6
required in Section 5.2.4 of the G9 document (IMO, 2008). Statistical analyses were performed
using ToxCalc statistical software (TSS, 2006) according to methods from USEPA (2002) and
ASTM (2006) guidance documents.
5.
Summary of Results
Mechanical Performance:
During testing, the BIO-SEA BWMS experienced no operational issues or mechanical
errors resulting in the termination of a test trial. It should be noted that this system was set up to
run at a maximum flow rate of 100 m
3
/
hr (with exceptions described in the trial summaries
below). The complete BIO-SEA system ETV
Operating and Maintenance (O&M) Evaluation
and Performance Verification Checklist
is available upon request. Below are the mechanical
summaries of each test including test plan changes:
•
24
July 2012. Commissioning and O&M. The BIO-SEA commissioning
including augmented challenge water was successfully completed at a flow rate of
100
m
3
/
hr at 1100. The BIO-SEA engineer emailed MERC to confirm success.
BIO-SEA used one UV reactor. Three (3) hours of O&M testing completed at 100
m
3
/
hr. No mechanical or operational issues affected the outcome.
•
26 - 31
July 2012. Trial BS-01, including augmented challenge water (target TSS
= 50 mg/L) was completed at a flow rate of 100 m
3
/
hr. Final tank volumes:
treated = 152 m
3
;
control = 155 m
3
.
BIO-SEA used one UV reactor. The system
utilized both filter and UV treatment upon uptake and UV-only treatment upon
discharge. No mechanical or operational issues affected the outcome.
•
1
August 2012. O&M Testing. Five (5) hours of O&M testing at a flow rate of
100
m
3
/
hr. No mechanical or operational issues affected the outcome.
•
2 - 7
August 2012. Trial BS-02, including augmented challenge water (reduced
TSS target = 25 mg/L) was completed at a flow rate of 100 m
3
/
hr. Final tank
volumes: treated = 155 m
3
;
control = 153 m
3
.
BIO-SEA changed to a different
UV lamp. The system utilized both filter and UV treatment upon uptake and UV-
only treatment upon discharge. No mechanical or operational issues affected the
outcome.
•
9 - 14
August 2012. Trial BS-03 was completed at an increased flow rate of 150
m
3
/
hr. The ambient water was not augmented. Final tank volumes: treated = 205
m
3
;
control = 204 m
3
.
BIO-SEA increased the UV reactors used from one (1) to
two (2). The system utilized both filter and UV treatment upon uptake and UV-
only treatment upon discharge. No mechanical or operational issues affected the
outcome.
•
16 - 21
August 2012. Trial BS-04 was completed at the increased flow rate of
150
m
3
/
hr. The ambient water was not augmented. Final tank volumes: treated =
205
m
3
;
control = 204 m
3
.
BIO-SEA continued using two (2) UV reactors. The
system utilized both filter and UV treatment upon uptake and UV-only treatment
upon discharge. No mechanical or operational issues affecting the outcome.
•
22
August 2012. BIO-SEA BWMS trials terminated.