CN103058402A - Oily waste water processing device and method - Google Patents
Oily waste water processing device and method Download PDFInfo
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- CN103058402A CN103058402A CN2012104707050A CN201210470705A CN103058402A CN 103058402 A CN103058402 A CN 103058402A CN 2012104707050 A CN2012104707050 A CN 2012104707050A CN 201210470705 A CN201210470705 A CN 201210470705A CN 103058402 A CN103058402 A CN 103058402A
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Abstract
The invention belongs to the technical field of environmental protection equipment, and particularly relates to an oily waste water processing device and method. The device comprises a raw water box and a clean water box, a rotational flow oil separator, a middle water box and ceramic film equipment, wherein the raw water box is communicated with the rotational flow oil separator through a crude separation pipeline; the rotational flow oil separator is communicated with the middle water box through a middle pipeline, and the middle water box is communicated with the ceramic film equipment through a refined separation pipeline; the ceramic film equipment is communicated with the clean water box through a water producing pipeline, and the ceramic film equipment is communicated with the middle water box through a circulating pipeline; and the rotational flow oil separator is connected with an oil outlet pipeline, and the waste water processing device also comprises a control device. The oil waste water processing device and method provided by the invention have the advantages that the rotational flow oil separator and the ceramic film equipment are combined together, the crude separation and refined separation of the oil waste water are organically combined and repeat cleaning processing is realized, the processing efficiency is high, the effluent quality is good, the structure is compact, the floor space is small, and the oil waste water processing device and method are energy-saving and environment-friendly.
Description
Technical field
The invention belongs to the environmental protection equipment technical field, especially relate to a kind of oil-containing waste water treating device and treatment process thereof.
Background technology
At present; oily(waste)water by discharges such as petrochemical processing industry, solid fuel hot-work industry and food and drink kitchens; to comprising that the ecotopes such as soil, plant, water body and water body biology cause serious harm; oily(waste)water is invaded soil and is caused meeting formation oil film between the soil pores; produce the barrier film effect; cause air, moisture and fertilizer etc. can't infiltrate in the soil spoiled soil structure, the growth that harms the crops and the protection of plant.Oily(waste)water will be to produce oil film at the water surface but contain particularly that oil slick enters behind the water body, and the oxygen that hinders in the atmosphere is dissolved in water body, cause in the water body oxygen content excessively low, so that aquatic organism is in anoxic condition and death; Contain chemical ingredients in the oily(waste)water of simultaneously industrial factory discharging, the repeatedly factor such as fried because of food oil in the restaurant waste oil also can produce carcinogenic substance, these hazardous substances enter water body, not only endanger the aquatic organism growth, also can work the mischief to human body because of people's drinkable water product, oily(waste)water enters the city raceway groove, all can cause detrimentally affect to raceway groove, auxiliary facility and municipal sewage plant etc., so the oil removing measure of oily(waste)water seems most important.
Existing a kind of oil conte, sewage treatment device such as notification number is: a kind of oil-contained waste water treatment device that the Chinese invention patent of CN102701325A provides comprises the dirty pond of storage, film system, tank, outlet system; Wherein store up the import that high-pressure pump is connected to the film system of passing through in dirty pond, connect again tank after the going out of film system; Tank on the one hand directly by high-pressure pump, after the mode of two aspect parallel connections connects tachograph, is connected to outlet system on the other hand; Tank also directly is connected with outlet system by another tachograph in addition.This patent is only carried out filtration, purification by filter membrane, can only carry out single and purify, and it is low to exist purification efficiency, and the relatively poor problem of water quality after purifying.
Summary of the invention
The present invention can only carry out for existing oil conte, sewage treatment device is existing that single purifies, efficient is low, the problem of water quality inferiority, provides a kind of and carries out roughing out and separate the repeatedly purifying treatment that combines, oil-containing waste water treating device and the treatment process thereof that processing efficiency is high, effluent quality is good with essence.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of oil-containing waste water treating device, comprise raw water box and clear water tanks, raw water box is provided with water-in, clear water tanks is provided with water outlet, it also comprises oil-water separator, intermediate water tank and ceramic membrane equipment, raw water box is communicated with oil-water separator by the roughing out pipeline, oil-water separator is communicated with intermediate water tank by intermediate conduit, intermediate water tank is communicated with ceramic membrane equipment by smart separating pipe, ceramic membrane equipment is communicated with clear water tanks by the water producing pipe road, ceramic membrane equipment is communicated with intermediate water tank by circulating line, be connected with flowline on the oil-water separator, this wastewater treatment equipment also comprises control device, and control device is electrically connected with oil-water separator by circuit.Oil-water separator is under certain pressure reduction condition, when the density of two kinds of different liqs is passed through swirler, the centrifugal force that high speed rotating produces in contraction chamber, tail cone, heavier liquid is thrown to the outside, discharge from underflow opening in the shape of a spiral, lighter liquid then forms wick at tail cone center low pressure area, and discharges from overflow port, thereby realizes liquid separation.Ceramic membrane equipment is at the ceramic membrane tube wall micropore that gathers, under pressure, profit in the film pipe or the film flows outside, the penetration by water film, thus oil film drop tunicle is held back the purpose that reaches solid-liquid separation, concentrated and purifying.The raw water box profit flows into oil-water separator, the intermediate water tank profit flows into the water purification inflow clear water tanks after ceramic membrane equipment, the ceramic membrane device processes, and oily(waste)water or water purification all can produce potential energy by difference of altitude, and the mode that automatically flows into realizes.Control device is used for running, and the switching of each pipeline of control oil-water separator, ceramic membrane equipment, guarantees the each several part coordinate operation.In the single treatment, oil-water separator can make in the former oily(waste)water about 90% separating of oil going out, realized the roughing out treating processes, ceramic membrane equipment can make after the roughing out about 20% oily(waste)water purify to be water purification, realized smart separating treatment process, so the present invention combines oil-water separator and ceramic membrane equipment, the roughing out and smart organic unity of separating of oily(waste)water have been realized, it is simple that cyclone separation process has a device structure, cost is low, it is little to take up room, lightweight, maintenance cost is few, energy consumption is low, need not any auxiliary separating medium etc. advantage; Ceramic membrane has good erosion resistance, high thermal resistance, pollution-free easy cleaning, physical strength and reaches greatly the characteristics such as the life-span is long, and oil recovery is relatively easy, and the scope of application is extensive.In addition this treatment unit compact construction, floor space is little, effluent quality good, simultaneously can reclaim waste oil, energy-conserving and environment-protective again.
Above-mentioned technical problem of the present invention is solved by following technical proposals simultaneously: wastewater treatment process is: oily(waste)water injects raw water box through water-in, the waste water of raw water box flows into oil-water separator through the roughing out pipeline, control device control oil-water separator is started working, oil film after oil-water separator is processed is discharged by flowline, oily(waste)water after the processing flows into intermediate water tank through intermediate conduit, waste water in the intermediate water tank flows into ceramic membrane equipment through smart separating pipe, through ceramic membrane equipment filtration, purification, water purification multiparity waterpipe after the filtration flows in the clear water tanks and stores, all the other oily(waste)waters flow into intermediate water tank again through circulating line, continue to carry out essence by ceramic membrane equipment and separate.
As preferably, described intermediate water tank is communicated with raw water box by reflux line, is connected with water pump on the reflux line, and water pump is electrically connected with control device.Oily(waste)water in intermediate water tank and the ceramic membrane equipment is circularly purifying repeatedly, after long-time, the oil concentration of waste water can be increasing in this part pipeline, the decontamination effect improving of ceramic membrane equipment thereupon can be worse and worse, affect effluent quality, so add reflux line and water pump, when this concentration surpasses pre-set concentration threshold value, pump operation on the control device control reflux line, oily(waste)water in the intermediate water tank flows into raw water box through reflux line, continues to carry out roughing out by oil-water separator.
As preferably, all be connected with water pump on roughing out pipeline and the smart separating pipe, water pump is electrically connected with control device.The mode that waste water also can not adopt difference of altitude automatically to flow in this oil-containing waste water treating device flows into postorder storage or purifying part, and the roughing out pipeline be connected separating pipe and connect water pump, the running of control device control water pump, water pump can be with in the oily(waste)water suction postorder parts.
As preferably, described clear water tanks is communicated with ceramic membrane equipment by the back flushing pipeline, is connected with water pump on the back flushing pipeline, and water pump is electrically connected with control device.Ceramic membrane equipment is at the densely covered micropore of ceramic membrane tube wall, behind the long-time purification oily(waste)water, fenestra can be stopped up by oil, pump operation on the controlled back flushing pipeline processed of this timed unit, a part of water purification flows in the ceramic membrane equipment through the back flushing pipeline and washes fenestra in the clear water tanks, makes fenestra unimpeded, and backwash process has reduced the replacing number of times of ceramic membrane, simplify decontamination process, saved cost.
As preferably, described water pump is to have unidirectional and topping-up pump metering function.Topping-up pump carries one-way function and current-limiting function, its unidirectional action, and oily(waste)water flows towards single direction only, can not reflux; Its metering function, but topping-up pump adjusting water outlet quantity are convenient to control the good running of postorder parts.
As preferably, described control device is the PLC controller.The PLC controller is programmable logic controller, it is a kind of electronic system of digital operation operation, adopt a class programmable memory, be used for its internally stored program, the actuating logic computing, sequential control, regularly, the user oriented instructions such as counting and arithmetical operation, and by numeral or analog pattern input or the output various types of machineries of control or production process.
As preferably, when the oil concentration of waste water in the middle water tank exceeds the preset concentration value, pump operation on the control device control reflux line, the oily(waste)water in the intermediate water tank flows into raw water box through reflux line, continues to carry out roughing out by oil-water separator.
As preferably, when the Pore Blocking in the ceramic membrane equipment, the pump operation on the control device control back flushing pipeline, a part of water purification flows in the ceramic membrane equipment through the back flushing pipeline and washes fenestra in the clear water tanks, makes fenestra unimpeded.
Therefore, the invention has the beneficial effects as follows: oil-water separator and ceramic membrane equipment are combined, the roughing out that has realized oily(waste)water and smart organic unity of separating and purifying treatment repeatedly, the processing efficiency height, effluent quality is good and compact construction, little, the energy-conserving and environment-protective of floor space.
Description of drawings
Accompanying drawing 1 is a kind of synoptic diagram for the treatment of scheme of the present invention.
Shown in the figure: 1-raw water box, 2-clear water tanks, 3-oil-water separator, 4-intermediate water tank, 5-ceramic membrane equipment, 6-water pump, g1-roughing out pipeline, g2-intermediate conduit, the smart separating pipe of g3-, g4-water producing pipe road, g5-circulating line, g6-flowline, g7-reflux line, g8-back flushing pipeline.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment:
Shown in Figure of description 1, a kind of oil-containing waste water treating device, comprise raw water box 1 and clear water tanks 2, raw water box 1 is provided with water-in, clear water tanks 2 is provided with water outlet, it also comprises oil-water separator 3, intermediate water tank 4 and ceramic membrane equipment 5, raw water box 1 is communicated with oil-water separator 3 by roughing out pipeline g1, oil-water separator 3 is communicated with intermediate water tank 4 by intermediate conduit g2, intermediate water tank 4 is communicated with ceramic membrane equipment 5 by smart separating pipe g3, ceramic membrane equipment 5 is communicated with clear water tanks 2 by water producing pipe road g4, ceramic membrane equipment 5 is communicated with intermediate water tank 4 by circulating line g5, intermediate water tank 4 is communicated with raw water box 1 by reflux line g7, clear water tanks 2 is communicated with ceramic membrane equipment 5 by smart separating pipe g3, be connected with flowline g6 on the oil-water separator 3, roughing out pipeline g1, smart separating pipe g3, all be connected with water pump 6 on reflux line g7 and the back flushing pipeline g8, all water pumps 6 are to have unidirectional and topping-up pump metering function, this wastewater treatment equipment also comprises control device, control device is the PLC controller, control device is electrically connected with oil-water separator 3 and each water pump 6 by circuit, used ceramic membrane is inorganic ceramic film in the ceramic membrane equipment 5, the scope of pore size of inorganic ceramic membrane size is 10nm～500nm, and the aperture of choosing ceramic membrane here is that 200nm is as preferred version.
A kind of oily wastewater treatment method, its process is: oily(waste)water injects raw water box 1 through water-in, the waste water of raw water box 1 flows into oil-water separator 3 through roughing out pipeline g1, control device control oil-water separator 3 is started working, oil film after oil-water separator 3 is processed is discharged by flowline g6, oily(waste)water after the processing flows into intermediate water tank 4 through intermediate conduit g2, waste water in the intermediate water tank 4 flows into ceramic membrane equipment 5 through smart separating pipe g3, through ceramic membrane equipment 5 filtration, purifications, water purification multiparity waterpipe g4 after the filtration flows in the clear water tanks 2 and stores, all the other oily(waste)waters flow into intermediate water tank 4 again through circulating line g5, continue to carry out essence by ceramic membrane equipment 5 and separate.When the oil concentration of waste water in the middle water tank 4 exceeds the preset concentration value, water pump 6 runnings on the control device control reflux line g7, oily(waste)water in the intermediate water tank 4 flows into raw water box 1 through reflux line g7, continues to carry out roughing out by oil-water separator 3; When the Pore Blocking in the ceramic membrane equipment 5, water pump 6 runnings on the control device control back flushing pipeline g8, a part of water purification flows in the ceramic membrane equipment 5 through back flushing pipeline g8 and washes fenestra in the clear water tanks 2, makes fenestra unimpeded.
Oil-water separator can make in the former oily(waste)water about 90% separating of oil going out, realized the roughing out treating processes, ceramic membrane equipment can make after the roughing out about 20% oily(waste)water purify to be water purification, realized smart separating treatment process, so the present invention combines oil-water separator and ceramic membrane equipment, the roughing out and smart organic unity of separating of oily(waste)water have been realized, cyclone separation process has that device structure is simple, cost is low, it is little, lightweight to take up room, maintenance cost is few, energy consumption is low, need not any auxiliary separating medium etc. advantage; Ceramic membrane has good erosion resistance, high thermal resistance, pollution-free easy cleaning, physical strength and reaches greatly the characteristics such as the life-span is long, and oil recovery is relatively easy, and the scope of application is extensive.In addition this treatment unit compact construction, floor space is little, effluent quality good, simultaneously can reclaim waste oil, energy-conserving and environment-protective again.
Should be understood that this embodiment only to be used for explanation the present invention and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (9)
1. oil-containing waste water treating device, comprise raw water box (1) and clear water tanks (2), raw water box (1) is provided with water-in, clear water tanks (2) is provided with water outlet, it is characterized in that, it also comprises oil-water separator (3), intermediate water tank (4) and ceramic membrane equipment (5), raw water box (1) is communicated with oil-water separator (3) by roughing out pipeline (g1), oil-water separator (3) is communicated with intermediate water tank (4) by intermediate conduit (g2), intermediate water tank (4) is communicated with ceramic membrane equipment (5) by smart separating pipe (g3), ceramic membrane equipment (5) is communicated with clear water tanks (2) by water producing pipe road (g4), ceramic membrane equipment (5) is communicated with intermediate water tank (4) by circulating line (g5), be connected with flowline (g6) on the oil-water separator (3), this wastewater treatment equipment also comprises control device, and control device is electrically connected with oil-water separator (3) by circuit.
2. a kind of oil-containing waste water treating device according to claim 1, it is characterized in that, described intermediate water tank (4) is communicated with raw water box (1) by reflux line (g7), is connected with water pump (6) on the reflux line (g7), and water pump (6) is electrically connected with control device.
3. a kind of oil-containing waste water treating device according to claim 1 is characterized in that, all is connected with water pump (6) on described roughing out pipeline (g1) and the smart separating pipe (g3), and water pump (6) is electrically connected with control device.
4. a kind of oil-containing waste water treating device according to claim 1, it is characterized in that, described clear water tanks (2) is communicated with ceramic membrane equipment (5) by back flushing pipeline (g8), is connected with water pump (6) on the back flushing pipeline (g8), and water pump (6) is electrically connected with control device.
5. according to claim 1 and 2 or 3 or 4 described a kind of oil-containing waste water treating devices, it is characterized in that described water pump (6) is for having unidirectional and topping-up pump metering function.
6. a kind of oil-containing waste water treating device according to claim 1 is characterized in that, described control device is the PLC controller.
7. oily wastewater treatment method, it is characterized in that, wastewater treatment process is: oily(waste)water injects raw water box (1) through water-in, the waste water of raw water box (1) flows into oil-water separator (3) through roughing out pipeline (g1), control device control oil-water separator (3) is started working, oil film after oil-water separator (3) is processed is discharged by flowline (g6), oily(waste)water after the processing flows into intermediate water tank (4) through intermediate conduit (g2), waste water in the intermediate water tank (4) flows into ceramic membrane equipment (5) through smart separating pipe (g3), through ceramic membrane equipment (5) filtration, purification, water purification multiparity waterpipe (g4) after the filtration flows in the clear water tanks (2) and stores, all the other oily(waste)waters flow into intermediate water tank (4) again through circulating line (g5), continue to carry out essence by ceramic membrane equipment (5) and separate.
8. a kind of oily wastewater treatment method according to claim 7, it is characterized in that, when the oil concentration of waste water in the middle water tank (4) exceeds the preset concentration value, water pump (6) running on the control device control reflux line (g7), oily(waste)water in the intermediate water tank (4) flows into raw water box (1) through reflux line (g7), continues to carry out roughing out by oil-water separator (3).
9. according to claim 7 or 8 described a kind of oily wastewater treatment methods, it is characterized in that, when the Pore Blocking in the ceramic membrane equipment (5), water pump (6) running on the control device control back flushing pipeline (g8), a part of water purification flows into flushing fenestra in the ceramic membrane equipment (5) through back flushing pipeline (g8) in the clear water tanks (2), makes fenestra unimpeded.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104707050A CN103058402A (en) | 2012-11-19 | 2012-11-19 | Oily waste water processing device and method |
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| CN2012104707050A CN103058402A (en) | 2012-11-19 | 2012-11-19 | Oily waste water processing device and method |
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| CN103058402A true CN103058402A (en) | 2013-04-24 |
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| CN2012104707050A Pending CN103058402A (en) | 2012-11-19 | 2012-11-19 | Oily waste water processing device and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104496057A (en) * | 2014-12-26 | 2015-04-08 | 合肥创想能源环境科技有限公司 | Cleaning device system for tableware in catering industry |
| CN105130038A (en) * | 2015-09-21 | 2015-12-09 | 厦门江天智能仿生科技有限公司 | Integrated oil-water separation device and method |
| CN105664586A (en) * | 2016-03-09 | 2016-06-15 | 东莞安默琳机械制造技术有限公司 | Waste engine oil recycling purification system |
| CN107140778A (en) * | 2017-06-30 | 2017-09-08 | 江苏彬鹏环保有限公司 | A kind of oiliness sewage treatment equipment |
| CN108203172A (en) * | 2018-03-15 | 2018-06-26 | 浙江渠清环境科技有限公司 | A kind of sewage-treatment plant |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104496057A (en) * | 2014-12-26 | 2015-04-08 | 合肥创想能源环境科技有限公司 | Cleaning device system for tableware in catering industry |
| CN105130038A (en) * | 2015-09-21 | 2015-12-09 | 厦门江天智能仿生科技有限公司 | Integrated oil-water separation device and method |
| CN105664586A (en) * | 2016-03-09 | 2016-06-15 | 东莞安默琳机械制造技术有限公司 | Waste engine oil recycling purification system |
| CN107140778A (en) * | 2017-06-30 | 2017-09-08 | 江苏彬鹏环保有限公司 | A kind of oiliness sewage treatment equipment |
| CN108203172A (en) * | 2018-03-15 | 2018-06-26 | 浙江渠清环境科技有限公司 | A kind of sewage-treatment plant |
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Application publication date: 20130424 |