초록 ▼

A wastewater treatment system for use on marine vessels or land-based applications where wastewater is separated into two separate sources as graywater and raw sewage (blackwater). For blackwater, the treatment system incorporates five general phases (or zones): (1) screening, (2) clarifying, (3) fi

A wastewater treatment system for use on marine vessels or land-based applications where wastewater is separated into two separate sources as graywater and raw sewage (blackwater). For blackwater, the treatment system incorporates five general phases (or zones): (1) screening, (2) clarifying, (3) filtering, (4) advanced oxidation, and (5) sludge reducing. For graywater, the treatment system incorporates three general phases (or zones): (1) screening (2) filtering, and (3) advanced oxidation. Each train of the treatment system (blackwater and graywater) can operate as a stand-alone system or can be assimilated into an integrated treatment train for both graywater and blackwater. This system is particularly useful in today's restrictive regulatory environment.

대표청구항 ▼

What is claimed is: 1. A method for treating wastewater comprising the acts (steps) of: treating a first influent in a blackwater treatment train, the blackwater treatment train comprising the acts (steps) of: screening the first influent in a blackwater screening zone, clarifying a blackwater scre

What is claimed is: 1. A method for treating wastewater comprising the acts (steps) of: treating a first influent in a blackwater treatment train, the blackwater treatment train comprising the acts (steps) of: screening the first influent in a blackwater screening zone, clarifying a blackwater screening zone effluent in a clarifying zone, reducing sludge from the clarifying zone in a sludge reduction zone, filtering clarification zone effluent in a blackwater filtration zone, advanced oxidation of a blackwater filtration zone effluent (permeate) in a blackwater advanced oxidation zone, and discharging a blackwater advanced oxidation zone effluent, treating a second influent in a graywater treatment train, the graywater treatment train comprising the acts (steps) of: screening the second influent in a graywater screening zone, treating screened solids from the graywater screening zone in the sludge reduction zone, filtering a graywater screening zone effluent in a graywater filtration zone, treating filtered solids (retentate) from the graywater filtration zone in the sludge reduction zone, advanced oxidation of a graywater filtration zone effluent (permeate) in a graywater advanced oxidation zone, and reusing an advanced oxidation zone effluent. 2. The method for treating wastewater of claim 1, wherein the blackwater advanced oxidation zone comprises a blackwater stirred reactor. 3. The method for treating wastewater of claim 2, the blackwater advanced oxidation zone further comprising the acts (steps) of: infusing a clarification zone effluent with ozone prior to entering the blackwater stirred reactor, and oxidizing the ozonated clarification zone effluent in the blackwater stirred reactor. 4. The method for treating wastewater of claim 1, wherein the blackwater advanced oxidation zone comprises the act (step) of disinfecting with ultraviolet light. 5. The method of claim 1, the sludge reduction zone comprising the acts (steps) of: adding a graywater filtration zone effluent (retentate), oxidizing the sludge with ozone, removing an oxidized sludge for disposal, and sending a sludge reduction zone effluent to the blackwater clarifying zone. 6. The method for treating wastewater of claim 1 wherein the graywater treatment train does not commingle with the blackwater treatment train. 7. The method for treating wastewater of claim 1 wherein the first influent comprises graywater from kitchen operations. 8. The method for treating wastewater of claim 1, further comprising the act (step) of directing a second graywater filtration zone effluent (permeate) to the blackwater treatment train. 9. The method for treating wastewater of claim 1, the graywater filtration zone comprises the act (step) of ultrafiltration. 10. The method for treating wastewater of claim 1, the graywater advanced oxidation zone comprises a graywater stirred reactor. 11. The method for treating wastewater of claim 10, the graywater advanced oxidation zone comprising the acts (steps) of: infusing the graywater filtration zone effluent (permeate) with ozone prior to entering the graywater stirred reactor, oxidizing the graywater filtration zone effluent (permeate) in the graywater stirred reactor. 12. The method for treating wastewater of claim 1, the graywater advanced oxidation zone comprising the act (step) of disinfecting with ultraviolet light in a disinfection zone. 13. The method for treating wastewater of claim 1, further comprising the act (step) of directing a second graywater advanced oxidation zone effluent to the clarifying zone. 14. The method for treating wastewater of claim 1, further comprising the act (step) of discharging a third graywater advanced oxidation zone effluent.