CN112661353A - Sled dress formula petroleum hydrocarbon pollutes prosthetic sewage treatment plant in place - Google Patents
Sled dress formula petroleum hydrocarbon pollutes prosthetic sewage treatment plant in place Download PDFInfo
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- CN112661353A CN112661353A CN202011513202.8A CN202011513202A CN112661353A CN 112661353 A CN112661353 A CN 112661353A CN 202011513202 A CN202011513202 A CN 202011513202A CN 112661353 A CN112661353 A CN 112661353A
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Abstract
The invention discloses a skid-mounted sewage treatment device for repairing a petroleum hydrocarbon polluted site, which comprises: the device comprises a machine body, a water inlet pipeline, a water outlet pipeline, a temporary recovery storage tank, an oil separation unit, an electric flocculation unit, an air flotation unit, a biological treatment unit, a precipitation unit and a central control unit. Through the mode, the skid-mounted sewage treatment device for repairing the petroleum hydrocarbon polluted site adopts an integrated design aiming at the development of sewage containing petroleum hydrocarbon pollutants, and is simple in structure and convenient to operate; TPH pollutants in a water body are subjected to cooperative operation by adopting a plurality of processes, the treatment effect is obvious, and the TPH pollutants can be used for treating sewage or underground water in a heavily-polluted petroleum hydrocarbon polluted site; no additional chemical agent is added, secondary pollution is effectively avoided, the method can also be used for treating underground water and leaching or extracting wastewater, the overall efficiency is improved, and the repair cost is reduced.
Description
Technical Field
The invention relates to the technical field of polluted site remediation, in particular to a skid-mounted sewage treatment device for remediation of a petroleum hydrocarbon polluted site.
Background
Petroleum Hydrocarbons (TPH) are one of the most common contaminants in soil and groundwater. In the polluted site remediation, petroleum hydrocarbon is often transferred to a liquid phase in an extraction or leaching manner and is separately collected and treated; for petroleum hydrocarbon contaminants in groundwater, extraction-reinjection or in situ bioremediation techniques are commonly used.
However, the existing treatment technologies for the petroleum hydrocarbon-containing polluted water body have some defects, such as long repair period and poor toxicity resistance of biotechnology when the concentration of pollutants is higher, and are not suitable for repairing seriously polluted groundwater; in the extraction-reinjection repairing mode, chemical agents are usually added into underground water during treatment, so that secondary pollution is easily caused. Therefore, how to efficiently treat the sewage containing TPH pollutants and avoid the generation of secondary pollution is one of the problems to be solved urgently in the process of repairing the polluted site.
Disclosure of Invention
The invention aims to solve the problem of treatment of petroleum hydrocarbon sewage in the existing polluted site remediation, and provides a treatment method of petroleum hydrocarbon sewage. In order to achieve the purpose, the invention adopts the technical scheme that: provides a skid-mounted sewage treatment device for the remediation process of petroleum hydrocarbon polluted sites.
In order to solve the technical problems, the invention adopts a technical scheme that:
the utility model provides a sled dress formula petroleum hydrocarbon pollutes prosthetic sewage treatment plant in place which includes: a machine body, a water inlet pipeline, a water outlet pipeline, a temporary recovery storage tank, an oil separation unit, an electric flocculation unit, an air flotation unit, a biological treatment unit, a sedimentation unit and a central control unit,
the oil separation unit, the electric flocculation unit, the air flotation unit, the biological treatment unit and the sedimentation unit are sequentially connected and arranged in the machine body, the water inlet pipeline is connected with the oil separation unit, the water outlet pipeline is connected with the sedimentation unit, the temporary recovery storage tank is arranged at the bottom of the machine body, the oil separation unit and the air flotation unit are communicated with the temporary recovery storage tank,
the oil separation unit comprises an oil separation pool, an oil separation plate, an oil discharge pipe and an oil suction pump, the oil separation plate is arranged at the upper part and the lower part in the oil separation pool, one end of the oil discharge pipe is communicated with the oil separation pool, the other end of the oil discharge pipe is connected with a recycling temporary storage pool,
the electric flocculation unit comprises an electric flocculation tank, a power supply and an electrode plate, the electrode plate connected with the power supply is arranged in the electric flocculation tank,
the air floatation unit comprises an air floatation tank, an air compressor, an aeration device, an activated carbon filter tank for VOCs treatment, an activated carbon packing layer, an exhaust pipe, a slag discharge pipe and a slag discharge pump, wherein the air compressor is connected with the aeration device, the aeration device is arranged at the lower part of the air floatation tank, the top surface of the air floatation tank is provided with a gas collecting hood for collecting gas and communicated with the activated carbon filter tank through a gas pipeline, the activated carbon packing layer is arranged in the activated carbon filter tank, the exhaust pipe is arranged at the tail end of the activated carbon filter tank, one end of the slag discharge pipe is communicated with the upper part of the air floatation tank, and the other end of the slag discharge pipe is communicated with the slag discharge pipe,
the biological treatment unit comprises a biological filter and a biological filler layer arranged in the biological filter, the sedimentation unit comprises a sedimentation tank and a sedimentation inclined plate, the bottom surface of the sedimentation tank is connected with a sludge discharge pipe,
the central control unit is connected with each functional unit through a sensor and controls the operation, control and adjustment of each unit through a valve.
In a preferred embodiment of the invention, an extraction tank is arranged between the oil separation tank and the electric flocculation unit.
In a preferred embodiment of the present invention, the water inlet pipe is communicated with the upper part of the oil separation tank.
In a preferred embodiment of the invention, the electric flocculation tank is communicated with the oil separation tank through a first connecting pipe.
In a preferred embodiment of the invention, the air flotation tank is communicated with the electric flocculation tank through a second connecting pipe, and the upper part of the biological filter is communicated with the air flotation tank through a third connecting pipe.
In a preferred embodiment of the invention, the upper part of the sedimentation tank is connected with the lower part of the biological filter tank through a fourth connecting pipe, so that the port of the fourth connecting pipe connected with the biological filter tank is positioned below the biological filler layer.
In a preferred embodiment of the invention, a plurality of sedimentation funnels are arranged at the bottom of the sedimentation tank, and the bottom surfaces of the sedimentation funnels are communicated with the sludge discharge pipeline.
In a preferred embodiment of the invention, the air floatation tank is also connected with an ozone generator.
The invention has the beneficial effects that: aiming at the development of sewage containing petroleum hydrocarbon pollutants, the integrated design is adopted, the structure is simple, and the operation is convenient; TPH pollutants in a water body are subjected to cooperative operation by adopting a plurality of processes, the treatment effect is obvious, and the TPH pollutants can be used for treating sewage or underground water in a heavily-polluted petroleum hydrocarbon polluted site; no additional chemical agent is added, secondary pollution is effectively avoided, the method can also be used for treating underground water and leaching or extracting wastewater, the overall efficiency is improved, and the repair cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic flow diagram of a preferred embodiment of a skid-mounted petroleum hydrocarbon contaminated site remediation sewage treatment plant of the present invention;
FIG. 2 is a schematic structural diagram of a preferred embodiment of the skid-mounted sewage treatment plant for remediation of petroleum hydrocarbon contaminated sites.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, an embodiment of the present invention includes:
the utility model provides a sled dress formula petroleum hydrocarbon pollutes prosthetic sewage treatment plant in place, its structure includes: the device comprises a machine body, a water inlet pipeline 81, a water outlet pipeline 82, a temporary recovery storage tank 7, an oil separation unit, an electric flocculation unit, an air floatation unit, a biological treatment unit and a precipitation unit.
The oil removal unit, the electric flocculation unit, the air flotation unit, the biological treatment unit and the precipitation unit are sequentially arranged in the machine body, the water inlet pipeline is connected with the oil removal unit, the water outlet pipeline is connected with the precipitation unit, the recycling temporary storage tank is arranged at the bottom of the machine body, the oil removal unit and the air flotation unit are communicated with the recycling temporary storage tank so as to introduce impurities generated by the oil removal unit and the air flotation unit into the recycling temporary storage tank, recycle the impurities and treat the impurities uniformly.
In addition, other treatment units can be added according to the actual sewage quality, for example, if the pollution is serious, an extraction tank can be additionally arranged between the oil separation tank and the electric flocculation unit.
The oil separation unit comprises an oil separation tank 1, an oil separation plate 11, an oil pumping pipe and an oil well pump, the water inlet pipeline is communicated with the upper part of the oil separation tank, the oil separation plate is positioned on the upper part in the oil separation tank, one end of the oil pumping pipe is communicated with the oil separation tank and is positioned above the outlet of the bottom surface of the water inlet pipeline, and the other end of the oil pumping pipe is connected with the recovery temporary storage tank through the oil well pump.
The electric flocculation unit comprises an electric flocculation tank 2, a power supply 21 and a plate electrode 22, the electric flocculation tank is communicated with the oil separation tank through a first connecting pipe, and the plate electrode connected with the power supply is arranged in the electric flocculation tank.
The air supporting unit includes air supporting pond 3, air compressor machine, ozone generating device 31, aeration equipment 32, is used for carrying on VOCs treatment's active carbon filter 6, active carbon filler 61, blast pipe 83, row's sediment pipe, row's sediment pump, the air supporting pond is linked together through second connecting pipe and electric flocculation tank, ozone generating device with the air supporting pond is connected, the air compressor machine with aeration equipment is connected, just aeration equipment set up in the lower part of air supporting pond, the top surface in air supporting pond is linked together through vent pipe and active carbon filter, and active carbon filler sets up in the active carbon filter, the end of active carbon filter is provided with the blast pipe, the gas that the air supporting pond overflowed lets in the active carbon filter, and VOCs who gets rid of through active carbon adsorption, discharge up to standard after filtering. One end of the slag discharge pipe is communicated with the upper part of the air floatation tank, and the other end of the slag discharge pipe is communicated with the slag discharge pump and is connected with the recycling temporary storage tank.
Use the air compressor machine as leading, through the microbubble that emits, make aquatic impurity float, if aquatic organic matter pollutes more, multiplicable ozone generator to produce the ozone microbubble, not only make impurity float, can also degrade aquatic organic matter.
The biological treatment unit comprises a biological filter 4 and a biological filler layer 41, the upper part of the biological filter is communicated with the air floatation tank through a third connecting pipe, and the biological filler is arranged in the middle of the biological filter.
The sedimentation unit includes sedimentation tank 5, arranges mud pipeline 84, the upper portion of sedimentation tank pass through the fourth connecting pipe with the lower part of biological filter is connected for the port of the fourth connecting pipe that is connected with the biological filter is located the below of bio-packing layer, the bottom of sedimentation tank is provided with the precipitate of a plurality of infundibulate structures, the bottom surface of precipitate with it is linked together to arrange the mud pipeline.
The treatment steps of the skid-mounted sewage treatment device for repairing the petroleum hydrocarbon polluted site comprise:
1. after underground water (or sewage generated in the low restoration process of the petroleum hydrocarbon polluted site) in the petroleum hydrocarbon polluted site is extracted and collected, the underground water firstly enters an oil separation tank, surface floating oil and underwater heavy oil in a polluted water body are removed by an oil separation plate in the oil separation tank, the surface floating oil and the underwater heavy oil are collected and enter a temporary recovery storage tank, and the sewage enters a downstream electric flocculation tank.
2. The electric flocculation tank utilizes an external power supply to apply voltage to the sewage to coagulate the colloidal wastewater, and realizes demulsification and oil removal without adding chemical agents, so that petroleum hydrocarbon organic matters emulsified in the wastewater are removed (more than 90%).
3. And after the completion of flocculation, water enters an air floatation tank, an air compressor and an aeration device introduce small bubbles into the water body, overflow gas is collected by a gas collecting hood and enters an activated carbon filter tank, residual VOCs are treated, and after the completion of air floatation restoration, a slag discharging pipe discharges slag and a sludge pipeline. Wherein, according to the pollutant in the sewage, this unit can add ozone generating device, utilizes ozone-air supporting technology, reaches three kinds of effects simultaneously: firstly, oxidizing and degrading other organic pollutants in a water body by using the strong oxidizing property of ozone; secondly, impurities generated by electric flocculation are coagulated by the aid of the coagulation of ozone, so that the impurities are easy to remove; and thirdly, realizing solid-liquid separation and blow-off of VOCs by air floatation.
4. The water body enters a biological filter tank, a filler loaded with petroleum hydrocarbon degrading bacteria and organic matter degrading bacteria is arranged in the biological filter tank, and when the water body slowly passes through the filler, the residual small amount of petroleum hydrocarbon and organic matter are adsorbed and degraded by the petroleum hydrocarbon degrading bacteria and the organic matter degrading bacteria.
5. The water body after being treated can be directly reinjected underground after being precipitated in the sedimentation tank, reused for devices such as leaching and the like, and used for adjusting the moisture content of thermal desorption soil or discharged into a municipal pipe network, and sludge is collected for centralized treatment.
The skid-mounted sewage treatment device for repairing the petroleum hydrocarbon polluted site has the beneficial effects that:
(1) the integrated design is simple in structure and convenient to operate; the TPH pollutants in the water body are subjected to cooperative operation by adopting a plurality of processes, the treatment effect is very obvious, and the TPH pollutants can be used for treating sewage or underground water in a heavily-polluted petroleum hydrocarbon polluted site.
(2) No additional chemical agent is added, so that the generation of secondary pollution is completely avoided; in the process of restoring petroleum hydrocarbon polluted sites, the method can be used for treating underground water and leaching or extracting wastewater, so that the overall efficiency is improved, and the restoration cost is reduced.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The utility model provides a sled dress formula petroleum hydrocarbon pollutes prosthetic sewage treatment plant in place which characterized in that includes: a machine body, a water inlet pipeline, a water outlet pipeline, a temporary recovery storage tank, an oil separation unit, an electric flocculation unit, an air flotation unit, a biological treatment unit, a sedimentation unit and a central control unit,
the oil separation unit, the electric flocculation unit, the air flotation unit, the biological treatment unit and the sedimentation unit are sequentially connected and arranged in the machine body, the water inlet pipeline is connected with the oil separation unit, the water outlet pipeline is connected with the sedimentation unit, the temporary recovery storage tank is arranged at the bottom of the machine body, the oil separation unit and the air flotation unit are communicated with the temporary recovery storage tank,
the oil separation unit comprises an oil separation pool, an oil separation plate, an oil discharge pipe and an oil suction pump, the oil separation plate is arranged at the upper part and the lower part in the oil separation pool, one end of the oil discharge pipe is communicated with the oil separation pool, the other end of the oil discharge pipe is connected with a recycling temporary storage pool,
the electric flocculation unit comprises an electric flocculation tank, a power supply and an electrode plate, the electrode plate connected with the power supply is arranged in the electric flocculation tank,
the air floatation unit comprises an air floatation tank, an air compressor, an aeration device, an activated carbon filter tank for VOCs treatment, an activated carbon packing layer, an exhaust pipe, a slag discharge pipe and a slag discharge pump, wherein the air compressor is connected with the aeration device, the aeration device is arranged at the lower part of the air floatation tank, the top surface of the air floatation tank is provided with a gas collecting hood for collecting gas and communicated with the activated carbon filter tank through a gas pipeline, the activated carbon packing layer is arranged in the activated carbon filter tank, the exhaust pipe is arranged at the tail end of the activated carbon filter tank, one end of the slag discharge pipe is communicated with the upper part of the air floatation tank, and the other end of the slag discharge pipe is communicated with the slag discharge pipe,
the biological treatment unit comprises a biological filter and a biological filler layer arranged in the biological filter, the sedimentation unit comprises a sedimentation tank and a sedimentation inclined plate, the bottom surface of the sedimentation tank is connected with a sludge discharge pipe,
the central control unit is connected with each functional unit through a sensor and controls the operation, control and adjustment of each unit through a valve.
2. The skid-mounted sewage treatment device for repairing the petroleum hydrocarbon polluted site as claimed in claim 1, wherein an extraction tank is arranged between the oil separation tank and the electric flocculation unit.
3. The skid-mounted sewage treatment plant for repairing a petroleum hydrocarbon polluted site as recited in claim 1, wherein said water inlet pipeline is communicated with the upper part of said oil separation tank.
4. The skid-mounted sewage treatment device for repairing a petroleum hydrocarbon polluted site as claimed in claim 1, wherein the electrocoagulation tank is communicated with the oil separation tank through a first connecting pipe.
5. The skid-mounted sewage treatment device for repairing the petroleum hydrocarbon polluted site as claimed in claim 1, wherein the air flotation tank is communicated with the electrocoagulation tank through a second connecting pipe, and the upper part of the biological filter is communicated with the air flotation tank through a third connecting pipe.
6. The skid-mounted sewage treatment device for repairing a petroleum hydrocarbon polluted site as claimed in claim 1, wherein the upper part of the sedimentation tank is connected with the lower part of the biological filter through a fourth connecting pipe, so that a port of the fourth connecting pipe connected with the biological filter is positioned below the biological filler layer.
7. The skid-mounted sewage treatment device for repairing the petroleum hydrocarbon polluted site as claimed in claim 1, wherein a plurality of sedimentation funnels are arranged at the bottom of the sedimentation tank, and the bottom surfaces of the sedimentation funnels are communicated with the sludge discharge pipeline.
8. The skid-mounted sewage treatment device for repairing a petroleum hydrocarbon polluted site as claimed in claim 1, wherein an ozone generator is further connected to the air flotation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011513202.8A CN112661353A (en) | 2020-12-21 | 2020-12-21 | Sled dress formula petroleum hydrocarbon pollutes prosthetic sewage treatment plant in place |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011513202.8A CN112661353A (en) | 2020-12-21 | 2020-12-21 | Sled dress formula petroleum hydrocarbon pollutes prosthetic sewage treatment plant in place |
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| CN112661353A true CN112661353A (en) | 2021-04-16 |
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| CN202011513202.8A Pending CN112661353A (en) | 2020-12-21 | 2020-12-21 | Sled dress formula petroleum hydrocarbon pollutes prosthetic sewage treatment plant in place |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113121045A (en) * | 2021-04-21 | 2021-07-16 | 江苏京源环保股份有限公司 | Electric flocculation ozone coupling sewage treatment device for collecting produced gas |
| CN114260301A (en) * | 2022-01-25 | 2022-04-01 | 森特士兴环保科技有限公司 | Skid-mounted multiphase extraction equipment system |
| CN118579966A (en) * | 2024-08-07 | 2024-09-03 | 生态环境部南京环境科学研究所 | Rapid degradation equipment and degradation method for high-concentration petroleum hydrocarbon in underground water |
-
2020
- 2020-12-21 CN CN202011513202.8A patent/CN112661353A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113121045A (en) * | 2021-04-21 | 2021-07-16 | 江苏京源环保股份有限公司 | Electric flocculation ozone coupling sewage treatment device for collecting produced gas |
| CN114260301A (en) * | 2022-01-25 | 2022-04-01 | 森特士兴环保科技有限公司 | Skid-mounted multiphase extraction equipment system |
| CN118579966A (en) * | 2024-08-07 | 2024-09-03 | 生态环境部南京环境科学研究所 | Rapid degradation equipment and degradation method for high-concentration petroleum hydrocarbon in underground water |
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