CN103030229A - Oily wastewater treatment device and treatment method in steel industry - Google Patents
Oily wastewater treatment device and treatment method in steel industry Download PDFInfo
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- CN103030229A CN103030229A CN2011102986100A CN201110298610A CN103030229A CN 103030229 A CN103030229 A CN 103030229A CN 2011102986100 A CN2011102986100 A CN 2011102986100A CN 201110298610 A CN201110298610 A CN 201110298610A CN 103030229 A CN103030229 A CN 103030229A
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Abstract
The invention discloses an oily wastewater treatment device and an oily wastewater treatment method in a steel industry. The oily wastewater treatment device is arranged between a regulating tank and a treatment water tank, and the oily wastewater is preliminarily stayed in the regulating tank and then fed to a primary reaction flocculating tank; a coagulant and a coagulant aid medicament are fed into the primary reaction flocculating tank, and sodium hydroxide is fed according to the pH value of water; the oily wastewater successively enters a secondary reaction flocculating tank through a cavitation-aeration air floatation device; the coagulant and the coagulant aid medicament are fed into the secondary reaction flocculating tank, and sodium hydroxide is also fed according to the pH value of the water quality; and the oily wastewater successively enters a sedimentation tank, the overflowing clear water enters a third reaction flocculating tank, the coagulant and the coagulant aid medicament are fed into the third reaction flocculating tank, the sodium hydroxide is fed according to the PH value of the water quality, effluent enters a pressurized floating tank for the air flotation and deoiling treatment again and the purified water flows into the treatment tank. The oily wastewater treatment device and the oily wastewater treatment method in the steel industry are applied to recycling the oily wastewater in the field of the oily wastewater produced in the steel production industry, and have a remarkable effect on saving water resources.
Description
Technical field
The present invention relates to a kind of oil-containing waste water treating device and processing method thereof, relate in particular to a kind of device and processing method thereof that a kind of oily(waste)water of the various sources that produce for steel industry is processed in its production process.
Background technology
At present, oily(waste)water is defined as the waste water that refers to contain the pollution by oil material, especially in the production process of iron and steel, will produce in a large number all kinds of oily(waste)waters, and these waste water mainly come from the process flows such as breaking down, hot rolling, continuous casting, machine maintenance and oil cellar.And the pollution by oil material exists with three kinds of states in waste water usually:
(1) floating oiling, oil droplet size is easy to separate from waste water greater than 100 μ m.
(2) dispersed oil. oil droplet size suspends in water between 10-100 μ m.
(3) oil in water emulsion, oil droplet size is emulsified state less than 10 μ m, is difficult for separating from waste water.
And the oily(waste)water of steel industry has also been contained above three kinds of state oily substances substantially, in addition, because oily(waste)water is from each operations such as breaking down, hot rolling, continuous casting, machine maintenance and oil cellars, directly caused the oil-containing degree greatly different, the water yield of originating simultaneously is little when large also the time, and the difficulty that deals with is larger.
And under the prior art, in the treatment process for oily(waste)water, the method of oily(waste)water being processed by the method for multi-grade oil water separator is arranged, the technical characteristics of the method is as described below: carry out first an oily water separation, the water outlet of oily-water seperating equipment enters the pressurized dissolved air flotation pond, carries out secondary oily water separation again: the water outlet of air flotation pool is sent into oily-water seperating equipment and is carried out oily water separation.
Although this technology can be processed oily(waste)water, its processing speed is slower, and treatment cycle is longer, can't tackle large batch of oily(waste)water.
Also have under the prior art and adopt air supporting to be combined advanced treatment process to oily(waste)water with membrane technique, the technical characteristics of the method is as described below: at first adopt dissolved air flotation process to dispose of sewage, the product water that obtains adopts ultrafiltration membrane treatment system and reverse osmosis treatment system to carry out deep purifying again.
Although this technology also can be processed oily(waste)water, its for the oily(waste)water composition comparatively fixing, in case the oily(waste)water composition is unstable, in the situation of disperseing such as pollution by oil material kind, its processing power is had a greatly reduced quality.
Also have in addition the way oil removing and the suspended substance that adopt electricity flocculation, electro-flotation, remove COD with the method degradation of organic substances of ozone ultrasonic oxidation, thereby the processing problem of solution oily(waste)water makes the oily(waste)water stably reaching standard after the processing.
Yet, under above-mentioned several prior aries for the treatment process that contains waste water, but process for the oily(waste)water of steel industry, seem helpless, mainly be since the oily(waste)water of steel industry possess in enormous quantities, composition is unstable, and the source is the characteristics of discontinuity, the processing of carrying out oily(waste)water with above method has very large difficulty, waste time and energy, and processing efficiency and effect is all undesirable.
Summary of the invention
For solve that oily wastewater treatment method under the prior art can't tackle that steel production industry produces oily(waste)water in enormous quantities, composition is unstable, and the source is the characteristics of discontinuity, the invention provides a kind of oil-containing waste water treating device and treatment process thereof of steel industry, it has overcome the various oily wastewater treatment methods that exist under the current prior art can't be in enormous quantities, high density, and the source is the deficiency of the oily(waste)water processing power of discontinuity, can be to the steel production enterprise oily(waste)water be processed, waste water after the major part processing is recycled as reuse water, reduced environmental pollution.
It is of the present invention specifically that Details as Follows is described:
A kind of oil-containing waste water treating device of steel industry comprises adjustment tank and processes tank, it is characterized in that:
Between described adjustment tank and processing tank, be provided with a cover oil-containing waste water treating device.
Oily(waste)water at first enters adjustment tank, and adjustment tank arranges a manual butterfly valve as a kind of based process equipment at its water inlet manifold place, can control its flooding quantity, prevents that flooding quantity is instantaneous excessive and cause adjustment tank excessive.The Main Function of adjustment tank is with the sedimentation of partial suspended thing and larger floating the oiling of skim particle.Adjustment tank is provided with Sand pump, the macrobead suspended substance that may contain in the oily(waste)water, in adjustment tank, deposit, be pumped into the scum silica frost storage tank by this, afterbody in adjustment tank also is provided with oil suction pump, be installed in the oil collection plate of inhaling on the sand device top oil slick is scraped to the oil suction pump suction port, send into floating upper oil supply tank by oil suction pump, deliver to the waste oil regeneration device processes by the floating shifting pump that oils again.
And process tank as the storage receptacle of the water inflow after processing through oil-containing waste water treating device of the present invention, in tank, be provided with pH meter, can carry out Real-Time Monitoring to water quality, owing to removed most of impurity and most oil content to the water of processing in the tank, can recycle, process the effect that tank has also played regulating pondage, be provided with processing water conveying pump in the exit and provide regenerated recycle-water to the water channel pipe network, also be provided with pressure pump at the processing tank in addition, to process in the tank a part of water and send the pressure air-dissolving tank back to, and dissolve in and remake air supporting behind the air and use.In processing tank, also be provided with a upflow tube, can be with unnecessary water yield overflow discharge.
Described oil-containing waste water treating device comprises the first order reaction flocculation tank, cavitation aeration air-floating apparatus, the second order reaction flocculation tank, settling tank, the third order reaction flocculation tank, groove on the Pressurized flotation, scum silica frost treatment system and medicine system, it is specially, pipeline is connected between one end of first order reaction flocculation tank and the adjustment tank, the other end then with cavitation aeration air-floating apparatus, the second order reaction flocculation tank, settling tank, the third order reaction flocculation tank is connected in order pipeline connection of groove with Pressurized flotation, groove is connected with the processing tank at last again on the Pressurized flotation, the scum silica frost treatment system then in addition respectively with adjustment tank, cavitation aeration air-floating apparatus, settling tank is connected the barrel road and is connected with Pressurized flotation, medicine system then respectively with the first order reaction flocculation tank, the second order reaction flocculation tank is connected with third order reaction flocculation tank pipeline.
More than the function of each equipment as described below:
1) first order reaction flocculation tank after waste water enters the first order reaction flocculation tank, precipitates as early as possible for the ease of the suspended substance in the water, need to be at this zone dosing coagulant and coagulant aids.Coagulant dosage in the water after, with impurity in the water by flocculation and bridging action generation macrobead throw out.In order to obtain better flocculating effect, also need to add a certain amount of coagulant aids, to improve the effect of coagulation.Also can add a certain amount of NaOH according to the water quality situation, regulate the pH value of waste water.On the first order reaction flocculation tank, machine mixer is installed, by churned mechanically effect, accelerate medicament and in water, react with impurity.
2) cavitation aeration air-floating apparatus, cavitation aeration air-floating apparatus is the nucleus equipment in this treatment process, cavitation aeration air-floating apparatus is mainly by the aeration zone, air flotation zone, scraping several parts such as slag system and water exhaust system forms, its principle of work is as follows: raw sewerage at first enters the aeration zone that Cavltation aerator is housed, this district is provided with aerator, the fast rotational of the hollow impellers by the bottom has formed a vacuum zone in water, air on the water surface is pumped under water by hollow pipeline at this moment, and under the shearing force that the bottom impeller fast rotational produces, air is ground into microbubble, pollutent in microbubble and the sewage organically combines, and rises to liquid level.Reach liquid level after stain thing and just rely on these microbubbles to support and maintain on the water surface, by slag scraper scum silica frost is hung into the mud receiving tank, the water after the processing flows to next procedure by overflow groove.
The waste water of the tiny alumen ustum that forms after primary first-order equation groove hybrid reaction flows into distribution reservoir, forms large alumen ustum after mixing with coagulant aids and enters cavitation aeration air-floating apparatus, and water outlet flows into the second order reaction flocculation tank.Scum silica frost after treatment and sediment are sent into slag chute by slag scraper and sludge pump respectively, then send sludge dewatering equipment to process.
3) second order reaction flocculation tank, the effect of second order reaction flocculation tank is identical with the first order reaction flocculation tank, at this zone dosing coagulant and coagulant aids.In order to make medicine and waste water that enough stop mixing times be arranged therein, diaphragm can be set two in anti-, with the raising reaction effect.At first add coagulating agent, sodium hydroxide two in anti-, after stirring, add again coagulant aids, flow into subsequently radiation type precipitation pool and be for further processing.
4) settling tank, the waste water behind coagulation are entered from the settling tank central part by the water inlet open channel and contain oil sump, carry out natural sedimentation in settling tank.Water inlet pipe directly stretches the center, pond, through the tubular water-dispensing cover, water by the bottom to around radially to around flow because water-carrying section progressively enlarges to the fan beam flow path direction, the flow velocity of water is from large and become more and more lower, can make that solid particulate progressively precipitates in the water.More clear liter waterborne such as circular water leg flow out through effluent trough, and silt lodging is at the bottom of the pond.Settling tank is provided with one in collection mud device, and the silt that is deposited on the bottom is scraped to central authorities.The settling tank bottom is provided with two sludge pumps, and the mud that precipitates is entered the scum silica frost storage tank.
5) third order reaction flocculation tank, the effect of third order reaction flocculation tank is identical with I and II reaction flocculation tank, at this zone dosing coagulant and coagulant aids.In order to make medicine and waste water that enough stop mixing times be arranged therein, diaphragm can be set three in anti-, with the raising reaction effect.At first add coagulating agent, sodium hydroxide three in anti-, after stirring, add again coagulant aids, flow into subsequently that groove is for further processing on the Pressurized flotation.
6) groove on the Pressurized flotation, the water after settling tank is processed enters groove on the Pressurized flotation, and groove is by the pressure air-dissolving air-float method still residual small portion impurity to be processed at last on the Pressurized flotation.
Its method is will process water by pressure pump to beat to the dissolving inlet channel, and here pressurized water enters dissolving with after pressurized air that air compressor machine is sent here mixes.In the dissolving, the centre is divided into two parts (water entering section and outlet part) by a dividing plate, is provided with water inlet pipe and rising pipe.Be provided with outlet valve at rising pipe, be provided with vent valve and safety valve at the dissolving top, be provided with liquidometer in the dissolving side, by the switching motion of water level signal control outlet valve, vent valve in the tank.
When from outlet valve air-water mixture out, through the reducing valve energy dissipating, reduce to normal pressure, enter the release case, air supporting discharges case and is placed on the Pressurized flotation trench bottom by ingress, former compressed air sudden outburst this moment, form small bubbles, impurity in the water and oil content are brought to the water surface, and recycling is located at the slag scraper on floating upper groove top the scum silica frost that floats up is scraped into the scum silica frost storage tank, reaches deimpurity purpose.In air flotation pool, by receiving the mud device, remove deposition mud, reduce the clear mud number of times of air flotation pool.
Oil-containing waste water treating device according to a kind of steel industry of the present invention, it is characterized in that, described scum silica frost treatment system comprises scum silica frost storage tank, tempering tank and centrifugal drier, it is specially, the scum silica frost storage tank is connected the barrel road with adjustment tank, cavitation aerating apparatus, settling tank and is connected with Pressurized flotation, tempering tank then is arranged on the pipeline between scum silica frost storage tank and the centrifugal drier.
Above-mentioned scum silica frost treatment system will contain that the air flotation pool of groove on Sand pump, cavitation aerating apparatus and the Pressurized flotation of sludge pump, adjustment tank of oil sump is scraped slag, mud scraper is sent mud and scum silica frost into the scum silica frost storage tank, in be provided with stirrer in case mud deposits therein, be provided with two table flotation slags at the scum silica frost storage tank and raise and send pump, according to the liquid level automatic start-stop in the scum silica frost storage tank.
Scum silica frost is raised and is sent pump that scum silica frost is delivered in the tempering tank, sends into two centrifugal driers after adding coagulant aids (PHP) stirs and carries out processed, and tempering tank is provided with overflow plate, as it is too large to advance the mud amount, can be back to the scum silica frost storage tank by overflow plate.Scum silica frost after the dehydration is admitted to the scum silica frost hopper that is positioned at the water extracter bottom.
Oil-containing waste water treating device according to a kind of steel industry of the present invention is characterized in that, described medicine system is specially the adjustable volume pump of one-stroke, medicament storage tank and connecting pipeline thereof.
Medicine system, oil-containing wastewater system need altogether to add three kinds of medicaments in treating processes: coagulating agent PAC, coagulant aids PHP, water quality adjusting agent NaOH), three kinds of medicaments add respectively once, secondary and third order reaction flocculation tank.Mainly play the impurity flocculation sediment that makes in the water and the purpose of regulating water quality.The injection device of used medicine is the adjustable volume pump of stroke.Simultaneously NaOH need first through behind the thin up again row add, NaOH add can according to one anti-, two anti-, three anti-in pH value feedback signals control.The keying of PHP and PAC injection pump can send pump chain with raising, namely raises when sending pump startup, and then one anti-, two anti-, three anti-PAC, then simultaneously startings of PHP pumps, stroke can manual regulation.
Oily wastewater treatment method according to a kind of steel industry of the present invention is characterized in that:
Described oily wastewater treatment method is as follows: oily(waste)water at first tentatively stops to adjustment tank, in the retention period, large particle diameter oil droplet floats naturally, by oil skimming belt surperficial oil slick is siphoned away, then, send pump that the oily(waste)water of preliminary treatment is delivered to the first order reaction flocculation tank by raising, in the first order reaction flocculation tank, pass through medicine system dosing coagulant and coagulant aids medicament, and add NaOH according to the pH value of water quality, pass through subsequently cavitation aeration air-floating apparatus, this device passes through aerator, air is pumped in the water by hollow pipeline, form micro-bubble, olesome in water is combined, on float to liquid level, and by slag scraper impurity is got rid of, through behind this procedure, enter again the second order reaction flocculation tank, by medicine system dosing coagulant and coagulant aids medicament, and add NaOH according to the pH value of water quality, enter subsequently settling tank, suspended particulate in the water settles down in settling tank gradually, clear water overflows by the cofferdam, the clear water that overflows enters the third order reaction flocculation tank, by medicine system dosing coagulant and coagulant aids medicament, and adds NaOH according to the pH value of water quality, water outlet enters groove on the Pressurized flotation, again carry out oil removal by air bubbling and process, the upper strata scum silica frost is sent into the scum silica frost treatment system after slag scraper is discharged, and the water after purifying flows into the processing tank, major part is sent to pipe network as regenerated recycle-water, and is back to groove utilization on the Pressurized flotation as pressure air-dissolving water after having a small amount of water to add pressurized air by dissolving.
Use oil-containing waste water treating device and the treatment process thereof of a kind of steel industry of the present invention to obtain following beneficial effect:
1. by the oil-containing waste water treating device of a kind of steel industry of the present invention and the enforcement for the treatment of process thereof, can effectively process all kinds of oily(waste)waters of steel industry, with its deoiling processing, and recycle processing water, have significant effect for saving water resource.
2. the oil-containing waste water treating device of a kind of steel industry of the present invention and disposal methods technique thereof are simple, and technical scheme is advanced, have the effect of energy-conserving and environment-protective.
Description of drawings
Fig. 1 is that the concrete device of the oil-containing waste water treating device of a kind of steel industry of the present invention and treatment process thereof distributes and the schema for the treatment of processes.
Embodiment
Be further described below in conjunction with oil-containing waste water treating device and the treatment process thereof of drawings and Examples to a kind of steel industry of the present invention.
Embodiment
As shown in Figure 1, oily(waste)water is introduced into adjustment tank 1 and carries out natural sedimentation, and surperficial oil slick is sent into floating upper oil supply tank through the oil-collecting collection device; Body refuse then sinks at the bottom of the pond, sends into the scum silica frost storage tank A71 of scum silica frost treatment system A7 through mud-sucking device.
Water outlet is sent the first order reaction flocculation tank that is pumped into oil-containing waste water treating device A A1 by raising, oily(waste)water is by medicine system A8 dosing coagulant PAC in the first order reaction flocculation tank, coagulant aids PHP, water quality adjusting agent NaOH, under stirring, stirrer carries out hybrid reaction, reach first order reaction flocculation tank exit and progressively form thick alumen ustum, under the run by gravity effect, enter cavitation aeration air-floating apparatus A2.In the aeration zone of cavitation aeration air-floating apparatus, in water, squeeze into highdensity micro-bubble by aerator, the foreign material in water are combined, and together float at air supporting zone micro-bubble and foreign material, and by scraping slag equipment it are entered scum silica frost storage tank A71.The water outlet of cavitation aeration air-floating apparatus enters second order reaction flocculation tank A3, oily(waste)water is by medicine system dosing coagulant PAC in the second order reaction flocculation tank, coagulant aids PHP, water quality adjusting agent NaOH, under stirring, stirrer carries out hybrid reaction, reach second order reaction flocculation tank exit and progressively form tiny alumen ustum, under the run by gravity effect, enter along open channel in the central tube of settling tank A4 of oily(waste)water.
The interior oily(waste)water of central tube that enters the settling tank A4 of oily(waste)water carries out the radiation formula precipitation by middle mind-set periphery, sludgd deposition is in the bottom, under the collection mud rake effect of running, scrape to settling tank conical lower portion hole, drain into scum silica frost storage tank A71 by the sludge pump that is arranged in the vault; Supernatant water drops in the annular collecting vat along the peripheral effluent crest of weir, under the run by gravity effect, enter third order reaction flocculation tank A5 through open channel, in the third order reaction flocculation tank, pass through medicine system A8 dosing coagulant PAC, coagulant aids PHP, water quality adjusting agent NaOH, water outlet enters the oily(waste)water of groove A6 on the Pressurized flotation under the bubble that is discharged by dissolving, oil content and particulate adhere to bubble and progressively form and float on the water surface on the scum silica frost in the water, under the slag scraper running, scraped to the scum silica frost storage tank by scraper plate, go out current then to processing tank 2, process the conveying pump force feed to being connected in series the reuse water pipeline, carry out regeneration, and be back to groove utilization on the Pressurized flotation as pressure air-dissolving water after having a small amount of water to add pressurized air by dissolving.And scum silica frost is promoted to tempering tank A72 by the scum silica frost pump in the scum silica frost storage tank, enters centrifuge A73 through adding coagulant aids thick alumen ustum of formation under stirrer stirs, and carries out processed.
The oil-containing waste water treating device of a kind of steel industry steel industry of the present invention and treatment process thereof are particularly useful for processing the oily(waste)water field that steel production industry produces, oily(waste)water for this type is in enormous quantities, composition is unstable, and the source is the characteristics of discontinuity, to with its deoiling processing, and recycle processing water, have significant effect for saving water resource, have the effect of energy-conserving and environment-protective.
Claims (4)
1. the oil-containing waste water treating device of a steel industry comprises with adjustment tank (1) and processing tank (2), it is characterized in that:
Between described adjustment tank (1) and processing tank (2), be provided with a cover oil-containing waste water treating device (A);
Described oil-containing waste water treating device (A) comprises first order reaction flocculation tank (A1), cavitation aeration air-floating apparatus (A2), second order reaction flocculation tank (A3), settling tank (A4), third order reaction flocculation tank (A5), groove on the Pressurized flotation (A6), scum silica frost treatment system (A7) and medicine system (A8), it is specially, pipeline is connected between one end of first order reaction flocculation tank and the adjustment tank (1), the other end then with cavitation aeration air-floating apparatus, the second order reaction flocculation tank, settling tank, the third order reaction flocculation tank is connected in order pipeline connection of groove with Pressurized flotation, groove is connected with processing tank (2) at last again on the Pressurized flotation, the scum silica frost treatment system then in addition respectively with adjustment tank, cavitation aeration air-floating apparatus, settling tank is connected the barrel road and is connected with Pressurized flotation, medicine system then respectively with the first order reaction flocculation tank, the second order reaction flocculation tank is connected with third order reaction flocculation tank pipeline.
2. the oil-containing waste water treating device of a kind of steel industry as claimed in claim 1, it is characterized in that, described scum silica frost treatment system (A7) comprises scum silica frost storage tank (A71), tempering tank (A72) and centrifugal drier (A73), it is specially, the scum silica frost storage tank is connected groove (6) pipeline with adjustment tank (1), cavitation aerating apparatus (A2), settling tank (A4) and is connected with Pressurized flotation, tempering tank then is arranged on the pipeline between scum silica frost storage tank and the centrifugal drier.
3. the oil-containing waste water treating device of a kind of steel industry as claimed in claim 1 is characterized in that, described medicine system (A8) is specially the adjustable volume pump of one-stroke, medicament storage tank and connecting pipeline thereof.
4. the oily wastewater treatment method of a steel industry is characterized in that, described oily wastewater treatment method is as follows:
Oily(waste)water at first arrives the preliminary stop of adjustment tank (1), in the retention period, large particle diameter oil droplet floats naturally, by oil skimming belt surperficial oil slick is siphoned away, then, send pump that the oily(waste)water of preliminary treatment is delivered to first order reaction flocculation tank (A1) by raising, in the first order reaction flocculation tank, pass through medicine system (A8) dosing coagulant and coagulant aids medicament, and add sodium hydroxide according to the pH value of water quality, pass through subsequently cavitation aeration air-floating apparatus (A2), this device passes through aerator, air is pumped in the water by hollow pipeline, form micro-bubble, olesome in water is combined, on float to liquid level, and by slag scraper impurity is got rid of, through behind this procedure, enter again second order reaction flocculation tank (A3), by medicine system dosing coagulant and coagulant aids medicament, and add sodium hydroxide according to the pH value of water quality, enter subsequently settling tank (A4), suspended particulate in the water settles down in settling tank gradually, clear water overflows by the cofferdam, the clear water that overflows enters third order reaction flocculation tank (A5), by medicine system dosing coagulant and coagulant aids medicament, and add sodium hydroxide according to the pH value of water quality, water outlet enters groove on the Pressurized flotation (A6), again carrying out oil removal by air bubbling processes, the upper strata scum silica frost is sent into scum silica frost treatment system (A7) after slag scraper is discharged, and the water after purifying flows into processing tank (2), major part is sent to pipe network as regenerated recycle-water, and is back to groove utilization on the Pressurized flotation as pressure air-dissolving water after having a small amount of water to add pressurized air by dissolving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110298610.0A CN103030229B (en) | 2011-09-30 | 2011-09-30 | Oily wastewater treatment device and treatment method in steel industry |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110298610.0A CN103030229B (en) | 2011-09-30 | 2011-09-30 | Oily wastewater treatment device and treatment method in steel industry |
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| Publication Number | Publication Date |
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| CN103030229A true CN103030229A (en) | 2013-04-10 |
| CN103030229B CN103030229B (en) | 2015-01-21 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106630302A (en) * | 2017-02-09 | 2017-05-10 | 江苏永益环保科技有限公司 | Emulsion treatment equipment |
| CN107324561A (en) * | 2017-08-30 | 2017-11-07 | 丹阳市百盛电器有限公司 | A kind of plasma water treatment device and method for treating water of simple Coal Tar Wastewater |
| CN109365512A (en) * | 2018-10-23 | 2019-02-22 | 河北工业大学 | A kind of technique and device of mobile quickly elution oil-polluted soils |
| CN113754187A (en) * | 2021-09-03 | 2021-12-07 | 石横特钢集团有限公司 | Advanced treatment and recycling process for wastewater of iron and steel enterprises |
-
2011
- 2011-09-30 CN CN201110298610.0A patent/CN103030229B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| 韩国义等: "隔油/气浮/两段生化法处理炼油厂含油废水", 《中国给水排水》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106630302A (en) * | 2017-02-09 | 2017-05-10 | 江苏永益环保科技有限公司 | Emulsion treatment equipment |
| CN107324561A (en) * | 2017-08-30 | 2017-11-07 | 丹阳市百盛电器有限公司 | A kind of plasma water treatment device and method for treating water of simple Coal Tar Wastewater |
| CN109365512A (en) * | 2018-10-23 | 2019-02-22 | 河北工业大学 | A kind of technique and device of mobile quickly elution oil-polluted soils |
| CN109365512B (en) * | 2018-10-23 | 2023-06-23 | 河北工业大学 | Method for mobile rapid elution of petroleum-polluted soil |
| CN113754187A (en) * | 2021-09-03 | 2021-12-07 | 石横特钢集团有限公司 | Advanced treatment and recycling process for wastewater of iron and steel enterprises |
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| Publication number | Publication date |
|---|---|
| CN103030229B (en) | 2015-01-21 |
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