CN211035324U - Port chemical tank washing water treatment system based on ultrasonic enhanced micro-electrolysis - Google Patents
Port chemical tank washing water treatment system based on ultrasonic enhanced micro-electrolysis Download PDFInfo
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- CN211035324U CN211035324U CN201921410896.5U CN201921410896U CN211035324U CN 211035324 U CN211035324 U CN 211035324U CN 201921410896 U CN201921410896 U CN 201921410896U CN 211035324 U CN211035324 U CN 211035324U
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Abstract
The utility model discloses a harbor chemical tank washing water treatment system based on ultrasonic intensified micro-electrolysis, which comprises an adjusting tank, a reaction tank and an ultrasonic generator, wherein the adjusting tank is connected with the reaction tank; the regulating tank is an open tank body, and the reaction tank is a closed cylindrical tank body which is divided into an upper micro-electricity reaction area and a lower aeration mixing area by a built-in supporting layer; the bearing layer is a cylindrical porous structure formed by bonding a plurality of broken stone blocks; the micro-electrolysis reaction zone is filled with a micro-electrolysis reaction layer formed by a mixture of activated carbon particles and scrap iron; the ultrasonic generator is communicated to the top surface of the micro-electric reaction layer through an ultrasonic transducer; this processing system can all have better treatment effect to the various high concentration difficult degradation organic matters that contain in the chemical wash-tank water, is showing and promotes biochemical ability, effectively solves that traditional treatment process can't adapt to the undulant big, the pollutant composition is complicated scheduling problem of quality of water, and equipment constitutes simply, be difficult for impaired, long service life, and operation maintenance is convenient, and the treatment cost is low.
Description
Technical Field
The utility model relates to a sewage treatment technical field, in particular to harbour chemicals wash tank water treatment system based on little electrolysis is reinforceed to supersound.
Background
The bulk chemical transportation for loading and unloading at ports in China begins in the early eighties, the bulk chemical transportation volume of ports such as Shanghai, Ningbo, Dalian, Tianjin, Xiamen, Guangzhou and the like is remarkably increased at present, wherein more than 60 percent of bulk chemical transportation in China is born by four ports of Shanghai, Ningbo, Dalian and Tianjin. The port bulk chemicals mainly loaded and unloaded in Shanghai include sulfuric acid, oxalic acid, benzene, toluene, p-xylene, styrene, ethyl acetate, animal and vegetable oils, and the like. The major chemicals loaded and unloaded by Tianjin harbor include toluene, xylene, ethyl acrylate, and the like. Meanwhile, according to statistical data released by the department of transportation, the throughput of dangerous chemical ports of Yangtze river main lines in 2020 reaches 2.2 hundred million tons/year, and the yield of chemical cabin-washing wastewater exceeds 2 ten thousand tons/year.
The chemical tank washing water has the characteristics that (1) the types of organic matters are various, namely about 50 kinds of oil in the chemical transported in the port at home at present are difficult to degrade, (2) the concentration of pollutants is high, namely the concentration of COD pollutants in the tank washing wastewater reaches more than 1000 mg/L, (3) the water quality has great randomness, namely the variety change required by the transportation of bulk chemicals is great, so that the water quality has great randomness, and the tank washing water treatment difficulty is increased, and (4) the biodegradability is low, namely the biodegradability of a large amount of difficult-to-degrade organic matters contained in the chemical tank washing water is proved to be great, and according to investigation, the Biodegradability (BOD) of the chemical tank washing water5COD) is only 0.1-0.2, and cannot be effectively removed by the conventional biological treatment process.
As a contracting country for internationally preventing ships from causing pollution convention (MARPO L73/78), in order to effectively control the pollution of port oily water and bulk harmful chemical liquid substances, on the basis of the appended rule II of MARPO L73/78, a marine regulation for preventing ships from polluting is made.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a satisfy harbour chemicals tank washing water processing system that is difficult to biodegradable, realize macromolecule organic pollutant's broken chain, improve waste water biodegradability, effectively reduce follow-up biological treatment load and cost.
Therefore, the utility model discloses technical scheme as follows:
a port chemical tank washing water treatment system based on ultrasonic enhanced micro-electrolysis comprises an adjusting tank, a reaction tank and an ultrasonic generator; wherein the content of the first and second substances,
the adjusting tank is an open tank body, a first water inlet pipe is arranged on the side wall of the adjusting tank close to the tank opening, and a first water outlet pipe is arranged on the side wall of the adjusting tank close to the tank bottom;
the reaction tank is a closed cylindrical tank body, and a bearing layer is arranged in the tank body, so that the inner cavity of the tank body is divided into a micro-electric reaction area at the upper part and an aeration mixing area at the lower part; the bearing layer is a cylindrical porous structure formed by bonding a plurality of broken stone blocks and is fixed on the inner wall of the tank body; the lower part of the micro-electric reaction area is filled with a micro-electrolysis reaction layer formed by a mixture of activated carbon particles and scrap iron; the bottom surface of the tank body is provided with a second water inlet pipe, the side wall of the tank body positioned in the aeration mixing area is provided with an air inlet pipe, the side wall of the tank body positioned in the micro-electricity reaction area is provided with a second water outlet pipe, and the top surface of the tank body is provided with an ultrasonic transducer; one end of the ultrasonic transducer is connected with the ultrasonic generator, and the other end of the ultrasonic transducer extends to the position close to the top surface of the micro-electric reaction layer;
the first water outlet pipe is connected with the second water inlet pipe through a connecting pipe, and a lift pump and a first flow regulating valve are arranged on the connecting pipe; and the port of the outer end of the air inlet pipe is connected with an air pump through a pipeline.
Further, the frequency generation range of the ultrasonic generator is 20-40 Hz.
Furthermore, the volume of the micro-electricity reaction area accounts for 4/5 of the volume of the inner cavity of the tank body, and the height of the bearing layer is 0.1-0.3 m.
Further, the volume of the micro-electricity reaction layer occupies 3/5-4/5 of the volume of the micro-electricity reaction area.
Further, the micro-electrolysis reaction layer is formed by a mixture of scrap iron and activated carbon particles in a weight ratio of 3: 1-4: 1, and the total volume of the micro-electrolysis reaction layer accounts for 3/5 of the volume of the micro-electrolysis reaction area; wherein the iron filings are iron filings with the particle size range of 2.0-5.0 mm, and the activated carbon particles are activated carbon particles with the particle size range of 1.5-3.0 mm.
Further, the flow regulating range of the flow regulating valve meets the requirement that the retention time of the wastewater in the reaction tank is 1-1.5 h.
Further, at least one lifting pump is arranged in the adjusting tank.
Furthermore, a second liquid flow regulating valve is arranged on the second water outlet pipe, and a gas flow regulating valve is arranged on the gas inlet pipe.
Compared with the prior art, the port chemical tank washing water treatment system based on ultrasonic reinforced micro-electrolysis has the beneficial effects that:
1) the system has good treatment effect on various high-concentration refractory organic matters contained in the chemical tank washing water, and can remarkably improve the biochemical performance (BOD)5COD), effectively solving the problems that the traditional treatment process can not adapt to large water quality fluctuation, complex pollutant components and the like;
2) the system has simple equipment structure, is not easy to be damaged, has long service life and convenient operation and maintenance, does not need to replace the active carbon material, and only needs to add scrap iron every half year;
3) the system adopts wood shavings or waste scrap irons, so that the treatment cost can be effectively reduced, and the resource utilization of industrial waste residues is realized.
Drawings
Fig. 1 is a schematic structural diagram of the port chemical tank-washing water treatment system based on ultrasonic enhanced micro-electrolysis of the utility model.
Detailed Description
The present invention will be further described with reference to the following drawings and specific examples, but the following examples are by no means limiting the present invention. In addition, in the description of the present embodiment, the terms "connected", "communicating", and the like are to be construed broadly unless otherwise explicitly specified or limited.
As shown in figure 1, the port chemical tank-washing water treatment system based on ultrasonic enhanced micro-electrolysis comprises a regulating tank 1, a reaction tank 3 and an ultrasonic generator 6; wherein the content of the first and second substances,
the adjusting tank 1 is an open tank body provided with a lifting pump therein, a first water inlet pipe 101 is arranged at the side wall of the tank body close to the tank opening, a first water outlet pipe 102 is arranged at the side wall of the tank body close to the tank bottom, and the water inlet pipe 101 and the water outlet pipe 102 are respectively arranged on the side walls at the opposite sides of the adjusting tank 1; the first water inlet pipe 101 is communicated with a water outlet pipeline of the ship tank washing water storage cabin through a connecting pipe, ship tank washing water is firstly led into the regulating tank 1, a submersible pump is arranged in a tank body of the regulating tank 1, and the effect of the first water inlet pipe is to control the treatment speed of the tank washing water, namely, the tank washing water in the regulating tank 1 is discharged into the reaction tank 3 at a stable speed according to the treatment capacity preset in the reaction tank 3, so that the purpose of achieving the optimal treatment efficiency of the reaction tank 3 is achieved;
the reaction tank 3 is a closed cylindrical tank body; a supporting layer 301 is arranged in the cylindrical tank body, so that the inner cavity of the tank body is divided into a micro-electric reaction area at the upper part and an aeration mixing area at the lower part; specifically, the supporting layer 301 is a cylindrical porous structure formed by bonding a plurality of crushed stones with the particle size of 25-40 mm, and the outer diameter of the supporting layer is adapted to the inner diameter of the tank body, so that the supporting layer 301 is bonded and fixed on the inner wall of the tank body; wherein the volume of the micro-electricity reaction zone accounts for 4/5 of the volume of the inner cavity of the tank body, and the height of the supporting layer is about 0.3 m;
the lower part of the micro-electric reaction area is filled with a micro-electrolysis reaction layer 302 formed by a mixture of activated carbon particles and scrap iron; 3/5, mixing the scrap iron and the activated carbon particles which form the micro-electrolysis reaction layer 302 according to the weight ratio of 3:1, wherein the total volume of the scrap iron and the activated carbon particles accounts for the volume of the micro-electrolysis reaction area; wherein the scrap iron is iron shaving or waste scrap iron which is subjected to oil removal and oxide film removal treatment, and the particle size range of the scrap iron is 2.0-5.0 mm; the active carbon particles are active carbon particles with the particle size range of 1.5-3.0 mm;
a second water inlet pipe 303 is arranged at the bottom of the tank body of the reaction tank 3, an air inlet pipe 304 is arranged on the side wall of the tank body positioned in the aeration mixing area, a second water outlet pipe 305 is arranged on the side wall of the tank body positioned in the micro-electricity reaction area, and an ultrasonic transducer 306 is arranged on the top surface of the tank body; a second flow regulating valve is also arranged on the second water outlet pipe 305;
the regulating reservoir 1 is communicated with the reaction reservoir 3, specifically, the first water outlet pipe 102 is connected with the second water inlet pipe 303 through a connecting pipe, and a lift pump 2 and a flow regulating valve 4 are arranged on the connecting pipe; wherein the opening degree of the flow regulating valve 4 meets the requirement that the retention time of the wastewater in the reaction tank 3 is 1-1.5 h;
the port of the outer side end of the air inlet pipe 304 is connected with an air pump 5 arranged at the adjacent side of the reaction tank body through a pipeline and is used for pumping air to the aeration mixing zone, so that the ship cabin washing water to be treated firstly mixes with the air in the aeration mixing zone and then enters the micro-electric reaction zone through the supporting layer 301; the gas inlet pipe 304 is provided with a gas flow regulating valve to realize control of the gas-liquid mixing ratio of the aeration mixing area;
one end of the ultrasonic transducer 306 is connected with the ultrasonic generator 6, and the other end extends to the position close to the top surface of the micro-electrolysis reaction layer 302; wherein, the ultrasonic generator 6 is arranged at the adjacent side of the reaction tank 3, and the generation frequency is set as 40 Hz;
the port chemical tank washing water treatment system based on ultrasonic enhanced micro-electrolysis has the working principle that: the method comprises the following steps that firstly, chemical cabin washing water enters an adjusting tank 1, water quantity fluctuation is adjusted through the adjusting tank 1, a lifting pump is started, and the chemical cabin washing water is lifted into a reaction tank 3; opening the ultrasonic generator 6 and simultaneously opening the gas flow regulating valve, pumping the air into the aeration reaction zone according to a certain gas-liquid mixing ratio and flowing the air through the aeration reaction zoneMixing the amount-adjusted chemical cabin washing water, and then entering a micro-electric reaction zone through a supporting layer 301; chemical cabin washing water mixed with a certain proportion of air enters the microelectrolysis reaction zone and contacts with the microelectrolysis reaction layer, and Fe and tiny primary batteries formed by waste scrap iron and activated carbon particles are utilized0Electron on is continuously transferred to H+To produce a strong reducing agent [ H ]]The organic matter which is difficult to degrade can be quickly reduced into the organic matter which is easy to oxidize or biochemically degrade; simultaneously, two comprehensive effects of flocculation adsorption and coprecipitation are generated in the reaction tank, namely colloid and suspended matters in a suspended state are combined into particles easy to precipitate in an ultrasonic enhanced micro-electrolysis state, and other coexisting soluble substances are caused to precipitate together, so that the aim of removing chromaticity and pollutants is fulfilled, and the load of a subsequent biological treatment process is effectively reduced.
After the harbor chemical tank-washing water treatment system of the embodiment is adopted to treat the ship tank-washing water of a ship in a harbor area, the corresponding environmental indexes of the tank-washing water before and after treatment are shown in the following table 1.
Table 1:
as can be seen from Table 1, the COD removal rate of the harbor chemical tank washing water treatment system to the high-concentration chemical tank washing water can reach 50-60%, and the biochemical performance (BOD) can be achieved5The COD is increased from 0.1 to 0.3 to 0.4; therefore, the effluent treated by the system can be connected into a municipal domestic sewage treatment plant for further treatment or connected with a biological treatment system for further degradation of small molecular organic matters, so as to meet the requirement of discharge standard.
The above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A port chemical tank washing water treatment system based on ultrasonic enhanced micro-electrolysis is characterized by comprising an adjusting tank (1), a reaction tank (3) and an ultrasonic generator (6); wherein the content of the first and second substances,
the adjusting tank (1) is an open tank body, a first water inlet pipe (101) is arranged on the side wall of one side of the adjusting tank close to the tank opening, and a first water outlet pipe (102) is arranged on the side wall of the opposite side of the adjusting tank close to the tank bottom;
the reaction tank (3) is a closed cylindrical tank body, and a bearing layer (301) is arranged in the tank body, so that the inner cavity of the tank body is divided into a micro-electric reaction area at the upper part and an aeration mixing area at the lower part; the bearing layer (301) is a cylindrical porous structure formed by bonding a plurality of broken stone blocks and is fixed on the inner wall of the tank body; the lower part of the micro-electric reaction area is filled with a micro-electrolysis reaction layer (302) formed by a mixture of activated carbon particles and scrap iron; a second water inlet pipe (303) is arranged on the bottom surface of the tank body, an air inlet pipe (304) is arranged on the side wall of the tank body positioned in the aeration mixing area, a second water outlet pipe (305) is arranged on the side wall of the tank body positioned in the micro-electricity reaction area, and an ultrasonic transducer (306) is arranged on the top surface of the tank body; one end of the ultrasonic transducer (306) is connected with the ultrasonic generator (6), and the other end extends to a position close to the top surface of the micro-electrolysis reaction layer (302);
the first water outlet pipe (102) is connected with the second water inlet pipe (303) through a connecting pipe, and a lifting pump (2) and a liquid flow regulating valve (4) are arranged on the connecting pipe; and the outer end port of the air inlet pipe (304) is connected with an air pump (5) through a pipeline.
2. The port chemical tank-washing water treatment system based on ultrasonic enhanced micro-electrolysis as claimed in claim 1, wherein the frequency generation range of the ultrasonic generator (6) is 20-40 Hz.
3. The port chemical tank-washing water treatment system based on the ultrasonic-enhanced micro-electrolysis is characterized in that the volume of the micro-electricity reaction area accounts for 4/5 of the volume of the inner cavity of the tank body, and the height of the supporting layer is 0.1-0.3 m.
4. The harbor chemical tank-washing water treatment system based on ultrasonic enhanced micro-electrolysis according to claim 1, characterized in that the volume of the micro-electrolysis reaction layer (302) occupies 3/5-4/5 of the volume of the micro-electrolysis reaction zone.
5. The port chemical tank washing water treatment system based on ultrasonic enhanced micro-electrolysis as claimed in claim 1, wherein the micro-electrolysis reaction layer (302) is formed by a mixture of iron filings and activated carbon particles in a weight ratio of 3: 1-4: 1, and the total volume of the micro-electrolysis reaction layer accounts for 3/5 of the volume of the micro-electrolysis reaction area; wherein the iron filings are iron filings with the particle size range of 2.0-5.0 mm, and the activated carbon particles are activated carbon particles with the particle size range of 1.5-3.0 mm.
6. The port chemical tank-washing water treatment system based on ultrasonic-enhanced micro-electrolysis as claimed in claim 1, wherein the flow regulating range of the liquid flow regulating valve (4) is such that the residence time of wastewater in the reaction tank (3) is 1-1.5 h.
7. Harbor chemical tank-washing water treatment system based on ultrasound-enhanced micro-electrolysis according to claim 1, characterized in that at least one lift pump is arranged in the regulating reservoir (1).
8. The harbor chemical tank-washing water treatment system based on ultrasound-enhanced micro-electrolysis according to claim 1, characterized in that a second liquid flow regulating valve is provided on the second water outlet pipe (305), and a gas flow regulating valve is provided on the gas inlet pipe (304).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921410896.5U CN211035324U (en) | 2019-08-28 | 2019-08-28 | Port chemical tank washing water treatment system based on ultrasonic enhanced micro-electrolysis |
| AU2020101212A AU2020101212A4 (en) | 2019-08-28 | 2020-07-01 | A water treatment system for port chemical tank washings based on ultrasonic enhanced micro electrolysis |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921410896.5U CN211035324U (en) | 2019-08-28 | 2019-08-28 | Port chemical tank washing water treatment system based on ultrasonic enhanced micro-electrolysis |
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| CN211035324U true CN211035324U (en) | 2020-07-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113277657A (en) * | 2021-06-03 | 2021-08-20 | 天津科技大学 | Treatment method of chemical cabin washing water and using device thereof |
| CN116199313A (en) * | 2023-05-05 | 2023-06-02 | 交通运输部天津水运工程科学研究所 | Plug-in type iron-carbon micro-electrolysis equipment for treating chemical washing cabin water |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114751487B (en) * | 2022-03-14 | 2023-03-21 | 常州大学 | High-concentration organic wastewater pretreatment device |
| CN115340232A (en) * | 2022-08-18 | 2022-11-15 | 哈尔滨工业大学（威海） | Organic wastewater treatment device and method |
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2019
- 2019-08-28 CN CN201921410896.5U patent/CN211035324U/en active Active
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- 2020-07-01 AU AU2020101212A patent/AU2020101212A4/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113277657A (en) * | 2021-06-03 | 2021-08-20 | 天津科技大学 | Treatment method of chemical cabin washing water and using device thereof |
| CN116199313A (en) * | 2023-05-05 | 2023-06-02 | 交通运输部天津水运工程科学研究所 | Plug-in type iron-carbon micro-electrolysis equipment for treating chemical washing cabin water |
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| AU2020101212A4 (en) | 2020-08-06 |
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