The Navalis Orion® Wastewaterwater Treatment System has been tested for effluent quality and reliability. The system provides virtually untended operation day-after-day.

The following table provides a summary of test results with a comparison to existing and proposed revisions to regulatory limits.
Point
 BOD5
(mg/l)		 COD
(mg/l)		 TSS
(mg/l)		 Turbidity
(NTU)		 Coliform
(CFU/100 ml)		 pH
Test
Influent		 500 1,100 1,500 >1,000 >36,600 7.2
Orion
Effluent		 <5 20 BD <2 BD 7.2
Regulatory Limits
USCG
33CFR159		 N/A N/A 150 N/A 200 N/A
Alaska Cruise Ship 30 N/A 30 N/A 20 6-9
IMO
MEPC.2(IV)		 50 N/A 100 N/A 250 N/A
IMO
MEPC.159(55)		 25 125 35 N/A 100 6-8.5

BD = Below Detect

The influent used for the system testing was derived from municipal sewage through blending to achieve a representative concentration consistent with the "Generic Specification for Liquid Waste Treatment (LWT) on Cruise Vessels," August 2003.

This chart provides nominal constituent strength values as tested from the Navalis Orion® Wastewater System, with comparison to the Alaska Standard . Ask your Navalis representative for current values and details.


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