Wastewater treatment device of ship waste gas desulfurizing system

Abstract

The invention provides a wastewater treatment device of a ship waste gas desulfurizing system. The wastewater of a ship waste gas scrubbing system flows into a waste liquid box from a wastewater inletpipe; an alkaline solution is added into the waste liquid box; the wastewater in the waste liquid box is stirred, homogenized, aerated and the like, and flows into a circular air floating machine through a metering pump; a flocculant is added; after the wastewater is flocculated and aerated in the circular air floating machine, the sulfite, oil dirt, suspension matters and other impurities are oxidized and removed; then, the wastewater flows into a flat plate ceramic film filter to further remove the oil dirt, colloid and other impurities; finally, the wastewater flows into an activated carbon filter via a conveying pump for the third step treatment, so as to remove the polyaromatic hydrocarbon, and improve the water quality; the treated wastewater is detected by a water quality monitoring device; when the treated wastewater reaches the standard, the wastewater flows into a scrubbing wastewater drain pipe through a tee valve, and is drained out of a ship, or flows into a temporary storage box; when the treated wastewater does not reach the standard, the wastewater flows into the waste liquid box via a reflux pipeline to be treated again. The wastewater treatment device has the advantages that the automation degree is high, the structure is compact, and the wastewater treatment device is suitable for installation and use in ships.

Description

technical field [0001] The invention relates to a ship waste water treatment system, in particular to a ship waste gas desulfurization system waste water treatment device. Background technique [0002] With the development of economy and technology, human beings are gradually paying more attention to and controlling marine environmental pollution. When wet treatment is used to desulfurize ship exhaust gas, washing desulfurization wastewater will be generated, which contains pollutants such as suspended solids, oil pollution, polycyclic aromatic hydrocarbons, and sulfites. The International Maritime Organization (IMO) has set strict discharge standards for the discharge of washing wastewater from ships, so it is very necessary to develop a set of efficient wastewater treatment devices for ship exhaust gas scrubbing systems. [0003] At present, there are relatively few studies on ship exhaust gas washing wastewater, and most of the technologies used for the treatment of ship...

AI Technical Summary

Problems solved by technology

This system saves the dosing device, but the pH value of the discharged wastewater cannot meet the discharge requirements when the wastewater is adjusted and tempered. In addition, without coagulation treatment, the direct cyclone separation of the wastewater cannot fully separate the suspended solids such as oil pollution. In addition, electrolysis is used. device, high energy consumption

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