CN106277559A - A kind of method using two-stage EGSB+A/O/OMBBR PROCESS FOR TREATMENT food yeast production middle and high concentration waste liquid - Google Patents
A kind of method using two-stage EGSB+A/O/OMBBR PROCESS FOR TREATMENT food yeast production middle and high concentration waste liquid Download PDFInfo
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- CN106277559A CN106277559A CN201510358506.4A CN201510358506A CN106277559A CN 106277559 A CN106277559 A CN 106277559A CN 201510358506 A CN201510358506 A CN 201510358506A CN 106277559 A CN106277559 A CN 106277559A
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Abstract
The invention belongs to high concentrated organic waste liquid processing technology field, it is directed to use with the two-stage EGSB+A/O/OMBBR group technology processing method as food Yeast Fermentation Process middle and high concentration fermented waste fluid, concretely comprise the following steps: after the high gravity fermentation waste liquid produced in food Yeast Fermentation Process is extracted from material liquid tank by (1), send in one-level EGSB reactor, under the effect of sulfate reducting bacteria, complete sulfate removal process, and remove partial organic substances；Again the water outlet of one-level EGSB is sent in two grades of EGSB reactors, complete organic removal；(2) aerobic unit (A/O/OMBBR) is sent in anaerobic unit water outlet.Aerobic unit each reactor HRT=1d, realizes the removal of ammonia nitrogen and total nitrogen through nitrification and denitrification effect.After one-level OMBBR, add ozone processing unit, remove fermented waste fluid colourity, and macromole hardly degraded organic substance is converted into small organic molecule, under reflux effect, enter the AMBBR carbon source as denitrification process.The present invention can realize the place to go of pollutant in yeast production waste liquid substantially, has that energy consumption is low, it is little, easy and simple to handle to take up an area, be prone to the advantages such as Automated condtrol simultaneously.
Description
One, technical field
The invention belongs to high concentration sulfate and organic wastewater processing technology field, relate to a kind of processing method using two-stage EGSB+ anoxia/aerobic/aerobic MBBR group technology (being called for short: two-stage EGSB+A/O/O-MBBR) to be used for food Yeast Fermentation Process middle and high concentration fermentation waste water.
Two, background technology
In recent years, Chinese food yeast production industry keeps higher growth momentum.Only 2011, yeast total output reached 270,000 tons, and annual rate of growth is about 12.5%.The high gravity fermentation waste liquid produced in Yeast Fermentation Process is mainly composed of the bacterial metabolism product such as yeast protein and vitamin, nutrient, trace element, there is the features such as high COD, high inorganic salt and high chroma, be the high concentrated organic wastewater that a kind of intractability is bigger.And in waste water, sulfate concentration is high, and organic matter removal process can be caused to be suppressed.
The common method being presently used for food Yeast Fermentation Process middle and high concentration Wastewater treating has flocculation one sedimentation method, absorption method, electrochemical process, advanced oxidation processes AOP, biochemical treatment process etc..But, these treatment technologies there is problems in that 1) sedimentation method of flocculating and the absorption method Organic substance that can not effectively remove in waste water, it is difficult to make effluent quality meet direct emission request；2) electrochemical process and advanced oxidation processes energy consumption are high, deficiency in economic performance；3) single UASB or EGSB reactor all can not well realize organic removal due to the existence of sulfate.
The present invention uses two-stage EGSB reactor, purpose is to remove sulfate separately to carry out with organic matter degradation process, in one-level EGSB reactor, complete high concentration sulfate major part remove, make the concentration of sulfate in the water outlet of one-level EGSB not interfere with organic removal in two grades of EGSB reactors.A/O/O-MBBR unit can be good at removing the ammonia nitrogen in anaerobic unit water outlet and total nitrogen simultaneously.This technique have device be simple and convenient to operate, low power consumption and other advantages.In this context, it is proposed that the technology of the present invention content.
Three, summary of the invention
The present invention proposes and a kind of uses two-stage EGSB+A/O/O-MBBR group technology containing high concentration sulfate and the processing method of organic matter fermentation waste water in food Yeast Fermentation Process.Can solve, because the existence of high concentration food culture propagation waste liquid middle and high concentration sulfate is for the suppression of organic matter degradation process, organic removal can be realized again, can also effectively remove the ammonia nitrogen in fermented waste fluid and total nitrogen simultaneously.The technical method of the bright proposition of we has that energy consumption is low, easy and simple to handle, be prone to the advantages such as Automated condtrol.
For realizing the purpose of the present invention, the invention provides following concrete operation method and step: after the high gravity fermentation waste liquid produced in food Yeast Fermentation Process is extracted from material liquid tank by (1), send into anaerobic treatment unit, completing the main removal of sulfate in one-level EGSB reactor, water outlet enters two grades of EGSB reactors and completes organic removal；(2) two grades of EGSB water outlets are continued to be fed into A/O/O-MBBR reactor, complete denitrification process at this element.And add ozone processing unit in the middle of two aerobic MBBR, to reduce effluent color dilution, and part macromole hardly degraded organic substance is converted into small organic molecule, is converted into the carbon source of denitrogenation unit.
In this technological invention, high gravity fermentation waste liquid anaerobic treatment unit uses EGSB reactor, sets heater outside reactor, keeps internal temperature to maintain mesophilic range (30 DEG C-35 DEG C), reactor arranges reflux, to ensure reactor main reaction region upflow velocity (vup≥1.5m/h).Reactor top arranges exhaust apparatus to discharge or to collect methane and the carbon dioxide of Anaerobe reaction generation.
In this technological invention, high gravity fermentation waste liquid anaerobic treatment unit mud uses granule sludge, and anaerobic unit must be activated, the domestication stage, and the stage improves entering organic matter of water and sulfate load, to prevent mud from cracking.
In this technological invention, high gravity fermentation waste liquid aerobic treatment unit uses MBBR reactor.A district adds agitating device, uses intermittent stirring mode, and mixing time is to stir 1 minute per hour.Meanwhile, A district reactor head is added a cover.O district arranges aerator, it is ensured that inside reactor dissolved oxygen is not less than 5mg/L.Ozone processing unit uses intermittent duty mode, and the time of operation is to run 1 minute per hour.
In this technological invention, high gravity fermentation waste liquid aerobic treatment unit inner stuffing packing ratio is 50%, and the biofilm stage uses activated sludge biofilm.The isolated operation of biofilm initial stage each MBBR, series operation again after realizing respective function.
Accompanying drawing explanation
Fig. 1 is this patent process chart.
Four, detailed description of the invention:
Embodiment one: the sulfate of the high gravity fermentation waste liquid that two-stage EGSB reactor process produces in food Yeast Fermentation Process and organic matter removal.Utilizing this method to process the fermented waste fluid of certain yeast production producer, its water quality leading indicator is as follows:
The water quality situation of certain yeast production producer fermented waste fluid of table 1
Use two-stage EGSB reactor.First, fermented waste fluid being used from material liquid tank pumped, sends in one-level EGSB reactor, inside reactor temperature 30-35 DEG C, HRT=1d, in water outlet, sulfate clearance reaches more than 90%.
The water outlet of one-level EGSB with being pumped in two grades of EGSB reactors, inside reactor temperature 30-35 DEG C, HRT=1d, water outlet exists almost without sulfate, COD clearance about 80%, ammonia nitrogen concentration is relatively intake rising, and water outlet ammonia nitrogen concentration is 380-420mg/L.
The method that embodiment two: A/O/OMBBR technique is removed as high concentration food yeast production waste liquid ammonia nitrogen and total nitrogen
Anaerobic unit effluent COD concentration is 900-1200mg/L, and anaerobic unit water outlet pumped sends into A/O/OMBBR unit.Each reactor residence time is 1d, and the temperature remains within the normal range for inside reactor temperature (25-30 DEG C).After one-level OMBBR reactor, add ozone processing unit, to remove fermented waste fluid colourity, macromole refractory organic is converted into small organic molecule simultaneously, is recycled to AMBBR through circulating device, provide carbon source for anti-nitration reaction.Ozone processes and uses intermittent duty, and control ozone dosage is 45-55mg/min, runs 1 minute per hour.In final outflow water, COD concentration is not higher than 300mg/L, and ammonia nitrogen concentration is not higher than 10mg/L.
Claims (8)
1. one kind uses two-stage EGSB+A/O/OMBBR group technology as food Yeast Fermentation Process middle and high concentration fermented waste fluid
Processing method, it is characterised in that utilize two-stage EGSB reactor desulfurization to be separated with organic matter removal process, one-level EGSB
Reactor is mainly responsible for the removal of sulfate, and two grades of EGSB reactors are responsible for organic degraded；Utilize A/O/OMBBR
Unit removes the ammonia nitrogen in anaerobic unit water outlet and total nitrogen.
2. the processing method of food Yeast Fermentation Process middle and high concentration fermented waste fluid as claimed in claim 1, mainly removes in waste water
Target concentration is as follows: COD 4700-5200mg/L；S04 2-930-1200mg/L；Anaerobic effluent unit NH4 +350-430
mg/L；Total nitrogen 390-450mg/L.
3. the processing method of food Yeast Fermentation Process middle and high concentration fermented waste fluid as claimed in claim 1, EGSB reactor should set
Having three segregation apparatuss, reactor bottom intake, and be provided with backflow, backflow should ensure that reactor main reaction region upflow velocity
Not less than 1.5m/h.Anaerobic unit mud uses granule sludge.Inside reactor temperature maintains middle temperature (30-35 DEG C).
4. the processing method of food Yeast Fermentation Process middle and high concentration fermented waste fluid as claimed in claim 1, anti-in one-level EGSB
Answering in device, through starting, taming the stage, being cultivated by sulfate reducting bacteria is one-level EGSB reactor dominant bacteria, thus
Realize the removal of sulfate.And two grades of EGSB reactors also to pass through startup, domestication stage.
5. the processing method of food Yeast Fermentation Process middle and high concentration fermented waste fluid as claimed in claim 1, A/O/OMBBR is mono-
Unit uses three identical reactors, and built-in filler, the temperature remains within the normal range for inside reactor temperature；Anoxic unit is (i.e.
AMBBR) use intermittent stirring and add a cover；Aerobic unit (i.e. OMBBR) sets in aerator, and guarantee reactor
Portion's dissolved oxygen is not less than 5mg/L.
6. the processing method of food Yeast Fermentation Process middle and high concentration fermented waste fluid as claimed in claim 1, A/O/OMBBR unit
Each reactor need to be through biofilm and domestication stage, series operation again after each reactor is all capable of respective function, series connection fortune
Set reflux after row, second OMBBR be back to AMBBR.
7. the processing method of food Yeast Fermentation Process middle and high concentration fermented waste fluid as claimed in claim 1, A/O/OMBBR unit
The biofilm stage of each reactor uses the activated sludge of sewage treatment plant to carry out biofilm.Filler adds ratio for 50%.The biofilm initial stage
Use static biofilm, show that face can change into after substantially observing biofilm development flowing to water continuously until filler.
8. the processing method of food Yeast Fermentation Process middle and high concentration fermented waste fluid as claimed in claim 1, at two OMBBR
Between add ozone advanced treatment unit, control ozone dosage and add in 48-52mg/min, ozone interval, dosing method is
Add 1min per hour.
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| CN201510358506.4A CN106277559A (en) | 2015-06-26 | 2015-06-26 | A kind of method using two-stage EGSB+A/O/OMBBR PROCESS FOR TREATMENT food yeast production middle and high concentration waste liquid |
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| CN201510358506.4A CN106277559A (en) | 2015-06-26 | 2015-06-26 | A kind of method using two-stage EGSB+A/O/OMBBR PROCESS FOR TREATMENT food yeast production middle and high concentration waste liquid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473509A (en) * | 2017-08-30 | 2017-12-15 | 南京大学 | It is a kind of to realize energy regenerating in sewage disposal process and improve the device of denitrification effect |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107997A (en) * | 2011-01-12 | 2011-06-29 | 北京林业大学 | Method for treating leachate of domestic waste incineration plants |
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2015
- 2015-06-26 CN CN201510358506.4A patent/CN106277559A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107997A (en) * | 2011-01-12 | 2011-06-29 | 北京林业大学 | Method for treating leachate of domestic waste incineration plants |
Non-Patent Citations (2)
| Title |
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| 李克勋等: "高浓度褐藻酸钠生产废水处理工程设计", 《城市环境与城市生态》 * |
| 王伟等: "EGSB反应器处理高浓硫酸盐废水", 《食品与生物技术学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473509A (en) * | 2017-08-30 | 2017-12-15 | 南京大学 | It is a kind of to realize energy regenerating in sewage disposal process and improve the device of denitrification effect |
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