CN105217826A - A kind of cold rolling wastewater advanced treatment system and treatment process - Google Patents

A kind of cold rolling wastewater advanced treatment system and treatment process Download PDF

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CN105217826A
CN105217826A CN201410235419.5A CN201410235419A CN105217826A CN 105217826 A CN105217826 A CN 105217826A CN 201410235419 A CN201410235419 A CN 201410235419A CN 105217826 A CN105217826 A CN 105217826A
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water
bed
cold rolling
ultrafiltration
anion
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CN105217826B (en
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殷玫婕
吴昊
黄慧
张鸿飞
张宜莓
黄雪松
宋俊
宋艳丽
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Baowu Water Technology Co., Ltd
WUHAN HUALIN TECHNOLOGY Co.,Ltd.
Baoshan Iron and Steel Co Ltd
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WUHAN HUALIN TECHNOLOGY Co Ltd
Baoshan Iron and Steel Co Ltd
Baosteel Engineering and Technology Group Co Ltd
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Abstract

The invention provides a kind of cold rolling wastewater advanced treatment system, described treatment system connects plasma nanometer air-floating apparatus successively by pipeline, ultrafiltration circulating box, inorganic ultra-filtration device, ultrafiltration produce pond, Zeo-karb device, degassing tower, anionite-exchange resin device and finally produce water tank; Described inorganic ultra-filtration device is also connected with ultrafiltration rinse bath; Described plasma nanometer air-floating apparatus comprises low-temperature plasma generator, described low-temperature plasma generator is connected with dissolving by polyphasic flow water pump, described dissolving is connected with micro-nano air supporting release head, also arranges slag scraper on the top of described plasma nanometer air-floating apparatus.The present invention reduces a ton steel and consumes new water index, and treatment effect is stable, production run cost is low, operation runs easy, and effluent quality can reach service water water-quality guideline, reaches waste water recycling object.

Description

A kind of cold rolling wastewater advanced treatment system and treatment process
Technical field
The invention belongs to water-treatment technology field, be specifically related to the cold rolling waste discharge advanced treatment system of a kind of steel industry and treatment process.
Background technology
According to the specific requirement that country's " steel industry development policies " proposes new water index, before the year two thousand twenty, Steel Complex's ton steel consumes new water index is 6m 3/ t.Wherein, require that newly-built annual output 1000 ten thousand tons of steel and above large-lot producer's ton steel consume new water index≤4.0m 3/ t; Built annual output 1000 ten thousand tons of steel and above Steel Complex's ton steel consume new water index≤5.0m 3/ t.The development trend that Sewage advanced treatment and recycling will be following wastewater treatment.
Cold rolling wastewater is of a great variety, mainly comprises emulsifying liquid waste water, dense oily highly basic waste water, leveling precision waste water, thin oil weak base waste water, acid waste water, chromate waste water etc.Final waste discharge refers to the waste water of above-mentioned all waste water after the conventional processes process such as oil removing, pH adjustment, oxidation, reduction, coagulating sedimentation, biochemistry, waste water quality situation is as follows: CODcr20-60mg/L, specific conductivity 2500-6000us/cm, suspended substance 5-20mg/L, basicity 20-150mg/L, chlorion 600-1200mg/L, sulfate radical 100-600mg/L, calcium hardness 1000-3000mg/L, magnesium hardness 50-300mg/L, total iron 0.02-2mg/L.
The technique of advanced treatment is more, as ion-exchanger, electrodialysis (ED), electrodeionization interchanger (EDI), electro-adsorption (EST), reverse osmosis, nanofiltration, distillation etc.At present, Sewage advanced treatment engineering adopts reverse osmosis process mostly, but the requirement of reverse osmosis to water inlet is higher, requires that influent quality index is as follows: SDI≤5, COD≤30mg/L, oils≤0.1mg/L, chlorine residue≤0.1mg/L.And cold rolling final waste discharge water quality is comparatively complicated, is difficult to meet feed water by reverse osmosis requirement, thus affects the work-ing life of reverse osmosis membrane.In addition, final waste discharge Ca 2+, Mg 2+and silicon ion content is higher, easily causes reverse osmosis membrane dirt stifled serious, need frequent cleaning.Also part engineering is had to adopt electro-adsorption as advanced treatment process, as patent of invention " system for advanced treatment and recycle of cold rolling wastewater " (number of patent application: 200810207227.8), cold rolling wastewater adjusts through traditional pH, coagulation, air supporting, water outlet after Two-Stage Biochemical is through electro-adsorption deep desalting, water outlet CODcr≤70mg/L, total oil≤5mg/L, suspended substance≤5mg/L, specific conductivity≤1500mg/L.Though this Process for Effluent specific conductivity decreases, service water water quality requirement cannot be reached, can not as recirculating cooling water system moisturizing.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide a kind of cold rolling wastewater advanced treatment system and treatment process, reduce ton steel and consume new water index, treatment effect is stable, production run cost is low, operation runs easy, effluent quality can reach service water water-quality guideline, reaches waste water recycling object.
Technical solution of the present invention is as follows:
A kind of cold rolling wastewater advanced treatment system, described treatment system connects plasma nanometer air-floating apparatus successively by pipeline, ultrafiltration circulating box, inorganic ultra-filtration device, ultrafiltration produce pond, Zeo-karb device, degassing tower, anionite-exchange resin device and finally produce water tank; Described inorganic ultra-filtration device is also connected with ultrafiltration rinse bath; Described plasma nanometer air-floating apparatus comprises low-temperature plasma generator, described low-temperature plasma generator is connected with dissolving by polyphasic flow water pump, described dissolving is connected with micro-nano air supporting release head, also arranges slag scraper on the top of described plasma nanometer air-floating apparatus.
According to cold rolling wastewater advanced treatment system of the present invention, preferably, described Zeo-karb device comprises cation bed HL-1 and cation bed HL-2, and described cation bed HL-1 connects the import of the water outlet connection degassing tower of cation bed HL-2, cation bed HL-2; The outlet of described degassing tower connects anionite-exchange resin device, and described anionite-exchange resin device comprises anion bed HL-3 and anion bed HL-4, and described anion bed HL-3 connects anion bed HL-4, anion bed HL-4 outlet connection and finally produces water tank.
According to cold rolling wastewater advanced treatment system of the present invention, preferably, the built-in highly acidic resin for adsorbing calcium ion and magnesium ion of described cation bed HL-1, the built-in highly acidic resin for Liquidity limit of described cation bed HL-2; The built-in basic resin for adsorbing chloride ions of described anion bed HL-3, anion bed HL-4 is built-in for adsorpting anion basic resin.
According to cold rolling wastewater advanced treatment system of the present invention, preferably, the entrance A of described cation bed HL-1 is connected with the acid solution case for counter-current regeneration by acid solution transferpump, and the entrance A of described cation bed HL-1 is also connected with the pure water tank for counter-current regeneration by pure water transferpump; Described cation bed HL-1 is connected with cation bed HL-2, and for making described acid solution and pure water enter cation bed HL-2 after cation bed HL-1, the water outlet B of cation bed HL-2 is connected with exhausted bath box.
According to cold rolling wastewater advanced treatment system of the present invention, preferably, the entrance C of described anion bed HL-3 is connected with the lye tank for counter-current regeneration by alkali lye transferpump, and the entrance C of described anion bed HL-3 is also connected with the pure water tank for counter-current regeneration by pure water transferpump; Described anion bed HL-3 is connected with anion bed HL-4, and for making described alkali lye and pure water enter anion bed HL-4 after anion bed HL-3, the water outlet D of anion bed HL-4 is connected with exhausted bath box.
According to cold rolling wastewater advanced treatment system of the present invention, preferably, adopt ceramic-film tube in described inorganic ultra-filtration device, the ultrafiltration aperture of described ceramic-film tube is no more than 50nm.
A kind of cold rolling wastewater deep treatment method of the present invention, the cold rolling wastewater advanced treatment system described in described method application, comprises the steps:
(1) cold rolling wastewater enters plasma nanometer air-floating apparatus, the plasma generator of described plasma nanometer air-floating apparatus produces the gas with hydroxyl radical free radical and ozone, cold rolling wastewater is delivered to again by micro-nano air supporting release head, making hydroxyl radical free radical and ozone fully contact with Pollutants in Wastewater and oxidizing reaction occurs, is CO2, water or salt by pollutant oxidation, on the other hand the mixed gas of hydroxyl radical free radical and ozone and water suck in dissolving by polyphasic flow water pump by micro-nano air supporting release head, release head rotates under the impellent of High-Pressure Water, air pocket is cut into micro-nano bubble, impurity in waste water is brought to the water surface by micro-bubble and is scraped to scum silica frost groove by slag scraper, then waste water enters ultrafiltration circulating box, waste water in ultrafiltration circulating box is through ultrafiltration recycle pump, enter inorganic ultra-filtration device, described inorganic ultra-filtration device adopts large cross flow filter form, produce water and enter ultrafiltration product pond, the concentrate recirculation that inorganic ultra-filtration device produces is to ultrafiltration circulating box,
(2) waste water in ultrafiltration product pond is after entering the positively charged ion in Zeo-karb device removal waste water, enter degassing tower degassed in degassed, enter the negatively charged ion in anionite-exchange resin device removal waste water again, the waste water after removing negatively charged ion enters and finally produces water tank.
According to cold rolling wastewater deep treatment method of the present invention, preferably, in step (2) when Di goes out electrical conductivity of water >=400mg/L, need to ion exchange resin regeneration.
According to cold rolling wastewater deep treatment method of the present invention, preferably, the cation bed HL-1 of described Zeo-karb device and cation bed HL-2 adopts counter flow in series regeneration, the hydrochloric acid that the medicament that regeneration uses is 5%-10% for mass percentage content, and the consumption of regenerator is the resin volume of 2 times; Described anionite-exchange resin device anion bed HL-3 and anion bed HL-4 adopts counter flow in series regeneration, and the sodium hydroxide that the medicament that described regeneration uses is 5-10% for mass percentage content, the consumption of regenerator is the resin volume of 2 times.
According to cold rolling wastewater deep treatment method of the present invention, preferably, pond waste water is produced in the ultrafiltration that enters after step (1) process: total oil≤1.0mg/L, suspended substance≤10mg/L, CODcr≤30mg/L.
According to cold rolling wastewater deep treatment method of the present invention, described treatment system connects plasma nanometer air-floating apparatus successively by pipeline, ultrafiltration circulating box, inorganic ultra-filtration device, ultrafiltration produce pond, Zeo-karb device, degassing tower, anionite-exchange resin device and finally produce water tank; Described inorganic ultra-filtration device is also connected with ultrafiltration rinse bath; Described plasma nanometer air-floating apparatus comprises low-temperature plasma generator, described low-temperature plasma generator is connected with dissolving by polyphasic flow water pump, described dissolving is connected with micro-nano air supporting release head, also arranges slag scraper on the top of described plasma nanometer air-floating apparatus.
According to cold rolling wastewater deep treatment method of the present invention, preferably, described Zeo-karb device comprises cation bed HL-1 and cation bed HL-2, and described cation bed HL-1 connects the import of the water outlet connection degassing tower of cation bed HL-2, cation bed HL-2; The outlet of described degassing tower connects anionite-exchange resin device, and described anionite-exchange resin device comprises anion bed HL-3 and anion bed HL-4, and described anion bed HL-3 connects anion bed HL-4, anion bed HL-4 outlet connection and finally produces water tank.
According to cold rolling wastewater deep treatment method of the present invention, preferably, the built-in highly acidic resin for adsorbing calcium ion and magnesium ion of described cation bed HL-1, the built-in highly acidic resin for Liquidity limit of described cation bed HL-2; The built-in basic resin for adsorbing chloride ions of described anion bed HL-3, anion bed HL-4 is built-in for adsorpting anion basic resin.
According to cold rolling wastewater deep treatment method of the present invention, preferably, the entrance A of described cation bed HL-1 is connected with the acid solution case for counter-current regeneration by acid solution transferpump, and the entrance A of described cation bed HL-1 is also connected with the pure water tank for counter-current regeneration by pure water transferpump; Described cation bed HL-1 is connected with cation bed HL-2, and for making described acid solution and pure water enter cation bed HL-2 after cation bed HL-1, the water outlet B of cation bed HL-2 is connected with exhausted bath box.
According to cold rolling wastewater deep treatment method of the present invention, preferably, the entrance C of described anion bed HL-3 is connected with the lye tank for counter-current regeneration by alkali lye transferpump, and the entrance C of described anion bed HL-3 is also connected with the pure water tank for counter-current regeneration by pure water transferpump; Described anion bed HL-3 is connected with anion bed HL-4, and for making described alkali lye and pure water enter anion bed HL-4 after anion bed HL-3, the water outlet D of anion bed HL-4 is connected with exhausted bath box.
According to cold rolling wastewater deep treatment method of the present invention, preferably, adopt ceramic-film tube in described inorganic ultra-filtration device, the ultrafiltration aperture of described ceramic-film tube is no more than 50nm.
The present invention utilizes ion exchange resin to carry out the process system of cold rolling final waste discharge advanced treatment, comprise plasma nanometer air-floating apparatus, inorganic ultra-filtration device, ultrafiltration circulating box, ultrafiltration recycle pump, ultrafiltration rinse bath, is produced from pond in ultrafiltration, resin working shaft, Zeo-karb, degassing tower, decarburization blower fan, middle water pump, anionite-exchange resin, finally produce water tank, produce water and send pump outside, acid solution case, acid solution transferpump, lye tank, alkali lye transferpump, pure water tank, pure water transferpump, exhausted bath box and waste liquid transferpump.
Described plasma nanometer air-floating apparatus comprises low-temperature plasma generator, polyphasic flow water pump, dissolving, micro-nano air supporting release head and slag scraper, and upper inlet connects final waste discharge, and outlet connects ultrafiltration circulating box; Described ultrafiltration circulating box outlet connects ultrafiltration recycle pump, then connects inorganic ultra-filtration device; Described inorganic ultra-filtration device outlet connects ultrafiltration circulating box, and outlet also connects ultrafiltration and produces pond; Described ultrafiltration is produced basin outlet and is connect resin working shaft, then connects Zeo-karb device; Described Zeo-karb device comprises 2 cation beds (HL-1, HL-2), and HL-1 cation bed connects HL-2 cation bed, and the water outlet of HL-2 cation bed connects degassing tower; Described degassing tower import also connects decarburization blower fan, exports and connects anionite-exchange resin device by middle water pump; Described anionite-exchange resin device comprises 2 anion beds (HL-3, HL-4), and HL-3 anion bed connects HL-4 anion bed again, and the outlet of HL-4 anion bed connects finally produces water tank.Described final product tank outlet sends pump delivery outside to service water pipe network by producing water.
Described ultrafiltration cleaning case import connects cleaning agent, service water pipe network and steam pipe system, and outlet connects ultrafiltration recycle pump, then connects inorganic ultra-filtration device; The outlet of inorganic ultra-filtration device connects ultrafiltration cleaning case.
Described Zeo-karb device, HL-1 cation bed also connects acid solution transferpump and pure water transferpump, and outlet connects HL-2 cation bed, and the outlet of HL-2 cation bed connects exhausted bath box; Described anionite-exchange resin device, HL-3 anion bed also connects alkali lye transferpump and pure water transferpump, and outlet connects HL-4 anion bed, and the outlet of HL-4 anion bed connects exhausted bath box; Described acid solution case import connects pure water and salt acid treatment, exports the HL-1 cation bed being connect Di by acid solution transferpump; Described lye tank import connects pure water and sodium hydroxide medicament, exports the HL-3 anion bed being connect Di by alkali lye transferpump; Described pure water tank import connects pure water, exports the HL-1 cation bed and the HL-3 anion bed that are connected Di by pure water transferpump; Described exhausted bath box outlet is delivered to strong brine processing system by waste liquid transferpump.
Inorganic ultra-filtration device of the present invention, adopts Multichannel ceramic membrane pipe (ultrafiltration aperture is no more than 50nm), and assembly adopts SS316 shell.
Di influent quality of the present invention need meet, total oil≤1.0mg/L, suspended substance≤10mg/L, CODcr≤30mg/L.
Zeo-karb device of the present invention comprises 2 cation beds (HL-1, HL-2), and wherein HL-1 cation bed is equipped with deliming, magnesium ion resin, and HL-2 cation bed is equipped with highly acidic resin, adsorbable all positively charged ions.Anionite-exchange resin device comprises 2 anion beds (HL-3, HL-4), and wherein HL-3 anion bed is equipped with removing chloride resin, and HL-4 anion bed is equipped with basic resin, adsorbable all negatively charged ion.
HL-1 and the HL-2 cation bed of Zeo-karb device of the present invention adopts counter flow in series regeneration, and regenerative agent is hydrochloric acid, and described anionite-exchange resin device HL-3 and HL-4 anion bed adopt counter flow in series regeneration, and regenerative agent is sodium hydroxide.
Ion exchange water treatment desalinating process of the present invention, ion exchange bed sequence and resin type selecting need adjust according to different sorts water quality.
Inorganic ultra-filtration water treatment device of the present invention, ultrafiltration membrane pipe retains precision, membrane area etc. need carry out type selecting according to different sorts water quality.
After cold rolling wastewater advanced treatment system provided by the invention and disposal methods, final product water water quality meets service water water quality standard, wherein pH7.0-8.0, specific conductivity <500us/cm, SS<10mg/L, fully hard degree <150mg/L, calcium hardness <100mg/L, basicity <110mg/L, chlorion <60mg/L, sulfate radical <50mg/L, full iron <1mg/L, solubility SiO 2<6mg/L, residue on evaporation <300mg/L.
Advantageous Effects of the present invention:
The invention provides a kind of cold rolling wastewater advanced treatment system and treatment process to reduce ton steel and consume new water index, treatment effect is stable, production run cost is low, operation runs easy, and effluent quality can reach service water water-quality guideline, reaches waste water recycling object; Because the content of calcium, magnesium hardness and silica ions is higher in cold rolling final waste discharge, avoids the phenomenon that battery lead plate fouling is serious, cause pole plate frequently pole-reversing, affect the work-ing life of pole plate; Process system of the present invention adopts the special polymeric adsorbent of calcium, magnesium ion, and loading capacity is large, and does not affect resin life; Ion exchange resin is to the no requirement (NR) of water redox potential, and its pretreatment technology can adopt various advanced oxidation processes; Ion exchange resin is not high to pressure requirements, can adopt UPVC pipeline, easy construction and save tubing expense.
Accompanying drawing explanation
Fig. 1 cold rolling wastewater advanced treatment system provided by the invention process flow diagram;
Fig. 2 cold rolling wastewater advanced treatment system provided by the invention equipment flowsheet;
The application flow schematic diagram of Fig. 3 ultrafiltration rinse bath 16 of the present invention;
The application flow schematic diagram of Fig. 4 exhausted bath box 15 of the present invention;
The application flow schematic diagram of Fig. 5 acid solution case 17 of the present invention;
The application flow schematic diagram of Fig. 6 lye tank 19 of the present invention;
The application flow schematic diagram of Fig. 7 pure water tank 21 of the present invention.
In figure: 1-electrooxidation air-floating apparatus, 2-ultrafiltration circulating box, 3-ultrafiltration recycle pump, 4-inorganic ultra-filtration device, is produced from pond in 5-ultrafiltration, 6-resin working shaft, 7-Zeo-karb device, 8-degassing tower, 9-decarburization blower fan, water pump in the middle of 10-, 11-Zeo-karb device, 12-finally produces water tank, 13-produces water and sends pump outside, 14-waste liquid transferpump, 15-exhausted bath box, 16-ultrafiltration rinse bath, 17-acid solution case, 18-acid solution transferpump, 19-lye tank, 20-alkali lye transferpump, 21-pure water tank, 22-pure water transferpump, 23-low-temperature plasma generator, 24-polyphasic flow water pump, 25-dissolving, the micro-nano air supporting release head of 26-, 27-slag scraper, 28-scum silica frost receiving tank.
Embodiment
In order to understand the present invention better, illustrate content of the present invention further below in conjunction with drawings and Examples, but content of the present invention is not only confined to the following examples.
A kind of cold rolling wastewater advanced treatment system provided by the invention, described treatment system connects plasma nanometer air-floating apparatus successively by pipeline, ultrafiltration circulating box, inorganic ultra-filtration device, ultrafiltration produce pond, Zeo-karb device, degassing tower, anionite-exchange resin device and finally produce water tank; Described inorganic ultra-filtration device is also connected with ultrafiltration rinse bath; Described plasma nanometer air-floating apparatus comprises low-temperature plasma generator, described low-temperature plasma generator is connected with dissolving by polyphasic flow water pump, described dissolving is connected with micro-nano air supporting release head, also arranges slag scraper on the top of described plasma nanometer air-floating apparatus.
Embodiment adopts the final waste discharge in cold rolling wastewater station as former water, treatment capacity is 0.25m3/h, treatment scheme is with reference to accompanying drawing 2, described cold rolling wastewater advanced treatment system comprises plasma nanometer air-floating apparatus, inorganic ultra-filtration device, ultrafiltration circulating box, ultrafiltration recycle pump, ultrafiltration rinse bath, is produced from pond in ultrafiltration, resin working shaft, Zeo-karb, degassing tower, decarburization blower fan, middle water pump, anionite-exchange resin, final product water tank, produce water and send pump outside, acid solution case, acid solution transferpump, lye tank, alkali lye transferpump, pure water tank, pure water transferpump, exhausted bath box and waste liquid transferpump.
Described plasma air-floating apparatus comprises low-temperature plasma generator, polyphasic flow water pump, dissolving, micro-nano air supporting release head and slag scraper.Plasma body is molecular by grains such as the atom of electronics, negative ions, excited state, molecule and free radicals.This equipment to have the air of humidity to excite in low-temperature plasma reaction warehouse, produce the gas with hydroxyl radical free radical and ozone, sewage is delivered to again by micro-nano air supporting release head, hydroxyl radical free radical and ozone is made fully to contact with pollutent and produce oxidizing reaction, directly be oxidized to CO2, water or salt, can not secondary pollution be produced.
Micro-nano air supporting release head, is sucked the mixed gas of hydroxyl radical free radical and ozone and water in dissolving by polyphasic flow water pump, is discharged by micro-nano release head.Release head rotates under the impellent of High-Pressure Water, and air pocket is cut into micro-nano bubble, and makes bubble with negative charge, remarkable to the adsorption effect of water pollutant or suspended substance.It is slow that micro-nano bubble has lift velocity, has the effect of self supercharging, and specific surface area is very large, has extraordinary gas dissolution capacity.
Inorganic ultra-filtration device adopts large cross flow filter form, and produce water and enter ultrafiltration product pond, concentrate recirculation is to ultrafiltration circulating box.When certain pressure reduction and Turbulence Flow, most of polar molecule in waste water is made to pass through film, and all non-polar molecules (as colloid, oils, particulate etc.) and the larger material of relative molecular mass are trapped, thus waste water is made to obtain removing purification of waste water.
Inorganic ultra-filtration device, adopts Multichannel ceramic membrane pipe (ultrafiltration aperture is no more than 50nm), and assembly adopts SS316 shell.Inorganic ceramic film has good chemical stability, and acid-and base-resisting, organic solvent, high temperature resistant, antimicrobial ability, applicable pH range is 0 ~ 14, and Applicable temperature scope is at 0 ~ 300 DEG C.General operation pressure is about 0.2-0.35MPa.
Inorganic ultra-filtration plant running certain hour, when flux system decline differential pressure raises, needs to carry out matting.According to cold rolling final waste discharge water quality situation, formulate cleaning program.
Zeo-karb device comprises 2 cation beds (HL-1, HL-2), and wherein HL-1 cation bed is equipped with deliming, magnesium ion resin, and HL-2 cation bed is equipped with highly acidic resin, adsorbable all positively charged ions.Anionite-exchange resin device comprises 2 anion beds (HL-3, HL-4), and wherein HL-3 anion bed is equipped with removing chloride resin, and HL-4 anion bed is equipped with basic resin, adsorbable all negatively charged ion.
During initial launch, all resins need use NaCl, HCl or NaOH to carry out pre-treatment, make it reach maximum loading capacity.
Degassing tower is made up of water dispensing apparatus, packing layer (multiaspect hollow plastic ball, waved plate etc.), decarburization blower fan and middle water pump.The water outlet of Zeo-karb device enters tower body from top, is sprayed equably form moisture film at filling surface by water dispensing apparatus, after packing layer contacts with air, flows into bottom header tank and delivers to anionite-exchange resin device by middle water pump.Air is entered from tower pucking by decarburization blower fan, discharges together with the carbonic acid gas of separating out in water from top.
When ion exchange resin water outlet conductivity raises suddenly (>=400mg/L), need to ion exchange resin regeneration.HL-1 and the HL-2 cation bed of Zeo-karb device adopts counter flow in series regeneration, and the regenerative agent amount of being degree is the hydrochloric acid of 5%-10%, and regenerant consumption is the resin volume of 2 times; Anionite-exchange resin device HL-3 and HL-4 anion bed adopt counter flow in series regeneration, and the sodium hydroxide of regenerative agent to be mass percentage content be 5%-10%, regenerant consumption is the resin volume of 2 times.
Final product water water quality meets service water water quality standard, wherein pH7.0-8.0, specific conductivity <500us/cm, SS<10mg/L, fully hard degree <150mg/L, calcium hardness <100mg/L, basicity <110mg/L, chlorion <60mg/L, sulfate radical <50mg/L, full iron <1mg/L, solubility SiO 2<6mg/L, residue on evaporation <300mg/L;
Waste water drains into delivers to strong brine treatment station.
System Inlet and outlet water water quality situation is as in the table below:
Table one: process system Inlet and outlet water water quality situation
Adopt treatment effect of the present invention to stablize, organism, suspended substance, oils and the salt can effectively removed in waste water grades pollutent, arrives the object of waste water recycling; And production run cost is low, automated operation degree is high, and operation runs easy.Can the advanced treatment process of the cold rolling and final waste discharge of silicon steel of widespread use.

Claims (10)

1. a cold rolling wastewater advanced treatment system, it is characterized in that: described treatment system connects plasma nanometer air-floating apparatus successively by pipeline, ultrafiltration circulating box, inorganic ultra-filtration device, ultrafiltration produce pond, Zeo-karb device, degassing tower, anionite-exchange resin device and finally produce water tank; Described inorganic ultra-filtration device is also connected with ultrafiltration rinse bath; Described plasma nanometer air-floating apparatus comprises low-temperature plasma generator, described low-temperature plasma generator is connected with dissolving by polyphasic flow water pump, described dissolving is connected with micro-nano air supporting release head, also arranges slag scraper on the top of described plasma nanometer air-floating apparatus.
2. cold rolling wastewater advanced treatment system according to claim 1, it is characterized in that, described Zeo-karb device comprises cation bed HL-1 and cation bed HL-2, and the water outlet that described cation bed HL-1 connects cation bed HL-2, cation bed HL-2 connects the import of degassing tower; The outlet of described degassing tower connects anionite-exchange resin device, and described anionite-exchange resin device comprises anion bed HL-3 and anion bed HL-4, and described anion bed HL-3 connects anion bed HL-4, anion bed HL-4 outlet connection and finally produces water tank.
3. cold rolling wastewater advanced treatment system according to claim 2, is characterized in that, the built-in highly acidic resin for adsorbing calcium ion and magnesium ion of described cation bed HL-1, the built-in highly acidic resin for Liquidity limit of described cation bed HL-2; The built-in basic resin for adsorbing chloride ions of described anion bed HL-3, anion bed HL-4 is built-in for adsorpting anion basic resin.
4. cold rolling wastewater advanced treatment system according to claim 2, it is characterized in that, the entrance A of described cation bed HL-1 is connected with the acid solution case for counter-current regeneration by acid solution transferpump, and the entrance A of described cation bed HL-1 is also connected with the pure water tank for counter-current regeneration by pure water transferpump; Described cation bed HL-1 is connected with cation bed HL-2, and for making described acid solution and pure water enter cation bed HL-2 after cation bed HL-1, the water outlet B of cation bed HL-2 is connected with exhausted bath box.
5. cold rolling wastewater advanced treatment system according to claim 2, it is characterized in that, the entrance C of described anion bed HL-3 is connected with the lye tank for counter-current regeneration by alkali lye transferpump, and the entrance C of described anion bed HL-3 is also connected with the pure water tank for counter-current regeneration by pure water transferpump; Described anion bed HL-3 is connected with anion bed HL-4, and for making described alkali lye and pure water enter anion bed HL-4 after anion bed HL-3, the water outlet D of anion bed HL-4 is connected with exhausted bath box.
6. cold rolling wastewater advanced treatment system according to claim 1, it is characterized in that, adopt ceramic-film tube in described inorganic ultra-filtration device, the ultrafiltration aperture of described ceramic-film tube is no more than 50nm.
7. a cold rolling wastewater deep treatment method, is characterized in that, described method application rights requires the cold rolling wastewater advanced treatment system described in 1-6, comprises the steps:
(1) cold rolling wastewater enters plasma nanometer air-floating apparatus, the plasma generator of described plasma nanometer air-floating apparatus produces the gas with hydroxyl radical free radical and ozone, cold rolling wastewater is delivered to again by micro-nano air supporting release head, making hydroxyl radical free radical and ozone fully contact with Pollutants in Wastewater and oxidizing reaction occurs, is CO2, water or salt by pollutant oxidation, on the other hand the mixed gas of hydroxyl radical free radical and ozone and water suck in dissolving by polyphasic flow water pump by micro-nano air supporting release head, release head rotates under the impellent of High-Pressure Water, air pocket is cut into micro-nano bubble, impurity in waste water is brought to the water surface by micro-bubble and is scraped to scum silica frost groove by slag scraper, then waste water enters ultrafiltration circulating box, waste water in ultrafiltration circulating box is through ultrafiltration recycle pump, enter inorganic ultra-filtration device, described inorganic ultra-filtration device adopts large cross flow filter form, produce water and enter ultrafiltration product pond, the concentrate recirculation that inorganic ultra-filtration device produces is to ultrafiltration circulating box,
(2) waste water in ultrafiltration product pond is after entering the positively charged ion in Zeo-karb device removal waste water, enter degassing tower degassed in degassed, enter the negatively charged ion in anionite-exchange resin device removal waste water again, the waste water after removing negatively charged ion enters and finally produces water tank.
8. cold rolling wastewater deep treatment method according to claim 7, is characterized in that, in step (2) when Di goes out electrical conductivity of water >=400mg/L, and need to ion exchange resin regeneration.
9. cold rolling wastewater deep treatment method according to claim 7, it is characterized in that, the cation bed HL-1 of described Zeo-karb device and cation bed HL-2 adopts counter flow in series regeneration, the hydrochloric acid that the medicament that regeneration uses is 5%-10% for mass percentage content, the consumption of regenerator is the resin volume of 2 times; Described anionite-exchange resin device anion bed HL-3 and anion bed HL-4 adopts counter flow in series regeneration, and the sodium hydroxide that the medicament that described regeneration uses is 5-10% for mass percentage content, the consumption of regenerator is the resin volume of 2 times.
10. cold rolling wastewater deep treatment method according to claim 7, is characterized in that, pond waste water is produced in the ultrafiltration that enters after step (1) process: total oil≤1.0mg/L, suspended substance≤10mg/L, CODcr≤30mg/L.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106277639A (en) * 2016-09-19 2017-01-04 山东石横特钢集团有限公司 Steel wastewater low cost prepares the process of pure water
CN107540134A (en) * 2016-06-29 2018-01-05 宝山钢铁股份有限公司 The strong brine qualified discharge processing system and method for a kind of cold rolling wastewater ion exchange
CN108892287A (en) * 2018-08-17 2018-11-27 宝钢工程技术集团有限公司 Wastewater treatment method and system
CN110921942A (en) * 2019-12-23 2020-03-27 北京工业大学 Swirl-air flotation oil-water separation system based on discharge plasma

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
肖兰芳: "浅谈反渗透与离子交换在武钢纯水制备中的应用", 《第三届膜分离技术在冶金工业中应用研讨会论文集》 *
舒纯等: "冷轧含油乳化液废水处理新思路探究", 《冶金动力》 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107540134A (en) * 2016-06-29 2018-01-05 宝山钢铁股份有限公司 The strong brine qualified discharge processing system and method for a kind of cold rolling wastewater ion exchange
CN107540134B (en) * 2016-06-29 2020-10-27 宝山钢铁股份有限公司 Strong brine standard-reaching discharge treatment system and method for cold rolling wastewater ion exchange
CN106277639A (en) * 2016-09-19 2017-01-04 山东石横特钢集团有限公司 Steel wastewater low cost prepares the process of pure water
CN108892287A (en) * 2018-08-17 2018-11-27 宝钢工程技术集团有限公司 Wastewater treatment method and system
CN110921942A (en) * 2019-12-23 2020-03-27 北京工业大学 Swirl-air flotation oil-water separation system based on discharge plasma

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