CN209456255U - Molasses alcohol waste water processing equipment for recycling - Google Patents
Molasses alcohol waste water processing equipment for recycling Download PDFInfo
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- CN209456255U CN209456255U CN201920040708.8U CN201920040708U CN209456255U CN 209456255 U CN209456255 U CN 209456255U CN 201920040708 U CN201920040708 U CN 201920040708U CN 209456255 U CN209456255 U CN 209456255U
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- waste water
- molasses alcohol
- alcohol waste
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Fertilizers (AREA)
Abstract
The utility model discloses a kind of molasses alcohol waste water processing equipment for recycling, it mainly includes primary sedimentation tank, spiral heat exchanger, conditioning tank, intermediate temperature anaerobic fermentation tank, settling tank and secondary settling tank, the apparatus structure is simple, starting does not need heat source and is heated, operating cost is low not to will increase wastewater treatment capacity also, in quick processing wastewater while organic species, produces methane gas and liquid biological organic fertilizer, realize the resource utilization of molasses alcohol waste water, and good operation stability.
Description
Technical field
The embodiments of the present invention are related to liquid waste treating apparatus, in particular to a kind of molasses alcohol water resource
Change processing unit.
Background technique
Molasses alcohol waste water (useless mash) is using the liquid waste being discharged after sugar refinery byproduct alcohol produced from molasses, generally
12m can be generated by producing 1 ton of alcohol3Waste water.Waste component is extremely complex, BOD5Content with COD is respectively up to 40000-
50000mg/L and 100000-120000mg/L, and it is rich in caramel colorant, sulfate ion and a variety of organic acids, therefore
With coloration height, pH value is low, the characteristics such as organic concentration height.According to statistics, the waste water that alcohol industry discharges every year is up to 5 × 107m3,
It is second largest light industry of China's concentration of pollution discharge highest, displacement.The key of molasses alcohol water process is effectively to drop
Solve organic matter, removal SO4 2-, improve waste water biodegradability energy, reduce operating cost and obtain have economic benefit by-product
Object, currently used processing method have following three categories: concentration method, biological treatment+materializing strategy method up to standard, resource utilization method
(directly doing liquid fertilizer).
Compared with other processing methods, anaerobic bio-treated method has the characteristics that safe and efficient, low operating cost, highly concentrated
Degree organic wastewater with difficult degradation thereby Anaerobic Methods in Treating refers in the case where free-dioxygen participates in, and is made by the collaboration of multiple-microorganism
With macromolecular hardly degraded organic substance is finally decomposed to small organic molecule, improves biodegradability energy, and effectively remove SO4 2-,
Obtain methane as clean energy source (CH4) technique, biogas slurry carry out again aerobic aeration processing be converted into liquid biological organic fertilizer, can reuse
In sugarcane field.Existing Anaerobic Methods in Treating is mainly mesophilic digestion technique, and high concentrated organic wastewater reaches 35-38 DEG C through cooling
After be directly entered intermediate temperature anaerobic fermentation tank, three phase separation is passed through in water outlet, and biogas is collected to methane purifying system by recyclable device,
There are in reactor tank, maintain higher sludge loading for sludge.
In order to improve organic removal rate and biogas yield, people constantly improve equipment and process flow, constantly
The control condition for groping anaerobic technology, to the temperature of anaerobic reactor, pH and basicity, oxidation-reduction potential, toxic and inhibition
Substance, organic loading, loads of nutrition, nutritive proportion and microelement etc. are studied.From up-flow anaerobic sludge blanket
(UASB) since, anaerobic fermentation technology level is being continuously available always promotion, is intensively developing new third in the world in recent years
For anaerobic technology, such as anaerobic expanded granular sludge bed (EGSB) technology.But high concentrated organic waste liquid especially molasses alcohol waste water
Be effectively treated that be recognized always be difficult point, the reason is that the design of UASB is mainly for low concentration organic liquid waste, for this purpose, various
The layers such as the improved technique and device of UASB technique, such as AF+UASB, UACT, ABR anaerobic organism reaction system technology go out not
Thoroughly, but all generally existing following problem: first is that due to molasses-spirit seasonality production (production period be May next year in November -), often
Secondary starting requires heat source and is heated, and traditional heating mode mainly uses steam to heat, and energy consumption is big, and operating cost is high, and
Wastewater treatment capacity is increased using hot water mixing method, while heating effect is bad；Second is that most of is all using chemical agent (liquid
Alkali, calcium hydroxide) adjust water inlet pH value, it is at high cost；Third is that especially containing since molasses alcohol waste water contains more organic acid
There is high sulfate radical, is difficult domestication, screening dominant bacteria, lower so as to cause organic matter removal efficiency and biogas yield, system is held
It is easily rancid, it is difficult stable operation.
Utility model content
The purpose of this utility model is that in view of the above-mentioned drawbacks in the prior art, providing a kind of pair of molasses alcohol hydromining
With recycling treatment, resource utilization can be improved, while can be also effectively reduced at the molasses alcohol recycling of water resource of operating cost
Manage device.
The utility model provides a kind of molasses alcohol waste water processing equipment for recycling, including the heat exchange of primary sedimentation tank, spiral plate type
Device, conditioning tank, intermediate temperature anaerobic fermentation tank, settling tank and secondary settling tank, wherein primary sedimentation tank is for storing molasses alcohol waste water and providing
Precipitation process；Spiral heat exchanger is connected to primary sedimentation tank, for cooling down molasses alcohol waste water；Conditioning tank and spiral plate type exchange heat
Device connection, for mixing molasses alcohol waste water and anaerobic effluent；Intermediate temperature anaerobic fermentation tank is connected to conditioning tank, for providing medium temperature
Anaerobic reaction, and export anaerobic effluent and biogas；Settling tank is connected to intermediate temperature anaerobic fermentation tank, anti-for providing sludge settling
It answers；Secondary settling tank is connected to settling tank, for providing precipitation process.
Further, the heat source input terminal of spiral heat exchanger is connected to the primary sedimentation tank, cold source input terminal with it is described
The connection of intermediate temperature anaerobic fermentation tank.
Further, it is provided with multistage vortex reaction zone in intermediate temperature anaerobic fermentation tank, and is intake using pulsed.
Further, molasses alcohol waste water processing equipment for recycling further includes the exhaust fan, desulfurizing tower, gas-liquid being sequentially communicated
Separator and water sealed tank, wherein exhaust fan is also connected to intermediate temperature anaerobic fermentation tank, for drawing biogas.
Further, molasses alcohol waste water processing equipment for recycling further includes liquid fertilizer workshop, the liquid fertilizer workshop and secondary settling tank
Connection, for providing aerobic aeration reaction treatment.
The utility model molasses alcohol waste water processing equipment for recycling structure is simple, and starting does not need heat source and heated,
Operating cost is low not to will increase wastewater treatment capacity also, in quick processing wastewater while organic species, produces methane gas
And liquid biological organic fertilizer, realize the resource utilization of molasses alcohol waste water, and good operation stability.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, embodiment or the relevant technologies will be retouched below
Attached drawing needed in stating is briefly described, it should be apparent that, it is practical new that the accompanying drawings in the following description merely relates to this
Some embodiments of type, are not limitation of the utility model.
Fig. 1 is the structural block diagram of molasses alcohol waste water processing equipment for recycling.
Fig. 2 is the process flow chart of molasses alcohol waste water recycling processing method.
Appended drawing reference: 1- primary sedimentation tank；2- spiral heat exchanger；3- conditioning tank；4-- intake pump；5- reflux pump；6- medium temperature
Anaerobic fermentation tank；7- settling tank；8- secondary settling tank；9- liquid fertilizer workshop；10- exhaust fan；11- desulfurizing tower；12- gas-liquid separator；
13- water sealed tank.
Specific embodiment
In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have
Body embodiment makees further unrestricted detailed description to technical solutions of the utility model.
See that Fig. 1, molasses alcohol waste water processing equipment for recycling specifically include that primary sedimentation tank 1, spiral heat exchanger 2, adjust
Pond 3, intermediate temperature anaerobic fermentation tank 6, settling tank 7 and secondary settling tank 8.
Primary sedimentation tank 1 is for storing molasses alcohol waste water and providing precipitation process.
The heat source input terminal of spiral heat exchanger 2 is connected to primary sedimentation tank 1, receives molasses alcohol waste water, and provide it
Cooling treatment.
The output with the output end of spiral heat exchanger 2 and intermediate temperature anaerobic fermentation tank 6 respectively of the input terminal of conditioning tank 3
End connection receives molasses alcohol waste water and anaerobic effluent, and carries out mixed processing to two kinds of liquid.
The input terminal of intermediate temperature anaerobic fermentation tank 6 is connected to by intake pump 4 with conditioning tank 3, and the mixed liquor of conditioning tank 3 is absorbed,
And anaeration in normal temperature reaction treatment is provided to mixed liquor, generate anaerobic effluent.The output end of intermediate temperature anaerobic fermentation tank 6 passes through reflux pump
5 to 3 output par, c anaerobic effluent of conditioning tank, while also to 7 output par, c anaerobic effluent of settling tank.Intermediate temperature anaerobic fermentation tank 6 is also
It is connected to the cold source input terminal of spiral heat exchanger 2, the mixed liquor in intermediate temperature anaerobic fermentation tank 6 can be exchanged heat by spiral plate type
Device 2 absorbs the heat of molasses alcohol waste water, reaches mesophilic digestion condition (35-38 DEG C).Setting in intermediate temperature anaerobic fermentation tank 6
Multistage is vortexed reaction zone, pulsed water inlet, and mixing liquid is all under turbulent state in tank, and post-processing section forms laminar flow again
Area can increase waste water and sludge contact area and time.
7 input terminal of settling tank is connected to intermediate temperature anaerobic fermentation tank 6, receives the anaerobic effluent that intermediate temperature anaerobic fermentation tank 6 is sent,
And sludge settling reaction is provided, the sludge for reacting generation sends intermediate temperature anaerobic fermentation tank 6 back to again, and supernatant is exported to secondary settling tank 8.
Secondary settling tank 8 receives the supernatant sent of settling tank 7, and provides precipitation process, during the sludge to precipitate is sent back to again
Warm anaerobic fermentation tank 6, supernatant are then sent to liquid fertilizer workshop 9, liquid fertilizer workshop 9 carry out aerobic aeration reaction treatment, will also not by
Decomposing protein is converted to amino acid, and macromolecule is converted to small molecule, organic matter transformation at humic acid, formed rich in amino acid,
Organic matter, humic acid and the Liquid organic fertilizer of probiotics, Liquid organic fertilizer can carry out fertilising use to sugarcane field.
Since intermediate temperature anaerobic fermentation tank 6 also generates biogas, the molasses alcohol waste water of the present embodiment in anaerobic reaction
Processing equipment for recycling further includes exhaust fan 10, desulfurizing tower 11, gas-liquid separator 12 and water sealed tank 13.Intermediate temperature anaerobic fermentation tank 6
Isolated biogas, which collects, is evacuated to desulfurizing tower 11 by exhaust fan 10, after desulfurizing tower 11 and gas-liquid separator 12 purify, then
Enterprise's boiler combustion is conveyed by water sealed tank 13 to use, and can reduce enterprise's fuel use cost.
See that Fig. 2, the molasses alcohol waste water recycling processing method of the present embodiment include the following steps:
1) it just precipitates: molasses alcohol waste water being placed in primary sedimentation tank 1 and carries out precipitation process, remove bulk solid matters, than
Such as: poor slag, yeast paste.
2) cool down: molasses alcohol waste water after pretreatment is delivered to spiral heat exchanger 2, carries out cooling treatment.Spiral shell
The heat source of plate turning type heat exchanger 2 is that temperature is 85-90 DEG C of molasses alcohol waste water, and cold source is that temperature is 25-28 DEG C of anaeration in normal temperature hair
Mixed liquor in fermentation tank 6 reaches mesophilic digestion condition using former waste liquid heat itself to carry out heating to waste liquid in anaerobic system,
Realize energy conservation object.
3) mix: the molasses alcohol waste water after cooling treatment is sent to conditioning tank 3, and with 6 anaerobism of intermediate temperature anaerobic fermentation tank
The anaerobic effluent mixing generated after reaction, carries out T, pH, COD, VFA, SO4 2-Equal water quality parameters and runoff investigation.In conditioning tank 3
The pH value of molasses alcohol waste water is 3.8-4, and the pH value of anaerobic effluent is 7.8-8.0, and the pH value of molasses alcohol waste water, which is adjusted, to be relied on
It is neutralized naturally with anaerobic effluent, making up to pH value is 7.2 or more, meets the water inlet requirement of intermediate temperature anaerobic fermentation tank 6, due to pH
Addition chemical agent is not needed in adjustment process, therefore can reduce operating cost.
4) Anaerobic Treatment: the mixed liquor in conditioning tank 3 enters intermediate temperature anaerobic fermentation tank 6, and it is anti-that anaeration in normal temperature is carried out in tank
It should handle, reaction temperature is 35-38 DEG C.The reflux ratio of the intermediate temperature anaerobic fermentation in-tank mixing liquid (anaerobic effluent) is 200%-
250%, COD volumetric loading are respectively 4.5-6kg COD/m3.d。
5) sludge settling: anaeration in normal temperature treated waste liquid carries out sludge settling, precipitate dirt from settling tank 7 is flow to
Mud is back to intermediate temperature anaerobic fermentation tank 6 and carries out circular treatment, and supernatant is sent to secondary settling tank 8.7 return sludge ratio of settling tank is
50%-100%.
6) secondary precipitation: secondary settling tank 8 carries out secondary precipitation to waste liquid and natural cooling cools down, and sludge reflux is into after precipitating
Warm anaerobic fermentation tank 6 carries out circular treatment, and supernatant send to liquid fertilizer workshop and carries out aerobic aeration processing, completes Liquid organic fertilizer system
Make.The return sludge ratio of secondary settling tank 8 is 50%-100%.
7) marsh gas purifying: fuel utilization is done after the isolated biogas of intermediate temperature anaerobic fermentation tank is by purification.
The molasses alcohol waste water recycling processing method operating cost of the utility model is low, degradation effect of organic compound is high, biogas
Generation rate is high.The molasses alcohol waste water recycling processing method starting of the utility model does not need heat source and is heated, and utilizes sugar
The heat of sweet alcohol waste water itself is heated, and operating cost is low not to will increase wastewater treatment capacity also, and heating effect is good；This work
Skill neutralize using the anaerobic effluent that pH is 7.8-8.0 and be adjusted containing more organic acid molasses alcohol waste liquid, does not need to add
Chemical agent substantially reduces operating cost.T, pH, COD, VFA, SO are carried out to molasses alcohol waste liquid4 2-Equal water quality parameters are adjusted,
Improve degradation effect of organic compound and biogas yield.
It should be pointed out that above-mentioned preferred embodiment is only to illustrate the technical ideas and features of the present invention, purpose
It is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly, this reality can not be limited with this
With novel protection scope.All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover in this reality
Within novel protection scope.
Claims (5)
1. a kind of molasses alcohol waste water processing equipment for recycling characterized by comprising primary sedimentation tank, spiral heat exchanger, tune
Save pond, intermediate temperature anaerobic fermentation tank, settling tank and secondary settling tank, wherein
Primary sedimentation tank is for storing molasses alcohol waste water and providing precipitation process；
Spiral heat exchanger is connected to primary sedimentation tank, for cooling down molasses alcohol waste water；
Conditioning tank is connected to spiral heat exchanger, for mixing molasses alcohol waste water and anaerobic effluent；
Intermediate temperature anaerobic fermentation tank is connected to conditioning tank, for providing anaeration in normal temperature reaction, and exports anaerobic effluent and biogas；
Settling tank is connected to intermediate temperature anaerobic fermentation tank, for providing sludge settling reaction；
Secondary settling tank is connected to settling tank, for providing precipitation process.
2. molasses alcohol waste water processing equipment for recycling according to claim 1, it is characterised in that: the spiral plate type changes
The heat source input terminal of hot device is connected to the primary sedimentation tank, and cold source input terminal is connected to the intermediate temperature anaerobic fermentation tank.
3. molasses alcohol waste water processing equipment for recycling according to claim 1, it is characterised in that: the anaeration in normal temperature hair
It is provided with multistage vortex reaction zone in fermentation tank, and is intake using pulsed.
4. molasses alcohol waste water processing equipment for recycling according to claim 1, it is characterised in that: further include being sequentially communicated
Exhaust fan, desulfurizing tower, gas-liquid separator and water sealed tank, wherein exhaust fan is also connected to intermediate temperature anaerobic fermentation tank, for drawing
Biogas.
5. molasses alcohol waste water processing equipment for recycling according to claim 1, it is characterised in that: further include liquid fertilizer vehicle
Between, which is connected to secondary settling tank, for providing aerobic aeration reaction treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920040708.8U CN209456255U (en) | 2019-01-10 | 2019-01-10 | Molasses alcohol waste water processing equipment for recycling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920040708.8U CN209456255U (en) | 2019-01-10 | 2019-01-10 | Molasses alcohol waste water processing equipment for recycling |
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| CN209456255U true CN209456255U (en) | 2019-10-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109704512A (en) * | 2019-01-10 | 2019-05-03 | 南宁职业技术学院 | Molasses alcohol waste water recycling processing method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109704512A (en) * | 2019-01-10 | 2019-05-03 | 南宁职业技术学院 | Molasses alcohol waste water recycling processing method and device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221227 Address after: 530000 Room 4210, Floor 42, Building E5, Wandamao, Nanning, No. 6, Liangdi Road, Yongning District, Nanning City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Suyuan Environmental Protection Engineering Co.,Ltd. Address before: No. 169, Daxue West Road, XiXiangTang District, Nanning City, Guangxi Zhuang Autonomous Region Patentee before: NANNING College FOR VOCATIONAL TECHNOLOGY |
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| TR01 | Transfer of patent right |