CN201882975U - High-efficiency anaerobic treatment device applied in treatment of waste water produced in paper making with commercial pulp - Google Patents
High-efficiency anaerobic treatment device applied in treatment of waste water produced in paper making with commercial pulp Download PDFInfo
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- CN201882975U CN201882975U CN 201020655366 CN201020655366U CN201882975U CN 201882975 U CN201882975 U CN 201882975U CN 201020655366 CN201020655366 CN 201020655366 CN 201020655366 U CN201020655366 U CN 201020655366U CN 201882975 U CN201882975 U CN 201882975U
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/18—External loop; Means for reintroduction of fermented biomass or liquid percolate
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M45/00—Means for pre-treatment of biological substances
- C12M45/06—Means for pre-treatment of biological substances by chemical means or hydrolysis
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
- C12M47/12—Purification
Abstract
The utility model discloses a high-efficiency anaerobic treatment device applied in treatment of waste water produced in paper making with commercial pulp, which mainly comprises a hydrolysis and pre-acidification reactor, a feeding tank and a high-efficiency anaerobic reactor, the level of the feeding tank is lower than the level of the hydrolysis and pre-acidification reactor, and the feeding tank is connected with the high-efficiency anaerobic reactor at the rear end through a lifting pump and a flow meter. By adopting the device, the amount of sludge can be greatly reduced, the secondary pollution caused by the sludge to the environment can be decreased, the power consumption for operation can be greatly lowered, the gas bio-energy can be produced, huge economic benefits can be created, and the operating cost can be greatly reduced.
Description
Technical field
The utility model belongs to technical field of waste water processing, specifically relates to a kind of anaerobic processing device of handling the commercial pulp paper waste.
Background technology
Major ingredient in the commercial pulp paper waste is tiny suspension fiber, papermaking filler, waste paper impurity and a small amount of pectin, wax, carbohydrate, and all kinds of organic and mineral compound that adds in the paper process.More than the water-quality guideline COD:2000mg/L, SS:500-900mg/L.In the composition of COD, non-solubility COD is higher, accounts for more than 40%.And solvability COD is than difficult for biological degradation.The ratio of BOD/COD in the waste water generally is about 0.2～0.3, and biochemical is relatively poor, and the main applying biological method of most of BOD and solubility COD is removed.
At present general treatment technology is mainly coagulation air-float or coagulant sedimentation with aerobic biological treatment process combined: waste water is removed most of SS and non-solubility COD through coagulation air-float or precipitation earlier, then further remove COD and BOD with aerobic biological process for treating again, make COD and BOD reach discharging standards.Because the waste water COD index is more than 2000mg/L, if with wastewater treatment to discharging standards COD≤80mg/L, mainly be to guarantee that by adding a large amount of chemical agents and consuming a large amount of power one blast aerations sewage is up to standard, and the big processing cost of effluent quality instability, current consumption is high and produce a large amount of chemical sludges, dispose difficulty, easily cause " secondary pollution " of environment.
Because aerobic biological treatment process COD clearance is all kept about 80% basically, therefore a kind of alternative coagulation air-float of commercial pulp paper waste processing or the technology and device of the precipitator method of being suitable for only be provided, with the clearance, the energy efficient that improve system, reduce production costs, could waste water thoroughly be purified, realize the reliable standard emission of waste water, also can make enterprise realize Sustainable development simultaneously.
Efficient anaerobe reactor comparatively be widely used in high densitys such as food fermentation, beer beverage, starch monosodium glutamate, papermaking machine slurry and semi-chemical pulp can biochemistry Sewage treatment systems preferably, but the efficient anaerobe treatment unit is used for domestic not the appearing in the newspapers that the commercial pulp paper waste is handled.This device is mainly used in the front end pre-treatment, handles to replace traditional materialization dosing, reduces the load of follow-up aerobic treatment, energy efficient, the running cost that reduces.Its structure can be divided into into water water distribution system, anaerobe reaction zone, three-phase separation area and water outlet and sludge drainage system.Reactor is generally cylindric turriform, and characteristics are to have very big aspect ratio, generally can reach 2-5, and the height of production equipment reactor can reach more than the 15-25 rice.The expansion of granule sludge and interior external reflux have improved contacting between the organism and microorganism in the waste water, have strengthened mass transfer effect, have improved the biochemical reaction speed of reactor, thereby have improved the treatment efficiency of reactor greatly.The outstanding feature of this device is that energy requirement reduces greatly, also can produce bioenergy one CH4 biogas, does not need power consumption and every removal 1kgCOD can produce biogas 0.50m approximately
3More than, amount to generated energy 0.75kW.h.Because this technology energy consumption is low, can produce bioenergy, anti impulsion load, floor space is little, sludge yield is low, anaerobic sludge is sold and done kind of a mud profit advantages of higher, become one of the one preferred technique of " the preferential catalogue of energy-saving and water-saving specific equipment enterprise income tax (version in 2008) and the preferential catalogue of environment protection specific equipment enterprise income tax " of National Ministry of Finance, State Administration of Taxation, State Development and Reform Commission's issue.
Because this device has above advantage, China also in the research of carrying out aspect many anaerobism, has obtained some achievements in recent years.But anaerobic device is used in the good high concentrated organic wastewater processing of wastewater biodegradability more, does not still have the precedent that high-effect anaerobic treatment device is applied to handle commercial pulp papermaking low concentration wastewater.
Summary of the invention
At existing goods slurry paper waste adopt the materialization technology as pre-treatment cost height, remove inefficient deficiency, the purpose of this utility model provides the anaerobic processing device of a kind of high loading, high pollution thing clearance.
The technical solution of the utility model is as follows: a kind of high-effect anaerobic treatment device that is applied to the processing of commercial pulp paper waste, mainly comprise the pre-acidification reactor of hydrolysis, charging pond and high efficiency anaerobic reactor, the liquid level in described charging pond is lower than the liquid level of the pre-acidification reactor of hydrolysis, and described charging pond links to each other with the high efficiency anaerobic reactor of rear end by lifting water pump, under meter.
Be provided with pulse type reactor, pulse water distribution device and pre-acidifying mud discharging device in the pre-acidification reactor of described hydrolysis.
Described high efficiency anaerobic reactor inside is provided with water-distributing device, anaerobism mud discharging device, triphase separator and interior outer circulating tube, and top is provided with gas-liquid separator, and the outside is provided with external reflux pump, and described external reflux pump links to each other with high efficiency anaerobic reactor by pipeline.Described triphase separator is divided into upper and lower two portions.
The utility model adopts " the pre-acidifying+high efficiency anaerobic reactor of hydrolysis " technology generations for traditional " materialization " technology, " the pre-acidifying+high efficiency anaerobic reactor of hydrolysis " technology generations is for after " materialization " technology, the COD clearance is increased to 60-70% by 30-40%, reduce the load of follow-up aerobic workshop section greatly, reduce running cost.Commercial pulp paper waste High-efficient Anaerobic Technology, enter pre-acidifier through pretreated commercial pulp paper waste, utilize the hydrolysis anaerobion, the larger molecular organics of difficult degradation in the water is decomposed into the small organic molecule of easy degraded, realize the chain rupture of broken ring, remove a part of organic pollutant.Gravity flow subsequently enters the charging pond, regulate soda acid, and after adding adequate nutrition salt, carry out anaerobically fermenting with pump input high efficiency anaerobic reactor, biological action by the anaerobic grain sludge bed makes waste water produce acid and produce the methane process through hydrolysis, acidifying, product hydrogen, and final organic matter degradation also forms CH
4Bioenergy, the biogas of generation generates electricity after the water seal gas-water separation, and the anaerobism water outlet enters the aerobe treatment system and handles the back qualified discharge.
Compare with common employing " materialization " treatment technology (to handle commercial pulp waste water 10000m
3/ d, water outlet COD=80mg/L meter), excellent effect of the present utility model is:
1, pollutants removal rate improves greatly, and reduced the load of follow-up aerobic treatment workshop section: the COD clearance is increased to 60-70%, and pollutent is subdued greatly, and only the anaerobism one step COD of workshop section water outlet can be lower than 800mg/L, and COD is 1400mg/L after materialization is handled.Winter, a small amount of heating guaranteed wastewater temperature more than 25 ℃, and the COD clearance is more than 60%, domestic beyond example still.
2, sludge quantity reduces greatly, has alleviated mud to second environmental pollution: handle the back through this device and only produce 6 tons of sludge quantities every day, and adopt 21 tons of materialization processing sludge quantities, mud decrement is more than 70%.
3, the operation power consumption reduces greatly: total power consumption 9738kWh/d after this device is handled, and adopt physicochemical techniques to handle total power consumption 29598kWh/d, power consumption reduces by 67.1%.
4, produce the biogas bioenergy, creates huge economic benefit: produce biogas amount 6500m every day after the processing of this device
3, day generated energy 9750kWh after the generating of marsh gas power generation unit, year wound economic benefit is more than 2,320,000 yuan.
5, running cost reduces greatly: 1.77 yuan of/ton water of direct operation total cost after this device is handled, and adopt materialization to handle 3.89 yuan of ton water total costs, ton water is saved 2.12 yuan of operation total costs, adds up to 720.8 ten thousand yuan of year saving running costs.
Description of drawings
Fig. 1 is a kind of high-effect anaerobic treatment device structural representation of embodiment.
Fig. 2 is the structural representation of the pre-acidification reactor of hydrolysis of high-effect anaerobic treatment device.
Fig. 3 is the structural representation of the high efficiency anaerobic reactor of high-effect anaerobic treatment device.
Wherein, the pre-acidifying mud discharging device of the pre-acidification reactor 2-of 1-hydrolysis pulse type reactor 3-pulse water distribution device 4-5-charging pond 6-promotes outer circulating tube 11-anaerobism water-distributing device 12-anaerobism mud discharging device 13-gas-liquid separator 14-external reflux pump in the water pump 7-under meter 8-high efficiency anaerobic reactor 9-triphase separator 10-.
Embodiment
Specify the technical solution of the utility model below in conjunction with drawings and Examples.
Embodiment: a kind of high-effect anaerobic treatment device that is applied to the processing of commercial pulp paper waste, structure can be with reference to figure 1-3, it mainly comprises the pre-acidification reactor of hydrolysis, charging pond and high efficiency anaerobic reactor, the liquid level in described charging pond is lower than the liquid level of the pre-acidification reactor of hydrolysis, and described charging pond links to each other with the high efficiency anaerobic reactor of rear end by lifting water pump, under meter.Be provided with pulse type reactor, pulse water distribution device and pre-acidifying mud discharging device in the pre-acidification reactor of described hydrolysis.Described high efficiency anaerobic reactor inside is provided with water-distributing device, anaerobism mud discharging device, triphase separator and interior outer circulating tube, and top is provided with gas-liquid separator, and the outside is provided with external reflux pump, and described external reflux pump links to each other with high efficiency anaerobic reactor by pipeline.Described triphase separator is divided into upper and lower two portions.
Utilize said apparatus to carry out the process of commercial pulp paper waste anaerobic treatment, the steps include:
Waste water at first enters pre-acidification reactor by pulse type reactor after A, the pre-treatment, pre-acidificatoin time 6h; Pulse charged and discharged time ratio 1: 5, cycle 90s, and the water distributor percentage of open area is generally 1.0%～1.5%;
B, the waste water after acidication is handled enter the charging pond, regulate in the waste water ph 6.8-7.5 scope, add a small amount of nutritive salt (nitrogen, phosphorus, molysite etc.), hydraulic detention time 45min;
C, start charging pool inner water pump waste water is squeezed into high efficiency anaerobic reactor, the assurance system in temperature 25-33 ℃, the biological action by the anaerobic grain sludge bed makes waste water produce acid and product methane process through hydrolysis, acidifying, product hydrogen, with organic matter degradation and form CH
4Bioenergy, the biogas of generation generates electricity after the water seal gas-water separation; PH value 6.8-8 in the anaerobic reactor, sludge concentration 1015kgMLSS/m
3, granule sludge particle diameter 3-5mm, volumetric loading 10kgCOD/m
3More than the d; Improve flow velocity in the bed by inside and outside circulation simultaneously, make it be in the expansion fluidized state, flow velocity should guarantee at 3-5m/h, inside and outside internal circulating load 100-300%.
D, high efficiency anaerobic reactor water outlet enter the aerobic reaction pond and handle.
Described commercial pulp paper waste high-effect anaerobic treatment device, described structure structure material is the homemade conventional material in this area, and pond class structures are structure on the reinforced concrete; Tank body adopts the Q235A steel, and Resins, epoxy is strengthened anticorrosion, and inner part adopts modified plastics PP and UPVC etc., and the outer overlapping colours steel plate of rock wool heat-preservation is adopted in the outside.
The utility model is applied to the high-effect anaerobic treatment device that the commercial pulp paper waste is handled, and the gas of described generation is biogas, wherein CH
4Content 55-65%, CO
2Content 25-30%, other gas content 5-20%.It comprises pre-acidification reactor, charging pond, high efficiency anaerobic reactor.Wherein said pre-acidification reactor is provided with pulse type reactor, pulse water distribution device, mud discharging device; The charging pond is provided with the lifting water pump; High efficiency anaerobic reactor is provided with water-distributing device, mud discharging device, triphase separator, gas-liquid separator, water circulating pump.The biogas that produces through waste water after the anaerobic treatment can generate electricity after gas-liquid separator separates.
Claims (4)
1. one kind is applied to the high-effect anaerobic treatment device that the commercial pulp paper waste is handled, it is characterized in that, mainly comprise the pre-acidification reactor of hydrolysis, charging pond and high efficiency anaerobic reactor, the liquid level in described charging pond is lower than the liquid level of the pre-acidification reactor of hydrolysis, and described charging pond links to each other with the high efficiency anaerobic reactor of rear end by lifting water pump, under meter.
2. high-effect anaerobic treatment device according to claim 1 is characterized in that, is provided with pulse type reactor, pulse water distribution device and pre-acidifying mud discharging device in the pre-acidification reactor of described hydrolysis.
3. high-effect anaerobic treatment device according to claim 1, it is characterized in that, described high efficiency anaerobic reactor inside is provided with water-distributing device, anaerobism mud discharging device, triphase separator and interior outer circulating tube, top is provided with gas-liquid separator, the outside is provided with external reflux pump, and described external reflux pump links to each other with high efficiency anaerobic reactor by pipeline.
4. high-effect anaerobic treatment device according to claim 3 is characterized in that described triphase separator is divided into upper and lower two portions.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020655366 CN201882975U (en) | 2010-12-13 | 2010-12-13 | High-efficiency anaerobic treatment device applied in treatment of waste water produced in paper making with commercial pulp |
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| CN 201020655366 CN201882975U (en) | 2010-12-13 | 2010-12-13 | High-efficiency anaerobic treatment device applied in treatment of waste water produced in paper making with commercial pulp |
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| CN 201020655366 Expired - Fee Related CN201882975U (en) | 2010-12-13 | 2010-12-13 | High-efficiency anaerobic treatment device applied in treatment of waste water produced in paper making with commercial pulp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103351058A (en) * | 2013-06-18 | 2013-10-16 | 浙江逸盛石化有限公司 | Pre-acidification anaerobic UASB treatment device and method for sewage |
| CN110482781A (en) * | 2019-08-01 | 2019-11-22 | 广西大学 | A method of high calcium paper-making industrial waste water is handled using whey pre-sour to promote anaerobic reaction and inhibit calcification |
-
2010
- 2010-12-13 CN CN 201020655366 patent/CN201882975U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103351058A (en) * | 2013-06-18 | 2013-10-16 | 浙江逸盛石化有限公司 | Pre-acidification anaerobic UASB treatment device and method for sewage |
| CN110482781A (en) * | 2019-08-01 | 2019-11-22 | 广西大学 | A method of high calcium paper-making industrial waste water is handled using whey pre-sour to promote anaerobic reaction and inhibit calcification |
| CN110482781B (en) * | 2019-08-01 | 2021-12-10 | 广西大学 | Method for promoting anaerobic reaction and inhibiting calcification by treating high-calcium paper-making industrial wastewater with whey pre-acid |
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Granted publication date: 20110629 Termination date: 20141213 |
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| EXPY | Termination of patent right or utility model |