CN104030492A - Treatment process and device of industrial wastewater containing heavy metal ions - Google Patents
Treatment process and device of industrial wastewater containing heavy metal ions Download PDFInfo
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- CN104030492A CN104030492A CN201410300672.4A CN201410300672A CN104030492A CN 104030492 A CN104030492 A CN 104030492A CN 201410300672 A CN201410300672 A CN 201410300672A CN 104030492 A CN104030492 A CN 104030492A
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- Water Treatment By Sorption (AREA)
Abstract
The invention belongs to the technical field of water treatment, and in particular relates to a treatment process and device of industrial wastewater containing heavy metal ions. The treatment process and device comprise two parts namely an enhanced pre-treatment process and device and an adsorption treatment process and device, wherein the enhanced pre-treatment device comprises a raw water bucket, a reaction sedimentation tank and a filter tower which are connected with one another in sequence; the adsorption treatment device comprises a middle water tank, an adsorption tower and a clean water tank which are connected with one another in sequence. A filter material in the filter tower consists of quartz sand, anthracite, cobblestone, activated carbon, or zeolite; and a filling material in the adsorption tower is a hydrogel adsorption material. The treatment process and device disclosed by the invention have the advantages that a polymer hydrogel adsorbent and a fixed bed technology are adopted for effectively reducing the concentration of the heavy metal ions in a water body; and the adsorbed hydrogel is desorbed by using acid liquor to recycle the adsorption materials and reduce the wastewater treatment cost. The device disclosed by the invention is simple in structure and occupies a small space; the equipment is compact and simple and easy to operate so as to ensure high water quality and stability of effluent.
Description
Technical field
The invention belongs to water-treatment technology field, be specifically related to a kind of containing heavy metal ion technique for treating industrial wastewater and device.
Technical background
In recent years, heavy metal presents exponential growth in the rate of utilization of industrial trade, especially flourish along with industries such as mining industry, store battery industry, fossil energy industry, electroplating industry and electronic industries, heavy metal contamination is day by day remarkable to the threat of environment for human survival.Heavy metal entered environment, can suppress the metabolism of biologies at different levels in environment, to mankind's physiological function, intelligence etc. produce harm, simultaneously due to the persistence of heavy metal contaminants, toxic and biological chemistry non-biodegradable, once entered environment will exist for a long time or for good and all in environment.Lead ion has toxicity, and lead waste water has serious harm to animal and plant growth and human health, easily causes anaemia, neuritis etc.After cadmium is absorbed by the body, can form in vivo cadmium sulfoprotein, optionally accumulate in liver, kidney.Cadmium also can make the metabolism of bone be obstructed, and causes the series of symptoms such as osteoporosis, atrophy, distortion.Chromium element, when respiratory tract is invaded, can be encroached on the upper respiratory tract, causes rhinitis, pharyngitis, bronchitis, even perforation of nasal septum; Long term, also can cause pulmonary emphysema, bronchiectasis, pneumosclerosis and lung cancer etc.
The treatment process of heavy metal ion-containing waste water mainly contains chemical precipitation method, membrane separation process, ion exchange method, electroosmose process and absorption method at present.Wherein chemical precipitation method is that a kind of processing of extensive employing is containing the method for heavy metal ion trade effluent, to adding alkaline neutralization reagent or sulfide containing in heavy metal ion trade effluent, heavy metal ion is reacted with hydroxyl or sulfonium ion, production is insoluble in precipitation of hydroxide or the sulfide precipitation thing of water, thereby separated from water.Yet heavy metal ion chemical precipitation process control condition is comparatively strict, need the strict optimal ph that forms precipitation of hydroxide of controlling, the too low heavy metal ion of pH cannot precipitate completely, the too high throw out that makes dissolves, heavy metal ion comes back in water, causes water outlet heavy metal ion content to surpass emission request.In addition, the supernatant liquor obtaining after available technology adopting chemical precipitation method, directly discharge after mechanical filter, draining water quality is subject to the impact of sedimentation effect and filter effect, and water outlet concentration of heavy metal ion is unstable.Absorption method is easy to operate, and sorbing material and heavy metal ion bonding force are strong, specific surface area is large and have sufficient avtive spot, high to the removal efficiency of heavy metal ion, tool application prospect in heavy metal-containing waste water is administered.
Number of patent application CN200510094077.0 discloses a kind of soil that makes to be subject to Lead contamination and lead waste water can deleading and reclaim plumbous device, mainly with being mixed to form leaded salts solution with lead waste water after dissolving with hydrochloric acid by leaded soil, recycling ion exchange method Adsorption of Lead is also plumbous with the sucking-off of strippant solution, reaches and reclaims plumbous object.Number of patent application CN200910196156.0 discloses a kind of equipment for reclaiming of lead acid cell waste water, first by reactive tank, input the lead waste water of question response, then add heavy metal complex precipitant, flocculation agent etc. to react, water outlet after the salt in reverse osmosis unit removal waste water for settling bath supernatant liquor.Number of patent application CN201310459139.8 discloses a kind of technique of lead waste water treatment and reuse, comprises primary treatment and advanced treatment, and primary treatment mainly comprises: chemical neutralization precipitation and one-level tubular membrane filtration treatment technique; Advanced treatment is the concentrated desalination process of ultrafiltration, two-pass reverse osmosis and secondary tubular type membrane filtration treatment process, and the clear water water outlet of first-stage reverse osmosis, two-pass reverse osmosis and secondary tubular type membrane filtration is carried out to reuse.Number of patent application CN200710068326.8 discloses a kind of heavy metal in electroplating wastewater treating method, whole process comprises preprocessing process, testing process, filtration, absorption, ion exchange process, media regeneration process etc., filtration wherein, the set of adsorbed ion exchange process are in one, select sodium type resin as the filtrate of filtration, absorption, ion-exchange, reach the effect of processing heavy metal.Number of patent application CN200710093212.9 discloses a kind of device for treating agricultural marsh liquid heavy metal, comprise natural pond liquid treating pond, natural pond liquid transfer lime, sediment scratch pool and irrigate transfer lime, wherein the fixing heavy metal in the liquid of natural pond of the main applied chemistry precipitator method, realizes the Environmental-protection recycling utilization of waste and the decrement discharge of pollutent.Utility application CN201120242368.0 discloses a kind of heavy metal treatment micro-filtration system, comprises the dense water pretreatment system of heavy metal and tubular type microfiltration systems, mainly utilizes the method for reaction precipitation and micro-filtration to carry out heavy metal removal.Utility application CN201120132484.7 discloses a kind of follow-up a small amount of heavy metal treatment reactor of smelting wastewater, this reactor comprises Buffer Pool, iron carbon pond, anaerobic reactor, heavy metal mud sinking chamber and off gas scrubber, waste water is processed through Buffer Pool, iron carbon pond and anaerobic reactor successively, the waste gas producing in process discharge after off gas scrubber washing.Utility application CN201320022939.9 discloses a kind of Heavy Metals in Sludge treatment system, mainly comprise retort, vent pipe, mud concentrated solution water inlet pipe, hold-up vessel, evacuated tube, spray thrower and static mixer etc., make mud concentrated solution react even with inoculation liquid, energy thing.Hu-Chun Tao etc. (Removal of heavy metals from fly ash leachate using combined bioelectrochemical systems and electrolysis.Journal of Hazardous Materials.2014) remove the heavy metal in flyash by a kind of novel bioelectrochemistry system (BES) in conjunction with electrolysis reactor (ER), and this reactor has been removed 98.5% Cu (II), 95.4% Zn (II) and 98.1% Pb (II).(the Copper removal from water using a bio-rack system either unplanted or planted with Phragmites australis such as Lilian Marchand, Juncus articulatus and Phalaris arundinacea.Ecological Engineering.2014) studied with the biological machine frame system that contains Medulla Junci and removed the cupric ion in water body, this artificial swamp is effectively removed cupric ion, and effect is up to 90%.Adrian Oehmen etc. (Mercury removal from water streams through the ion exchange membrane bioreactor concept.Journal of Hazardous Materials.2014) remove the mercury in water with ion-exchange biofilm reactor, make that in water, mercury content is lower than tap water ppb level, clearance is more than 98%.(the molybdenum processing waste water recycling treatment demonstration project such as Zhang Hengtao, environmental protection science and technology, 2011) reported a kind of molybdenum processing waste water recycling treatment demonstration project, adopting triple-effect evaporator to reclaim ammonium nitrate is main technique, add sulfuration ammonia precipitation heavy metal ion, make wastewater treatment realize zero release, reclaim useful byproduct, reduce production costs, improve economic worth.Above-mentioned research shows, researchers have been obtained certain achievement for the advanced treatment of heavy metal-containing waste water, but to using hydrogel adsorption treatment after heavy metal-containing waste water primary treatment, such technique and device so far there are no report.
Summary of the invention
The technical issues that need to address of the present invention are to process containing in heavy metal ion trade effluent process for chemical precipitation method, that pH controls is strict, discharge water quality is unstable and water outlet concentration of heavy metal ion higher than shortcomings such as emission standards, be difficult to realize the problem that the efficient degree of depth of heavy metal ion-containing waste water is removed, the invention provides a kind of heavy metal ion-containing waste water treatment process and device rational in infrastructure, thereby reduce to a great extent water outlet concentration of heavy metal ion.Use this device, not only can process heavy metal-containing waste water, can also reclaim the heavy metal in waste water, realize the resource utilization of waste water.
Technical scheme of the present invention
1. the treatment process of heavy metal-containing waste water of the present invention, comprises strengthening pretreatment technology and adsorption treatment process.Described strengthening pretreatment technology adopts reaction precipitation and filtration treatment, and described adsorption treatment process adopts lead, nickel, the chromium plasma in polyalcohol hydrogel absorption waste water.The pH value regulation range of described reaction precipitation technique is 8～11, makes most of heavy metal ion precipitation; Described adsorption treatment process need be adjusted to 4～6 by the pH of waste water, to guarantee the optimal adsorption effect of polyalcohol hydrogel before adopting polyalcohol hydrogel absorption.
2. the treatment unit of heavy metal-containing waste water of the present invention, comprises strengthening pretreatment unit and absorbing treatment device two portions, and described strengthening pretreatment unit comprises former bucket (1), reaction settling basin (8) and the filtration tank (9) being linked in sequence; Described absorbing treatment device comprises intermediate pool (13), adsorption tower (15) and the clean water basin (17) that are linked in sequence.Filtrate (10) in described filtration tank (9) is comprised of quartz sand, hard coal, pebbles, gac or zeolite, filler in described adsorption tower (15) is polyalcohol hydrogel sorbing material (16), by monomer, through radiation polymerization, reaction obtains, and is a kind of high molecular polymer.The aspect ratio of described adsorption tower (15) is 4～8.Described reaction settling basin (8) provides alkali lye by alkali bucket (5) in pond, and the heavy metal ion precipitation in described reaction precipitation (8) is discharged at the bottom of pond, recoverable after pressure filter (18); Described intermediate pool (13) provides acid solution by acid bucket (14) in pond.Described filtrate (10) filters saturated, when interception capacity declines, by bucket (12) from the beginning, provides tap water to carry out back flushing; Described polyalcohol hydrogel sorbing material (16) adsorbs saturated, when adsorptive power declines, by acid bucket (14), provides acid solution to carry out wash-out.Between described former bucket (1) and reaction settling basin (8), between reaction settling basin (8) and filtration tank (9), between intermediate pool (13) and adsorption tower (15), all series connection is provided with under meter (3) and water pump (4); In described reaction settling basin (8) and intermediate pool (13), be provided with agitator (6) and pH probe (7); The top of described filtration tank (9) and adsorption tower (15) is equipped with tensimeter (11), monitoring tower internal pressure; The water inlet of described all devices and water side are all provided with valve (2).The reaction zone pH value regulation range of described reaction settling basin is 8～11, and the water outlet of alkali bucket is connected to reaction settling basin.The bed mud of described reaction settling basin obtains heavy metal mud, recoverable after pressure filter.Filler in described filtration tank is comprised of quartz sand, hard coal, pebbles, gac or zeolite, according to the granular size Selective filling order of filler.In described intermediate pool, need to regulate pH to 4～6, to guarantee the optimal adsorption effect of hydrogel, the water outlet of acid bucket is connected to intermediate pool.The filler of described adsorption tower is hydrogel, for the heavy metal ion of planar water, and pickling removing heavy-metal ion for the hydrogel after absorption, elutriant recoverable.The water outlet of described clean water basin can directly be discharged or return production line and be used.Between described former pond and reaction settling basin, between reaction settling basin and filtration tank, between intermediate pool and adsorption tower, be equipped with under meter and water pump, for regulating flooding quantity and flow velocity.In described reaction settling basin, intermediate pool, be equipped with whipping appts and pH probe, for stirring waste water and controlling waste water ph.Described filtration unit, uses tap water back flushing, and backwashing water enters lower ditch, enters municipal sewage plant.
3. heavy metal-containing wastewater treatment method of the present invention mainly comprises following step:
1) heavy metal-containing waste water enters former bucket collection;
2) by 1) in water with certain flow rate, by under meter and water pump, squeeze into reaction settling basin, and Xiang Chizhong adds alkali lye, reacts generate precipitation of hydroxide with heavy metal-containing waste water;
3) by 2) in supernatant liquor by under meter and water pump, squeeze into filtration tank, precipitation of hydroxide is discharged from pond bottom, recyclable heavy metal precipitation after pressure filter press filtration;
4) water outlet 3) enters intermediate pool, and Xiang Chizhong adds acid solution, makes pH to 4～6, with agitator, stirs;
5) by 4) in water by under meter and water pump, squeeze into adsorption tower;
6) water outlet 5) enters clean water basin, can return production line or directly discharge.
Beneficial effect of the present invention
The invention provides a kind of heavy metal ion technique for treating industrial wastewater and device thereof, the mode that adopts strengthening pre-treatment to be combined with adsorption treatment, to efficiently processing containing heavy metal ion trade effluent, chemical precipitation and the sand filtration technique of strengthening in pre-treatment, can remove in waste water approximately 80% heavy metal ion.Adopt chemical method for dosing medicine to carry out precipitation process, can reduce the load of follow-up adsorption treatment link, improve the processing efficiency of integrated artistic flow process.Heavy metal mud at the bottom of settling tank, through the recyclable heavy metal of pressure filter, produces certain economic benefit.Sand filtration technique is carried out further pre-treatment to waste water, can improve the removal efficiency of ss suspended solid, and can tackle the oxyhydroxide floss less than normal that the deviation because of chemical chemical feeding quantity forms, and reduces subsequent reactions load.Adopt adsorption tower fixed bed as the adsorption treatment unit of waste water, using polymer hydrogel sorbent material and bed technology, can effectively reduce Heavy Metals in Waters ionic concn, with qualified discharge or reuse.Before adsorption treatment, carry out pH value and regulate, can improve the adsorptive power of hydrogel, make hydrogel absorbing heavy metal ions in water to greatest extent.By acid solution, the hydrogel after adsorbing is carried out to desorption, can make the recycle of hydrogel sorbing material, save cost for wastewater treatment.Apparatus of the present invention are simple in structure, and floor space is little, and facility compact is succinct, easy to operate, indoor and outdoor all can be used, and heavy metal-containing wastewater treatment cost poor efficiency is high, can fully guarantee water quality and the stability of water outlet, so this invention is effective technique and the device of heavy metal-containing wastewater treatment.Use this device, not only can process heavy metal-containing waste water, can also reclaim the heavy metal in waste water, realize the resource utilization of waste water.
Accompanying drawing explanation
Fig. 1. heavy metal-containing wastewater treatment process unit structural representation, 1 former bucket, 2 valves, 3 under meters, 4 water pumps, 5 alkali buckets, 6 agitators, 7pH probe, 8 reaction settling basins, 9 filtration tanks, 10 filtrates, 11 tensimeters, 12 buckets from the beginning, 13 intermediate pool, 14 acid buckets, 15 adsorption towers, 16 hydrogel sorbing materials, 17 clean water basin, 18 pressure filter
Fig. 2. heavy metal-containing wastewater treatment process flow sheet
Fig. 3. laboratory lab scale water outlet plumbum ion concentration change curve
Fig. 4. lead waste water factory pilot scale water outlet plumbum ion concentration change curve
Fig. 5. the change curve of the pilot scale water outlet COD of lead waste water factory and SS concentration
Fig. 6. lead waste water factory pilot scale water outlet plumbum ion concentration change curve
Fig. 7. Nickel-bearing Waste water factory pilot scale water outlet nickel ion concentration change curve
Fig. 8. chromate waste water factory pilot scale water outlet chromium ion concentration change curve
Wherein legend meaning is as follows: ... ■ ... COD concentration (mg/L) ,-●-SS (mg/L)
Embodiment
As shown in Figure 1, heavy metal wastewater thereby enters former bucket 1 from water inlet pipe by valve 2, store after certain water yield, from the valve of former bucket 1 lower end, side, with certain flow velocity, flow out, through under meter 3 and water pump 4, water pump is raised to reaction settling basin 8 by water extraction, in reaction settling basin, be provided with agitator 6 and pH probe 7, now the alkali lye of 5 li, alkali bucket enters reaction settling basin 8 with certain flow velocity, agitator 6 stirs, there is neutralization reaction, the pH value of pH probe 7 monitoring reaction zones, make them in 9～10 scopes, guarantee most heavy metal ion precipitations, the supernatant liquor of reaction settling basin 8 flows out from the water outlet of right-hand member, heavy metal precipitation flows out from the bottom of reaction settling basin 8, after pressure filter 18 press filtrations, recycle.The supernatant liquor of reaction settling basin 8 enters from the valve of filtration tank 9 lower ends by water pump and under meter, from the valve outflow of filtration tank 9 upper ends, enters intermediate pool 13.Filtration tank 9 is completely airtight, and top is provided with tensimeter 11, the pressure being used in real-time monitoring filtering tower.Meanwhile, the acid solution that acid bucket is 14 li enters intermediate pool 13 with certain flow rate, is provided with agitator 6 and pH probe 7 in intermediate pool 13, and the pH value in monitoring intermediate pool, makes them in 4～6 scopes, guarantees the best pH condition of follow-up hydrogel absorption.The water flowing out from intermediate pool 13 lower ends enters from the valve of adsorption tower 15 lower ends after under meter and water pump, flows out that enter clean water basin 17 can qualified discharge or return production line and use from the valve of adsorption tower 15 upper ends.Device is after operation for some time, need to carry out back flushing to the filtrate in filtration tank 9, the tap water in bucket 12 enters from the upper end of filtration tank 9 from the beginning, after certain residence time, from the lower end of filtration tank 9, enter water drain, enter municipal sewage plant.After the absorption of hydrogel material in adsorption tower 15 is saturated, need to carry out desorption to it, acid solution in acid bucket 14 can be entered the upper end by adsorption tower 15, through the lower end discharge of certain residence time from adsorption tower 15, obtain dense heavy metal solution, recyclable heavy metal after concentrated, hydrogel sorbing material is regenerated, and can reuse.
Embodiment 1:
Laboratory lab scale
The device adopting: a kind of lead waste water treatment unit comprises: former bucket 1, valve 2, under meter 3 does not arrange at this embodiment, water pump 4, alkali bucket 5, agitator 6, pH probe 7, reaction settling basin 8, filtration tank 9, filtrate 10, tensimeter 11 does not arrange at this embodiment, and bucket 12 from the beginning, intermediate pool 13, acid bucket 14, adsorption tower 15, polyalcohol hydrogel sorbing material 16, clean water basin 17, pressure filter 18 does not arrange at this embodiment.
Water inlet plumbum ion concentration 10mg/l, pH is 2.0, filtrate 10 at this embodiment for being successively from top to bottom quartz sand, hard coal, goose soft rock, the aspect ratio of adsorption tower 15 is 5, according to the process flow sheet operation shown in Fig. 2, every 3h, get the water sample of clean water basin 17, process continuously after 24h, water outlet plumbum ion concentration is all lower than 0.8mg/l, and plumbum ion concentration change curve is shown in Fig. 3.
Embodiment 2:
Laboratory lab scale
The device adopting: a kind of lead waste water treatment unit comprises: former bucket 1, valve 2, under meter 3 does not arrange at this embodiment, water pump 4, alkali bucket 5, agitator 6, pH probe 7, reaction settling basin 8, filtration tank 9, filtrate 10, tensimeter 11 does not arrange at this embodiment, and bucket 12 from the beginning, intermediate pool 13, acid bucket 14, adsorption tower 15, polyalcohol hydrogel sorbing material 16, clean water basin 17, pressure filter 18 does not arrange at this embodiment.
Water inlet plumbum ion concentration 100mg/l, pH is 2.0, COD concentration is 70mg/l, filtrate 10 is at this embodiment for being successively from top to bottom gac, zeolite, goose soft rock, and the aspect ratio of adsorption tower 15 is 6, according to the process flow sheet operation shown in Fig. 2, every 2h, get the water sample of clean water basin 17, process after 24h continuously, water outlet plumbum ion concentration is all lower than 1mg/l, and COD concentration is lower than 45mg/l.
Embodiment 3:
The pilot scale of lead waste water factory
The device adopting: a kind of lead waste water treatment unit comprises: former bucket 1, valve 2, under meter 3, water pump 4, alkali bucket 5, agitator 6, pH probe 7, reaction settling basin 8, filtration tank 9, filtrate 10, tensimeter 11, bucket 12 from the beginning, intermediate pool 13, acid bucket 14, adsorption tower 15, hydrogel sorbing material 16, clean water basin 17, pressure filter 18.
At certain, electroplate source mill, water inlet plumbum ion concentration 5mg/l, pH is 2.5, COD concentration is 80mg/l, SS concentration is 90mg/l, filtrate 10 at this embodiment for being gac, hard coal, zeolite from top to bottom successively, the aspect ratio of adsorption tower 15 is 6, according to the process flow sheet operation shown in Fig. 2, gets the water sample of clean water basin 17 every 1d, process continuously after 7d, water outlet plumbum ion concentration is all lower than 0.6mg/l, and COD concentration is lower than 50mg/l, and SS concentration is lower than 55mg/l, plumbum ion concentration change curve is shown in Fig. 4, and the change curve of COD and SS concentration is shown in Fig. 5.
Embodiment 4:
The pilot scale of lead waste water factory
The device adopting: a kind of lead waste water treatment unit comprises: former bucket 1, valve 2, under meter 3, water pump 4, alkali bucket 5, agitator 6, pH probe 7, reaction settling basin 8, filtration tank 9, filtrate 10, tensimeter 11, bucket 12 from the beginning, intermediate pool 13, acid bucket 14, adsorption tower 15, hydrogel sorbing material 16, clean water basin 17, pressure filter 18.
Mou smeltery, water inlet plumbum ion concentration 8mg/l, pH is 3.0, COD concentration is 60mg/l, SS concentration is 70mg/l, filtrate 10 at this embodiment for being successively from top to bottom gac, quartz sand, goose soft rock, the aspect ratio of adsorption tower 15 is 5, according to the process flow sheet operation shown in Fig. 2, every 1d, get the water sample of clean water basin 17, process continuously after 7d, water outlet plumbum ion concentration is all lower than 0.8mg/l, COD concentration is lower than 48mg/l, and SS concentration is lower than 50mg/l, and plumbum ion concentration change curve is shown in Fig. 6.
Embodiment 5:
The pilot scale of Nickel-bearing Waste water factory
The device adopting: a kind of leaded nickel water treatment device comprises: former bucket 1, valve 2, under meter 3, water pump 4, alkali bucket 5, agitator 6, pH probe 7, reaction settling basin 8, filtration tank 9, filtrate 10, tensimeter 11, bucket 12 from the beginning, intermediate pool 13, acid bucket 14, adsorption tower 15, hydrogel sorbing material 16, clean water basin 17, pressure filter 18.
Mou mechanical workout factory, water inlet nickel ion concentration 10mg/l, pH is 2.2, COD concentration is 60mg/l, SS concentration is 75mg/l, filtrate 10 at this embodiment for being successively from top to bottom hard coal, zeolite, goose soft rock, the aspect ratio of adsorption tower 15 is 4, according to the process flow sheet operation shown in Fig. 2, every 1d, get the water sample of clean water basin 17, process continuously after 7d, water outlet nickel ion concentration is all lower than 0.05mg/l, COD concentration is lower than 50mg/l, and SS concentration is lower than 50mg/l, and nickel ion concentration change curve is shown in Fig. 7.
Embodiment 6:
The pilot scale of chromate waste water factory
At Gaochun battery manufacturer, the device of employing: a kind of chromate waste water treatment unit comprises: former bucket 1, valve 2, under meter 3, water pump 4, alkali bucket 5, agitator 6, pH probe 7, reaction settling basin 8, filtration tank 9, filtrate 10, tensimeter 11, bucket 12 from the beginning, intermediate pool 13, acid bucket 14, adsorption tower 15, hydrogel sorbing material 16, clean water basin 17, pressure filter 18.
Water inlet chromium ion concentration 20mg/l, pH is that 2.6, COD concentration is 55mg/l, SS concentration is 65mg/l, filtrate 10 is at this embodiment for being gac, quartz sand, zeolite from top to bottom successively, and the aspect ratio of adsorption tower 15 is 5, according to the process flow sheet operation shown in Fig. 2, every 1d, get the water sample of clean water basin 17, process after 7d continuously, water outlet chromium ion concentration is all lower than 0.5mg/l, and COD concentration is lower than 50mg/l, SS concentration is lower than 46mg/l, and chromium ion concentration change curve is shown in Fig. 8.
Claims (4)
1. one kind contains heavy metal ion technique for treating industrial wastewater, it is characterized in that being formed by strengthening pretreatment technology and adsorption treatment process two portions, described strengthening pretreatment technology adopts reaction precipitation and filtration treatment, and described adsorption treatment process adopts lead, nickel, the chromium ion in polyalcohol hydrogel absorption waste water.
2. according to claim 1 containing heavy metal ion technique for treating industrial wastewater, it is characterized in that: the pH value regulation range of described reaction precipitation technique is 8～11, make most of heavy metal ion precipitation; Described adsorption treatment process need be adjusted to 4～6 by the pH of waste water, to guarantee the optimal adsorption effect of polyalcohol hydrogel before adopting polyalcohol hydrogel absorption.
According to claim 1 heavy metal ion-containing waste water treatment process design manufacture containing heavy metal ion industrial waste water disposal device, it is characterized in that consisting of strengthening pretreatment unit and absorbing treatment device two portions, described strengthening pretreatment unit is former bucket (1), reaction settling basin (8) and the filtration tank (9) being linked in sequence; Described absorbing treatment device is intermediate pool (13), adsorption tower (15) and the clean water basin (17) that are linked in sequence; Filtrate (10) in described filtration tank (9) is comprised of quartz sand, hard coal, pebbles, gac or zeolite; Filler in described adsorption tower (15) is polyalcohol hydrogel sorbing material (16), and by monomer, through radiation polymerization, reaction obtains, and is a kind of high molecular polymer; The aspect ratio of described adsorption tower (15) is 4～8; Described reaction settling basin (8) provides alkali lye by alkali bucket (5) in pond; Heavy metal ion precipitation in described reaction precipitation (8) is discharged at the bottom of pond, after pressure filter (18), recycles; Described intermediate pool (13) provides acid solution by acid bucket (14) in pond; : described filtrate (10) filters saturated, when interception capacity declines, by bucket (12) from the beginning, provides tap water to carry out back flushing; Described polyalcohol hydrogel sorbing material (16) adsorbs saturated, when adsorptive power declines, by acid bucket (14), provides acid solution to carry out wash-out; Between described former bucket (1) and reaction settling basin (8), between reaction settling basin (8) and filtration tank (9), between intermediate pool (13) and adsorption tower (15), all series connection is provided with under meter (3) and water pump (4); In described reaction settling basin (8) and intermediate pool (13), be provided with agitator (6) and pH probe (7); The top of described filtration tank (9) and adsorption tower (15) is equipped with tensimeter (11), monitoring tower internal pressure; The water inlet of described all devices and water side are all provided with valve (2).
4. heavy metal ion-containing waste water treatment process is processed heavy metal-containing wastewater treatment method according to claim 1, it is characterized in that consisting of following steps:
1) heavy metal-containing waste water enters former bucket collection;
2) by 1) in water with certain flow rate, by under meter and water pump, squeeze into reaction settling basin, and Xiang Chizhong adds alkali lye, reacts generate precipitation of hydroxide with heavy metal-containing waste water;
3) by 2) in supernatant liquor by under meter and water pump, squeeze into filtration tank, precipitation of hydroxide is discharged from pond bottom, after pressure filter press filtration, reclaims heavy metal precipitation;
4) water outlet 3) enters intermediate pool, and Xiang Chizhong adds acid solution, makes pH to 4～6, with agitator, stirs;
5) by 4) in water by under meter and water pump, squeeze into adsorption tower;
6) water outlet 5) enters clean water basin, returns production line or directly discharge.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102453187A (en) * | 2010-10-25 | 2012-05-16 | 南京大学 | Polymer hydrogel for absorbing heavy metals and preparation method and application thereof |
| CN102786171A (en) * | 2012-08-28 | 2012-11-21 | 山东同大镍网有限公司 | Comprehensive treatment process and device for electroplating wastewater containing heavy metal ions, Cr6+, Cu2+ and Ni2+ |
-
2014
- 2014-06-26 CN CN201410300672.4A patent/CN104030492A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102453187A (en) * | 2010-10-25 | 2012-05-16 | 南京大学 | Polymer hydrogel for absorbing heavy metals and preparation method and application thereof |
| CN102786171A (en) * | 2012-08-28 | 2012-11-21 | 山东同大镍网有限公司 | Comprehensive treatment process and device for electroplating wastewater containing heavy metal ions, Cr6+, Cu2+ and Ni2+ |
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| CN108529782A (en) * | 2017-03-06 | 2018-09-14 | 天津泰班科技发展有限公司 | A kind of industrial wastewater treatment device and treatment process |
| CN107082512A (en) * | 2017-05-25 | 2017-08-22 | 苏州利比奥环保科技有限公司 | A kind of effluent containing heavy metal ions processing system and its method of wastewater treatment |
| CN107651772A (en) * | 2017-11-07 | 2018-02-02 | 苏州淡林环境科技有限公司 | A kind of electroplating wastewater advanced treatment apparatus |
| CN109946365A (en) * | 2017-12-21 | 2019-06-28 | 财团法人工业技术研究院 | The detection method of heavy metal ion |
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Application publication date: 20140910 |