CN206156979U - High processing apparatus who contains salt difficult degradation saccharin industrial waste water waste gas - Google Patents
High processing apparatus who contains salt difficult degradation saccharin industrial waste water waste gas Download PDFInfo
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- CN206156979U CN206156979U CN201621163045.1U CN201621163045U CN206156979U CN 206156979 U CN206156979 U CN 206156979U CN 201621163045 U CN201621163045 U CN 201621163045U CN 206156979 U CN206156979 U CN 206156979U
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Abstract
The utility model provides a high salt difficult degradation industrial wastewater treatment device that contains, the device includes the removing metal reaction tank, the acid -base neutralization pond, second grade flocculation and precipitation pond, triple effect evaporation crystallization device, integration biological treatment pond, activated carbon filtering pond, sedimentation tank, storage mud sump, filter press, alkaline spray column, active carbon absorption tower, wherein go to heavy metal ion removal reaction tank and acid -base neutralization pond, second grade flocculation and precipitation pond, triple effect evaporation crystallization device, cooling tower, the biological pond of integration, sedimentation tank, activated carbon filtering pond consecutive, the setting of storage mud sump is in the equipment room, and the mud of second grade flocculation and precipitation pond and sedimentation tank passes through the sludge pump and gets into the storage mud sump, and the mud that stores up the mud sump passes through the sludge pump and gets into filter press, alkaline spray column links to each other with active carbon absorption tower among the exhaust -gas treatment. Can realize through the device that the height contains salt industrial waste water's advanced treatment and discharge to reach standard, society, economy and environmental benefit are being shown to be improved.
Description
Technical field
This utility model is related to saccharin technique for treating industrial wastewater field, specifically a kind of high saliferous difficult degradation saccharin
The processing meanss of industrial wastewater waste gas.
Background technology
The way of production of high saliferous industrial wastewater is extensive, and the water yield also increases year by year.This waste water contains many kinds of substance
(including inorganic salt, Organic substance and heavy metal ion etc.).It is different according to production process, the chemical composition of high saliferous industrial wastewater,
Species and property of Organic substance etc. differ greatly, and organism kinds are more, and contain part hardly degraded organic substance, therefore to environment
The harm for causing is larger.
Saccharin is a kind of chemical intermediate, is production Camphora, the primary raw material of herbicide tribenuron-methyl, while or for contaminating
Material and the intermedium of medicine production.During synthesizing the material, raw material type is more, complex process, the waste water for causing which to discharge
Complicated component, COD are high, colourity depth, and discharge capacity is big.Production waste water not only contains substantial amounts of organic pollution, and Organic substance mostly is
Compound fragrant hydrocarbon and poisonous organic solvent, such as methyl 2-aminobenzoate, ortho-sulphobenzimide ammonium salt, methanol,
The materials such as 0-chloro-benzoic acid methyl ester, phthalic anhydride, also contain substantial amounts of heavy metal copper ion and inorganic matters in waste water, waste water inorganic salt contains
Salt amount is up to 12%, and in waste water, chloride ion content is up to 6%.Secondly it is containing sulfate, sulphite, nitrate etc. in waste water, rotten
Erosion scaling tendency is extremely strong, and contaminative is extremely strong.
The characteristics of for high saliferous industrial wastewater, such waste water is processed using bioanalysises, be cost of investment and fortune
Row cost is minimum.But when the salinity of saccharin wastewater is more than 12%, under the conditions of chlorine ion concentration is more than 6%, traditional anaerobism is good
The biochemical processing process such as oxygen are difficult to complete, and high COD affects desalination, is gone by embrane method in the waste water that high density pollution thing is present
Organic pollution except inorganic salt also is difficult to carry out, after can only first taking materialization technology to carry out waste water desalination, in waste water is removed.
There are many researchs and application report with regard to waste water desalting technology, such as evaporation (heat concentration), chemical precipitation, ion are handed over
Change, reverse osmosiss, electrodialysis etc..Ion exchange is only applicable to low concentration brine waste, and processing high saliferous industrial wastewater can cause
Ion exchange resin quickly saturation and need repeated regeneration, also produce secondary wastewater；Hyperfiltration is used to process high containing salt industrial
The problem that waste water is present is that requirement reverse osmotic pressure height causes energy consumption to increase, and cycles of concentration low strap carrys out concentrated water drainage greatly, and height contains
In salt industrial waste water, content of organics height, impurity are more, can cause the serious fouling membrane of water treatment procedure fouling membrane；Electrodialysis are used for
The fouling membrane that industrial wastewater desalination Organic substance is caused in film surface adsorption etc., makes electrodialysis system be difficult for long-term stable operation.Its
Middle hot concentration technology is concentrated the solid high power in liquid using heat energy, and generally existing equipment is huge, the problem of high energy consumption,
Operating cost can be reduced with reducing energy consumption by increasing efficiency.
In view of such waste water quality is complicated, high saliferous, hardly degraded organic substance content are high, the characteristic of biodegradability difference is proposed
First pass through materialization effect to remove suspended material in water and some organic pollutants, salt in waste water is removed by triple effect evaporation then
After point.Therefore for the water quality characteristicses of high saliferous industrial wastewater, inquiring into different methods and technique carries out Integration ofTechnology ability in fact
Existing waste water effective process and effluent resource.
The content of the invention
This utility model provides a kind of high saliferous indegradable industrial effluent processing method and processing device, by physico-chemical process and life
The coupling of change method and synergism, realize high saliferous advanced treatment of industrial waste water and desalting technology, and the technology realizes high removal
Rate, it is economic and practical, can stabilized treatment, without secondary public hazards.
For achieving the above object, the utility model discloses following technical scheme：
A kind of device for high saliferous difficult degradation saccharin industrial wastewater exhaust-gas treatment, it is characterised in that the device includes
Except metal reaction pond；Acid-base neutralization pond, two grades of flocculation sedimentation tanks, triple effect evaporation crystallization apparatus, integral biological treatment tank, activity
Carbon filter, sedimentation tank, storage basin, filter press, alkaline spray column, activated carbon absorption tower；Removing heavy metals reaction tank 1 is removed wherein
With 2, two grades of acid-base neutralization pond flocculation sedimentation tank 3, triple effect evaporation crystallization apparatus 4, cooling tower 5, integral biological pond 6, sedimentation tank
7th, activated carbon filter 8 is sequentially connected；Storage basin 9 is arranged in equipment room, and the sludge of two grades of flocculation sedimentation tanks 3 and sedimentation tank 7 leads to
Sludge pump is crossed into storage basin 9, the sludge of storage basin enters filter press 10 by sludge pump；Exhaust-gas treatment neutral and alkali is sprayed
Tower 11 is connected with activated carbon absorption tower 12.
This utility model further discloses high saliferous difficult degradation saccharin industrial wastewater waste gas processing method and contains for height
Application in terms of salt indegradable industrial effluent advanced treating and desalination reuse.High saliferous industrial wastewater therein refer to saccharin,
Coal Chemical Industry, weaving, papermaking, dyestuff, the industrial wastewater produced in oil and natural gas production and processing.It is using the integrated technology, real
Existing high saliferous advanced treatment of industrial waste water and desalination reuse technology.Realize high clearance, can stabilized treatment, without secondary public affairs
Evil, while can realize that resource is reclaimed, significantly improves to society, economy and environmental benefit.
This utility model more detailed description is as follows：
A kind of high saliferous indegradable industrial effluent processing method, it is characterised in that carry out by the steps：
（1）The acid waste water of copper ions adds excessive iron plane flower, and the copper ion in acid waste water is separated out；
（2）Will（1）Supernatant and the useless neutralization of alkalescence, pH is between 6-8 for regulation.Adjacent aminobenzene is separated out in temperature 12-15 DEG C
Methyl formate, is back to use in production technology after resource reclaim methyl 2-aminobenzoate material；
（3）Composite waste is carried out into multistage flocculation sediment, the COD in waste water is removed and is suspended and ammonia nitrogen substances.
（4）The material of removal part COD, suspension, ammonia nitrogen is carried out into triple effect evaporation crystallization；Kettle is residual for sodium sulfate and Sodium Chloride
Salt-mixture；Carry out resource reclaim or sale；
（5）The condensed water of triple effect evaporation is cooled to into less than 35 DEG C by cooling tower, integral biological processing system is carried out
In；
（6）Will（5）Water outlet enters standard water discharge discharge after activated carbon filter；
（7）All cell body are added a cover, and collecting waste gas carries out after alkaline spray the high altitude discharge after activated carbon absorption tower.
Particularly step（1）Spend to reclaim copper ion using iron plane, add excessive iron plane flower, make the whole copper in waste water
Ion is reclaimed, and the concentration for residuing in waste water copper ion is less than 0.5mg/L.Meet last water outlet and reach country《Integrated wastewater is arranged
Put standard》(GB8978-1996) primary standard.
Particularly step（1）The acid waste water and the alkaline waste water in saccharin synthesis for removing copper ion carries out waste water neutralization,
After neutralization, waste water acid-base value sodium hydroxide and hydrochloric acid are adjusted neutrality, separate out ortho-aminobenzoic acid in temperature 12-15 DEG C
Methyl ester, is back to use in production technology after methyl 2-aminobenzoate is reclaimed；
Particularly step（4）Water outlet carries out multistage flocculation sediment, by suspended material, solubility organic pollution COD, ammonia nitrogen
Deng removing, by adding bodied ferric sulfate（PFS）Float in waste water is removed with special flocculant ethoxyl_sesbania gum solution
SS and some organic pollutants, the pivotal role of enhanced flocculation section are to remove most of aromatic compounds so that waste water
Will not foam when being evaporated tacky, be unlikely to block triple effect evaporation equipment.Adjusted using NaOH during enhanced flocculation
Subtract, promote the flocculation and cohesion of fine particle and some big organic molecules, generate a big and closely knit floccule body, so as to promote
Enter cohesion.
Particularly step（5）Water outlet carries out triple effect evaporation crystallization, removes sodium sulfate and Sodium Chloride salinity in waste water；Triple effect
For brown color liquid, after evaporation, kettle is residual for brownish red, has white crystals, and crystalline volume accounts for the 50% of mother solution volume for evaporation water inlet.Steam
Amount is sent out for 90%.Condensation of water is colourless solution, slightly muddy, has abnormal flavour, and temperature is 60 DEG C, by waste water after cooling tower is lowered the temperature
It is discharged in cooling bay, leaving water temperature reaches and less than 35 DEG C of waste water, carries out the process of next unit.
Particularly step（6）Triple effect condensed water enters integral biological system, integration after being lowered the temperature by cooling tower
Biosystem includes waste water hydrolysis acidification pool, and the COD degradation of waste water is arrived 100mg/L or so by contact-oxidation pool；Particularly step
（7）After activated carbon filter tower, standard water discharge is discharged for water outlet.
A kind of high saliferous difficult degradation saccharin industrial wastewater waste gas processing method disclosed in this utility model and device with it is existing
Technology compares had good effect：
（1）Up to the present, saccharin wastewater is processed not by desalting technology, is difficult with conventional materialization and biological method
Process up to standard.
（2）The preconditioning technique of saccharin wastewater is also the key technology of saccharin wastewater process up to standard, is realized high containing salt worker
The efficient process of industry waste water and resource reuse, improve society, economy and environmental benefit.
（3）Simple method is creatively carried out Integration ofTechnology by this utility model, by pretreatment, desalination and biochemistry etc.
Integration ofTechnology, can effectively process high slat-containing wastewater and be allowed to qualified discharge.With waste water recycling, waste water value component circulation profit
The advantages of.Suitable high slat-containing wastewater processes industrial applications and large-scale promotion.
Description of the drawings
Fig. 1 is a kind of high saliferous indegradable industrial effluent processing technological flow figure：
Fig. 2 processes square structure schematic diagram for a kind of high saliferous indegradable industrial effluent：
Wherein
Remove removing heavy metals reaction tank 1, acid-base neutralization pond 2, two grades of flocculation sedimentation tanks 3,
Triple effect evaporation crystallization apparatus 4, cooling tower 5, integral biological treatment tank 6, sedimentation tank 7,
Activated carbon filter tower 8, storage basin 9, filter press 10, alkaline spray column 11
Activated carbon absorption tower 12.
Specific embodiment
This utility model is described below by specific embodiment.Unless stated otherwise, it is used in this utility model
Technological means are method known in those skilled in the art.In addition, embodiment be interpreted as it is illustrative, it is and unrestricted
Scope of the present utility model, spirit and scope of the present utility model are limited only by the claims that follow.For people in the art
For member, on the premise of without departing substantially from this utility model spirit and scope, to material component and consumption in these embodiments
The various changes or change for carrying out fall within protection domain of the present utility model.Flocculant ethoxyl_sesbania gum therein, Polyferric Sulfate
（PFS）There is sale in market.
Embodiment 1
A kind of processing meanss for high saliferous difficult degradation saccharin industrial wastewater waste gas, the device include removing metal reaction
Pond；Acid-base neutralization pond, two grades of flocculation sedimentation tanks, triple effect evaporation crystallization apparatus, integral biological treatment tank, activated carbon filter sink
Shallow lake pond, storage basin, filter press, alkaline spray column, activated carbon absorption tower；Wherein go in removing heavy metals reaction tank 1 and soda acid
With 2, two grades of pond flocculation sedimentation tank 3, triple effect evaporation crystallization apparatus 4, cooling tower 5, integral biological pond 6, sedimentation tank 7, activated carbon
Filter tank 8 is sequentially connected；Storage basin 9 is arranged in equipment room, and the sludge of two grades of flocculation sedimentation tanks 3 and sedimentation tank 7 passes through sludge pump
Into storage basin 9, the sludge of storage basin enters filter press 10 by sludge pump；Exhaust-gas treatment neutral and alkali spray column 11 and work
Property carbon adsorption tower 12 be connected.
Embodiment 2
A kind of high saliferous difficult degradation saccharin industrial wastewater waste gas processing method, it is characterised in that carry out by the steps：
（1）The acid waste water of copper ions adds excessive iron plane flower, and the copper ion in acid waste water is separated out；Spent acidic
Iron plane flower amount is added in water：The iron ion that 1mol is added according to 1mol copper ions is added；
（2）Will（1）After supernatant and alkaline waste water are neutralized, pH is adjusted between 7, in temperature, 12 DEG C separate out adjacent amino
Essence of Niobe, is back to use in production technology after resource reclaim methyl 2-aminobenzoate material；
（3）Composite waste is carried out into multistage flocculation sediment, the COD in waste water is removed and is suspended and ammonia nitrogen substances；Described
Flocculation sediment refers to add Polyferric Sulfate（PFS）Waste water is removed with wastewater pH is adjusted after flocculant ethoxyl_sesbania gum solution to after 8
Middle ss suspended solid and some organic pollutants；Wherein Polyferric Sulfate（PFS）Optimum dosage is 800mg/l, flocculant ethoxy sesbania
Glue dosage is 0.15%.
（4）The material of removal part COD, suspension, ammonia nitrogen is carried out into triple effect evaporation crystallization；Kettle is residual for sodium sulfate and Sodium Chloride
Salt-mixture；Carry out resource reclaim or sale；
（5）The condensed water of triple effect evaporation is cooled to into less than 35 DEG C by cooling tower, integral biological processing system is carried out
In；Described integral biological processing system refers to hydrolysis acidification+catalytic oxidation processing system.
（6）Will（5）Water outlet enters standard water discharge discharge after activated carbon filter；
（7）All cell body are added a cover, and collecting waste gas carries out after alkaline spray the high altitude discharge after activated carbon absorption tower.
Embodiment 3
Multistage flocculation sediment is to add Polyferric Sulfate and special flocculant hydroxyl by the waste water of pretreatment and after washing material waste water mixing
Ethyl sesbania sol solution（Usage and consumption see reference document 1）Adjusted with sodium hydroxide afterwards and hanged in the rear removal waste water of pH to 8 or so
Float SS and some organic pollutants, the pivotal role of enhanced flocculation section are to remove most of aromatic compounds so that
Waste water will not foam when being evaporated it is tacky, be unlikely to block triple effect evaporation equipment.Water outlet after triple effect evaporation, kettle
It is residual to be crystallized, obtain the mixed salt of sodium sulfate and Sodium Chloride；Condensed water enters integrated biochemistry pool after cooling tower cooling, enters
One step reduces the organic pollutions such as the COD of waste water, ammonia nitrogen, and water outlet is through activated carbon filter qualified discharge.
Wherein, triple effect evaporation is the conventional method of current saline solution concentrating and desalinating.Three-effect evaporation and condensation technique, three are steamed
The evaporation operation of device series operation is sent out, steam thermal energy is repeatedly utilized, so as to improve the utilization rate of heat energy.So as to improve heat
The utilization rate of energy is used, energy saving design, meets energy-saving and emission-reduction, the principle of recycling economy development advocated at present.First evaporation
Device becomes the first effect, and to give birth to steam as heating steam, other two becomes the second effect, triple effect.With the two of its previous effect
Secondary steam as heating steam, so as to the consumption of raw steam can be greatly reduced.Due in waste water containing the chlorination that concentration is higher
Sodium and sodium sulfate, the chloride ion corrosion problem in waste water are serious, and therefore, triple effect evaporator heating tube is corrosion-resistant using titanium alloy for work
Material makes, and separator adopts stainless steel making, to guarantee service life of equipment.Simultaneously as in waste water sodium sulfate concentration compared with
Height, its solution prevent in evaporation and concentration using reinforcing concentration stirring and forced circulation condensing mode, with improve heat transfer efficiency and
Evaporation rate, it is to avoid pipeline is blocked by solid salt, it is ensured that system treatment effect（See document 2）.
Wherein, in handling process running, triple effect evaporation is closing and tiny structure running status, and end tail gas has spray
Drench facility and absorb tail gas；Vacuum equipment be steam jet pump equipment, the gas for ejecting through heat exchanger condensation reclaim, carry out
Back-end processing.Therefore arrange outside no waste gas in evaporation process.Contain in the hyposaline vapor for evaporating for sloughing salinity
COD, may return to biochemical treatment system, carry out biochemical process up to standard.
Wherein, after triple effect evaporation, it is Sodium Chloride and sodium sulfate and some organic pollutants that kettle is residual.To reclaim after kettle residual centrifugation
Separate out salts substances be pyrolyzed, by organic substance pyrolysis fall, surplus materialss be pure salts substances, salt-mixture G sell.Centrifugation
Waste water returns to front-end processing.
Embodiment 5
The factory of certain production saccharin, its technique is that phthalic anhydride amidatioon is made o-amino-acid methyl ester, is passed through
Diazonium, displacement, chlorination, ammonification, cyclisation are formed, the waste water point esterification waste water of generation（Copper ions acid waste water）, displacement waste water
（Alkaline waste water）Constitute with three part of material waste water is washed.Esterification waste water is added into iron plane flower first, copper ion is proposed；Then by copper removal
Waste water and basic displacement waste water afterwards first carries out neutralization reaction, and methyl 2-aminobenzoate is separated out at 12-15 DEG C, and resource reclaim gives up
After copper ion and methyl 2-aminobenzoate in water, water outlet and wash material waste water mixing after carry out wastewater treatment again.Waste water is carried out
After the process of this paper integrated technologies, result see the table below：Following table is shown the treatment effect of each processing unit, the final knot for showing
Fruit be, by set forth herein integrated technology process after, effluent index has reached country《Integrated wastewater discharge standard》
(GB8978-1996) primary standard；
Each unit treatment effect
List of references：
[1] Li Deliang, Ding Ying, Li Guimin, etc. the coagulation of saccharin production waste water-biochemical processing method research, Henan
College journal (natural science edition) .2003,33 (1):48-52.
[2] Yang Jia villages, using efficient triple effect evaporation technical finesse high-concentration waste water, environmental health 2007,15（3）35-
37。
Claims (1)
1. a kind of processing meanss of high saliferous difficult degradation saccharin industrial wastewater waste gas, it is characterised in that the device includes removing metal
Reaction tank；Acid-base neutralization pond, two grades of flocculation sedimentation tanks, triple effect evaporation crystallization apparatus, integral biological treatment tank, activated carbon filter
Pond, sedimentation tank, storage basin, filter press, alkaline spray column, activated carbon absorption tower；Removing heavy metals reaction tank is removed wherein（1）With
Acid-base neutralization pond（2）, two grades of flocculation sedimentation tanks（3）, triple effect evaporation crystallization apparatus（4）, cooling tower（5）, integral biological pond
（6）, sedimentation tank（7）, activated carbon filter（8）It is sequentially connected；Storage basin（9）It is arranged in equipment room, two grades of flocculation sedimentation tanks（3）
And sedimentation tank（7）Sludge storage basin is entered by sludge pump（9）, the sludge of storage basin enters filter press by sludge pump
（10）；Exhaust-gas treatment neutral and alkali spray column（11）With activated carbon absorption tower（12）It is connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621163045.1U CN206156979U (en) | 2016-10-25 | 2016-10-25 | High processing apparatus who contains salt difficult degradation saccharin industrial waste water waste gas |
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|---|---|---|---|
| CN201621163045.1U CN206156979U (en) | 2016-10-25 | 2016-10-25 | High processing apparatus who contains salt difficult degradation saccharin industrial waste water waste gas |
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ID=58656154
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055927A (en) * | 2016-10-25 | 2017-08-18 | 天津市联合环保工程设计有限公司 | A kind of high saliferous difficult degradation saccharin industrial wastewater waste gas processing method and device |
| CN108298619A (en) * | 2018-03-02 | 2018-07-20 | 徐奎元 | Industrial sewage process method |
-
2016
- 2016-10-25 CN CN201621163045.1U patent/CN206156979U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055927A (en) * | 2016-10-25 | 2017-08-18 | 天津市联合环保工程设计有限公司 | A kind of high saliferous difficult degradation saccharin industrial wastewater waste gas processing method and device |
| CN108298619A (en) * | 2018-03-02 | 2018-07-20 | 徐奎元 | Industrial sewage process method |
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