CN204588918U - A kind of waste disposal plant of Treatment of Wastewater in Coking - Google Patents
A kind of waste disposal plant of Treatment of Wastewater in Coking Download PDFInfo
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- CN204588918U CN204588918U CN201520061902.6U CN201520061902U CN204588918U CN 204588918 U CN204588918 U CN 204588918U CN 201520061902 U CN201520061902 U CN 201520061902U CN 204588918 U CN204588918 U CN 204588918U
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Abstract
The utility model relates to a kind of waste disposal plant of Treatment of Wastewater in Coking, it comprises 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 settling pond, also comprise a pretreatment unit, wherein, anoxic pond comprises three kinds of mode of connection, active carbon filler is added at least one anoxic pond at least in the anoxic pond of parallel connection, at least one anoxic pond in the described anoxic pond be linked in sequence also adds active carbon filler, and total dosage of described active carbon filler is 0.5-3g/L.Utilize the structure that the utility model designs, maximum 50% (even can be only 10%) that gac injected volume is only former injected volume can realize the high-efficient purification of sewage, have effectively saved the usage quantity of gac.In addition, without the need to additionally adding organic carbon source, without the need to internal recycle, the efficient removal of nitrogen and other pollutents in simple realization coking chemical waste water.
Description
Technical field
The utility model relates to sewage treatment area, particularly relates to a kind of coking chemical waste water waste disposal plant.
Background technology
Coking chemical waste water be produce in the dry distillation of coal, coal gas cooling, steel-making, the purification of coal gas and the production process of Chemicals containing the inorganic pollutants such as ammonia nitrogen in high density, cyanogen and thiocyanate and a large amount of heterocycle of difficult for biological degradation and the trade effluent of polycyclc aromatic compound.
Coking chemical waste water, through the process of conventional activated sludge process, has certain removal effect to materials such as the phenol in waste water, cyanogen, and to COD
crand the removal efficiency extreme difference of ammonia nitrogen.
Powdered activated carbon treatment process, the method not only maintains the advantage of traditional activated sludge process, also significantly improves the clearance of organic and inorganic pollutent due to adding of acticarbon simultaneously.This method once produce just because of its advantage in economy and processing efficiency be widely used in trade effluent as: the process of oil refining, petrochemical complex, dyeing waste water, coking chemical waste water, organic chemical waste water, therefore various countries environmentalist has showed great interest to powdered activated carbon treatment process and has carried out research extensively and profoundly.
The preconditioning technique of coking chemical waste water conventional at present has hydrolysis acidification method, the precipitator method, ultrasound wave irradiation method and micro-electrolysis method.By the coupling with second-stage treatment method (as biological processes such as activated sludge processes), realize effective process of coking chemical waste water.
But the waste water of aforesaid method process still can not reach the requirement of national water quality standard completely, has the treatment process of more effective coking chemical waste water to be developed.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art, provides a kind of coking chemical waste water waste disposal plant, and suitability is strong, simple and easy and efficient, is suitable for industrialization.
The utility model is achieved through the following technical solutions:
A kind of coking chemical waste water waste disposal plant (is referred to as " CBR
s-R "), it comprises 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 settling pond, and wherein, the mode of connection of anoxic pond comprises:
(1) first anoxic pond and the parallel connection of the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond are linked in sequence;
(2) first anoxic pond and the parallel connection of the second anoxic pond, the 3rd anoxic pond and the parallel connection of the 4th anoxic pond; Or
(3) first anoxic pond and the second anoxic pond are linked in sequence, the 3rd anoxic pond and the parallel connection of the 4th anoxic pond;
Wherein, add active carbon filler at least one anoxic pond at least in the anoxic pond of parallel connection, total dosage of described active carbon filler is 0.5-3g/L.
According to the utility model, at least one at least in the anoxic pond being linked in sequence (series connection) also adds active carbon filler.
Preferably, in two anoxic pond of parallel connection, all active carbon filler is added.Also preferably, in two anoxic pond of be linked in sequence (series connection), all active carbon filler is added.
More preferably, in four anoxic pond, gac condiment is all added.
According to the utility model, described active carbon filler all adds anoxic pond.
According to the utility model, the whole one-level of described active carbon filler adds, or classification adds.
According to the utility model, if classification adds, when planting situation for above-mentioned (1), then the dosage in the first or second anoxic pond accounts for the 50-90% of total dosage, the dosage in the 3rd or the 4th anoxic pond accounts for the 10-50% of total dosage.When planting situation for above-mentioned (2), 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 (3), 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 utility model, the dosing method of described active carbon filler comprise following (a), (b) or (c) any one:
(a) when the first anoxic pond and the second anoxic pond in parallel, when the 3rd anoxic pond and the 4th anoxic pond are linked in sequence:
(a.1) in the first anoxic pond, add active carbon filler, 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) in the second anoxic pond, add active carbon filler, 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) in the first anoxic pond and the second anoxic pond, all add active carbon filler, 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.Also more preferably, 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 first anoxic pond, add active carbon filler, 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 the dosage wherein in the first anoxic pond accounts for the 50-90% of total dosage; The dosage of the 3rd anoxic pond, the dosage of the 4th anoxic pond, 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) in the second anoxic pond, add active carbon filler, 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 the dosage wherein in the second anoxic pond accounts for the 50-90% of total dosage; The dosage of the 3rd anoxic pond, the dosage of the 4th anoxic pond, 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) in the first and second anoxic pond, add active carbon filler, at least one anoxic pond in the 3rd anoxic pond or the 4th anoxic pond adds active carbon filler, and the dosage wherein in the first and second anoxic pond accounts for the 50-90% of total dosage; The dosage of the 3rd anoxic pond, the dosage of the 4th anoxic pond, 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) when the 3rd anoxic pond and the 4th anoxic pond in parallel, when the first anoxic pond and the second anoxic pond are linked in sequence:
(b.1) in the 3rd anoxic pond, add active carbon filler, 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) in the 4th anoxic pond, add active carbon filler, 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) in the 3rd anoxic pond and the 4th anoxic pond, all add active carbon filler, 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.Also more preferably, 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 3rd anoxic pond, add active carbon filler, 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 the dosage wherein in the 3rd anoxic pond accounts for the 50-90% of total dosage; The dosage of the first anoxic pond, the dosage of the second anoxic pond, 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) in the 4th anoxic pond, add active carbon filler, 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 the dosage wherein in the 4th anoxic pond accounts for the 50-90% of total dosage; The dosage of the first anoxic pond, the dosage of the second anoxic pond, 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) in the third and fourth anoxic pond, add active carbon filler, at least one anoxic pond in the first anoxic pond or the second anoxic pond adds active carbon filler, and the dosage wherein in the third and fourth anoxic pond accounts for the 50-90% of total dosage; The dosage of the first anoxic pond, the dosage of the second anoxic pond, 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) when the first anoxic pond and the second anoxic pond in parallel, the 3rd anoxic pond and the 4th anoxic pond in parallel time:
(c.1) in the first anoxic pond, add active carbon filler, 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) in the second anoxic pond, add active carbon filler, 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) in the 3rd anoxic pond, add active carbon filler, 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) in the 4th anoxic pond, add active carbon filler, 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) in the first anoxic pond and the second anoxic pond, all add active carbon filler, 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.Also more preferably, 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 first anoxic pond, add active carbon filler, 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 the dosage wherein in the first anoxic pond accounts for the 50-90% of total dosage; The dosage of the 3rd anoxic pond, the dosage of the 4th anoxic pond, 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) in the second anoxic pond, add active carbon filler, 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 the dosage wherein in the second anoxic pond accounts for the 50-90% of total dosage; The dosage of the 3rd anoxic pond, the dosage of the 4th anoxic pond, 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) in the first and second anoxic pond, add active carbon filler, at least one anoxic pond in the 3rd anoxic pond or the 4th anoxic pond adds active carbon filler, and the dosage wherein in the first and second anoxic pond accounts for the 50-90% of total dosage; The dosage of the 3rd anoxic pond, the dosage of the 4th anoxic pond, 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) in the 3rd anoxic pond and the 4th anoxic pond, all add active carbon filler, 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.Also more preferably, 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 3rd anoxic pond, active carbon filler is added, 4th anoxic pond does not add, at least one anoxic pond in the first anoxic pond or the second anoxic pond adds active carbon filler, and the dosage wherein in the 3rd anoxic pond accounts for the 50-90% of total dosage; The dosage of the first anoxic pond, the dosage of the second anoxic pond, 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) in the 4th anoxic pond, active carbon filler is added, 3rd anoxic pond does not add, at least one anoxic pond in the first anoxic pond or the second anoxic pond adds active carbon filler, and the dosage wherein in the 4th anoxic pond accounts for the 50-90% of total dosage; The dosage of the first anoxic pond, the dosage of the second anoxic pond, 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) in the third and fourth anoxic pond, add active carbon filler, at least one anoxic pond in the first anoxic pond or the second anoxic pond adds active carbon filler, and the dosage wherein in the third and fourth anoxic pond accounts for the 50-90% of total dosage; The dosage of the first anoxic pond, the dosage of the second anoxic pond, 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 utility model, when two anoxic pond of parallel connection all add active carbon filler, its add-on 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 utility model, when two anoxic pond be linked in sequence all add active carbon filler, its add-on can be identical or different.The dosage ratio of the active carbon filler of two anoxic pond be 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 utility model, described device also comprises a pretreatment unit, and described pretreatment unit is a photoelectrocatalysioxidization oxidization device.
According to the utility model, described photoelectrocatalysioxidization oxidization device is made up of the electrocatalysis oxidation apparatus of connecting and photocatalytic oxidation device.
According to the utility model, 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 utility model, 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 utility model, described sewage divides four stocks not enter the first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond.
According to the utility model, in the partition ratio of described four strands of sewage, the partition ratio of the first anoxic pond represents with n1, and the partition ratio of the second anoxic pond represents with n2, and the partition ratio of the 3rd anoxic pond represents with n3, and the partition ratio of the 4th anoxic pond represents with n4.When for above-mentioned (a) situation, (n1+n2): (n3+n4)=(6 ~ 9): (1 ~ 4), partition ratio 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 ratio 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 utility model, if described gac is added in the first anoxic pond, then n1:n2=(6 ~ 9): (1 ~ 4), can also be (7 ~ 8): (2 ~ 3); Otherwise if described gac is added in the second anoxic pond, then n1:n2=(1 ~ 4): (6 ~ 9), can also be (2 ~ 3): (7 ~ 8).If all add gac in the first anoxic pond and the second anoxic pond, 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 utility model, if do not add gac in described third and fourth anoxic pond, then n3:n4=5:5; If be added with gac in described 3rd anoxic pond, then n3:n4=(6 ~ 9): (1 ~ 4), can also be (7 ~ 8): (2 ~ 3); If be added with gac in described 4th anoxic pond, then n3:n4=(1 ~ 4): (6 ~ 9), can also be (2 ~ 3): (7 ~ 8).If all add gac in the 3rd anoxic pond and the 4th anoxic pond, 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 utility model, in described first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond, be provided with whipping appts.
According to the utility model, in described first Aerobic Pond and the second Aerobic Pond, be provided with aerating apparatus.
According to the utility model, the residue biological carbon mud waste disposal of described settling pond.
According to the utility model, residue biological carbon mud reuse after concentrated of described settling pond.
According to the utility model, the carbon mud of described reuse enters the first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond respectively.
According to the utility model, in the partition ratio of the described carbon mud being back to anoxic pond, the partition ratio of the first anoxic pond represents with m1, and the partition ratio of the second anoxic pond represents with m2, the partition ratio of the 3rd anoxic pond represents with m3, and the partition ratio of the 4th anoxic pond represents with m4.When for above-mentioned (a) situation, and (m1+m2): (m3+m4)=(6 ~ 9): (1 ~ 4); Partition ratio 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), can also be (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 utility model, if described gac is added in the first anoxic pond, then m1:m2=(6 ~ 9): (1 ~ 4), can also be (7 ~ 8): (2 ~ 3); Otherwise if described gac is added in the second anoxic pond, then m1:m2=(1 ~ 4): (6 ~ 9), can also be (2 ~ 3): (7 ~ 8).If all add gac in the first anoxic pond and the second anoxic pond, 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 utility model, if do not add gac in described third and fourth anoxic pond, then m3:m4=5:5; If be added with gac in described 3rd anoxic pond, then m3:m4=(6 ~ 9): (1 ~ 4), can also be (7 ~ 8): (2 ~ 3); If be added with gac in described 4th anoxic pond, then m3:m4=(1 ~ 4): (6 ~ 9).Can also be (2 ~ 3): (7 ~ 8).If all add gac in the 3rd anoxic pond and the 4th anoxic pond, 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 utility model, the carbon mud of described reuse enters the first Aerobic Pond and the second Aerobic Pond respectively.
According to the utility model, in the partition ratio of the described carbon mud being back to Aerobic Pond, the partition ratio of the first Aerobic Pond represents with p1, the partition ratio of the second Aerobic Pond represents with p2, and p1:p2=(6 ~ 9): (1 ~ 4), can also be (7 ~ 8): (2 ~ 3).
According to the utility model, without the need to internal recycle between each Aerobic Pond of described device and anoxic pond.
Device of the present utility model is specially adapted to the process of coking chemical waste water.Meanwhile, described device can also be applicable to the process of other multiple sewage, comprises trade effluent as the process of oil refining, petrochemical complex, dyeing waste water, organic chemical waste water; And municipal sewage treatment.
The beneficial effects of the utility model are:
1, the structure utilizing the utility model to design, gac adopts single-stage or classification to throw in, and maximum 50% (even can be only 10%) that injected volume is only former injected volume can realize the high-efficient purification of sewage, have effectively saved the usage quantity of gac.
2, adopt simple means in parallel, and organically combine traditional activated sludge process and Powdered Activated Carbon facture, without the need to additionally adding organic carbon source, without the need to internal recycle, the efficient removal of nitrogen and other pollutents in simple realization coking chemical waste water.
3, when not needing traditional WAO technique, effective reuse of biological carbon mud and the minimizing of sludge quantity (being only 90% of traditional technology) can also be realized.
4, photochemical catalytic oxidation and By Electrocatalytic Oxidation is effectively combined, use it for the pre-treatment of described coking chemical waste water, significantly improving the inorganic pollutants such as the cyanogen of waste water and thiocyanate and the heterocycle of a large amount of difficult for biological degradation and the clearance of polycyclc aromatic compound, is a kind of simple waste disposal plant efficiently.
Accompanying drawing explanation
The structural representation of the waste disposal plant of the present utility model in Fig. 1 embodiment 1.
The structural representation of the waste disposal plant of the present utility model in Fig. 2 embodiment 2.
The structural representation of the waste disposal plant of the present utility model in Fig. 3 embodiment 3.
The structural representation of the waste disposal plant of the present utility model in Fig. 4 embodiment 4.
The structural representation of the waste disposal plant of the present utility model in Fig. 5 embodiment 5.
The structural representation of the waste disposal plant of the present utility model in Fig. 6 embodiment 6.
Embodiment
As mentioned above, the utility model discloses coking chemical waste water waste disposal plant (" CBR
s-R "); it comprises 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 settling pond; wherein; the mode of connection of anoxic pond comprises: (1) first anoxic pond and the parallel connection of the second anoxic pond, and the 3rd anoxic pond and the 4th anoxic pond are linked in sequence; (2) first anoxic pond and the parallel connection of the second anoxic pond, the 3rd anoxic pond and the parallel connection of the 4th anoxic pond; Or (3) first anoxic pond and the second anoxic pond be linked in sequence, the 3rd anoxic pond and the 4th anoxic pond in parallel; Wherein, add active carbon filler at least one anoxic pond at least in the anoxic pond of parallel connection, 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 the utility model device is up to about 50% of the dosage of existing device, its sludge quantity then only has 90% of existing powdered activated carbon treatment process even lower, but the normal postrun total nitrogen of its device and ammonia nitrogen amount then respectively lower than 15mg/L and 5.8mg/L (processing other sewage as lower during municipal effluent), equal even to be better than existing powdered activated carbon treatment process.
Specifically, in the utility model, use the parallel-connection structure of one or two anoxic pond dexterously, namely achieved effective minimizing of described active carbon filler, effectively control sludge quantity again, and the processing horizontal of coking chemical waste water and ability have also been improved greatly.Visible, the utility model, by a simple structure design, solves problem efficiently, and adaptability is wide again, is easy to industrialization.
In addition, disclose a kind of pretreatment unit in the utility model, described pretreatment unit is a photoelectrocatalysioxidization oxidization device; Specifically, described photoelectrocatalysioxidization oxidization device is made up of the electrocatalysis oxidation apparatus of connecting 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 TiO
2for catalyzer, H
2o
2or the process that ozone is oxygenant, carries out under UV-irradiation.Catalytic oxidation is exactly conventional catalytic oxidation, and the anode of its electrolytic system can be selected from Ti/PbO
2chlorine anode analysed by anode, titanium base and oxygen anodes analysed by titanium base, and negative electrode can be selected from Ti material negative electrode, Cu material negative electrode and Fe material negative electrode, and current density is at 15-50mAcm
-2between.
In the utility model, a catalytic oxidation of connecting before described photochemical catalytic oxidation, needed for greatly reducing in photochemical catalytic oxidation, catalyzer is (as TiO
2) amount, only need 10% of existing consumption can realize the effect same with prior art, solve described TiO
2the problem of the secondary pollution brought.
Of the present utility model one preferred embodiment in, the preferred amount being distributed in the gac in different anoxic pond, specifically as previously mentioned.By such mode, taken into account decrement and the efficiency of gac, when decrement, efficiency improves on the contrary, better achieves the purpose of this utility model.
Of the present utility model one preferred embodiment in, the preferred partition ratio of sewage, specifically as previously mentioned.By such design, effectively combine the service efficiency of gac and sewage, applicant finds, in the scope that the utility model is selected, and gac most effective; And the efficient removal of nitrogen can be realized completely without the need to additional carbon; In addition, achieve and can efficiently remove ammonia nitrogen and total nitrogen without the need to internal recycle, greatly simplify equipment and running cost.
Of the present utility model one preferred embodiment in, the preferred partition ratio of carbon mud, specifically as previously mentioned.By such design, effectively combine the service efficiency of gac and carbon mud, applicant finds, in the scope that the utility model is selected, can realize the efficient removal of nitrogen completely without the need to additional carbon; In addition, achieve and can efficiently remove ammonia nitrogen and total nitrogen without the need to internal recycle, greatly simplify equipment and running cost.Further, by such design, achieve the further minimizing of sludge quantity, also achieve the efficient reuse efficiency of described carbon mud.
Below in conjunction with specific embodiment, the utility model is further elaborated, but the utility model is not limited to following examples.Described method is ordinary method if no special instructions.Described starting material all can obtain from open commercial sources if no special instructions.
Embodiment 1
As shown in Figure 1, device of the present utility model comprises the first anoxic pond and the second anoxic pond, the first Aerobic Pond, the 3rd anoxic pond be connected in parallel and the 4th anoxic pond, the second Aerobic Pond, flocculation tank and settling pond that are connected in parallel.Added active carbon filler in described first anoxic pond and the 3rd anoxic pond, dosage is respectively 1.5g/L and 0.5g/L.Whipping appts is provided with in first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond.Aerating apparatus is provided with in first Aerobic Pond and the second Aerobic Pond.Between each Aerobic Pond and anoxic pond, internal recycle is not set.Sewage divides four stocks not enter the first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond, partition ratio 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 stocks not enter the first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond, partition ratio m1:m2:m3:m4=7:2:0.8:0.2.
Embodiment 2
As shown in Figure 2, device of the present utility model comprises the first anoxic pond and the second anoxic pond, the first Aerobic Pond, the 3rd anoxic pond be connected in parallel and the 4th anoxic pond, the second Aerobic Pond, flocculation tank and settling pond that are connected in parallel.Added active carbon filler in described first anoxic pond and the 3rd anoxic pond, dosage is respectively 0.7g/L and 0.3g/L.Whipping appts is provided with in first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond.Aerating apparatus is provided with in first Aerobic Pond and the second Aerobic Pond.Between each Aerobic Pond and anoxic pond, internal recycle is not set.Sewage divides four stocks not enter the first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond, partition ratio 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 stocks not enter the first Aerobic Pond and the second Aerobic Pond, partition ratio p1:p2=6:4.
Embodiment 3
As shown in Figure 3, device of the present utility model comprises the first anoxic pond and the second anoxic pond, the first Aerobic Pond, the 3rd anoxic pond be connected in parallel and the 4th anoxic pond, the second Aerobic Pond, flocculation tank and settling pond that are connected in parallel.Added active carbon filler in described first anoxic pond, dosage is 1.5g/L.Whipping appts is provided with in first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond.Aerating apparatus is provided with in first Aerobic Pond and the second Aerobic Pond.Between each Aerobic Pond and anoxic pond, internal recycle is not set.Sewage divides four stocks not enter the first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond, partition ratio 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 stocks not enter the first Aerobic Pond and the second Aerobic Pond, partition ratio p1:p2=6:4.
Embodiment 4-6
Before above-described embodiment 1-3, add a pretreatment unit, the catalytic oxidation of namely connecting and photocatalytic oxidation device, the anode in the electrolytic system of described catalytic oxidation is Ti/PbO
2anode, negative electrode are Ti material negative electrode, current density is 20mAcm
-2; Described photochemical catalytic oxidation is with TiO
2for catalyzer, H
2o
2for oxygenant, carry out under UV-irradiation, wherein TiO
2consumption can reduce to 10% of existing known consumption.
Comparative example 1
Traditional Powdered Activated Carbon treatment unit, comprises anoxic pond, Aerobic Pond, flocculation tank and settling pond, and the addition of active carbon filler is 9g/L.
Comparative example 2
Traditional Powdered Activated Carbon process-WAO device, comprises anoxic pond, Aerobic Pond, flocculation tank and settling pond, and WAO system, and the addition of active carbon filler is 8g/L.
Comparative example 3
Photocatalytic oxidation device, traditional Powdered Activated Carbon process-WAO device, comprises anoxic pond, Aerobic Pond, flocculation tank and settling pond, and WAO system, and the addition of active carbon filler is 8g/L.
Use the device of comparative example 1-3 and embodiment 1-6 to carry out the process of a kind of coking chemical waste water (its water quality is in table 1) respectively, the results are shown in Table 2 for it.
The water quality of table 1 coking chemical waste water
| COD Always(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
Use the device of comparative example 1-3 and embodiment 1-6 to carry out the process of a kind of municipal effluent (its water quality is listed in table 3) respectively, the results are shown in Table 4 for it.
The water quality of table 3 municipal effluent
| COD Always(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 only used to technical characteristic of the present utility model is described, is not used to limit the claimed scope of the utility model.With the technical scheme same principle of the present application content part, still belong to the category that the utility model is claimed.
Claims (8)
1. the waste disposal plant of a Treatment of Wastewater in Coking, it comprises 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 settling pond, described device also comprises a pretreatment unit, described pretreatment unit is a photoelectrocatalysioxidization oxidization device, wherein, the mode of connection of four anoxic pond comprises:
(1) first anoxic pond and the parallel connection of the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond are linked in sequence;
(2) first anoxic pond and the parallel connection of the second anoxic pond, the 3rd anoxic pond and the parallel connection of the 4th anoxic pond; Or
(3) first anoxic pond and the second anoxic pond are linked in sequence, the 3rd anoxic pond and the parallel connection of the 4th anoxic pond;
Wherein, at least one anoxic pond at least in the anoxic pond of parallel connection adds active carbon filler, described at least one anoxic pond in the anoxic pond that is linked in sequence also add active carbon filler, total dosage of described active carbon filler is 0.5-3g/L.
2. the waste disposal plant of Treatment of Wastewater in Coking according to claim 1, is characterized in that, in four anoxic pond, all add active carbon filler.
3. the waste disposal plant of Treatment of Wastewater in Coking according to claim 1 and 2, it is characterized in that, when two anoxic pond of parallel connection all add active carbon filler, the active carbon filler dosage ratio of two anoxic pond in parallel is (1 ~ 9): (9 ~ 1).
4. the waste disposal plant of Treatment of Wastewater in Coking according to claim 1 and 2, it is characterized in that, when two anoxic pond be linked in sequence all add active carbon filler, the dosage ratio of the active carbon filler of two anoxic pond be linked in sequence is (1 ~ 9): (9 ~ 1).
5. the waste disposal plant of Treatment of Wastewater in Coking according to claim 1, is characterized in that, the dosing method of described active carbon filler comprise following (a), (b) or (c) any one:
(a) when the first anoxic pond and the second anoxic pond in parallel, when the 3rd anoxic pond and the 4th anoxic pond are linked in sequence:
(a.1) in the first anoxic pond, add active carbon filler, other three anoxic pond do not add;
(a.2) in the second anoxic pond, add active carbon filler, other three anoxic pond do not add;
(a.3) in the first anoxic pond and the second anoxic pond, all add active carbon filler, other two anoxic pond do not add;
(a.4) in the first anoxic pond, add active carbon filler, 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;
(a.5) in the second anoxic pond, add active carbon filler, 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;
(a.6) in the first and second anoxic pond, add active carbon filler, at least one anoxic pond in the 3rd anoxic pond or the 4th anoxic pond adds active carbon filler;
(b) when the 3rd anoxic pond and the 4th anoxic pond in parallel, when the first anoxic pond and the second anoxic pond are linked in sequence:
(b.1) in the 3rd anoxic pond, add active carbon filler, other three anoxic pond do not add;
(b.2) in the 4th anoxic pond, add active carbon filler, other three anoxic pond do not add;
(b.3) in the 3rd anoxic pond and the 4th anoxic pond, all add active carbon filler, other two anoxic pond do not add;
(b.4) in the 3rd anoxic pond, add active carbon filler, 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;
(b.5) in the 4th anoxic pond, add active carbon filler, 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;
(b.6) in the third and fourth anoxic pond, add active carbon filler, at least one anoxic pond in the first anoxic pond or the second anoxic pond adds active carbon filler;
(c) when the first anoxic pond and the second anoxic pond in parallel, the 3rd anoxic pond and the 4th anoxic pond in parallel time:
(c.1) in the first anoxic pond, add active carbon filler, other three anoxic pond do not add;
(c.2) in the second anoxic pond, add active carbon filler, other three anoxic pond do not add;
(c.3) in the 3rd anoxic pond, add active carbon filler, other three anoxic pond do not add;
(c.4) in the 4th anoxic pond, add active carbon filler, other three anoxic pond do not add;
(c.5) in the first anoxic pond and the second anoxic pond, all add active carbon filler, other two anoxic pond do not add;
(c.6) in the first anoxic pond, add active carbon filler, 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;
(c.7) in the second anoxic pond, add active carbon filler, 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;
(c.8) in the first and second anoxic pond, add active carbon filler, at least one anoxic pond in the 3rd anoxic pond or the 4th anoxic pond adds active carbon filler;
(c.9) in the 3rd anoxic pond and the 4th anoxic pond, all add active carbon filler, other two anoxic pond do not add;
(c.10) in the 3rd anoxic pond, add active carbon filler, 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;
(c.11) in the 4th anoxic pond, add active carbon filler, 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;
(c.12) in the third and fourth anoxic pond, add active carbon filler, at least one anoxic pond in the first anoxic pond or the second anoxic pond adds active carbon filler.
6. the waste disposal plant of Treatment of Wastewater in Coking according to claim 1 and 2, is characterized in that, the volume ratio of described first Aerobic Pond and the first anoxic pond is 2:1, and the volume ratio of described first Aerobic Pond and the second anoxic pond is 2:1,
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.
7. the waste disposal plant of Treatment of Wastewater in Coking according to claim 1 and 2, is characterized in that, described sewage divides four stocks not enter the first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond.
8. the waste disposal plant of Treatment of Wastewater in Coking according to claim 1 and 2, is characterized in that,
Whipping appts is provided with in described first anoxic pond, the second anoxic pond, the 3rd anoxic pond and the 4th anoxic pond,
Aerating apparatus is provided with in described first Aerobic Pond and the second Aerobic Pond,
The residue biological carbon mud waste disposal of described settling pond, or, residue biological carbon mud reuse after concentrated of described settling pond.
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| CN201520061902.6U CN204588918U (en) | 2015-01-29 | 2015-01-29 | A kind of waste disposal plant of Treatment of Wastewater in Coking |
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|---|---|---|---|
| CN201520061902.6U CN204588918U (en) | 2015-01-29 | 2015-01-29 | A kind of waste disposal plant of Treatment of Wastewater in Coking |
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