CN106830166A - A kind of coking wastewater treatment agent, preparation method and processing method - Google Patents
A kind of coking wastewater treatment agent, preparation method and processing method Download PDFInfo
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- CN106830166A CN106830166A CN201710103289.3A CN201710103289A CN106830166A CN 106830166 A CN106830166 A CN 106830166A CN 201710103289 A CN201710103289 A CN 201710103289A CN 106830166 A CN106830166 A CN 106830166A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
- C02F2101/14—Fluorine or fluorine-containing compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/18—Cyanides
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/32—Hydrocarbons, e.g. oil
- C02F2101/327—Polyaromatic Hydrocarbons [PAH's]
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
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Abstract
The invention provides a kind of inorganic agent of coking chemical waste water, the inorganic agent is formed by decolorizing adsorbent and fluorine removal coagulant mixture；The decolorizing adsorbent includes following weight percent composition：Activated carbon A：25 40%, activated carbon B：25 50%；The 1300m of specific surface area 600 of the activated carbon A2/ ml, the 25000nm of aperture 800；Activated carbon B：The 1000m of specific surface area 5002/ ml, the 1200nm of aperture 300；The coagulant is aluminum sulfate solution.Present invention also offers the preparation method of the inorganic agent, and using the method for the inorganic agent Treatment of Wastewater in Coking.By improved treatment agent, its PROCESS FOR TREATMENT can make reaction time shorten 10% 20% to the present invention；Except COD effect promotings 10 25%, using operating cost reduction by 10% 50%, cost of investment reduction by 20% 30%.
Description
Technical field
The present invention relates to field of waste water treatment, and in particular to a kind of coking wastewater treatment agent, and it is related to a kind of coking to give up
Method for treating water.
Background technology
Coking chemical waste water be coal formed in high temperature and medium temperature carbonization, gas purification and chemical products subtractive process it is useless
Water, wherein containing the organic pollutions such as phenols, benzene homologues, polycyclic aromatic hydrocarbon, nitrogen-containing heterocycle compound and ammonia, cyanogen, rhodanide
Deng inorganic pollution, complicated component, constituent species are various, organic pollution concentration and Colority of Sewage Water is high, toxicity big, and property is very
Stabilization, is a kind of typical difficult degradation complexity toxic industrial organic wastewater.For the intractability for meeting qualified discharge is big, cost compared with
Height, such as deals with improperly, great harm will be caused to National Water Environmental.
Current most domestic enterprise performs steel industry discharge standard GB13456-92 (containing coking industry).2012 10
The moon 1, country promulgates《Coking chemistry emission of industrial pollutants standard》(GB16171-2012), hereinafter referred to as new standard.Newly
Standard is more strict on Pollutant emission concentration and monitoring range, to the row of suspension, COD, ammonia nitrogen, petroleum-type and cyanide
Put requirement to be obviously improved, increased the emission request of BOD5, T-N, benzene and polycyclic aromatic hydrocarbon；Meanwhile, new standard is also accordingly improved
The water consume requirement of ton product.For the water process present situation of domestic coking industry, the strict law enforcement of the standard will be to coking industry
Huge challenge.Substantially domestic all apparatus for treating carbonized waste water must all carry out upgrading, be only possible to meet emission request；Together
When the managerial skills for the treatment of facility also must be lifted further.
Newly-built enterprise's Sewage Water Emissions concentration limit and unit product benchmark displacement
Unit：Mg/l (except pH value)
The content of the invention
Therefore, in order to reduce the treatment residence time, Treatment of Coking Effluent effect is made more preferably, reagent cost reduction, the present invention
The technical problem to be solved is to provide a kind of inorganic agent of coking chemical waste water.The invention solves the problems that another technical problem be to carry
For the preparation method of the coking wastewater treatment agent.Present invention also offers above-mentioned coking wastewater treatment agent in Treatment of Coking Effluent
When processing method.
The technical scheme is that, a kind of coking wastewater treatment agent, the inorganic agent is by decolorizing adsorbent and coagulant
Mixture is formed；
The decolorizing adsorbent includes following weight percent composition：Activated carbon A：25-60%, activated carbon B：25-50%；
The specific surface area 600-1300m of the activated carbon A2/ ml, aperture 800-25000nm；Activated carbon B：Specific surface area 500-
1000m2/ ml, aperture 300-1200nm；
The coagulant is aluminum sulfate solution.
Decolorizing adsorbent is to utilize 2 kinds of activated carbon different pore size specifications, can be to the pollution of different molecular structures in waste water
Thing is more effectively adsorbed, and improves the adsorption efficiency of activated carbon, suction of the activated carbon to multicomponent organic matter in coking chemical waste water
Fufen be quick adsorption process and at a slow speed adsorption process in quick adsorption process, long chain alkane, polycyclic aromatic hydrocarbon and nitrogen heterocyclic ring have
The strong absorbed component such as machine thing preferentially occupy adsorption potential on activated carbon at a slow speed adsorption process when, the polycyclic aromatic hydrocarbon in coking chemical waste water
It is relatively low relative to the concentration of single phenyl ring aromatic compound with nitrogen heterocyclic ring organic concentration, now single phenyl ring aromatic compound
Can occupy remaining adsorption potential on activated carbon, but after being occupied due to most adsorption potential, the absorption of Active Carbon in Organic
Efficiency can significantly decline, and adsorption capacity tends to saturation.And in decolorizing adsorbent of the invention, the work combined by different size
Property charcoal lift the macromolecular organic pollutions such as the adsorption efficiency of activated carbon, activated carbon A absorption long-chains aromatic hydrocarbons, polycyclic aromatic hydrocarbon, and
Activated carbon B primary attachments list phenyl ring aromatic compound and the less organic matter of number molecular weight, so in activated carbon composition
Form activated carbon A/ activated carbons B absorption complementations.
Raw water pump is Ordinary Centrifugal Pumps, 30~37kw of power in described decolorization adsorption groove；
PH meter and robot control system(RCS) are housed in described decolorization adsorption groove, the injection of sulfuric acid is adjusted by controlling pH robot control system(RCS)s
Amount；Transit mixer, power 0.5kw~4kw are housed in groove；
Described decolorizing adsorbent throwing device is pulvis administration device, and device is mainly by feed bin, delivery pump, central control system
Deng composition, the equipment is common apparatus；
The industrial sulphuric acid concentration of the addition is 93~98%, and sulfuric acid dosing pump is constant displacement pump；
The coagulation tank is concrete structures, and hydraulic detention time is 5mins-30mins；
PH meter and robot control system(RCS) are housed in described coagulation tank, the injection rate of liquid caustic soda is adjusted by controlling pH robot control system(RCS)s；
Transit mixer, power 0.5kw~4kw are housed in groove；
Described coagulation dosing pump is constant displacement pump；
The industrial lye of the addition is NaOH, and concentration is 30%；
Preferably, the aluminum sulfate solution concentration is 5-10%.
A kind of coking wastewater treatment agent of the invention, it is preferred that the iodine sorption value ＞ 400mg/ of the activated carbon A
G, ash content ＜ 6%；Iodine sorption value ＞ 500mg/g, ash content ＜ 14%.
Preferably, the aluminum sulfate solution concentration is 5-10%.
A kind of preparation method of coking wastewater treatment agent of the invention is that the decolouring is except the preparation method of cyanogen agent：Institute
Stating the preparation method of decolorizing adsorbent is：After activated carbon A, activated carbon B are sufficiently mixed in proportion, at 150-200 DEG C, dry
60-90 minutes.
Present invention also offers a kind of coking waste water treatment method, using above-mentioned coking wastewater treatment agent, including decolourize
Absorption and coagulation step, the method include：In decolorization adsorption, raw water pumping will be passed through by the biochemical raw water after biochemical treatment
To decolorization adsorption groove, pH is first adjusted to 5~7 in groove, by decolorizing adsorbent by adding concentration for 80-1000ppm is added to groove
Interior, stirring is sufficiently mixed with waste water, hydraulic detention time 15-60min；
In coagulation step, go out water mixed liquid by overflow to coagulation tank, pH is first adjusted to 7~9 in groove, by coagulant
Aluminum sulfate solution is injected into groove, adds concentration for 500~2000ppm, and stirring is sufficiently mixed with waste water, hydraulic detention time
5~20min.
Preferably, the concentration that adds of decolorizing adsorbent is 100-500ppm.
After coagulation step, according still further to the treatment of conventional depth reuse technology.(see Fig. 1.)
The product water pump is Ordinary Centrifugal Pumps, power 30kw~37kw；
Flow settling pond, concrete structures supplemented by the physico-chemical precipitation pond；
A kind of coking waste water treatment method of the invention, it is preferred that pH regulation by constant displacement pump acid adding or
Plus alkali is carried out.The industrial sulphuric acid concentration of the addition is 93~98%, and sulfuric acid dosing pump is constant displacement pump.Fluorine removal coagulation step
In, added by quantitative dosing pump.
A kind of coking waste water treatment method of the invention, it is preferred that the decolorizing adsorbent is added by pulvis
Device is added.Described decolorizing adsorbent throwing device is pulvis administration device, and device is mainly by feed bin, delivery pump, middle control
System etc. is constituted, and the equipment is common apparatus.
A kind of coking waste water treatment method of the invention, it is preferred that the decolorization adsorption groove is constructed for concrete
Thing, the hydraulic detention time in decolorization adsorption is 15min-30min.
A kind of coking waste water treatment method of the invention, it is preferred that the mass concentration of the aluminum sulfate solution is
5-10%.
Present invention also offers another coking waste water treatment method, using above-mentioned coking chemical waste water materializing strategy agent, bag
Decolorization adsorption and coagulation step are included, the method includes：In decolorization adsorption, original will be passed through by the biochemical raw water after biochemical treatment
Water pump is evacuated to decolouring except cyanogen groove, and pH first is adjusted into 3~7 in groove, by decolorizing adsorbent and coagulant by adding concentration 100-
3000ppm is successively added in groove, or will decolourize to be added in groove simultaneously except cyanogen agent and fluorine removal coagulant, and stirring is filled with waste water
Divide mixing, hydraulic detention time 15-60min；
In fluorine removal coagulation step, go out water mixed liquid by overflow to fluorine removal coagulation tank, pH be first adjusted to 6~8 in groove,
And stirring is sufficiently mixed with waste water, 5~20min of hydraulic detention time.
It is that decolorizing adsorbent and coagulant are decolourizing, except being added in cyanines groove or successively being added simultaneously, to take off in the method
Color adsorbent add concentration and coagulant add concentration respectively 100-3000ppm.Preferably, decolourize to be added except cyanogen agent
Concentration is 100-1000ppm, and fluorine removal coagulant dosage concentration is 500~2000ppm.
Using coking chemical waste water materilization freatment method of the invention and products thereof, treatment effect is stable, production run low cost,
Operation operation is easy, and handling process is short.The present invention uses the bio-chemical effluent of coking wastewater containing phenol and cyanide as raw water, raw water water
Matter：PH is 6-9, and COD is 200-500mg/l, and oil is 5~20mg/l, and suspension is 20~100mg/l, and T-CN is 3~15mg/
L, water temperature is 25-35 DEG C.
Beneficial effect：
1. Treatment of Coking Effluent difficulty is that cyanide, phenols, polycyclic aromatic hydrocarbon and heterocycle compound are difficult to be dropped by biology
Solution, biodegradability is poor.Adsorbent in the present invention is to utilize 2 kinds of activated carbon different pore size specifications, can be to different in waste water
The pollutant of molecular structure is more effectively adsorbed, and improves the adsorption efficiency of activated carbon.
2. the processing method can make reaction time shorten 10%-20%；Except COD effect promoting 10-25%, fortune is used
Row cost reduction 10%-50%, cost of investment reduction 20%-30%.
Water outlet is unable to reach coking chemistry emission of industrial pollutants standard, one after coking chemical waste water is processed through active sludge biological
As need further to carry out materializing strategy to reduce the characteristic contaminations such as the COD in coking chemical waste water, ammonia nitrogen, cyanide, phenol.This hair
Bright a kind of coking chemical waste water materilization freatment method and products thereof, not only shortens conventional process flow, reduces the treatment residence time,
Treatment effect is more stable simultaneously, medicament use cost is less expensive.
Brief description of the drawings
Fig. 1 is coking waste water treatment process flow chart.
Specific embodiment
Embodiment 1
1. the bio-chemical effluent (raw water) of coking chemical waste water is pumped to decolorization adsorption groove by raw water pump.Raw water quality：Raw water water
Matter：PH is that 8, COD is 350mg/l, and oil is 11mg/l, and suspension is 55mg/l, and T-CN is 5mg/l, and water temperature is 30 DEG C；
2. it is 6 to sulfuric acid, pH value is injected in groove by constant displacement pump；
3. decolorizing adsorbent is added to groove by pulvis throwing device, add concentration for 100ppm；Decolorizing adsorbent
Compound proportion and specification are as follows：Activated carbon A：Specific surface area 1200m2/ ml, aperture 20000nm, iodine sorption value 600mg/g, ash content
5%；Activated carbon B：Specific surface area 600m2/ ml, aperture 1000nm, iodine sorption value 700mg/g, ash content 5%.Activated carbon A：50%,
Activated carbon B：50%.
4. being stirred by mixer makes medicament be sufficiently mixed with water, and hydraulic detention time is 30mins, goes out water mixed liquid and leads to
Cross overflow to coagulation tank；
5. coagulation tank is entered by overflow by the water outlet after decolorization adsorption, processing industry liquid caustic soda is first passed through in groove first by pH
8 are adjusted to, coagulant is injected into groove by quantitative dosing pump, add concentration for 500ppm, and stirred and give up by mixer
Water is sufficiently mixed, hydraulic detention time 20mins；Coagulant uses the aluminum sulfate solution of concentration 10%.
6. by the mixed liquor water outlet after coagulation by pumping after sand filter is filtered to depth reuse film process
Device.
Embodiment 2
1. the bio-chemical effluent (raw water) of coking chemical waste water is pumped to decolorization adsorption groove by raw water pump.Raw water quality：Raw water water
Matter：PH is that 7.8, COD is 310mg/l, and oil is 10mg/l, and suspension is 40mg/l, and T-CN is 6.1mg/l, and water temperature is 28 DEG C；
2. it is 6 to sulfuric acid, pH value is injected in groove by constant displacement pump；
3. decolorizing adsorbent is added to groove by pulvis throwing device, add concentration for 110ppm；Decolorizing adsorbent
Compound proportion and specification are as follows：Activated carbon A：Specific surface area 750m2/ ml, aperture 8000nm, iodine sorption value 700mg/g, ash content
5%；Activated carbon B：Specific surface area 900m2/ ml, aperture 650nm, iodine sorption value 800mg/g, ash content 6%.Mass ratio：Activated carbon
A：40%, activated carbon B：60%.
4. being stirred by mixer makes medicament be sufficiently mixed with water, and hydraulic detention time is 30mins, goes out water mixed liquid and leads to
Cross overflow to coagulation tank；
5. coagulation tank is entered by overflow by the water outlet after decolorization adsorption, processing industry liquid caustic soda is first passed through in groove first by pH
8 are adjusted to, coagulant is injected into groove by quantitative dosing pump, add concentration for 550ppm, and stirred and give up by mixer
Water is sufficiently mixed, hydraulic detention time 20mins；Coagulant uses the aluminum sulfate solution of concentration 8%.
6. by the mixed liquor water outlet after coagulation by pumping after sand filter is filtered to depth reuse film process
Device.
Embodiment 3
1. the bio-chemical effluent (raw water) of coking chemical waste water is pumped to decolorization adsorption groove by raw water pump.Raw water quality：Raw water water
Matter：PH is that 7.5, COD is 280mg/l, and oil is 9.5mg/l, and suspension is 54mg/l, and T-CN is 5.8mg/l, and water temperature is 30 DEG C；
2. it is 6 to sulfuric acid, pH value is injected in groove by constant displacement pump；
3. decolorizing adsorbent is added to groove by pulvis throwing device, add concentration for 120ppm；
4. being stirred by mixer makes medicament be sufficiently mixed with water, and hydraulic detention time is 30mins, goes out water mixed liquid and leads to
Cross overflow to coagulation tank；
5. coagulation tank is entered by overflow by the water outlet after decolorization adsorption, processing industry liquid caustic soda is first passed through in groove first by pH
8 are adjusted to, coagulant is injected into groove by quantitative dosing pump, add concentration for 600ppm, and stirred and give up by mixer
Water is sufficiently mixed, hydraulic detention time 20mins；
6. by the mixed liquor water outlet after coagulation by pumping after sand filter is filtered to depth reuse film process
Device.
7. as follows through the effluent index after treatment：
Baosteel chemical industry advanced treatment system water inlet Con trolling index
| Sequence number | Pollutant project | Unit | Water inlet index | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| 1 | PH value | 6-9 | 8.1 | 8.1 | 7.9 | |
| 2 | Suspension | mg/l | ≤50 | 21 | 17 | 15 |
| 3 | Cl- | mg/l | ≤800 | 307 | 351 | 362 |
| 4 | Electrical conductivity | μs/cm | ≤8000 | 4530 | 5230 | 5580 |
| 5 | Evaporation residue | mg/l | -- | -- | -- | -- |
| 6 | COD | mg/l | ≤250 | 95 | 86 | 77 |
| 7 | Total cyanide | mg/l | ≤5 | 2.8 | 2.2 | 1.9 |
| 8 | Total iron | mg/l | ≤4.0 | 1.2 | 0.9 | 1.5 |
| 9 | Fluoride | mg/l | ≤80 | 30 | 28 | 36 |
| 10 | Total nitrogen | mg/l | ≤35 | 28 | 26 | 20 |
| 11 | Fully hard degree | mg/l | ≤150 | 85 | 96 | 98 |
| 12 | Sulfate radical | mg/l | ≤1300 | 863 | 772 | 769 |
1. the decolorizing adsorbent compound proportion and specification that above-described embodiment is used are as follows
Activated carbon A：Specific surface area 1000m2/ml
Aperture 15000nm
Iodine sorption value 800mg/g
Ash content 4%
Activated carbon B：Specific surface area 800m2/ml
Aperture 800nm
Iodine sorption value 700mg/g
Ash content 5%
The decolorizing adsorbent is constituted by following percentage by weight：
Activated carbon A：60%
Activated carbon B：40%
Coagulant uses concentration 5%-10% aluminum sulfate, implantation concentration 500-2000ppm.
2. decolorization adsorption groove described in is concrete structures, and hydraulic detention time is 30mins；
3. raw water pump is Ordinary Centrifugal Pumps, power 37kw in the decolorization adsorption groove described in；
4. pH meter and robot control system(RCS) are housed in the decolorization adsorption groove described in, the note of sulfuric acid is adjusted by controlling pH robot control system(RCS)s
Enter amount；Transit mixer, power 4kw are housed in groove；
5. the decolorizing adsorbent throwing device described in is pulvis administration device, and device is mainly by feed bin, delivery pump, middle control system
The composition such as system, the equipment is common apparatus；
6. the industrial sulphuric acid concentration added described in is 98%, and sulfuric acid dosing pump is constant displacement pump；
7. coagulation tank described in is concrete structures, and hydraulic detention time is 15mins；
8. pH meter and robot control system(RCS) are housed in the coagulation tank described in, the injection of liquid caustic soda is adjusted by controlling pH robot control system(RCS)s
Amount；Transit mixer, power 4kw are housed in groove；
9. the coagulation dosing pump described in is constant displacement pump；
10. the industrial lye added described in is NaOH, and concentration is 30%；
It is Ordinary Centrifugal Pumps, power 37kw that water pump is produced described in 11.；
Coagulant described in 12. is the aluminum sulfate of concentration 8%；
Adsorbent in the present invention is to utilize 2 kinds of activated carbon different pore size specifications, can be to different molecular structures in waste water
Pollutant more effectively adsorbed, improve the adsorption efficiency of activated carbon.Not only shorten conventional process flow, reduction treatment
Residence time, while treatment effect is more stable, medicament use cost is less expensive.
Claims (10)
1. a kind of coking wastewater treatment agent, it is characterised in that：The inorganic agent is formed by decolorizing adsorbent and coagulant mixture；
The decolorizing adsorbent includes following weight percent composition：Activated carbon A：25-60%, activated carbon B：25-50%；It is described
The specific surface area 600-1300m of activated carbon A2/ ml, aperture 800-25000nm；Activated carbon B：Specific surface area 500-1000m2/ ml,
Aperture 300-1200nm；
The coagulant is aluminum sulfate solution.
2. a kind of coking wastewater treatment agent according to claim 1, it is characterised in that：The iodine sorption value of the activated carbon A
＞ 400mg/g, ash content ＜ 6%；Iodine sorption value ＞ 500mg/g, ash content ＜ 14%.
3. a kind of coking wastewater treatment agent according to claim 1, it is characterised in that：The aluminum sulfate solution concentration is 5-
10%.
4. a kind of preparation method of coking wastewater treatment agent described in claim 1, it is characterised in that：The system of the decolorizing adsorbent
Preparation Method is：After activated carbon A, activated carbon B are sufficiently mixed in proportion, at 150-200 DEG C, dry 60-90 minutes.
5. a kind of coking waste water treatment method, it is characterised in that：Using the coking wastewater treatment agent described in claim 1, including
Decolorization adsorption and coagulation step, the method include：In decolorization adsorption, raw water will be passed through by the biochemical raw water after biochemical treatment
PH is first adjusted to 5~7 by pumping to decolorization adsorption groove in groove, by decolorizing adsorbent by adding concentration for 80-1000ppm is added
To groove, stirring is sufficiently mixed with waste water, hydraulic detention time 15-60min；
In coagulation step, go out water mixed liquid by overflow to coagulation tank, pH is first adjusted to 7~9 in groove, by coagulant sulfuric acid
Aluminum solutions are injected into groove, add concentration for 500~2000ppm, and stirring is sufficiently mixed with waste water, and hydraulic detention time 5~
20min。
6. a kind of coking waste water treatment method according to claim 5, it is characterised in that：The pH regulations pass through constant displacement pump
Acid adding adds alkali to carry out.
7. a kind of coking waste water treatment method according to claim 5, it is characterised in that：The decolorizing adsorbent passes through powder
Agent throwing device is added.
8. a kind of coking waste water treatment method according to claim 5, it is characterised in that：The decolorization adsorption groove is coagulation
Native structures, the hydraulic detention time in decolorization adsorption is 15min-30min.
9. a kind of coking waste water treatment method, it is characterised in that：Using the coking chemical waste water materializing strategy agent described in claim 1,
Including decolorization adsorption and coagulation step, the method includes：In decolorization adsorption, will pass through by the biochemical raw water after biochemical treatment
Raw water pump is evacuated to decolouring except cyanogen groove, and pH first is adjusted into 3~7 in groove, will decolourize except cyanogen agent and coagulant are by adding concentration 100-
3000ppm is successively added in groove, or will decolourize to be added in groove simultaneously except cyanogen agent and fluorine removal coagulant, and stirring is filled with waste water
Divide mixing, hydraulic detention time 15-60min；
In fluorine removal coagulation step, go out water mixed liquid by overflow to fluorine removal coagulation tank, pH is first adjusted to 6~8 in groove, and stir
Mix and be sufficiently mixed with waste water, 5~20min of hydraulic detention time.
10. a kind of coking waste water treatment method according to claim 9, it is characterised in that：The stirring uses mixer
Carry out.
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| CN201710103289.3A CN106830166A (en) | 2017-02-24 | 2017-02-24 | A kind of coking wastewater treatment agent, preparation method and processing method |
| PCT/CN2017/104050 WO2018153097A1 (en) | 2017-02-24 | 2017-09-28 | Method for bonding amorphous alloy electronic product housing and middle plate |
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