CN106865740A - A kind of coking chemical waste water biochemical system processes bio-carrier and application - Google Patents
A kind of coking chemical waste water biochemical system processes bio-carrier and application Download PDFInfo
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- CN106865740A CN106865740A CN201710102763.0A CN201710102763A CN106865740A CN 106865740 A CN106865740 A CN 106865740A CN 201710102763 A CN201710102763 A CN 201710102763A CN 106865740 A CN106865740 A CN 106865740A
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
- C02F2003/003—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms using activated carbon or the like
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
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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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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Abstract
The invention provides a kind of coking chemical waste water biochemical system treatment bio-carrier, the biological special efficacy carrier includes the composition of following mass percent：Activated carbon A：25 40%, activated carbon B：25 40%, diatomite：20 45%, slag micropowder：5% 40%.Application of the bio-carrier in terms of coking chemical waste water biochemical system disposal ability is strengthened is additionally provided simultaneously.Adsorbent in the present invention be using different activities charcoal and slag micropowder, it is diatomaceous combine, the pollutant of different molecular structures in waste water can more effectively be adsorbed, improve the adsorption efficiency of single-activity charcoal, the disposal ability of coking chemical waste water can be strengthened.
Description
Technical field
The present invention relates to field of waste water treatment, and in particular to a kind of useless combination water treatment agent of coking, and it is related to the treatment
The concrete application of agent.
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.
Coking chemical waste water is because pollutant concentration is high, complicated components, biodegradability are poor, while such waste water quality, water ripple
It is dynamic very big, therefore coking chemical waste water biochemical system is highly prone to impact, once being subject to the impact system recovery cycle more long, adjusts difficulty
It is larger.
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)
In order to meet increasingly strict standard requirement, it is necessary to the method for constantly researching and developing more preferable Treatment of Wastewater in Coking.
The content of the invention
Therefore, in order to strengthen the disposal ability of coking chemical waste water biochemical system, the technical problem to be solved in the present invention is to provide
A kind of special efficacy bio-carrier of more effective Treatment of Wastewater in Coking.The invention solves the problems that another technical problem be to provide the spy
Imitate the application of bio-carrier.
The technical scheme is that, a kind of coking chemical waste water biochemical system processes bio-carrier, the biological special efficacy carrier
Composition including following mass percent：Activated carbon A：25-40%, activated carbon B：25-40%, diatomite：20-45%, slag
Micro mist：5%-40%；
The activated carbon A：Specific surface area 400-800m2/ ml, aperture 1000-25000nm；The activated carbon B：Specific surface
Product 600-900m2/ ml, aperture 400-1000nm；
The diatomaceous particle diameter：0.01-1.5 μm, specific surface area：0.5-100㎡/g；The slag micropowder particle diameter：50-
1000 μm, iron content>10%, silicon content is between 0.1%-15%.
A kind of coking chemical waste water biochemical system treatment bio-carrier of the invention, it is preferred that the iodine of the activated carbon A
Adsorptive value 350-800mg/g, ash content ＜ 6%；Iodine sorption value the ＞ 850mg/g, ash content ＜ 14% of the activated carbon B.
A kind of coking chemical waste water biochemical system treatment bio-carrier of the invention, it is preferred that the diatomaceous grain
Footpath：0.01-1 μm, specific surface area：1-58㎡/g；The diatomaceous heap density：0.32-0.48g/ml.
A kind of coking chemical waste water biochemical system treatment bio-carrier of the invention, it is preferred that the slag micropowder grain
Footpath：100-500 μm, iron content>20%, silicon content is between 0.5%-10%.
Present invention also offers application of the above-mentioned bio-carrier in terms of coking chemical waste water biochemical system disposal ability is strengthened.
Application according to the present invention, it is preferred that in coking chemical waste water by the water outlet after ammonia still process, at the aerobic place of coking chemical waste water
Reason section, in the aerobic distributing trough of aerobic front of the slot, adds bio-carrier, dosage with amount of inlet water be calculated as 10mg/L~
2600mg/L。
Application according to the present invention, it is preferred that dosage is calculated as 30mg/L~800mg/L with amount of inlet water.
Application according to the present invention, it is preferred that the dosing method of the bio-carrier is directly to add, or will be described
Bio-carrier is made carrier pulp and adds again after mixing with water.
Further, when carrier is directly added, added by pulvis administration device；When being made carrier pulp and adding,
Slurries are pumped to by aerobic distributing trough by centrifugal pump, are sufficiently mixed with water inlet.
The basic handling flow of coking chemical waste water is shown in that Fig. 1 are mainly adjusted groove, anoxic groove, aerobic distributing trough, aerobic slot and
Stillpot.Special efficacy bio-carrier of the invention is added in aerobic distributing trough.
Adjustment tank
Adjustment tank is drawn to by ammonia still process water outlet pumping by the water outlet after ammonia still process treatment, the function of adjustment tank is to store and equal
The effect of even water quality, and waste water is pumped to by anoxic groove by adjustment tank delivery pump.
The adjustment tank is rectangle concrete structures, and hydraulic detention time is 50~100h；
The ammonia still process goes out water pump for centrifugal pump, material carbon steel；
The adjustment tank delivery pump is centrifugal pump, material carbon steel；
Anoxic groove
Adjustment tank water outlet is pumped to anoxic groove, anoxic groove treatment moisture 2 part by delivery pump：A part goes out for adjustment tank
Water, another part is the backflow mixed liquor of aerobic slot, and adjustment tank water outlet is 1 with the ratio of backflow mixed liquor:2-1:4.In anoxic
In groove, the NO2- and NO3- in waste water under anoxic conditions, are reduced to nitrogen effusion by the denitrifying bacteria in activated sludge, are reached
To the purpose of removing total nitrogen, the water outlet of anoxic groove is by overflow most intimate friend's oxygen distributing trough.
The anoxic groove is square concrete structures, and hydraulic detention time is 8-30h；
Diving mixer 2 is provided with the anoxic groove, is respectively provided at anoxic groove diagonal, height is respectively liquid in groove
The eminence and lower of position；It act as uniformly mixing muddy water, and mixer is material carbon steel.
Aerobic distributing trough
The water outlet of anoxic groove is by the way that in overflow most intimate friend's oxygen distributing trough, the special efficacy bio-carrier invented herein is added at aerobic point
With in groove, and by overflow to aerobic slot.
Described special efficacy carrier can be mixed according to the ratio of claim with pure water, be made mixed liquid concentration for 5-
10% carrier pulp, and slurries are pumped to by aerobic distributing trough by centrifugal pump, it is sufficiently mixed with the water inlet of anoxic groove.
Described special efficacy carrier dosing method be by pulvis administration device, device mainly by filler bin, pure water water inlet pipe,
Delivery pump, central control system etc. are constituted, and the equipment is common apparatus；
The aerobic distributing trough is square concrete structures, residence time 1h-2h.
Aerobic slot
Aerobic distributing trough water outlet passes through in overflow to aerobic slot, its work of the waste water in nitrifier that will mainly enter aerobic slot
NO2- and NO3- is oxidized to the lower NH3-N by water.During need to add liquid caustic soda supplement alkali source and regulation waste water PH.For
The foam that aerobic slot is produced is reduced, froth breaking Water spray pipeline is set above aerobic slot.Micro-pore aeration diaphragm is set in aerobic slot
Continuous oxygen supply, it is ensured that the activity of sludge.Aerobic slot goes out the tunnel of moisture 2：To anoxic groove, another road enters secondary flow to mixed-liquor return all the way
Formula sedimentation basin.A part of sludge is returned to aerobic front of the slot as supplement sludge by sludge pump for sedimentation basin bottom.
The aerobic slot is rectangle concrete structures, and hydraulic detention time is 30~80h；
The supplement liquid caustic soda is NaOH, and concentration is 30%；Pump is added for constant displacement pump, PH is provided with aerobic slot and is examined online
Survey instrument；
The spray froth breaking water is industry water；
The material that the micro-pore aeration diaphragm is used is EPDM, and aeration supervisor is UPVC, and Aeration fan is roots-type；
The sludge reflux pump is centrifugal pump, material carbon steel.
Using a kind of reinforcing coking chemical waste water biochemical system disposal ability method and associated biomolecule special efficacy carrier of the invention, adopt
Water outlet is used as raw water, raw water quality after being processed with the ammonia still process of coking wastewater containing phenol and cyanide：PH is 6-9, and COD is 2000~3000mg/l,
Phenol is 15~200mg/l, and ammonia nitrogen is 200~250mg/l, and oil is 15~20mg/l, and T-CN is 10~15mg/l, and water temperature is 25-
35℃。
Powdered Activated Carbon has huge specific surface area and very strong adsorptivity, and adsorbent is typically used as in water process,
Colourity, smell, organic pollution of waste water etc. are removed to adsorb；Diatomite porosity is high, specific surface area big and surface is in negative electricity
Property.With certain adsorption capacity, while sludge can be helped to form stability flco higher；Mineral matter (slag micropowder) contains
Ferro element, is good bio-stimulant, can improve growth of microorganism speed, and silicon can help to sludge settling.
The biological special efficacy carrier medicament can not only utilize the different aperture of 2 kinds of pulvis to different qualities in coking chemical waste water
Organic pollution is more effectively adsorbed, while the carrier of special efficacy biological flora is utilized it as, it is solid by Powdered Activated Carbon
Determine biological flora, form it into big flco, reduce the loss of effective bacterium, strengthen the settleability of sludge flco；For microorganism carries
For nutrient source, the reply speed after lifting its speed of growth and being hit.Residence time of the organic matter in processing system is extended,
Be conducive to treatment of the enhancement microbiological to hard-degraded substance, improve biochemical system impact resistance.
Beneficial effects of the present invention：
1. optionally using the adsorbent of different pore size and characterization of adsorption, including different size activated carbon and diatom
Soil, for characteristic contamination in coking chemical waste water, selectively adsorbs, so as to reduce the bio-toxicity of waste water so that microorganism
System impact resistance is lifted, disposal ability lifting；
2. optionally using the adsorbent of different pore size and characterization of adsorption, including different size activated carbon and diatom
Soil, selective absorption is carried out for the autotrophic bacterium in coking chemical waste water Aerobic Process for Treatment system and heterotroph, and fixed biological flora makes
It forms big flco, reduces the loss of effective bacterium, strengthens the settleability of sludge flco, so as to improve disposal ability；
3. Powdered Activated Carbon has huge specific surface area and very strong adsorptivity, and absorption is typically used as in water process
Agent, colourity, smell, organic pollution of waste water etc. are removed to adsorb；Diatomite porosity is high, specific surface area big and surface is in
Elecrtonegativity.With certain adsorption capacity, while sludge can be helped to form stability flco higher；Mineral matter (slag micropowder)
It is good bio-stimulant containing ferro element, growth of microorganism speed can be improved, silicon can help to sludge settling；
4. diatomite is due to substantial amounts of, ordered arrangement micropore so that specific surface area of diatomite is very big, therefore silicon
Diatomaceous earth has very strong absorption affinity and adsorption capacity.Its surface carries elecrtonegativity, comes for positively charged colloidal attitude pollutant
Say, he can make elimination of colloid stability by charge neutrality.Because diatomite is with low cost, can be as the efficient substitute of activated carbon
It is applied in combination with activated carbon.On the other hand, it is the food source of Microbial Communities in Activated Sludge due to being rich in organic matter in diatomite
One of, promote microorganism to grow up；
5. the slag micropowder for being compounded, can provide the trace elements such as iron for microorganism, promote the production of microorganism, while
With absorption property, activated carbon and diatomite can be assisted to fix flora as the nucleus of sludge flco, form bigger flco,
Biochemical treatment ability and system impact resistance are provided., used as the byproduct after blast fumance, production cost is extremely for slag micropowder
It is cheap.Experiment finds that the thinner slag micropowder of particle diameter has an adsorptivity higher, and the thicker slag micropowder of particle diameter can be as
The nucleus of coagulation flco, accelerates the sedimentation of flco.2 kinds of slag micropowders of different-grain diameter specification and adsorbent, coagulant are answered
Match somebody with somebody, medicament use cost is further reduced while being arranged outside standard water discharge.
6. by activated carbon+diatomite+slag micropowder three unification, mutually synergy enables sludge more effective to the present invention
Formation bulky grain flco, while providing the growth that the necessary trace element of Microbial Communities in Activated Sludge promotes effective flora, make
Biochemical system activated sludge concentration is high, settling property is good, impact resistance more preferably.
Brief description of the drawings
Fig. 1 is coking waste water treatment process flow chart.
Specific embodiment
Embodiment 1
1. adjustment tank, raw water quality are drawn to by ammonia still process water outlet pumping by the water outlet after ammonia still process treatment：PH is 7.8, COD
It is 2250mg/l, phenol is 65mg/l, and ammonia nitrogen is 220mg/l, and oil is 16mg/l, and T-CN is 12mg/l, and water temperature is 28 DEG C.
2. adjustment tank water outlet is pumped to anoxic groove, anoxic groove treatment moisture 2 part by delivery pump：A part is adjustment tank
Water outlet, another part is the backflow mixed liquor of aerobic slot, and adjustment tank water outlet is 1 with the ratio of backflow mixed liquor:3, anoxic groove goes out
Water is by overflow most intimate friend's oxygen distributing trough.
3. the water outlet of anoxic groove is by overflow most intimate friend's oxygen distributing trough, being mixed special efficacy carrier and pure water by pulvis administration device
Added in aerobic distributing trough after the slurries for synthesizing concentration 10%, and by overflow to aerobic slot, special efficacy carrier solids dosage
It is 30mg/l (with influent waste water gauge).In the present embodiment biological special efficacy carrier by 2 kinds of activated carbons of different size, a kind of silicon
Diatomaceous earth and a kind of mineral matter are formulated in proportion, are constituted by following percentage by weight：Activated carbon A：40%, activated carbon B：30%,
Diatomite：20%, mineral matter (slag micropowder)：10%.Activated carbon A：Specific surface area 500m2/ ml, aperture 1500nm, iodine absorption
Value 400mg/g, ash content ＜ 6%, activated carbon B：Specific surface area 600m2/ ml, aperture 450nm, iodine sorption value 900mg/g, ash content
＜ 14%.Diatomite particle diameter：0.5 μm, specific surface area：30 ㎡/g, heap density：0.38g/ml.Slag micropowder particle diameter：200 μm, contain
Iron>20%, silicon content is 2%.
4. aerobic distributing trough water outlet is by the way that in overflow to aerobic slot, aerobic slot goes out the tunnel of moisture 2：All the way mixed-liquor return to lack
Oxygen groove, another road enters auxiliary flow settling pond.A part of sludge is returned to aerobic front of the slot by sedimentation basin bottom by sludge pump
As supplement sludge.
Embodiment 2
1. adjustment tank, raw water quality are drawn to by ammonia still process water outlet pumping by the water outlet after ammonia still process treatment：PH is 7.5, COD
It is 2050mg/l, phenol is 70mg/l, and ammonia nitrogen is 200mg/l, and oil is 15mg/l, and T-CN is 10mg/l, and water temperature is 29 DEG C.
2. adjustment tank water outlet is pumped to anoxic groove, anoxic groove treatment moisture 2 part by delivery pump：A part is adjustment tank
Water outlet, another part is the backflow mixed liquor of aerobic slot, and adjustment tank water outlet is 1 with the ratio of backflow mixed liquor:3, anoxic groove goes out
Water is by overflow most intimate friend's oxygen distributing trough.
3. the water outlet of anoxic groove is by overflow most intimate friend's oxygen distributing trough, being mixed special efficacy carrier and pure water by pulvis administration device
Added in aerobic distributing trough after the slurries for synthesizing concentration 10%, and by overflow to aerobic slot, special efficacy carrier solids dosage
It is 50mg/l (with influent waste water gauge).
Biological special efficacy carrier is pressed by 2 kinds of activated carbons of different size, a kind of diatomite and a kind of mineral matter in the present embodiment
Proportions are formed, and are constituted by following percentage by weight：Activated carbon A：35%, activated carbon B：35%, diatomite：20%, mineral
Matter (slag micropowder)：10%.
Activated carbon A：Specific surface area 600m2/ ml, aperture 5000nm, iodine sorption value 600mg/g, ash content ＜ 6%, activated carbon
B：Specific surface area 700m2/ ml, aperture 800nm, iodine sorption value 950mg/g, ash content ＜ 14%.Diatomite particle diameter：0.2 μm, than
Surface area：20 ㎡/g, heap density：0.4g/ml.Slag micropowder particle diameter：500 μm, iron content>20%, silicon content is 5%.
4. aerobic distributing trough water outlet is by the way that in overflow to aerobic slot, aerobic slot goes out the tunnel of moisture 2：All the way mixed-liquor return to lack
Oxygen groove, another road enters auxiliary flow settling pond.A part of sludge is returned to aerobic front of the slot by sedimentation basin bottom by sludge pump
As supplement sludge.
Embodiment 3
1. adjustment tank, raw water quality are drawn to by ammonia still process water outlet pumping by the water outlet after ammonia still process treatment：PH is 8.2, COD
It is 2540mg/l, phenol is 62mg/l, and ammonia nitrogen is 205mg/l, and oil is 17mg/l, and T-CN is 16mg/l, and water temperature is 30 DEG C.
2. adjustment tank water outlet is pumped to anoxic groove, anoxic groove treatment moisture 2 part by delivery pump：A part is adjustment tank
Water outlet, another part is the backflow mixed liquor of aerobic slot, and adjustment tank water outlet is 1 with the ratio of backflow mixed liquor:3, anoxic groove goes out
Water is by overflow most intimate friend's oxygen distributing trough.
3. the water outlet of anoxic groove is by overflow most intimate friend's oxygen distributing trough, being mixed special efficacy carrier and pure water by pulvis administration device
Added in aerobic distributing trough after the slurries for synthesizing concentration 10%, and by overflow to aerobic slot, special efficacy carrier solids dosage
It is 100mg/l (with influent waste water gauge).
4. aerobic distributing trough water outlet is by the way that in overflow to aerobic slot, aerobic slot goes out the tunnel of moisture 2：All the way mixed-liquor return to lack
Oxygen groove, another road enters auxiliary flow settling pond.A part of sludge is returned to aerobic front of the slot by sedimentation basin bottom by sludge pump
As supplement sludge.
Biochemical system effluent index
1. in embodiment described above biological special efficacy carrier preparation method：The product by 2 kinds of activated carbons of different size,
1 kind of diatomite and a kind of mineral matter are formulated in proportion, are constituted by following percentage by weight：Activated carbon A：30%, activated carbon B：
40%, diatomite：15%, mineral matter (slag micropowder)：15%.
Activated carbon A：Specific surface area 800m2/ ml, aperture 15000nm, iodine sorption value 650mg/g, ash content ＜ 6%, activated carbon
B：Specific surface area 800m2/ ml, aperture 900nm, iodine sorption value 950mg/g, ash content ＜ 14%.Diatomite particle diameter：0.8 μm, than
Surface area：45 ㎡/g, heap density：0.5g/ml.Slag micropowder particle diameter：400 μm, iron content>20%, silicon content is 8%.
2. adjustment tank described in is rectangle concrete structures, and hydraulic detention time is 80h；
3. ammonia still process described in goes out water pump for centrifugal pump, material carbon steel；
4. adjustment tank delivery pump described in is centrifugal pump, material carbon steel；
5. anoxic groove described in is square concrete structures, and hydraulic detention time is 15h；
6. diving mixer 2 is provided with anoxic groove described in, is respectively provided at anoxic groove diagonal, height is respectively in groove
The eminence and lower of liquid level；It act as uniformly mixing muddy water, and mixer is material carbon steel.
7. the special efficacy carrier described in is mixed with pure water according to the ratio of claim, is made mixed liquid concentration and is
10% carrier pulp, and slurries are pumped to by aerobic distributing trough by centrifugal pump, it is sufficiently mixed with the water inlet of anoxic groove.
8. the special efficacy carrier dosing method described in is that, by pulvis administration device, device is mainly intake by filler bin, pure water
Pipe, delivery pump, central control system etc. are constituted, and the equipment is common apparatus；
9. aerobic distributing trough described in is square concrete structures, residence time 1.5h.
10. aerobic slot described in is rectangle concrete structures, and hydraulic detention time is 50h；
It is NaOH that liquid caustic soda is supplemented described in 11., and concentration is 30%；Pump is added for constant displacement pump, PH is provided with aerobic slot and is existed
Line detector；
It is industry water that froth breaking water is sprayed described in 12.；
The material that micro-pore aeration diaphragm described in 13. is used is EPDM, and aeration supervisor is UPVC, and Aeration fan is Roots
Formula；
Sludge reflux pump described in 14. is centrifugal pump, material carbon steel.
Adsorbent in the present invention be using different activities charcoal and slag micropowder, it is diatomaceous combine, can be in waste water
The pollutant of different molecular structures is more effectively adsorbed, and improves the adsorption efficiency of single-activity charcoal, can be strengthened coking and be given up
The disposal ability of water.
Claims (9)
1. a kind of coking chemical waste water biochemical system processes bio-carrier, it is characterised in that：The biological special efficacy carrier includes following matter
Measure the composition of percentage：Activated carbon A：25-40%, activated carbon B：25-40%, diatomite：20-45%, slag micropowder：5%-
40%；
The activated carbon A：Specific surface area 400-800m2/ ml, aperture 1000-25000nm；The activated carbon B：Specific surface area 600-
900m2/ ml, aperture 400-1000nm；
The diatomaceous particle diameter：0.01-1.5 μm, specific surface area：0.5-100㎡/g；The slag micropowder particle diameter：50-1000
μm, iron content>10%, silicon content is between 0.1%-15%.
2. a kind of coking chemical waste water biochemical system according to claim 1 processes bio-carrier, it is characterised in that：The activity
The iodine sorption value 350-800mg/g of charcoal A, ash content ＜ 6%；Iodine sorption value the ＞ 850mg/g, ash content ＜ 14% of the activated carbon B.
3. a kind of coking chemical waste water biochemical system according to claim 1 processes bio-carrier, it is characterised in that：The diatom
The particle diameter of soil：0.01-1 μm, specific surface area：1-58㎡/g；The diatomaceous heap density：0.32-0.48g/ml.
4. a kind of coking chemical waste water biochemical system according to claim 1 processes bio-carrier, it is characterised in that：The slag
Grain size of micropowder：100-500 μm, iron content>20%, silicon content is between 0.5%-10%.
5. application of the bio-carrier described in claim 1 in terms of coking chemical waste water biochemical system disposal ability is strengthened.
6. application according to claim 5, it is characterised in that：It is useless in coking in coking chemical waste water by the water outlet after ammonia still process
Water Aerobic Process for Treatment section, in the aerobic distributing trough of aerobic front of the slot, adds bio-carrier, and dosage is calculated as with amount of inlet water
10mg/L~2600mg/L.
7. application according to claim 5, it is characterised in that：Dosage is calculated as 30mg/L~800mg/ with amount of inlet water
L。
8. application according to claim 5, it is characterised in that：The dosing method of the bio-carrier is directly to add, or
Person is made carrier pulp and adds again after the bio-carrier is mixed with water.
9. application according to claim 8, it is characterised in that：When carrier is directly added, thrown by pulvis administration device
Plus；When being made carrier pulp and adding, slurries are pumped to by aerobic distributing trough by centrifugal pump, are sufficiently mixed with water inlet.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108545823A (en) * | 2018-03-12 | 2018-09-18 | 江苏蓝必盛化工环保股份有限公司 | A kind of bio-carrier charcoal and preparation method thereof containing various trace elements |
| CN109368926A (en) * | 2018-11-19 | 2019-02-22 | 中化环境控股有限公司 | A kind of sewage treatment micron vectors and sewage disposal system and method |
| CN114011843A (en) * | 2021-11-12 | 2022-02-08 | 长春黄金研究院有限公司 | Method for treating cyanide-containing wastewater by utilizing cyanide tailings |
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| US20030226805A1 (en) * | 2002-06-06 | 2003-12-11 | Industrial Technology Research Institute | Method of wastewater treatment with biological active carbon using recycled oxygen-enriched water and apparatus used therein |
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| CN101077815A (en) * | 2007-06-21 | 2007-11-28 | 北京科技大学 | Deep treatment method for coking waste water |
| CN101544421A (en) * | 2008-03-25 | 2009-09-30 | 宝山钢铁股份有限公司 | Method for treating coking wastewater |
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| CN109368926A (en) * | 2018-11-19 | 2019-02-22 | 中化环境控股有限公司 | A kind of sewage treatment micron vectors and sewage disposal system and method |
| CN114011843A (en) * | 2021-11-12 | 2022-02-08 | 长春黄金研究院有限公司 | Method for treating cyanide-containing wastewater by utilizing cyanide tailings |
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