi=erj.2008.238.245
KW  - Packed reactor
KW  -natural support
KW  -biofilms
KW  -oxygen transfer
KW  -COD removal
KW  -municipal wastewater
AB  - The oxygen transfer rate and the performance of both a packed reactor with a natural support of <I>Opuntia imbricata </I>represented as (R1) and a reactor without support represented as (R2) were compared in the treatment of municipal wastewater. The results demonstrated that the dissolved oxygen (DO) and oxygen transfer rate (K<SUB>L</SUB>a) were affected positively by air flow rate when increased from 0-2 lpm, mainly in R1. COD removal efficiency was affected by decreasing hydraulic retention time from 30-10 h in both reactors, but highly significant in R2. The R1 reactor showed higher COD removal rate than R2, when the Organic Loading Rate (OLR) was increased from 0.44-1.32 kg COD m <SUP>3</SUP> day <SUP>1</SUP>. Biomass concentration after 100 day of continuous operation was 2.49 and 12.35 g VSS L <SUP>1</SUP> for R1 and R2, respectively. The higher oxygen transfer rate, concentration  of  active  biomass  and  performance  of  R1 were result of a greater specific surface area of <I>Opuntia imbricata</I>.
ER  -