CRUISE WASTEWATER • HYDRAULIC LOAD • STP CAPACITY • HOLDING STORAGE • OPEX • LIFECYCLE COST
Cruise Ship Wastewater Treatment Capacity & Cost Calculator
Size a cruise-ship sewage and greywater treatment plant from people onboard and wastewater streams, test peak hydraulic capacity and holding-tank endurance, then estimate electricity, chemical, sludge, shore-reception and lifecycle treatment cost. Advanced mode separates individual wastewater streams, plant availability, peak-hour flow, storage, utility sources and retrofit economics.
↑Need stream-by-stream wastewater, peak-hour flow, sludge, utilities or lifecycle CAPEX? Click Advanced above.Simple gives a fast hydraulic-capacity and annual treatment-cost screen using exactly ten primary inputs.
CapacityAverage + peak flow
StorageHolding endurance
CostAnnual + $/m³
People & Wastewater Generation
Use average persons onboard and representative blackwater/greywater generation for the operating profile being screened.
L/person-day
L/person-day
Multiplier on average daily wastewater flow.
Treatment & Cost Basis
m³/day rated hydraulic capacity.
m³ available for wastewater storage.
USD/m³ treated, including utilities/chemicals if using a blended estimate.
USD/year.
↑Advanced builds the wastewater load from individual cruise-hotel streams.Capacity screening is hydraulic. Effluent-quality compliance still depends on the approved treatment plant, type-approval conditions, sampling and the vessel's actual discharge regime.
People & Operating Profile
Multiplier on average hourly flow.
Applied to required treatment capacity.
Wastewater Stream Register
Use only streams routed to the treatment/holding system being analyzed. Values are planning inputs, not regulatory generation factors.
| Use | Stream | Population basis | L/person-day | Treatment share % | Daily m³ |
|---|
Treatment Plant & Hydraulic Capacity
m³/day
m³/hour
%
m³/day; enter 0 if not applicable.
Holding & Sludge Storage
m³
%
hours
L sludge per m³ treated before dewatering.
%
m³
Treatment Utilities & Variable Cost
kWh/m³ treated
%
g/kWh
USD/MT
USD/kWh
USD/m³ treated
USD/m³ treated
USD/m³ treated
Sludge, Shore Reception & Service
USD/m³ sludge landed
% of annual generated wastewater
USD/m³ offloaded
USD/year
USD/year
USD/year
Retrofit / Replacement CAPEX
%
days
Lifecycle Assumptions
years
%
%/year
%/year
0 = none
Compliance / Operating Readiness Checks
Planning checks only. They do not certify MARPOL compliance or treatment-plant performance.
Stress Cases
| Use | Case | Persons | Flow | Availability | Cost |
|---|
Capacity screenENTER DATAHydraulic capacity + storage + cost
Average wastewater flow0 m³/day
Results update live as inputs change. Calculate records the structured result.
Peak-day utilization0%
Holding endurance0 h
Annual OPEX$0
Cost / person-day$0.00
Wastewater Flow & Treatment CapacityAverage flow, peak-day flow and required design capacity versus installed plant rating.
Average daily flow0
Peak-day flow0
Required design capacity0
Installed capacity0
Holding & Residual StorageWastewater holding endurance and, in Advanced, sludge-storage endurance.
Usable wastewater holding0 m³
Holding endurance0 h
Target interval-
Storage margin-
Annual Wastewater Cost StackVariable treatment, energy, chemicals, media, service, sludge and shore-reception cost as applicable.
Wastewater Stream ContributionAnnual treated volume contribution from the enabled Advanced stream register.
Lifecycle Treatment CostAnnual operating cost with escalation plus scheduled major renewal; line shows cumulative discounted lifecycle cost including installed CAPEX.
| Year | OPEX | Renewal | Discounted cost | Cumulative PV |
|---|
Population × Wastewater Generation SensitivityPeak-day treatment-capacity utilization. Green is below 80%, amber 80-100%, red above 100%.
Stress Case BoardEach case recalculates peak flow, required plant capacity and annual operating cost.
| Case | Peak m³/day | Capacity util. | Required m³/day | Annual OPEX |
|---|
This is a planning calculator. Hydraulic capacity does not demonstrate effluent-quality compliance. Use the vessel's approved sewage treatment plant documentation, Administration/class requirements, MARPOL Annex IV, applicable port/reception rules and the actual voyage discharge plan.