CN104591503B - A kind of sewage-treatment plant of Treatment of Wastewater in Coking - Google Patents
A kind of sewage-treatment plant of Treatment of Wastewater in Coking Download PDFInfo
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- CN104591503B CN104591503B CN201510044921.2A CN201510044921A CN104591503B CN 104591503 B CN104591503 B CN 104591503B CN 201510044921 A CN201510044921 A CN 201510044921A CN 104591503 B CN104591503 B CN 104591503B
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Abstract
The present invention relates to a kind of coking chemical waste water sewage-treatment plant, it includes the first anoxic pond, the second anoxic pond, the first Aerobic Pond, the 3rd anoxic pond, the 4th anoxic pond, the second Aerobic Pond, flocculation tank and depositing reservoir, wherein, anoxic pond includes three kinds of connected modes, at least adding active carbon filler at least one anoxic pond in anoxic pond in parallel, total dosage of described active carbon filler is 0.5-3g/L.Utilizing maximum 50% (even can simply be 10%) that the structure that the present invention designs, activated carbon injected volume are only former injected volume can realize the high-efficient purification of sewage, what be effectively saved activated carbon makes consumption.It addition, without additionally adding organic carbon source, it is not necessary to internal recycle, the efficient removal of nitrogen and other pollutant in simple realization coking chemical waste water.
Description
Technical field
The present invention relates to sewage treatment area, particularly relate to a kind of coking chemical waste water sewage-treatment plant and sewage water treatment method thereof.
Background technology
Coking chemical waste water is the industrial wastewater of the heterocycle containing the inorganic pollutions such as ammonia nitrogen in high density, cyanogen and thiocyanate and a large amount of difficult for biological degradation and the polycyclc aromatic compound produced in the dry distillation of coal, coal gas cooling, steel-making, the purification of coal gas and the production process of chemical products.
The materials such as the phenol in waste water, cyanogen, through the process of conventional activated sludge process, are had certain removal effect by coking chemical waste water, and to CODCrAnd the removal efficiency extreme difference of ammonia nitrogen.
Powdered activated carbon treatment process method not only maintains the advantage of traditional activated sludge process, significantly improves the clearance of organic and inorganic pollutant as well as the addition of acticarbon.This method once produce just because of its advantage in economy and treatment effeciency be widely used in industrial wastewater as: oil refining, petrochemical industry, dyeing waste water, coking chemical waste water, organic chemical waste water process, therefore powdered activated carbon treatment process is demonstrated by great interest and has carried out research extensively and profoundly by various countries environmentalist.
The preconditioning technique of coking chemical waste water conventional at present has hydrolysis acidification method, the sedimentation method, ultrasonic irradiation method and micro-electrolysis method.By the coupling with two stage treatment method (such as bioanalysises such as activated sludge processes), it is achieved effective process of coking chemical waste water.
But the waste water that said method processes still can not be fully achieved the requirement of country's water standard, has the process technique of more effective coking chemical waste water to be developed.
Summary of the invention
It is an object of the invention to overcome deficiency of the prior art, it is provided that a kind of coking chemical waste water sewage-treatment plant, the suitability is strong, simple and easy and efficient, is suitable to industrialization.
The present invention is achieved through the following technical solutions:
A kind of coking chemical waste water sewage-treatment plant (is referred to as " CBRS-R "), it includes the first anoxic pond, the second anoxic pond, the first Aerobic Pond, the 3rd anoxic pond, the 4th anoxic pond, the second Aerobic Pond, flocculation tank and depositing reservoir, and wherein, the connected mode of anoxic pond includes:
(1) first anoxic pond and the second anoxic pond are in parallel, and the 3rd anoxic pond and the 4th anoxic pond are linked in sequence；
(2) first anoxic pond and the second anoxic pond are in parallel, and the 3rd anoxic pond and the 4th anoxic pond are in parallel；Or
(3) first anoxic pond and the second anoxic pond are linked in sequence, and the 3rd anoxic pond and the 4th anoxic pond are in parallel；
Wherein, at least adding active carbon filler at least one anoxic pond in anoxic pond in parallel, total dosage of described active carbon filler is 0.5-3g/L.
According to the present invention, at least at least one in the anoxic pond being linked in sequence (series connection) also adds active carbon filler.
Preferably, in two anoxic pond in parallel, active carbon filler is all added.It is further preferred that all add active carbon filler in two anoxic pond of be linked in sequence (series connection).
It is highly preferred that all add active carbon filler in four anoxic pond.
According to the present invention, described active carbon filler all adds anoxic pond.
According to the present invention, the whole one-level of described active carbon filler adds, or classification adds.
According to the present invention, if what classification added, when planting situation for above-mentioned (1st), then the dosage in the first or second anoxic pond accounts for the 50-90% of total dosage, and the dosage in the 3rd or the 4th anoxic pond accounts for the 10-50% of total dosage.When planting situation for above-mentioned (2nd), the dosage in the first or second anoxic pond accounts for the 10-90% of total dosage, and the dosage in the 3rd or the 4th anoxic pond accounts for the 90-10% of total dosage.When planting situation for above-mentioned (3rd), the dosage in the first or second anoxic pond accounts for the 10-50% of total dosage, and the dosage in the 3rd or the 4th anoxic pond accounts for the 50-90% of total dosage.
According to the present invention, the dosing method of described active carbon filler include following (a), (b) or (c) any one:
A () is in parallel when the first anoxic pond and the second anoxic pond, when the 3rd anoxic pond and the 4th anoxic pond are linked in sequence:
(a.1) adding active carbon filler in the first anoxic pond, other three anoxic pond do not add, and the dosage of its active carbon filler is 0.5-3g/L；Preferred 0.6-2.8g/L, more preferably 1-2g/l；
(a.2) adding active carbon filler in the second anoxic pond, other three anoxic pond do not add, and the dosage of its active carbon filler is 0.5-3g/L；Preferred 0.6-2.8g/L, more preferably 1-2g/l；
(a.3) all adding active carbon filler in the first anoxic pond and the second anoxic pond, other two anoxic pond do not add, then the dosage in the first anoxic pond accounts for the 50-90% of total dosage, and the dosage in the second anoxic pond accounts for the 10-50% of total dosage.Preferably, the dosage in the first anoxic pond accounts for the 60-80% of total dosage, and the dosage in the second anoxic pond accounts for the 20-40% of total dosage.It is more preferred still that the dosage in described first anoxic pond accounts for the 65-75% of total dosage, the dosage in the second anoxic pond accounts for the 25-45% of total dosage.
(a.4) adding active carbon filler in the first anoxic pond, the second anoxic pond does not add, and at least one anoxic pond in the 3rd anoxic pond or the 4th anoxic pond adds active carbon filler, and wherein the dosage in the first anoxic pond accounts for the 50-90% of total dosage；The dosage of the 3rd anoxic pond, the 4th anoxic pond dosage, or the dosage in the 3rd anoxic pond and the 4th anoxic pond accounts for the 10-50% of total dosage.Preferably, the dosage of the first anoxic pond accounts for the 60-80% of total dosage or 65-75%.
(a.5) adding active carbon filler in the second anoxic pond, the first anoxic pond does not add, and at least one anoxic pond in the 3rd anoxic pond or the 4th anoxic pond adds active carbon filler, and wherein the dosage in the second anoxic pond accounts for the 50-90% of total dosage；The dosage of the 3rd anoxic pond, the 4th anoxic pond dosage, or the dosage in the 3rd anoxic pond and the 4th anoxic pond accounts for the 10-50% of total dosage.Preferably, the dosage of the second anoxic pond accounts for the 60-80% of total dosage or 65-75%.
(a.6) adding active carbon filler in the first and second anoxic pond, at least one anoxic pond in the 3rd anoxic pond or the 4th anoxic pond adds active carbon filler, and wherein the dosage in the first and second anoxic pond accounts for the 50-90% of total dosage；The dosage of the 3rd anoxic pond, the 4th anoxic pond dosage, or the dosage in the 3rd anoxic pond and the 4th anoxic pond accounts for the 10-50% of total dosage.Preferably, the dosage sum of the first anoxic pond and two anoxic pond accounts for the 60-80% of total dosage or 65-75%.
B () is in parallel when the 3rd anoxic pond and the 4th anoxic pond, when the first anoxic pond and the second anoxic pond are linked in sequence:
(b.1) adding active carbon filler in the 3rd anoxic pond, other three anoxic pond do not add, and the dosage of its active carbon filler is 0.5-3g/L；Preferred 0.6-2.8g/L, more preferably 1-2g/l；
(b.2) adding active carbon filler in the 4th anoxic pond, other three anoxic pond do not add, and the dosage of its active carbon filler is 0.5-3g/L；Preferred 0.6-2.8g/L, more preferably 1-2g/l；
(b.3) all adding active carbon filler in the 3rd anoxic pond and the 4th anoxic pond, other two anoxic pond do not add, then the dosage in the 3rd anoxic pond accounts for the 50-90% of total dosage, and the dosage in the 4th anoxic pond accounts for the 10-50% of total dosage.Preferably, the dosage in the 3rd anoxic pond accounts for the 60-80% of total dosage, and the dosage in the 4th anoxic pond accounts for the 20-40% of total dosage.It is more preferred still that the dosage in described 3rd anoxic pond accounts for the 65-75% of total dosage, the dosage in the 4th anoxic pond accounts for the 25-45% of total dosage.
(b.4) adding active carbon filler in the 3rd anoxic pond, the 4th anoxic pond does not add, and at least one anoxic pond in the first anoxic pond or the second anoxic pond adds active carbon filler, and wherein the dosage in the 3rd anoxic pond accounts for the 50-90% of total dosage；The dosage of the first anoxic pond, the second anoxic pond dosage, or the dosage in the first anoxic pond and the second anoxic pond accounts for the 10-50% of total dosage.Preferably, the dosage of the 3rd anoxic pond accounts for the 60-80% of total dosage or 65-75%.
(b.5) adding active carbon filler in the 4th anoxic pond, the 3rd anoxic pond does not add, and at least one anoxic pond in the first anoxic pond or the second anoxic pond adds active carbon filler, and wherein the dosage in the 4th anoxic pond accounts for the 50-90% of total dosage；The dosage of the first anoxic pond, the second anoxic pond dosage, or the dosage in the first anoxic pond and the second anoxic pond accounts for the 10-50% of total dosage.Preferably, the dosage of the 4th anoxic pond accounts for the 60-80% of total dosage or 65-75%.
(b.6) adding active carbon filler in the third and fourth anoxic pond, at least one anoxic pond in the first anoxic pond or the second anoxic pond adds active carbon filler, and wherein the dosage in the third and fourth anoxic pond accounts for the 50-90% of total dosage；The dosage of the first anoxic pond, the second anoxic pond dosage, or the dosage in the first anoxic pond and the second anoxic pond accounts for the 10-50% of total dosage.Preferably, the dosage sum of the 3rd anoxic pond and the 4th anoxic pond accounts for the 60-80% of total dosage or 65-75%.
C () is in parallel when the first anoxic pond and the second anoxic pond, when the 3rd anoxic pond and the 4th anoxic pond parallel connection:
(c.1) adding active carbon filler in the first anoxic pond, other three anoxic pond do not add, and the dosage of its active carbon filler is 0.5-3g/L；Preferred 0.6-2.8g/L, more preferably 1-2g/l；
(c.2) adding active carbon filler in the second anoxic pond, other three anoxic pond do not add, and the dosage of its active carbon filler is 0.5-3g/L；Preferred 0.6-2.8g/L, more preferably 1-2g/l；
(c.3) adding active carbon filler in the 3rd anoxic pond, other three anoxic pond do not add, and the dosage of its active carbon filler is 0.5-3g/L；Preferred 0.6-2.8g/L, more preferably 1-2g/l；
(c.4) adding active carbon filler in the 4th anoxic pond, other three anoxic pond do not add, and the dosage of its active carbon filler is 0.5-3g/L；Preferred 0.6-2.8g/L, more preferably 1-2g/l；
(c.5) all adding active carbon filler in the first anoxic pond and the second anoxic pond, other two anoxic pond do not add, then the dosage in the first anoxic pond accounts for the 50-90% of total dosage, and the dosage in the second anoxic pond accounts for the 10-50% of total dosage.Preferably, the dosage in the first anoxic pond accounts for the 60-80% of total dosage, and the dosage in the second anoxic pond accounts for the 20-40% of total dosage.It is more preferred still that the dosage in described first anoxic pond accounts for the 65-75% of total dosage, the dosage in the second anoxic pond accounts for the 25-45% of total dosage.
(c.6) adding active carbon filler in the first anoxic pond, the second anoxic pond does not add, and at least one anoxic pond in the 3rd anoxic pond or the 4th anoxic pond adds active carbon filler, and wherein the dosage in the first anoxic pond accounts for the 50-90% of total dosage；The dosage of the 3rd anoxic pond, the 4th anoxic pond dosage, or the dosage in the 3rd anoxic pond and the 4th anoxic pond accounts for the 10-50% of total dosage.Preferably, the dosage of the first anoxic pond accounts for the 60-80% of total dosage or 65-75%.
(c.7) adding active carbon filler in the second anoxic pond, the first anoxic pond does not add, and at least one anoxic pond in the 3rd anoxic pond or the 4th anoxic pond adds active carbon filler, and wherein the dosage in the second anoxic pond accounts for the 50-90% of total dosage；The dosage of the 3rd anoxic pond, the 4th anoxic pond dosage, or the dosage in the 3rd anoxic pond and the 4th anoxic pond accounts for the 10-50% of total dosage.Preferably, the dosage of the second anoxic pond accounts for the 60-80% of total dosage or 65-75%.
(c.8) adding active carbon filler in the first and second anoxic pond, at least one anoxic pond in the 3rd anoxic pond or the 4th anoxic pond adds active carbon filler, and wherein the dosage in the first and second anoxic pond accounts for the 50-90% of total dosage；The dosage of the 3rd anoxic pond, the 4th anoxic pond dosage, or the dosage in the 3rd anoxic pond and the 4th anoxic pond accounts for the 10-50% of total dosage.Preferably, the dosage sum of the first anoxic pond and the second anoxic pond accounts for the 60-80% of total dosage or 65-75%.
(c.9) all adding active carbon filler in the 3rd anoxic pond and the 4th anoxic pond, other two anoxic pond do not add, then the dosage in the 3rd anoxic pond accounts for the 50-90% of total dosage, and the dosage in the 4th anoxic pond accounts for the 10-50% of total dosage.Preferably, the dosage in the 3rd anoxic pond accounts for the 60-80% of total dosage, and the dosage in the 4th anoxic pond accounts for the 20-40% of total dosage.It is more preferred still that the dosage in described 3rd anoxic pond accounts for the 65-75% of total dosage, the dosage in the 4th anoxic pond accounts for the 25-45% of total dosage.
(c.10) adding active carbon filler in the 3rd anoxic pond, the 4th anoxic pond does not add, and at least one anoxic pond in the first anoxic pond or the second anoxic pond adds active carbon filler, and wherein the dosage in the 3rd anoxic pond accounts for the 50-90% of total dosage；The dosage of the first anoxic pond, the second anoxic pond dosage, or the dosage in the first anoxic pond and the second anoxic pond accounts for the 10-50% of total dosage.Preferably, the dosage of the 3rd anoxic pond accounts for the 60-80% of total dosage or 65-75%.
(c.11) adding active carbon filler in the 4th anoxic pond, the 3rd anoxic pond does not add, and at least one anoxic pond in the first anoxic pond or the second anoxic pond adds active carbon filler, and wherein the dosage in the 4th anoxic pond accounts for the 50-90% of total dosage；The dosage of the first anoxic pond, the second anoxic pond dosage, or the dosage in the first anoxic pond and the second anoxic pond accounts for the 10-50% of total dosage.Preferably, the dosage of the 4th anoxic pond accounts for the 60-80% of total dosage or 65-75%.
(c.12) adding active carbon filler in the third and fourth anoxic pond, at least one anoxic pond in the first anoxic pond or the second anoxic pond adds active carbon filler, and wherein the dosage in the third and fourth anoxic pond accounts for the 50-90% of total dosage；The dosage of the first anoxic pond, the second anoxic pond dosage, or the dosage in the first anoxic pond and the second anoxic pond accounts for the 10-50% of total dosage.Preferably, the dosage sum of the 3rd anoxic pond and the 4th anoxic pond accounts for the 60-80% of total dosage or 65-75%.
According to the present invention, when two anoxic pond in parallel all add active carbon filler, its addition can be identical or different.The active carbon filler dosage ratio of two anoxic pond in parallel can be (1～9): (9～1), can also be (2～8): (8～2), or (3～7): (7～3), (4～6): (6～4), or 5:5.
According to the present invention, when two anoxic pond being linked in sequence all add active carbon filler, its addition can be identical or different.The dosage ratio of the active carbon filler of two anoxic pond being linked in sequence can be (1～9): (9～1), can also be (2～8): (8～2), or (3～7): (7～3), (4～6): (6～4), or 5:5.
According to the present invention, described device also includes a pretreatment unit, and described pretreatment unit is a photoelectrocatalysioxidization oxidization device.
According to the present invention, described photoelectrocatalysioxidization oxidization device is made up of the electrocatalysis oxidation apparatus connected and photocatalytic oxidation device.
According to the present invention, the volume ratio of described first Aerobic Pond and the first anoxic pond is about 2:1, and the volume ratio of described first Aerobic Pond and the second anoxic pond is about 2:1.
According to the present invention, the volume ratio of described second Aerobic Pond and the 3rd anoxic pond is (2～1): 1, and the volume ratio of described second Aerobic Pond and the 4th anoxic pond is (2～1): 1.
According to the present invention, described sewage divides four strands to respectively enter the first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond.
According to the present invention, in the partition coefficient of described four strands of sewage, the partition coefficient n1 of the first anoxic pond represents, the partition coefficient n2 of the second anoxic pond represents, the partition coefficient n3 of the 3rd anoxic pond represents, the partition coefficient n4 of the 4th anoxic pond represents.When for above-mentioned (a) situation, (n1+n2): (n3+n4)=(6～9): (1～4), partition coefficient ratio (n1+n2): (n3+n4) can also be (7～8): (2～3).When for above-mentioned (b) situation, (n3+n4): (n1+n2)=(6～9): (1～4), partition coefficient ratio (n3+n4): (n1+n2) can also be (7～8): (2～3).When for above-mentioned (c) situation, then (n1+n2): (n3+n4)=(1～9): (9～1), can also be (2～8): (8～2), or (3～7): (7～3), (4～6): (6～4), or 5:5.According to the present invention, if described activated carbon is added in the first anoxic pond, then n1:n2=(6～9): (1～4), it is also possible to for (7～8): (2～3)；Otherwise, if described activated carbon is added in the second anoxic pond, then n1:n2=(1～4): (6～9), it is also possible to for (2～3): (7～8).If the first anoxic pond and the second anoxic pond all add activated carbon, then n1:n2=(1～9): (9～1), can also be (2～8): (8～2), or (3～7): (7～3), (4～6): (6～4), or 5:5.
According to the present invention, if described third and fourth anoxic pond is not added with activated carbon, then n3:n4=5:5；If described 3rd anoxic pond being added with activated carbon, then n3:n4=(6～9): (1～4), it is also possible to for (7～8): (2～3)；If described 4th anoxic pond being added with activated carbon, then n3:n4=(1～4): (6～9), it is also possible to for (2～3): (7～8).If the 3rd anoxic pond and the 4th anoxic pond all add activated carbon, then n3:n4=(1～9): (9～1), can also be (2～8): (8～2), or (3～7): (7～3), (4～6): (6～4), or 5:5.
According to the present invention, described first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond are provided with agitating device.
According to the present invention, described first Aerobic Pond and the second Aerobic Pond are provided with aerator.
According to the present invention, the residue biological carbon mud waste disposal of described depositing reservoir.
According to the present invention, the concentrated rear reuse of residue biological carbon mud of described depositing reservoir.
According to the present invention, the carbon mud of described reuse respectively enters the first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond.
According to the present invention, in the partition coefficient of the described carbon mud being back to anoxic pond, the partition coefficient m1 of the first anoxic pond represents, the partition coefficient m2 of the second anoxic pond represents, the partition coefficient m3 of the 3rd anoxic pond represents, the partition coefficient m4 of the 4th anoxic pond represents.When for above-mentioned (a) situation, and (m1+m2): (m3+m4)=(6～9): (1～4)；Partition coefficient ratio (m1+m2): (m3+m4) can also be (7～8): (2～3).When for above-mentioned (b) situation, (m3+m4): (m1+m2)=(6～9): (1～4), it is also possible to for (7～8): (2～3).When for above-mentioned (c) situation, then (m1+m2): (m3+m4)=(1～9): (9～1), can also be (2～8): (8～2), or (3～7): (7～3), (4～6): (6～4), or 5:5.
According to the present invention, if described activated carbon is added in the first anoxic pond, then m1:m2=(6～9): (1～4), it is also possible to for (7～8): (2～3)；Otherwise, if described activated carbon is added in the second anoxic pond, then m1:m2=(1～4): (6～9), it is also possible to for (2～3): (7～8).If the first anoxic pond and the second anoxic pond all add activated carbon, then m1:m2=(1～9): (9～1), can also be (2～8): (8～2), or (3～7): (7～3), (4～6): (6～4), or 5:5.
According to the present invention, if described third and fourth anoxic pond is not added with activated carbon, then m3:m4=5:5；If described 3rd anoxic pond being added with activated carbon, then m3:m4=(6～9): (1～4), it is also possible to for (7～8): (2～3)；If described 4th anoxic pond being added with activated carbon, then m3:m4=(1～4): (6～9).Can also be (2～3): (7～8).If the 3rd anoxic pond and the 4th anoxic pond all add activated carbon, then n3:n4=(1～9): (9～1), can also be (2～8): (8～2), or (3～7): (7～3), (4～6): (6～4), or 5:5.According to the present invention, the carbon mud of described reuse respectively enters the first Aerobic Pond and the second Aerobic Pond.
According to the present invention, in the partition coefficient of the described carbon mud being back to Aerobic Pond, the partition coefficient p1 of the first Aerobic Pond represents, the partition coefficient p2 of the second Aerobic Pond represents, and p1:p2=(6～9): (1～4), it is also possible to for (7～8): (2～3).
According to the present invention, without internal recycle between each Aerobic Pond and the anoxic pond of described device.
Apparatus of the invention particularly useful for the process of coking chemical waste water.Meanwhile, described device can be applicable to the process of other multiple sewage, including industrial wastewater as: oil refining, petrochemical industry, dyeing waste water, organic chemical waste water process；And municipal sewage treatment.
The invention has the beneficial effects as follows:
1, utilizing the structure that the present invention designs, activated carbon adopts single-stage or classification to throw in, and injected volume is only maximum 50% (even can simply be 10%) of former injected volume and can realize the high-efficient purification of sewage, and what be effectively saved activated carbon makes consumption.
2, adopt simple means in parallel, and organically combined traditional activated sludge process and Powdered Activated Carbon facture, it is not necessary to additionally add organic carbon source, it is not necessary to internal recycle, the efficient removal of nitrogen and other pollutant in simple realization coking chemical waste water.
3, when WAO technique that need not be traditional, it is also possible to realize effective reuse of biological carbon mud and the minimizing of sludge quantity (being only the 90% of traditional handicraft).
4, photochemical catalytic oxidation and By Electrocatalytic Oxidation are effectively combined, use it for the pretreatment of described coking chemical waste water, significantly improve the inorganic pollution such as cyanogen and thiocyanate of waste water and the clearance of the heterocycle of a large amount of difficult for biological degradation and polycyclc aromatic compound, be a kind of simple efficient sewage-treatment plant.
Accompanying drawing explanation
The structural representation of the sewage-treatment plant of the present invention in Fig. 1 embodiment 1
The structural representation of the sewage-treatment plant of the present invention in Fig. 2 embodiment 2
The structural representation of the sewage-treatment plant of the present invention in Fig. 3 embodiment 3
The structural representation of the sewage-treatment plant of the present invention in Fig. 4 embodiment 4
The structural representation of the sewage-treatment plant of the present invention in Fig. 5 embodiment 5
The structural representation of the sewage-treatment plant of the present invention in Fig. 6 embodiment 6
Detailed description of the invention
As it has been described above, the invention discloses coking chemical waste water sewage-treatment plant (to be referred to as " CBRS-R "); it includes the first anoxic pond, the second anoxic pond, the first Aerobic Pond, the 3rd anoxic pond, the 4th anoxic pond, the second Aerobic Pond, flocculation tank and depositing reservoir; wherein; the connected mode of anoxic pond includes: (1) first anoxic pond and the second anoxic pond are in parallel, and the 3rd anoxic pond and the 4th anoxic pond are linked in sequence；(2) first anoxic pond and the second anoxic pond are in parallel, and the 3rd anoxic pond and the 4th anoxic pond are in parallel；Or (3) first anoxic pond and the second anoxic pond be linked in sequence, the 3rd anoxic pond and the 4th anoxic pond are in parallel；Wherein, at least adding active carbon filler at least one anoxic pond in anoxic pond in parallel, total dosage of described active carbon filler is 0.5-3g/L.Compared with existing powdered activated carbon treatment process, the dosage of the active carbon filler in apparatus of the present invention is up to about the 50% of the dosage of existing device, its sludge quantity then only has the 90% even lower of existing powdered activated carbon treatment process, but total nitrogen and ammonia nitrogen amount after its device is properly functioning are then respectively lower than 15mg/L and 5.8mg/L (processing during other sewage such as municipal sewage lower), equal to even better than existing powdered activated carbon treatment process.
Specifically, the present invention uses the parallel-connection structure of one or two anoxic pond dexterously, namely achieved effective minimizing of described active carbon filler, effectively control again sludge quantity, and the process level and ability to coking chemical waste water is also greatly improved.Visible, the present invention passes through a simple structural design, solves problem efficiently, and adaptability is wide again, it is easy to industrialization.
It addition, a kind of pretreatment unit disclosed in the present invention, described pretreatment unit is a photoelectrocatalysioxidization oxidization device；Specifically, described photoelectrocatalysioxidization oxidization device is made up of the electrocatalysis oxidation apparatus connected and photocatalytic oxidation device.
Described photocatalytic oxidation device and electrocatalysis oxidation apparatus can be the devices for sewage disinfection treatment well known in the prior art.Wherein, photochemical catalytic oxidation is such as with TiO2For catalyst, H2O2Or ozone is oxidant, the process carried out under irradiation under ultraviolet ray.Electrocatalytic oxidation is exactly conventional electrocatalytic oxidation, and the anode of its electrolysis system is selected from Ti/PbO2Anode, titanio analysis chlorine anode and titanio analysis oxygen anodes, negative electrode is selected from Ti material negative electrode, Cu material negative electrode and Fe material negative electrode, and electric current density is at 15-50mA cm-2Between.
In the present invention, an electrocatalytic oxidation of connecting before described photochemical catalytic oxidation, needed for greatly reducing in photochemical catalytic oxidation, catalyst is (such as TiO2) amount, it is only necessary to the 10% of existing consumption can realize the effect same with prior art, solves described TiO2The problem of the secondary pollution brought.
One of the present invention preferred embodiment in, it is preferable that the amount of distribution activated carbon in different anoxic pond, specifically as previously mentioned.By such mode, having taken into account decrement and the efficiency of activated carbon, when decrement, efficiency improves on the contrary, better achieves the purpose of the present invention.
One of the present invention preferred embodiment in, it is preferable that the partition coefficient of sewage, specifically as previously mentioned.By such design, effectively combine the service efficiency of activated carbon and sewage, it has been found that in the scope that the present invention selects, activated carbon most effective；And the efficient removal of nitrogen can be realized completely without additional carbon；Moreover, it is achieved that can efficiently remove ammonia nitrogen and total nitrogen without internal recycle, greatly simplify equipment and operating cost.
One of the present invention preferred embodiment in, it is preferable that the partition coefficient of carbon mud, specifically as previously mentioned.By such design, effectively combine activated carbon and the service efficiency of carbon mud, it has been found that in the scope that the present invention selects, the efficient removal of nitrogen can be realized completely without additional carbon；Moreover, it is achieved that can efficiently remove ammonia nitrogen and total nitrogen without internal recycle, greatly simplify equipment and operating cost.Further, by such design, it is achieved that the further minimizing of sludge quantity, the efficient reuse efficiency of described carbon mud is also achieved.
Below in conjunction with specific embodiment, the present invention is further elaborated, but the present invention is not limited to following example.Described method is conventional method if no special instructions.Described raw material if no special instructions all can from being openly either commercially available.
Embodiment 1
As it is shown in figure 1, the inventive system comprises the first anoxic pond being connected in parallel and the second anoxic pond, the first Aerobic Pond, the 3rd anoxic pond being connected in parallel and the 4th anoxic pond, the second Aerobic Pond, flocculation tank and depositing reservoir.Having added active carbon filler in described first anoxic pond and the 3rd anoxic pond, dosage is 1.5g/L and 0.5g/L respectively.First anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond are provided with agitating device.First Aerobic Pond and the second Aerobic Pond are provided with aerator.It is not provided with internal recycle between each Aerobic Pond and anoxic pond.Sewage divides four strands to respectively enter the first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond, partition coefficient n1:n2:n3:n4=7:2:0.8:0.2.The volume ratio of the first Aerobic Pond and the first anoxic pond is 2:1, and the volume ratio of the first Aerobic Pond and the second anoxic pond is 2:1, and the volume ratio of the second Aerobic Pond and the 3rd anoxic pond is 1:1, and the volume ratio of the second Aerobic Pond and the 4th Aerobic Pond is 1:1.Residue biological carbon mud divides four strands to respectively enter the first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond, partition coefficient m1:m2:m3:m4=7:2:0.8:0.2.
Embodiment 2
As in figure 2 it is shown, the inventive system comprises the first anoxic pond being connected in parallel and the second anoxic pond, the first Aerobic Pond, the 3rd anoxic pond being connected in parallel and the 4th anoxic pond, the second Aerobic Pond, flocculation tank and depositing reservoir.Having added active carbon filler in described first anoxic pond and the 3rd anoxic pond, dosage is 0.7g/L and 0.3g/L respectively.First anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond are provided with agitating device.First Aerobic Pond and the second Aerobic Pond are provided with aerator.It is not provided with internal recycle between each Aerobic Pond and anoxic pond.Sewage divides four strands to respectively enter the first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond, partition coefficient n1:n2:n3:n4=7:1:1.6:0.4.The volume ratio of the first Aerobic Pond and the first anoxic pond is 2:1, and the volume ratio of the first Aerobic Pond and the second anoxic pond is 2:1, and the volume ratio of the second Aerobic Pond and the 3rd anoxic pond is 1.5:1, and the volume ratio of the second Aerobic Pond and the 4th Aerobic Pond is 1.5:1.Residue biological carbon mud divides two strands to respectively enter the first Aerobic Pond and the second Aerobic Pond, partition coefficient p1:p2=6:4.
Embodiment 3
As it is shown on figure 3, the inventive system comprises the first anoxic pond being connected in parallel and the second anoxic pond, the first Aerobic Pond, the 3rd anoxic pond being connected in parallel and the 4th anoxic pond, the second Aerobic Pond, flocculation tank and depositing reservoir.Having added active carbon filler in described first anoxic pond, dosage is 1.5g/L.First anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond are provided with agitating device.First Aerobic Pond and the second Aerobic Pond are provided with aerator.It is not provided with internal recycle between each Aerobic Pond and anoxic pond.Sewage divides four strands to respectively enter the first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond, partition coefficient n1:n2:n3:n4=5:1:3.5:0.5.The volume ratio of the first Aerobic Pond and the first anoxic pond is 2:1, and the volume ratio of the first Aerobic Pond and the second anoxic pond is 2:1, and the volume ratio of the second Aerobic Pond and the 3rd anoxic pond is 1.5:1, and the volume ratio of the second Aerobic Pond and the 4th Aerobic Pond is 1.5:1.Residue biological carbon mud divides two strands to respectively enter the first Aerobic Pond and the second Aerobic Pond, partition coefficient p1:p2=6:4.
Embodiment 4-6
Adding a pretreatment unit, the electrocatalytic oxidation namely connected and photocatalytic oxidation device before above-described embodiment 1-3, the anode in the electrolysis system of described electrocatalytic oxidation is Ti/PbO2Anode, negative electrode are Ti material negative electrode, electric current density is 20mA cm-2；Described photochemical catalytic oxidation is with TiO2For catalyst, H2O2For oxidant, carry out under irradiation under ultraviolet ray, wherein TiO2Consumption can reduce 10% to existing known consumption.
Comparative example 1
Traditional Powdered Activated Carbon processes device, and including anoxic pond, Aerobic Pond, flocculation tank and depositing reservoir, the addition of active carbon filler is 9g/L.
Comparative example 2
Traditional Powdered Activated Carbon processes-WAO device, including anoxic pond, Aerobic Pond, flocculation tank and depositing reservoir, and WAO system, the addition of active carbon filler is 8g/L.
Comparative example 3
Photocatalytic oxidation device, traditional Powdered Activated Carbon processes-WAO device, including anoxic pond, Aerobic Pond, flocculation tank and depositing reservoir, and WAO system, the addition of active carbon filler is 8g/L.
The device using comparative example 1-3 and embodiment 1-6 carries out the process of a kind of coking chemical waste water (its water quality is in Table 1) respectively, and the results are shown in Table 2 for it.
The water quality of table 1 coking chemical waste water
| CODAlways(mg/L) | 300-600 | Ammonia nitrogen (mg/L) | 33-55 |
| Total nitrogen (mg/L) | 40-65 | SS(mg/L) | 100-500 |
| Total phosphorus (mg/L) | 1.7-4.2 | pH | 6.5-7.5 |
Table 2
The device using comparative example 1-3 and embodiment 1-6 carries out the process of a kind of municipal sewage (its water quality is listed in table 3) respectively, and the results are shown in Table 4 for it.
The water quality of table 3 municipal sewage
| CODAlways(mg/L) | 200-400 | Ammonia nitrogen (mg/L) | 23-35 |
| Total nitrogen (mg/L) | 29-45 | SS(mg/L) | 40-400 |
| Total phosphorus (mg/L) | 1.8-4.0 | pH | 6.5-7.5 |
Table 4
It should be noted that above-described embodiment is used only to illustrate the technical characteristic of the present invention, it is not intended to limit the scope that the present invention is claimed.With the technical scheme same principle of the present application content part, still belong to the category that the present invention is claimed.
Claims (25)
1. a coking chemical waste water sewage-treatment plant, it includes the first anoxic pond, the second anoxic pond, the first Aerobic Pond, the 3rd anoxic pond, the 4th anoxic pond, the second Aerobic Pond, the flocculation tank being connected with described second Aerobic Pond order and depositing reservoir, wherein, the connected mode of four anoxic pond includes:
(1) first anoxic pond and the second anoxic pond are in parallel, and the 3rd anoxic pond and the 4th anoxic pond are linked in sequence；
(2) first anoxic pond and the second anoxic pond are in parallel, and the 3rd anoxic pond and the 4th anoxic pond are in parallel；Or
(3) first anoxic pond and the second anoxic pond are linked in sequence, and the 3rd anoxic pond and the 4th anoxic pond are in parallel；
Wherein, at least at least one anoxic pond in anoxic pond in parallel adds active carbon filler, and the dosage of described active carbon filler is 0.5-3g/L；
The dosing method of described active carbon filler include following (a), (b) or (c) any one:
A () is in parallel when the first anoxic pond and the second anoxic pond, when the 3rd anoxic pond and the 4th anoxic pond are linked in sequence:
(a.1) adding active carbon filler in the first anoxic pond, other three anoxic pond do not add, and the dosage of its active carbon filler is 0.5-3g/L；
(a.2) adding active carbon filler in the second anoxic pond, other three anoxic pond do not add, and the dosage of its active carbon filler is 0.5-3g/L；
(a.3) all adding active carbon filler in the first anoxic pond and the second anoxic pond, other two anoxic pond do not add, then the dosage in the first anoxic pond accounts for the 50-90% of total dosage, and the dosage in the second anoxic pond accounts for the 10-50% of total dosage；
(a.4) adding active carbon filler in the first anoxic pond, the second anoxic pond does not add, and at least one anoxic pond in the 3rd anoxic pond or the 4th anoxic pond adds active carbon filler, and wherein the dosage in the first anoxic pond accounts for the 50-90% of total dosage；The dosage of the 3rd anoxic pond, the 4th anoxic pond dosage, or the dosage in the 3rd anoxic pond and the 4th anoxic pond accounts for the 10-50% of total dosage；
(a.5) adding active carbon filler in the second anoxic pond, the first anoxic pond does not add, and at least one anoxic pond in the 3rd anoxic pond or the 4th anoxic pond adds active carbon filler, and wherein the dosage in the second anoxic pond accounts for the 50-90% of total dosage；The dosage of the 3rd anoxic pond, the 4th anoxic pond dosage, or the dosage in the 3rd anoxic pond and the 4th anoxic pond accounts for the 10-50% of total dosage；
(a.6) adding active carbon filler in the first and second anoxic pond, at least one anoxic pond in the 3rd anoxic pond or the 4th anoxic pond adds active carbon filler, and wherein the dosage in the first and second anoxic pond accounts for the 50-90% of total dosage；The dosage of the 3rd anoxic pond, the 4th anoxic pond dosage, or the dosage in the 3rd anoxic pond and the 4th anoxic pond accounts for the 10-50% of total dosage；
B () is in parallel when the 3rd anoxic pond and the 4th anoxic pond, when the first anoxic pond and the second anoxic pond are linked in sequence:
(b.1) adding active carbon filler in the 3rd anoxic pond, other three anoxic pond do not add, and the dosage of its active carbon filler is 0.5-3g/L；
(b.2) adding active carbon filler in the 4th anoxic pond, other three anoxic pond do not add, and the dosage of its active carbon filler is 0.5-3g/L；
(b.3) all adding active carbon filler in the 3rd anoxic pond and the 4th anoxic pond, other two anoxic pond do not add, then the dosage in the 3rd anoxic pond accounts for the 50-90% of total dosage, and the dosage in the 4th anoxic pond accounts for the 10-50% of total dosage；
(b.4) adding active carbon filler in the 3rd anoxic pond, the 4th anoxic pond does not add, and at least one anoxic pond in the first anoxic pond or the second anoxic pond adds active carbon filler, and wherein the dosage in the 3rd anoxic pond accounts for the 50-90% of total dosage；The dosage of the first anoxic pond, the second anoxic pond dosage, or the dosage in the first anoxic pond and the second anoxic pond accounts for the 10-50% of total dosage；
(b.5) adding active carbon filler in the 4th anoxic pond, the 3rd anoxic pond does not add, and at least one anoxic pond in the first anoxic pond or the second anoxic pond adds active carbon filler, and wherein the dosage in the 4th anoxic pond accounts for the 50-90% of total dosage；The dosage of the first anoxic pond, the second anoxic pond dosage, or the dosage in the first anoxic pond and the second anoxic pond accounts for the 10-50% of total dosage；
(b.6) adding active carbon filler in the third and fourth anoxic pond, at least one anoxic pond in the first anoxic pond or the second anoxic pond adds active carbon filler, and wherein the dosage in the third and fourth anoxic pond accounts for the 50-90% of total dosage；The dosage of the first anoxic pond, the second anoxic pond dosage, or the dosage in the first anoxic pond and the second anoxic pond accounts for the 10-50% of total dosage；
C () is in parallel when the first anoxic pond and the second anoxic pond, when the 3rd anoxic pond and the 4th anoxic pond parallel connection:
(c.1) adding active carbon filler in the first anoxic pond, other three anoxic pond do not add, and the dosage of its active carbon filler is 0.5-3g/L；
(c.2) adding active carbon filler in the second anoxic pond, other three anoxic pond do not add, and the dosage of its active carbon filler is 0.5-3g/L；
(c.3) adding active carbon filler in the 3rd anoxic pond, other three anoxic pond do not add, and the dosage of its active carbon filler is 0.5-3g/L；
(c.4) adding active carbon filler in the 4th anoxic pond, other three anoxic pond do not add, and the dosage of its active carbon filler is 0.5-3g/L；
(c.5) all adding active carbon filler in the first anoxic pond and the second anoxic pond, other two anoxic pond do not add, then the dosage in the first anoxic pond accounts for the 50-90% of total dosage, and the dosage in the second anoxic pond accounts for the 10-50% of total dosage；
(c.6) adding active carbon filler in the first anoxic pond, the second anoxic pond does not add, and at least one anoxic pond in the 3rd anoxic pond or the 4th anoxic pond adds active carbon filler, and wherein the dosage in the first anoxic pond accounts for the 50-90% of total dosage；The dosage of the 3rd anoxic pond, the 4th anoxic pond dosage, or the dosage in the 3rd anoxic pond and the 4th anoxic pond accounts for the 10-50% of total dosage；
(c.7) adding active carbon filler in the second anoxic pond, the first anoxic pond does not add, and at least one anoxic pond in the 3rd anoxic pond or the 4th anoxic pond adds active carbon filler, and wherein the dosage in the second anoxic pond accounts for the 50-90% of total dosage；The dosage of the 3rd anoxic pond, the 4th anoxic pond dosage, or the dosage in the 3rd anoxic pond and the 4th anoxic pond accounts for the 10-50% of total dosage；
(c.8) adding active carbon filler in the first and second anoxic pond, at least one anoxic pond in the 3rd anoxic pond or the 4th anoxic pond adds active carbon filler, and wherein the dosage in the first and second anoxic pond accounts for the 50-90% of total dosage；The dosage of the 3rd anoxic pond, the 4th anoxic pond dosage, or the dosage in the 3rd anoxic pond and the 4th anoxic pond accounts for the 10-50% of total dosage；
(c.9) all adding active carbon filler in the 3rd anoxic pond and the 4th anoxic pond, other two anoxic pond do not add, then the dosage in the 3rd anoxic pond accounts for the 50-90% of total dosage, and the dosage in the 4th anoxic pond accounts for the 10-50% of total dosage；
(c.10) adding active carbon filler in the 3rd anoxic pond, the 4th anoxic pond does not add, and at least one anoxic pond in the first anoxic pond or the second anoxic pond adds active carbon filler, and wherein the dosage in the 3rd anoxic pond accounts for the 50-90% of total dosage；The dosage of the first anoxic pond, the second anoxic pond dosage, or the dosage in the first anoxic pond and the second anoxic pond accounts for the 10-50% of total dosage；
(c.11) adding active carbon filler in the 4th anoxic pond, the 3rd anoxic pond does not add, and at least one anoxic pond in the first anoxic pond or the second anoxic pond adds active carbon filler, and wherein the dosage in the 4th anoxic pond accounts for the 50-90% of total dosage；The dosage of the first anoxic pond, the second anoxic pond dosage, or the dosage in the first anoxic pond and the second anoxic pond accounts for the 10-50% of total dosage；
(c.12) adding active carbon filler in the third and fourth anoxic pond, at least one anoxic pond in the first anoxic pond or the second anoxic pond adds active carbon filler, and wherein the dosage in the third and fourth anoxic pond accounts for the 50-90% of total dosage；The dosage of the first anoxic pond, the second anoxic pond dosage, or the dosage in the first anoxic pond and the second anoxic pond accounts for the 10-50% of total dosage.
2. device according to claim 1, it is characterised in that in (a.1), the dosage of active carbon filler is 0.6-2.8g/L；
(a.2), in, the dosage of active carbon filler is 0.6-2.8g/L；
(a.3) in, the dosage in the first anoxic pond accounts for the 60-80% of total dosage, and the dosage in the second anoxic pond accounts for the 20-40% of total dosage；
(a.4), in, the dosage of the first anoxic pond accounts for the 60-80% of total dosage；
(a.5), in, the dosage of the second anoxic pond accounts for the 60-80% of total dosage；
(a.6), in, the dosage sum of the first anoxic pond and two anoxic pond accounts for the 60-80% of total dosage；
(b.1), in, the dosage of active carbon filler is 0.6-2.8g/L；
(b.2), in, the dosage of active carbon filler is 0.6-2.8g/L；
(b.3) in, the dosage in the 3rd anoxic pond accounts for the 60-80% of total dosage, and the dosage in the 4th anoxic pond accounts for the 20-40% of total dosage；
(b.4), in, the dosage of the 3rd anoxic pond accounts for the 60-80% of total dosage；
(b.5), in, the dosage of the 4th anoxic pond accounts for the 60-80% of total dosage；
(b.6), in, the dosage sum of the 3rd anoxic pond and the 4th anoxic pond accounts for the 60-80% of total dosage；
(c.1), in, the dosage of active carbon filler is 0.6-2.8g/L；
(c.2), in, the dosage of active carbon filler is 0.6-2.8g/L；
(c.3), in, the dosage of active carbon filler is 0.6-2.8g/L；
(c.4), in, the dosage of active carbon filler is 0.6-2.8g/L；
(c.5) in, the dosage in the first anoxic pond accounts for the 60-80% of total dosage, and the dosage in the second anoxic pond accounts for the 20-40% of total dosage；
(c.6), in, the dosage of the first anoxic pond accounts for the 60-80% of total dosage；
(c.7), in, the dosage of the second anoxic pond accounts for the 60-80% of total dosage；
(c.8), in, the dosage sum of the first anoxic pond and the second anoxic pond accounts for the 60-80% of total dosage；
(c.9) in, the dosage in the 3rd anoxic pond accounts for the 60-80% of total dosage, and the dosage in the 4th anoxic pond accounts for the 20-40% of total dosage；
(c.10), in, the dosage of the 3rd anoxic pond accounts for the 60-80% of total dosage；
(c.11), in, the dosage of the 4th anoxic pond accounts for the 60-80% of total dosage；
(c.12), in, the dosage sum of the 3rd anoxic pond and the 4th anoxic pond accounts for the 60-80% of total dosage.
3. device according to claim 2, it is characterised in that in (a.1), the dosage of active carbon filler is 1-2g/l；
(a.2), in, the dosage of active carbon filler is 1-2g/l；
(a.3), in, the dosage in described first anoxic pond accounts for the 65-75% of total dosage, and the dosage in the second anoxic pond accounts for the 25-45% of total dosage；
(a.4), in, the dosage of the first anoxic pond accounts for the 65-75% of total dosage；
(a.5), in, the dosage of the second anoxic pond accounts for the 65-75% of total dosage；
(a.6), in, the dosage sum of the first anoxic pond and two anoxic pond accounts for the 65-75% of total dosage；
(b.1), in, the dosage of active carbon filler is 1-2g/l；
(b.2), in, the dosage of active carbon filler is 1-2g/l；
(b.3), in, the dosage in described 3rd anoxic pond accounts for the 65-75% of total dosage, and the dosage in the 4th anoxic pond accounts for the 25-45% of total dosage；
(b.4), in, the dosage of the 3rd anoxic pond accounts for the 65-75% of total dosage；
(b.5), in, the dosage of the 4th anoxic pond accounts for the 65-75% of total dosage；
(b.6), in, the dosage sum of the 3rd anoxic pond and the 4th anoxic pond accounts for the 65-75% of total dosage；
(c.1), in, the dosage of active carbon filler is 1-2g/l；
(c.2), in, the dosage of active carbon filler is 1-2g/l；
(c.3), in, the dosage of active carbon filler is 1-2g/l；
(c.4), in, the dosage of active carbon filler is 1-2g/l；
(c.5), in, the dosage in described first anoxic pond accounts for the 65-75% of total dosage, and the dosage in the second anoxic pond accounts for the 25-45% of total dosage；
(c.6), in, the dosage of the first anoxic pond accounts for the 65-75% of total dosage；
(c.7), in, the dosage of the second anoxic pond accounts for the 65-75% of total dosage；
(c.8), in, the dosage sum of the first anoxic pond and the second anoxic pond accounts for the 65-75% of total dosage；
(c.9), in, the dosage in described 3rd anoxic pond accounts for the 65-75% of total dosage, and the dosage in the 4th anoxic pond accounts for the 25-45% of total dosage；
(c.10), in, the dosage of the 3rd anoxic pond accounts for the 65-75% of total dosage；
(c.11), in, the dosage of the 4th anoxic pond accounts for the 65-75% of total dosage；
(c.12), in, the dosage sum of the 3rd anoxic pond and the 4th anoxic pond accounts for the 65-75% of total dosage.
4. device according to claim 1, it is characterised in that described device also includes a pretreatment unit, described pretreatment unit is a photoelectrocatalysioxidization oxidization device；Described photoelectrocatalysioxidization oxidization device is made up of the electrocatalysis oxidation apparatus connected and photocatalytic oxidation device.
5. device according to claim 1, it is characterised in that the volume ratio of described first Aerobic Pond and the first anoxic pond is 2:1, the volume ratio of described first Aerobic Pond and the second anoxic pond is 2:1.
6. device according to claim 5, it is characterised in that the volume ratio of described second Aerobic Pond and the 3rd anoxic pond is (2～1): 1, the volume ratio of described second Aerobic Pond and the 4th anoxic pond is (2～1): 1.
7. device according to claim 1, it is characterised in that described sewage divides four strands to respectively enter the first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond.
8. device according to claim 7, it is characterised in that in the partition coefficient of four strands of sewage, the partition coefficient n1 of the first anoxic pond represents, the partition coefficient n2 of the second anoxic pond represents, the partition coefficient n3 of the 3rd anoxic pond represents, the partition coefficient n4 of the 4th anoxic pond represents；
When for above-mentioned (a) situation, (n1+n2): (n3+n4)=(6～9): (1～4)；
When for above-mentioned (b) situation, (n3+n4): (n1+n2)=(6～9): (1～4)；
When for above-mentioned (c) situation, then (n1+n2): (n3+n4)=(1～9): (9～1).
9. device according to claim 8, it is characterised in that when for above-mentioned (a) situation, (n1+n2): (n3+n4)=(7～8): (2～3)；
When for above-mentioned (b) situation, (n3+n4): (n1+n2)=(7～8): (2～3)；
When for above-mentioned (c) situation, then (n1+n2): (n3+n4)=(2～8): (8～2).
10. device according to claim 9, it is characterised in that for above-mentioned (c) situation, (n1+n2): (n3+n4)=(3～7): (7～3).
11. device according to claim 10, it is characterised in that (n1+n2): (n3+n4)=(4～6): (6～4).
12. device according to claim 11, it is characterised in that (n1+n2): (n3+n4)=5:5.
13. the device according to any one of claim 1 to 12, it is characterised in that be provided with agitating device in described first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond；
Described first Aerobic Pond and the second Aerobic Pond are provided with aerator.
14. the device according to any one of claim 1 to 12, it is characterised in that the residue biological carbon mud waste disposal of described depositing reservoir.
15. the device according to any one of claim 1 to 12, it is characterised in that the concentrated rear reuse of residue biological carbon mud of described depositing reservoir.
16. device according to claim 15, it is characterised in that the carbon mud of concentrated rear reuse respectively enters the first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond.
17. device according to claim 16, it is characterized in that, it is back in the partition coefficient of carbon mud of anoxic pond, the partition coefficient m1 of the first anoxic pond represents, the partition coefficient m2 of the second anoxic pond represents, the partition coefficient m3 of the 3rd anoxic pond represents, the partition coefficient m4 of the 4th anoxic pond represents；
When for above-mentioned (a) situation, (m1+m2): (m3+m4)=(6～9): (1～4)；
When for above-mentioned (b) situation, (m3+m4): (m1+m2)=(6～9): (1～4)；
When for above-mentioned (c) situation, then (m1+m2): (m3+m4)=(1～9): (9～1).
18. device according to claim 17, it is characterised in that when for above-mentioned (a) situation, (m1+m2): (m3+m4)=(7～8): (2～3)；
When for above-mentioned (b) situation, (m3+m4): (m1+m2)=(7～8): (2～3)；
When for above-mentioned (c) situation, then (m1+m2): (m3+m4)=(2～8): (8～2).
19. device according to claim 18, it is characterised in that for above-mentioned (c) situation, (m1+m2): (m3+m4)=(3～7): (7～3).
20. device according to claim 19, it is characterised in that (m1+m2): (m3+m4)=(4～6): (6～4).
21. device according to claim 20, it is characterised in that (m1+m2): (m3+m4)=5:5.
22. device according to claim 15, it is characterised in that the carbon mud of concentrated rear reuse respectively enters the first Aerobic Pond and the second Aerobic Pond.
23. device according to claim 22, it is characterized in that, being back in the partition coefficient of carbon mud of Aerobic Pond, the partition coefficient p1 of the first Aerobic Pond represents, the partition coefficient p2 of the second Aerobic Pond represents, and p1:p2=(6～9): (1～4).
24. the device according to any one of claim 1 to 12, it is characterised in that without internal recycle between each Aerobic Pond and the anoxic pond of described device.
25. the device according to any one of claim 1 to 24 is for the process of coking chemical waste water.
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| DE19828175A1 (en) * | 1997-10-30 | 1999-12-30 | Sued Chemie Ag | Process for the treatment of process wastewater highly contaminated with ammonium in the wastewater area |
| CN101417850B (en) * | 2008-11-11 | 2010-10-13 | 江苏百纳环境工程有限公司 | Novel process for treating coking waste water by charging activated sludge process |
| CN101880109A (en) * | 2010-06-30 | 2010-11-10 | 中冶焦耐(大连)工程技术有限公司 | Full-denitrification treatment process of coked wastewater by adopting biological membrane method |
| CN102964021A (en) * | 2011-09-01 | 2013-03-13 | 中国石油化工股份有限公司 | Method for processing organic waste water |
| CN102515437A (en) * | 2011-12-21 | 2012-06-27 | 江苏省环境科学研究院 | Chemical industry park's wastewater bio-treatment apparatus and method thereof |
| CN203922931U (en) * | 2014-05-20 | 2014-11-05 | 陕西理工学院 | A kind of apparatus for treating carbonized waste water |
| CN104071897B (en) * | 2014-07-21 | 2015-11-04 | 太原理工大学 | Segmental influent multi-stage anaerobic/aerobic biological film method Treatment of Wastewater in Coking technique |
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