CN102701505A - Equipment for treating H-acid production wastewater - Google Patents
Equipment for treating H-acid production wastewater Download PDFInfo
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- CN102701505A CN102701505A CN2012102011251A CN201210201125A CN102701505A CN 102701505 A CN102701505 A CN 102701505A CN 2012102011251 A CN2012102011251 A CN 2012102011251A CN 201210201125 A CN201210201125 A CN 201210201125A CN 102701505 A CN102701505 A CN 102701505A
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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Abstract
The invention relates to equipment for treating H-acid production wastewater. The equipment comprises a neutralization pot, an elevated tank, an evaporation pot, a crystallization tank and a centrifuge which are connected in sequence, wherein a material transferring pump for adding roughly treated feed liquid into the elevated tank is arranged between the neutralization pot and the elevated tank. A new road is opened, water is evaporated in a distillation mode by skillfully utilizing the characteristic that organic matters and the water in the wastewater have different boiling points, the organic matters and inorganic salts are separated, sticky colloidal organic matters and solid inorganic salts are separated in a centrifuging mode, the organic matters are combusted or further separated, the solid inorganic salts containing a large amount of ammonium sulfate can be directly used as a fertilizer, and waste is turned into wealth, so that the long-term technical problem that H-acid waste liquid is difficult to treat is solved.
Description
Technical field
The present invention relates to H-acid producing waste water treatment facility.
Background technology
H-acid has another name called 1-amino-8-naphthol-3, the 6-disulfonic acid, and clear crystal is a kind of important dyestuff intermediate, is mainly used in to produce acidity, reactive dyestuffs and azoic dyestuff, also can be used for pharmaceutical industry.Be slightly soluble in cold water and be soluble in hot water, be dissolved in the basic solns such as soda ash and caustic soda.In the acid out operation, add sulfuric acid (or hydrochloric acid) and separate out the single sodium salt of H-acid, the waste liquid after the filtration belongs to the organic waste water of typical high density, high chroma, high bio-toxicity.
Mainly containing organic pollutants in the waste liquid is naphthalene and naphthalene derivatives, and main inorganics is sodium sulfate and ammonium salt, and comparing other, to contain naphthalene be organic waste water, has its singularity:
(1) pollutant component is complicated, and concentration is high, and the H-acid mother liquor of discharging in process of production contains a large amount of Cai's various substitutive derivatives, and COD is up to several ten thousand mg/L, and complicated component contains a large amount of naphthalene derivativess;
(2) acid strong, pH is greatly between 1～2;
(3) colourity is dark, and about 1 * 10
5About, generally be pale brown to chocolate;
(4) toxicity is big, and H acid belongs to condensed-nuclei aromatics, has the intensive bio-toxicity, and waste water is if not treated direct discharging with serious environment pollution, also has very big harm to human body;
(5) readily biodegradable not, because the delocalized conjugated that naphthalene nucleus is made up of 10 carbon atoms, the structure quite stable is difficult to degrade.The BOD of most of waste water in this type waste water
5/ COD is extremely low, and biodegradability is poor, and toxic to mikrobe, is difficult to handle with general biochemical method.
Method about this type of production wastewater treatment; Mainly contained wet type (catalysis) oxidation style, photocatalytic oxidation, extraction process (comprising liquid film extraction method, complexing abstraction) etc. at present, these methods exist complex equipments, special substance difficult quality guarantee, medicament costliness, operational condition harsh (like high temperature, high pressure etc.) respectively, energy consumption is high and secondary pollution problems is arranged.
Singularity and difficulty to the processing of H-acid producing waste water; Those skilled in the art have also carried out a series of exploration; For example: one Chinese patent application numbers 200710057544.1; Provide the mode of " utilizing ion exchange resin absorption " in the patent name " a kind of treatment process of H-acid producing waste water "; China's application number is 200710057626.6, and what provide in the patent name " 1-amino-8-naphthol-3, the improvement and the recoverying and utilizing method thereof of 6-disulfonic acid factory effluent " is the mode of " utilizing ion exchange resin absorption " equally; One Chinese patent application numbers 200510037697.0, patent name is " purification of H acid producing waste water and the method for resource recycling ", provides the mode of " utilization is filled with the macroporous resin absorption tower and adsorbs "; More than utilize the mode of resin absorption to operate more complicated, difficult control node.One Chinese patent application numbers 200710051622.7, patent name " adds sodium-chlor method H Acid from Wastewater ", provides the mode of " add sodium-chlor to a certain degree, heating makes the hydrochloric acid volatilization, and it is sour with T to extract H acid "; Heating makes hydrochloric acid from the liquid that contains sodium salt, evaporate the higher temperature of needs under this method, also can't widespread use in industrial production.One Chinese patent application numbers 200910234684.0; Patent name " a kind of sunshine/electricity-Fent on chemical treatment method of dyestuff intermediate H acid waste water "; Provide the mode of " utilizing solar electrical energy generation; then to the waste liquid electrolysis ", this mode needs special solar power plant, and cost is than higher.
To sum up can know; Those skilled in the art rest on the stage how general's organism wherein decomposes or adsorbs to the processing thinking of H-acid waste liquid always; Realize organism is decomposed then and must under the situation of high temperature, high pressure, catalyzer even energising, carry out; Realize that absorption then must be equipped with large-scale exchange resin adsorption tower, and the resin in the tower to be changed the cycle.Therefore, the H-acid waste liquid is treated as the long-standing technical barrier in this area.
Summary of the invention
Technical problem to be solved by this invention provides H-acid producing waste water treatment facility; It provides a kind of new approaches of the H-of processing acid producing waste water; The treating processes advantages of simple, and can improve the efficient and the quality of wastewater treatment, thus eliminate defective in the above-mentioned background technology.
For solving the problems of the technologies described above, technical scheme of the present invention is:
H-acid producing waste water treatment process comprises the steps:
S1. in waste liquid, add ammoniacal liquor to pH value 4～5, obtain the bulk processing feed liquid;
S2. the bulk processing feed liquid that step S1 is obtained heats up and evaporates wherein moisture, is evaporated to solid-to-liquid ratio and reaches at 25%～35% o'clock, obtains the supersaturation feed liquid;
S3. the supersaturation feed liquid cooling that step S2 is obtained, crystallization obtains mixed liquor;
S4. the mixed liquor that step S3 is obtained is centrifugal, obtains inorganic salt solid fertilizer and organism centrifugate.
As a kind of improvement, among the said step S 1, adopt the speed of 20～25 commentaries on classics/min to stir in the process of adding ammoniacal liquor.Preferred 23 commentaries on classics/min.
As a kind of further improvement, among the said step S1, ammoniacal liquor at the uniform velocity adds.In the process that at the uniform velocity adds, constantly detect feed liquid, excessive to prevent that ammoniacal liquor from adding.
As a kind of improvement, among the said step S2, begin decompression when being warming up to 85～95 ℃, continue to be warming up to boiling simultaneously.Preferably in the time of 90 ℃, begin decompression.Generally speaking, be decompressed to 75～95 kPas and get final product, need consider the tolerance of equipment simultaneously.The main purpose of decompression is to reduce the boiling point of water, thereby reduces the consumption of heating steam; Simultaneously also can improve water distillatory speed and effect.
As a kind of further improvement, among the said step S2, adopt the mode of continuous still battery.That is: keep the influx of bulk processing feed liquid in the unit time consistent with steam output.
As a kind of further improvement, among the said step S2, the bulk processing feed liquid is evaporated to solid-to-liquid ratio reaches 30%.Solid-to-liquid ratio refers to the weight ratio of solid and liquid herein.When measuring solid-to-liquid ratio, generally be to get feed liquid at random, and feed liquid is filtered the proportion of measure solid and liquid.
As a kind of improvement, among the said step S3, the supersaturation feed liquid under agitation is cooled to 80 ℃ naturally.
The invention provides H-acid producing waste water treatment facility; Comprise in order being used for of connecting in waste liquid, add ammoniacal liquor with the neutralization pot, the header tank that is used for the said bulk processing feed liquid of temporarily stored that obtain the bulk processing feed liquid, the distillation bulk processing feed liquid that is used to heat up with the evaporating pan that obtains the supersaturation feed liquid, be used for the said supersaturation feed liquid of crystallization with crystallizer tank that obtains mixed liquor and the whizzer that is used for the said mixed liquor of spinning, be provided with the transfering material pump that is used for the bulk processing feed liquid is squeezed into said header tank between said neutralization pot and the header tank.
As a kind of improvement, said neutralization pot is provided with whipping appts and ammonia flow rate valve.
As a kind of further improvement, said whipping appts comprises stirring rake and variable-frequency motor, and said variable-frequency motor power connects said stirring rake.
As a kind of improvement, said evaporating pan is provided with the decompression blower fan.
As a kind of further improvement, the inside and outside heating steam coil pipe that is provided with of the kettle of said evaporating pan.
As a kind of further improvement, said evaporating pan is provided with the visor that is used to observe the inner liquid level of kettle.
Among the step S4, the staple of the inorganic salt solid fertilizer that obtains after mixed liquor is centrifugal is an ammonium sulfate, also contains a spot of sodium sulfate in addition; And the organism centrifugate that obtains is the heavy-gravity gelatinoid, wherein mainly contains organism.Directly put in storage after the discharging of inorganic salt solid fertilizer, organism centrifugate then can be squeezed into header tank and carry out circulating and evaporating, also can be with its burn processing or further separating treatment.
Owing to adopted technique scheme, the invention has the beneficial effects as follows:
H-acid producing waste water treatment process provided by the invention; Abandoned the conventional thought that the organism in the waste water is decomposed or adsorbs; Need severe condition such as high pressure, high temperature, catalyzer when organism decomposes thereby also just changed, need large-scale resin absorption tower and constantly change resin and the high defective of cost of investment during organism absorption.The present invention is off the beaten track; Utilize the interior organism of waste water different cleverly, adopt the distillatory mode that moisture evaporation is gone out, wherein organism and inorganic salts are separated with water boiling point; And adopt the centrifugal mode that the gluey organism of heavy-gravity is separated with the solid inorganic salt; Organism carries out burn processing or further separating treatment, and the solid inorganic salt can directly be used as fertilizer because wherein contain a large amount of ammonium sulfate; Turn waste into wealth, be difficult to handle this secular technical barrier thereby solved the H-acid waste liquid.
H-acid producing waste water treatment process provided by the invention in the process that adds ammoniacal liquor, adopt the speed of 20～25 commentaries on classics/min that waste liquid is stirred, and ammoniacal liquor at the uniform velocity adds; Wherein, The stir speed (S.S.) of preferred 23 commentaries on classics/min, under this stir speed (S.S.), waste water reaches best to the assimilation effect of ammoniacal liquor; Thereby at the uniform velocity add fashionable when ammoniacal liquor; Be not easy to occur the excessive phenomenon of ammoniacal liquor, can guarantee that T-acid, the H-in the waste water is sour, W-acid etc. is by effectively neutralization, for next step distillation lays the foundation.
The present invention improves the distillation rate of waste liquid when reducing steam consumption; Adopt the mode of underpressure distillation, generally with being decompressed to 75～95 kPas in the kettle, the boiling point of water is reduced under this pressure; In the time of a little higher than 90 ℃; Moisture in the waste water can evaporate in a large number, and because organism boiling point higher (for example naphthalene depress at standard atmosphere be 217.9 ℃) can not evaporate at 90 ℃, inorganic salts wherein also can be stayed along with organism; The present invention has simultaneously adopted the mode of continuous still battery, has guaranteed the continuity of producing, and has improved waste water treatment efficiency greatly, because continuous still battery, temperature parameter and pressure intensity parameter controllability are stronger, is more conducive to industry practice and uses.
The present invention need be evaporated to solid-to-liquid ratio with the bulk processing feed liquid and reach 25%～35%, preferably 30% goes crystallization treatment again, because the waste liquid under this solid-to-liquid ratio is under 90 ℃ temperature; Fixedly crystallization occurred, and after transferring to crystallizer tank and being cooled to 80 ℃ naturally, the inorganic salts crystallization in the waste liquid is complete; And in reality, find, under this solid-to-liquid ratio, though solid crystal occurred; But can not be attached on the inwall or heating steam coil pipe of kettle, have the unforeseen effect of those skilled in the art.
The invention provides H-acid producing waste water treatment facility, be applied in the above-mentioned method of wastewater treatment, this device structure is simple, can accomplish the processing to the H-acid producing waste water, is different from traditional equipment that organism is decomposed or adsorbs fully.
Among the present invention, the neutralization pot is provided with whipping appts and ammonia flow rate valve, and said whipping appts comprises stirring rake and variable-frequency motor; Said variable-frequency motor power connects said stirring rake; Based on said structure, variable-frequency motor can effectively be controlled the stirring velocity of stirring rake, thereby obtains the required best stir speed (S.S.) of technology; And the ammonia flow rate valve can be controlled the adding speed of ammoniacal liquor, and is convenient reliable.
Among the present invention, evaporating pan is provided with the decompression blower fan, and the inside and outside heating steam coil pipe that is provided with of the kettle of said evaporating pan, said evaporating pan are provided with the visor that is used to observe the inner liquid level of kettle.Based on said structure, evaporating pan can be realized underpressure distillation, and simultaneously, inside and outside heating steam coil pipe can effectively be accelerated the distillation rate of the inner feed liquid of evaporating pan kettle, and the inner liquid level of the convenient observation of visor kettle is realized continuous still battery with the control evaporating pan.
Description of drawings
Accompanying drawing is an equipment flowsheet synoptic diagram of the present invention;
Among the figure: 1. in and pot, 2. header tank, 3. evaporating pan, 4. crystallizer tank, 5. whizzer, 6. transfering material pump, 7. hold-up vessel; 11. stirring rake, 12. ammonia flow rate valves, 13. variable-frequency motors, 31. kettlies, 32. decompression blower fans, 33. heating steam coil pipes, 34. visors.
Embodiment
For technique means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with specific embodiment, further set forth the present invention.
Shown in accompanying drawing; H-acid producing waste water treatment facility comprises the neutralization pot 1, header tank 2, evaporating pan 3, crystallizer tank 4 and the whizzer 5 that connect in order, between said neutralization pot 1 and the header tank 2 transfering material pump 6 is set; Said neutralization pot 1 is provided with stirring rake 11 and ammonia flow rate valve 12; Stirring rake 11 power are connected with variable-frequency motor 13, and variable-frequency motor 13 can effectively be controlled the stirring velocity of stirring rake 11, thereby obtain the required best stir speed (S.S.) of technology; And ammonia flow rate valve 12 can be controlled the adding speed of ammoniacal liquor, and is convenient reliable; Said evaporating pan 3 comprises kettle 31, and kettle 31 is provided with decompression blower fan 32, the kettle 31 inside and outside heating steam coil pipes 33 that are provided with; Simultaneously, also be provided with the visor 34 that is used to observe kettle 31 inner liquid levels, the centrifugate outlet of whizzer 5 is provided with the pipeline that connects header tank 2; Decompression blower fan 32 can be extracted kettle 31 steam inside out and make it to form negative pressure; Thereby evaporating pan 3 can realize underpressure distillation, and simultaneously, inside and outside heating steam coil pipe 33 can effectively be accelerated the distillation rate of evaporating pan kettle 31 inner feed liquids; And the liquid level of visor 34 convenient observation kettlies 31 inside is realized continuous still batterys with control evaporating pan 3.
The H-acid producing waste water at first gets into neutralization pot 1 from hold-up vessel 7 when handling, in neutralization pot 1, add ammoniacal liquor while stirring and neutralize, and utilizes transfering material pump 6 to squeeze into header tank 2 then and temporarily stores; Feed liquid gets into evaporating pans 3 from header tank 2 and carries out continuous underpressure distillation, treats to transfer to crystallizer tank 4 intercrystallines after feed liquid reaches the solid-to-liquid ratio of regulation, utilizes whizzer 5 to carry out centrifugal treating the feed liquid after the crystallization at last.
Embodiment 1
H-acid producing waste water treatment process comprises the steps:
S1. the H-acid waste liquid is squeezed in the neutralization pot 1; Start and stir, the rotating speed of stirring rake 11 is controlled at 23 commentaries on classics/min, at the uniform velocity adds ammoniacal liquor; During adding ammoniacal liquor, constantly utilize pH detection paper feed liquid; Excessive to prevent that ammoniacal liquor from adding, finally obtain the pH value and be 4 bulk processing feed liquid, it is for use to utilize transfering material pump 6 to squeeze into header tank 2 the bulk processing feed liquid;
S2. the bulk processing feed liquid that step S1 is obtained joins the evaporating pan 3 from header tank 2, and the liquid levels in the control kettle 31 are higher than inner heating steam coil pipe 33 about 15cm, opens the inside and outside heating steam coil pipe 33 of kettle 31 simultaneously; When temperature rises to 90 ℃, open decompression blower fan 32, pressure is at 80 kPas in the control kettle 31; Continue to be warming up to the feed liquid boiling, observe liquid level, open header tank 2 reinforced valves simultaneously through visor 34; Control flow well; Keep the influx of bulk processing feed liquid in the unit time consistent, keep the liquid level of kettle 31 constant, realize continuous still battery through flow with steam output; In this process, need the random acquisition feed liquid, and feed liquid is filtered, the proportion of measure solid and liquid obtains solid-to-liquid ratio, and solid-to-liquid ratio reaches at 25%～35% o'clock, obtains the supersaturation feed liquid;
S3. the supersaturation feed liquid that step S2 is obtained is transferred in the crystallizer tank 4, and when stirring nature then and being cooled to 80 ℃, crystallization obtains mixed liquor;
S4. the mixed liquor that step S3 is obtained is placed on whizzer 5 to be separated, and the inorganic salt solid fertilizer staple that wherein obtains is an ammonium sulfate, also contains a spot of sodium sulfate in addition; And the organism centrifugate that obtains is the heavy-gravity gelatinoid, wherein mainly contains organism.
With the discharging of inorganic salt solid fertilizer, encapsulation is put in storage at last; Organism centrifugate is squeezed into header tank 2 and is carried out circulating and evaporating.
Embodiment 2
H-acid producing waste water treatment process comprises the steps:
S1. the H-acid waste liquid is squeezed in the neutralization pot 1; Start and stir, the rotating speed of stirring rake 11 is controlled at 20 commentaries on classics/min, at the uniform velocity adds ammoniacal liquor; During adding ammoniacal liquor, constantly utilize pH detection paper feed liquid; Excessive to prevent that ammoniacal liquor from adding, finally obtain the pH value and be 4 bulk processing feed liquid, it is for use to utilize transfering material pump 6 to squeeze into header tank 2 the bulk processing feed liquid;
S2. the bulk processing feed liquid that step S1 is obtained joins the evaporating pan 3 from header tank 2, and the liquid levels in the control kettle 31 are higher than inner heating steam coil pipe 33 about 15cm, opens the inside and outside heating steam coil pipe 33 of kettle 31 simultaneously; When temperature rises to 85 ℃, open decompression blower fan 32, pressure is at 75 kPas in the control kettle 31; Continue to be warming up to the feed liquid boiling, observe liquid level, open header tank 2 reinforced valves simultaneously through visor 34; Control flow well; Keep the influx of bulk processing feed liquid in the unit time consistent, keep the liquid level of kettle 31 constant, realize continuous still battery through flow with steam output; In this process, need the random acquisition feed liquid, and feed liquid is filtered, the proportion of measure solid and liquid obtains solid-to-liquid ratio, and solid-to-liquid ratio reaches at 25%～35% o'clock, obtains the supersaturation feed liquid;
S3. the supersaturation feed liquid that step S2 is obtained is transferred in the crystallizer tank 4, and when stirring nature then and being cooled to 80 ℃, crystallization obtains mixed liquor;
S4. the mixed liquor that step S 3 is obtained is placed on whizzer 5 to be separated, and the inorganic salt solid fertilizer staple that wherein obtains is an ammonium sulfate, also contains a spot of sodium sulfate in addition; And the organism centrifugate that obtains is the heavy-gravity gelatinoid, wherein mainly contains organism.
With the discharging of inorganic salt solid fertilizer, encapsulation is put in storage at last; Organism centrifugate is carried out burn processing.
Embodiment 3
H-acid producing waste water treatment process comprises the steps:
S1. the H-acid waste liquid is squeezed in the neutralization pot 1; Start and stir, the rotating speed of stirring rake 11 is controlled at 25 commentaries on classics/min, at the uniform velocity adds ammoniacal liquor; During adding ammoniacal liquor, constantly utilize pH detection paper feed liquid; Excessive to prevent that ammoniacal liquor from adding, finally obtain the pH value and be 5 bulk processing feed liquid, it is for use to utilize transfering material pump 6 to squeeze into header tank 2 the bulk processing feed liquid;
S2. the bulk processing feed liquid that step S1 is obtained joins the evaporating pan 3 from header tank 2, and the liquid levels in the control kettle 31 are higher than inner heating steam coil pipe 33 about 15cm, opens the inside and outside heating steam coil pipe 33 of kettle 31 simultaneously; When temperature rises to 95 ℃, open decompression blower fan 32, pressure is at 95 kPas in the control kettle 31; Continue to be warming up to the feed liquid boiling, observe liquid level, open header tank 2 reinforced valves simultaneously through visor 34; Control flow well; Keep the influx of bulk processing feed liquid in the unit time consistent, keep the liquid level of kettle 31 constant, realize continuous still battery through flow with steam output; In this process, need the random acquisition feed liquid, and feed liquid is filtered, the proportion of measure solid and liquid obtains solid-to-liquid ratio, and solid-to-liquid ratio reaches at 25%～35% o'clock, obtains the supersaturation feed liquid;
S3. the supersaturation feed liquid that step S2 is obtained is transferred in the crystallizer tank 4, and when stirring nature then and being cooled to 80 ℃, crystallization obtains mixed liquor;
S4. the mixed liquor that step S3 is obtained is placed on whizzer 5 to be separated, and the inorganic salt solid fertilizer staple that wherein obtains is an ammonium sulfate, also contains a spot of sodium sulfate in addition; And the organism centrifugate that obtains is the heavy-gravity gelatinoid, wherein mainly contains organism.
With the discharging of inorganic salt solid fertilizer, encapsulation is put in storage at last; Organism centrifugate is carried out further separating treatment.
The present invention is not limited to above-mentioned embodiment, and all are based on technical conceive of the present invention, and the structural improvement of having done all falls among protection scope of the present invention.
Claims (6)
1.H-the acid producing waste water treatment facility is characterized in that: comprise
Neutralization pot, said neutralization pot are used in waste liquid, adding ammoniacal liquor to obtain the bulk processing feed liquid;
Header tank, said header tank are used for the said bulk processing feed liquid of temporarily stored;
Evaporating pan, said evaporating pan are used for heating up the said bulk processing feed liquid of distillation to obtain the supersaturation feed liquid;
Crystallizer tank, said crystallizer tank are used for the said supersaturation feed liquid of crystallization to obtain mixed liquor;
Whizzer, said whizzer are used for the spinning mixed liquor to obtain inorganic salt solid waste and organism centrifugate;
Said neutralization pot, header tank, evaporating pan, crystallizer tank are connected with whizzer in order, and are provided with the transfering material pump that is used for said bulk processing feed liquid is squeezed into said header tank between neutralization pot and the header tank.
2. H-acid producing waste water treatment facility as claimed in claim 1 is characterized in that: said neutralization pot is provided with
Whipping appts and ammonia flow rate valve are arranged.
3. H-acid producing waste water treatment facility as claimed in claim 2, it is characterized in that: said whipping appts comprises stirring rake and variable-frequency motor, said variable-frequency motor power connects said stirring rake.
4. H-acid producing waste water treatment facility as claimed in claim 1, it is characterized in that: said evaporating pan is provided with the decompression blower fan.
5. H-acid producing waste water treatment facility as claimed in claim 1 is characterized in that: the inside and outside heating steam coil pipe that is provided with of the kettle of said evaporating pan.
6. H-acid producing waste water treatment facility as claimed in claim 1 is characterized in that: said evaporating pan is provided with the visor that is used to observe the inner liquid level of kettle.
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| CN2012102011251A CN102701505A (en) | 2012-06-18 | 2012-06-18 | Equipment for treating H-acid production wastewater |
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| CN2012102011251A CN102701505A (en) | 2012-06-18 | 2012-06-18 | Equipment for treating H-acid production wastewater |
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| CN105183026A (en) * | 2015-08-26 | 2015-12-23 | 宁波金和锂电材料有限公司 | Automatic adjustment system for adjusting pH value of crystallization reaction |
| CN108067010A (en) * | 2017-12-22 | 2018-05-25 | 南京工业大学 | Recrystallization device for efficient purification and reuse of salt slag after pesticide wastewater treatment and separation |
| CN110694349A (en) * | 2019-11-20 | 2020-01-17 | 徐州市国栋生化装备有限公司 | Printing and dyeing wastewater environment-friendly treatment device and use method thereof |
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| CN108067010A (en) * | 2017-12-22 | 2018-05-25 | 南京工业大学 | Recrystallization device for efficient purification and reuse of salt slag after pesticide wastewater treatment and separation |
| CN110694349A (en) * | 2019-11-20 | 2020-01-17 | 徐州市国栋生化装备有限公司 | Printing and dyeing wastewater environment-friendly treatment device and use method thereof |
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Application publication date: 20121003 |