Ballast Water Treatment Systems

A ballast water treatment system comprising:

• an intake screen adapted to receive ballast water from a body of water surrounding a ship comprising microorganisms;
• a ballast water intake pump coupled to the intake screen and adapted to draw ballast water in through the intake screen;
• a screen filter coupled to an outlet of the ballast water intake pump, the screen filter adapted to perform a screening of the ballast water output by the ballast water intake pump;
• a multi-cartridge filter system coupled to the screen filter and with one or more ballast tanks configured to be coupled to the ship;
• a ballast water dump pump coupled with the one or more ballast tanks and adapted to draw out ballast water stored in the one or more ballast tanks and discharge it back to the body of water surrounding the ship;
• wherein the multi-cartridge filter system comprises two or more cartridge filters comprising a quaternary organosilane coating produced from a quaternary ammonium organosilane reagent having the formula:
• A.sub.4-nSi(RNHaR.sup.1.sub.bZ).sub.n wherein A is a member selected from the group consisting of alkoxy radicals of 1 to 8 carbon atoms, alkylether alkoxy radicals of 2 to 10 carbon atoms, and alkyl radicals with 1 to 4 carbon atoms;
• R is a divalent hydrocarbon radical with 1 to 8 carbon atoms;
• R.sup.1 is a member selected from the group consisting of alkyl radicals with 1 to 12 carbon atoms, alkyl ether hydrocarbon radicals of 2 to 12 carbon atoms, hydroxy-containing alkyl radicals of 1 to 10 carbon atoms, and nitrogen-containing hydrocarbon radicals of 1 to 10 carbon atoms, wherein the nitrogen atom has three bonds;
• a is 0, 1, or 2;
• b is 1, 2 or 3;
• and the sum of a and b is 3;
• Z is a member selected from the group consisting of chloride, bromide, iodide, tosylate, hydroxide, sulfate, and phosphate;
• and n is 1, 2 or 3.

A ballast water treatment system comprising:

• an intake screen;
• a ballast water intake pump coupled to the intake screen;
• a screen filter coupled to an outlet of the ballast water intake pump;
• a multi-cartridge filter system coupled to the screen filter and with one or more ballast tanks;
• a ballast water dump pump coupled with the one or more ballast tanks;
• wherein the multi-cartridge filter system comprises two or more cartridge filters comprising a quaternary organosilane coating produced from a quaternary ammonium organosilane reagent having the formula:
• ##STR00007## wherein A is a member independently selected from the group consisting of —OR.sup.4, substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted aryl, and substituted or unsubstituted heteroaryl;
• and wherein R.sup.4 is a member selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted aryl, and substituted or unsubstituted heteroaryl;
• and R is substituted or unsubstituted alkylene;
• R.sup.1, R.sup.2, and R.sup.3 are members each independently selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted aryl;
• and substituted or unsubstituted heteroaryl;
• Z is a member selected from the group consisting of fluoride, chloride, bromide, iodide, tosylate, hydroxide, sulfate, and phosphate;
• and n is 1, 2, or 3;
• and wherein the ballast water treatment system is adapted to receive ballast water via the intake screen from a body of sea water comprising microorganisms and achieve at least a 95% reduction in a number of the microorganisms in the ballast water after a single pass through the multi-cartridge filter system.