CN203229438U - Zero-emission treatment system for paper-making wastewater - Google Patents
Zero-emission treatment system for paper-making wastewater Download PDFInfo
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- CN203229438U CN203229438U CN 201320111143 CN201320111143U CN203229438U CN 203229438 U CN203229438 U CN 203229438U CN 201320111143 CN201320111143 CN 201320111143 CN 201320111143 U CN201320111143 U CN 201320111143U CN 203229438 U CN203229438 U CN 203229438U
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Abstract
The utility model provides a zero-emission treatment system for of paper-making wastewater, and the system is good in wastewater treatment effect and capable of realizing zero emission by completely recycling the wastewater for production. The zero-emission treatment system comprises a water collecting tank, a filter roller screening machine, a waste slurry collecting tank, a stirring reaction tower, a primary settling tower, a secondary settling tower and a water return tank, wherein the outlet of the water collecting tank is connected with the water inlet of the filter roller screening machine by a water pump; the water outlet of the filter roller screening machine is connected with the water inlet of the stirring reaction tower; the waste slurry outlet of the filter roller screening machine is connected with the waste slurry inlet of the waste slurry collecting tank; the water outlet of the stirring reaction tower is connected with the water inlet of the primary settling tower; the water outlet of the primary settling tower is connected with the water inlet of the secondary settling tower; the water outlet of the secondary settling tower is connected with the water return tank by a water tube; a biological contact oxidizing tank is further arranged between the primary settling tower and the secondary settling tower; active sludge filler is arranged on the upper part of a gas tube in the biological contact oxidizing tank; an active carbon fiber wire filter layer is further arranged above the active sludge filler in the biological contact oxidizing tank.
Description
Technical field
The utility model relates to a kind of Waste Water Treatment, especially relates to a kind of paper making wastewater zero discharge treatment system.
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 entrance 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 entrance of stock tank, the mud discharging mouth of described settling tank connects the entrance of mud pond for recovering, the water outlet of described settling tank connects back pool, during processing, the bulk suspension of waste water or floating 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 for the waste water that flows out in the stock tank 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 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 wastewater zero discharge treatment system that saves production cost.
For achieving the above object, the utility model is achieved through the following technical solutions: a kind of paper making wastewater zero discharge treatment system, comprise water collecting basin, filter the roller screen machine, useless slurry collecting tank, the stirring reaction tower, the one-level settling tower, two-stage precipitation tower 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 tower, the water outlet of described one-level settling tower connects the water-in of two-stage precipitation tower, the water outlet of described two-stage precipitation tower connects back pool by water pipe, water pipe inside between described two-stage precipitation tower 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 tower and the two-stage precipitation tower, 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, the top, air outlet that is positioned at tracheae in the described biological contact oxidation pond is provided with the active sludge filler, and the top that is positioned at the active sludge filler in the described biological contact oxidation pond also is provided with activated carbon fiber silk filtering layer.
Further improvedly be: described one-level settling tower comprises tower body, be located at 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, be provided with in the described tower body and allow the rapid precipitation device of solid particulate rapid precipitation, 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 tower lid and rapid precipitation device successively and is linked to each other with dashpot in the tower body, the described water outlet that advances the water-in connection stirring reaction tower of waste pipe.
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 tower is provided with sewage draining exit, and described sewage draining exit is provided with wash water valve.
Further improvedly be: be provided with high-density fiber silk filtering layer in the described back pool.
By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: utilize the backwater water quality after this paper making wastewater zero discharge treatment system 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 tower and the two-stage precipitation tower, 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 the 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 top that is positioned at the active sludge filler in the described biological contact oxidation pond also is provided with activated carbon fiber silk filtering layer, activated carbon fiber silk filtering layer can carry out treatment and purification to water, remove look, taste removal, organic matter removal, dam suspended substance and biological floe in the water further improve effluent characteristics.
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 one-level settling tower.
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 wastewater zero discharge treatment system, comprise water collecting basin 1, filter roller screen machine 2, useless slurry collecting tank 3, stirring reaction tower 4, one-level settling tower 5, two-stage precipitation tower 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 tower 5, the water outlet of described one-level settling tower 5 connects the water-in of two-stage precipitation tower 6, the bottom of described one-level settling tower 5 is provided with sewage draining exit, described sewage draining exit is provided with wash water valve 56, the water outlet of described two-stage precipitation tower 6 connects back pool 7 by water pipe 9, and water pipe 9 inside between described two-stage precipitation tower 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 tower 5 and the two-stage precipitation tower 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 the 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.The top that is positioned at active sludge filler 103 in the described biological contact oxidation pond 10 also is provided with activated carbon fiber silk filtering layer 104.Activated carbon fiber silk filtering layer can carry out treatment and purification to water, remove look, taste removal, organic matter removal, and the suspended substance in the water that dams and biological floe improve effluent characteristics.
With reference to figure 2, described one-level settling tower comprises tower body 51, be located at the tower lid 52 on the tower body 51, advance waste pipe 53, described tower body 51 tops are provided with water outlet 511, described tower body 51 bottoms are provided with dirt collecting bucket 54, described dirt collecting bucket 54 bottoms are provided with mud discharging mouth, be provided with in the described tower body 51 and allow the rapid precipitation device 55 of solid particulate rapid precipitation, be positioned at rapid precipitation device 55 bottoms in the described tower body 51 and be provided with dashpot 57, the described water side of advancing waste pipe 53 is passed tower lid 52 and rapid precipitation device 55 successively and is linked to each other with dashpot 57 in the tower body 51, the described water-in that advances waste pipe 53 connects the water outlet of stirring reaction tower 4, the middle part that described rapid precipitation device 55 comprises the outside cylinder cylindrical shell 551 that is arranged on tower body 51 inboards and is located at outside cylinder cylindrical shell 551 inboards is provided with for advancing the inner cylindrical tube body 552 that waste pipe inserts perforation, between described outside cylinder cylindrical shell 552 and the inner cylinder body 551 radially tilting being evenly equipped with cushion precipitation inclined plate 553.Waste water through stirring reaction tower 4 handle the back from advance waste pipe enter in the precipitation tower body by dashpot buffering back to around spread, 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, the water outlet from the sewage that flows through of buffering settler from tower body top flows into pond for recovering.
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.
Be provided with high-density fiber silk filtering layer (not shown) in the described back pool 7, the space of high-density fiber silk layer is many, specific surface area is big, have the effect that machinery dams, can be further to water carry out purifying treatment, suspended substance and biological floe in the water that dams, guarantee effluent characteristics.
Utilize the backwater water quality after this paper making wastewater zero discharge treatment system 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 tower and the two-stage precipitation tower, 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 the 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 top that is positioned at the active sludge filler in the described biological contact oxidation pond also is provided with activated carbon fiber silk filtering layer, activated carbon fiber silk filtering layer can carry out treatment and purification to water, remove look, taste removal, organic matter removal, dam suspended substance and biological floe in the water further improve effluent characteristics.
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 (6)
1. paper making wastewater zero discharge treatment system, 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 tower, two-stage precipitation tower 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 tower, the water outlet of described one-level settling tower connects the water-in of two-stage precipitation tower, the water outlet of described two-stage precipitation tower connects back pool by water pipe, water pipe inside between described two-stage precipitation tower 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 tower and the two-stage precipitation tower, 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, the top, air outlet that is positioned at tracheae in the described biological contact oxidation pond is provided with the active sludge filler, and the top that is positioned at the active sludge filler in the described biological contact oxidation pond also is provided with activated carbon fiber silk filtering layer.
2. paper making wastewater zero discharge treatment system according to claim 1, it is characterized in that: described one-level settling tower 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, be provided with in the described tower body and allow the rapid precipitation device of solid particulate rapid precipitation, 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 tower lid and rapid precipitation device successively and is linked to each other with dashpot in the tower body, the described water outlet that advances the water-in connection stirring reaction tower of waste pipe.
3. paper making wastewater zero discharge treatment system 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 wastewater zero discharge treatment system 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 wastewater zero discharge treatment system according to claim 1, it is characterized in that: the bottom of described one-level settling tower is provided with wash water valve.
6. paper making wastewater zero discharge treatment system according to claim 1 is characterized in that: be provided with high-density fiber silk filtering layer in the described back pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320111143 CN203229438U (en) | 2013-03-12 | 2013-03-12 | Zero-emission treatment system for paper-making wastewater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320111143 CN203229438U (en) | 2013-03-12 | 2013-03-12 | Zero-emission treatment system for paper-making wastewater |
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| Publication Number | Publication Date |
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| CN203229438U true CN203229438U (en) | 2013-10-09 |
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| CN 201320111143 Expired - Fee Related CN203229438U (en) | 2013-03-12 | 2013-03-12 | Zero-emission treatment system for paper-making wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277676A (en) * | 2018-01-25 | 2018-07-13 | 吴君国 | Waste paper pulp filters all-in-one machine and its application method |
-
2013
- 2013-03-12 CN CN 201320111143 patent/CN203229438U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277676A (en) * | 2018-01-25 | 2018-07-13 | 吴君国 | Waste paper pulp filters all-in-one machine and its application method |
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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: 20131009 Termination date: 20150312 |
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| EXPY | Termination of patent right or utility model |