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US 6,613,232 B2Granted
Mobile floating water treatment vessel
OwnerWarren Howard Chesner, James Melroseinventors
Life of this patent
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Abstract
A floating mobile self-contained membrane filtration treatment vessel that is suitable for use in the treatment of contaminated marine waters and shipboard wastes including, but not limited to, ballast water, graywater, and blackwater and excess dredge waters. The mobile treatment vessel preferably includes a micro or ultrafiltration membrane treatment system for micron and submicron sized particulate removal.
Claims40
A system for treating contaminated water comprising:
- a mobile, floating self contained treatment vessel having a means for transporting of contaminated water from a separate physical location;
- a collector on said mobile floating treatment vessel collecting said contaminated water directly from a contaminated water source at said separate physical location to said self-contained water treatment vessel, said separate physical location being spaced apart from said mobile floating treatment vessel,
- at least one membrane filtration system using at least one filter capable of filtering and removing solids,
- said at least one membrane filtration system receiving and treating said contaminated water to an uncontaminated state, and,
- an output directly discharging said treated uncontaminated water.
2 more elements
A method for treating contaminated water comprising the steps of:
- directing an intake stream of water to be treated into an apparatus comprised of a plurality of water tanks, pumps and filters;
- directing said intake stream to at least one pretreatment/equalization tank (41);
- analyzing said intake stream at said at least one pretreatment/equalization tank (41) for the presence of sufficient solids to warrant one of settling treatment and chemical additive treatment;
- and
- in the event that solids in said intake water stream warrant, treating said stream at said at least one pretreatment/equalization tank (41) with settling treatment and/or with chemical additive treatment;
- directing a further stream of said water from said at least one pretreatment / equalization tank (41) to at least one membrane filtration system (44) of an ultrafiltration system and a microfiltration system;
- intermittently and selectively backpulsing the flow of said water from said at least one membrane filtration system (44) into at least one backpulse reservoir (47, 48, 49) through suitable water conduits connecting said at least one backpulse reservoir (47, 48, 49) with said at least one membrane filtration system (44);
- treating said backpulsed water as needed with settling and/or with chemical additives to remove solids therefrom;
- and
- discharging water permeate that has been subjected to said at least one membrane filtration system directly into a marine aquatic environment.
7 more elements
Dependencies are inferred from the claim text.