CN105621813A - System for purifying and treating petrochemical engineering waste water by means of hydrophilic and oleophobic membrane - Google Patents

System for purifying and treating petrochemical engineering waste water by means of hydrophilic and oleophobic membrane Download PDF

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CN105621813A
CN105621813A CN201610124434.1A CN201610124434A CN105621813A CN 105621813 A CN105621813 A CN 105621813A CN 201610124434 A CN201610124434 A CN 201610124434A CN 105621813 A CN105621813 A CN 105621813A
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pond
water
oil
hydrophilic
compositional liquor
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CN105621813B (en
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朱玉兵
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Jiangsu Xiangfushun Metal Products Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0079—Manufacture of membranes comprising organic and inorganic components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/02—Inorganic material
    • B01D71/04—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/36—Hydrophilic membranes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
    • C02F2103/365—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds from petrochemical industry (e.g. refineries)
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
    • C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Water Treatment By Sorption (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

The invention relates to a system for purifying and treating petrochemical engineering waste water by means of a hydrophilic and oleophobic membrane. Ion adsorption ponds are provided with feed inlets or feed mechanisms used for putting magnetic biological adsorbent for adsorbing lead ions. The bottom of each ion adsorption pond is provided with an air blowing opening, a partition screen is arranged on each air blowing opening, the multiple ion adsorption ponds are arranged in parallel, and filtering devices are arranged between the ion adsorption ponds and an oil-water separation pond. By means of the system, lead ions in lead-containing waste oil water can be completely removed, oily components and aqueous components can be reliably separated, the oily components are caught and reused, cost of subsequent biochemical treatment is reduced, the period of subsequent biochemical treatment is shortened, and efficient treatment of the waste water is achieved.

Description

Utilize hydrophilic oleophobic membrane that petrochemical wastewater is carried out the system of purifying treatment
The present invention is the applying date is on December 10th, 2014, and application number is 201410758357.6, and denomination of invention is point case application of the patent of invention of " the efficient treatment system of a kind of petrochemical wastewater ".
Technical field
The present invention relates to sewage treatment area, it is specifically related to a kind of utilize hydrophilic oleophobic membrane that petrochemical wastewater is carried out the system of purifying treatment.
Background technology
Petroleum chemical industry can produce a large amount of oily(waste)waters, meanwhile, due to the singularity of petroleum chemical industry, also containing lead ion in usual sewage. At present, also having the document numerous method for the treatment of oily(waste)water of report and system, but lead ion, oily components cannot be processed by mostly simultaneously, often most lead ion is deposited in the precipitating sludge in follow-up biochemistry pool, being formed containing plumbous mud, it is more difficult to process.
Summary of the invention
It is an object of the invention to provide and a kind of utilize hydrophilic oleophobic membrane that petrochemical wastewater is carried out the system of purifying treatment, the oily components in oily(waste)water can be reclaimed by it, is processed by the lead ion in sewage simultaneously.
For achieving the above object, present invention employs following technical scheme:
A kind of utilize hydrophilic oleophobic membrane that petrochemical wastewater is carried out the system of purifying treatment, comprise and arranging successively, the front latter linked rough filtering device that waste oil water is carried out coarse filtration, carry out waste oil water neutralizing the equalizing tank regulated, ion precipitation pond/ionic adsorption pond that lead ion in waste oil water is separated, to the oil-water separation tank that the oily components in waste oil water is separated, sewage after separation is carried out the aeration tank of biochemical treatment and the sewage after biochemical treatment carries out the sand filtering device of sand filtration, the liquid outlet of oil-water separation tank arranges hydrophilic thin oil filtration unit, oil-water separation tank is connected with oily components retrieving arrangement. the oily components that recovery fished for by oily components retrieving arrangement can recycle.
Detailed scheme is: be provided with the dog-house of the magnetic biological adsorption agent for adding adsorpting lead ion/add mechanism on ionic adsorption pond, air-blowing mouth is set at the bottom of the pond in ionic adsorption pond, air-blowing mouth place arranges filter, ionic adsorption pond is set side by side with multiple, is provided with filtration unit between ionic adsorption pond and oil-water separation tank. Ion precipitation pond is provided with the dog-house for adding flocculation agent/add mechanism on being, the tracheae that vertical shape is arranged it is provided with in ion precipitation pond, the tube wall of tracheae evenly arranges pore, gas port place arranges filter, being provided with precipitate and separate pond between ion precipitation pond and oil-water separation tank, precipitate and separate pond is set up in parallel multiple. Flocculation agent can be the one in polyacrylamide, sodium polyacrylate or its mixture. The object arranging multiple ionic adsorption pond or precipitate and separate pond mainly ensures the continuity of sewage disposal, avoid because of single pond body carry out precipitation process time, other equipment of whole Sewage treatment systems are just out of service, it is to increase the continuity of whole system cloud gray model and efficiency. Meanwhile, aeration tank is also set up in parallel multiple.
Hydrophilic thin oil filtration unit comprises hydrophilic oleophobic membrane, and hydrophilic oleophobic membrane is obtained by following operation: first with dipping by lye, 600 object stainless (steel) wires are cleaned 20min, then with organic solvent ultrasonic cleaning 20min, is dried by stainless (steel) wire after ultrasonic cleaning; Subsequently stainless (steel) wire is placed in the first compositional liquor flood 54h, dipping terminate after with washed with de-ionized water and naturally dry; Finally flood 20h by woven wire the 2nd compositional liquor, also naturally dry by washed with de-ionized water after taking-up, organic solvent is that ethanol and acetone obtain according to the volume ratio preparation of 1.5:1, first compositional liquor is that Tutofusin tris, dopamine hydrochloride and hydrochloric acid soln preparation obtain, and in the first compositional liquor, Tutofusin tris content is 8.2g/L, dopamine hydrochloride content is 5.6g/L, PH=8.5; 2nd compositional liquor be Thiovanic acid, sulphur for succsinic acid, sodium hydroxide preparation obtain, in the 2nd compositional liquor, Thiovanic acid content is 2.48g/L, sulphur is 3.8g/L, PH=12.5 for succinic acid content.
Above-mentioned obtained hydrophilic oleophobic membrane, by detection, the contact angle of itself and water droplet is 0 ��, the contact angle dripped with oil is 142 ��, and when oil-water mixture filters through it, oily components can by effectively catching, water phase components then can pass through smoothly, therefore, it is possible to is separated fast by profit. Simultaneously, whether the lead ion in sewage also can be eliminated by above-mentioned hydrophilic oleophobic membrane is detected, eliminate if lead ion does not adsorb, then lead ion can close reaction with the active group generation huge legendary turtle on hydrophilic oleophobic membrane, along with the continuous absorption of lead ion, the wetting ability of hydrophilic oleophobic membrane reduces gradually, lipophilicity strengthens gradually, finally becomes oleophilic drainage film, and hydrophilic oleophobic membrane just cannot play the effect that profit is effectively separated in the process. And for petroleum chemical plant, the plumbum ion concentration in its waste water discharged is unstable, when plumbum ion concentration changes greatly, often the dosage of sorbent material or precipitation agent will be very few, now just cannot be eliminated by lead ion. Therefore, in the present invention, by oil-water separation tank effluent stream to being divided into mutually isolated A section pond and B section pond, B section pond is divided into mutually isolated B1 pond and B2 pond, first and second liquid outlet for being connected with B2 pond with B1 pond is offered in A section pond respectively, and first and second liquid outlet place arranges hydrophilic thin oil filtration unit respectively. Only a pond in B section pond is connected with A section pond in use, and does not use the hydrophilic thin oil filtration unit on liquid outlet to isolate with the pond liquid phase in A section pond on A section pond. When lead ion does not eliminate, the hydrophilic oleophobic membrane contacted with the pond liquid phase in A section pond makes hydrophilic oleophobic property change because of adsorpting lead ion, profit effectively cannot be separated, now part oily components will enter in the B section pond of use, therefore detect there is oily components in B section pond time, the system of front and continued is checked and/or is strengthened the consumption of flocculation agent, sorbent material so that lead ion eliminate completely. When after above-mentioned measure Results, then enable another B section pond, meanwhile the B section pond polluted by oily components is cleared up and the hydrophilic thin oil filtration unit of sex change is changed, use in order to next time. So that oily components, water phase components in profit can be separated completely, lead ion can be removed completely, ensure the reliable treatments containing plumbous waste oil water.
Rough filtering device, equalizing tank, aeration tank, sand filtering device, filtration unit, precipitate and separate pond, oily components retrieving arrangement all can refer to have been existed the equipment with identical function and has implemented in existing Sewage treatment systems.
The efficient treatment system of above-mentioned petrochemical wastewater provided by the invention, it can be removed completely to containing lead ion in plumbous waste oil water, and oily components is separated reliably with aqueous components, oily components is fished for reuse, and reduce cost and the cycle of follow-up biochemical treatment, it is achieved the efficient process of waste water.
Accompanying drawing explanation
Fig. 1 is the first schematic diagram implementing mode of Waste Water Treatment;
Fig. 2 is the schematic diagram that Waste Water Treatment the 2nd kind implements mode;
Fig. 3 is the structural representation of oil-water separation tank.
Embodiment
In order to make objects and advantages of the present invention clearly understand, below in conjunction with embodiment, the present invention is specifically described. It is to be understood that following word is only in order to describe one or more concrete enforcement modes of the present invention, protection domain the present invention specifically do not asked carries out considered critical.
Implement 1
Such as Fig. 1, shown in 3, the efficient treatment system of petrochemical wastewater, comprise and arranging successively, the front latter linked rough filtering device 11 that waste oil water is carried out coarse filtration, carry out waste oil water neutralizing the equalizing tank 12 regulating PH, the ionic adsorption pond, ion precipitation pond 131/ 132 that lead ion in waste oil water is separated, the oil-water separation tank 15 that oily components in waste oil water is separated, sewage after separation is carried out the aeration tank 16 of biochemical treatment and the sewage after biochemical treatment carries out the sand filtering device 17 of sand filtration, oil-water separation tank 15 is connected with oily components retrieving arrangement. ionic adsorption pond 132 is provided with the dog-house of the magnetic biological adsorption agent for adding adsorpting lead ion/add mechanism, air-blowing mouth is set at the bottom of the pond in ionic adsorption pond 132, air-blowing mouth place arranges filter, ionic adsorption pond 132 is set side by side with multiple, is provided with filtration unit 141 between ionic adsorption pond 132 and oil-water separation tank 15. oil-water separation tank 15 effluent stream is to being divided into mutually isolated A section pond and B section pond, and B section pond is divided into mutually isolated B1 pond and B2 pond, and first and second liquid outlet for being connected with B2 pond with B1 pond is offered in A section pond respectively.
Hydrophilic oleophobic membrane is obtained by following operation: first with dipping by lye, 600 object stainless (steel) wires are cleaned 20min, then with organic solvent ultrasonic cleaning 20min, is dried by stainless (steel) wire after ultrasonic cleaning; Subsequently stainless (steel) wire is placed in the first compositional liquor flood 54h, dipping terminate after with washed with de-ionized water and naturally dry; Finally flood 20h by woven wire the 2nd compositional liquor, also naturally dry by washed with de-ionized water after taking-up, organic solvent is that ethanol and acetone obtain according to the volume ratio preparation of 1.5:1, first compositional liquor is that Tutofusin tris, dopamine hydrochloride and hydrochloric acid soln preparation obtain, and in the first compositional liquor, Tutofusin tris content is 8.2g/L, dopamine hydrochloride content is 5.6g/L, PH=8.5; 2nd compositional liquor be Thiovanic acid, sulphur for succsinic acid, sodium hydroxide preparation obtain, in the 2nd compositional liquor, Thiovanic acid content is 2.48g/L, sulphur is 3.8g/L, PH=12.5 for succinic acid content.
Hydrophilic oleophobic membrane is assembled on hydrophilic thin oil filtration unit 153, then hydrophilic thin oil filtration unit 153 is arranged on first and second liquid outlet place in A section pond. First liquid outlet 151 in A section pond is enabled, 2nd liquid outlet 152 is closed, start rough filtering device 11, equalizing tank, ionic adsorption pond 132, filtration unit 141, A section pond, B1 pond, oil-water separation tank 15, aeration tank 16, sand filtering device 17, oily components retrieving arrangement, this system will be injected containing plumbous waste oil water and process continuously. If detecting in B1 pond that oil phase component occurs, then close B1 pond liquid outlet, the system of front and continued checks and/or adds the consumption of sorbent material so that lead ion eliminate completely. When after above-mentioned measure Results, close A section pond first liquid outlet 151, open the 2nd liquid outlet 152, start B2 pond to run, while running, the B1 pond polluted by oily components is cleared up and the hydrophilic thin oil filtration unit 153 of sex change is changed, use in order to changing B section pond next time. Make that the oily components in profit, water phase components can be separated completely, lead ion can be removed completely, ensure the reliable treatments containing plumbous waste oil water.
Embodiment 2
Such as Fig. 2, shown in 3, the efficient treatment system of petrochemical wastewater, comprise and arranging successively, the front latter linked rough filtering device 11 that waste oil water is carried out coarse filtration, carry out waste oil water neutralizing the equalizing tank 12 regulating PH, the ionic adsorption pond, ion precipitation pond 131/ 132 that lead ion in waste oil water is separated, the oil-water separation tank 15 that oily components in waste oil water is separated, sewage after separation is carried out the aeration tank 16 of biochemical treatment and the sewage after biochemical treatment carries out the sand filtering device 17 of sand filtration, oil-water separation tank 15 is connected with oily components retrieving arrangement. ion precipitation pond 131 is above be provided with dog-house for adding flocculation agent/add mechanism, the tracheae that vertical shape is arranged it is provided with in ion precipitation pond 131, the tube wall of tracheae evenly arranges pore, gas port place arranges filter, being provided with precipitate and separate pond 142 between ion precipitation pond 131 and oil-water separation tank 15, precipitate and separate pond 142 is set up in parallel multiple. oil-water separation tank 15 effluent stream is to being divided into mutually isolated A section pond and B section pond, and B section pond is divided into mutually isolated B1 pond and B2 pond, and first and second liquid outlet for being connected with B2 pond with B1 pond is offered in A section pond respectively.
Hydrophilic oleophobic membrane is obtained by following operation: first with dipping by lye, 600 object stainless (steel) wires are cleaned 20min, then with organic solvent ultrasonic cleaning 20min, is dried by stainless (steel) wire after ultrasonic cleaning; Subsequently stainless (steel) wire is placed in the first compositional liquor flood 54h, dipping terminate after with washed with de-ionized water and naturally dry; Finally flood 20h by woven wire the 2nd compositional liquor, also naturally dry by washed with de-ionized water after taking-up, organic solvent is that ethanol and acetone obtain according to the volume ratio preparation of 1.5:1, first compositional liquor is that Tutofusin tris, dopamine hydrochloride and hydrochloric acid soln preparation obtain, and in the first compositional liquor, Tutofusin tris content is 8.2g/L, dopamine hydrochloride content is 5.6g/L, PH=8.5; 2nd compositional liquor be Thiovanic acid, sulphur for succsinic acid, sodium hydroxide preparation obtain, in the 2nd compositional liquor, Thiovanic acid content is 2.48g/L, sulphur is 3.8g/L, PH=12.5 for succinic acid content.
Hydrophilic oleophobic membrane is assembled on hydrophilic thin oil filtration unit 153, then hydrophilic thin oil filtration unit 153 is arranged on first and second liquid outlet place in A section pond. First liquid outlet 151 in A section pond is enabled, 2nd liquid outlet 152 is closed, start rough filtering device 11, equalizing tank, ion precipitation pond 131, precipitate and separate pond 142, A section pond, B1 pond, oil-water separation tank 15, aeration tank 16, sand filtering device 17, oily components retrieving arrangement, this system will be injected containing plumbous waste oil water and process continuously. If detecting in B1 pond that oil phase component occurs, then close B1 pond liquid outlet, the system of front and continued checks and/or adds the consumption of sorbent material so that lead ion eliminate completely. When after above-mentioned measure Results, close A section pond first liquid outlet 151, open the 2nd liquid outlet 152, start B2 pond to run, while running, the B1 pond polluted by oily components is cleared up and the hydrophilic thin oil filtration unit 153 of sex change is changed, use in order to changing B section pond next time. Make that the oily components in profit, water phase components can be separated completely, lead ion can be removed completely, ensure the reliable treatments containing plumbous waste oil water.
Embodiment 3
Such as Fig. 1, shown in 3, the efficient treatment system of petrochemical wastewater, comprise and arranging successively, the front latter linked rough filtering device 11 that waste oil water is carried out coarse filtration, carry out waste oil water neutralizing the equalizing tank 12 regulating PH, the ionic adsorption pond, ion precipitation pond 131/ 132 that lead ion in waste oil water is separated, the oil-water separation tank 15 that oily components in waste oil water is separated, sewage after separation is carried out the aeration tank 16 of biochemical treatment and the sewage after biochemical treatment carries out the sand filtering device 17 of sand filtration, oil-water separation tank 15 is connected with oily components retrieving arrangement. ionic adsorption pond 132 is provided with the dog-house of the magnetic biological adsorption agent for adding adsorpting lead ion/add mechanism, air-blowing mouth is set at the bottom of the pond in ionic adsorption pond 132, air-blowing mouth place arranges filter, ionic adsorption pond 132 is set side by side with multiple, is provided with filtration unit 141 between ionic adsorption pond 132 and oil-water separation tank 15. oil-water separation tank 15 effluent stream is to being divided into mutually isolated A section pond and B section pond, and B section pond is divided into mutually isolated B1 pond and B2 pond, and first and second liquid outlet for being connected with B2 pond with B1 pond is offered in A section pond respectively.
Hydrophilic oleophobic membrane is obtained by following operation: first with dipping by lye, 600 object stainless (steel) wires are cleaned 20min, then with organic solvent ultrasonic cleaning 20min, is dried by stainless (steel) wire after ultrasonic cleaning; Subsequently stainless (steel) wire is placed in the first compositional liquor flood 54h, dipping terminate after with washed with de-ionized water and naturally dry; Finally flood 20h by woven wire the 2nd compositional liquor, also naturally dry by washed with de-ionized water after taking-up, organic solvent is that ethanol and acetone obtain according to the volume ratio preparation of 1.5:1, first compositional liquor is that Tutofusin tris, dopamine hydrochloride and hydrochloric acid soln preparation obtain, and in the first compositional liquor, Tutofusin tris content is 8.2g/L, dopamine hydrochloride content is 5.6g/L, PH=8.5; 2nd compositional liquor be polypropylene free radical polyalcohol, sulphur for succsinic acid, sodium hydroxide preparation obtain, in the 2nd compositional liquor, polypropylene free radical polyalcohol content is 4.5g/L, sulphur is 1.25g/L, PH=13 for succinic acid content; Polypropylene free radical polyalcohol is that 1 parts by weight propylene acid mono is dissolved in the distilled water of 2.5 weight parts; add the n-dodecyl mereaptan of 0.03 weight part and the 4 of 0.025 weight part; 4'-azo two (cyanopentanoic acid); 0.8h is reacted under nitrogen protection at 55 DEG C; being warming up to 75 DEG C of reaction 6.5h again, reaction is filtered after terminating, washing, dry obtained.
Hydrophilic oleophobic membrane is assembled on hydrophilic thin oil filtration unit 153, then hydrophilic thin oil filtration unit 153 is arranged on first and second liquid outlet place in A section pond. First liquid outlet 151 in A section pond is enabled, 2nd liquid outlet 152 is closed, start rough filtering device 11, equalizing tank, ionic adsorption pond 132, filtration unit 141, A section pond, B1 pond, oil-water separation tank 15, aeration tank 16, sand filtering device 17, oily components retrieving arrangement, this system will be injected containing plumbous waste oil water and process continuously. If detecting in B1 pond that oil phase component occurs, then close B1 pond liquid outlet, the system of front and continued checks and/or adds the consumption of sorbent material so that lead ion eliminate completely. When after above-mentioned measure Results, close A section pond first liquid outlet 151, open the 2nd liquid outlet 152, start B2 pond to run, while running, the B1 pond polluted by oily components is cleared up and the hydrophilic thin oil filtration unit 153 of sex change is changed, use in order to changing B section pond next time. Make that the oily components in profit, water phase components can be separated completely, lead ion can be removed completely, ensure the reliable treatments containing plumbous waste oil water.
Embodiment 4
Such as Fig. 2, shown in 3, the efficient treatment system of petrochemical wastewater, comprise and arranging successively, the front latter linked rough filtering device 11 that waste oil water is carried out coarse filtration, carry out waste oil water neutralizing the equalizing tank 12 regulating PH, the ionic adsorption pond, ion precipitation pond 131/ 132 that lead ion in waste oil water is separated, the oil-water separation tank 15 that oily components in waste oil water is separated, sewage after separation is carried out the aeration tank 16 of biochemical treatment and the sewage after biochemical treatment carries out the sand filtering device 17 of sand filtration, oil-water separation tank 15 is connected with oily components retrieving arrangement. ion precipitation pond 131 is above be provided with dog-house for adding flocculation agent/add mechanism, the tracheae that vertical shape is arranged it is provided with in ion precipitation pond 131, the tube wall of tracheae evenly arranges pore, gas port place arranges filter, being provided with precipitate and separate pond 142 between ion precipitation pond 131 and oil-water separation tank 15, precipitate and separate pond 142 is set up in parallel multiple. oil-water separation tank 15 effluent stream is to being divided into mutually isolated A section pond and B section pond, and B section pond is divided into mutually isolated B1 pond and B2 pond, and first and second liquid outlet for being connected with B2 pond with B1 pond is offered in A section pond respectively.
Hydrophilic oleophobic membrane is obtained by following operation: first with dipping by lye, 600 object stainless (steel) wires are cleaned 20min, then with organic solvent ultrasonic cleaning 20min, is dried by stainless (steel) wire after ultrasonic cleaning; Subsequently stainless (steel) wire is placed in the first compositional liquor flood 54h, dipping terminate after with washed with de-ionized water and naturally dry; Finally flood 20h by woven wire the 2nd compositional liquor, also naturally dry by washed with de-ionized water after taking-up, organic solvent is that ethanol and acetone obtain according to the volume ratio preparation of 1.5:1, first compositional liquor is that Tutofusin tris, dopamine hydrochloride and hydrochloric acid soln preparation obtain, and in the first compositional liquor, Tutofusin tris content is 8.2g/L, dopamine hydrochloride content is 5.6g/L, PH=8.5; In 2nd compositional liquor, polypropylene free radical polyalcohol content is 4.5g/L, sulphur is 1.25g/L, PH=13 for succinic acid content; Polypropylene free radical polyalcohol is that 1 parts by weight propylene acid mono is dissolved in the distilled water of 2.5 weight parts; add the n-dodecyl mereaptan of 0.03 weight part and the 4 of 0.025 weight part; 4'-azo two (cyanopentanoic acid); 0.8h is reacted under nitrogen protection at 55 DEG C; being warming up to 75 DEG C of reaction 6.5h again, reaction is filtered after terminating, washing, dry obtained.
Hydrophilic oleophobic membrane is assembled on hydrophilic thin oil filtration unit 153, then hydrophilic thin oil filtration unit 153 is arranged on first and second liquid outlet place in A section pond. First liquid outlet 151 in A section pond is enabled, 2nd liquid outlet 152 is closed, start rough filtering device 11, equalizing tank, ion precipitation pond 131, precipitate and separate pond 142, A section pond, B1 pond, oil-water separation tank 15, aeration tank 16, sand filtering device 17, oily components retrieving arrangement, this system will be injected containing plumbous waste oil water and process continuously. If detecting in B1 pond that oil phase component occurs, then close B1 pond liquid outlet, the system of front and continued checks and/or adds the consumption of sorbent material so that lead ion eliminate completely. When after above-mentioned measure Results, close A section pond first liquid outlet 151, open the 2nd liquid outlet 152, start B2 pond to run, while running, the B1 pond polluted by oily components is cleared up and the hydrophilic thin oil filtration unit 153 of sex change is changed, use in order to changing B section pond next time. Make that the oily components in profit, water phase components can be separated completely, lead ion can be removed completely, ensure the reliable treatments containing plumbous waste oil water.
The above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; after knowing the present invention record content; under the premise without departing from the principles of the invention; it can also make some equal conversion and replacement, and these convert on an equal basis and substitute and also should be considered as belonging to protection scope of the present invention.

Claims (1)

1. one kind utilizes hydrophilic oleophobic membrane that petrochemical wastewater is carried out the system of purifying treatment, comprise and arranging successively, the front latter linked rough filtering device that waste oil water is carried out coarse filtration, carry out waste oil water neutralizing the equalizing tank regulated, ion precipitation pond/ionic adsorption pond that lead ion in waste oil water is separated, to the oil-water separation tank that the oily components in waste oil water is separated, sewage after separation is carried out the aeration tank of biochemical treatment and the sewage after biochemical treatment carries out the sand filtering device of sand filtration, the liquid outlet of oil-water separation tank arranges hydrophilic thin oil filtration unit, oil-water separation tank is connected with oily components retrieving arrangement, ionic adsorption pond is provided with the dog-house of the magnetic biological adsorption agent for adding adsorpting lead ion/add mechanism, air-blowing mouth is set at the bottom of the pond in ionic adsorption pond, air-blowing mouth place arranges filter, ionic adsorption pond is set side by side with multiple, is provided with filtration unit between ionic adsorption pond and oil-water separation tank,
Hydrophilic thin oil filtration unit comprises hydrophilic oleophobic membrane, and hydrophilic oleophobic membrane is obtained by following operation: first with dipping by lye, 600 object stainless (steel) wires are cleaned 20min, then with organic solvent ultrasonic cleaning 20min, is dried by stainless (steel) wire after ultrasonic cleaning; Subsequently stainless (steel) wire is placed in the first compositional liquor flood 54h, dipping terminate after with washed with de-ionized water and naturally dry; Finally flood 20h by woven wire the 2nd compositional liquor, also naturally dry by washed with de-ionized water after taking-up, organic solvent is that ethanol and acetone obtain according to the volume ratio preparation of 1.5:1, first compositional liquor is that Tutofusin tris, dopamine hydrochloride and hydrochloric acid soln preparation obtain, and in the first compositional liquor, Tutofusin tris content is 8.2g/L, dopamine hydrochloride content is 5.6g/L, PH=8.5; 2nd compositional liquor be polypropylene free radical polyalcohol, sulphur for succsinic acid, sodium hydroxide preparation obtain, in the 2nd compositional liquor, polypropylene free radical polyalcohol content is 4.5g/L, sulphur is 1.25g/L, PH=13 for succinic acid content; Polypropylene free radical polyalcohol is that 1 parts by weight propylene acid mono is dissolved in the distilled water of 2.5 weight parts; add the n-dodecyl mereaptan of 0.03 weight part and the 4 of 0.025 weight part; 4'-azo two (cyanopentanoic acid); 0.8h is reacted under nitrogen protection at 55 DEG C; being warming up to 75 DEG C of reaction 6.5h again, reaction is filtered after terminating, washing, dry obtained.
CN201610124434.1A 2014-12-10 2014-12-10 The system that purified treatment is carried out to petrochemical wastewater using hydrophilic and oleophobic film Expired - Fee Related CN105621813B (en)

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