CN203079808U - Sewage treatment system capable of realizing sewage zero emission during paper making - Google Patents
Sewage treatment system capable of realizing sewage zero emission during paper making Download PDFInfo
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- CN203079808U CN203079808U CN 201320111048 CN201320111048U CN203079808U CN 203079808 U CN203079808 U CN 203079808U CN 201320111048 CN201320111048 CN 201320111048 CN 201320111048 U CN201320111048 U CN 201320111048U CN 203079808 U CN203079808 U CN 203079808U
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Abstract
The utility model relates to a waste water treatment system and provides a sewage treatment system capable of realizing sewage zero emission during paper making. By adopting the sewage treatment system provided by the utility model, the waste water treatment effect is good, all the waste water can be recovered for production, zero emission is realized, pollution is reduced, and production cost is saved. The sewage treatment system comprises a water collecting pool, a filtering rolling screening machine, a waste pulp collecting pool, a stirring reaction tower, a primary settling pool, a secondary settling filtering tower and a water return pool, wherein an outlet of the water collecting pool is connected with a water inlet of the filtering rolling screening machine through a water pump; a water outlet of the filtering rolling screening machine is connected with a water inlet of the stirring reaction tower; a waste pulp outlet of the filtering rolling screening machine is connected with a waste pulp inlet of the waste pulp collecting pool; a water outlet of the stirring reaction tower is connected with a water inlet of the primary settling pool; a water outlet of the primary settling pool is connected with a water inlet of the secondary settling filtering tower; a water outlet of the secondary settling filtering tower is connected with the water return pool through a water pipe; a foam-inhibiting and defoaming agent is arranged in the water pipe between the secondary settling filtering tower and the water return pool; and a biological contact oxidation pool is arranged between the primary settling pool and the secondary settling filtering tower.
Description
Technical field
The utility model relates to a kind of Waste Water Treatment, especially relates to a kind of paper-making zero discharge Sewage treatment systems.
Background technology
The sewage quantity of the annual discharging of China is very big, and discharging is few again after treatment, and environment is done a lot of damage, and each big water system of China all produces pollution in various degree, water surrounding severe exacerbation.For a long time, paper waste is one of fast-developing problem of restriction paper industry always, Pollutant levels height in the paper waste, composition is complicated, contains a large amount of paper making raw materials and pharmaceutical chemicals, and oxygen consumption is serious, cause the paper waste difficult treatment, become one of industry of serious environment pollution.If paper waste is directly discharged the meeting serious environment pollution, so must be through purifying treatment.
Existing papermaking wastewater treatment unit comprises the spacing grid maker, the wastewater collection pond, tiltedly net drags for stock tank, settling tank, mud pond for recovering and back pool, the outlet of spacing grid maker connects the inlet in wastewater collection pond, the outlet in wastewater collection pond connects oblique net and drags for stock tank, tiltedly net drags for the outlet connection settling tank inlet of stock tank, the mud discharging mouth of described settling tank connects the inlet of mud pond for recovering, the water outlet of described settling tank connects back pool, during processing, the bulk suspension of waste water or buoyant dirt enter oblique net and drag for stock tank after the interception of spacing grid maker, tiltedly net drags for and is provided with the oblique net of 70 purposes in the stock tank in order to the fiber fines in the filtered water, impurity, dragging in the stock tank effusive waste water from oblique net enters settling tank and carries out precipitation process, waste water after settling tank is handled flows into the back pool reuse, and the mud in the settling tank then enters the muddy water pond for recovering by mud discharging mouth.This processing materialization treatment system, treatment step is simple, but the waste water quality after handling is bad, can only remove the SS and the COD of small portion in the waste water, this mode handle and reuse water, easily worsen smelly, and decolorizing effect is not obvious, effectively cause color substance in the degradation water, the organic removal rate in the water is low, and the waste water frothing after the processing is serious, effluent color dilution is dark, the discharging that usually exceeds standard of cyclically utilizing for a long time, the COD in the sewage impacts water pollution.
The utility model content
Therefore, at above-mentioned problem, the utility model provides a kind of good waste water treatment effect, can all be recovered in production, realizes external zero release, reduces and pollutes, the paper-making zero discharge Sewage treatment systems that saves production cost.
For achieving the above object, the utility model is achieved through the following technical solutions: a kind of paper-making zero discharge Sewage treatment systems, comprise water collecting basin, filter the roller screen machine, useless slurry collecting tank, the stirring reaction tower, the one-level settling tank, two-stage precipitation filtration tank and back pool, the outlet of described water collecting basin connects the roller screen machine that filters by water pump, the water outlet of described filtration roller screen machine connects the water-in of stirring reaction tower, the useless slurry outlet of described filtration roller screen machine connects the useless slurry inlet of useless slurry collecting tank, the water outlet of described stirring reaction tower connects the one-level settling tank, the water outlet of described one-level settling tank connects the water-in of two-stage precipitation filtration tank, the water outlet of described two-stage precipitation filtration tank connects back pool by water pipe, water pipe inside between described two-stage precipitation filtration tank and the back pool is provided with and presses down the bubble defoamer, also be provided with biological contact oxidation pond between described one-level settling tank and the two-stage precipitation filtration tank, the bottom is equipped with tracheae in the described biological contact oxidation pond, be evenly equipped with production well on the described tracheae, one end of described tracheae stretches out outside the pond and links to each other with blower fan, and the top, air outlet that is positioned at tracheae in the described biological contact oxidation pond is provided with the active sludge filler.
Further improvedly be: described two-stage precipitation filtration tank comprises tower body, be located at the tower lid on the tower body, advance waste pipe, described tower body top is provided with water outlet, described tower body bottom is provided with dirt collecting bucket, described dirt collecting bucket bottom is provided with mud discharging mouth, in the described tower body by allowing the rapid precipitation device and the filler filtering layer of solid particulate rapid precipitation from last being provided with successively down, be positioned at rapid precipitation device bottom in the described tower body and be provided with dashpot, the described water side of advancing waste pipe is passed the tower lid successively, filter packing layer and rapid precipitation device link to each other with the intravital dashpot of tower, and the described water-in that advances waste pipe connects the water outlet of biological contact oxidation pond.
Further improvedly be: the middle part that described rapid precipitation device comprises the outside cylinder cylindrical shell that is arranged on sedimentation and filtration tower body inboard and is located at outside cylinder cylindrical shell inboard is provided with for advancing the inner cylindrical tube body that waste pipe inserts perforation, radially tiltingly between described outside cylinder cylindrical shell and the inner cylinder body is evenly equipped with a plurality of buffering precipitation inclined plates.
Further improvedly be: described stirring reaction tower comprises and stirs tower and be located at the whipping appts that stirs in the tower that described whipping appts comprises stir shaft and be distributed in the agitating vane of stir shaft periphery that the bottom of described each agitating vane also is respectively equipped with cocking lever.
Further improvedly be: the bottom of described one-level settling tank is provided with sewage draining exit, and described sewage draining exit is provided with wash water valve.
By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: utilize the backwater water quality after this paper-making zero discharge Sewage treatment systems is handled good, but make paper waste recirculation utilization after treatment, fully recovering is in production, the external zero release of basic realization, not only can the sewage effluent contaminate environment but also can save the mass production cost, reduced the wasting of resources, can recycle paper waste effectively, pollution to environment drops to minimum, and this treatment unit can also extract useless slurry from sewage, and this useless slurry can be used for the egg holder that the production and transport egg is used, thereby realizes the benefit that the refuse reorganization utilizes.Also be provided with biological contact oxidation pond between described one-level settling tank and the two-stage precipitation filtration tank, the bottom is equipped with tracheae in the biological contact oxidation pond, be evenly equipped with production well on the described tracheae, one end of described tracheae stretches out outside the pond and links to each other with blower fan, the top, air outlet that is positioned at tracheae in the described biological contact oxidation pond is provided with the active sludge filler, blower fan can be by tracheae delivering gas in biological contact oxidation pond thus, waste water in the biological contact oxidation pond is constantly moved, active sludge in waste water and the pond is touched mutually, make the abundant contact reacts of active sludge and waste water, increase and to contact the absorption chance between active sludge and the sewage, effectively improve degradation capability, effectively cause color substance in the degradation water, remove suspended substance in the water, improve the clearance of organic matter of sewage, but make the COD qualified discharge in the waste water.
Description of drawings
Fig. 1 is the schematic flow sheet of the utility model embodiment.
Fig. 2 is the structural representation of the utility model embodiment two-stage precipitation filtration tank.
Fig. 3 is the structural representation of the utility model embodiment biological contact oxidation pond.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Embodiment:
With reference to figure 1 and Fig. 3, present embodiment discloses a kind of paper-making zero discharge Sewage treatment systems, comprise water collecting basin 1, filter roller screen machine 2, useless slurry collecting tank 3, stirring reaction tower 4, one-level settling tank 5, two-stage precipitation filtration tank 6 and back pool 7, the outlet of described water collecting basin 1 connects by water pump 11 filters roller screen machine 2 water-ins, the water outlet of described filtration roller screen machine 2 connects the water-in of stirring reaction tower 4, the useless slurry outlet of described filtration roller screen machine 2 connects the useless slurry inlet of useless slurry collecting tank 3, the water outlet of described stirring reaction tower 4 connects the water-in of one-level settling tank 5, the water outlet of described one-level settling tank 5 connects the water-in of two-stage precipitation filtration tank 6, the bottom of described one-level settling tank 5 is provided with sewage draining exit, described sewage draining exit is provided with wash water valve 52, the water outlet of described two-stage precipitation filtration tank 6 connects back pool 7 by water pipe 9, and water pipe 9 inside between described two-stage precipitation filtration tank 6 and the back pool 7 are provided with and press down bubble defoamer 8.Also be provided with biological contact oxidation pond 10 between described one-level settling tank 5 and the two-stage precipitation filtration tank 6, the bottom is equipped with tracheae 101 in the described biological contact oxidation pond 10, be evenly equipped with production well on the described tracheae 101, one end of described tracheae 101 stretches out outside the pond and links to each other with blower fan 102, the top, air outlet that is positioned at tracheae 101 in the described biological contact oxidation pond 10 is provided with active sludge filler 103, blower fan can be by tracheae delivering gas in biological contact oxidation pond, waste water in the biological contact oxidation pond is constantly moved, active sludge in waste water and the pond is touched mutually, make the abundant contact reacts of active sludge and waste water, increase and to contact the absorption chance between active sludge and the sewage, effectively improve degradation capability, effectively cause color substance in the degradation water, remove suspended substance in the water, improve the clearance of organic matter of sewage, but make the COD qualified discharge in the waste water.
With reference to figure 2, described two-stage precipitation filtration tank comprises tower body 61, be located at the tower lid 62 on the tower body 61, advance waste pipe 63, described tower body 61 tops are provided with water outlet 611, described tower body 61 bottoms are provided with dirt collecting bucket 64, described dirt collecting bucket 64 bottoms are provided with mud discharging mouth, in the described tower body 61 by allowing the rapid precipitation device 65 and the filler filtering layer 66 of solid particulate rapid precipitation from last being provided with successively down, be positioned at rapid precipitation device 65 bottoms in the described tower body 61 and be provided with dashpot 67, the described water side of advancing waste pipe 63 is passed tower lid 62 successively, dashpot 67 in filter packing layer 66 and rapid precipitation device 65 and the tower body 61 links to each other, the described water outlet that advances the water-in biological contact oxidation pond 10 of waste pipe 63, the middle part that described rapid precipitation device 65 comprises the outside cylinder cylindrical shell 651 that is arranged on tower body 61 inboards and is located at outside cylinder cylindrical shell 651 inboards is provided with for advancing the inner cylindrical tube body 652 that waste pipe inserts perforation, and radially tilting being evenly equipped with cushioned precipitation inclined plate 653 between described outside cylinder cylindrical shell 652 and the inner cylinder body 651.Waste water enters in the precipitation tower body after dashpot buffering back to diffusion all around from advancing waste pipe after biological contact oxidation pond 10 is handled, flow to cat head stably then, sewage is in uphill process, density greater than the suspended solid of water as making filler, fiber fines, inorganic particles such as mud yarn constantly sink and by the rapid precipitation device, accelerate precipitation, per two block buffering precipitation inclined plates of buffering settler are equivalent to a very little settling tank, the solids precipitation time is shortened dramatically, utilize perpendicular stream principle, reach the purpose of rapid precipitation, from the sewage that flows through of buffering settler after filtration packing layer further filter the back and flow into pond for recovering from the water outlet on tower body top.
Described stirring reaction tower 4 comprises the stirring tower and is located at the whipping appts that stirs in the tower, described whipping appts comprises stir shaft and is distributed in the agitating vane of stir shaft periphery, the bottom of described each agitating vane also is respectively equipped with cocking lever, cocking lever can be widened the stirring scope of whipping appts, make mixing effect better, more even.
Utilize the backwater water quality after this paper-making zero discharge Sewage treatment systems is handled good, but make paper waste recirculation utilization after treatment, fully recovering is in production, the external zero release of basic realization, not only can the sewage effluent contaminate environment but also can save the mass production cost, reduced the wasting of resources, can recycle paper waste effectively, pollution to environment drops to minimum, and this treatment unit can also extract useless slurry from sewage, should can be used for the egg holder that the production and transport egg is used by useless slurry, thereby realize the benefit that the refuse reorganization utilizes.Also be provided with biological contact oxidation pond between described one-level settling tank and the two-stage precipitation filtration tank, the bottom is equipped with tracheae in the biological contact oxidation pond, be evenly equipped with production well on the described tracheae, one end of described tracheae stretches out outside the pond and links to each other with blower fan, the top, air outlet that is positioned at tracheae in the described biological contact oxidation pond is provided with the active sludge filler, blower fan can be by tracheae delivering gas in biological contact oxidation pond thus, waste water in the biological contact oxidation pond is constantly moved, active sludge in waste water and the pond is touched mutually, make the abundant contact reacts of active sludge and waste water, increase and to contact the absorption chance between active sludge and the sewage, effectively improve degradation capability, effectively cause color substance in the degradation water, remove suspended substance in the water, improve the clearance of organic matter of sewage, but make the COD qualified discharge in the waste water.
The above record only for utilizing the embodiment of this origination techniques content, anyly is familiar with modification, the variation that this skill person uses this creation to do, and all belongs to the claim of this creation opinion, and is not limited to those disclosed embodiments.
Claims (5)
1. paper-making zero discharge Sewage treatment systems, it is characterized in that: comprise water collecting basin, filter the roller screen machine, useless slurry collecting tank, the stirring reaction tower, the one-level settling tank, two-stage precipitation filtration tank and back pool, the outlet of described water collecting basin connects the roller screen machine that filters by water pump, the water outlet of described filtration roller screen machine connects the water-in of stirring reaction tower, the useless slurry outlet of described filtration roller screen machine connects the useless slurry inlet of useless slurry collecting tank, the water outlet of described stirring reaction tower connects the one-level settling tank, the water outlet of described one-level settling tank connects the water-in of two-stage precipitation filtration tank, the water outlet of described two-stage precipitation filtration tank connects back pool by water pipe, water pipe inside between described two-stage precipitation filtration tank and the back pool is provided with and presses down the bubble defoamer, also be provided with biological contact oxidation pond between described one-level settling tank and the two-stage precipitation filtration tank, the bottom is equipped with tracheae in the described biological contact oxidation pond, be evenly equipped with production well on the described tracheae, one end of described tracheae stretches out outside the pond and links to each other with blower fan, and the top, air outlet that is positioned at tracheae in the described biological contact oxidation pond is provided with the active sludge filler.
2. paper-making zero discharge Sewage treatment systems according to claim 1, it is characterized in that: described two-stage precipitation filtration tank comprises tower body, be located at the tower lid on the tower body, advance waste pipe, described tower body top is provided with water outlet, described tower body bottom is provided with dirt collecting bucket, described dirt collecting bucket bottom is provided with mud discharging mouth, in the described tower body by allowing the rapid precipitation device and the filler filtering layer of solid particulate rapid precipitation from last being provided with successively down, be positioned at rapid precipitation device bottom in the described tower body and be provided with dashpot, the described water side of advancing waste pipe is passed the tower lid successively, filter packing layer and rapid precipitation device link to each other with the intravital dashpot of tower, and the described water-in that advances waste pipe connects the water outlet of biological contact oxidation pond.
3. paper-making zero discharge Sewage treatment systems according to claim 2, it is characterized in that: the middle part that described rapid precipitation device comprises the outside cylinder cylindrical shell that is arranged on sedimentation and filtration tower body inboard and is located at outside cylinder cylindrical shell inboard is provided with for advancing the inner cylindrical tube body that waste pipe inserts perforation, radially tiltingly between described outside cylinder cylindrical shell and the inner cylinder body is evenly equipped with a plurality of buffering precipitation inclined plates.
4. paper-making zero discharge Sewage treatment systems according to claim 1, it is characterized in that: described stirring reaction tower comprises the stirring tower and is located at the whipping appts that stirs in the tower, described whipping appts comprises stir shaft and is distributed in the agitating vane of stir shaft periphery that the bottom of described each agitating vane also is respectively equipped with cocking lever.
5. paper-making zero discharge Sewage treatment systems according to claim 1 is characterized in that: the bottom of described one-level settling tank is provided with wash water valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320111048 CN203079808U (en) | 2013-03-12 | 2013-03-12 | Sewage treatment system capable of realizing sewage zero emission during paper making |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320111048 CN203079808U (en) | 2013-03-12 | 2013-03-12 | Sewage treatment system capable of realizing sewage zero emission during paper making |
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| Publication Number | Publication Date |
|---|---|
| CN203079808U true CN203079808U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320111048 Expired - Fee Related CN203079808U (en) | 2013-03-12 | 2013-03-12 | Sewage treatment system capable of realizing sewage zero emission during paper making |
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| CN (1) | CN203079808U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862683A (en) * | 2016-04-22 | 2016-08-17 | 广东省水利水电科学研究院 | Multi-layer and multi-order pore plate used for reducing aeration and restraining bubbles and rapid construction method for multi-layer and multi-order pore plate |
-
2013
- 2013-03-12 CN CN 201320111048 patent/CN203079808U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862683A (en) * | 2016-04-22 | 2016-08-17 | 广东省水利水电科学研究院 | Multi-layer and multi-order pore plate used for reducing aeration and restraining bubbles and rapid construction method for multi-layer and multi-order pore plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20150312 |
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| EXPY | Termination of patent right or utility model |