Membrane ship ballast water treatment system

Abstract

The invention relates to a membrane ship ballast water treatment system. A kingston valve communicates with a ballast compartment sequentially via a coarse seawater strainer, a ballast pump and a secondary filtering unit, so that the membrane ship ballast water treatment system is formed, and the secondary filtering unit comprises a mechanical filter and a microfiltration membrane filter. Adopting the mechanical filter and the microfiltration membrane filter as the filtering unit of the ballast water treatment system, which have an automatic filter element cleaning function, the membrane shipballast water treatment system can be automatically cleaned, does not need to be manually operated and maintained, is convenient to use, has a long service life, can save use cost, and can help to enhance the effect of filtering ship ballast water.

Description

technical field [0001] The invention relates to a membrane method ship ballast water treatment system, in particular to a membrane method ship ballast water treatment system with filter automatic cleaning. Background technique [0002] At present, the marine environment is being threatened by four major threats: the invasion of alien organisms; the discharge of land-based pollution; overfishing of marine resources and the destruction of marine habitats. With the rapid development of the world's shipping industry and the rapid increase of the tonnage of ships, about 3 to 5 billion tons of ship ballast water are transferred from one port to another every year, and the alien organisms brought in are one of them. When a ship is loading and unloading cargo, the center of gravity and buoyancy of the ship are constantly changing. For the draft, balance and inclination of the ship, it is necessary to inject seawater into the ballast tank when it is lightly loaded; to overboard. Du...

AI Technical Summary

Problems solved by technology

During the migration of ballast water, alien ballast water organisms lack natural enemies in the local area, and they flood wantonly, causing damage to the balance of the local ecological environment

It is necessary to filter the seawater injected into the ballast water. The traditional filter can filter out the sundries in the water body, but the filter element has been used for a long time, and the sundries accumulated on the filter element will easily affect the water quality, and in severe cases, the filter will be blocked. , failure, even if the detachable filter element is maintained or replaced, it must be operated without water, which is time-consuming and labor-intensive, and the maintenance cost of professionals is high

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