CN113800717A - Ship wastewater treatment device and treatment process thereof - Google Patents

Ship wastewater treatment device and treatment process thereof Download PDF

Info

Publication number
CN113800717A
CN113800717A CN202111127740.8A CN202111127740A CN113800717A CN 113800717 A CN113800717 A CN 113800717A CN 202111127740 A CN202111127740 A CN 202111127740A CN 113800717 A CN113800717 A CN 113800717A
Authority
CN
China
Prior art keywords
sludge
communicated
input end
output end
wastewater
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
Application number
CN202111127740.8A
Other languages
Chinese (zh)
Inventor
余春华
陶讯虎
颜崇威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGZHOU CHANGSHUO ENVIRONMENTAL PROTECTION EQUIPMENT CO Ltd
Original Assignee
GUANGZHOU CHANGSHUO ENVIRONMENTAL PROTECTION EQUIPMENT CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GUANGZHOU CHANGSHUO ENVIRONMENTAL PROTECTION EQUIPMENT CO Ltd filed Critical GUANGZHOU CHANGSHUO ENVIRONMENTAL PROTECTION EQUIPMENT CO Ltd
Priority to CN202111127740.8A priority Critical patent/CN113800717A/en
Publication of CN113800717A publication Critical patent/CN113800717A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63JAUXILIARIES ON VESSELS
    • B63J4/00Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for
    • B63J4/006Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for for treating waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/40Devices for separating or removing fatty or oily substances or similar floating material
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/008Originating from marine vessels, ships and boats, e.g. bilge water or ballast water
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2203/00Apparatus and plants for the biological treatment of water, waste water or sewage
    • C02F2203/006Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2203/00Apparatus and plants for the biological treatment of water, waste water or sewage
    • C02F2203/008Mobile apparatus and plants, e.g. mounted on a vehicle
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/04Flow arrangements
    • C02F2301/046Recirculation with an external loop
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The invention relates to a ship wastewater treatment device, which comprises: the oily wastewater treatment module is used for separating oily wastewater into floating oil, lower-layer sewage and materialized sludge; the domestic wastewater treatment module is used for separating domestic wastewater into biochemical sludge and standard-reaching wastewater; the sludge dewatering module is used for dewatering the mixture of the materialized sludge, the biochemical sludge and the floating oil liquid into a dry sludge cake and a filtrate; the ship wastewater treatment device has the advantages of low energy consumption, stable equipment effluent quality, small equipment occupied area, high treatment efficiency and low investment cost.

Description

Ship wastewater treatment device and treatment process thereof
Technical Field
The invention relates to the technical field of wastewater treatment equipment and processes, in particular to a ship wastewater treatment device and a treatment process thereof.
Background
A large amount of domestic sewage and ship oily water can be produced when a ship sails on water, the sewage can not be directly discharged into the environment, and the sewage can be discharged into the environment only after reaching the standard meeting the index requirement after being subjected to special treatment. Because the ship needs to be in a relatively independent environment for a long time in the transportation process, the sewage on the ship is stored by using a water storage tank or is discharged into the environment after being treated by using sewage treatment equipment.
The existing ship sewage treatment equipment usually mixes domestic sewage and ship oily sewage together and then adopts the traditional biochemical process for treatment. However, the quality of the sewage often fluctuates, which directly affects the biochemical effect, so that the effluent indexes of subsequent equipment are often unqualified and need to be returned for retreatment, and therefore, the treatment process has the problems of high operating cost, inconvenient operation, substandard treatment effect and the like; even further treatment of the wastewater by subsequent equipment is required.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a ship wastewater treatment device and a treatment process thereof, which are used for solving the problems of high operation cost and inconvenient operation of the conventional ship wastewater treatment process.
The technical purpose of the invention is realized by the following technical scheme:
a marine wastewater treatment plant comprising: the oily wastewater treatment module is used for separating oily wastewater into floating oil, lower-layer sewage and materialized sludge; the domestic wastewater treatment module is used for separating domestic wastewater into biochemical sludge and standard-reaching wastewater; the sludge dewatering module is used for dewatering the mixture of the materialized sludge, the biochemical sludge and the floating oil liquid into a dry sludge cake and a filtrate; the first input end of the oily wastewater treatment module, which is used for receiving oily wastewater, is communicated with an oily wastewater discharge port; a first output end of the oily wastewater treatment module, which is used for outputting floating oil, is communicated with a first input end of the sludge dewatering module; a second output end of the oily wastewater treatment module, which is used for outputting materialized sludge, is communicated with a second input end of the sludge dehydration module; a third output end of the oily wastewater treatment module, which is used for outputting lower-layer sewage, is communicated with the first input end of the domestic wastewater treatment module; a second input end of the domestic wastewater treatment module, which is used for receiving domestic wastewater, is communicated with the domestic wastewater discharge port; a first output end of the domestic wastewater treatment module for outputting biochemical sludge is communicated with a third input end of the sludge dewatering module; a second output end of the domestic wastewater treatment module, which is used for outputting standard-reaching wastewater, is communicated with a standard-reaching wastewater discharge port; a first output end of the sludge dewatering module, which is used for outputting filtrate, is communicated with a second input end of the oily wastewater treatment module; the sludge dewatering module further comprises a second output end for producing a dry sludge cake.
Optionally, the oily wastewater treatment module comprises: the device comprises a collecting tank for collecting oily wastewater, a separating device for carrying out oil-water separation on the oily wastewater to generate floating oil and bottom layer separating liquid, a physicochemical reaction device for carrying out physicochemical reaction on the bottom layer separating liquid to generate lower layer sewage and sediment, and a precipitation device for separating the lower layer sewage and the sediment; the first input end of the water collecting tank is communicated with an oil-containing wastewater discharge port; the second input end of the water collecting tank is communicated with the first output end of the sludge dewatering module; the output end of the water collecting tank is communicated with the input end of the separation device; a first output end of the separation device for outputting floating oil liquid is communicated with a first input end of the sludge dewatering module; a second output end of the separation device for outputting the floating oil liquid is communicated with the input end of the physicochemical reaction device; the output end of the physicochemical reaction device is communicated with the input end of the precipitation device; a first output end of the sedimentation device for outputting the materialized sludge is communicated with a second input end of the sludge dewatering module; and a second output end of the sedimentation device, which is used for outputting the lower-layer sewage, is communicated with a first input end of the domestic wastewater treatment module.
Optionally, the oily wastewater treatment module further comprises: the delivery pump is used for accelerating the flow of the oily wastewater in the collecting tank; the input end of the delivery pump is communicated with the output end of the water collecting tank; and the output end of the delivery pump is communicated with the input end of the separation device.
Optionally, the domestic wastewater treatment module comprises: the domestic sewage treatment system comprises a regulating tank for collecting domestic wastewater, a biochemical treatment device for biologically decomposing the domestic wastewater, a CS treatment device for performing inclined plate precipitation treatment on the biochemically treated domestic wastewater, and a disinfection device for disinfecting the precipitated domestic sewage; the first input end of the regulating tank is communicated with the domestic wastewater discharge port; the second input end of the regulating tank is communicated with the third output end of the oily wastewater treatment module, which is used for outputting lower-layer sewage; the output end of the regulating tank is communicated with the input end of the biochemical treatment device; the output end of the biochemical treatment device is communicated with the input end of the CS treatment device; a first output end of the CS treatment device for outputting biochemical sludge is connected with an input end of the disinfection device; a second output end of the CS treatment device for outputting biochemical sludge is connected with a third input end of the sludge dewatering module; the output end of the disinfection device is communicated with the standard-reaching wastewater discharge port.
Optionally, the domestic wastewater treatment module further comprises: a lift pump and a grid well for filtering particulate matter and fibrous matter in the domestic wastewater; the input end of the grid well is communicated with the domestic wastewater discharge port; the output end of the grid well is communicated with the first input end of the regulating pool; the input end of the lifting water pump is communicated with the output end of the regulating tank; the output end of the lifting water pump is communicated with the input end of the biochemical treatment device.
Optionally, the biochemical treatment device comprises an aerobic bacteria decomposition mechanism, an anaerobic bacteria decomposition mechanism and a circulating water pump for decomposing the domestic wastewater for multiple times; the first input end of the aerobic bacteria decomposition mechanism is communicated with the output end of the regulating tank; the second input end of the aerobic bacteria decomposition mechanism is communicated with the output end of the circulating water pump; the first input end of the anaerobic bacteria decomposition mechanism is communicated with the output end of the aerobic bacteria decomposition mechanism; and the first output end of the anaerobic bacteria decomposition mechanism is communicated with the input end of the CS treatment device, and the second output end of the anaerobic bacteria decomposition mechanism is communicated with the input end of the circulating water pump.
Optionally, the sludge dewatering module includes: a sludge concentration tank, a sludge delivery pump and a dewatering device; the first input end of the sludge concentration tank is communicated with the first output end of the oily wastewater treatment module; the second input end of the sludge concentration tank is communicated with the second output end of the oily wastewater treatment module; the third input end of the sludge concentration tank is communicated with the first output end of the domestic wastewater treatment module; the output end of the sludge concentration tank is connected with the input end of the sludge delivery pump, the output end of the sludge delivery pump is communicated with the input end of the dehydration device, and the first output end of the dehydration device is communicated with the second input end of the oily wastewater treatment module; the dewatering device is also provided with a second output end for outputting the dry mud cake.
The invention also provides a ship wastewater treatment process using the ship wastewater treatment device, which comprises the following steps:
s1, separating the oily wastewater into oil slick liquid, materialized sludge and lower-layer sewage by using the oily wastewater treatment module, conveying the oil slick liquid and the materialized sludge into the sludge dehydration module, and conveying the lower-layer sewage into the domestic wastewater treatment module;
s2, separating the domestic wastewater into standard wastewater and biochemical sludge by using the domestic wastewater treatment module; conveying the biochemical sludge into the sludge dewatering module, and discharging the standard-reaching wastewater into the environment;
s3, collecting the mixture of the materialized sludge, the biochemical sludge and the floating oil liquid by using the sludge concentration tank;
s4, conveying the mixture in the sludge concentration tank to the dewatering device through the sludge conveying pump to generate a dry sludge cake and a filtrate;
s5, the dry mud cake is sent to be buried; and conveying the filtrate back to the collecting tank for treatment again.
Optionally, the step S1 includes:
s11, collecting the oily sewage and filtrate by using the collecting tank;
s12, conveying the mixture in the collecting tank to a separation device by using the conveying pump to be separated into floating oil liquid and bottom layer separation liquid;
s13, conveying the oil slick liquid into the sludge concentration tank, conveying the bottom layer separation liquid into the physicochemical reaction device, and separating suspended matters in the bottom layer separation liquid through a physical and chemical reaction;
s14, inputting the bottom layer separation liquid with suspended matters into a precipitation device for precipitation treatment to obtain precipitates and lower layer sewage;
s15, inputting the sediment into the sludge concentration tank, and inputting the lower layer sewage into the domestic wastewater treatment module.
Optionally, the step S2 includes:
s21, filtering particulate matters and fibrous matters in domestic wastewater and lower-layer sewage by using the grid well;
s22, collecting the mixture of the filtered domestic wastewater and the lower-layer sewage by using the regulating tank;
s23, conveying the mixture of the domestic wastewater and the lower-layer sewage in the regulating reservoir to the biochemical treatment device by using the lifting water pump;
s24, circulating the mixture of the domestic wastewater and the lower-layer sewage in the biochemical treatment device for multiple times through the circulating water pump so as to fully decompose the aerobic bacteria decomposition mechanism and the anaerobic bacteria decomposition mechanism;
s25, conveying the mixture of the domestic wastewater subjected to biochemical treatment and the lower-layer sewage into the CS treatment device for inclined plate precipitation treatment to generate biochemical sludge and standard-reaching wastewater;
s26, conveying the biochemical sludge to the sludge collection tank for collection; conveying the standard-reaching wastewater into a disinfection device for disinfection;
s27, discharging the disinfected wastewater reaching the standard.
In conclusion, the invention has the following beneficial effects: the application provides a boats and ships effluent treatment plant includes: the oily wastewater treatment module is used for separating oily wastewater into floating oil, lower-layer sewage and materialized sludge; the domestic wastewater treatment module is used for separating domestic wastewater into biochemical sludge and standard-reaching wastewater; the sludge dewatering module is used for dewatering the mixture of the materialized sludge, the biochemical sludge and the floating oil liquid into a dry sludge cake and a filtrate; the first input end of the oily wastewater treatment module, which is used for receiving oily wastewater, is communicated with an oily wastewater discharge port; a first output end of the oily wastewater treatment module, which is used for outputting floating oil, is communicated with a first input end of the sludge dewatering module; a second output end of the oily wastewater treatment module, which is used for outputting materialized sludge, is communicated with a second input end of the sludge dehydration module; a third output end of the oily wastewater treatment module, which is used for outputting lower-layer sewage, is communicated with the first input end of the domestic wastewater treatment module; a second input end of the domestic wastewater treatment module, which is used for receiving domestic wastewater, is communicated with the domestic wastewater discharge port; a first output end of the domestic wastewater treatment module for outputting biochemical sludge is communicated with a third input end of the sludge dewatering module; a second output end of the domestic wastewater treatment module, which is used for outputting standard-reaching wastewater, is communicated with a standard-reaching wastewater discharge port; a first output end of the sludge dewatering module, which is used for outputting filtrate, is communicated with a second input end of the oily wastewater treatment module; the sludge dewatering module also comprises a second output end for producing a dry sludge cake; the invention can classify and dispose the waste water produced by the ship, avoid the waste water treatment from not reaching the standard due to the change of the content of the components in the water, and compared with the traditional evaporation concentration treatment, the device of the invention has the advantages of low energy consumption, stable water quality of the effluent of the equipment, small occupied area of the equipment, high treatment efficiency and low investment cost.
Drawings
FIG. 1 is a schematic view of a treatment apparatus of the present invention;
FIG. 2 is a flow diagram of the treatment process of the present invention;
in the figure: 1. an oily wastewater treatment module; 11. an oily wastewater discharge port; 12. a water collecting tank; 13. a delivery pump; 14. a separation device; 15. a physicochemical reaction device; 16. a precipitation device; 2. a domestic wastewater treatment module; 21. a domestic wastewater discharge port; 22. a grid well; 23. a regulating tank; 24. lifting the water pump; 25. a biochemical treatment device; 26. a CS processing device; 27. a sterilizing device; 3. a sludge dewatering module; 31. a sludge concentration tank; 32. a sludge delivery pump; 33. a dewatering device; 34. a second output terminal; .
Detailed Description
In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, configuration, and operation, and therefore should not be construed as limiting the present invention.
The invention is described in detail below with reference to the figures and examples.
Referring to fig. 1 and 2 together, the present invention provides a ship wastewater treatment apparatus including:
an oily wastewater treatment module 1 for separating oily wastewater into floating oil, lower layer sewage and materialized sludge;
a domestic wastewater treatment module 2 for separating domestic wastewater into biochemical sludge and standard-reaching wastewater;
a sludge dewatering module 3 for dewatering the mixture of materialized sludge, biochemical sludge and floating oil liquid into a dry sludge cake and filtrate;
a first input end of the oily wastewater treatment module 1 for receiving oily wastewater is communicated with an oily wastewater discharge port 11; a first output end of the oily wastewater treatment module 1 for outputting floating oil is communicated with a first input end of the sludge dewatering module 3; a second output end 34 of the oily wastewater treatment module 1 for outputting materialized sludge is communicated with a second input end of the sludge dewatering module 3; a third output end of the oily wastewater treatment module 1 for outputting lower-layer sewage is communicated with a first input end of the domestic wastewater treatment module 2; a second input end of the domestic wastewater treatment module 2 for receiving domestic wastewater is communicated with a domestic wastewater discharge port 21; a first output end of the domestic wastewater treatment module 2 for outputting biochemical sludge is communicated with a third input end of the sludge dewatering module 3; a second output end 34 of the domestic wastewater treatment module 2 for outputting standard-reaching wastewater is communicated with a standard-reaching wastewater discharge port; a first output end of the sludge dewatering module 3 for outputting filtrate is communicated with a second input end of the oily wastewater treatment module 1; the sludge dewatering module 3 further comprises a second output 34 for producing a dry sludge cake.
In particular, the main waste in the domestic wastewater comes from the discharge and other waste of toilets and urinals, as well as medical offices, kitchens, laundries and toilets, etc.; the pollution load is higher because the ship sanitation system has a shorter discharge cycle and discharges much fresher (less decomposed) sewage than the urban drainage system. Moreover, the quality and the quantity of the discharged water are greatly changed due to the centralization of personnel, so that higher requirements are put forward for the wastewater treatment process. After the oily waste water (especially floating oil) is discharged into water body, a layer of very thin oil film can be formed on the surface of water body, according to the introduction of information, 1t of oil product is discharged to water surface, and then the oil film pollution of 5 x 106m2 can be formed. The oil film directly hinders the transfer of oxygen in the atmosphere to the water body, so that the water body is anoxic, and aquatic animals die due to the anoxic. The oily water discharged by the ship mainly comprises bilge oily water, ballast oily water generated by a fuel oil tank or an oil tanker and tank washing oily water generated during mechanical cleaning, and is commonly called as 'three-water'. The oil-contaminated water contains not only petroleum and petroleum products but also solid suspended substances and the like, and is a mixture of fresh water and seawater containing pollutants. Typical contaminants include fuels, oils, hydraulic fluids, detergents and water-bearing films, foaming Agents (AFFF), black water/grey water system sewage leaks, etc., and may also include corrosives such as paints and solvents, etc. In summary, the oily wastewater and the domestic wastewater are separated, oil substances in the oily wastewater are separated, and suspended matters in the bottom layer sewage pass through the physicochemical reaction device 15 to generate materialized sludge and lower layer sewage; merging the domestic wastewater and the lower-layer sewage from which the suspended matters are removed to generate dischargeable sewage and biochemical sludge, wherein the content index of components in the discharged sewage meets the discharge standard; materialized sludge containing a large amount of oil pollutants, biochemical sludge and floating oil liquid are dehydrated through the sludge dehydration module 3 to generate dry sludge cakes, and the dry sludge cakes are transported outside for treatment.
Further, the oily wastewater treatment module 1 includes: a collecting tank 12 for collecting the oily wastewater, a separating device 14 for separating oil from water in the oily wastewater to generate floating oil and bottom layer separating liquid, a physicochemical reaction device 15 for generating lower layer sewage and sediment by performing a physicochemical reaction in the bottom layer separating liquid, and a precipitation device 16 for separating the lower layer sewage and sediment; a first input end of the water collecting tank 12 is communicated with an oil-containing wastewater discharge port 11; a second input end of the water collecting tank 12 is communicated with a first output end of the sludge dewatering module 3 (namely, a first output end of the dewatering device 33); the output end of the water collecting tank 12 is communicated with the input end of the separating device 14; a first output end of the separation device 14 for outputting floating oil liquid is communicated with a first input end of the sludge dewatering module 3 (namely a first input end of the sludge thickener 31); the second output end 34 of the separation device 14 for outputting the floating oil liquid is communicated with the input end of the physicochemical reaction device 15; the output end of the physicochemical reaction device 15 is communicated with the input end of the precipitation device 16; a first output end of the sedimentation device 16 for outputting materialized sludge is communicated with a second input end of the sludge dewatering module 3 (namely, a second input end of the sludge concentration tank 31); the second output end 34 of the settling device 16 for outputting the lower layer sewage is communicated with the first input end of the domestic wastewater treatment module 2.
Further, the oily wastewater treatment module 1 further comprises: a delivery pump 13 for accelerating the flow of the oily wastewater in the collecting tank 12; the input end of the delivery pump 13 is communicated with the output end of the water collecting tank 12; the output end of the delivery pump 13 is communicated with the input end of the separation device 14.
Further, the domestic wastewater treatment module 2 comprises: a regulating tank 23 for collecting domestic wastewater, a biochemical treatment device 25 for biologically decomposing the domestic wastewater, a CS treatment device 26 for performing inclined plate sedimentation treatment on the domestic wastewater after the biochemical treatment, and a disinfection device 27 for disinfecting the domestic wastewater after the sedimentation; a first input end of the regulating tank 23 is communicated with the domestic wastewater discharge port 21; a second input end of the regulating tank 23 is communicated with a third output end of the oily wastewater treatment module 1 (namely, a second output end 34 of the sedimentation device 16) for outputting lower-layer sewage; the output end of the regulating tank 23 is communicated with the input end of the biochemical treatment device 25; the output end of the biochemical treatment device 25 is communicated with the input end of the CS treatment device 26; a first output end of the CS treatment device 26 for outputting biochemical sludge is connected with an input end of the disinfection device 27; a second output end 34 of the CS processing device 26 for outputting biochemical sludge is connected with a third input end of the sludge dewatering module 3; the output end of the disinfection device 27 is communicated with the standard wastewater discharge port.
Further, the domestic wastewater treatment module 2 further comprises: a lift pump 24 and a grid well 22 for filtering particulate matter and fibrous matter in the domestic wastewater; the input end of the grid well 22 is communicated with the domestic wastewater discharge port 21; the output end of the grid well 22 is communicated with the first input end of the regulating pool 23; the input end of the lifting water pump 24 is communicated with the output end of the regulating tank 23; the output end of the lift water pump 24 is communicated with the input end of the biochemical treatment device 25. The grid well 22 is used for filtering fibrous substances and particles in the domestic wastewater, and prevents the fibrous substances and the particles from blocking the pipeline in the conveying process.
Further, the biochemical treatment device 25 comprises an aerobic bacteria decomposition mechanism, an anaerobic bacteria decomposition mechanism and a circulating water pump for decomposing the domestic wastewater for multiple times; the first input end of the aerobic bacteria decomposition mechanism is communicated with the output end of the regulating tank 23; the second input end of the aerobic bacteria decomposition mechanism is communicated with the output end of the circulating water pump; the first input end of the anaerobic bacteria decomposition mechanism is communicated with the output end of the aerobic bacteria decomposition mechanism; the first output end of the anaerobic bacteria decomposition mechanism is communicated with the input end of the CS treatment device 26, and the second output end 34 of the anaerobic bacteria decomposition mechanism is communicated with the input end of the circulating water pump. Through circulating water pump can let be located sewage among the biochemical treatment device 25 carries out the circulation reaction, lets sewage and aerobic bacteria and anaerobe fully contact, lets the abundant decomposition of filth in aquatic.
Further, the sludge dewatering module 3 includes: a sludge concentration tank 31, a sludge transfer pump 3213, and a dewatering device 33; a first input end of the sludge concentration tank 31 is communicated with a first output end of the oily wastewater treatment module 1 (namely, a first output end of the separation device 14 for outputting floating oil liquid); a second input end of the sludge concentration tank 31 is communicated with a second output end 34 of the oily wastewater treatment module 1 (namely, a first output end of the sedimentation device 16 for outputting materialized sludge); a third input end of the sludge concentration tank 31 is communicated with a first output end of the domestic wastewater treatment module 2 (namely, a second output end 34 of the CS treatment device 26 for outputting biochemical sludge); the output end of the sludge concentration tank 31 is connected with the input end of the sludge delivery pump 3213, the output end of the sludge delivery pump 3213 is communicated with the input end of the dewatering device 33, and the first output end of the dewatering device 33 is communicated with the second input end of the oily wastewater treatment module 1 (i.e., the second input end of the water collecting tank 12); the dewatering device 33 is further provided with a second output 34 for outputting the dried mud cake.
Further, the invention also provides a ship wastewater treatment process using the ship wastewater treatment device, which comprises the following steps:
s1, separating the oily wastewater into oil slick liquid, materialized sludge and lower-layer sewage by using the oily wastewater treatment module 1, conveying the oil slick liquid and the materialized sludge into the sludge dehydration module 3, and conveying the lower-layer sewage into the domestic wastewater treatment module 2;
specifically, the present step S1 mainly includes the following steps S11-S15:
s11, collecting the oily sewage and the filtrate by using the collecting tank 12;
s12, conveying the mixture in the collecting tank 12 to a separation device 14 by using the conveying pump 13 to be separated into floating oil liquid and bottom layer separation liquid;
s13, conveying the oil slick liquid into the sludge concentration tank 31, conveying the bottom layer separation liquid into the physicochemical reaction device 15, and separating suspended matters in the bottom layer separation liquid through physical and chemical reactions;
s14, inputting the bottom layer separation liquid with suspended matters into a precipitation device 16 for precipitation treatment to obtain precipitates and lower layer sewage;
s15, inputting the sediment into the sludge concentration tank 31, and inputting the lower layer sewage into the domestic wastewater treatment module 2;
s2, separating the domestic wastewater into standard wastewater and biochemical sludge by using the domestic wastewater treatment module 2; the biochemical sludge is conveyed into the sludge dewatering module 3, and the standard-reaching wastewater is discharged into the environment;
specifically, the present step S2 mainly includes the following steps S21-S27:
s21, filtering particulate matters and fibrous matters in the domestic wastewater and the lower layer sewage by using the grid wells 22;
s22, collecting the mixture of the filtered domestic wastewater and the lower-layer sewage by using the adjusting tank 23;
s23, conveying the mixture of the domestic wastewater and the lower-layer sewage in the regulating reservoir to the biochemical treatment device 25 by using the lifting water pump 24;
s24, circulating the mixture of the domestic wastewater and the lower-layer sewage in the biochemical treatment device 25 for multiple times through the circulating water pump so as to fully decompose the aerobic bacteria decomposition mechanism and the anaerobic bacteria decomposition mechanism;
s25, conveying the mixture of the domestic wastewater subjected to biochemical treatment and the lower-layer sewage into the CS treatment device 26 for inclined plate precipitation treatment to generate biochemical sludge and standard-reaching wastewater;
s26, conveying the biochemical sludge to the sludge collection tank for collection; conveying the standard-reaching wastewater to a disinfection device 27 for disinfection;
s27, discharging the disinfected wastewater reaching the standard;
s3, collecting the mixture of the materialized sludge, the biochemical sludge and the floating oil liquid by using the sludge concentration tank 31;
s4, conveying the mixture in the sludge concentration tank 31 to the dewatering device 33 through the sludge conveying pump 3213 to generate a dry sludge cake and filtrate;
s5, the dry mud cake is sent to be buried; the filtrate is conveyed back to the sump 12 for re-treatment.
Specifically, in the present embodiment, the CS treatment device 26 refers to a treatment apparatus employing an inclined plate sedimentation function; the physicochemical reaction device 15 is a method for coagulating and precipitating suspended matters in water by using a physical and chemical method; the biochemical reaction device adopts microorganisms such as aerobic bacteria and anaerobic bacteria to decompose organic matters in water into inorganic matters, so that the pressure of domestic wastewater on environmental decomposition is reduced.
The embodiment also provides an effect comparison table adopting the wastewater treatment device and the treatment process:
A. design of water quality index meter (unit: mg/L) for oily wastewater
Figure BDA0003279242740000141
After the treatment of the equipment, the oil content of the effluent is less than or equal to 40mg/L, and the oil removal rate is more than 85 percent.
B. Design of domestic wastewater inlet water quality index meter (unit: mg/L)
Index (I) pH CODcr BOD5 SS NH3-N Total nitrogen Total phosphorus Animal and vegetable oil
Domestic sewage 6-8 ≤500 ≤250 ≤200 ≤35 ≤40 ≤5 ≤30
The effluent index after being treated by the system
Figure BDA0003279242740000142
Figure BDA0003279242740000151
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (10)

1. A marine wastewater treatment plant, comprising:
the oily wastewater treatment module is used for separating oily wastewater into floating oil, lower-layer sewage and materialized sludge;
the domestic wastewater treatment module is used for separating domestic wastewater into biochemical sludge and standard-reaching wastewater;
the sludge dewatering module is used for dewatering the mixture of the materialized sludge, the biochemical sludge and the floating oil liquid into a dry sludge cake and a filtrate;
the first input end of the oily wastewater treatment module, which is used for receiving oily wastewater, is communicated with an oily wastewater discharge port; a first output end of the oily wastewater treatment module, which is used for outputting floating oil, is communicated with a first input end of the sludge dewatering module; a second output end of the oily wastewater treatment module, which is used for outputting materialized sludge, is communicated with a second input end of the sludge dehydration module; a third output end of the oily wastewater treatment module, which is used for outputting lower-layer sewage, is communicated with the first input end of the domestic wastewater treatment module; a second input end of the domestic wastewater treatment module, which is used for receiving domestic wastewater, is communicated with the domestic wastewater discharge port; a first output end of the domestic wastewater treatment module for outputting biochemical sludge is communicated with a third input end of the sludge dewatering module; a second output end of the domestic wastewater treatment module, which is used for outputting standard-reaching wastewater, is communicated with a standard-reaching wastewater discharge port; a first output end of the sludge dewatering module, which is used for outputting filtrate, is communicated with a second input end of the oily wastewater treatment module; the sludge dewatering module further comprises a second output end for producing a dry sludge cake.
2. The marine wastewater treatment plant according to claim 1, wherein the oily wastewater treatment module comprises: the device comprises a collecting tank for collecting oily wastewater, a separating device for carrying out oil-water separation on the oily wastewater to generate floating oil and bottom layer separating liquid, a physicochemical reaction device for carrying out physicochemical reaction on the bottom layer separating liquid to generate lower layer sewage and sediment, and a precipitation device for separating the lower layer sewage and the sediment;
the first input end of the water collecting tank is communicated with an oil-containing wastewater discharge port; the second input end of the water collecting tank is communicated with the first output end of the sludge dewatering module;
the output end of the water collecting tank is communicated with the input end of the separation device; a first output end of the separation device for outputting floating oil liquid is communicated with a first input end of the sludge dewatering module; a second output end of the separation device for outputting the floating oil liquid is communicated with the input end of the physicochemical reaction device; the output end of the physicochemical reaction device is communicated with the input end of the precipitation device; a first output end of the sedimentation device for outputting the materialized sludge is communicated with a second input end of the sludge dewatering module; and a second output end of the sedimentation device, which is used for outputting the lower-layer sewage, is communicated with a first input end of the domestic wastewater treatment module.
3. The marine wastewater treatment plant of claim 2, wherein the oily wastewater treatment module further comprises: the delivery pump is used for accelerating the flow of the oily wastewater in the collecting tank; the input end of the delivery pump is communicated with the output end of the water collecting tank; and the output end of the delivery pump is communicated with the input end of the separation device.
4. The marine wastewater treatment apparatus according to claim 1, wherein the domestic wastewater treatment module comprises: the domestic wastewater treatment system comprises a regulating tank for collecting domestic wastewater, a biochemical treatment device for biologically decomposing the domestic wastewater, a CS treatment device for performing inclined plate precipitation treatment on the biochemically treated domestic wastewater, and a disinfection device for disinfecting the precipitated domestic wastewater;
the first input end of the regulating tank is communicated with the domestic wastewater discharge port; the second input end of the regulating tank is communicated with the third output end of the oily wastewater treatment module, which is used for outputting lower-layer sewage; the output end of the regulating tank is communicated with the input end of the biochemical treatment device; the output end of the biochemical treatment device is communicated with the input end of the CS treatment device; a first output end of the CS treatment device for outputting biochemical sludge is connected with an input end of the disinfection device; a second output end of the CS treatment device for outputting biochemical sludge is connected with a third input end of the sludge dewatering module; the output end of the disinfection device is communicated with the standard-reaching wastewater discharge port.
5. The marine wastewater treatment apparatus of claim 4, wherein the sanitary wastewater treatment module further comprises: a lift pump and a grid well for filtering particulate matter and fibrous matter in the domestic wastewater; the input end of the grid well is communicated with the domestic wastewater discharge port; the output end of the grid well is communicated with the first input end of the regulating pool; the input end of the lifting water pump is communicated with the output end of the regulating tank; the output end of the lifting water pump is communicated with the input end of the biochemical treatment device.
6. The marine wastewater treatment apparatus according to claim 4, wherein the biochemical treatment apparatus comprises an aerobic bacteria decomposition means, an anaerobic bacteria decomposition means, and a circulating water pump for decomposing the domestic wastewater a plurality of times; the first input end of the aerobic bacteria decomposition mechanism is communicated with the output end of the regulating tank; the second input end of the aerobic bacteria decomposition mechanism is communicated with the output end of the circulating water pump; the first input end of the anaerobic bacteria decomposition mechanism is communicated with the output end of the aerobic bacteria decomposition mechanism; and the first output end of the anaerobic bacteria decomposition mechanism is communicated with the input end of the CS treatment device, and the second output end of the anaerobic bacteria decomposition mechanism is communicated with the input end of the circulating water pump.
7. The marine wastewater treatment apparatus of claim 1, wherein the sludge dewatering module comprises: a sludge concentration tank, a sludge delivery pump and a dewatering device; the first input end of the sludge concentration tank is communicated with the first output end of the oily wastewater treatment module; the second input end of the sludge concentration tank is communicated with the second output end of the oily wastewater treatment module; the third input end of the sludge concentration tank is communicated with the first output end of the domestic wastewater treatment module; the output end of the sludge concentration tank is connected with the input end of the sludge delivery pump, the output end of the sludge delivery pump is communicated with the input end of the dehydration device, and the first output end of the dehydration device is communicated with the second input end of the oily wastewater treatment module; the dewatering device is also provided with a second output end for outputting the dry mud cake.
8. A marine wastewater treatment process using the marine wastewater treatment apparatus according to any one of claims 1 to 7, comprising:
s1, separating the oily wastewater into oil slick liquid, materialized sludge and lower-layer sewage by using the oily wastewater treatment module, conveying the oil slick liquid and the materialized sludge into the sludge dehydration module, and conveying the lower-layer sewage into the domestic wastewater treatment module;
s2, separating the domestic wastewater into standard wastewater and biochemical sludge by using the domestic wastewater treatment module; conveying the biochemical sludge into the sludge dewatering module, and discharging the standard-reaching wastewater into the environment;
s3, collecting the mixture of the materialized sludge, the biochemical sludge and the floating oil liquid by using the sludge concentration tank;
s4, conveying the mixture in the sludge concentration tank to the dewatering device through the sludge conveying pump to generate a dry sludge cake and a filtrate;
s5, the dry mud cake is sent to be buried; and conveying the filtrate back to the collecting tank for treatment again.
9. The marine wastewater treatment process according to claim 8, wherein the step S1 includes:
s11, collecting the oily sewage and filtrate by using the collecting tank;
s12, conveying the mixture in the collecting tank to a separation device by using the conveying pump to be separated into floating oil liquid and bottom layer separation liquid;
s13, conveying the oil slick liquid into the sludge concentration tank, conveying the bottom layer separation liquid into the physicochemical reaction device, and separating suspended matters in the bottom layer separation liquid through a physical and chemical reaction;
s14, inputting the bottom layer separation liquid with suspended matters into a precipitation device for precipitation treatment to obtain precipitates and lower layer sewage;
s15, inputting the sediment into the sludge concentration tank, and inputting the lower layer sewage into the domestic wastewater treatment module.
10. The marine wastewater treatment process according to claim 8, wherein the step S2 includes:
s21, filtering particulate matters and fibrous matters in domestic wastewater and lower-layer sewage by using the grid well;
s22, collecting the mixture of the filtered domestic wastewater and the lower-layer sewage by using the regulating tank;
s23, conveying the mixture of the domestic wastewater and the lower-layer sewage in the regulating reservoir to the biochemical treatment device by using the lifting water pump;
s24, circulating the mixture of the domestic wastewater and the lower-layer sewage in the biochemical treatment device for multiple times through the circulating water pump so as to fully decompose the aerobic bacteria decomposition mechanism and the anaerobic bacteria decomposition mechanism;
s25, conveying the mixture of the domestic wastewater subjected to biochemical treatment and the lower-layer sewage into the CS treatment device for inclined plate precipitation treatment to generate biochemical sludge and standard-reaching wastewater;
s26, conveying the biochemical sludge to the sludge collection tank for collection; conveying the standard-reaching wastewater into a disinfection device for disinfection;
s27, discharging the disinfected wastewater reaching the standard.
CN202111127740.8A 2021-09-26 2021-09-26 Ship wastewater treatment device and treatment process thereof Pending CN113800717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111127740.8A CN113800717A (en) 2021-09-26 2021-09-26 Ship wastewater treatment device and treatment process thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111127740.8A CN113800717A (en) 2021-09-26 2021-09-26 Ship wastewater treatment device and treatment process thereof

Publications (1)

Publication Number Publication Date
CN113800717A true CN113800717A (en) 2021-12-17

Family

ID=78896702

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111127740.8A Pending CN113800717A (en) 2021-09-26 2021-09-26 Ship wastewater treatment device and treatment process thereof

Country Status (1)

Country Link
CN (1) CN113800717A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105776744A (en) * 2016-03-28 2016-07-20 舟山光大检测研究院有限公司 Biological treatment method for ship building and repairing integrated wastewater
CN106116054A (en) * 2016-08-17 2016-11-16 谭嘉伟 Track traffic integrated wastewater processes and reclaiming system
CN108821508A (en) * 2018-06-26 2018-11-16 广州港集团有限公司 The system and method for processing oily wastewater based on domestic sewage processing system
CN208279375U (en) * 2018-04-19 2018-12-25 南京中船绿洲环保有限公司 A kind of Sewage from Ships processing equipment
CN212476302U (en) * 2020-04-24 2021-02-05 广州昌硕环保设备有限公司 Industrial water treatment equipment
CN112876005A (en) * 2021-04-21 2021-06-01 广东柏然环保科技有限公司 Ship sewage collecting and treating device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105776744A (en) * 2016-03-28 2016-07-20 舟山光大检测研究院有限公司 Biological treatment method for ship building and repairing integrated wastewater
CN106116054A (en) * 2016-08-17 2016-11-16 谭嘉伟 Track traffic integrated wastewater processes and reclaiming system
CN208279375U (en) * 2018-04-19 2018-12-25 南京中船绿洲环保有限公司 A kind of Sewage from Ships processing equipment
CN108821508A (en) * 2018-06-26 2018-11-16 广州港集团有限公司 The system and method for processing oily wastewater based on domestic sewage processing system
CN212476302U (en) * 2020-04-24 2021-02-05 广州昌硕环保设备有限公司 Industrial water treatment equipment
CN112876005A (en) * 2021-04-21 2021-06-01 广东柏然环保科技有限公司 Ship sewage collecting and treating device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
孙永明主编: "《微生物油脂发酵与加工技术》", 31 January 2016, 中国轻工业出版社, pages: 118 - 300 *
孙永明主编: "《海洋与港口船舶防污染技术》", 人民交通出版社, pages: 299 - 300 *

Similar Documents

Publication Publication Date Title
US20090272681A1 (en) Recycle water treatment system for car wash
US8025798B2 (en) Modular biological fluidized bed reactor system
CN101428946A (en) Integrated treatment process and equipment for domestic wastewater
CN208071546U (en) A kind of chemical wastewater treatment standard emission system
CN209493455U (en) Highly concentrated oil-bearing wastewater advanced treatment system
KR101678202B1 (en) Leachate treatment system for waste landfill
KR101210536B1 (en) Sewage treat device for marine use
CN220132055U (en) Treatment system for special industrial wastewater
CN211111442U (en) Oil removal and sand removal system for kitchen sewage
CN208562084U (en) A kind of integrated sewage processor
CN113800717A (en) Ship wastewater treatment device and treatment process thereof
CN110655265A (en) Method for treating pharmaceutical wastewater
JP5270247B2 (en) Wastewater treatment facility at food processing plant
CN213202741U (en) MTO effluent disposal system
CN211620294U (en) Traditional chinese medicine effluent disposal system
CN201099648Y (en) Low infiltration oil extraction sewage processor for oilfield reinjection
CN112979085A (en) Emulsification type high-oil-content wastewater treatment system and method
CN1162360C (en) Process for treating sewage of oil recovery
CN216972272U (en) Organic wastewater treatment system
KR20170119950A (en) An apparatus for advanced waste water treatment and its operational methods
CN211946698U (en) Rural sewage treatment system
CN217459141U (en) Micro-nano bubble oxygenation purifies food and beverage greasy dirt waste water treatment ware
CN109987793A (en) A kind of STEVIA REBAUDIANA processing waste water processing system
CN213357265U (en) Cutting fluid effluent disposal system
CN217972910U (en) Chondroitin sulfate waste water treatment 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