CN107399864A - A kind of height total system containing salt oil-containing wastewater and technique - Google Patents

A kind of height total system containing salt oil-containing wastewater and technique Download PDF

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Publication number
CN107399864A
CN107399864A CN201710705658.6A CN201710705658A CN107399864A CN 107399864 A CN107399864 A CN 107399864A CN 201710705658 A CN201710705658 A CN 201710705658A CN 107399864 A CN107399864 A CN 107399864A
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CN
China
Prior art keywords
filtrate
containing wastewater
oil
membrane
salt oil
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Pending
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CN201710705658.6A
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Chinese (zh)
Inventor
陈琳
王成燚
胡勤政
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Hohai University HHU
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Hohai University HHU
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Priority to CN201710705658.6A priority Critical patent/CN107399864A/en
Publication of CN107399864A publication Critical patent/CN107399864A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • C02F1/4691Capacitive deionisation

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention discloses a kind of high total system containing salt oil-containing wastewater and technique, wherein processing system, which includes sand filtering device, ultrafiltration apparatus and membrane capacitance deionizer, handling process, includes:Height is handled containing salt oil-containing wastewater by sand filtering device, removing can oil slick, oil emulsion and suspension in waste water;Waste water by ultrafiltration apparatus, further removes oils and suspension in waste water again;Last waste water enters membrane capacitance deionization system, carries out desalting processing;The present invention carries out sand filtration processing as filtrate using natural siliceous sand to raw water, can remove part oils and suspension in water body;Using hyperfiltration treatment, almost all of oils and suspension in water body can be removed, effectively controls existing membrane pollution problem during follow-up desalting processing;The present invention takes membrane capacitance deionization technology effectively to remove salt, energy consumption is low as last desalting processing technique.

Description

A kind of height total system containing salt oil-containing wastewater and technique
Technical field
The invention belongs to technical field of sewage, more particularly to a kind of high total system containing salt oil-containing wastewater and work Skill.
Background technology
Oily waste water is a kind of to have a large capacity and a wide range and endanger serious waste water.The oil plant that its main source has petroleum industry produces Raw oily waste water;Caused cooling-lubricant and emulsifiable oil waste water in machinery manufacturing industry;Textile industry, food processing industry, food and drink Industry etc. can also discharge substantial amounts of oily waste water.Salt comparision contents are high in usual this kind of oily waste water, complicated component, without processing Directly discharge can cause serious environmental pollution.
This high saliferous oiliness sewage treatment gets up relatively difficult, and the processing for oily waste water, based on oil is in water The difference of existence form, generally there are filtration method, Bubble-floating Method, absorption method and membrane separation process etc..For the high waste water of salt content, lead to Often counter-infiltration, electrodialysis, membrane capacitance method etc. is taken to handle, but oily substance present in these brine wastes, to film Seriously polluted, easy cleaning, operating cost be not higher, it is therefore desirable to further develop function admirable, the preferable technique for the treatment of effeciency, Contain salt oil-containing wastewater to handle this kind of height, reduce cost.
The content of the invention
The present invention provides a kind of high total system containing salt oil-containing wastewater and technique, to solve in the prior art for height Problem present in saliferous oiliness sewage treatment.
To achieve the above object, the technical solution adopted by the present invention is:
A kind of height total system containing salt oil-containing wastewater, including sand filtering device, ultrafiltration apparatus and membrane capacitance deionizer, institute State that sand filtering device is provided with water inlet 14 including top, bottom is provided with filtrate (liquid 15, its internal sand filtration for being filled with filtrate 1 Device 13, the top down of sand filter 13 are provided with the elevating mechanism 2 moved up and down in sand filter 13 from above filtrate 1, The sand filter 13 is bottom up to be provided with the rabbling mechanism 4 being stirred to filtrate 1;The ultrafiltration apparatus includes passing through pipeline The polysulfone hollow fiber ultrafiltration membrane system 5 and header tank 6 of 16 connections;The membrane capacitance deionizer includes what is connected by pipeline 16 Membrane capacitance component 8 and water outlet fluid reservoir 10, the membrane capacitance component 8 connect dc source 7, and the connection of water outlet fluid reservoir 10 is set Be equipped with the electric conductivity detector 11 of controller 12, the electric conductivity detector 11 record in real time water outlet conductivity change and transmit to Controller 12;The filtrate (liquid 15 of the sand filter 13 connects polysulfone hollow fiber ultrafiltration membrane system 5, the header tank by pipeline 16 6 pass through the junctional membrane capacitance component 8 of pipeline 16.
Further, the bottom of elevating mechanism 2 is provided with platen 3, and the bottom surface of the platen 3 props up the upper table of filtrate 1 Face.
Further, the top of elevating mechanism 2 and the bottom of rabbling mechanism 4 are connected to respective drive device 17。
Further, the pipeline 16 between the polysulfone hollow fiber ultrafiltration membrane system 5 and header tank 6 is provided with water valve 18.
Further, the current in the polysulfone hollow fiber ultrafiltration membrane system 5 flow from bottom to top, i.e. the filtrate of sand filter 13 Outlet 15 connects the bottom of polysulfone hollow fiber ultrafiltration membrane system 5 by pipeline 16, and the top of polysulfone hollow fiber ultrafiltration membrane system 5 passes through pipe Road 16 connects header tank 6.
Further, it is provided with water pump 9 on the pipeline 16 between the header tank 6 and membrane capacitance component 8.
Further, the filtrate 1 used in the sand filter is natural quartz sand filtering material.
Further, the particle diameter of the natural quartz sand filtering material is 0.5-1.2mm.
Further, the internal diameter of the doughnut in the polysulfone hollow fiber ultrafiltration membrane system 5 is 1mm.
A kind of height comprehensive processing technique containing salt oil-containing wastewater, comprises the following steps:
S1, height handled containing salt oil-containing wastewater by sand filtering device, can oil slick, oil emulsion and suspension in removal waste water;
S2, the waste water after step S1 processing further remove oils and suspension in waste water by ultrafiltration apparatus;
S3, the waste water after step S2 processing finally enter membrane capacitance deionization system, carry out desalting processing.
Compared with prior art, the invention has the advantages that:
1st, the present invention carries out sand filtration processing as filtrate using natural siliceous sand to raw water, can remove in water body part oils with Suspension;Using hyperfiltration treatment, almost all of oils and suspension in water body can be removed, effectively controls follow-up desalting processing During existing membrane pollution problem.
2 present invention take membrane capacitance deionization technology effectively to remove salt, energy as last desalting processing technique Consume low.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Wherein:1- filtrates, 2- elevating mechanisms, 3- platens, 4- rabbling mechanisms, 5- polysulfone hollow fiber ultrafiltration membrane systems, 6- header tanks, 7- Dc source, 8- membrane capacitance components, 9- water pumps, 10- water outlet fluid reservoirs, 11- electric conductivity detectors, 12- controllers, 13- sand filtrations Device, 14- water inlets, 15- filtrate (liquids, 16- pipelines, 17- drive devices, 18- water valves.
Embodiment
The present invention is further described with reference to embodiment.
As shown in figure 1, a kind of height total system containing salt oil-containing wastewater, including sand filtering device, ultrafiltration apparatus and film electricity Hold deionizer, the sand filtering device is provided with water inlet 14 including top, bottom is provided with filtrate (liquid 15, fills out inside it Sand filter 13 filled with filtrate 1, the top down of sand filter 13, which is provided with sand filter 13 from above filtrate 1, does lifting fortune Dynamic elevating mechanism 2, the sand filter 13 is bottom up to be provided with the rabbling mechanism 4 being stirred to filtrate 1;The ultrafiltration dress Put polysulfone hollow fiber ultrafiltration membrane system 5 and header tank 6 including being connected by pipeline 16;The membrane capacitance deionizer includes logical The membrane capacitance component 8 and water outlet fluid reservoir 10 that piping 16 connects, the membrane capacitance component 8 connect dc source 7, the water outlet Fluid reservoir 10 is connected with the electric conductivity detector 11 of controller 12, and the electric conductivity detector 11 records water outlet conductance in real time Rate changes and transmitted to controller 12;The filtrate (liquid 15 of the sand filter 13 connects hollow fiber ultrafiltration membrane group by pipeline 16 Part 5, the header tank 6 pass through the junctional membrane capacitance component 8 of pipeline 16.
The bottom of elevating mechanism 2 is provided with platen 3, and the bottom surface of the platen 3 props up the upper surface of filtrate 1, the liter The top of descending mechanism 2 and the bottom of rabbling mechanism 4 are connected to respective drive device 17.
Pipeline 16 between the polysulfone hollow fiber ultrafiltration membrane system 5 and header tank 6 is provided with water valve 18, the doughnut Current in hyperfiltration membrane assembly 5 flow from bottom to top, i.e., the filtrate (liquid 15 of sand filter 13 connects doughnut by pipeline 16 The bottom of hyperfiltration membrane assembly 5, the top of polysulfone hollow fiber ultrafiltration membrane system 5 connect header tank 6, the header tank 6 by pipeline 16 It is provided with water pump 9 on pipeline 16 between membrane capacitance component 8, the doughnut in the polysulfone hollow fiber ultrafiltration membrane system 5 Internal diameter is 1mm.
The filtrate 1 used in the sand filter is natural quartz sand filtering material, and the particle diameter of the natural quartz sand filtering material is 0.5-1.2mm。
Embodiment 1
Simulation is high to contain oil content 20mg/L, salt content 1g/L, COD 350mg/L in salt oil-containing wastewater
A kind of height comprehensive processing technique containing salt oil-containing wastewater, comprises the following steps:
Height (oil content 20mg/L, salt content 1g/L, COD 350mg/L) containing salt oil-containing wastewater is simulated, is carried out into sand filtering device Filtration treatment, remove waste water in can oil slick, oil emulsion and suspension, water quality oil content is about 3.8mg/L, COD contents 92mg/ L, water after preliminary treatment enter hyperfiltration membrane assembly by pipeline and carry out hyperfiltration treatment, nearly all oils in the water body after processing And suspension is removed, oil content is down to 0.5mg/L, and COD contents are down to 21mg/L;Water after processing is entered by pipeline to catchment Case enters membrane capacitance component for follow-up desalting processing, water body by pipeline, and dc source provides burning voltage 1.2V, water body electricity Conductivity value is 3910 μ S/cm;Water after desalination enters water outlet fluid reservoir, and electrical conductivity is finally down to 1200 μ S/cm, and salt rejection rate is 64.5%;After 55min desalting processing, reversal connection is carried out.After carrying out the desalting processing of 12 days, membrane capacitance deionizer Running status is relatively stable, salt rejection rate 52.3%, remains in that higher desalting efficiency, illustrates that sand filtration and hyperfiltration treatment have Effect controls the formation of fouling membrane.
Embodiment 1 shows that a kind of high total system containing salt oil-containing wastewater provided by the invention and technique can be effective Processing height contains salt oil-containing wastewater, has good treatment effect.
Comparative example
Contrasted using the technical scheme of following technical scheme and the embodiment of the present invention 1, the high (oil content containing salt oil-containing wastewater 20mg/L, salt content 1g/L, COD 350mg/L) enter potassium permanganate composites progress chemical tendering and flocculating setting, remove big portion Point suspension, oil content 17.23mg/L, COD180mg/L in the water quality after processing;Water after processing enters immersion ultrafiltration pond, Oils, organic matter and colloidal impurity are further removed, oil content is down to 9.25mg/L, COD42mg/L;Finally carry out separation concentration (counter-infiltration) desalting processing, desalting efficiency 42%.
A kind of high total system containing salt oil-containing wastewater provided by the invention is can be seen that from embodiment 1 and comparative example And technique can effectively handle height and contain salt oil-containing wastewater, by prolonged operation, this technique still has good treatment effect, And holistic cost is relatively low, system and arranging is simple.The technique can effectively remove oils and salt in waste water, and equipment is simple, Cost is relatively low, the waste water after sand filtration is handled, and can effectively slow down the fouling membrane that follow-up film process occurs, and extends the use of film Life-span.
Described above is only the preferred embodiment of the present invention, it should be pointed out that:For the ordinary skill people of the art For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims (10)

  1. A kind of 1. height total system containing salt oil-containing wastewater, it is characterised in that:Including sand filtering device, ultrafiltration apparatus and membrane capacitance Deionizer, the sand filtering device are provided with water inlet including top(14), bottom be provided with filtrate (liquid(15), inside it Filled with filtrate(1)Sand filter(13), the sand filter(13)Top down is provided with sand filter(13)It is interior from filtrate(1) The elevating mechanism that top moves up and down(2), the sand filter(13)It is bottom up to be provided with to filtrate(1)What is be stirred stirs Mix mechanism(4);The ultrafiltration apparatus includes passing through pipeline(16)The polysulfone hollow fiber ultrafiltration membrane system of connection(5)And header tank(6); The membrane capacitance deionizer includes passing through pipeline(16)The membrane capacitance component of connection(8)With water outlet fluid reservoir(10), it is described Membrane capacitance component(8)Connect dc source(7), the water outlet fluid reservoir(10)It is connected with controller(12)Electrical conductivity inspection Survey instrument(11), the electric conductivity detector(11)Record water outlet conductivity changes and transmitted to controller in real time(12);The sand Filter(13)Filtrate (liquid(15)Pass through pipeline(16)Connect polysulfone hollow fiber ultrafiltration membrane system(5), the header tank(6)Pass through Pipeline(16)Junctional membrane capacitance component(8).
  2. 2. height total system containing salt oil-containing wastewater according to claim 1, it is characterised in that:The elevating mechanism (2)Bottom is provided with platen(3), the platen(3)Bottom surface prop up filtrate(1)Upper surface.
  3. 3. height total system containing salt oil-containing wastewater according to claim 1, it is characterised in that:The elevating mechanism (2)Top and rabbling mechanism(4)Bottom be connected to respective drive device(17).
  4. 4. height total system containing salt oil-containing wastewater according to claim 1, it is characterised in that:The doughnut surpasses Filter membrane component(5)And header tank(6)Between pipeline(16)It is provided with water valve(18).
  5. 5. height total system containing salt oil-containing wastewater according to claim 1, it is characterised in that:The doughnut surpasses Filter membrane component(5)Interior current flow from bottom to top, i.e. sand filter(13)Filtrate (liquid(15)Pass through pipeline(16)In connection Fibre ultrafiltration membrane module(5)Bottom, polysulfone hollow fiber ultrafiltration membrane system(5)Top pass through pipeline(16)Connect header tank (6).
  6. 6. height total system containing salt oil-containing wastewater according to claim 1, it is characterised in that:The header tank(6) With membrane capacitance component(8)Between pipeline(16)On be provided with water pump(9).
  7. 7. height total system containing salt oil-containing wastewater according to claim 1, it is characterised in that:Adopted in the sand filter Filtrate(1)It is natural quartz sand filtering material.
  8. 8. height total system containing salt oil-containing wastewater according to claim 7, it is characterised in that:The natural siliceous sand The particle diameter of filtrate is 0.5-1.2mm.
  9. 9. height total system containing salt oil-containing wastewater according to claim 1, it is characterised in that:The doughnut surpasses Filter membrane component(5)The internal diameter of interior doughnut is 1mm.
  10. 10. a kind of handling process according to any described high total systems containing salt oil-containing wastewater of claim 1-9, it is special Sign is, comprises the following steps:
    S1, height handled containing salt oil-containing wastewater by sand filtering device, can oil slick, oil emulsion and suspension in removal waste water;
    S2, the waste water after step S1 processing further remove oils and suspension in waste water by ultrafiltration apparatus;
    S3, the waste water after step S2 processing finally enter membrane capacitance deionization system, carry out desalting processing.
CN201710705658.6A 2017-08-17 2017-08-17 A kind of height total system containing salt oil-containing wastewater and technique Pending CN107399864A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710705658.6A CN107399864A (en) 2017-08-17 2017-08-17 A kind of height total system containing salt oil-containing wastewater and technique

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Application Number Priority Date Filing Date Title
CN201710705658.6A CN107399864A (en) 2017-08-17 2017-08-17 A kind of height total system containing salt oil-containing wastewater and technique

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CN107399864A true CN107399864A (en) 2017-11-28

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110240337A (en) * 2019-05-06 2019-09-17 苏州久沛环保科技有限公司 A kind of high saliferous oiliness sewage treatment equipment and waste water treatment process
CN111039433A (en) * 2019-12-13 2020-04-21 浙江天地环保科技有限公司 System and method for treating ship tail gas desulfurization washing wastewater

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CN101219836A (en) * 2007-01-12 2008-07-16 北京世博恒业科技有限公司 System and technique for processing oily wastewater with high saline salinity
CN203976529U (en) * 2014-06-03 2014-12-03 世纪华扬环境工程有限公司 oil field produced water zero discharge pre-concentration device
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CN106865837A (en) * 2017-03-01 2017-06-20 河海大学 A kind of method of utilization milipore filter and membrane capacitance deionization group technology treatment brackish-water lake storehouse water

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CN101219836A (en) * 2007-01-12 2008-07-16 北京世博恒业科技有限公司 System and technique for processing oily wastewater with high saline salinity
US8952199B2 (en) * 2007-07-24 2015-02-10 Dow Global Technologies Llc Methods of and formulations for reducing and inhibiting the growth of the concentration of microbes in water-based fluids and systems used with them
CN203976529U (en) * 2014-06-03 2014-12-03 世纪华扬环境工程有限公司 oil field produced water zero discharge pre-concentration device
CN106865837A (en) * 2017-03-01 2017-06-20 河海大学 A kind of method of utilization milipore filter and membrane capacitance deionization group technology treatment brackish-water lake storehouse water

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110240337A (en) * 2019-05-06 2019-09-17 苏州久沛环保科技有限公司 A kind of high saliferous oiliness sewage treatment equipment and waste water treatment process
CN111039433A (en) * 2019-12-13 2020-04-21 浙江天地环保科技有限公司 System and method for treating ship tail gas desulfurization washing wastewater

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Application publication date: 20171128