CN201999831U - Biochemical treatment device for salt-containing organic wastewater - Google Patents
Biochemical treatment device for salt-containing organic wastewater Download PDFInfo
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- CN201999831U CN201999831U CN2011200677095U CN201120067709U CN201999831U CN 201999831 U CN201999831 U CN 201999831U CN 2011200677095 U CN2011200677095 U CN 2011200677095U CN 201120067709 U CN201120067709 U CN 201120067709U CN 201999831 U CN201999831 U CN 201999831U
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Abstract
The utility model discloses a biochemical treatment device for salt-containing organic wastewater, which comprises a circulatory mixotrophic tank, a hydrolysis tank, a contact oxidation tank, a secondary sedimentation tank, a sludge concentration tank, a sludge dewatering machine and a salt-tolerant decontamination bacterium spreading cultivation device, wherein the circulatory mixotrophic tank, the hydrolysis tank, the contact oxidation tank, the secondary sedimentation tank, the sludge concentration tank and the sludge dewatering machine are connected in sequence; and the salt-tolerant decontamination bacterium spreading cultivation device is respectively connected with the circulatory mixotrophic tank, the hydrolysis tank and the contact oxidation tank. Most organics of the salt-containing wastewater are degraded in the circulatory mixotrophic tank through salt-resistance microorganisms; then the salt-containing wastewater enters the hydrolysis tank so as to hydrolyze and acidize benzenoid macromolecular organics and heterocyclic macromolecular organics which are hard to degrade in the wastewater to micro-molecular organics easy to biodegrade; effluent of the hydrolysis tank enters the contact oxidation tank so as to degrade the most remaining organics in the wastewater; and effluent of the sedimentation tank is discharged after reaching the standard. The biochemical treatment device has the advantages that the process flow is simple, a high salt content can be tolerated, the organic treatment efficiency is high, fresh water dilution is not needed, the operating cost is low, and the popularization and the application are easy.
Description
Technical field
The utility model belongs to field of environment protection, relates to a kind of salt-containing organic wastewater biochemical treatment apparatus.
Background technology
Can discharging salinity very high organic waste water in some Industrial products production processes, salinity even surpass 20%.The sub-thread high-salt wastewater with produce other waste water and mix after, its salt concentration also often surpasses 3%, common biochemical treatment is difficult to normal processing, therefore, a lot of enterprises have to utilize some clear water big yields to be diluted to saltiness to handle after below 0.8% again, not only cause the waste of water resources, also increased treatment facility scale and total amount of pollutants discharged, the high salt organic waste water of this class has become the difficult point of water treatment field.
High-salt wastewater refers to the waste water of total salinity (in NaC1 content) at least 1%.The a large amount of inorganic salt that contain in this waste water have the obvious suppression effect to biological growth and metabolism, belong to one of unmanageable trade effluent.Can discharge high-salt wastewater in the Industrial processes such as printing and dyeing, papermaking, chemical industry, pharmacy and the right gas of oil, not only contain a large amount of inorganic salt in this type of waste water, and contain a large amount of difficult degradation hazardous and noxious substances, its in line ecotope of putting around having influenced.Because supersalinity has changed the osmotic pressure of microorganism cells, has pressed down microbial growth, will cause cell rupture when serious, so saltiness brings certain degree of difficulty also for the biological treatment of waste water.
At present at the processing successful story of high-salt wastewater seldom, the general employing tamed common sludge, but the maximum saltiness of handling waste water is no more than 3%.Most enterprises adopt the clear water Macrodilution to reduce the waste water saltiness.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of salt-containing organic wastewater biochemical treatment apparatus is provided.
The salt-containing organic wastewater biochemical treatment apparatus comprises that circulation hold concurrently to support pond, hydrolytic tank, contact-oxidation pool, second pond, sludge thickener, sludge dewatering equipment, the salt tolerant decontamination bacterium device that spreads cultivation, circulation hold concurrently to be supported pond, hydrolytic tank, contact-oxidation pool, second pond, sludge thickener, sludge dewatering equipment and is connected in turn, and the salt tolerant decontamination bacterium device that spreads cultivation is held concurrently with circulation respectively and supported pond, hydrolytic tank, contact-oxidation pool and be connected.
Described circulation is held concurrently, and foster pond comprises cylindrical shell, intake water distributor, salt tolerant bacterium packing layer, distribution device, effluent weir, reflux pump, phegma water distributor, water outlet, be provided with into water water distributor, phegma water distributor, distribution device, salt tolerant bacterium packing layer, effluent weir in the cylindrical shell from top to bottom successively, the import of phegma water distributor links to each other with effluent weir through reflux pump, the effluent weir place is provided with water outlet, and the used filler of described salt tolerant bacterium packing layer is the hollow out laminal filler.
The cross section of described cylindrical shell is cylindrical or square, and height is 2:1～3:1 with diameter or side ratio; Reflux type is external water pump circulation or built-in aerating apparatus " gas is carried " circulation, and flooding quantity is 1:1～1:3 with backflow water yield ratio.
It is the hollow out laminal filler that described salt tolerant bacterium packing layer and hydrolytic tank are adorned used filler, and bed stuffing height accounts for 60～80% of total height; Described hollow out laminal filler is the hanging filler of the chip carrier made of plastics and fiber, and single filler diameter is 250～350mm, and a pitch of fins is 150～200mm, and it is 300～400mm that filler hangs spacing.
Described circulation oxygen compatibility pool, hydrolytic tank and contact-oxidation pool are provided with aerator, and aerator is perforated pipe, single hole menbrane aerator, can promote micro-hole aerator or swapping type does not have the bone micropore aeration pipe; Gas-water ratio is 2:1～40:1.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model adopts the double pond of supporting of circulation to have aerobic, hold concurrently oxygen, the corresponding bacterial classification of anaerobism and effect, and very high adaptability and treatment effect are arranged, and be used salt tolerant decontamination bacterium, be a kind of high loading biochemical processing process;
2, the utility model adopts special hollow out laminal filler, the relative current planar cross-sectional of this type of filler is little, little to flow resistance, be suitable for adhering to of salt-durable microbe, and can control the adhesion amount of flow resistance and microorganism by different layout densities is set.
3, the utility model has the advantages that technical process is simple, can tolerate higher salinity, organism processing efficiency height does not need the fresh water dilution, and working cost is low, is easy to apply.
Description of drawings
Fig. 1 is a salt-containing organic wastewater biochemical treatment apparatus structural representation;
Fig. 2 is the double pool structure synoptic diagram of supporting of circulation of the present utility model;
Among the figure: cylindrical shell 1, water inlet water distributor 2, salt tolerant bacterium packing layer 3, distribution device 4, effluent weir 5, reflux pump 6, phegma water distributor 7, water outlet 8.
Embodiment
As shown in drawings, the salt-containing organic wastewater biochemical treatment apparatus comprises that circulation hold concurrently to support pond, hydrolytic tank, contact-oxidation pool, second pond, sludge thickener, sludge dewatering equipment, the salt tolerant decontamination bacterium device that spreads cultivation, circulation hold concurrently to be supported pond, hydrolytic tank, contact-oxidation pool, second pond, sludge thickener, sludge dewatering equipment and is connected in turn, and the salt tolerant decontamination bacterium device that spreads cultivation is held concurrently with circulation respectively and supported pond, hydrolytic tank, contact-oxidation pool and be connected.
Described circulation is held concurrently, and foster pond comprises cylindrical shell 1, intake water distributor 2, salt tolerant bacterium packing layer 3, distribution device 4, effluent weir 5, reflux pump 6, phegma water distributor 7, water outlet 8, be provided with into water water distributor 2, phegma water distributor 7, distribution device 4, salt tolerant bacterium packing layer 3, effluent weir 5 in the cylindrical shell 1 from top to bottom successively, 7 imports of phegma water distributor link to each other with effluent weir 5 through reflux pump 6, effluent weir 5 places are provided with water outlet 8, and described salt tolerant bacterium packing layer 3 used fillers are the hollow out laminal filler.
The cross section of described cylindrical shell 1 is cylindrical or square, and height is 2:1～3:1 with diameter or side ratio; Reflux type is external water pump circulation or built-in aerating apparatus " gas is carried " circulation, and flooding quantity is 1:1～1:3 with backflow water yield ratio.
It is the hollow out laminal filler that described salt tolerant bacterium packing layer 3 and hydrolytic tank are adorned used filler, and bed stuffing height accounts for 60～80% of total height; Described hollow out laminal filler is the hanging filler of the chip carrier made of plastics and fiber, and single filler diameter is 250～350mm, and a pitch of fins is 150～200mm, and it is 300～400mm that filler hangs spacing.
Described circulation oxygen compatibility pool, hydrolytic tank and contact-oxidation pool are provided with aerator, and aerator is perforated pipe, single hole menbrane aerator, can promote micro-hole aerator or swapping type does not have the bone micropore aeration pipe; Gas-water ratio is 2:1～40:1.
The salt-containing organic wastewater biochemical processing method is: the organic waste water that saltiness is 2% ~ 8%, COD is 1200 ~ 6700mg/L at first enters circulation and holds concurrently and support the pond, sewage is when oxygenation keeps holding concurrently the state of supporting, mode by low-lift pump or " gas is carried " is circulated to inhalant region with treat effluent, utilize the water after handling that water inlet is diluted to reduce the impact of venomous injurant confrontation microorganism on the one hand, the impact that utilizes circulating water flow to produce on the other hand makes the mud of inhalant region form suspended state and then strengthens the muddy water mixed effect; In groove, form oxygen consumption district, aerobic area and anaerobic zone, utilize the salt tolerant decontamination bacterium that is fixed on the hollow out laminal filler to handle organism simultaneously, waste water residence time of circulation oxygen compatibility pool at 24h ~ 48h, the pH value is 6.0～9.0, dissolved oxygen is 0.1～0.4mg/L; Circulation oxygen compatibility pool water outlet gravity flow enters hydrolytic tank, further utilize the organism in the salt tolerant bacterium degraded high-salt wastewater on the hollowed out spherical filler, the effect of hydrolytic tank mainly is the organism that the phenyl ring class of difficult degradation in the waste water, heterocyclic larger molecular organics acidication is become small molecules, readily biodegradable, improves the B/C of waste water; The residence time of hydrolytic tank is 24 ~ 36h, and the pH value is 6.0 ~ 8.5, and dissolved oxygen is 0.1 ~ 0.2mg/L; Hydrolytic tank water outlet gravity flow enters contact-oxidation pool, and the main effect of contact-oxidation pool is remaining most of organism in the degrading waste water; The residence time of contact-oxidation pool is 26 ~ 48h, and pH is 6.0 ~ 8.0, and dissolved oxygen is 2 ~ 4mg/L; The water outlet of contact-oxidation pool enters second pond, and sedimentation time is 1.5～2 hours, and surface load is 0.8～1.2m
3/ m
2.h, the water outlet qualified discharge of settling tank; Salt tolerant decontamination bacterium is delivered to double pond, hydrolytic tank and the contact-oxidation pool of supporting of circulation off and on after the device that spreads cultivation spreads cultivation; Salt tolerant decontamination bacterium dosage is to handle 3 of the water yield ~ 6 ‰ weekly, or handles 1 of the water yield ~ 2 ‰ every day.Described salt tolerant decontamination bacterium is that photosynthetic bacterium is main salt tolerant, has a liking for the salt microorganism species; The saltiness of salt tolerant decontamination bacterium tolerance is 2～8%.Enter sludge thickener through the isolating mud of settling tank, utilize the sludge dewatering equipment dehydration again, last mud carries out harmlessness disposing or outward transport.
Application example:
1) utilization the utility model is handled high salt pharmaceutical wastewater, and the water yield is 600m
3/ d, influent quality is as follows: COD
Cr1200mg/L, BOD
5256mg/L, saltiness 8%, pH7.8, this waste water at first enters the circulation oxygen compatibility pool, circulation oxygen compatibility pool HRT 24h, dissolved oxygen 0.1mg/L, reflux ratio 2:1 adopts perforated pipe aerating regulation, and gas-water ratio is 2:1; Circulation oxygen compatibility pool water outlet gravity flow enters hydrolytic tank, hydrolytic tank HRT 24h, and bed stuffing height is 60% of a pond height in the dissolved oxygen 0.1mg/L, hydrolytic tank, gas-water ratio is 4:1; Hydrolytic tank water outlet gravity flow enters contact-oxidation pool, and contact-oxidation pool HRT is 26h, and interior extension combined stuffing is established and can be promoted the micropore aeration pipe aeration, and gas-water ratio is 15:1, and dissolved oxygen is at 2mg/L; Salt tolerant decontamination bacterium device 1 cover that spreads cultivation, 3m
3, the bacterial classification arbitrary way is to replenish once in per 2 days, magnitude of recruitment is 2.4m
3Salt-containing organic wastewater after the salt-containing organic wastewater biochemical treatment apparatus is handled, water outlet COD
Cr420mg/L, BOD
528mg/L reaches (CJ343-2010) " sewage enters cities and towns water drain water quality standard " (wherein COD is no more than 500mg/L).Enter sludge thickener through the isolating mud of settling tank, utilize the sludge dewatering equipment dehydration again, last mud carries out harmlessness disposing or outward transport.
2) use this device to handle high salt dyestuff wastewater from chemical industry, the water yield is 460m
3/ d, influent quality is as follows: COD
Cr3875mg/L, BOD
5891mg/L, saltiness 3.5%mg/L, pH1.5, this waste water enter the circulation oxygen compatibility pool after at first being adjusted to 7 through pH, circulation oxygen compatibility pool HRT36h, and dissolved oxygen 0.2mg/L, reflux ratio 1:1 adopts perforated pipe aerating regulation, and gas-water ratio is 3:1; Circulation oxygen compatibility pool water outlet gravity flow enters hydrolytic tank, hydrolytic tank HRT 36h, and bed stuffing height is 2/3 of a pond height in the dissolved oxygen 0.2mg/L, hydrolytic tank, gas-water ratio is 6:1; Hydrolytic tank water outlet gravity flow enters contact-oxidation pool, and contact-oxidation pool HRT is 32h, and interior extension combined stuffing is established and can be promoted the micropore aeration pipe aeration, and gas-water ratio is 20:1, and dissolved oxygen is at 3mg/L; Salt tolerant decontamination bacterium device 1 cover that spreads cultivation, 3m
3, the bacterial classification arbitrary way is to replenish once in per 2 days, magnitude of recruitment is 1.3m
3Salt-containing organic wastewater after the salt-containing organic wastewater biochemical treatment apparatus is handled, water outlet COD
Cr345mg/L, BOD
522mg/L reaches (CJ343-2010) " sewage enters cities and towns water drain water quality standard " (wherein COD is no more than 500mg/L).Enter sludge thickener through the isolating mud of settling tank, utilize the sludge dewatering equipment dehydration again, last mud carries out harmlessness disposing or outward transport.
3) utilization the utility model is handled high salt chemical engineering waste water, and the water yield is 800m
3/ d, influent quality is as follows: COD
Cr6700mg/L, BOD
51437mg/L, saltiness 2%, pH1.5, this waste water at first are adjusted to 7 through pH and enter the circulation oxygen compatibility pool, circulation oxygen compatibility pool HRT48h, dissolved oxygen 0.4mg/L, reflux ratio 2:1 adopts perforated pipe aerating regulation, and gas-water ratio is 3:1; Circulation oxygen compatibility pool water outlet gravity flow enters hydrolytic tank, hydrolytic tank HRT 36h, and bed stuffing height is 70% of a pond height in the dissolved oxygen 0.3mg/L, hydrolytic tank, gas-water ratio is 7:1; Hydrolytic tank water outlet gravity flow enters contact-oxidation pool, and contact-oxidation pool HRT is 48h, and interior extension combined stuffing is established and can be promoted the micropore aeration pipe aeration, and gas-water ratio is 40:1, and dissolved oxygen is at 4mg/L; Salt tolerant decontamination bacterium device 1 cover that spreads cultivation, 3m
3, the bacterial classification arbitrary way is to replenish once in per 2 days, magnitude of recruitment is 1.6m
3Salt-containing organic wastewater after the salt-containing organic wastewater biochemical treatment apparatus is handled, water outlet COD
Cr235mg/L, BOD
525mg/L reaches (CJ343-2010) " sewage enters cities and towns water drain water quality standard " (wherein COD is no more than 500mg/L).Enter sludge thickener through the isolating mud of settling tank, utilize the sludge dewatering equipment dehydration again, last mud carries out harmlessness disposing or outward transport.
Claims (5)
1. salt-containing organic wastewater biochemical treatment apparatus, it is characterized in that comprising that circulation hold concurrently to support pond, hydrolytic tank, contact-oxidation pool, second pond, sludge thickener, sludge dewatering equipment, the salt tolerant decontamination bacterium device that spreads cultivation, circulation hold concurrently to be supported pond, hydrolytic tank, contact-oxidation pool, second pond, sludge thickener, sludge dewatering equipment and is connected in turn, and the salt tolerant decontamination bacterium device that spreads cultivation is held concurrently with circulation respectively and supported pond, hydrolytic tank, contact-oxidation pool and be connected.
2. a kind of salt-containing organic wastewater biochemical treatment apparatus according to claim 1, it is characterized in that the double pond of supporting of described circulation comprises cylindrical shell (1), water inlet water distributor (2), salt tolerant bacterium packing layer (3), distribution device (4), effluent weir (5), reflux pump (6), phegma water distributor (7), water outlet (8), be provided with into water water distributor (2) in the cylindrical shell (1) from top to bottom successively, phegma water distributor (7), distribution device (4), salt tolerant bacterium packing layer (3), effluent weir (5), phegma water distributor (7) import links to each other with effluent weir (5) through reflux pump (6), effluent weir (5) locates to be provided with water outlet (8), and the used filler of described salt tolerant bacterium packing layer (3) is the hollow out laminal filler.
3. a kind of salt-containing organic wastewater biochemical treatment apparatus according to claim 2, the cross section that it is characterized in that described cylindrical shell (1) is cylindrical or square, height is 2:1～3:1 with diameter or side ratio; Reflux type is external water pump circulation or built-in aerating apparatus " gas is carried " circulation, and flooding quantity is 1:1～1:3 with backflow water yield ratio.
4. a kind of salt-containing organic wastewater biochemical treatment apparatus according to claim 1 is characterized in that it is the hollow out laminal filler that described salt tolerant bacterium packing layer (3) and hydrolytic tank are adorned used filler, and bed stuffing height accounts for 60～80% of total height; Described hollow out laminal filler is the hanging filler of the chip carrier made of plastics and fiber, and single filler diameter is 250～350mm, and a pitch of fins is 150～200mm, and it is 300～400mm that filler hangs spacing.
5. a kind of salt-containing organic wastewater biochemical treatment apparatus according to claim 1, it is characterized in that described circulation oxygen compatibility pool, hydrolytic tank and contact-oxidation pool are provided with aerator, aerator is perforated pipe, single hole menbrane aerator, can promote micro-hole aerator or swapping type does not have the bone micropore aeration pipe; Gas-water ratio is 2:1～40:1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200677095U CN201999831U (en) | 2011-03-15 | 2011-03-15 | Biochemical treatment device for salt-containing organic wastewater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200677095U CN201999831U (en) | 2011-03-15 | 2011-03-15 | Biochemical treatment device for salt-containing organic wastewater |
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| Publication Number | Publication Date |
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| CN201999831U true CN201999831U (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200677095U Expired - Lifetime CN201999831U (en) | 2011-03-15 | 2011-03-15 | Biochemical treatment device for salt-containing organic wastewater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173538A (en) * | 2011-03-15 | 2011-09-07 | 浙江环科环境研究院有限公司 | Device and process for biochemically treating saline organic wastewater |
| CN108178305A (en) * | 2018-02-11 | 2018-06-19 | 浙江省环境保护科学设计研究院 | A kind of technique and device of biological multielementization processing wastewater of chemical industry with high concentration |
-
2011
- 2011-03-15 CN CN2011200677095U patent/CN201999831U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173538A (en) * | 2011-03-15 | 2011-09-07 | 浙江环科环境研究院有限公司 | Device and process for biochemically treating saline organic wastewater |
| CN108178305A (en) * | 2018-02-11 | 2018-06-19 | 浙江省环境保护科学设计研究院 | A kind of technique and device of biological multielementization processing wastewater of chemical industry with high concentration |
| CN108178305B (en) * | 2018-02-11 | 2023-10-27 | 浙江省环境保护科学设计研究院 | Process and device for biological diversification treatment of high-concentration chemical wastewater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111005 |