CN211035541U

CN211035541U - Oily wastewater treatment device for ship

Info

Publication number: CN211035541U
Application number: CN201922106565.9U
Authority: CN
Inventors: 朱莹德; 李欣弘; 王汉雄
Original assignee: Harbin Guanghan Power Industry Development Co ltd
Current assignee: Harbin Guanghan Power Industry Development Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-07-17
Anticipated expiration: 2029-11-29

Abstract

Oily effluent treatment plant is used to boats and ships, the utility model belongs to the waste water treatment field, it solves the current not good problem of oily effluent treatment effect. The utility model discloses oily waste water treatment device for boats and ships separates for coagulating basin along the rivers direction in proper order in the air supporting box, dissolved gas release room, air supporting room and photocatalytic reaction room, the bottom of dissolved gas release room is provided with dissolved gas releaser, dissolved gas release room is linked together through enlarging uncovered and air supporting room, the top of air supporting room is provided with scrapes the sediment machine, the level is provided with the flat board in photocatalytic reaction room, the parallel interval of dull and stereotyped hypoplastron is provided with a plurality of photocatalytic component, the tank wall that the photocatalytic light source passed the air supporting box sets up between adjacent photocatalytic component, the outside cover of photocatalytic light source is equipped with the quartz sleeve pipe. The utility model discloses oily waste water treatment device for boats and ships is an air supporting-photocatalysis combined treatment device, has good degradation effect to the oil material in the oily waste water through photocatalysis advanced treatment.

Description

Oily wastewater treatment device for ship

Technical Field

The utility model belongs to the field of waste water treatment, concretely relates to air supporting-photocatalysis processing apparatus of oily waste water.

Background

Oily wastewater is common industrial wastewater, and oil mainly exists in the form of floating oil, dispersed oil, emulsified oil, dissolved oil and the like in water.

In recent years, with the continuous development of shipping ships, the influence of the discharge of oily wastewater of ships on seawater pollution and water environment is more and more emphasized by people.

The oily wastewater of the ship mainly comes from ship domestic sewage, fuel oil tank sewage, ship ballast water, tank washing sewage generated by washing and the like, and the oily wastewater of the ship contains solid suspended matters and the like besides oil pollutants and is a mixture of fresh water and seawater containing the pollutants. The existing methods for treating the oily wastewater comprise a plurality of methods, such as an air floatation method, a membrane separation method, an ozone oxidation method, a membrane biological reaction method and the like, but a single treatment method cannot achieve a good water treatment effect easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a marine oily wastewater treatment device in order to solve the problem that the existing oily wastewater treatment effect is not good.

The utility model discloses oily waste water treatment facilities for boats and ships includes the flotation tank, the agitator, dissolved air releaser, scrape the sediment machine, the scum pipe, photocatalysis subassembly and photocatalysis light source, the flotation tank is the cuboid box, it has water inlet and delivery port to open respectively on two relative tank walls of flotation tank, separate for the coagulating chamber through the baffle in proper order in the flotation tank along the rivers direction, dissolved air release room, air supporting chamber and photocatalysis reaction chamber, be provided with the agitator in the coagulating chamber, the bottom of dissolved air release room is provided with dissolved air releaser, the upper portion of dissolved air release room has the expansion uncovered, the coagulating chamber communicates with each other with the bottom of dissolved air release room, dissolved air release room is linked together with the flotation chamber through expanding the uncovered, the top of air supporting chamber is provided with scrapes the sediment machine, scum district at the flotation chamber is provided with the scum pipe;

a flat plate is horizontally arranged in a photocatalytic reaction chamber, a plurality of photocatalytic assemblies are arranged on the lower plate surface of the flat plate at intervals in parallel, a photocatalytic light source penetrates through the wall of an air flotation tank and is arranged between the adjacent photocatalytic assemblies, a quartz sleeve is sleeved outside the photocatalytic light source, the photocatalytic assemblies consist of two frame pieces and a carrier loaded with a photocatalyst, the frame pieces are rectangular frames, the carrier loaded with the photocatalyst is clamped between the two frame pieces, and the two frame pieces are connected through bolts; the air flotation chamber is communicated with the bottom of the photocatalytic reaction chamber.

The utility model discloses oily waste water treatment device for boats and ships is mainly including coagulating chamber, dissolve gas release room, air supporting room and photocatalytic reaction room, oily waste water at first gets into coagulating chamber in, throw the flocculating agent in coagulating chamber, make the suspended solid in the waste water take place flocculation reaction, partial flocculate sinks to coagulating chamber's bottom, oily waste water gets into and dissolves in the gas release room, the suspended solid that the flocculation produced combines together with the microbubble that dissolves gas release ware production, the stability of microbubble destruction oil pollutant, the suspended solid floats to the surface of water with microbubble phase combination, realize the solid-solid separation or the liquid-solid separation of colloid and suspended solid, water behind the air supporting gets into photocatalytic reaction room, TiO solid-solid separation or the liquid-solid separation of TiO suspended solid₂The photocatalyst can degrade various organic pollutants including oil-containing substances under the excitation of ultraviolet light, and can degrade oil pollutants into H₂O and CO₂And the like, and has better degradation effect on the dissolved oil.

The utility model discloses oily waste water treatment device for boats and ships is an air supporting-photocatalysis combined treatment device, has good degradation effect to the oil material in the oily waste water through photocatalysis advanced treatment.

Drawings

FIG. 1 is a schematic structural view of the oily wastewater treatment device for a ship of the present invention;

FIG. 2 is a schematic top view of a photocatalytic light source and a photocatalytic assembly;

fig. 3 is a schematic structural view of the clamping frame.

Detailed Description

The first embodiment is as follows: the oily wastewater treatment device for the ship comprises an air flotation tank 1, a stirrer 3, a dissolved air releaser 5, a slag scraper 6, a slag discharge pipe 7, a photocatalytic component 9 and a photocatalytic light source 10, wherein the air flotation tank 1 is a cuboid box body, the device comprises an air flotation tank 1, a water inlet 1-1 and a water outlet 1-2 are respectively arranged on two opposite tank walls of the air flotation tank 1, the air flotation tank 1 is sequentially divided into a coagulation chamber A, a dissolved air release chamber B, an air flotation chamber C and a photocatalytic reaction chamber D by a partition plate 2 along the water flow direction, a stirrer 3 is arranged in the coagulation chamber A, a dissolved air release device 5 is arranged at the bottom of the dissolved air release chamber B, an enlarged opening is arranged at the upper part of the dissolved air release chamber B, the coagulation chamber A is communicated with the bottom of the dissolved air release chamber B, the dissolved air release chamber B is communicated with the air flotation chamber C through the enlarged opening, a slag scraper 6 is arranged at the top of the air flotation chamber C, and a scum area of the air flotation chamber C is provided with a slag discharge pipe;

a flat plate 8 is horizontally arranged in a photocatalytic reaction chamber D, a plurality of photocatalytic assemblies 9 are arranged on the lower plate surface of the flat plate 8 at intervals in parallel, a photocatalytic light source 10 penetrates through the wall of the air flotation tank 1 and is arranged between the adjacent photocatalytic assemblies 9, a quartz sleeve 11 is sleeved outside the photocatalytic light source 10, the photocatalytic assemblies 9 are composed of two frame pieces 9-1 and a photocatalyst-loaded carrier 9-2, the frame pieces 9-1 are rectangular frames, the photocatalyst-loaded carrier 9-2 is clamped between the two frame pieces 9-1, and the two frame pieces 9-1 are connected through bolts 9-1-2; the air flotation chamber C is communicated with the bottom of the photocatalytic reaction chamber D.

In the oily wastewater treatment apparatus for a ship according to the present embodiment, the photocatalytic light source is ultraviolet light, and the photocatalyst-loaded carrier is a flat carrier on which a titanium dioxide photocatalyst is loaded by a sol-gel or anodic oxidation method.

In the embodiment, a sludge discharge pipe is arranged at the bottom of the air flotation chamber.

The second embodiment is as follows: the difference between the embodiment and the embodiment is that a sludge discharge groove 4 is arranged at the bottom of the coagulation chamber A.

The third concrete implementation mode: the difference between the first embodiment and the second embodiment is that a hanging ring 8-1 is provided on the upper plate surface of the flat plate 8.

The rings are connected with the lifting device, and the lifting device lifts the flat plate and the photocatalytic component, so that the photocatalytic component can be conveniently dismounted and mounted.

The fourth concrete implementation mode: the present embodiment is different from the first to third embodiments in that the flat plate 8 is installed in the photocatalytic reaction chamber D.

The fifth concrete implementation mode: this embodiment is different from one of the first to fourth embodiments in that the carrier 9-2 is a stainless steel net or a titanium alloy flat plate.

The sixth specific implementation mode: the difference between the embodiment and one of the first to fifth embodiments is that the oily wastewater treatment device for the ship further comprises a membrane module 12, and the water outlets 1-2 are connected with the membrane module 12 through water pipes.

The effluent of the oily wastewater treatment device for the ship of the embodiment is filtered by the membrane module (plate-type ceramic membrane), and the ceramic membrane is resistant to oil stains and further improves the removal rate of oily substances (dissolved oil).

Example (b): the oily wastewater treatment device for the ship comprises an air flotation tank 1, a stirrer 3, a dissolved air releaser 5, a slag scraping machine 6, a slag discharging pipe 7, a photocatalytic component 9 and a photocatalytic light source (ultraviolet light) 10, wherein the air flotation tank 1 is a cuboid box body, two opposite box walls of the air flotation tank 1 are respectively provided with a water inlet 1-1 and a water outlet 1-2, the air flotation tank 1 is sequentially divided into a coagulation chamber A, a dissolved air release chamber B, an air flotation chamber C and a photocatalytic reaction chamber D by a partition plate 2 along the water flow direction, the stirrer 3 is arranged in the coagulation chamber A, a flocculating agent is added into the coagulation chamber A, the dissolved air releaser 5 is arranged at the bottom of the dissolved air release chamber B, the upper part of the dissolved air release chamber B is provided with an enlarged opening, the bottoms of the coagulation chamber A and the dissolved air release chamber B are communicated, the dissolved air release chamber B is communicated with the air flotation chamber C by the enlarged opening, the top of the air flotation chamber C is provided with a slag scraping, a scum area of the air flotation chamber C is provided with a scum pipe 7;

a flat plate 8 is horizontally arranged in a photocatalytic reaction chamber D, the flat plate 8 is a rectangular frame, a plurality of photocatalytic assemblies 9 are arranged on the lower plate surface of the flat plate 8 at intervals in parallel, the photocatalytic assemblies 9 are arranged vertically to the flat plate 8, a photocatalytic light source 10 penetrates through the rear wall of the air floating box 1 and is arranged between the adjacent photocatalytic assemblies 9, a quartz sleeve 11 is sleeved outside the photocatalytic light source 10, the quartz sleeve 11 is vertical to the rear wall of the air floating box 1, the photocatalytic assemblies 9 are composed of two frame members 9-1 and a photocatalyst-loaded carrier 9-2, the carrier 9-2 is a stainless steel net, the frame member 9-1 is rectangular frame-shaped, the left side and the right side of the frame member 9-1 are respectively provided with an ear plate 9-1-1, the ear plates 9-1-1 of the frame member 9-1 are lapped on the flat plate 8 and fixed through fastening bolts, the photocatalyst-loaded carrier 9-2 is clamped between two frame members 9-1, and the two frame members 9-1 are connected through bolts 9-1-2; the air flotation chamber C is communicated with the bottom of the photocatalytic reaction chamber D, and the water outlet 1-2 is connected with the membrane component 12 through a water pipe.

The photocatalysis light source in the photocatalysis reaction chamber of this embodiment wears to establish between adjacent photocatalysis subassembly from the rear tank wall of air supporting box, the dismouting of the photocatalysis light source of being convenient for and photocatalysis subassembly, photocatalysis subassembly can direct hoist and mount install in the photocatalysis reaction chamber.

The water treatment process of the oily wastewater treatment device for the ship comprises the following steps:

oily waste water flows into the coagulation chamber A, the suspended solid in the waste water and a flocculating agent are subjected to flocculation reaction, partial flocculate is settled to the bottom of the coagulation chamber, the waste water flows into the dissolved gas release chamber B, microbubbles released by the dissolved gas release chamber B are combined with the suspended solid and float to the water surface, scum is brought into the scum pipe 7 along with the scum scraper, the microbubbles can also damage the stability of oil pollutants, the water body continues to enter the photocatalytic reaction chamber D, the dissolved oil is further degraded through the photocatalytic reaction, and finally, small-particle waste residues are removed through the filtration of a ceramic membrane with a submicron-grade aperture.

The oily wastewater treatment device for the ship is an air floatation-photocatalysis combined treatment device, can simultaneously realize high-efficiency removal of oil, suspended matters, soluble organic substances and bacteria, and has the removal rate of oily wastewater reaching 70-85%.

Claims

1. The oily wastewater treatment device for the ship is characterized by comprising an air flotation tank (1), a stirrer (3), a dissolved air releaser (5), a slag scraping machine (6), a slag discharge pipe (7), a photocatalytic component (9) and a photocatalytic light source (10), wherein the air flotation tank (1) is a cuboid box body, two opposite box walls of the air flotation tank (1) are respectively provided with a water inlet (1-1) and a water outlet (1-2), the air flotation tank (1) is sequentially divided into a coagulation chamber (A), a dissolved air release chamber (B), an air flotation chamber (C) and a photocatalytic reaction chamber (D) by a partition plate (2) along the water flow direction, the stirrer (3) is arranged in the coagulation chamber (A), the dissolved air releaser (5) is arranged at the bottom of the dissolved air release chamber (B), the upper part of the dissolved air release chamber (B) is provided with an expansion opening, the bottom of the coagulation chamber (A) is communicated with the bottom of the dissolved air release chamber (B), the dissolved air release chamber (B) is communicated with the air floatation chamber (C) through an enlarged opening, the top of the air floatation chamber (C) is provided with a slag scraper (6), and a scum area of the air floatation chamber (C) is provided with a slag discharge pipe (7);

a flat plate (8) is horizontally arranged in a photocatalytic reaction chamber (D), a plurality of photocatalytic components (9) are arranged on the lower plate surface of the flat plate (8) at intervals in parallel, a photocatalytic light source (10) penetrates through the wall of an air flotation tank (1) and is arranged between the adjacent photocatalytic components (9), a quartz sleeve (11) is sleeved outside the photocatalytic light source (10), the photocatalytic components (9) are composed of two frame pieces (9-1) and a photocatalyst-loaded carrier (9-2), the frame pieces (9-1) are rectangular frames, the photocatalyst-loaded carrier (9-2) is clamped between the two frame pieces (9-1), and the two frame pieces (9-1) are connected through bolts (9-1-2); the air flotation chamber (C) is communicated with the bottom of the photocatalytic reaction chamber (D).

2. The oily wastewater treatment apparatus for marine use according to claim 1, wherein a sludge discharge tank (4) is provided at the bottom of the coagulation chamber (A).

3. The oily wastewater treatment apparatus for the marine vessel as claimed in claim 1, wherein a lifting ring (8-1) is provided on the upper plate surface of the flat plate (8).

4. The oily wastewater treatment device for the ship of claim 1, wherein the flat plate (8) is erected in the photocatalytic reaction chamber (D).

5. The oily wastewater treatment device for the ship as claimed in claim 1, wherein said carrier (9-2) is a stainless steel net or a titanium alloy flat plate.

6. The oily wastewater treatment device for the ship according to claim 1, characterized in that the oily wastewater treatment device for the ship further comprises a membrane module (12), and the water outlets (1-2) are connected with the membrane module (12) through water pipes.