CN108128851A - A kind of method for recycling sodium chloride solution in preserved szechuan pickle waste water with high salt - Google Patents

A kind of method for recycling sodium chloride solution in preserved szechuan pickle waste water with high salt Download PDF

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Publication number
CN108128851A
CN108128851A CN201810078646.XA CN201810078646A CN108128851A CN 108128851 A CN108128851 A CN 108128851A CN 201810078646 A CN201810078646 A CN 201810078646A CN 108128851 A CN108128851 A CN 108128851A
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China
Prior art keywords
sodium chloride
semi
permeable membrane
water
bag filter
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CN201810078646.XA
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Chinese (zh)
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CN108128851B (en
Inventor
武凯
蒋德敏
平巍
程聪
吴彦
杨琳
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Chongqing Three Gorges University
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Chongqing Three Gorges University
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    • 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
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D3/00Halides of sodium, potassium or alkali metals in general
    • C01D3/04Chlorides
    • C01D3/06Preparation by working up brines; seawater or spent lyes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/32Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions

Abstract

The invention belongs to the utilization technology fields of high-salt wastewater, disclose a kind of method for recycling sodium chloride solution in preserved szechuan pickle waste water with high salt, pass through the molecule of different molecular weight and the Immunohistochemistry of ion using the semi-permeable membrane of different pore size;And successively filtered using the semi-permeable membrane of different pore size, only sodium chloride is filled into water purification, carries out partially recycled sodium chloride;Molecule, ion, organic matter, the sodium chloride without recycling that molecular weight is more than to sodium chloride are flowed out from wastewater outlet.The structure of the present invention is simple, the sodium chloride in the high salt organic waste water that effectively can be generated during remanufacture, so as to continue production for carrying out hot pickled mustard tuber or as other purposes, that realizes soluble-salt resource follows bad utilize.

Description

A kind of method for recycling sodium chloride solution in preserved szechuan pickle waste water with high salt
Technical field
The invention belongs to the salt field of resource recovery technique in high-salt wastewater, disclose a kind of recycling hot pickled mustard tuber with high salt and give up In water the method for sodium chloride solution more particularly to it is a kind of recycle hot pickled mustard tuber preparation process in high salt organic waste water in sodium chloride salt The technical method divided, also relates to a kind of method using this technology to recycle the device of sodium chloride salt resource.
Background technology
The preparation process of hot pickled mustard tuber can generate a large amount of high salt organic waste water.At present, the processing of traditional high salt organic waste water Method has electrodialysis, distillation, reverse osmosis, ion exchange etc., but these technical methods are not related to the recycling profit of salt resource With.Problem of the existing technology is:The processing method of traditional high-salt wastewater has electrodialysis, distillation, reverse osmosis, ion exchange Deng the cost of these processing methods is all relatively high, but they are not related to the recycling of salt resource, they final Product is that the brine waste of low stain object content is either free of the pure water for staining object, their purpose is high salt organic waste water Meet discharging standards requirement after treatment, realize qualified discharge, and can not achieve the mesh of the sodium chloride salt resource of recycling 's.
In short, traditional method can not achieve the purpose of recycling sodium chloride salt resource, also it is not related to reusing sodium chloride The problem of salinity.
Invention content
In view of the problems of the existing technology, sodium chloride solution in preserved szechuan pickle waste water with high salt is recycled the present invention provides a kind of Method, innovation of the present invention is exactly the recycling for stressing salt resource, and all wastewater treatment method roots of the Yi Shang prior art This is not related to the recycling of salt resource.
A kind of method for recycling sodium chloride solution in preserved szechuan pickle waste water with high salt, sodium chloride is molten in the recycling preserved szechuan pickle waste water with high salt The method of liquid utilizes Immunohistochemistry, because the semi-permeable membrane of different pore size can pass through the molecule and ion of different molecular weight.Hole Diameter is bigger, and passable molecular weight is with regard to big.It is conversely, then smaller.The essence of the invention be using different pore size semi-permeable membrane successively Filtering is only filled into sodium chloride in water purification, so as to fulfill the purpose of partially recycled sodium chloride.Even if actually partially recycled chlorine Change sodium, total amount is also considerable, and those molecular weight are more than the molecule and ion of sodium chloride, including the Organic substance in water that gives up Will and those without recycle sodium chloride together all from wastewater outlet flow out.
Another object of the present invention is that providing a kind of device for recycling sodium chloride solution in preserved szechuan pickle waste water with high salt is provided with:Storage Hydrophone;
The semi-permeable membrane bag filter is divided into three layers, respectively internal semi-permeable membrane bag filter, and middle part semi-permeable membrane bag filter is external Semi-permeable membrane bag filter, is placed on inside water receiver;Purpose is to realize the debirs of the different molecular weight in high salt organic waste water Fallen by layered filtration.
The water inlet is mounted on internal semi-permeable membrane bag filter head, and water outlet is mounted on semi-permeable membrane bag filter tail portion.
Further, the interlayer between the sack innermost layer and sack and sack is both transparent for the water without any impurity, It is 200 that internal semi-permeable membrane bag filter, which can pass through molecular weight, and intermediate semi-permeable membrane bag filter, which is, molecular weight to be thoroughly 100, and outer layer is semi-transparent Film bag filter, which is, molecular weight to be thoroughly 50.Theory and practice proves:Divide because never existing to be less than in high salt organic waste water The organic matter of son amount 50, dissolved organic matter of the molecular weight higher than 50 includes amino acid, protein and fat etc. can be by semi-permeable membrane Layered filtration falls bag filter successively, can only have sodium chloride salinity to solve in water by the substance of the semi-permeable membrane bag filter of molecular weight 50 Chlorion and sodium ion from generation, so as to fulfill the purpose of recycling sodium chloride salinity.
Further, the water receiver cover board is sealed with water receiver junction with sealing ring.
The configuration of the present invention is simple can effectively recycle the chlorination in the high salt organic waste water generated in hot pickled mustard tuber production process Sodium, so as to continue production for carrying out hot pickled mustard tuber or as other purposes, that realizes sodium chloride salt resource follows bad utilization.
The present invention is using Immunohistochemistry, because to penetrate through molecular weight with can having differentiation big for the semi-permeable membrane of different pore size Small different molecule and ion.Membrane aperture is bigger, and passable molecular weight is relatively bigger.Membrane aperture is smaller, then only smaller Middle Molecular Substance could pass through.The essence of the invention is successively filtered using the semi-permeable membrane of different pore size, and only sodium chloride is filtered Into water purification, so as to fulfill the purpose of partially recycled sodium chloride.Even if actually partially recycled sodium chloride, total amount are also very Considerable, and those molecular weight are more than the molecule and ion of sodium chloride, will not be recycled with those including useless Organic substance in water Sodium chloride together all from wastewater outlet flow out.
Description of the drawings
Fig. 1 is the apparatus structure schematic diagram of sodium chloride solution in recycling preserved szechuan pickle waste water with high salt provided in an embodiment of the present invention;
In figure:1st, water receiver;2nd, internal semi-permeable membrane bag filter;3rd, middle part semi-permeable membrane bag filter;4th, external semi-permeable membrane dialysis Bag;5th, wastewater effluent mouth;6th, nitrogen or carbon dioxide gas air inlet;7th, exhaust outlet;8th, observation window;9th, water purification water inlet;10、 Water outlet.
Specific embodiment
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and coordinate attached drawing 1 detailed description are as follows.
The structure of the present invention is explained in detail below in conjunction with the accompanying drawings.
The method of sodium chloride solution in recycling provided in an embodiment of the present invention preserved szechuan pickle waste water with high salt, using Immunohistochemistry, Because the semi-permeable membrane of different pore size can pass through the molecule and ion of different molecular weight.Aperture is bigger, and passable molecular weight is just Greatly.It is conversely, then smaller.The essence of the invention is successively filtered using the semi-permeable membrane of different pore size, and only sodium chloride is filled into only In water, so as to fulfill the purpose of partially recycled sodium chloride.Even if actually partially recycled sodium chloride, total amount are also considerable , and those molecular weight are more than the molecule and ion of sodium chloride, it will be with those without the chlorine of recycling including useless Organic substance in water Change sodium all to flow out from wastewater outlet together.
As shown in Figure 1, the device of sodium chloride solution is set in recycling preserved szechuan pickle waste water with high salt provided in an embodiment of the present invention Have:Water receiver 1;Semi-permeable membrane bag filter is divided into three layers, respectively internal semi-permeable membrane bag filter 2, middle part semi-permeable membrane bag filter 3, outside Portion's semi-permeable membrane bag filter 4, is placed on inside water receiver 1;Water inlet is mounted on internal 2 head of semi-permeable membrane bag filter, and water outlet 5 is pacified Mounted in semi-permeable membrane bag filter tail portion.
1 upper left of water receiver is nitrogen or carbon dioxide gas air inlet 6;1 upper right of water receiver is exhaust outlet 7;On water receiver 1 It is observation window 8 among face;1 lower-left of water receiver is water purification water inlet 9;1 bottom right of water receiver is water outlet 10.
Further, the interlayer between sack innermost layer and sack and sack is both transparent for the water without any impurity, internal It is 200 that semi-permeable membrane bag filter 2, which can pass through molecular weight, and intermediate semi-permeable membrane bag filter 3, which is, molecular weight to be thoroughly 100, outer layer semi-permeable membrane Bag filter 4, which is, molecular weight to be thoroughly 50.
Further, water receiver cover board is sealed with 1 junction of water receiver with sealing ring.
The operation principle of the present invention:
1st, the high salt organic waste water generated in hot pickled mustard tuber production process is precipitated, it is insoluble removes the solid that can wherein settle Property impurity, the length of sack is unlimited, and the size of the amount of waste water that can be generated according to actual production be adjusted.
2nd, the hot pickled mustard tuber organic wastewater 1000L that salinity is more than 70 is imported in the dialysis sack of threeply, sack, which is put into, to be contained Nitrogen or carbon dioxide gas are filled in the water receiver for having 1000L pure water, in water receiver, is sealed, it is therefore an objective in shroud air Oxygen, prevent the bacterial growth in waste water and breeding.3-72 hours or longer time are placed, at this point, detected through analysis, The salinity of pure water constantly increases to 50--100 or higher salinity levels, recycles the constantly increased greening sodium salt of these salinity Aqueous solution.
3rd, saline solutions of these recycling are not because contain amino acid, protein, fat etc. and other organic impurities, because Without former hot pickled mustard tuber solution hot pickled mustard tuber taste and be not easy grow bacterium caused by rot, can add thereto again a certain amount of Solid sodium chloride salinity and continue on for a new round hot pickled mustard tuber production in first time pickle, it can also be used in hot pickled mustard tuber production process Production sodium chloride brine during second of the opposite low salt needed is marinated and marinated for the third time.
4th, the amount of crude brine used and pure water can be adjusted according to the amount of crude brine, be not limited to 1000L, especially It is actual production process, can be changed according to actual production and changed.
5th, organic brine with high salt seals time of placement in a reservoir to become according to the variation of actual production temperature Change.Because when temperature is high, the activity of effects of ion is relatively large, ion is opposite fast by the speed of semi-permeable membrane bag filter, because And soluble-salt segregant is shortened by the time used in semi-permeable membrane bag filter.
The above is only the preferred embodiments of the present invention, and not makees limitation in any form to the present invention, Any simple modification made to the above embodiment of every technical spirit according to the present invention, equivalent variations and modification, belong to In the range of technical solution of the present invention.

Claims (4)

  1. A kind of 1. method for recycling sodium chloride solution in preserved szechuan pickle waste water with high salt, which is characterized in that the recycling preserved szechuan pickle waste water with high salt The method of middle sodium chloride solution passes through the molecule of different molecular weight and the Immunohistochemistry of ion using the semi-permeable membrane of different pore size; And successively filtered using the semi-permeable membrane of different pore size, only sodium chloride is filled into water purification, carries out partially recycled sodium chloride;It will divide Son amount is flowed out more than the molecule of sodium chloride, ion, organic matter, the sodium chloride without recycling from wastewater outlet.
  2. 2. a kind of recycling hot pickled mustard tuber with high salt using the method for sodium chloride solution in recycling preserved szechuan pickle waste water with high salt described in claim 1 gives up The device of sodium chloride solution in water, which is characterized in that the device of sodium chloride solution is provided in the recycling preserved szechuan pickle waste water with high salt: Water receiver;
    The semi-permeable membrane bag filter is divided into three layers, respectively internal semi-permeable membrane bag filter, and middle part semi-permeable membrane bag filter is external semi-transparent Film bag filter, is placed on inside water receiver;
    The water inlet is mounted on internal semi-permeable membrane bag filter head, and water outlet is mounted on semi-permeable membrane bag filter tail portion.
  3. 3. the device of sodium chloride solution in preserved szechuan pickle waste water with high salt is recycled as claimed in claim 2, which is characterized in that the sack Interlayer between innermost layer and sack and sack is both transparent for the water without any impurity, and internal semi-permeable membrane bag filter can pass through point Son amount is 200, and intermediate semi-permeable membrane bag filter, which is, molecular weight to be thoroughly 100, and outer layer semi-permeable membrane bag filter, which is, molecular weight to be thoroughly 50.
  4. 4. the device of sodium chloride solution in preserved szechuan pickle waste water with high salt is recycled as claimed in claim 2, which is characterized in that the water storage Device cover board is sealed with water receiver junction with sealing ring.
CN201810078646.XA 2018-01-26 2018-01-26 Method for recycling sodium chloride solution in high-salt preserved szechuan pickle wastewater Active CN108128851B (en)

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