CN107253806A - Pulp and paper industry comprehensive wastewater treatment system - Google Patents
Pulp and paper industry comprehensive wastewater treatment system Download PDFInfo
- Publication number
- CN107253806A CN107253806A CN201710670874.1A CN201710670874A CN107253806A CN 107253806 A CN107253806 A CN 107253806A CN 201710670874 A CN201710670874 A CN 201710670874A CN 107253806 A CN107253806 A CN 107253806A
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- sludge
- pond
- tank
- hydrolysis acidification
- acidification pool
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of pulp and paper industry comprehensive wastewater treatment system, including collecting-tank, grid sewage-removing machine, fibre recovery machine, preliminary sedimentation tank, hydrolysis acidification pool, bioselection pond, aeration tank, second pond, three heavy pond, farmland irrigating device, dosing filter, running vehicle type pump suction dredge, sludge concentration tank and sludge dewatering equipments.Invention increases automatic pollutant removal grid maker, it can remove large-sized floating object and suspension to protect the operation safety of subsequent treatment facility；Add running vehicle type pump suction dredge and force spoil disposal, it is to avoid sludge anaerobic, reduce Pollutants in Wastewater load；Invention increases hydrolysis acidification pool, it is possible to increase biomass, and a variety of hydrolysis bacterium can change molecular structure, and larger molecular organicses are converted into small organic molecule, improves the biodegradability of waste water, improves the clearance of pollutant；It invention increases bioselection pond, can effectively suppress the amount reproduction of der Pilz, overcome sludge bulking, improve the stability of biosystem operation.
Description
First, technical field：
The present invention relates to a kind of wastewater treatment equipment, more particularly to a kind of pulp and paper industry comprehensive wastewater treatment system, category
In the useless dirty processing technology field of paper-making industry.
2nd, background technology：
With the water-saving and environmental protection requirement and the project verification requirement of new environmental protection project of paper-making industry, with the increase of quantity of circulating water, enter
The sewage quantity of Sewage Disposal is being gradually reduced, but the concentration of Pollutants in Wastewater accordingly increases, and according to calculating and predicting, is saved
After the water project implementation, inlet COD concentration can rise to 2300mg/l or so by original 2000mg/l.According to of the prior art
Sewage treatment process and treatment facility, it is difficult to reach the effluent quality formulated before the project implementation, to qualified discharge and improvement reclaimed water
Water quality brings certain difficulty.The subject matter that existing sewage disposal device is present has：1. pretreating effect is poor, the pond of preliminary sedimentation tank
Hold it is larger, because can not spoil disposal in time, precipitating sludge residence time in pond is longer, causes organic contamination in anaerobic acidification, waste water
The increase of thing content, increases follow-up biochemical treatment load；2. treatment process is lacked before oxygen consumption aeration, water quality, water can not be adjusted,
Cellulose and hemicellulose are difficult to degrade in waste water, and very big processing pressure is brought to follow-up biochemical process.
3rd, the content of the invention：
The technical problems to be solved by the invention are：The deficiencies in the prior art are overcome to be integrated there is provided a kind of pulp and paper industry useless
Water treatment system, removes large-sized floating object and suspension to protect the operation safety of subsequent treatment facility, preliminary sedimentation tank is entered
Row forces spoil disposal, it is to avoid sludge anaerobic, reduces Pollutants in Wastewater load, improves the clearance of pollutant.
The present invention is for the technical solution adopted for solving the technical problem：
A kind of pulp and paper industry comprehensive wastewater treatment system, including collecting-tank, grid sewage-removing machine, fibre recovery machine, preliminary sedimentation tank,
Hydrolysis acidification pool, bioselection pond, aeration tank, second pond, three heavy pond, farmland irrigating device, dosing filter, running vehicle type pumps
Suction dredge, sludge concentration tank and sludge dewatering equipment, pulp and paper industry comprehensive wastewater are imported into after collecting-tank, through grid sewage-removing machine
Large-sized floating object and suspension are removed, separation of solid and liquid is carried out through fibre recovery machine, solid fiber is recycled, and liquid enters
Staticly settled into preliminary sedimentation tank；The sludge of preliminary sedimentation tank bottom forces sludge pump to be drawn onto sludge concentration tank through running vehicle type pump suction dredge
In, after the sludge in sludge concentration tank is dehydrated through sludge dewatering equipment, solid mud cake burning disposal, liquid waste are drained into hydrolysis acid
Change in pond, the clear liquid on preliminary sedimentation tank top is also drained into hydrolysis acidification pool；The clear liquid flowed out from hydrolysis acidification pool is sequentially entered
Into bioselection pond, aeration tank and second pond, the sludge ejected from hydrolysis acidification pool enters sludge concentration tank and dirt
Dewater treatment is carried out in mud dewaterer；Clear liquid from second pond out is entered after bleaching agent bleaching in three heavy ponds, from two
The sludge that heavy bottom of pond portion is ejected, which is pumped in sludge concentration tank, to be dehydrated；The clear liquid part flowed out from three heavy Chi Zhongzhong
It is back in production line and is recycled after being filtered through dosing filter, another part is discharged into farmland irrigating device
Row waste water reuse.
The fibre recovery machine is using inclined wire or rotates thin diagrid come recycled fiber；The preliminary sedimentation tank is sedimentation basin；It is described
Hydrolysis acidification pool is pulling flow type hydrolysis acidification pool, and the inside is provided with the ejector acted on plug-flow.
The aeration tank is ring aeration tank, and aeration mode is developed jointly using Shaanxi Tech Univ with Xi'an Communications University
, new and effective Gas feeding low pressure stream aeration system with independent intellectual property rights.
It is discharged into after the gas discharged from aeration tank and second pond is up to standard after testing in air.
In the present invention：
1st, fibre recovery machine：Using inclined wire or the thin diagrid of rotation come recycled fiber.
2nd, preliminary sedimentation tank：For sedimentation basin, the effect of regulating reservoir being had concurrently, can adjust water quality, water, waste water is thin through inclined wire or rotation
Still contain a certain amount of suspension after diagrid filtering（SS）, these SS are adversely affected to biological treatment, to ensure biological treatment
Effect, using the width flow settling pond with good mixing and sedimentation effect as preliminary sedimentation tank, waste water after the PROCESS FOR TREATMENT,
Clarified wastewater flows into bioselection pond, and precipitating sludge is sent in sludge dewatering equipment and handled.
3rd, hydrolysis acidification pool：Adjustable water quality, water, and acidification is hydrolyzed to waste water, make cellulose in waste water
And in the presence of hydrolysis acidification bacterium hydrolysis acidification occurs for the catabolite of hemicellulose, become the organic acid of small molecule, favorably
In the biological treatment of next step；In addition using mixing of the ejector with good mixed effect as pulling flow type hydrolysis acidification pool
Equipment, makes waste water well be mixed with biological sludge, meanwhile, ejector also has the effect of plug-flow.Waste water through hydrolysis acidification pool at
After reason, clarified wastewater flows into bioselection pond, and sludge is sent in sludge concentration tank and handled.
4th, bioselection pond：Dynamic (dynamical) rule is constituted according to activated sludge populations and is set, and creates suitable micro-
Biological growth conditions simultaneously select flocculability bacterium.Bioselection pond can also effectively suppress the amount reproduction of der Pilz, overcome
Sludge bulking, improves the stability of biosystem operation.
5th, aeration tank：It is a kind of improved form of oxidation ditch process for ring aeration tank.According to the characteristics of pulp-making waste-water,
New and effective confession that aeration mode is developed jointly using Shaanxi Tech Univ with Xi'an Communications University, with independent intellectual property rights
Gas formula low pressure stream aeration system.In aeration tank, by means of the absorption of aerobic microbiological, the effect of decomposing organic matter, make to give up
BOD in water5、CODcrReduction.
6th, secondary sedimentation tank：The effect of second pond is processed waste water is separated with activated sludge from mixed liquor,
Clarified wastewater is discharged into super efficiency shallow air flotation processing from sedimentation basin along drainage weir；The sludge for being deposited to second pond bottom is used
Mud scraper, which is scraped, is discharged to sludge dewatering equipment progress concentration.
The positive beneficial effect of the present invention is as follows：
1st, invention increases automatic pollutant removal grid maker, it can remove large-sized floating object and suspension to protect subsequent treatment to set
The operation safety applied.
2nd, the present invention adds running vehicle type pump suction dredge beside preliminary sedimentation tank, and pressure spoil disposal is carried out to preliminary sedimentation tank, it is to avoid dirty
Mud anaerobism, reduces Pollutants in Wastewater load.
3rd, invention increases hydrolysis acidification pool, it is possible to increase biomass, and a variety of hydrolysis bacterium can change molecular structure, big
Molecular organic is converted into small organic molecule, improves the biodegradability of waste water, improves the clearance of pollutant；It can effectively improve
The biological degradability of waste water, it is ensured that the effect of biological wastewater treatment.
4th, invention increases sludge concentration tank and sludge dewatering equipment, sludge dewatering treatment is the important composition of wastewater treatment
Part.Hydrolysis acidification pool sludge, second pond excess sludge drain into sludge concentration tank concentration first, are then entered using sludge dewatering equipment
Row dewater treatment, dehydrated sludge transports factory's heap and abandons or recycle.
5th, invention increases bioselection pond, it can effectively suppress the amount reproduction of der Pilz, overcome sludge bulking, improve
The stability of biosystem operation.
6th, invention increases aeration tank, by using efficient air supply jet aerator, oxygen-transfer efficiency is high, and power disappears
Low, stable and reliable operation is consumed, it is convenient to install and maintain, it is simple to operate.
7th, the present invention employs preliminary sedimentation tank, hydrolysis acidification pool, bioselection pond, aeration tank, second pond and three heavy ponds simultaneously,
There is the methods of this multiple different precipitations process to be simple and convenient to operate, efficiency high, small investment the characteristics of, to suspension and color
The removal of degree has preferable effect, while can also remove the COD of partial solubility.
4th, illustrate：
Fig. 1 is structural representation of the invention.
5th, embodiment：
Below in conjunction with the accompanying drawings and specific embodiment makes further explanation and description to the present invention：
Referring to Fig. 1, a kind of pulp and paper industry comprehensive wastewater treatment system, including collecting-tank 1, grid sewage-removing machine 2, fiber recovery
Machine 3, preliminary sedimentation tank 4, hydrolysis acidification pool 5, bioselection pond 6, aeration tank 7, second pond 8, three sink pond 9, farmland irrigating device 10, plus
Medicine filter 11, running vehicle type pump suction dredge 12, sludge concentration tank 13 and sludge dewatering equipment 14, pulp and paper industry comprehensive wastewater
It is imported into after collecting-tank 1, large-sized floating object and suspension is removed through grid sewage-removing machine 2, solid-liquid is carried out through fibre recovery machine 3
Separation, solid fiber is recycled, and liquid is entered to be staticly settled in preliminary sedimentation tank 4；The sludge of the bottom of preliminary sedimentation tank 4 is through running vehicle type pump
Suction dredge 12 forces sludge pump to be drawn onto in sludge concentration tank 13, and the sludge in sludge concentration tank 13 is dehydrated through sludge dewatering equipment 14
Afterwards, the burning disposal of solid mud cake 15, liquid waste are drained into hydrolysis acidification pool 5, and the clear liquid on the top of preliminary sedimentation tank 4 is also drained into water
Solve acidification pool 5；The clear liquid flowed out from hydrolysis acidification pool 5 is sequentially entered to bioselection pond 6, aeration tank 7 and second pond 8
In, the sludge ejected from hydrolysis acidification pool 5 enters in sludge concentration tank 13 and sludge dewatering equipment 14 and carries out dewater treatment；
Clear liquid from second pond 8 out enters 9, the sludge ejected from the bottom of second pond 8 in three heavy ponds after bleaching agent bleaching
It is pumped in sludge concentration tank 13 and is dehydrated；The clear liquid part flowed out in 9 from three heavy ponds is through dosing filter 11
It is back in production line and is recycled after filtering, it is sharp again that another part is discharged into progress waste water in farmland irrigating device 10
With.
Fibre recovery machine 3 is using inclined wire or rotates thin diagrid come recycled fiber；Preliminary sedimentation tank 4 is sedimentation basin, hydrolysis acidification pool 5
For pulling flow type hydrolysis acidification pool, the inside is provided with the ejector acted on plug-flow, and aeration tank 7 is ring aeration tank.
It is discharged into after the gas discharged from aeration tank 7 and second pond 8 is up to standard after testing in air.
Invention increases automatic pollutant removal grid maker 2, it can remove large-sized floating object and suspension to protect follow-up place
Manage the operation safety of facility；The side of preliminary sedimentation tank 4 sets running vehicle type pump suction dredge 12, and pressure spoil disposal is carried out to preliminary sedimentation tank 4, it is to avoid dirty
Mud anaerobism, reduces Pollutants in Wastewater load.
Invention increases hydrolysis acidification pool 5, it is possible to increase biomass, and a variety of hydrolysis bacterium can change molecular structure, big
Molecular organic is converted into small organic molecule, improves the biodegradability of waste water, improves the clearance of pollutant；It can effectively improve
The biological degradability of waste water, it is ensured that the effect of biological wastewater treatment.
Invention increases sludge concentration tank 13 and sludge dewatering equipment 14, sludge dewatering treatment is the important set of wastewater treatment
Into part.Sludge, the remaining sludge of second pond 8 of hydrolysis acidification pool 5 are drained into sludge concentration tank 13 and concentrated first, are then used
Sludge dewatering equipment 14 carries out dewater treatment, and dehydrated sludge transports factory's heap and abandons or recycle.
Invention increases bioselection pond 6, it can effectively suppress the amount reproduction of der Pilz, overcome sludge bulking, improve
The stability of biosystem operation.
Invention increases aeration tank 7, by using efficient air supply jet aerator, oxygen-transfer efficiency is high, and power disappears
Low, stable and reliable operation is consumed, it is convenient to install and maintain, it is simple to operate.
The present invention simultaneously employ preliminary sedimentation tank 4, hydrolysis acidification pool 5, bioselection pond 6, aeration tank 7, second pond 8 and three sink
Pond 9, there is process to be simple and convenient to operate for the methods of this multiple different precipitations, efficiency high, small investment the characteristics of, to suspension
Removal with colourity has preferable effect, while can also remove the COD of partial solubility.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, it is all
It is any simple modification, equivalent variations and the modification made according to the technical spirit of the present invention to above example, still falls within
Within the protection domain of technical solution of the present invention.
Claims (4)
1. a kind of pulp and paper industry comprehensive wastewater treatment system, it is characterised in that：At the pulp and paper industry comprehensive wastewater
Reason system includes collecting-tank（1）, grid sewage-removing machine（2）, fibre recovery machine（3）, preliminary sedimentation tank（4）, hydrolysis acidification pool（5）, it is biological
Select pond（6）, aeration tank（7）, second pond（8）, three heavy ponds（9）, farmland irrigating device（10）, dosing filter（11）, OK
Vehicle type pump suction dredge（12）, sludge concentration tank（13）And sludge dewatering equipment（14）, pulp and paper industry comprehensive wastewater is imported into collection
Pond（1）Afterwards, through grid sewage-removing machine（2）Large-sized floating object and suspension are removed, through fibre recovery machine（3）Carry out solid-liquid point
From solid fiber is recycled, and liquid enters preliminary sedimentation tank（4）In staticly settle；Preliminary sedimentation tank（4）The sludge of bottom is through running vehicle type
Pump suction dredge（12）Sludge pump is forced to be drawn onto sludge concentration tank（13）In, sludge concentration tank（13）In sludge through sludge dewatering equipment
（14）After dehydration, solid mud cake（15）Burning disposal, liquid waste are drained into hydrolysis acidification pool（5）In, preliminary sedimentation tank（4）Top
Clear liquid is also drained into hydrolysis acidification pool（5）；From hydrolysis acidification pool（5）In the clear liquid that flows out sequentially enter bioselection pond
（6）, aeration tank（7）And second pond（8）In, from hydrolysis acidification pool（5）In the sludge that ejects enter sludge concentration tank（13）
And sludge dewatering equipment（14）Middle carry out dewater treatment；From second pond（8）In out clear liquid three are entered after bleaching agent bleaching
In heavy pond（9）, from second pond（8）The sludge that bottom is ejected is pumped to sludge concentration tank（13）It is middle to be dehydrated；From three heavy ponds
In（9）In flow out clear liquid a part through dosing filter（11）It is back in production line and is recycled after filtering, separately
A part is discharged into farmland irrigating device（10）Middle carry out waste water reuse.
2. pulp and paper industry comprehensive wastewater treatment system according to claim 1, it is characterised in that：The fiber recovery
Machine（3）Using inclined wire or the thin diagrid of rotation come recycled fiber；The preliminary sedimentation tank（4）For sedimentation basin；The hydrolysis acidification pool（5）For
Pulling flow type hydrolysis acidification pool, the inside is provided with the ejector acted on plug-flow.
3. pulp and paper industry comprehensive wastewater treatment system according to claim 1, it is characterised in that：The aeration tank
（7）For ring aeration tank.
4. pulp and paper industry comprehensive wastewater treatment system according to claim 1, it is characterised in that：From aeration tank（7）
And second pond（8）It is discharged into after the gas of middle discharge is up to standard after testing in air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710670874.1A CN107253806A (en) | 2017-08-08 | 2017-08-08 | Pulp and paper industry comprehensive wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710670874.1A CN107253806A (en) | 2017-08-08 | 2017-08-08 | Pulp and paper industry comprehensive wastewater treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107253806A true CN107253806A (en) | 2017-10-17 |
Family
ID=60025814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710670874.1A Pending CN107253806A (en) | 2017-08-08 | 2017-08-08 | Pulp and paper industry comprehensive wastewater treatment system |
Country Status (1)
| Country | Link |
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| CN (1) | CN107253806A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422972A (en) * | 2019-09-05 | 2019-11-08 | 中山联合鸿兴造纸有限公司 | A kind of process of aerobic moisture section reuse |
| CN112624532A (en) * | 2021-01-21 | 2021-04-09 | 四川环龙生活用品有限公司 | Papermaking wastewater environment-friendly treatment system and treatment method |
| CN112796150A (en) * | 2020-12-24 | 2021-05-14 | 珠海横琴森禾生物科技控股有限公司 | Preparation method of paper pulp fiber |
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|---|---|---|---|---|
| WO2013010388A1 (en) * | 2011-07-21 | 2013-01-24 | 波鹰(厦门)科技有限公司 | Apparatus for treating landfill leachate and treatment method therefor |
| CN204325082U (en) * | 2014-12-04 | 2015-05-13 | 南京宏博环保实业有限公司 | A kind for the treatment of system of papermaking midcourse wastewater |
| CN104773911A (en) * | 2015-04-01 | 2015-07-15 | 绍兴柯桥江滨水处理有限公司 | Device and method for treating printing and dyeing wastewater |
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2017
- 2017-08-08 CN CN201710670874.1A patent/CN107253806A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013010388A1 (en) * | 2011-07-21 | 2013-01-24 | 波鹰(厦门)科技有限公司 | Apparatus for treating landfill leachate and treatment method therefor |
| CN204325082U (en) * | 2014-12-04 | 2015-05-13 | 南京宏博环保实业有限公司 | A kind for the treatment of system of papermaking midcourse wastewater |
| CN104773911A (en) * | 2015-04-01 | 2015-07-15 | 绍兴柯桥江滨水处理有限公司 | Device and method for treating printing and dyeing wastewater |
Non-Patent Citations (1)
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| 张超等: "某造纸企业污水处理技改方案", 《科技风》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422972A (en) * | 2019-09-05 | 2019-11-08 | 中山联合鸿兴造纸有限公司 | A kind of process of aerobic moisture section reuse |
| CN112796150A (en) * | 2020-12-24 | 2021-05-14 | 珠海横琴森禾生物科技控股有限公司 | Preparation method of paper pulp fiber |
| CN112624532A (en) * | 2021-01-21 | 2021-04-09 | 四川环龙生活用品有限公司 | Papermaking wastewater environment-friendly treatment system and treatment method |
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Effective date of abandoning: 20231017 |