CN210287083U - Advanced treatment device for marine domestic sewage - Google Patents
Advanced treatment device for marine domestic sewage Download PDFInfo
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- CN210287083U CN210287083U CN201921128488.0U CN201921128488U CN210287083U CN 210287083 U CN210287083 U CN 210287083U CN 201921128488 U CN201921128488 U CN 201921128488U CN 210287083 U CN210287083 U CN 210287083U
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Abstract
The utility model discloses a deep treatment device for marine domestic sewage, which is characterized in that the deep treatment device consists of a buffer tank, a biological activated carbon column, an ultraviolet sterilizer and a clear water tank, wherein the buffer tank is connected with a water inlet pipe at the bottom of the biological activated carbon column through a gas-liquid mixing pump by a pipeline, and a water outlet pipe at the top of the buffer tank is connected with the clear water tank through the ultraviolet sterilizer; the clear water tank is provided with a drainage pump, and the outlet of the clear water tank is respectively connected with a flushing pipe for performing back flushing on the activated carbon filter layer and a water outlet pipe of the discharging device. Compared with the prior art, the utility model have compact structure, equipment is small, has practiced thrift the boats and ships inner space, and the while operation is simple and easy, satisfies in the latest boats and ships domestic sewage discharge standard of IMO to the requirement of total nitrogen clearance, has guaranteed the stability of play water quality of water, and then has protected marine environment.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment technique and specifically relates to a marine domestic sewage's deep treatment device.
Background
With the development of shipping, the discharge of ship domestic sewage gradually becomes an important cause of water environment pollution. In the face of stricter discharge standards, the ship domestic sewage treatment device in China faces challenges, the ship domestic sewage treatment device still adopts a single biochemical method for treatment, the treatment efficiency of the grey water is low mainly aiming at the treatment process of traditional pollutants in ship black water, the advanced treatment requirement for efficiently removing the pollutants such as nitrogen, phosphorus and the like is difficult to realize, and the effluent is difficult to recycle. The existing IMO standard has no any regulation on the reuse of reclaimed water in ships, and domestic and foreign ship sewage treatment devices have no special sewage advanced treatment and reclaimed water reuse device, so that the demand of sewage recycling after advanced treatment exists for the problems that the volume of a fresh water tank is small and the sewage discharge requirement of partial sea areas is high.
At present, the common ship domestic sewage treatment technologies abroad mainly comprise a biochemical method and an electrochemical method. The problems existing in the prior art are as follows: the treatment device of the activated sludge method has large volume. Although the electrochemical treatment has a short residence time, the degree of mixing is insufficient, reducing the efficiency of removing contaminants. The conventional process cannot meet the latest ship domestic sewage discharge standard of IMO and the requirements of stable and reliable operation at present. Therefore, the effluent treated by the conventional process needs to continuously enter an advanced treatment device for treatment, and meets the requirements for advanced treatment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the not enough of prior art and the advanced treatment unit who provides a marine domestic sewage, adopt the biological activity charcoal device of integral structure, under active carbon and biomembrane combined action, the degradation pollutant, can further degree of depth get rid of aquatic COD, pollutants such as suspended solid, the clearance is high, satisfy the requirement to total nitrogen clearance in the IMO latest boats and ships domestic sewage discharge standard, and simultaneously, the microorganism can change and improve the active carbon, thereby prolong the life cycle of active carbon, reduce the filtering pond running cost, easily realize automatic control, the operation management is convenient, compact structure, small equipment, the device takes up an area of fewly, the cabin capacity in saving boats and ships sewage cabin, especially, be fit for the domestic sewage treatment of each type boats and ships.
Realize the utility model discloses the technical scheme of purpose is: the advanced treatment device for the marine domestic sewage is characterized by comprising a buffer tank, a biological activated carbon column, an ultraviolet sterilizer and a clear water tank, wherein the buffer tank is connected with a water inlet pipe at the bottom of the biological activated carbon column through a gas-liquid mixing pump through a pipeline; the activated carbon filtering layer is arranged on the water distribution layer through a filtering plate; the clear water layer is arranged on the activated carbon filtering layer through a screen; the clear water tank is provided with a drainage pump, and the outlet of the clear water tank is respectively connected with a flushing pipe for performing back flushing on the activated carbon filter layer and a water outlet pipe of the discharging device.
The filter plate is provided with a plurality of long handle filter heads which are uniformly distributed.
And the clear water layer is provided with a water outlet weir and a water outlet pipe.
The water outlet weir is in a sloping plate structure.
The water inlet quality of the biological activated carbon column is as follows: COD is less than or equal to 125 mg/L; BOD5 is less than or equal to 25 mg/L; TSS is less than or equal to 35 mg/L; the total nitrogen is less than or equal to 20 mg/L; the total phosphorus is less than or equal to 1.0 mg/L; pH: 6 to 8.5.
Compared with the prior art, the utility model have compact structure, equipment is small, and occupation of land is few, and easy operation can open at any time and stop, has practiced thrift the boats and ships inner space, and the while operation is simple and easy, satisfies in the latest boats and ships domestic sewage discharge standard the requirement to total nitrogen clearance, has guaranteed the stability of play water quality of water, and then has protected marine environment.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of a structure of a bioactive carbon column.
Detailed Description
Referring to the attached figure 1, the utility model comprises a buffer tank 2, a biological activated carbon column 4, an ultraviolet sterilizer 5 and a clear water tank 6, wherein the buffer tank 2 is connected with a water inlet pipe at the bottom of the biological activated carbon column 4 through a gas-liquid mixing pump 3 by a pipeline, and a water outlet pipe at the top of the biological activated carbon column 4 is connected with the clear water tank 6 through the ultraviolet sterilizer 5; the clean water tank 6 is provided with a drainage pump 7, and the outlet of the drainage pump 7 is respectively connected with a flushing pipe 18 for performing back flushing on the activated carbon filter layer 12 and a water outlet pipe 8 of a discharging device; and the clear water layer 13 is provided with a water outlet weir 16 and a water outlet pipe 9.
Referring to the attached figure 2, the biological activated carbon column 4 consists of an activated carbon filter layer 12 arranged in the middle, a clear water layer 13 arranged at the top and a water distribution layer 10 arranged at the bottom; the activated carbon filter layer 12 is arranged on the water distribution layer 10 through a filter plate 11; the clear water layer 13 is arranged on the activated carbon filtering layer 12 through a screen 15; the effluent weir 16 is of an inclined plate structure, so that the content of suspended matters in treated effluent can be further reduced; the filter plate 11 is provided with a plurality of long handle filter heads 14 which are uniformly distributed.
Referring to fig. 1, the present invention operates as follows: the marine domestic sewage is subjected to secondary sewage treatment, and the COD of the marine domestic sewage is less than or equal to 125 mg/L; BOD5 is less than or equal to 25 mg/L; TSS is less than or equal to 35 mg/L; NH (NH)3-N is not required; the total nitrogen is less than or equal to 20 mg/L; the total phosphorus is less than or equal to 1.0 mg/L. The domestic sewage for the ship treated by the secondary sewage enters the buffer tank 2 through the sewage pipe 1, is pumped into the bioactive carbon column 4 through the gas-liquid mixing pump 3, and achieves the purpose of uniform water distribution under the action of the long-handle filter head 14. Meanwhile, the gas-liquid mixing pump 3 can pump air into the bioactive carbon column 4 to provide oxygen for the bioactive carbon column 4. The biological activated carbon column 4 combines the adsorption of activated carbon and biomembrane method, on one hand can make the biomembrane adhere to it and grow through having great specific surface area because the activated carbon, can get rid of pollutants such as partly suspended solid through the adsorption of the two, on the other hand when the sewage through oxygenating passes through the activated carbon with certain velocity of flow, the microorganism in the biomembrane absorbs the organic matter that decomposes aquatic, makes sewage obtain purifying. ToThe treated water flows out through an effluent weir 16 of an inclined plate structure of the clear water zone 13, and partial suspended matters in the water are further removed. The effluent treated by the biological activated carbon column 4 passes through an ultraviolet sterilizer 5 to kill colon bacillus in the water, so that the sewage reaches the reuse water standard. The sterilized water enters the clear water tank 6 to be used as source water for flushing toilets, flushing decks and backwashing. The outlet water of the clean water tank 6 is pumped into a recycling water tank on the ship by a drainage pump 7. In order to keep the biomembrane of the biological activated carbon column 4 updated and prevent aging, back washing is carried out regularly. And during backwashing, the water inlet pipe and the water outlet pipe of the biological activated carbon column 4 are closed, and meanwhile, the gas-liquid mixing pump 3 stops water inlet. The reclaimed water in the clean water tank 6 is pumped into the biological activated carbon column 4 through the drainage pump 7 to wash and backflush the activated carbon filter layer 12, so as to achieve the purposes of updating the biological membrane and regenerating part of the activated carbon, thus the device maintains higher treatment capacity, and the water after backflushing is discharged out of the device through the drainage pipe 9. Because the density of the active carbon is low, a fluidized bed is easily formed during back washing to cause partial active carbon to be discharged along with back washing water, in order to prevent the carbon leakage phenomenon, a clear water layer 13 at the top of the biological active carbon column 4 is provided with a detachable screen 15, and the mesh number of the screen is determined according to the particle size of the selected active carbon. And after backwashing for a period of time, the backwashing process is finished. At the moment, the backwashing water inlet and outlet pipelines are closed, the sewage water inlet valve and the reclaimed water outlet valve of the biological activated carbon column 4 are opened simultaneously, the gas-liquid mixing pump 3 recovers to feed water into the biological activated carbon column 4, the pipeline from the water outlet pipe 8 to the shipboard recycling water tank recovers to an open state, and the whole device recovers to a normal treatment state.
The utility model discloses an active carbon + biomembrane process technology, device need cultivate mud in advance, adopt the manual work to hang the membrane, for the activity of maintaining the biomembrane, adopt gas-liquid mixture pump 3 to feed water, and a certain amount of air is gone into to the pump simultaneously, lasts and provides oxygen for the biomembrane. The utility model discloses can couple with boats and ships sewage treatment main part device, it is whole to make two devices form an organic, both can integrate, can arrange alone again, satisfy the requirement of reuse of reclaimed water, realize water cyclic utilization and zero release, the device main part adopts biological activity charcoal, utilize the high specific surface area of active carbon, the characteristics of high porosity, can enrich the microorganism, adsorb aquatic dissolubility organic matter rapidly, for the gathering and the reproduction of microorganism provide good place, the organic pollutant that the microorganism adsorbs on the active carbon degrades. Meanwhile, the microorganism can change the physical adsorption balance of the activated carbon, so that the activated carbon can be regenerated, the service cycle of the activated carbon is prolonged, the operation cost of the filter tank is reduced, and the effluent after advanced treatment of the device can be used for various reclaimed water purposes such as flushing a toilet and flushing a deck.
The present invention is further described above, but not limited to this patent, and all equivalent implementations of the present invention are intended to be encompassed by the scope of the claims of this patent.
Claims (4)
1. The advanced treatment device for the marine domestic sewage is characterized by comprising a buffer tank (2), a biological activated carbon column (4), an ultraviolet sterilizer (5) and a clear water tank (6), wherein the buffer tank (2) is connected with a water inlet pipe at the bottom of the biological activated carbon column (4) through a gas-liquid mixing pump (3) by a pipeline, a water outlet pipe at the top of the buffer tank is connected with the clear water tank (6) through the ultraviolet sterilizer (5), and the biological activated carbon column (4) consists of an activated carbon filter layer (12) arranged in the middle, a clear water layer (13) at the top and a water distribution layer (10) at the bottom; the activated carbon filtering layer (12) is arranged on the water distribution layer (10) through a filtering plate (11); the clear water layer (13) is arranged on the activated carbon filtering layer (12) through a screen (15); the clean water tank (6) is provided with a drainage pump (7), and the outlet of the clean water tank is respectively connected with a flushing pipe (18) for performing back flushing on the activated carbon filtering layer (12) and a water outlet pipe (8) of a discharging device.
2. The advanced treatment device for the domestic sewage of the ship according to the claim 1 is characterized in that a plurality of long-handle filter heads (14) which are evenly distributed are arranged on the filter plate (11).
3. The advanced treatment device for marine domestic sewage according to claim 1, wherein the clear water layer (13) is provided with a water outlet weir (16) and a water outlet pipe (9).
4. The advanced treatment apparatus for marine domestic sewage according to claim 3, wherein the effluent weir (16) has a sloping plate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921128488.0U CN210287083U (en) | 2019-07-18 | 2019-07-18 | Advanced treatment device for marine domestic sewage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921128488.0U CN210287083U (en) | 2019-07-18 | 2019-07-18 | Advanced treatment device for marine domestic sewage |
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| CN210287083U true CN210287083U (en) | 2020-04-10 |
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| CN201921128488.0U Active CN210287083U (en) | 2019-07-18 | 2019-07-18 | Advanced treatment device for marine domestic sewage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240364A (en) * | 2019-07-18 | 2019-09-17 | 中船第九设计研究院工程有限公司 | A kind of advanced treatment apparatus of marine domestic sewage |
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- 2019-07-18 CN CN201921128488.0U patent/CN210287083U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240364A (en) * | 2019-07-18 | 2019-09-17 | 中船第九设计研究院工程有限公司 | A kind of advanced treatment apparatus of marine domestic sewage |
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