CN205011552U - Paper making wastewater treatment system - Google Patents
Paper making wastewater treatment system Download PDFInfo
- Publication number
- CN205011552U CN205011552U CN201520426871.XU CN201520426871U CN205011552U CN 205011552 U CN205011552 U CN 205011552U CN 201520426871 U CN201520426871 U CN 201520426871U CN 205011552 U CN205011552 U CN 205011552U
- Authority
- CN
- China
- Prior art keywords
- wastewater treatment
- air
- water
- treatment system
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses a paper making wastewater treatment system, its characterized in that: connect gradually microstrainer (1), equalizing basin (2), air supporting device (3), hydrolysis -acidification pool (4), contact oxidation tank (5), sedimentation tank (6), middle pond (7), mechanical filter (8), activated carbon filter (9) and clean water basin (10), wherein air supporting device (3) are connected with charge device A (13), contact oxidation tank (5) are connected with fan (12), sedimentation tank (6) are connected with charge device B (11), sedimentation tank (6) also with mechanical filter (8) lug connection, middle pond (7) are connected with concentrated pond (15), hydroextractor (16). This system adopts hydrolytic acidification + catalytic oxidation technology efficient handling papermaking waste water, and the quality of water after the processing reaches the relevant requirement of " slurrying paper industry water standard for discharge of pollutants " (GB3544 - 2008) well table 2, reaches and reduces the incidence of disease, improves health, improves ecological environment's purpose.
Description
Technical field
The utility model belongs to field of Environment Protection waste disposal plant, relates to a kind of papermaking wastewater treatment system particularly.
Background technology
Paper waste organic content is higher, and BOD/COD value is also higher, belongs to the good high-concentration organic industrial waste water of a kind of biochemical.
Waste water main source: factory effluent is mainly from the making beating of slip house, flushing cinder, screening the pulp, the concentrated and operation such as the purification screening of machine room and the wet end dehydration of paper machine.Principal pollutant in waste water comprise the pollutent such as hemicellulose, lignin and derivative thereof, fiber fines, mineral filler, dyestuff.Xylogen and derivative biology, hemicellulose etc. are the main components forming COD level BOD; Fiber fines, mineral filler etc. mainly form SS.The feature of waste water is that SS, COD are all higher.In the composition of COD, non-solubility COD is higher, and solvability COD is lower; And solvability COD comparatively difficult for biological degradation.
Summary of the invention
The purpose of this utility model is to provide a kind of papermaking wastewater treatment system, this system adopts the effective Processing Paper Wastewater of acidication+contact oxidation technology, water quality after process reaches the related request of table 2 in " pulp and paper industry pollution discharge standard " (GB3544-2008), reach minimizing disease, improve health, the object of improving the ecological environment; Mud (paper pulp) recoverable that system produces, realizes resource recovery, reduces the wasting of resources.
The purpose of this utility model and solve its technical problem underlying and realize by the following technical solutions: a kind of papermaking wastewater treatment system, connect Microfilter 1, equalizing tank 2, air-floating apparatus 3, hydrolysis acidification pool 4, contact-oxidation pool 5, settling tank 6, intermediate pool 7, mechanical filter 8, activated charcoal filter 9 and clean water basin 10 successively, wherein air-floating apparatus 3 is connected with chemicals dosing plant A13; Contact-oxidation pool 5 is connected with blower fan 12; Settling tank 6 is connected with chemicals dosing plant B11; Settling tank 6 is also directly connected with mechanical filter 8; Intermediate pool 7 is connected with concentration basin 15, water extracter 16.
Described air-floating apparatus 3 scrapes mud system by air supporting casing, aerator, chain type, scum silica frost collects and discharge system, overflow water system, electrical control system, glass rotameter, reflux line form.
Described Microfilter 1 and air-floating apparatus 3 are connected with collection stock tank 14 and enter slip house.
3 D elastic filler and aerating pipelines system are set in described contact-oxidation pool 5, and in aerating pipelines system, micro-hole aerator are installed.
Described elastic filler is made up of the strand of the PP material of plucking and twisted rope, and rounded hairbrush shape, specific surface area is large.
The utility model compared with prior art has obvious advantage and beneficial effect.From above technical scheme, the utility model adopts the operational path based on biochemical treatment, specifically first this factory effluent is carried out anaerobic pretreatment, to improve the processing efficiency of waste water, save construction costs, reduce processing cost, then aerobic treatment is carried out, to meet emission request.In order to improve treatment effect, aerobic treatment main process employing advanced technology, new process for treating waste water acidication+catalytic oxidation treatment process that technical process is simple, treatment effect is stablized, anti impulsion load ability is strong.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is for using process flow sheet of the present utility model.
Mark in figure: 1, Microfilter, 2, equalizing tank, 3, air-floating apparatus, 4, hydrolysis acidification pool, 5, contact-oxidation pool, 6, settling tank, 7, intermediate pool, 8, mechanical filter, 9, activated charcoal filter, 10, clean water basin, 11, chemicals dosing plant B, 12, blower fan, 13, chemicals dosing plant A, 14, stock tank is collected, 15, concentration basin, 16, water extracter.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to according to a kind of papermaking wastewater treatment system embodiment, feature and the effect thereof that the utility model proposes, be described in detail as follows.
See Fig. 1-2, a kind of papermaking wastewater treatment system, connect Microfilter 1, equalizing tank 2, air-floating apparatus 3, hydrolysis acidification pool 4, contact-oxidation pool 5, settling tank 6, intermediate pool 7, mechanical filter 8, activated charcoal filter 9 and clean water basin 10 successively, wherein air-floating apparatus 3 is connected with chemicals dosing plant A13; Contact-oxidation pool 5 is connected with blower fan 12; Settling tank 6 is connected with chemicals dosing plant B11; Settling tank 6 is also directly connected with mechanical filter 8; Intermediate pool 7 is connected with concentration basin 15, water extracter 16.
Described air-floating apparatus 3 scrapes mud system by air supporting casing, aerator, chain type, scum silica frost collects and discharge system, overflow water system, electrical control system, glass rotameter, reflux line form.
Described Microfilter 1 and air-floating apparatus 3 are connected with collection stock tank 14 and enter slip house.
3 D elastic filler and aerating pipelines system are set in described contact-oxidation pool 5, and in aerating pipelines system, micro-hole aerator are installed.
Described elastic filler is made up of the strand of the PP material of plucking and twisted rope, and rounded hairbrush shape, specific surface area is large.
Use the process explanation of native system:
A, Microfilter
Factory effluent is collected through pipeline and is entered in Microfilter, and Microfilter is separated the small suspended matter (pulping fibre etc.) existed in sewage to greatest extent, realizes the object of solid-liquid separation.
B, equalizing tank
Because wastewater flow fluctuation is comparatively large, excessive change will be unfavorable for the normal running of waste water disposal facility equipment and ensure treatment effect.Because biochemical unit is comparatively responsive to water quality, the water yield and impact load, for ensureing that sewage works water quality and quantity is stablized, Operation system setting equalizing tank, its object is to equal to sewage enforcement water quality and quantity and regulating, ensure Sewage treatment systems stable smooth operation, ensure total system qualified discharge.
C, air-floating apparatus
Air flotation processing device scrapes mud system by air supporting casing, aerator, chain type, scum silica frost collects and discharge system, overflow water system, electrical control system, glass rotameter, reflux line etc. and form.
Containing a large amount of cotton-shaped suspended substances and dissolved organic matter in this project sewage.Partial solubility organism under certain condition, non-solution solution material can be converted into, this technique makes partial solubility organism pass at adding coagulant in sewage and flocculation agent and turns to non-solubility material, again non-for major part solution solution material (i.e. SS) is removed in pneumatically supported mode, to reduce SS, COD, the BOD in sewage, reach the object of purifying waste water.
Sewage inherent regulation pond is promoted to air-floating apparatus through sewage pump, add after coagulating agent and flocculation agent through chemicals dosing plant and enter air floatation machine aeration section, this device is that the high speed rotating utilizing air to transport loose gas impeller bottom pipe forms a vacuum zone in water, air on liquid level is imported in water, thus produces a large amount of fine gas bubbles.Microbubble is directly between 10 ~ 300 μm, and in microbubble uphill process, impurity wadding grain adheres to bubble surface, and relies on buoyancy to make it float up to the water surface, takes suspended solid to the water surface.The suspended substance floated on the surface is removed along motion of melt surface by slag scraper continuous print.Slag scraper is driven back and forth by a stepless speed adjusting gear, pass through chain gear, scraper plate moves along the whole width levels of air flotation slot, suspended solid is pushed into mud receiving tank, entering mud discharging pipeline, be equipped with the spiral propeller of level in mud discharging pipeline, send into after sludge collector through collected mud and get rid of.The outlet of sewage after purification before discharge first below metal sheet enters overflow groove and discharges thereupon.
Open reflux line stretches bottom air flotation slot from aeration section, air floatation machine can form a negative pressuren zone having at the bottom of the pond of return line, this suction function can make waste water only then return air supporting section in aeration zone from the bottom backflow in pond, this process ensures when not having flow, air supporting is constantly carried out.
D, acidication
Non-solubility material in sewage and macromolecule organic are huge because of relative molecular weight, can not permeate through cell membranes, therefore directly can not utilize for bacterium, and it is lower directly to enter aerobic treatment efficiency, and it is decomposed into small molecules at hydrolysis stage by bacterium extracellular enzyme.These micromolecular hydrolysates can be dissolved in water and permeate through cell membranes is utilized by bacterium.Hydrolytic process is usually comparatively slow, and the concentration etc. of many factors as temperature, organic composition, hydrolysate may affect the speed of hydrolysis and the degree of hydrolysis.Souring stage, micromolecular compound is more simple compound at the cellular transformation of acidifying bacterium and is secreted into extracellular.
Sewage after acidication greatly can reduce rear class aerobic treatment burden.
E, aerobic treatment
Sewage after acidication enters aerobic treatment process unit, and this project aerobic treatment adopts contact oxidation technology.
Contact oxidation method is a kind of aerobic biological film method technique, and microorganism is grown in water with microbial film form and suspended state, and therefore it has the feature of both active sludge and biological filter concurrently.3 D elastic filler and aerating pipelines system are set in pond, and in aerating pipelines system, micro-hole aerator are installed.Elastic filler is made up of the strand of the PP material of plucking and twisted rope, rounded hairbrush shape, and specific surface area is large, can adhere to a large amount of microorganisms (microbial film).This biofilm is fast, and demoulding is easy, and during operation, strand can play fabulous cutting action to air filled cavity, makes air pocket cut into small bubbles, can increase gas liquid interfacial area, promotes the transmission of oxygen, thus improves treatment effect.Micro-hole aerator intensity is high, not fragile, uniform air distribution, and drag losses is little, anticorrosive, the utilization ratio of oxygen up to more than 15%, with elastic filler with the use of, larger energy-saving effect can be reached.Because the specific surface area of filler is large, in pond, the utilization ratio of oxygen is high, has higher volumetric loading, and shock-resistant; Biological contact oxidation pond does not need sludge recirculation system, there is not sludge bulking problem, and operational management is convenient; In biological contact oxidation pond, biosolids amount is many, and when organic volumetric loading is higher, its F/M can remain on certain level.Finally CO is broken down at biological contact oxidation pond organic carbon hydrate
2and H
2o.
Acidication is combined with contact oxidation technology, can realize removing BOD, COD and good Nitrogen/Phosphorus Removal preferably, effectively can meet the feature of this project sewage, ensures that stable effluent quality is up to standard.
F, settling tank
Contact-oxidation pool water outlet gravity flow enters settling tank, carries out solid-liquid separation and removes the microbial film and other impurity that peel off.In pond, sludge part is back in hydrolysis acidification pool, and surplus sludge pump is carried in sludge sump.
G, advanced treatment of wastewater
Sewage after precipitation process is after mechanical filter, activated charcoal filter filter, SS and COD further in removal sewage, stablizes wastewater treatment efficiency on the one hand, expands the reuse approach of the rear sewage of process on the other hand.Sewage after filtering can directly discharge or reuse.
H, sludge disposal
Microfilter and air-floating apparatus sewage sludge storage are in collection stock tank, and in pond, the regular pump of mud is carried to slip house production reuse.
To produce a certain amount of biological sludge in biological wastewater treatment process, its water ratio is high, and volume is large, is not easy to conveying and disposes.Because this project sludge quantity is large, if do not deal carefully with and dispose, will cause secondary pollution, the design arranges sludge dehydration device, mud enter concentration basin concentrated after supernatant liquor be back to equalizing tank, bed mud after water extracter dewaters by owner's periodic cleaning.
Native system operative norm: the related request of table 2 in " pulp and paper industry pollution discharge standard " (GB3544-2008); Native system paper waste Inlet and outlet water water-quality guideline, sees the following form.
Table 1-1 Inlet and outlet water water-quality guideline table look-up
| Project | Influent quality index | Effluent quality index |
| PH(zero dimension) | 6~9 | 6~9 |
| COD cr（mg/L） | ≤1200 | ≤80 |
| BOD 5（mg/L） | ≤350 | ≤20 |
| SS（mg/L） | ≤1500 | ≤30 |
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, anyly do not depart from technical solutions of the utility model content, the any simple modification done above embodiment according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (5)
1. a papermaking wastewater treatment system, it is characterized in that: connect Microfilter (1), equalizing tank (2), air-floating apparatus (3), hydrolysis acidification pool (4), contact-oxidation pool (5), settling tank (6), intermediate pool (7), mechanical filter (8), activated charcoal filter (9) and clean water basin (10) successively, wherein air-floating apparatus (3) and chemicals dosing plant A(13) be connected; Contact-oxidation pool (5) is connected with blower fan (12); Settling tank (6) and chemicals dosing plant B(11) be connected; Settling tank (6) is also directly connected with mechanical filter (8); Intermediate pool (7) is connected with concentration basin (15), water extracter (16).
2. a kind of papermaking wastewater treatment system as claimed in claim 1, is characterized in that: described air-floating apparatus (3) scrapes mud system by air supporting casing, aerator, chain type, scum silica frost collects and discharge system, overflow water system, electrical control system, glass rotameter, reflux line form.
3. a kind of papermaking wastewater treatment system as claimed in claim 1, is characterized in that: described Microfilter (1) and air-floating apparatus (3) are connected with collection stock tank (14) and enter slip house.
4. a kind of papermaking wastewater treatment system as claimed in claim 1, is characterized in that: arrange 3 D elastic filler and aerating pipelines system in described contact-oxidation pool (5), and install micro-hole aerator in aerating pipelines system.
5. a kind of papermaking wastewater treatment system as claimed in claim 4, is characterized in that: described elastic filler is made up of the strand of the PP material of plucking and twisted rope, rounded hairbrush shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520426871.XU CN205011552U (en) | 2015-06-19 | 2015-06-19 | Paper making wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520426871.XU CN205011552U (en) | 2015-06-19 | 2015-06-19 | Paper making wastewater treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205011552U true CN205011552U (en) | 2016-02-03 |
Family
ID=55210166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520426871.XU Expired - Fee Related CN205011552U (en) | 2015-06-19 | 2015-06-19 | Paper making wastewater treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205011552U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106957127A (en) * | 2017-03-21 | 2017-07-18 | 郑州航空工业管理学院 | A kind of combination treatment method of paper waste high standard discharge |
| CN108439717A (en) * | 2018-04-25 | 2018-08-24 | 东至东方纸业有限公司 | A kind of papermaking sewage processing system |
-
2015
- 2015-06-19 CN CN201520426871.XU patent/CN205011552U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106957127A (en) * | 2017-03-21 | 2017-07-18 | 郑州航空工业管理学院 | A kind of combination treatment method of paper waste high standard discharge |
| CN108439717A (en) * | 2018-04-25 | 2018-08-24 | 东至东方纸业有限公司 | A kind of papermaking sewage processing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100402448C (en) | Paper-making effluent purifying treatment process | |
| CN103641272B (en) | High concentrated organic wastewater and percolate zero-discharge treatment system | |
| CN103466884A (en) | Process for treating waste paper pulping and papermaking waste water | |
| CN101973679A (en) | Distributed sewage treatment and regeneration technology | |
| CN204897639U (en) | Novel effluent disposal system slaughters | |
| CN103613241B (en) | A kind of Biodiesel wastewater treatment device | |
| CN207130111U (en) | A kind of sweets based food wastewater treatment standard emission system | |
| CN100484886C (en) | Process for treatnig paper-making waste water of waste paper | |
| CN108467154A (en) | A kind of SBR waste water treatment process of soybean lecithin production | |
| CN205011552U (en) | Paper making wastewater treatment system | |
| CN207512019U (en) | A kind of sanitary sewage, technique waste water, stripper Wastewater Concentrated device | |
| CN206266387U (en) | A kind of sewage disposal and intermediate water reuse system | |
| CN203360228U (en) | Tobacco wastewater treatment system | |
| CN208136048U (en) | A kind of vegetables juicing waste water treatment system | |
| CN111252994A (en) | Domestic fungus wastewater treatment method | |
| CN105502660A (en) | Reverse-flow type biological contact device | |
| CN212293244U (en) | Treatment system for circulating sewage and RO (reverse osmosis) concentrated water in petrochemical industry | |
| CN210764846U (en) | Papermaking wastewater treatment system | |
| CN210796140U (en) | Domestic sewage treatment device | |
| CN209853832U (en) | Device for treating sewage by using large-caliber sewage dry pipeline | |
| CN110183056B (en) | Carbon and nitrogen removal device and method for high-ammonia-nitrogen high-organic-matter wastewater | |
| CN209481417U (en) | A kind of culturing wastewater processing system | |
| CN209065691U (en) | A kind of chemical fiber waste water depth recycling processing system | |
| CN207294534U (en) | A kind of textile waste processing system | |
| CN206447725U (en) | A kind of seafood processing wastewater processing unit |
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: 20160203 Termination date: 20170619 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |