CN101177312A - Clean type industrial circulating water processing device and method - Google Patents
Clean type industrial circulating water processing device and method Download PDFInfo
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- CN101177312A CN101177312A CNA2007101620730A CN200710162073A CN101177312A CN 101177312 A CN101177312 A CN 101177312A CN A2007101620730 A CNA2007101620730 A CN A2007101620730A CN 200710162073 A CN200710162073 A CN 200710162073A CN 101177312 A CN101177312 A CN 101177312A
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- industrial sewage
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Abstract
The invention discloses a device and method for clean type industrial circulation water treatment, which is characterized in that the sewage in an acidic industrial sewage sump (1) is pumped to a cation resin bed (4) and then returned to a dedusting equipment (7) of a boiler; the sewage in an alkaline industrial sewage sump (2) is pumped to an anion resin bed (5) and then returned to the dedusting equipment (7) of the boiler; the raw water is pumped to the industrial circulation water treatment equipment passing through a prepositive bed (3), the cation resin bed (4) and the anion resin bed (5), the backwash replaced water of the industrial circulation water treatment equipment (6) is also pumped to the dedusting equipment (7) of the boiler. The invention has the advantages that the resources on every production link can be comprehensively configured, on the one hand, the consumption of chemicals during treating the industrial circulation water can be reduced, the water treatment costs and the secondary pollution can be decreased, on the other hand, the circulation water can be repeatedly used for reducing the discharge of industrial sewage and saving water resources.
Description
Technical field
The present invention relates to industrial sewage processing unit and method, be specifically related to a kind of clean type industrial circulating water processing device and method.
Background technology
Industrial production not only will be created the wealth, and also must take into account environment, and the chemical enterprise water consumption is big, and the waste water environmental pollution influence of discharging is bigger.The recirculated water of the most of use of Chemical Manufacture at present, former water replenishes as recirculated water after simple process, outside the scarcely treated directly discharging of the recirculated water backwash replacing water factory.
The important content that industrial circulating water uses is the fouling and the etching problem of control heat-exchange equipment.The scale effect heat exchange efficiency, energy consumption is big, influences technological operation, and corrosion can be shortened service life of equipment, and has potential safety hazard.In order to prevent fouling and corrosion, widely popularize phosphorus line formulation Water Treatment technology in recent years, to reach control fouling and corrosive effect.Like this, it is Scale inhibitors that circulating water device all need add quantitative phosphorus, and keeps working cycle control total phosphorus at 4.0-5.5mg/L, along with Scale inhibitors lost efficacy, the conversion of organophosphorus also need be controlled cycles of concentration at 3-5, promptly mends the recirculated water that the former water of 3-5 ton will discharge 1 ton of phosphorous 4.0-5.5mg/L.
Cycles of concentration is the pass key control unalterable quota of recirculated water utilisation technology, and cycles of concentration is subjected to replenish water quality and recirculated cooling water matter standard restricts.Because the most of water technology of China has adopted phosphorus system (containing poly-phosphorus) prescription, thereby in fact cycles of concentration has become a recirculated water important index in service.Because there is the problem of hydrolysis in the organophosphorus medicament, the complex status of it and calcium ions and magnesium ions is present among the dynamic change at any time, in the recirculated water concentration process, this complexation equilibrium index is constantly broken, and the pH value of water raises, and basicity increases, all can have calcium phosphate scale or problem phosphorous, the zinc dirt, the outlet that addresses this problem will constantly be discharged a part of recirculated water exactly, and additional fresh water and medicament.
Cycles of concentration in fact is that control phosphorus is the residence time of medicament in circulating water system, a part of waste water of discharging also must contain the beneficial agents that does not lose function as yet, these phosphorus-containing wastewaters are not only wasted great amount of water resources, and harmful to environment, be the important factor that waters eutrophication, red tide take place frequently.
The method of control cycles of concentration, though effectively controlled phosphorus is the time that medicament stops in recirculated water, can not surpass the time that its hydrolysis was lost efficacy, generally be no more than 50 hours, can solve calcium phosphate scale and fouling problem, recirculated water is " exhaling the old and inhale the new " constantly, organophosphorus concentration remains on 3-5ppm even higher in the recirculated water, keep as clear as crystal, but its environmental pollution that brings and waste water resource problem must cause concern.The unreasonable use of cycles of concentration notion has caused the waste of water resources, and cost increases, and for example the recirculated cooling water discharge water is used for other water system and reuses, and seems comprehensive utilization, and is real in waste, because it is medicament that this draining contains a large amount of phosphorus, costs an arm and a leg.
Phosphorus is that the use of medicament exists the problem that can not be ignored: 1. phosphorus is nutritive substance, promoted the breeding aggravation of bacterium algae microorganism in the water, chlorination and add that all kinds of Biocidal algae-killing agents become must means, a large amount of dischargings phosphorous and that contain Biocidal algae-killing agent waste water have increased the weight of environment water pollution and eutrophication degree, have become the Hazardous problem; 2. phosphorus line formulation medicament residence time in circular water treating system restricted, be hydrolyzed into calcium phosphate scale, the recirculated water cycles of concentration is low, is unfavorable for water saving; 3. chlorion is a corrosion factor, also is the formidable enemy of influence water saving, does not still have the method for easy, cheap removal chlorion at present.
Comprehensive chemical enterprise exists more or less states down similar common problem: 1. during pyritous boiler smoke liquid phase method desulfurization depositing dust, high-temperature flue gas a certain amount of dedusting water of can vaporizing, dedusting water device needs a large amount of former water of continuous supplementation, to keep the water balance of cleaning apparatus; 2. the hard water that contains calcium, magnesium ion is during by Zeo-karb, [the H in the calcium in the water, magnesium ion and the resin
+] ion exchanges the [HCO during by cloudy bed ion exchange resin in the water
3 2-], [CO
3 2-], [SO
4 2-] wait negatively charged ion and the [OH of tree in referring to
-] exchange; [H in resin
+], [OH
-] ion is by after the exchange fully, just must carry out reducing/regenerating to the resin that this ion is state of saturation, to recover its switching performance; For a long time, used regenerator is a technical hydrochloric acid when regenerating after the resin in the positive bed ion exchanger lost efficacy, and uses industrial sodium hydroxide to regenerate resin regeneration expense height after cloudy bed resin loses efficacy; 3. in the nitric acid production process, exist the phlegma that contains 3%～5% nitric acid, promptly useless rare magnesium nitrate tail water is bigger source of pollution, must realize neutralization back up to standard discharging, need build outside the big neutralization tank, also will consume soda ash, environmental protection treatment expense height; 4. exist 8TT-20TT weak ammonia environmental disposal problem in the production of synthetic ammonia equally.
Summary of the invention
The objective of the invention is to: a kind of clean type industrial circulating water processing device and method are provided, resource on each production link of integrated configuration our unit, the usage quantity of the chemical when reducing the industrial cycle water treatment on the one hand, reduce wastewater treatment expense and secondary pollution, allow recirculated water continue to use on the other hand, reduce the industrial sewage discharging, the conserve water resource.
Technical solution of the present invention is: this circulating water treatment device is made up of acid or alkaline industrial sewage pond, preposition bed, zwitterion resin bed, industrial cycle water treating equipment, boiler dust removal equipment, and former water is communicated with preposition bed, sun bed, cloudy bed, circulating water treatment device and boiler dust removal equipment successively through pipeline; Acid industrial sewage comes together in acid industrial sewage pond, and acid industrial sewage pond is communicated with the resin cation (R.C.) bed through pipeline, is back to boiler dust removal equipment again; The alkalescence industrial sewage comes together in alkaline industrial sewage pond, and alkaline industrial sewage pond is communicated with the resin anion(R.A) bed through pipeline, is back to boiler dust removal equipment again.
A kind of clean industrial cycle water treatment method of the present invention is made up of the following aspects: former water is the pumping boiler dust removal equipment after preposition bed, resin cation (R.C.) bed, resin anion(R.A) bed, industrial cycle water treating equipment are handled; Acid industrial sewage comes together in acid industrial sewage pond, and pumping resin cation (R.C.) bed is back to boiler dust removal equipment again; The alkalescence industrial sewage comes together in alkaline industrial sewage pond, and pumping resin anion(R.A) bed is back to boiler dust removal equipment again.
In a kind of clean type industrial circulating water processing device of the present invention, preposition bed and resin cation (R.C.) bed are the macrobead highly acidic resin bed of state of saturation for ion; The resin anion(R.A) bed is the macrobead basic resin bed of state of saturation for ion.
In a kind of clean industrial cycle water treatment method of the present invention, acid industrial sewage is the acid industrial sewage in nitric acid, hydrochloric acid, the sulphuric acid process.
In a kind of clean industrial cycle water treatment method of the present invention, alkaline industrial sewage is the alkaline industrial sewage in the production of synthetic ammonia.
The present invention has the following advantages: 1. industrial sewage is handled the back recycle, and the outer draining in the Industrial processes is effectively controlled, and realizes the production that cleans of industrial sewage zero release; 2. need not add phosphorus be Scale inhibitors to the industrial cycle water treating equipment, only needs to add a small amount of inhibiter and sterilant, reduces the water treatment agent expense, reduces the secondary pollution that water treatment procedure produces; 3. the acid or alkaline industrial sewage that produces in the production process is as the resin regeneration agent, and comprehensive utilization industrial waste acid or waste lye reduce processing costs; 4. the former water usage quantity of watering equipment reduces the conserve water resource.
Description of drawings
Fig. 1 is the schematic flow sheet of former industrial sewage processing unit and method.
Fig. 2 is the schematic flow sheet of cyclic processing device of the present invention and method.
Among the figure: 1. acid industrial sewage pond, 2. alkaline industrial sewage pond, 3. preposition bed, 4. resin cation (R.C.) bed, 5. resin anion(R.A) bed, 6. industrial cycle water treating equipment, 7. boiler dust removal equipment, 8. pipeline.
Embodiment
As shown in Figure 2, this circulating water treatment device is communicated with through pipeline 8 by acid or alkaline industrial sewage pond 1,2, preposition bed 3, zwitterion resin bed 5,4, industrial cycle water treating equipment 6, boiler dust removal equipment 7 and forms, sour water pumping resin cation (R.C.) bed 4 in the acid industrial sewage pond 1 is handled the acid reclaim liquid that obtains and is back to boiler dust removal equipment 7 uses again; Alkaline sewage pumping resin anion(R.A) bed 5 in the alkalescence industrial sewage pond 2 is handled the alkali reclaim liquid that obtains and is back to boiler dust removal equipment 7 uses again; Former water is handled half de-salted water that obtains through preposition bed 3 resin cation (R.C.) beds 4, resin anion(R.A) bed 5 and is sent into industrial cycle water treating equipment 6, and the backwash replacing water enters boiler dust removal equipment 7 and uses.
In a kind of clean type industrial circulating water processing device of the present invention, preposition bed 3 and resin cation (R.C.) bed 4 are the macrobead highly acidic resin bed of state of saturation for ion; Resin anion(R.A) bed 5 is the macrobead basic resin bed of state of saturation for ion.
In a kind of clean industrial cycle water treatment method of the present invention, acid industrial sewage is the acid industrial sewage that produces in nitric acid, hydrochloric acid, the sulphuric acid process.
In a kind of clean industrial cycle water treatment method of the present invention, alkaline industrial sewage is the alkaline industrial sewage that produces in the production of synthetic ammonia.
Example 1: the sour water in the nitric acid production process comes together in the acid industrial sewage pond, and the sour water in the acid industrial sewage pond 1 is handled the acid reclaim liquid that obtains through resin cation (R.C.) bed 4 and entered boiler dust removal equipment 7 uses; Alkaline sewage in the production of synthetic ammonia comes together in the alkaline industrial sewage pond 2, and the alkaline sewage in the alkaline industrial sewage pond 2 is handled the alkali reclaim liquid that obtains through resin anion(R.A) bed 5 and entered boiler dust removal equipment 7 uses; Former water is handled half de-salted water that obtains through preposition bed 3 resin cation (R.C.) beds 4, resin anion(R.A) bed 5 and is sent into industrial cycle water treating equipment 6, and the backwash replacing water enters boiler dust removal equipment 7 and uses.
Example 2: the sour water in the hydrochloric acid production process comes together in the acid industrial sewage pond, and the sour water in the acid industrial sewage pond 1 is handled the acid reclaim liquid that obtains through resin cation (R.C.) bed 4 and entered boiler dust removal equipment 7 uses; Alkaline sewage in the production of synthetic ammonia comes together in the alkaline industrial sewage pond 2, and the alkaline sewage in the alkaline industrial sewage pond 2 is handled the alkali reclaim liquid that obtains through resin anion(R.A) bed 5 and entered boiler dust removal equipment 7 uses; Former water is handled half de-salted water that obtains through preposition bed 3 resin cation (R.C.) beds 4, resin anion(R.A) bed 5 and is sent into industrial cycle water treating equipment 6, and the backwash replacing water enters boiler dust removal equipment 7 and uses.
Example 3: the sour water in the sulphuric acid process comes together in the acid industrial sewage pond, and the sour water in the acid industrial sewage pond 1 is handled the acid reclaim liquid that obtains through resin cation (R.C.) bed 4 and entered boiler dust removal equipment 7 uses; Alkaline sewage in the production of synthetic ammonia comes together in the alkaline industrial sewage pond 2, and the alkaline sewage in the alkaline industrial sewage pond 2 is handled the alkali reclaim liquid that obtains through resin anion(R.A) bed 5 and entered boiler dust removal equipment 7 uses; Former water is handled half de-salted water that obtains through preposition bed 3 resin cation (R.C.) beds 4, resin anion(R.A) bed 5 and is sent into industrial cycle water treating equipment 6, and the backwash replacing water enters boiler dust removal equipment 7 and uses.
Claims (5)
1. clean type industrial circulating water processing device, it is characterized in that: this circulating water treatment device is communicated with through pipeline (8) and is formed by acid or alkaline industrial sewage pond (1,2), preposition bed (3), zwitterion resin bed (5,4), industrial cycle water treating equipment (6), boiler dust removal equipment (7), acid industrial sewage pond (1) is communicated with resin cation (R.C.) bed (4) through pipeline (8), is back to boiler dust removal equipment (7) again; Be communicated with resin anion(R.A) bed (5) through pipeline (8) in the alkalescence industrial sewage pond (2), be back to boiler dust removal equipment (7) again; Former water is communicated with preposition bed (3), resin cation (R.C.) bed (4), resin anion(R.A) bed (5), industrial cycle water treating equipment (6) and boiler dust removal equipment (7) successively through pipe (8) road.
2. a kind of clean industrial cycle water treatment method according to claim 1 is characterized in that being made up of the following aspects: former water is pumping boiler dust removal equipment (7) after preposition bed (3), resin cation (R.C.) bed (4), resin anion(R.A) bed (5), industrial cycle water treating equipment (6) are handled; Acid industrial sewage comes together in acid industrial sewage pond (1), and pumping resin cation (R.C.) bed (4) is back to boiler dust removal equipment (7) again; The alkalescence industrial sewage comes together in alkaline industrial sewage pond (2), and pumping resin anion(R.A) bed (5) is back to boiler dust removal equipment (7) again.
3. a kind of clean type industrial circulating water processing device according to claim 1 is characterized in that: preposition bed (3), resin cation (R.C.) bed (4) are the macrobead highly acidic resin bed of state of saturation for ion; Resin anion(R.A) bed (5) is the macrobead basic resin bed of state of saturation for ion.
4. a kind of clean industrial cycle water treatment method according to claim 2 is characterized in that: acid industrial sewage is the acid industrial sewage that produces in nitric acid, hydrochloric acid, the sulphuric acid process.
5. a kind of clean industrial cycle water treatment method according to claim 2 is characterized in that: alkaline industrial sewage is the alkaline industrial sewage that produces in the production of synthetic ammonia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101620730A CN101177312A (en) | 2007-11-14 | 2007-11-14 | Clean type industrial circulating water processing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101620730A CN101177312A (en) | 2007-11-14 | 2007-11-14 | Clean type industrial circulating water processing device and method |
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| Publication Number | Publication Date |
|---|---|
| CN101177312A true CN101177312A (en) | 2008-05-14 |
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|---|---|---|---|
| CNA2007101620730A Pending CN101177312A (en) | 2007-11-14 | 2007-11-14 | Clean type industrial circulating water processing device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104211026A (en) * | 2014-08-20 | 2014-12-17 | 山东洪达化工有限公司 | Process for preparing concentrated nitric acid |
| CN106630048A (en) * | 2015-10-31 | 2017-05-10 | 上海梅山钢铁股份有限公司 | Method for comprehensive utilization of cold rolling acidic waste water |
-
2007
- 2007-11-14 CN CNA2007101620730A patent/CN101177312A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104211026A (en) * | 2014-08-20 | 2014-12-17 | 山东洪达化工有限公司 | Process for preparing concentrated nitric acid |
| CN104211026B (en) * | 2014-08-20 | 2016-08-10 | 山东洪达化工有限公司 | A kind of preparation technology of concentrated nitric acid |
| CN106630048A (en) * | 2015-10-31 | 2017-05-10 | 上海梅山钢铁股份有限公司 | Method for comprehensive utilization of cold rolling acidic waste water |
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Open date: 20080514 |