CN202116396U - Offshore waste water treatment system - Google Patents
Offshore waste water treatment system Download PDFInfo
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- CN202116396U CN202116396U CN2011201992326U CN201120199232U CN202116396U CN 202116396 U CN202116396 U CN 202116396U CN 2011201992326 U CN2011201992326 U CN 2011201992326U CN 201120199232 U CN201120199232 U CN 201120199232U CN 202116396 U CN202116396 U CN 202116396U
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Abstract
The utility model relates to an offshore waste water treatment system, which comprises a waste water collecting tank, an impregnated pump, a mixing pump, an electrolytic tank, an electric coagulation tank, a controlling system, a degassing room, a main depositing tank, a second clarifying tank, a turbidimeter, a dechlorinating unit, a self-cleaning type filter and an effluent discharging pump, wherein the impregnated pump is connected to the waste water collecting tank, the mixing pump is adjacent to the impregnated pump and is connected to the waste water collecting tank, the electrolytic tank is configured for receiving the waste water impregnated by the impregnated pump, the electric coagulation tank is adjacent to the electrolytic tank, the controlling system can be connected to the electrolytic tank and the electric coagulation tank in an operable way, the degassing room is connected to the electric coagulation tank by a pipeline, the main depositing tank is adjacent to the degassing room, the second clarifying tank is communicated with the fluid in the depositing tank, the depositing tank and the clarifying tank are respectively provided with a pair of cone-shaped side walls and at least one bottom opening used for abstracting sludge, the turbidimeter is mounted on a public sludge discharging pipe, the public sludge discharging pipe is connected to the depositing tank and the clarifying tank, the dechlorinating unit comprises a chemical substance injection pump, and the self-cleaning type filter is used for filtering the effluent that comes out of the dechlorinating unit. The offshore waste water treatment system can realize the site processing for the offshore waste water and is easy to assemble.
Description
Technical field
The utility model relates generally to Waste Water Treatment, particularly the site disposal of marine waste water and purification system.
Background technology
The site disposal of waste water is generally being used for the limited place of the arrival of municipal water processing plant or facility of equal value.The example in this type place comprises boats and ships and offshore drilling unit.In such place, waste water flow through the usually biology or the fermentation unit of boat-carrying get into holding tank then.When the elute in the holding tank reaches specified level, can it be pumped to the sterilization unit.
The subject matter of the site disposal of waste water is to reduce biological oxygen demand (BOD), COD (COD), and is suspended in the particulate matter in the water, i.e. total suspended solid (TSS).Even the particle to such floods, carry out the degraded of biology or fermented type afterwards again, it also is less can such particulate matter being reduced to the situation that can be considered environmentally safe restriction.
The utility model content
The purpose of the utility model comprises provides the marine Waste Water Treatment of handling the waste water of boat-carrying on marine ships and/or the immobilized offshore platforms; This system can reach the biological oxygen demand in the marine waste water (BOD), COD (COD) total suspended solid (TSS) and reduce to environmentally safe level.
Aspect of the utility model, a kind of marine Waste Water Treatment is provided, said system comprises: waste water collection tank; Be connected to the dipping pump of waste water collection tank; Adjacent to the mixing pump of dipping pump, said mixing pump is also connected to waste water collection tank; Be configured to receive electrolyzer through dipping waste water from the dipping pump; Electricity adjacent to electrolyzer coagulates the pond; Be operably connected to electrolyzer and electric system of coagulating the pond; Be connected to the degas chamber that electricity coagulates the pond by plumbing installation; Primary precipitate groove adjacent to degas chamber; Second clarifying tank that is communicated with the settling bath fluid, said settling bath and clarifying tank have a pair of tapered sidewalls separately and are used at least one bottom opening that mud extracts; Be installed in the turbidometer on the public mud vent pipe, said public mud vent pipe is connected to settling bath and clarifying tank; The dechlorination unit, said dechlorination unit also comprises the chemical substance injection pump; Be used for carrying out filtering self-cleaning strainer to leaving the unitary elute of dechlorination; And elute overboard pump.
Randomly, this sea Waste Water Treatment also comprises and is coupled to air and the aqueous cleaner that electricity coagulates the pond.
Randomly, this sea Waste Water Treatment also comprises: the sea water supply source that is used for supplying with to electrolyzer seawater; And the fragment dish, it is used for before supplying with seawater to electrolyzer, collecting the fragment that appears at seawater.
Randomly, in this sea Waste Water Treatment, said degas chamber also comprises blower and breather, to allow and will arrive atmosphere as the resultant gas release of the electrolytic process in the electrolyzer.
One or more embodiments of the utility model relate to the method and system that is used to handle the waste water of boat-carrying on marine ships and/or the immobilized offshore platforms.In an embodiment of the utility model, a kind of method that is used for handling waste water comprises that the dirt of pumping waste water starches waste water collection tank.Waste water comprises raw sewerage, Heisui River, buck, food waste and combination thereof.The dirty slurry of waste water also comprises the solid particulate of suspension, organic and inorganic substance, bacterium and entrained gas.The exhausted water level sensor that is installed in the waste water collection tank is kept watch on the waste water liquid level in the waste water collection tank.When the higher thresholds liquid level that reaches predetermined was starched in the waste water dirt, what this sensor-triggered was operated began automatically.In the time of under the waste water liquid level is fallen predetermined low threshold value liquid level, stop the dirty slurry of pumping waste water.The dirty slurry of waste water is transmitted with the dipping SS by the dipping pump.During dipping, solid particulate is carried out fine grinding, thereby produce the particle of reduced size with large surface area.The dirty slurry stream of warp dipping can turn to gets back to waste water collection tank.With starching with pipeline transmission to electrolyzer of remainder through the dipping dirt.Electrolyzer uses the seawater of controlled volume or salt solution to carry out oxidation and sterilization to starching through the dipping dirt.Because the particle of meticulous dipping has bigger surface-area, in electrolyzer, oxidation and the sterilization of carrying out through the dirty slurry of dipping significantly improved.To before the dirty slurry of oxidation and disinfectant coagulates the pond with pipeline transmission to electricity, skimmer added to wherein.Can coagulate caking or flocculation in the pond at electricity through the disinfectant suspended solids.The dirt slurry that flocculates is sent to the primary precipitate groove contains wadding mud and clarifying basically supernatant with separation.Basically clarifying supernatant is piped to second clarifying tank to help further separated sludge and clarifying basically supernatant.Mud from settling bath and clarifying tank is also discharged at the bottom settlings of groove.Keep watch on the turbidity level of the mud of discharging continuously.When turbidity level equal to be scheduled to than low value the time, automatically close valve on the mud vent pipe to stop the discharge of mud.Basically clarifying supernatant can be used as handles back elute discharge.
Turn to and get back to can mix with the dirty slurry of the waste water in this receiving tank in the waste water collection tank through the dirty slurry stream of dipping.This keeps the intimate mixing in the waste water collection tank.In one embodiment, mixing pump can be adjacent to dipping pump location so that mixing and recycling are starched with the waste water dirt in the waste water collection tank through the dirt slurry stream that floods continuously.
The seawater of controlled volume can mix with the dirt slurry of dipping when getting into electrolyzer.The volume of the seawater of introducing can depend on the concrete processing power of marine Waste Water Treatment.Can be through the dirt slurry through dipping being carried out oxidation and sterilization in the inner electrochemical reaction that takes place of electrolyzer.In an embodiment of the utility model, starch and to contact with the oxygenant in the electrolyzer through the dirt of dipping.
To be delivered to electric coagulating in the pond through oxidation and the dirty slurry of disinfectant so that the solid of warp dipping and other suspended solids caking.Electricity coagulates the pond can be strengthened through disinfectant waste water stream with metallic particles, and metallic particles can serve as nucleation site and organic substance forms flocculation.Along with successive uses, the electrode that electricity coagulates in the pond can be covered by solid particulate and throw out.In an embodiment of the utility model, termly electricity is coagulated the pond and carry out automatic empty G&W cleaning.Cleaning can wash away the particulate pollutant of covering from electrode.To clean content and be piped to the primary precipitate groove.
In one or more embodiments of the utility model, this Waste Water Treatment can also comprise and operationally is coupled to the system that inner direct supply, electrolyzer and electricity coagulate the pond.This system can be configured to coagulate the pond to electrolyzer and/or electricity provides wave to offer the amount that electrolyzer and electricity coagulate the volts DS (or galvanic current) in pond to control power supply internally.
Before discharging clarifying basically supernatant, can handle so that residual chlorine is neutralized to it with one or more chemical substances and be lower than 0.5mg/L.In an embodiment of the utility model, use volume pump that the reductive agent of optimal amount is injected clarifying basically supernatant.This reductive agent can be selected from sodium sulfite anhy 96, S-WAT, Sulfothiorine and sulfurous gas.
In one or more embodiments of the utility model, the elute of discharge can comprise the biological oxygen demand (BOD) that is lower than 25mg/L, the total suspended solid (TSS) that is lower than 35mg/L, the COD (COD) that is lower than 120mg/L and the intestinal bacteria that are less than 100cfu/100ml.
In another embodiment of the utility model, will arrive degas chamber with particulate pollutant with pipeline transmission from dirt slurry and the mud of during the empty G&W of robotization cleans, removing that electricity coagulates the flocculation in pond.The gas that produces during the electrolytic reaction and other entrap bubble of from dirt slurry, emitting are by diluted with ambient air and be discharged in the atmosphere.Can use hair drier to force ambient air to get into ventpipe.
In another embodiment of the utility model, can be discharged in the polymeric kettle leaving the electric dirt slurry that coagulates the flocculation in pond.Can one or more cationic polymerss be incorporated in the dirt slurry of flocculation to form accumulative caking solid group.Can use filtering unit to filter accumulative caking solid group.
In another embodiment of the utility model; A kind of system that is used for handling waste water comprises waste water collection tank, can grind the solid dipping pump that is suspended in waste water, (this electrolyzer comprises reaction chamber, be positioned at the anode of reaction chamber and be positioned at the negative electrode of reaction chamber for the mixing pump adjacent to the dipping pump, electrolyzer; And be used for electrolyzer is provided the device of electric power), the electricity that is communicated with the electrolyzer fluid coagulate the pond, adjacent to electricity coagulate the pond settling bath, be connected to settling bath clarifying tank, be used to detect discharge mud turbidity level turbidometer, comprise the dechlorination unit of chemical substance injection pump or volume pump and elute overboard pump.In an embodiment of the utility model, settling bath is connected to degas chamber.This degas chamber comprises that hair drier and ventilation plant are to allow to discharge the gas that during electrolysis, produces of dilution.In an embodiment of the utility model, optional mud receiving tank is positioned at settling bath and clarifying tank below.
In an embodiment of the utility model, Waste Water Treatment comprises the rigid foundation framework, and wherein said rigid foundation chassis configuration also is arranged as to carry the weight of Waste Water Treatment.In another embodiment of the utility model, Waste Water Treatment comprises and is connected to air and the aqueous cleaner that electricity coagulates the pond.In the another embodiment of the utility model, the sea water supply source is connected to electrolyzer.
The marine Waste Water Treatment of the utility model can be realized the site disposal of marine waste water, intervenes down limited operator and automatically works, and be easy to install.
Description of drawings
Fig. 1 is the schema that illustrates according to the Waste Water Treatment of the utility model embodiment.
Embodiment
Each claim of the application limits an independent utility model, be to differentiate the purpose of infringement, this utility model be regarded as comprising with claim in the various elements put down in writing or the equivalence of qualification.Depend on context, hereinafter can only refer to specific specific embodiments quoting in some cases of " the utility model ".In other cases, be appreciated that to quoting of " the utility model " being referred to one or more but be not necessarily the theme of whole claims records.
The various terms that use among this paper illustrate below.Limit hereinafter for the scope of the term that in claim, uses, tackle it and provide the wideest definition, such being defined in when submitting the application provided term by those skilled in the art, in the open file that is reflected in printing and the patent of issuing.
The embodiment of the utility model relates to the method and system that is used to handle the marine waste water of boat-carrying on boats and ships and/or the immobilized offshore platforms.As used herein, term " boat-carrying (onboard) " refers in the same facility that produces waste water, purify (than handling such water away from the place that produces the place, such as municipal water processing plant).
Fig. 1 illustrates concrete non-limiting embodiments, and the system 10 that is used to handle marine waste water of boat-carrying on marine ships or the immobilized offshore platforms is shown.System 10 comprises that waste water collection tank 12, dipping pump 14, mixing pump 13, electrolyzer 16, electricity coagulate pond 18, settling bath 22, clarifying tank 24, the dechlorination unit 28 that comprises chemical substance injection pump 29 and elute overboard pump 30.In Waste Water Treatment 10, waste water is handled and purified.Waste Water Treatment 10 is supported and is arranged on the common rigid base (not shown).After purifying, can be with being discharged to open water from marine ships through the elute of dechlorination 64.In one or more embodiments, can provide self-cleaning strainer 34 it to be filtered before the open water will being discharged to being used for through the elute of dechlorination.One or more embodiments of the utility model can produce have the intestinal bacteria that are no more than 100cfu/100ml, the dechlorination wastewater effluent of the COD (COD) of the biological oxygen demand (BOD) of the total suspended solid (TSS) of 35mg/L, 25mg/L and 120mg/L.The processing power scope of marine Waste Water Treatment 10 can be 3.0 to 65.0 cubic metres/day.This sea Waste Water Treatment 10 can need little installation floor space or have little system's floorage (footprint).Marine waste water system 10 can 24 (hour) * 7 (my god) work, collect and handle the waste water of collection continuously.In an embodiment of the utility model, marine Waste Water Treatment 10 is automatically worked under can intervening limited operator.
Marine waste water circulation often comprises sewage, Heisui River, buck and combination thereof.As used herein, term " Heisui River " refers to be comprised the water that the slop of intestinal bacteria and other bacterium pollutes.As used herein, term " buck " refers to not have the excremental used water of human body, such as the water from tank and shower.Usually, marine waste water by poisonous and nontoxic organic and inorganic pollutant, comprise the little and big suspended solids pollutent of Mierocrystalline cellulose, sand, gravel, human-body biological matter and emulsion and gas composition.A kind of in the composition of the most often measuring in the waste water is BOD or BOD.The required oxygen amount of microbiological degradation organic pollutant is called as BOD or BOD.Five days BOD or BOD
5Oxygen amount through being consumed during five days by mikrobe is measured, and is the most common tolerance of biodegradable organic quality or sewage intensity in the sewage.The sewage that BOD is high possibly exhaust the oxygen that receives in the waters, causes the fish kills and the ecosystem to change.
The wastewater treatment of boat-carrying is used in those the limited positions of acquisition to the facility of municipal water processing plant or equivalence usually.The example of such position is boats and ships and offshore drilling unit.
Get back to Fig. 1, the waste water dirt is starched with pipe-line transportation 50 in waste water collection tank 12.Waste water collection tank 12 comprises that exhausted water level sensor (not shown) is to confirm the waste water liquid level.When Waste Water Treatment 10 was set at automatic mode and reach predetermined threshold value liquid level, this liquid level sensor can automatically be initiated the beginning of Waste Water Treatment 10 and stopped sequence.In another embodiment, can manually begin wastewater treatment.
When liquid level sensor detected waste water in the waste water collection tank 12 and reaches predetermined higher thresholds liquid level, the dirty slurry of waste water can transmit 52b by dipping pump 14.Solid during dipping pump 14 grinds subtly and is suspended in that waste water is dirty and starches is to reduce its particle size.The particle that reduces has significantly bigger area in the dirt slurry.The dirt slurry stream of warp dipping can turn to gets back to 53 waste water collection tank 12.Through the dirty slurry stream of dipping continuously with waste water collection tank 12 in the dirty slurry of waste water mixes with the formation homogenizing mixture.Mixing pump 13 is adjacent to dipping pump 14 location.The dirty slurry of waste water of dirty slurry of waste water and warp dipping can send mixing pump 13 to by 52a.Mixing pump 13 is worked with the dirty slurry of the waste water in recycling 51 waste water collection tank 12 with through the dirty slurry of the waste water of dipping continuously, thereby keeps the waste water mixture of homogeneous.
With remainder to be piped to electrolyzer 16 through the dirty slurry 54 of dipping through the calibration orifice plate harmless through the dirty slurry of oxidation and disinfectant to produce, and therefore do not need the operator to be exposed under the bacterium such as intestinal bacteria of danger.Electrolyzer 16 can comprise reaction chamber, is positioned at the anode of reaction chamber, is positioned at the negative electrode of reaction chamber, and is used between anode and negative electrode, transmitting galvanic device.Can expect that any electrolyzer well known by persons skilled in the art can be as the electrolyzer in the embodiment described herein.
Through the dirt slurry of dipping can be in electrolyzer 16 catalytic oxidation agent source to carry out disinfection and to neutralize and reduce BOD to appearing at wherein intestinal bacteria.Because the particle through dipping has bigger surface-area in electrolyzer 16, oxidation significantly is enhanced with sterilization.In an embodiment of the utility model, oxygenant can be by seawater or salt water generates.Occurring when the dirt of dipping is starched, can producing this oxygenant through electrolyzer 16 through the seawater 55 that transmits from source of seawater 15.The seawater of controlled volume can be in the time will being pumped into electrolyzer 16 through the dirt slurry 54 of dipping through the calibration orifice plate mix with starching through the dirt of dipping, perhaps can be incorporated into individually in the electrolyzer 16 through filter and the flow director (not shown) seawater with controlled volume.This flow director is restricted to preset value based on the concrete processing power of Waste Water Treatment 10 with seawater flow.Can provide fragment dish 36 to be used for before seawater 55 being passed to electrolyzer 16, the collecting any big fragment that appears at seawater 55.
Seawater can be starched through the dirt of dipping by the ratio contact at least about 1: 1.In the alternate embodiment of the utility model, can use salt brine solution and mix through the dirt slurry of dipping, this salt brine solution comprises the water with the salt that is enough to accomplish electrolysis and form oxygenant.In dirt when slurry of contact through dipping, oxygenant provides the reaction mixture of the pH value that for example has about 6 to about 9 pH value or about 6.5 to about 8.
Can carry out oxidation and sterilization to dirt slurry through the electrochemical reaction in the electrolyzer 16 through dipping.This electrochemical reaction is the result of volts DS that custom-designed anode and negative plate (electrode) in the electrolyzer 16 are applied.Flow between charged electrode from the dirt slurry 54 through dipping of dipping pump 14 through pipe-line transportation.Seawater provides sodium-chlor and water and is used as the ionogen of the galvanic current between anode and negative plate.Villaumite in the seawater by electrolytic decomposition to form the mixed oxide of Youxiaolin and trace.Electrochemical reaction can be killed at harmful intestinal bacteria and oxidation of organic compounds in the dirty slurry of dipping with the oxide compound that is produced.Single pass electrolyzer 16 can be killed almost 100% the residual bacterium that appears in the waste water and the organic cpds of oxidation 90% to 95%.
In another embodiment of the utility model, oxygenant can continue and another container, such as contacting through the dirty slurry of dipping in pipeline or the groove (not shown).Duration of contact can be for example few to 2 minutes.
The residual oxygenant that can comprise minimum through the dirty slurry of oxidation and disinfectant.In one embodiment, can comprise that through oxidation and the dirty slurry of disinfectant about 1mg/L is to the residual oxygenant of about 250mg/L and residual chlorine.
In another embodiment of the utility model, can carry out oxidation to dirt slurry by any method known to those skilled in the art, such as the dirt slurry through dipping is contacted with ozone through dipping.It should be noted that the oxidation of carrying out in the oxidation pond can utilize the stronger oxygenant of oxygenant that utilizes than in electrolyzer 16.
To coagulate pond 18 through pipe-line transportation to electricity through oxidation and the dirty slurry 56 of disinfectant.To carrying out electrolysis-coagulation, cause the solid particulate flocculation or the caking that are suspended in wherein through oxidation and the dirty slurry of disinfectant.Electricity coagulates the pond and is known in the prior art and can uses various anodes and the negative electrode geometrical shape, comprises battery lead plate, ball, fluidized-bed spheroid, wire cloth, bar and flexible pipe.Electricity coagulate process based on the principles of science relate to of the response of contaminated wastewater thing for oxidation of forceful electric power inductive and reduction reaction.This process can be removed and surpass some heavy metal cations of 99% and can kill the mikrobe in the water by electricity.This process also makes charged colloidal precipitation and removes a large amount of other ion, colloid and emulsion.
In an embodiment of the utility model, introduce galvanic current through battery lead plate and coagulate starching through oxidation and disinfectant be dirty of collecting in the pond 18 to electricity.System 32 also can be operatively attached to electricity and coagulates pond 18 and be configured to coagulate pond 18 to electricity wave is provided, and this wave is controlled power supply internally coagulates amount from the electric current that the battery lead plate in pond 18 provides to electricity.Electrode can be processed by iron or aluminium.Metals ion breaks away from electrode and gets into through oxidation and the dirty slurry of disinfectant.These metals ions can form MOX, and these MOXs attract unsettled solid particulate with the electric mechanical mode.When this takes place, the electrically charged entity of solid form will lump or flocculate and can separate with supernatant.Can also residual chlorine in the dirt slurry electrolytically be destroyed at electricity and coagulate in the pond 18.
Some solid particulates and pollutent can coagulate accumulation in the pond 18 at electricity along with the time.In an embodiment of the utility model, electricity coagulates pond 18 can be connected to air washer 17a and aqueous cleaner 17b.Can be termly cleaning combination 57c that 57b or empty G&W clean with air purge 57a, the water of robotization cleans electricity and coagulates pond 18 to wash away cumulative particulate pollutant on the electrode.The empty G&W of the combination of robotization cleans 57c can carry out in each cycle period of being filled or recharged by the dirty slurry 50 of waste water when waste water collection tank 12, or during the normal running of Waste Water Treatment 10, carried out.Cleaning can be carried out forward and backward on each direction in brief predetermined amount of time.To clean content 58 and redirect to degas chamber 20.
Can a spot of skimmer 67 be added in oxidation and the dirty slurry of disinfectant to minimize or to eliminate the foam in the primary precipitate groove 22 before oxidation and the electric pond 18 with fixed attention of the dirty slurry entering of disinfectant.Skimmer can also help to remove the gas in the dirt slurry that leaves the electric flocculation in pond 18 with fixed attention.
The dirt slurry 58 of flocculation is piped to degas chamber 20.Degas chamber 20 utilizes known falling liquid film technology to assist in removing entrap bubble.In an embodiment of the utility model, use blower to force ambient air 61 to get into the ventpipe of degas chamber.The gas that produces during this diluted with ambient air entrap bubble and the electrolysis.The air 65 of dilution is discharged in the atmosphere.Get into settling bath 22 through the dirty slurry of the flocculation of the degassing, wherein contain wadding sludge settling or precipitable in the bottom.
Because the solid of mud or caking is heavier, it separates and is deposited in the bottom of settling bath 22 with clarifying supernatant basically, makes the upwards displacement of clarifying basically supernatant.Can mud 59a be discharged to optional mud receiving tank (not shown).Basically clarifying supernatant 60 can be delivered in the clarifying tank 24 that is communicated with settling bath 22 fluids.Can allow clarifying basically supernatant in clarifying tank 24, further to precipitate.Can allow residual sludge settling in clarifying tank 24 bottoms.Residual mud 59b can also be discharged to optional mud receiving tank.
Settling bath 22 and clarifying tank 24 all have sidewall 22a, the 24a of pair of angled or taper.Heavier mud glides and is deposited to the bottom of groove 22,24 along sidewall 22a, 24a.Both also comprise the bottom opening that is connected to vent pipe settling bath 22 and clarifying tank 24.These vent pipes can be united, and associating or the common vent pipe can extract or remove the mud 59c of flocculation in settling bath 22 and the clarifying tank 24.
Extracting of mud 59c can be by the one or more valve controls in the public vent pipe.When optimum low value that the turbidity level of the mud of discharging equals to be scheduled to, can automatically close this valve and stop further mud 59c and discharge.
Get back to Fig. 1, in an embodiment of the utility model, turbidometer 26 is installed on the public vent pipe.Turbidimeter or turbidometer are measured clarification of water degree or turbidity.Turbidity is the accumulative water characteristic that is caused by the suspended particle in the water.Under high density, turbidity can be perceived as muddiness in the water, be vaporific or do not clarify.Nephelometric analysis is the opticmeasurement to scattered light.When light passed through water sample, the particle in the light path changed direction of light, makes light generation scattering.If turbidity is lower, most of light will continue on inceptive direction.Light by the particle scattering allows to detect the particle in the water.When the turbidometer 26 on being installed in public vent pipe detected the low scale of programming in advance, the valve on the public vent pipe automatically cut out.This will stop further mud 59c and discharge.Mud from clarifying tank 24 can make up with the mud from settling bath 24 to form the total solids waste streams of 2-3wt%, and it will be shed from Waste Water Treatment 10 by system operator.Basically clarifying supernatant 62 can be used as treated or the disinfectant elute is discharged.
In another embodiment of the utility model, mud 59c can be discharged to polymeric kettle or container (not shown) and be collected.Can be manually or cationic polymers is got in the polymeric kettle.But the dehydration property of the mud that this polymkeric substance can promote to flocculate produces one or more big polymerization groups.These big polymerization groups can comprise from 8% solid to the higher per-cent more than 25%.Compare with the mud of flocculation drying and have the weight that reduces of polymerization group.Advantageously, comprise that the volume of the mud of polymerization group can reduce as many as 75%, and then can reduce and processing and the related cost of disposal elute.Can in the filtering unit (not shown), filter polymerization group.
Filtering unit can comprise that multi-drop filters and drying unit.Filtering with drying unit is to be used for easily and the compact unit of handling the granular wastes of catching safely, and this is different from existing Waste Water Treatment, the latter need a plurality of equipment so that identical net result to be provided.In one embodiment, multi-drop filtration and drying unit comprise the support grid of the filter bag that is configured to suitable multiple industrial standards.Comprise fluid that introducing will handle in filter bag, make the fluid dehydration, one or more processes of compression and dry particulate matter are the scene realizations for the operation that multi-drop filters with drying unit.Multi-drop filters with drying unit and comprises that also special filter bag is removed or the discharging station, is used to remove comprise polluting but drying and do not have the filter bag of liquid of compressing grains material.Through using a transparent cover and safety interlock mechanism to discharge station operation lid at filter bag, the operator is controlled to the exposure of waste water disposal facility intrinsic bio-hazard.When multi-drop filters with drying unit work, remove and polluted or the exhausted filter bag is also replaced with clean filter bag.
In another embodiment of the utility model, can mud 59c be discharged to the centrifugal unit (not shown).Can centrifugally realize solid/liquid separation and need not add polymkeric substance through using so that particle aggregation and then filter.The solid (solid of 2-3wt%) that comprises caking from the sludge stream 59c of settling bath 22 and clarifying tank 24 discharges; And, it is further separated to form two isolating streams: lack the solid liquid flow relatively and have solid mud with interstitial water greater than 10wt% because it is enough heavy.The solid ejecta is regarded as lifeless matter harm and it can merge with normal rubbish/waste material then.Can use special inside scraper physically from whizzer, to remove solid and solid is fallen in the container.This container can comprise the waterproof board that is used to operate.Centrifugal unit can in batch mode, remove solid and it can also comprise the recycle tank of the inlet flow that 2-3wt% is provided.
Get back to Fig. 1, Waste Water Treatment 10 can also comprise dechlorination unit 28.Dechlorination unit 28 comprises chemical substance injection pump or volume pump 29.One or more chemical substances that can be through adding optimal amount are carried out dechlorination to clarifying supernatant 63 basically.In one embodiment; Sodium sulfite anhy 96, S-WAT, Sulfothiorine or sulfurous gas can be injected in the clarifying basically supernatant 63 with finite concentration by volume pump 29, and this concentration guarantees that cl content satisfies International Maritime Organizaton about further not handling the requirement of the resolution MEPC159 (55) that just is discharged into the elute in the ocean environment in the clarifying basically elute.Through the elute of dechlorination can be environmental safety and do not have residual chlorine basically.Elute through dechlorination can be discharged to outboard with gravity through pipeline.As shown in Figure 1, system 10 can comprise that the centrifugal overboard pump 30 of stainless steel will be discharging 64 to outboard through the elute of dechlorination.In one or more embodiments of the utility model, can carry out additional filtering be discharged to outboard by pump 30 before through self-cleaning strainer 34 through the elute of dechlorination.The elute of discharging can comprise the intestinal bacteria, the BOD that is lower than 25mg/L that are lower than 100cfu/100ml, be lower than the COD of 120mg/L and be lower than the TSS of 35mg/L.
Test result:
In the wastewater treatment plant in Texas Kai Di city, carry out the test of land.The Kai Di city is in the suburb of Houston.This factory handles 3.2 hundred ten thousand gallons (MGD) every day, and maximum capacity is 13.3MGD.Marine Waste Water Treatment is being worked under the condition of following files specify: the test procedure that the Marine Environmental Protection Committee (MEPC) of International Maritime Organizaton (IMO) adopts in the international elute standard of resolution MEPC.2 (VI) sewage disposal plant performance test in 1976 is recommended with guide, and the revision of employing in the MEPC.159 (55) on October 13rd, 2006.The all operations of this system is carried out by trained personnel.Proper handling to this system during 12 test days is carried out with keeping watch on by these identical personnel.System operation and laboratory result are by independently third company's checking (in this case, by Bureau Veritas (Bureau Veritas) checking).
These tests are carried out under specific sewage quality.Inflow (A) is the fresh sewage of being made up of movement, urine, toilet paper and the water of flushing the toilet, and adds the sewage that mud has minimum total suspended solid concentration with acquisition therein, and it is suitable for the personnel amount and the liquid load of sewage disposal plant authentication.Waste Water Treatment through test is designed for 13.6 cubic metres/day liquid load.The extended period of test phase be 12 days to obtain all situations., Waste Water Treatment obtains sample and service data after reaching steady state conditions.
Sewage with quality of requirement is provided and is input to continuously this Waste Water Treatment by the waste water treatment plant.In 12 days, obtain 232 samples by the interval of regulation; 94 samples are used for confirming colibacillus of excrement concentration (half flows into half outflow), and 138 samples (half flows into half outflow) are used for confirming TSS, BOD5, COD, pH and chlorine.The colibacillus of excrement sample respectively one day twice by express delivery pass to northern water area laboratory service company (NWDLS-North Water District Laboratory Services, thus Inc.) can execution analysis in 8 hours of sample collection time.The sample that is used for other analysis can be once a day by being delivered to NWDLS soon.All sample collections and transmit all conformance with standard Chain of Custody.NWDLS is admitted by USEPA (EPA-United States Environmental Protection Agency), and is approved by American National environmental laboratory certified variety (National Environmental Laboratory Accreditation Program) and Texas Council on Environmental Quality (Texas Commission on Environmental Quality).
The inflow of whole test satisfies the requirement of resolution MEPC.159 (55).Shown in following table 1, the geometrical mean of TSS is that the minimum value of 888.6mg/L and test in whole 12 days is 618.0mg/L.
After handling waste water according to one or more embodiments of method mentioned above, check is through the elute (B) of dechlorination.This elute satisfies the criterion of resolution MEPC.159 (55).This elute representes to leave the outboard elute of wastewater treatment process.Shown in following table 2, the geometrical mean of colibacillus of excrement is that every 100ml has 8.7 colony-forming units, far below desired geometrical mean 100.Other of system's elute analyzed shown in the table 2, and confirmed that the geometrical mean of TSS is 16.3mg/L, the COD value is that 30.3mg/L, BOD5 value are 7.5mg/L, and the pH value is 7.0, and in 6.1 to 7.7 scope, and chlorine is in 0.01 to 0.40 scope.These results satisfy the criterion of MEPC.159 (55).
Though do not illustrate in this article, can revise wastewater flow based on system optimization, as long as this modification meets the principle of the utility model that limits like claim.Additional treatment facility can in whole process described herein, be used, such as pump, pipeline or additional electrolyzer or filtering unit.
Can expect that embodiment described herein can such as marine ships, comprise on naval vessel and the platform and using at for example Offshore Units.For a lot of commercial applications, the watertight part (tight quarters) in the Offshore Units is even make that usually the installation of Waste Water Treatment maybe be also difficult.Yet the embodiment of the utility model also provides the purification system with less floorage and overall dimensions, thereby alleviates the misgivings of installation aspect.
Though preceding text relate to the embodiment of the utility model, other that can find out the utility model do not break away from the base region of the utility model with further embodiment, and the scope of the utility model is confirmed by the application's claim.The utility model is not limited to said embodiment, version or example, comprises among this paper that these contents are in order to allow the information of those skilled in the art in combining the disclosure to implement and use the utility model during with technology with information available.
Claims (4)
1. a marine Waste Water Treatment is characterized in that, said system comprises:
Waste water collection tank;
Be connected to the dipping pump of waste water collection tank;
Adjacent to the mixing pump of dipping pump, said mixing pump is also connected to waste water collection tank;
Be configured to receive electrolyzer through dipping waste water from the dipping pump;
Electricity adjacent to electrolyzer coagulates the pond;
Be operably connected to electrolyzer and electric system of coagulating the pond;
Be connected to the degas chamber that electricity coagulates the pond by plumbing installation;
Primary precipitate groove adjacent to degas chamber;
Second clarifying tank that is communicated with the settling bath fluid, said settling bath and clarifying tank have a pair of tapered sidewalls separately and are used at least one bottom opening that mud extracts;
Be installed in the turbidometer on the public mud vent pipe, said public mud vent pipe is connected to settling bath and clarifying tank;
The dechlorination unit, said dechlorination unit also comprises the chemical substance injection pump;
Be used for carrying out filtering self-cleaning strainer to leaving the unitary elute of dechlorination; And
The elute overboard pump.
2. system according to claim 1 is characterized in that, also comprises being coupled to air and the aqueous cleaner that electricity coagulates the pond.
3. system according to claim 2 is characterized in that, also comprises:
Be used for supplying with the sea water supply source of seawater to electrolyzer; And
The fragment dish, it is used for before supplying with seawater to electrolyzer, collecting the fragment that appears at seawater.
4. system according to claim 3 is characterized in that said degas chamber also comprises blower and breather, to allow and will arrive atmosphere as the resultant gas release of electrolytic process in the electrolyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201992326U CN202116396U (en) | 2011-06-13 | 2011-06-13 | Offshore waste water treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201992326U CN202116396U (en) | 2011-06-13 | 2011-06-13 | Offshore waste water treatment system |
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| CN202116396U true CN202116396U (en) | 2012-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201992326U Expired - Lifetime CN202116396U (en) | 2011-06-13 | 2011-06-13 | Offshore waste water treatment system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066384A (en) * | 2016-07-05 | 2016-11-02 | 青岛双瑞海洋环境工程股份有限公司 | Marine domestic sewage processes test simulation and flows into water preparation and supply method and device |
| CN107620369A (en) * | 2017-08-05 | 2018-01-23 | 董明 | Water treatment system |
| CN108001663A (en) * | 2017-11-28 | 2018-05-08 | 中海油能源发展股份有限公司 | A kind of large-scale waterborne moveable Multi-functional effluent treatment unit and sewage water treatment method |
-
2011
- 2011-06-13 CN CN2011201992326U patent/CN202116396U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066384A (en) * | 2016-07-05 | 2016-11-02 | 青岛双瑞海洋环境工程股份有限公司 | Marine domestic sewage processes test simulation and flows into water preparation and supply method and device |
| CN106066384B (en) * | 2016-07-05 | 2018-05-25 | 青岛双瑞海洋环境工程股份有限公司 | Marine domestic sewage processing test simulation flows into water and prepares and supply method and device |
| CN107620369A (en) * | 2017-08-05 | 2018-01-23 | 董明 | Water treatment system |
| CN108001663A (en) * | 2017-11-28 | 2018-05-08 | 中海油能源发展股份有限公司 | A kind of large-scale waterborne moveable Multi-functional effluent treatment unit and sewage water treatment method |
| CN108001663B (en) * | 2017-11-28 | 2023-09-29 | 中海油能源发展股份有限公司 | Large-scale water movable multifunctional sewage treatment device and sewage treatment method |
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Address after: American Texas Patentee after: DE NORA WATER TECHNOLOGIES, LLC Address before: American Texas Patentee before: SEVERN TRENT DE NORA, LLC |
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| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
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