CN204529609U - Cleaning pulping wastewater treatment equipment - Google Patents
Cleaning pulping wastewater treatment equipment Download PDFInfo
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- CN204529609U CN204529609U CN201520174822.1U CN201520174822U CN204529609U CN 204529609 U CN204529609 U CN 204529609U CN 201520174822 U CN201520174822 U CN 201520174822U CN 204529609 U CN204529609 U CN 204529609U
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Abstract
The utility model relates to a kind of cleaning pulping wastewater treatment equipment, belongs to technical field of waste water processing.Described cleaning pulping wastewater treatment equipment, wastewater equalization pond is connected with waste water drainage system successively with Microfilter, mixed reaction pond, coagulative precipitation tank, mixing pond, EGSB anaerobic reactor, anaerobic precipitation pond, anaerobic hydrolysis pond, DAT-IAT pond, and mixed reaction pond is also connected with feeder; Coagulative precipitation tank, anaerobic precipitation pond are all connected with sludge thickener with DAT-IAT pond, and sludge thickener is connected with mud cake innocuity disposal system successively with diaphragm filter press; DAT-IAT pond is also connected with air accumulator.The utility model achieves the qualified discharge of pulp-making waste-water, the biogas of generation is used for Sewage treatment systems simultaneously, reduces production cost, energy-conservation environmental protection again.
Description
Technical field
The utility model relates to a kind of cleaning pulping wastewater treatment equipment, belongs to technical field of waste water processing.
Background technology
Along with the development of pulp and paper industry and people are to the growing interest of environment, chemical-mechanical pulping (abbreviation reducing rules) technology, comprise chemimechanical pulp (CMP), CTMP (CTMP), bleached chemi-mechanical pulp (BCMP), SCMP (SCMP) and Alkaline Peroxide Mechanical Pulp (AP) etc., become one of important trend of current pulp and paper industry development.Chemical-mechanical pulping belongs to two step pulping methods, and namely fibrous material is before entering mechanical jordaning, first does gentle pre-treatment with pharmaceutical chemicals, therefore, has the features such as paper pulp yield is high, intensity good, refining energy consumption is low, contaminated wastewater is few.Pollution substance in chemical-mechanical pulping waste water, is mainly derived from the organic compound of stripping in production process, the pharmaceutical chemicals of remnants and the fiber fines of loss.The organic compound content dissolved depends on pulping process and raw material type.Although the fibrous material adopted is Novel environment-friendlymaterial material, i.e. agricultural waste material cotton stem, wheat straw, straw etc., be called cleaning chemistry mechanical feedback, but the waste water discharged due to it still contains multiple toxic chemical substance, and COD and BOD is very high, its waste water pollution problem is still very important, and for this reason, the research for its contaminated wastewater characteristic and treatment technology thereof has great importance.
The treatment process of paper-making effluent is different compared with commonly industrial wastewater, and the treatment process of current paper waste mainly contains Physical, chemical method, biological process and physico-chemical processes.Wherein being most widely used of biological process, has become one of main method of paper waste second-stage treatment.But the water outlet of existing treatment unit process is difficult to qualified discharge.
Utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of cleaning pulping wastewater treatment equipment, it achieves the qualified discharge of pulp-making waste-water, the biogas of generation is used for Sewage treatment systems simultaneously, reduce production cost, energy-conservation environmental protection again.
The utility model solves the technical scheme that its technical problem adopts:
Described cleaning pulping wastewater treatment equipment, wastewater equalization pond is connected with waste water drainage system successively with Microfilter, mixed reaction pond, coagulative precipitation tank, mixing pond, EGSB anaerobic reactor, anaerobic precipitation pond, anaerobic hydrolysis pond, DAT-IAT pond, and mixed reaction pond is also connected with feeder; Coagulative precipitation tank, anaerobic precipitation pond are all connected with sludge thickener with DAT-IAT pond, and sludge thickener is connected with mud cake innocuity disposal system successively with diaphragm filter press; DAT-IAT pond is also connected with air accumulator.
Connection line between described anaerobic precipitation pond and EGSB anaerobic reactor is connected with the top of EGSB anaerobic reactor.
Described DAT-IAT pond is also connected with anaerobic hydrolysis pond.
Described EGSB anaerobic reactor is also connected with biogas generator successively with water-sealed tank, gas-holder, spark arrester.
Be provided with water-sealed tank between described gas-holder and spark arrester, water-sealed tank is as stand-by facilities herein, to increase safety coefficient when spark arrester breaks down.
Workshop cleaning pulping waste water enters wastewater equalization pond, regulates pH to 7.5-8.5, makes water quantity and quality even, then promotes the waste water after regulating with pump and enter mixed reaction pond after Microfilter removal bulk suspended substance, add FeSO simultaneously by feeder
4, the medicament hybrid reaction such as PAC (polymerize aluminum chloride) and PAM (polyacrylamide), then enter coagulative precipitation tank and precipitate.After supernatant liquor water outlet enters mixing pond, be lifted into EGSB anaerobic reactor with pump and carry out anaerobic biological treatment, after getting rid of most of organism, waste water gravity flow enters anaerobic precipitation pond and precipitates, the backflow that reflux ratio is 200% was carried out in the water outlet of EGSB anaerobic reactor before entering anaerobic precipitation pond, the supernatant liquor gravity flow of anaerobic precipitation pond enters anaerobic hydrolysis pond, and then to be promoted by pump and enter DAT-IAT pond and carry out final Aerobic biological process, farthest to remove the organic pollutant in waste water, standard water discharge is discharged.
The mud that DAT-IAT pond produces carries out the backflow that reflux ratio is 200%, is to better remove ammonia nitrogen.
EGSB anaerobic reactor is a kind of novel anaerobic reactor after UASB, high water-base fluid and high yield gas load make mud fully mix with organism, mud is in sufficient swelling state, rate of mass transfer is high, substantially increase anaerobic reaction speed and organic loading, add and adopt effluent recycling technology, can the concentration of dilute sulphuric acid salt and other hazardous and noxious substances, can fully contact between sewage with microorganism.
DAT-IAT pond is a kind of aerobic treatment system, namely continuous intermittent aeration sequencing batch active sludge sewage treatment process is adopted, it is a kind of modified version processing mode of sequencing batch active sludge (SBR), it is between traditional activated sludge process and typical SBR technique, namely there is continuity and the high efficiency of traditional activated sludge process, there is again the handiness of SBR method, be applicable to the situation of water quality and quantity change.
The excess sludge in the mud of coagulative precipitation tank, the mud in anaerobic precipitation pond and DAT-IAT pond enters after sludge thickener carries out gravity concentration, carries out processed by diaphragm filter press.All mud cakes and grid slag all do resource utilization harmlessness disposing according to the requirement of local environmental administration.
The biogas that EGSB anaerobic reactor produces enters gas-holder after water seal, and by spark arrester after biogas generator generating, can be used for the self-sufficiency of Sewage treatment systems.
The beneficial effect that the utility model has is:
EGSB anaerobic reactor in the utility model, rate of mass transfer is high, substantially increase anaerobic reaction speed and organic loading, add that the water outlet of EGSB anaerobic reactor carried out 200% backflow before entering anaerobic precipitation pond, can the concentration of dilute sulphuric acid salt and other hazardous and noxious substances, fully can contact between sewage with microorganism, improve water treatment effect; DAT-IAT pond has continuity and the high efficiency of traditional activated sludge process, has again the handiness of SBR method, is applicable to the multiple situation of water quality and quantity change; The biogas that EGSB anaerobic reactor produces simultaneously enters methane power generating system, and the electric energy of generation returns Sewage treatment systems, reduces the working cost of whole Sewage treatment systems.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
In figure: 1, wastewater equalization pond; 2, Microfilter; 3, feeder; 4, mixed reaction pond; 5, coagulative precipitation tank; 6, pond is mixed; 7, EGSB anaerobic reactor; 8, water-sealed tank; 9, gas-holder; 10, spark arrester; 11, biogas generator; 12, anaerobic precipitation pond; 13, anaerobic hydrolysis pond; 14, DAT-IAT pond; 15, air accumulator; 16, waste water drainage system; 17, mud cake innocuity disposal system; 18, diaphragm filter press; 19, sludge thickener.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
Unitary device used is commercial equipment.
Embodiment 1
For certain Mierocrystalline cellulose enterprise produces the project assorted cleaning pulping wastewater treatment and reuse device of 30,000 tons of clean high yield pulp1 reducing rules per year.This project adopts cotton stalk to produce clean high yield pulp1 reducing rules.Pending cleaning pulping waste water mainly includes washes careless waste water, twin screw waste water, shove waste water, slag pulp waste water four part, amounts to 3000m
3/ d.Reuse water yield 200m after process
3/ d, dry mud outward transport 10m
3/ d.Influent quality is in table 1.
Table 1 influent quality
| Project | COD cr | BOD 5 | SS | NH 3-N | pH |
| Unit | mg/L | mg/L | mg/L | mg/L | / |
| Numerical value | 42000 | 21000 | 6300 | 80 | 8～9 |
The efflux wastewater of this project meets the People's Republic of China (PRC) " sewage enters town sewer water quality standard " (CJ343-2010) B grade water quality standard.The concrete Con trolling index of efflux wastewater is in table 2.
Table 2 effluent quality (efflux wastewater) Con trolling index
As shown in Figure 1, described cleaning pulping wastewater treatment equipment, wastewater equalization pond 1 and Microfilter 2, mixed reaction pond 4, coagulative precipitation tank 5, mix pond 6, EGSB anaerobic reactor 7, anaerobic precipitation pond 12, anaerobic hydrolysis pond 13, DAT-IAT pond 14 be connected successively with waste water drainage system 16, mixed reaction pond 4 is also connected with feeder 3; Coagulative precipitation tank 5, anaerobic precipitation pond 12 are all connected with sludge thickener 19 with DAT-IAT pond 14, and sludge thickener 19 is connected with mud cake innocuity disposal system 17 successively with diaphragm filter press 18; DAT-IAT pond 14 is also connected with air accumulator 15.
Connection line between described anaerobic precipitation pond 12 and EGSB anaerobic reactor 7 is connected with the top of EGSB anaerobic reactor 7.
Described DAT-IAT pond 14 is also connected with anaerobic hydrolysis pond 13.
Described EGSB anaerobic reactor 7 is also connected with biogas generator 11 successively with water-sealed tank 8, gas-holder 9, spark arrester 10.
Workshop cleaning pulping waste water enters wastewater equalization pond 1, regulates pH to 8.0, makes water quantity and quality even, and the waste water after then promoting adjustment with pump is removed after bulk suspended substance through Microfilter 2 and entered mixed reaction pond 4, adds FeSO by feeder 3 simultaneously
4, the medicament hybrid reaction such as PAC (polymerize aluminum chloride) and PAM (polyacrylamide), then enter coagulative precipitation tank 5 and precipitate.After supernatant liquor water outlet enters mixing pond 6, be lifted into EGSB anaerobic reactor 7 with pump and carry out anaerobic biological treatment, after getting rid of most of organism, waste water gravity flow enters anaerobic precipitation pond 12 and precipitates, the backflow that reflux ratio is 200% was carried out in EGSB anaerobic reactor 7 water outlet before entering anaerobic precipitation pond 12, anaerobic precipitation pond 12 supernatant liquor gravity flow enters anaerobic hydrolysis pond 13, and then to be promoted by pump and enter DAT-IAT pond 14 and carry out final Aerobic biological process, farthest to remove the organic pollutant in waste water, standard water discharge is discharged.
The mud that DAT-IAT pond 14 produces carries out the backflow that reflux ratio is 200%, can better remove ammonia nitrogen.
The excess sludge in the mud of coagulative precipitation tank 5, the mud in anaerobic precipitation pond 12 and DAT-IAT pond 14 enters after sludge thickener 19 carries out gravity concentration, carries out processed by diaphragm filter press 18.All mud cakes and grid slag all do resource utilization harmlessness disposing according to the requirement of local environmental administration.
The biogas that EGSB anaerobic reactor 7 produces enters gas-holder 9 after water seal, and by spark arrester 10 after biogas generator 11 generates electricity, for the self-sufficiency of Sewage treatment systems.
Actual processing effect is in table 3.
Table 3 unit main polluted factors designing treatment effect table
The CODcr:42000mg/L of cleaning pulping waste water, BOD before the process of this project
5: 21000mg/L, SS:6300mg/L, NH3-N:80mg/L, after process, water outlet CODcr:369mg/L, CODcr clearance reaches 99.1%, water outlet BOD
5: 97mg/L, BOD5 clearance reaches 99.5%, and water outlet SS:227mg/L, SS clearance reaches 96.3%, water outlet NH
3-N:20mg/L, NH
3-N clearance reaches 75%, and efflux wastewater reaches and is better than the People's Republic of China (PRC) " sewage enters town sewer water quality standard " (CJ343-2010) B level emission standard.
This project can produce and collect biogas and be about 26000m after anaerobically fermenting
3, can generate electricity about 52000 degree every day through biogas generator 11, this part electricity is directly got back to sewage treatment plant and is used, and meets the subfam. Spiraeoideae of sewage treatment plant, greatly reduces the running cost of Sewage treatment systems, not only energy-conservation but also environmental protection.
Claims (5)
1. a cleaning pulping wastewater treatment equipment, it is characterized in that: wastewater equalization pond (1) and Microfilter (2), mixed reaction pond (4), coagulative precipitation tank (5), mix pond (6), EGSB anaerobic reactor (7), anaerobic precipitation pond (12), anaerobic hydrolysis pond (13), DAT-IAT pond (14) are connected successively with waste water drainage system (16), mixed reaction pond (4) is also connected with feeder (3); Coagulative precipitation tank (5), anaerobic precipitation pond (12) are all connected with sludge thickener (19) with DAT-IAT pond (14), and sludge thickener (19) is connected with mud cake innocuity disposal system (17) successively with diaphragm filter press (18); DAT-IAT pond (14) is also connected with air accumulator (15).
2. cleaning pulping wastewater treatment equipment according to claim 1, is characterized in that: the connection line between anaerobic precipitation pond (12) and EGSB anaerobic reactor (7) is connected with the top of EGSB anaerobic reactor (7).
3. cleaning pulping wastewater treatment equipment according to claim 1, is characterized in that: DAT-IAT pond (14) are also connected with anaerobic hydrolysis pond (13).
4. cleaning pulping wastewater treatment equipment according to claim 1, is characterized in that: EGSB anaerobic reactor (7) is also connected with biogas generator (11) successively with water-sealed tank (8), gas-holder (9), spark arrester (10).
5. cleaning pulping wastewater treatment equipment according to claim 4, is characterized in that: be provided with water-sealed tank (8) between gas-holder (9) and spark arrester (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520174822.1U CN204529609U (en) | 2015-03-26 | 2015-03-26 | Cleaning pulping wastewater treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520174822.1U CN204529609U (en) | 2015-03-26 | 2015-03-26 | Cleaning pulping wastewater treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204529609U true CN204529609U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520174822.1U Expired - Fee Related CN204529609U (en) | 2015-03-26 | 2015-03-26 | Cleaning pulping wastewater treatment equipment |
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| CN (1) | CN204529609U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017063305A1 (en) * | 2015-10-13 | 2017-04-20 | 新疆国力源投资有限公司 | Process for circulating and recycling white water in paper machine |
-
2015
- 2015-03-26 CN CN201520174822.1U patent/CN204529609U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017063305A1 (en) * | 2015-10-13 | 2017-04-20 | 新疆国力源投资有限公司 | Process for circulating and recycling white water in paper machine |
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| 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: 20150805 |
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| CF01 | Termination of patent right due to non-payment of annual fee |