Electrolytic method based ship ballast water and domestic wastewater integrated treatment system

Abstract

The invention provides an electrolytic method based ship ballast water and domestic wastewater integrated treatment system which comprises a ballast water pretreatment unit, a domestic wastewater pretreatment unit, an electrolysis unit and a ballast tank; one path of the ballast water pretreatment unit is connected with an inlet of the ballast tank; the other path of the ballast water pretreatment unit is connected with the inlet of the ballast tank after passing through the electrolysis unit through a ballast water branch; the output end of the domestic wastewater pretreatment unit is connected with an inlet of the electrolysis unit; and one path of an outlet of the electrolysis unit is merged into the inlet of the ballast tank, and the other path is connected with an outlet of treated domestic wastewater. According to the electrolytic method based ship ballast water and domestic wastewater integrated treatment system, comprehensive treatment of the ship ballast water and the domestic wastewater can be carried out, the requirement on treating ship water can be met by adopting one set of equipment, and the space and the cost needed by the equipment is greatly lowered; after a proper quantity of In is doped in an adopted anode, the surface roughness and the specific surface area are larger, and the current efficiency is improved; and meanwhile, with addition of Pd elements, the problem that an ordinary anode is poorer in effect on treating low-salinity mixed seawater is solved.

Description

technical field [0001] The invention relates to an electrolysis-based integrated treatment system for ship ballast water and domestic sewage, which is mainly used for the treatment of ballast water and domestic sewage, and belongs to the field of environmental engineering. Background technique [0002] During the voyage of ocean-going ships, ballast is an inevitable state. Off-site loading and discharge of ship's ballast water can cause the spread of harmful aquatic organisms and pathogens. Ships also discharge a large amount of domestic sewage during navigation. Ship domestic sewage contains a large number of bacteria, parasites, viruses, and high concentrations of eutrophication substances. These untreated domestic sewage is discharged into the water without treatment, which may cause infection of aquatic organisms and humans, as well as excessive growth of algae . [0003] The existing domestic sewage treatment system and the ballast water management system are two sep...

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to provide an integrated treatment system for ship ballast water and domestic sewage based on electrolysis to solve the problems of ship ballast water and domestic sewage in the prior art. The sewage treatment systems are independent, take up a lot of space, and cost high; and the problem of poor degradation effect when using ordinary titanium-based metal oxide anodes to treat organic matter in the low salinity of domestic sewage mixed with seawater

Images