An integrated treatment process for ship tail gas desulfurization and ship ballast water
A technology for ship ballast water and ship exhaust, which is used in gas treatment, natural water treatment, degassed water/sewage treatment, etc. to achieve reliable operation and low energy consumption.
Active Publication Date: 2018-06-26
胡克峰
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Problems solved by technology
At present, there is no method that can simultaneously desulfurize the ship's exhaust gas and take into account the treatment of the ship's ballast water
Method used
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Embodiment Construction
[0024] See figure 1 , figure 2 Shown, a kind of process of ship tail gas desulfurization and ship ballast water treatment simultaneously, it comprises the following steps:
[0025] (1) Sodium alkali absorption and desulfurization to obtain sodium sulfite
[0026] Ship exhaust gas enters the sodium-alkali absorption tower, and the SO X Absorption and removal, while washing PM and other harmful substances in the ship exhaust gas, the purified ship exhaust gas is discharged through the exhaust pipe; sodium hydroxide solution absorbs SO X Finally, a sodium sulfite solution is formed; the sodium sulfite solution is precipitated and flocculated to remove the PM trapped in the solution from the washing tail gas, and a clean sodium sulfite solution is obtained. The enriched pollutants such as PM are collected and transferred to the shore for treatment;
[0027] (2) Ballast water filtration, deoxygenation and sterilization
[0028] The ballast water passes through the filter to re...
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The invention belongs to the technical field of ship tail gas desulfurization and ballast water treatment and environmental protection, and particularly relates to a ship tail gas desulfurization and ship ballast water integrated treatment technology. According to the technology, low energy consumption, high efficiency and reliable operation can be achieved, and the purpose that ship ballast water is deoxidized is achieved by fully utilizing a desulfurization by-product sodium sulfite. The technology comprises the following steps that ship tail gas enters a sodium alkali absorption tower, and SOX is absorbed and removed through a sodium hydroxide solution; the sodium hydroxide solution absorbs the SOX to generate a sodium sulfite solution; biomass and impurities in the ballast water are removed through a filter, the filtered ballast water is mixed with the sodium sulfite solution, the ballast water mixed with sodium sulfite is processed through ultraviolet sterilization and then enters a ship ballast tank; in the ballast tank, sodium sulfite and dissolved oxygen in the ballast water are gradually subjected to a reaction to generate sodium sulfate, and meanwhile the ballast water is deoxidized; when the ballast water is drained, ultraviolet sterilization is firstly performed, and then air is injected into the ballast water in a drain pipeline to achieve aeration.
Description
technical field [0001] The invention belongs to the technical field of ship tail gas desulfurization / ballast water treatment and environmental protection, and in particular relates to an integrated treatment process of ship tail gas desulfurization and ship ballast water. Background technique [0002] Ship shipping undertakes 90% of the global trade volume, while CO 2 emissions accounted for only 1.8% of the global total. Therefore, ship shipping is a greener mode of transportation than air and land transportation. With the rapid development of the global shipping industry, the pollution caused by the tail gas emitted by ships is becoming more and more serious. The most representative example is the sulfur oxides (SO2) emitted by ships. x ) not only seriously affects human health, but also causes acid rain and damages the global ecosystem. In addition to the problem of air pollution, the hazards of invasive marine alien organisms caused by ship's ballast water have long a...
Claims
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IPC IPC(8): B01D53/78B01D53/92B01D53/50C02F9/08
CPCB01D53/50B01D53/78B01D53/92B01D2251/304B01D2251/604B01D2258/01C02F1/001C02F1/20C02F1/32C02F1/50C02F9/00C02F2103/008C02F2209/22C02F2303/04
Inventor 胡克峰
Owner 胡克峰