CN112919707A - Advanced treatment and recycling device for ship tail gas desulfurization washing wastewater - Google Patents
Advanced treatment and recycling device for ship tail gas desulfurization washing wastewater Download PDFInfo
- Publication number
- CN112919707A CN112919707A CN202110418553.9A CN202110418553A CN112919707A CN 112919707 A CN112919707 A CN 112919707A CN 202110418553 A CN202110418553 A CN 202110418553A CN 112919707 A CN112919707 A CN 112919707A
- Authority
- CN
- China
- Prior art keywords
- washing
- wastewater
- washing water
- desulfurization
- tail gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005406 washing Methods 0.000 title claims abstract description 161
- 239000002351 wastewater Substances 0.000 title claims abstract description 80
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 56
- 230000023556 desulfurization Effects 0.000 title claims abstract description 56
- 238000004064 recycling Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 94
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 22
- 231100000719 pollutant Toxicity 0.000 claims abstract description 22
- 230000001699 photocatalysis Effects 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 239000003054 catalyst Substances 0.000 claims description 13
- 239000011941 photocatalyst Substances 0.000 claims description 9
- 230000005284 excitation Effects 0.000 claims description 8
- 239000004065 semiconductor Substances 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 6
- 230000000593 degrading effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005201 scrubbing Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 6
- 125000004122 cyclic group Chemical group 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 238000000108 ultra-filtration Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 54
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 27
- 238000000034 method Methods 0.000 description 20
- 230000008569 process Effects 0.000 description 12
- 238000004065 wastewater treatment Methods 0.000 description 11
- 238000010992 reflux Methods 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000006731 degradation reaction Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 6
- 239000013535 sea water Substances 0.000 description 6
- 239000010802 sludge Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000002957 persistent organic pollutant Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 229910052815 sulfur oxide Inorganic materials 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 3
- 238000005273 aeration Methods 0.000 description 3
- 239000013043 chemical agent Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005374 membrane filtration Methods 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002085 persistent effect Effects 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 238000006303 photolysis reaction Methods 0.000 description 2
- 230000015843 photosynthesis, light reaction Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- -1 suspended matters Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- CBACFHTXHGHTMH-UHFFFAOYSA-N 2-piperidin-1-ylethyl 2-phenyl-2-piperidin-1-ylacetate;dihydrochloride Chemical compound Cl.Cl.C1CCCCN1C(C=1C=CC=CC=1)C(=O)OCCN1CCCCC1 CBACFHTXHGHTMH-UHFFFAOYSA-N 0.000 description 1
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 239000003738 black carbon Substances 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- DKUYEPUUXLQPPX-UHFFFAOYSA-N dibismuth;molybdenum;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Mo].[Mo].[Bi+3].[Bi+3] DKUYEPUUXLQPPX-UHFFFAOYSA-N 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical group 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000013032 photocatalytic reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 150000003346 selenoethers Chemical class 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/32—Hydrocarbons, e.g. oil
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/32—Hydrocarbons, e.g. oil
- C02F2101/327—Polyaromatic Hydrocarbons [PAH's]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses an advanced treatment and recycling device for ship tail gas desulfurization washing wastewater, which comprises: a washing water storage tank connected to the washing tower; one end of the washing water circulating pipeline is connected with an outlet at the bottom of the washing tower, and the other end of the washing water circulating pipeline is divided into two parts to form a first circulating pipeline and a second circulating pipeline; a filter; and a wastewater processor comprising an ultrasonic assembly, a photocatalytic assembly and an ultrafiltration assembly; wherein, the first circulating pipeline is connected with the washing water storage tank to form a first circulating system; the second circulating pipeline is sequentially communicated with the filter, the wastewater processor and the washing water storage tank to form a second circulating system. The device treats the washing wastewater by adopting filtering and ultrasonic coupling multiphase photocatalytic oxidation reaction technologies, so that pollutants in the wastewater can be efficiently and thoroughly removed, and the cyclic utilization rate of the washing water is improved; meanwhile, no chemical is introduced to treat the washing wastewater, so that the negative effect on the ecological environment is small.
Description
Technical Field
The invention belongs to the technical field of treatment of ship tail gas desulfurization washing wastewater, and particularly relates to an advanced treatment and recycling device for ship tail gas desulfurization washing wastewater.
Background
With the rapid development of global economy and shipping logistics, the emission of ship exhaust is becoming one of the main pollution sources affecting the global atmosphere and oceans. On 7/1 2010, the International Maritime Organization (IMO) officially validated through the rules VI of the international convention on prevention of ship pollution (also known as MARPOL convention), and increasingly strict regulations on sulfur oxides (SOx) and nitrogen oxides (NOx) emitted from ship exhaust gas are being implemented. Since 2012, the reduction of the concentration of SOx emissions by 50% in an open ocean vessel is the first objective of IMO, and the emission reduction index is revised and upgraded again every 5 years later, and in 2020, the regulation enters the third implementation stage, and the sulfur dioxide emission applied by global ocean vessels is required to be reduced by 85% compared with the existing limit value of 3.50% m/m.
In order to achieve the exhaust emission reduction index in the international convention for preventing ship from causing pollution (also called MARPOL convention), various countries are currently developing technologies for controlling ship exhaust emission, wherein one main direction is to remove SOx pollutants in ship exhaust gas by wet treatment. The method can be subdivided into three modes of open-circuit type, mixed type and closed-circuit type circular washing, wherein the open-circuit type and mixed type ship tail gas desulfurization modes have the common defect that a large amount of pollutants such as incompletely combusted fuel oil and volatile lubricating oil discharged from tail gas are transferred into seawater, so that a large amount of Polycyclic Aromatic Hydrocarbon (PAHs) pollutants contained in the pollutants enter the sea, the PAHs belong to persistent difficultly-degradable pollutants and have high biological toxicity such as carcinogenesis, teratogenesis, food chain enrichment and transfer, and the problem of marine pollution discharge of ship tail gas washing wastewater is increasingly highlighted.
The closed-circuit ship tail gas desulfurization washing method which is the mainstream development technology at present improves the problem of secondary pollution emission of an open-circuit and mixed system, but the technology of the method still has a key bottleneck problem at present, namely, the advanced treatment technology of a large amount of desulfurization washing wastewater generated in the working process of the closed-circuit ship tail gas desulfurization washing system, particularly the organic pollutant washing wastewater concentrated with high salt, high concentration, high chroma and high biotoxicity needs to seek technical breakthrough urgently to ensure that the physicochemical property of the washing water in the closed-circuit desulfurization washing system is always in the optimal working condition.
In the prior art, the treatment technology of the ship tail gas washing wastewater mainly comprises the following steps: chinese patent 'a new ship wastewater treatment integrated device (CN 201110087069.9)' and 'an improved ship water treatment device (CN 201520809429.5)', the invention makes wastewater pass through a plurality of chambers or layers in sequence, and the wastewater is respectively treated by aeration, sedimentation, filtration, biochemistry, disinfection and other treatment processes, although the integration level of the device is higher, the treatment capacity in unit time is smaller, and the device is not suitable for the requirement of a larger circulating water volume of a ship tail gas desulfurization washing system; the invention introduces a microbial decomposition process to remove organic pollutants in the washing wastewater, is limited by harsh water qualities such as high acid-base and high organic toxicity generated in the washing process of the ship exhaust gas, the variety and abundance of microbes are seriously influenced, so that the impact resistance of a microbial degradation process section is poor, the water quality of the treated washing water is sharply fluctuated, the recycling or discharge standard cannot be reached, and even the normal process of an exhaust gas cleaning system is influenced, so that the risk potential is great.
The technology provided in the Chinese patent 'a ship desulfurization wastewater treatment device and method (CN 201310422883.0)' mainly comprises micro-bubbles, chemical agent flocculation and adsorption, and has the problems of long treatment process flow, large equipment quantity, large sludge yield, easiness in adsorption saturation, low sewage recycling rate and the like. In the Chinese patent 'ship waste gas desulfurization wastewater treatment device and method (CN 201510119019.2)', wastewater is introduced into a cyclone separation unit to separate sludge, residual wastewater enters an electrochemical treatment unit to be subjected to oxidative degradation, and the wastewater is discharged after treatment. The system saves a dosing device, but the pH value of the wastewater can not meet the discharge requirement; in addition, the wastewater is directly subjected to cyclone separation without coagulation treatment, and suspended matters such as oil stains and the like cannot be fully separated; and an electrolysis device is also used, so that the energy consumption is higher.
In the Chinese patent ' a wastewater treatment device for a ship exhaust gas desulfurization system ' (CN201810211847.2) ', impurities such as sulfite, oil stain, suspended matters and the like are removed by adopting a three-step treatment method of air flotation, chemical flocculation, aeration, flat ceramic membrane filtration and activated carbon adsorption, and the method has the defects of large consumption of activated carbon, easy adsorption saturation, secondary pollution and the like.
In conclusion, the traditional water treatment technologies of aeration, air flotation, flocculation, sedimentation, cyclone separation, adsorption, biochemistry, membrane filtration, electrochemistry and the like for transferring pollutants are still mainly adopted in the field of ship desulfurization washing wastewater treatment, organic pollutants in desulfurization washing water, especially pollutants which are difficult to degrade and persistent, such as PAHs (polycyclic aromatic hydrocarbons), cannot be thoroughly removed, so that PAHs (polycyclic aromatic hydrocarbons) in the current actual effluent cannot meet the requirement of concentration limit value specified by IMO (international mobile organic oxidizer), and seawater dilution is forced to be adopted to help the performance, so that the total amount of the actual pollutants discharged into the ocean is not reduced; in addition, the existing ship washing wastewater treatment device also has the problems of high energy consumption, unstable physicochemical properties of recycled washing water and the like.
Disclosure of Invention
The invention aims to provide a device for deeply treating and recycling ship tail gas desulfurization washing wastewater, which aims to solve the problems of incomplete pollutant removal, low efficiency, high sludge yield, high energy consumption, low washing water recycling rate and the like in the prior art.
In order to achieve the above object, the present invention provides an advanced treatment and recycling apparatus for ship tail gas desulfurization washing wastewater, which is used for treating and recycling washing wastewater formed after tail gas treatment in a washing tower, and comprises:
one side of the washing water storage tank is connected with a water inlet pipeline, and the other side of the washing water storage tank is connected with the washing tower through a conveying pipeline;
one end of the washing water circulating pipeline is connected with an outlet at the bottom of the washing tower, and the other end of the washing water circulating pipeline is divided into two parts to form a first circulating pipeline and a second circulating pipeline;
a filter for filtering impurities in the wastewater; and the number of the first and second groups,
the wastewater processor comprises an ultrasonic assembly and a photocatalytic assembly and is used for degrading and removing pollutants in wastewater;
wherein, the first circulating pipeline is connected with the washing water storage tank to form a first circulating system; the second circulating pipeline is sequentially communicated with the filter, the wastewater processor and the washing water storage tank to form a second circulating system.
The photocatalytic component comprises an excitation light source and a photocatalyst.
Preferably, the dominant wavelength emitted by the excitation light source is in a range of 185nm to 420 nm.
Preferably, the photocatalyst is a semiconductor catalyst.
Further, the semiconductor catalyst is a supported catalyst.
Preferably, the power range of the ultrasonic assembly is 20 kHz-80 kHz.
Preferably, the conveying pipeline is provided with a PAHs concentration detector.
Preferably, the washing water storage tank is provided with a liquid level meter.
Preferably, the washing water storage tank is provided with a pH meter.
Compared with the prior art, the device provided by the invention has the following advantages:
1. the advanced treatment and recycling device for the ship tail gas desulfurization washing wastewater adopts the wastewater treatment device to treat the washing wastewater, and the wastewater treatment device comprises an ultrasonic component and a photocatalytic component, so that three purification effects of ultrasonic degradation, photolysis and multiphase photocatalytic oxidation are realized simultaneously, the ultrasonic wave and the multiphase photocatalysis also have a synergistic effect, pollutants such as suspended matters, oil stains, sulfites, polycyclic aromatic hydrocarbons and the like in the washing wastewater can be degraded and removed more efficiently and thoroughly, and the sludge yield is greatly reduced; on the other hand, the wastewater processor does not introduce any chemical, thereby greatly reducing the negative influence on the ecological environment in the wastewater treatment process.
2. This advanced treatment and retrieval and utilization device of boats and ships tail gas desulfurization washing waste water is through setting up the second circulation system, make the washing water of closed circuit formula boats and ships tail gas cleaning system thoroughly purify and supply with the bypass form on line along with the ship, the time of active service and the cyclic utilization of washing water in the closed circuit formula boats and ships tail gas cleaning system have not only been improved, the demand of its moisturizing to sources such as sea water has been reduced, the replenishment consumption of a large amount of alkaline washing medicaments has also been saved simultaneously, thereby the storage capacity of chemical agent on the ship has been reduced, the boats and ships navigation potential safety hazard has been reduced.
3. This advanced treatment and retrieval and utilization device of boats and ships tail gas desulfurization washing waste water is through detecting the concentration of PAHs in the washing waste water and controlling the working condition of first, second circulation system, can make boats and ships tail gas desulfurization washing system carry out high-efficient desulfurization washing to tail gas simultaneously, handles PAHs in the washing waste water, reduces the environmental risk that PAHs enrichment caused in the washing waste water.
4. Compared with the traditional photocatalytic component in which a powder catalyst is used, the device provided by the invention adopts the supported catalyst, and the use of the supported catalyst can reduce the loss of the photocatalyst, simplify the treatment equipment, prolong the service life of the equipment and improve the stability of the equipment in the use process.
5 the advanced treatment and recycling device for the ship tail gas desulfurization washing wastewater does not need to be provided with an electrolysis device, and has low energy consumption.
6. This advanced treatment of boats and ships tail gas desulfurization washing wastewater and retrieval and utilization device's second circulation system is to original boats and ships tail gas desulfurization washing system's structure, and the structure of first circulation system does not have direct influence promptly, and the treatment facility of installing additional hardly increases overall structure's complexity, and controls simply. In addition, the additionally arranged treatment equipment has small volume, low energy consumption, high treatment efficiency and wide application range, and the treatment scale can be flexibly adjusted by increasing or decreasing the number of the ultrasonic assemblies and the photocatalytic assemblies during actual use.
Drawings
FIG. 1 is a flow chart of a washing water treatment process using the advanced treatment and recycling device for the ship tail gas desulfurization washing wastewater of the invention.
The attached drawings are as follows:
a washing water storage tank 1; a delivery line 2; a lift pump 21; a tail gas desulfurization washing tower 3; a marine engine 4; a washing water circulation line 5; a first circulation line 51; a second circulation line 52; a first reflux pump 511; a second reflux pump 521; a filter 522; a wastewater processor 523; a water inlet pump 6; PAHs concentration detector 7.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure, when the embodiments of the present invention are described below with reference to the accompanying drawings and specific examples. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Please refer to fig. 1. It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, so the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation, the type, quantity and proportion of the components in actual implementation can be changed freely, and the layout of the components may be more complicated.
In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the present invention provides an advanced treatment and recycling device for ship tail gas desulfurization washing wastewater, which is used for treating washing wastewater formed after tail gas treatment in a washing tower, and comprises:
the device comprises a washing water storage tank 1, wherein one side of the washing water storage tank 1 is connected with a water inlet pipeline provided with a water inlet pump 6, the other side of the washing water storage tank is connected with a tail gas desulfurization washing tower 3 through a conveying pipeline 2 provided with a lift pump 21, and the conveying pipeline is provided with a PAHs concentration detector 7;
a washing water circulation pipeline 5, one end of which is connected with the outlet at the bottom of the washing tower 3, and the other end of which is divided into two parts to form a first circulation pipeline 51 and a second circulation pipeline 52;
a filter 522 for filtering impurities in the wastewater;
the wastewater processor 523, the wastewater processor 523 comprises a wastewater processor, which comprises an ultrasonic component and a photocatalytic component, and is used for degrading and removing pollutants in wastewater;
the first circulation pipeline 51 is provided with a first reflux pump 511, and is connected with the washing water storage tank 1 to form a first circulation system; the second circulation pipeline 52 is sequentially provided with a second reflux pump 521, and is sequentially communicated with the filter 522, the wastewater processor 523 and the washing water storage tank 1 to form a second circulation system, and the two circulation systems are used for recycling the washing wastewater.
The photocatalytic component comprises an excitation light source and a photocatalyst. The dominant wavelength range emitted by the excitation light source is 185-420 nm, and the optimal dominant wavelength range is light sources emitting the dominant wavelengths of 254nm and 185 nm; the photocatalyst is a metal oxide, sulfide, selenide and other semiconductor photocatalyst excited by ultraviolet rays and visible light, and specifically comprises the following components: titanium dioxide, modified titanium dioxide treated by nitrogen doping, dye sensitization and other processes, and various composite semiconductor photocatalysts containing materials such as zinc oxide, nickel oxide, bismuth oxyiodide, bismuth vanadate, bismuth molybdate, graphene-like carbon nitride and the like.
The semiconductor catalyst is a supported catalyst, the supported substrate can be inorganic or organic structural materials such as ceramics, silica gel, resin, graphite, zeolite, stainless steel, nickel-based alloy, titanium-based alloy and the like, and the shape of the supported substrate can be spherical, flaky, reticular, fibrous, foamed and spongy.
The ultrasonic assembly adopts the power range of 20 kHz-80 kHz, the optimal power is 20kHz, a large amount of polycyclic aromatic hydrocarbon attached to macroscopic particles or sludge can be released into a water body environment, the outer wall of an excitation light source participating in multiphase photocatalytic reaction can be continuously cleaned, the penetrating capacity of effective acting light waves of the excitation light source is guaranteed, and therefore the photocatalytic assembly works reliably and efficiently.
The washing water storage tank 1 is provided with a liquid level meter and a pH meter for monitoring the pH value and the water quantity of the washing water in the washing water storage tank 1 in real time. When the water quantity is too small, a proper amount of seawater is pumped in through the water inlet pump 6 and alkaline substances needed by the washing water are added, so that the washing water can always run in a system with a proper alkalinity in a sufficient amount, and a good treatment effect is maintained.
As shown in fig. 1, the advanced treatment and recycling device for the desulfurization and washing wastewater of the marine tail gas provided by the invention comprises the following process flows in use: tail gas generated by combustion of sulfur-containing fuel by a ship engine 4 enters a tail gas desulfurization washing tower 3, washing water in a washing water storage tank 1 cleans the sulfur-containing tail gas in the ship tail gas desulfurization washing tower 3 in a droplet-shaped manner under the action of a lift pump 21 and a spray head (not marked in the figure), alkaline substances such as sodium hydroxide in the washing water can fully react with the sulfur-containing components in the tail gas to generate sodium sulfite or further oxidize to generate sodium sulfate, the sodium sulfate is dissolved in the washing water and flows out from an outlet at the bottom of the washing tower 3 to enter a washing water circulation pipeline 5 along with the washing water, simultaneously fuel components, black carbon, PAHs and the like which are not completely combusted enter the washing water circulation pipeline 5 along with the washing water, and the clean tail gas is discharged from the upper opening of the tail gas desulfurization washing tower 3; the washing water containing various pollutants entering the washing water circulation pipeline 5 can return to the washing water storage tank 1 through the first circulation pipeline 51 provided with the first reflux pump 511 to participate in the tail gas washing process again, and simultaneously, part of the washing water can be pumped into the second circulation system through the second reflux pump 521 to perform wastewater treatment: firstly, after macroscopic pollutants such as carbon black, insoluble inorganic salts, unburned components and the like (different from micro-nano-scale particles) in the washing water are filtered or removed by the filter 522 through the steps of coarse filtration, centrifugal separation and the like, the washing water enters the wastewater processor 523, and organic pollutants such as PAHs (polycyclic aromatic hydrocarbons) in the washing water are thoroughly decomposed or oxidized through the triple purification effects of ultrasonic wave, heterogeneous photocatalysis and photolysis in the processor to generateForming small molecule organic acid which is easy to degrade and further generating CO2Water, inorganic salts and the like, and a small amount of generated insoluble inorganic salts and the like are filtered and separated when the recycling flow passes through the filter 522 and then are subjected to bank transfer treatment; meanwhile, the treated washing water enters the washing water storage tank 1 through the second circulating pipeline 52, and enters the washing water storage tank 1 together with untreated washing water in the tank again from the upper part of the tail gas desulfurization washing tower 3 under the action of the lifting pump 21, so that the sulfur-containing tail gas generated by the ship engine is cleaned. The above processes are continuously and circularly carried out.
It should be noted that, in the present invention, the first circulation system and the second circulation system do not necessarily need to operate simultaneously, and the present invention is provided with a PAHs concentration detector 7 to measure the concentration of PAHs in the washing water in real time, so as to adjust the working states of the first circulation system and the second circulation system: when the washing water just starts to work, the contents of pollutants such as PAHs and the like and impurities in the washing wastewater are not large, namely the concentration of the PAHs in the washing wastewater is not more than 50 mu g/L, only the first circulating system needs to be operated at the moment; along with the increase of the time for treating the waste gas by the washing water, the contents of PAHs pollutants and impurities in the washing waste water are gradually increased, and when the concentration of the pollutants exceeds 50 mug/L, the second circulating system and the first circulating system work simultaneously; when the pollutant concentration is too high and is positioned outside the ship tail gas emission control area, the first circulating system can be stopped, and only the second circulating system is started to efficiently treat the pollutants in the washing wastewater.
Example 1
The ship engine 4 of the applicable ship is a WARTSILA-SULZER RT fiex50 type low-speed diesel engine, and the total smoke discharge is 4 x 104NM3H, the flow rate of the lift pump 21 is 0 to 80m3The initial temperature of the flue gas is 300 ℃ and SO2Is about 500mg/Nm3. The flue gas produced by the magnesium-based seawater method is subjected to desulfurization and washing treatment, and the washing water contains 1% of Mg (OH)2The closed-circuit ship tail gas desulfurization washing system is started for 2 hours, and the tail gas desulfurization washing water in the initial washing water storage tank 1 is 2.7m3. The flow rate of the second reflux pump 521 is 7.5L/min, and the volume of the reaction cavity of the wastewater processor 523 is 0.2m350 pieces of power are 54w,Ultraviolet lamps with emission bands of 254nm are arranged in the reactor at equal intervals, the reticular nitrogen-doped titanium dioxide supported catalyst and the ultraviolet lamps are uniformly arranged in parallel, and the processing frequency of the ultrasonic assembly is 20 KHz. Calculated to be 0.9m in total3The washing water is treated by a waste water processor 523 for 0.5h, and the PAHs degradation rate of the washing water reaches 50.1 percent through detection; when the flow rate of the second reflux pump 521 is adjusted to be 15L/min, the working power of the wastewater processor 523 is unchanged, and the PAHs degradation rate of the washing water is 90.6% through detection.
Example 2
The engine of the applicable ship is a MAN 6S35MC type low-speed diesel engine, when the engine load is 50%, the total smoke discharge amount of the ship engine 4 is 28000kg/h, the used fuel oil is high-sulfur 3.5% ship fuel oil, 50L of sodium hydroxide solution with the mass fraction of 20% is consumed per hour under the condition that the desulfurization efficiency of the ship tail gas desulfurization washing tower 3 is kept to be more than 99%, namely 50L of desulfurization tail gas washing water loses the desulfurization effect, the closed-circuit ship tail gas desulfurization washing system is started for 1h, the total desulfurization tail gas washing water in the initial washing water storage tank 1 is 0.5m3. The flow rate of the second reflux pump 521 is 5L/min, and the volume of the reaction cavity of the wastewater processor 523 is 0.5m3100 ultraviolet lamps with power of 38w and emission bands of 254nm and 185nm are arranged in the reactor at equal intervals, the spongy zinc oxide supported catalyst and the ultraviolet lamps are uniformly arranged in parallel, and the processing frequency of the ultrasonic assembly is 20 kHz. Calculated to be 0.3m in total3The washing water is treated for 1 hour by a wastewater processor 523, and the PAHs degradation rate of the washing water reaches 76.2 percent by detection; the flow rate of the second reflux pump 521 is further adjusted to 8L/min, the working power of the wastewater processor 523 is unchanged, and the PAHs degradation rate of the washing water is 95.1% through detection.
In conclusion, the invention provides an advanced treatment and recycling device for ship tail gas desulfurization washing wastewater. The device does not need to be provided with an electrolysis device, and has low energy consumption; the washing wastewater is treated by adopting the technology of filtering and ultrasonic coupling multiphase photocatalytic oxidation reaction, so that pollutants in the washing wastewater can be efficiently and thoroughly degraded and removed, the sludge yield is greatly reduced, no chemical is introduced, and the negative influence on the ecological environment in the wastewater treatment process is greatly reduced; in addition, the device improves the service time and the cyclic utilization rate of the washing water in the closed-circuit ship tail gas desulfurization washing system, reduces the water replenishing demand of the closed-circuit ship tail gas desulfurization washing system on seawater and other sources, and simultaneously saves the replenishing consumption of a large amount of alkaline washing agents, thereby reducing the storage capacity of chemical agents on ships and reducing the potential safety hazard of ships.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (9)
1. The utility model provides a marine tail gas desulfurization washing wastewater's advanced treatment and retrieval and utilization device, the device is used for handling and retrieve the washing wastewater that forms after the scrubbing tower handles the tail gas, its characterized in that, the device includes:
one side of the washing water storage tank is connected with a water inlet pipeline, and the other side of the washing water storage tank is connected with the washing tower through a conveying pipeline;
one end of the washing water circulating pipeline is connected with an outlet at the bottom of the washing tower, and the other end of the washing water circulating pipeline is divided into two parts to form a first circulating pipeline and a second circulating pipeline;
a filter for filtering impurities in the wastewater; and the number of the first and second groups,
the wastewater processor comprises an ultrasonic assembly and a photocatalytic assembly and is used for degrading and removing pollutants in wastewater;
wherein, the first circulating pipeline is connected with the washing water storage tank to form a first circulating system; the second circulating pipeline is sequentially communicated with the filter, the wastewater processor and the washing water storage tank to form a second circulating system.
2. The advanced treatment and recycling device for wastewater from desulfurization and washing of marine exhaust according to claim 1, wherein said photocatalytic module comprises an excitation light source and a photocatalyst.
3. The apparatus for deep treatment and recycling of wastewater from desulfurization and washing of marine exhaust according to claim 2, wherein the dominant wavelength emitted from the excitation light source is in the range of 185nm to 420 nm.
4. The advanced treatment and recycling device for the desulfurization and washing wastewater of marine exhaust according to claim 2, wherein the photocatalyst is a semiconductor catalyst.
5. The advanced treatment and recycling device for the desulfurization and washing wastewater of marine exhaust according to claim 4, wherein the semiconductor catalyst is a supported catalyst.
6. The advanced treatment and recycling device for the desulfurization and washing wastewater of marine tail gas according to claim 1, wherein the power range adopted by the ultrasonic assembly is 20 kHz-80 kHz.
7. The advanced treatment and recycling device for wastewater from desulfurization and washing of marine exhaust according to claim 1, wherein a PAHs concentration detector is disposed on the delivery line.
8. The advanced treatment and recycling device of desulfurization and washing wastewater of marine exhaust according to claim 1, wherein the washing water storage tank is provided with a liquid level meter.
9. The advanced treatment and recycling device of desulfurization and washing wastewater of marine exhaust according to claim 1, wherein the washing water storage tank is provided with a pH meter.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110418553.9A CN112919707A (en) | 2021-04-19 | 2021-04-19 | Advanced treatment and recycling device for ship tail gas desulfurization washing wastewater |
| PCT/CN2022/083704 WO2022222707A1 (en) | 2021-04-19 | 2022-03-29 | Advanced treatment and recycling apparatus for ship exhaust desulfurization washing wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110418553.9A CN112919707A (en) | 2021-04-19 | 2021-04-19 | Advanced treatment and recycling device for ship tail gas desulfurization washing wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112919707A true CN112919707A (en) | 2021-06-08 |
Family
ID=76174546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110418553.9A Pending CN112919707A (en) | 2021-04-19 | 2021-04-19 | Advanced treatment and recycling device for ship tail gas desulfurization washing wastewater |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112919707A (en) |
| WO (1) | WO2022222707A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113789090A (en) * | 2021-09-16 | 2021-12-14 | 广州特种承压设备检测研究院 | Graphene modified photocatalytic water-based paint and preparation method and application thereof |
| CN115159734A (en) * | 2022-07-29 | 2022-10-11 | 中船动力研究院有限公司 | Water treatment system and ship |
| WO2022222707A1 (en) * | 2021-04-19 | 2022-10-27 | 上海海事大学 | Advanced treatment and recycling apparatus for ship exhaust desulfurization washing wastewater |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117919936B (en) * | 2024-03-22 | 2024-05-28 | 南通远洋船舶配套有限公司 | Continuous tail gas desulfurizing tower for bulk cargo ship |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331093A (en) * | 2013-06-26 | 2013-10-02 | 哈尔滨工程大学 | Device for washing and desulfurating waste gas of marine diesel engine |
| CN104043327A (en) * | 2014-06-21 | 2014-09-17 | 曹学良 | Ship tail gas electro-catalysis system |
| CN107344068A (en) * | 2016-05-04 | 2017-11-14 | 中国海洋大学 | The photochemical catalytic oxidation smoke management system denitrating technique integrated with photocatalysis aeration |
| WO2018191664A1 (en) * | 2017-04-13 | 2018-10-18 | Carbonxt, Inc. | System and methods for removing dissolved metals from wastewater streams |
| CN110734164A (en) * | 2019-11-18 | 2020-01-31 | 唐建 | ship wastewater treatment system and treatment method thereof |
| CN111888905A (en) * | 2020-07-24 | 2020-11-06 | 浙江大学 | Marine hybrid desulfurization system and method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI123737B (en) * | 2012-02-13 | 2013-10-15 | Oy Langh Ship Ab | Method for treating ship-source contaminants with a scrubber |
| CN105884101B (en) * | 2016-06-12 | 2019-12-27 | 武汉东川自来水科技开发有限公司 | Triple-effect integrated ship sewage treatment device and method |
| KR20210034950A (en) * | 2019-09-23 | 2021-03-31 | 삼성중공업 주식회사 | Water treatment system of vessel |
| CN112919707A (en) * | 2021-04-19 | 2021-06-08 | 上海海事大学 | Advanced treatment and recycling device for ship tail gas desulfurization washing wastewater |
-
2021
- 2021-04-19 CN CN202110418553.9A patent/CN112919707A/en active Pending
-
2022
- 2022-03-29 WO PCT/CN2022/083704 patent/WO2022222707A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331093A (en) * | 2013-06-26 | 2013-10-02 | 哈尔滨工程大学 | Device for washing and desulfurating waste gas of marine diesel engine |
| CN104043327A (en) * | 2014-06-21 | 2014-09-17 | 曹学良 | Ship tail gas electro-catalysis system |
| CN107344068A (en) * | 2016-05-04 | 2017-11-14 | 中国海洋大学 | The photochemical catalytic oxidation smoke management system denitrating technique integrated with photocatalysis aeration |
| WO2018191664A1 (en) * | 2017-04-13 | 2018-10-18 | Carbonxt, Inc. | System and methods for removing dissolved metals from wastewater streams |
| CN110734164A (en) * | 2019-11-18 | 2020-01-31 | 唐建 | ship wastewater treatment system and treatment method thereof |
| CN111888905A (en) * | 2020-07-24 | 2020-11-06 | 浙江大学 | Marine hybrid desulfurization system and method |
Non-Patent Citations (1)
| Title |
|---|
| 王光辉等: "《水处理工程（上册）》", 31 January 2015, 中国环境出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022222707A1 (en) * | 2021-04-19 | 2022-10-27 | 上海海事大学 | Advanced treatment and recycling apparatus for ship exhaust desulfurization washing wastewater |
| CN113789090A (en) * | 2021-09-16 | 2021-12-14 | 广州特种承压设备检测研究院 | Graphene modified photocatalytic water-based paint and preparation method and application thereof |
| CN115159734A (en) * | 2022-07-29 | 2022-10-11 | 中船动力研究院有限公司 | Water treatment system and ship |
| WO2024021215A1 (en) * | 2022-07-29 | 2024-02-01 | 中船动力研究院有限公司 | Water treatment system and ship |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022222707A1 (en) | 2022-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112919707A (en) | Advanced treatment and recycling device for ship tail gas desulfurization washing wastewater | |
| KR101680990B1 (en) | Combined cleaning system and method for reduction of sox and nox in exhaust gases from a combustion engine | |
| KR102418123B1 (en) | System and method for removing sulfur oxides according to sea area of low salinity, and vessel having the system | |
| JP6154020B2 (en) | Systems for cleaning exhaust gas, use of such systems, and multiple systems | |
| CN202785890U (en) | Advanced treatment and recycling device for textile printing and dyeing wastewater | |
| CN108187480B (en) | Ship exhaust gas desulfurization system | |
| CN105854602A (en) | Combined device for washing tail gas and treating waste water of low-speed diesel engine of ship | |
| CN107344068B (en) | Flue gas seawater desulfurization and denitrification process integrating photocatalytic oxidation and photocatalytic aeration | |
| CN104772028B (en) | A kind of wet type marine exhaust integrated conduct method and device | |
| JP2022063837A (en) | Processing method of waste water simultaneously containing ammonia-nitrogen of high concentration and organic constructs | |
| KR20190004475A (en) | Integrated inert gas system having desulfurization function, method for removing sulfur oxides, and vessel having the same | |
| KR102162308B1 (en) | Water treatment apparatus using lamella structure | |
| SG178259A1 (en) | Emissions control system and method | |
| CN105498535A (en) | Method and device for removing nitrogen oxide in waste gas of marine diesel engine by use of sodium chlorite seawater solution | |
| CN106865840A (en) | A kind of ship tail gas and ballast water integrated processing system | |
| KR100808935B1 (en) | Waste water treating apparatus using plasma and photocatalyst | |
| CN210278766U (en) | Ship exhaust gas mixed desulfurization system | |
| KR102039717B1 (en) | Apparatus for reducing air pollutant | |
| KR101775118B1 (en) | Method for reducing water and air pollutant | |
| CN110642422A (en) | Ship desulfurization air-flotation circulating device, ship waste gas washing system and ship | |
| KR102027539B1 (en) | Apparatus for reducing air pollutant | |
| CN114797381B (en) | VOCs waste gas green treatment process capable of reducing carbon emission | |
| CN112933966B (en) | Ship flue gas photocatalytic oxidation desulfurization and reduction denitration process | |
| KR102039719B1 (en) | Apparatus for reducing air pollutant | |
| KR102324722B1 (en) | Photochemical Reaction Based Scrubber System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210608 |