Name: GABRIEL DALBERTO BELOTTI JUNIOR
Publication date: 13/04/2016
Advisor:
Name |
Role |
|---|---|
| ROSANE HEIN DE CAMPOS | Advisor * |
Examining board:
| Name |
Role |
|---|---|
| ROSANE HEIN DE CAMPOS | Advisor * |
Summary: This paper presents the study of light gray water component of a portion of the
wastewater through anaerobic reactor with moving bed biofilm membranes (MBBMR)
followed by microfiltration membrane pilot scale. Therefore, this research aimed to
study the influence of hydraulic retention time (HRT) of the reactor in the performance
of the treatment light gray water. The MBBMR was composed of a reactor 20 m2 filled
with support media type random rings high density polypropylene, followed by a
microfiltration membrane of the external type with hollow fiber, tangential flow filtration,
operating with different HDT (8h and 4h). The biggest MBBMR removal efficiencies
were during reactor operation with the TDH 8 am, with the average global removal of
78.2%. With TDH 4h was no reduction in overall efficiency, the average global removal
of 69%. The final effluent met the necessary quality for reuse, following the
recommendations in the standards of Germany and Canada at 100% of the samples
for the BOD and TSS parameters, in TDH 8h. However, the effluent did not meet the
ceiling established by these standards for turbidity and total coliform parameters. In
relation to service the Brazilian standard with this TDH, the turbidity parameter showed
48% of the samples with the value below the set for reuse in toilets, but all samples did
not meet the threshold for total coliforms. For MBBR operating at 4pm TDH for the
DBO parameter all samples met the standard limit of Canada and 60% of the samples
met the standards of Florida, Australia and Germany. For the SST parameter, 80% of
the samples were below the value set in the standard of Canada and Germany.
However, turbidity and total coliform parameters did not meet the limits of international
and Brazilian standards for reuse in sanitary bowl with TDH 4h. Thus, the best results
achieved with the system studied was the highest HDT for the reactor.
