CN110054288A - A method of using fruit juice waste liquid as sewage treatment plant's supplementary carbon source enhanced biological nitrogen removal - Google Patents
A method of using fruit juice waste liquid as sewage treatment plant's supplementary carbon source enhanced biological nitrogen removal Download PDFInfo
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- CN110054288A CN110054288A CN201910427120.2A CN201910427120A CN110054288A CN 110054288 A CN110054288 A CN 110054288A CN 201910427120 A CN201910427120 A CN 201910427120A CN 110054288 A CN110054288 A CN 110054288A
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- waste liquid
- fruit juice
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
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- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
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- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
A method of using fruit juice waste liquid as sewage treatment plant's supplementary carbon source enhanced biological nitrogen removal, by fruit juice waste liquid through hydrolysis acidification pool or tank pretreatment after be added to sewage biological treatment system anoxic zone/pond in as supplement biological denitrificaion needed for carbon source.The present invention has the advantage that being with good effect: 1, can enhanced biological processing system denitrification effect.2, using fruit juice waste liquid as sewage treatment plant's supplementary carbon source, additional commodity carbon source dosage and cost can be reduced.3, economic cost, the achievable treatment of wastes with processes of wastes against one another that fruit juice waste liquid is individually handled can be reduced, there is good environmental benefit and economic benefit.
Description
Technical field
The invention belongs to sewage treatment fields, and in particular to a kind of strong using fruit juice waste liquid as sewage treatment plant's supplementary carbon source
Change the method for biological denitrificaion.
Background technique
It is shown according to the data for living to build portion's " national urban wastewater treatment information system ", the carbon-nitrogen ratio of wastewater treatment in China factory
(C/N) relatively low, the water-inlet carbon source of most sewage treatment plants is not able to satisfy needed for biological carbon and phosphorous removal, and carbon resource shortage problem is
An important factor for as sewage treatment plant's biological denitrificaion efficiency is restricted.Domestic sewage treatment plant generallys use the commodity carbons such as sodium acetate
Source is as supplementary carbon source, for improving the denitrification effect of sewage treatment biosystem.In recent years, it is required with quality of water environment
It improves, wastewater treatment in China discharge standard further increases, and local towns sewage discharge mark is put into effect on the ground such as Beijing, Tianjin in succession
It is quasi-, it is desirable that water outlet TN is lower than 10mg/L, and the contradiction that carbon source is insufficient, additional commodity carbon source is at high cost is more prominent, finds warp thus
The suitable carbon source of Ji becomes the hot spot paid close attention at present.
Fruit juice waste liquid derives from discarded or expired fruit juice, or from fruit crushing, squeezing etc. during juice production
Process and equipment such as rinse at a kind of waste liquid of high organic concentration of generations, have high organic content, good biodegradability,
The features such as nitrogen and phosphorus content is low, non-toxic can be used as sewage treatment plant's supplementary carbon source, improve biosystem nitric efficiency.But it is this
The organic matter of fruit juice waste liquid is the larger molecular organics such as carbohydrate mostly, and content of organics fluctuates greatly, sometimes with pulp and fruit
Slag is not easy to be utilized by microorganism fast degradation.
Summary of the invention
It is taken off the object of the invention is that providing one kind using fruit juice waste liquid as sewage treatment plant's supplementary carbon source enhanced biological
The method of nitrogen, this method can be improved biosystem denitrification effect, realize waste treatment and waste, and reduce additional carbon cost.
As above design, the technical scheme is that one kind is strengthened using fruit juice waste liquid as sewage treatment plant's supplementary carbon source
The method of biological denitrificaion, it is characterised in that: be added to fruit juice waste liquid at saprobia after hydrolysis acidification pool or tank pretreatment
As carbon source needed for supplement biological denitrificaion in anoxic zone/pond of reason system.
The hydraulic detention time of the hydrolysis acidification pool or tank controls between 3.5~5.0h.
The fruit juice waste liquid is added directly in anoxic zone/pond of sewage biological treatment system.
It is provided in the hydrolysis acidification pool or tank and mixes slowly mixing apparatus.
The hydrolysis acidification pool or tank is equipped with the import of fruit juice waste liquid, exports and surmount pipe.
The present invention has the advantage that and good effect:
1, the present invention has the characteristics that good biodegradability, nitrogen and phosphorus content are low using the fruit juice waste liquid of high organic concentration,
Easily biological-degradable content of organics in fruit juice waste liquid is further increased after it is pre-processed by 3.5~5.0hr hydrolysis acidification, so
It is added in anoxic zone/pond of sewage biological treatment system afterwards as supplementary carbon source, enhanced biological processing system denitrification effect.
2, the present invention is using fruit juice waste liquid as sewage treatment plant's supplementary carbon source, can reduce additional commodity carbon source dosage with
Cost.
3, the present invention can reduce economic cost, the achievable treatment of wastes with processes of wastes against one another that fruit juice waste liquid is individually handled, and have good ring
Border benefit and economic benefit.
Detailed description of the invention
Fig. 1 is pretreatment front and back fruit juice waste liquid easily biodegradable organics (VFA) containing spirogram.
Specific embodiment
A method of using fruit juice waste liquid as sewage treatment plant's supplementary carbon source enhanced biological nitrogen removal, by fruit juice waste liquid through water
It is added in anoxic zone/pond of sewage biological treatment system after solution acidification pool or tank pretreatment as carbon needed for supplement biological denitrificaion
Source.The hydraulic detention time of the hydrolysis acidification pool or tank controls between 3.5~5.0h.The fruit juice waste liquid is from discarded
Or expired fruit juice, or during juice production the generations such as fruit crushes, processes and the equipment such as squeezing are rinsed it is useless
Liquid, waste liquid organic concentration is high, with or without pulp, pomace.It is provided in the hydrolysis acidification pool or tank and mixes slowly mixing
Equipment, and be equipped with the import of fruit juice waste liquid, export and surmount pipe.
Embodiment 1: fruit juice waste liquid organic concentration is high and contains a large amount of pulp or pomace, runs in the following manner；Fruit
Juice waste liquid enters hydrolysis acidification pool or tank, stops 4.5~5.0h in hydrolysis acidification pool or tank, adds after hydrolysis acidification processing into dirt
As carbon source needed for supplement biological denitrificaion in anoxic zone/pond of aquatic organism processing system.
Embodiment 2: fruit juice waste liquid organic concentration is high, contains a small amount of pulp, pomace, runs in the following manner；Fruit juice is useless
Liquid enters hydrolysis acidification pool or tank, stops 4.0~4.5h in hydrolysis acidification pool or tank, adds after hydrolysis acidification processing raw into sewage
As carbon source needed for supplement biological denitrificaion in anoxic zone/pond of object processing system.
Embodiment 3: fruit juice waste liquid organic concentration is higher, contains a small amount of pulp, pomace, runs in the following manner；Fruit juice
Waste liquid enters hydrolysis acidification pool or tank, stops 3.5~4.0h in hydrolysis acidification pool or tank, adds after hydrolysis acidification processing into sewage
As carbon source needed for supplement biological denitrificaion in anoxic zone/pond of biological treatment system.
Embodiment 4: fruit juice waste liquid organic concentration is higher, is free of pulp, pomace, runs in the following manner；Fruit juice is useless
Liquid surmounts hydrolysis acidification pool or tank, is added directly in anoxic zone/pond of sewage biological treatment system as supplement biological denitrificaion
Required carbon source.
Experimental example 1
Using fruit juice waste liquid source Mr. Yu's juice production enterprise of the invention, fruit juice waste liquid water quality indicator is shown in Table 1, organic
Object content is higher, and good biodegradability, average B/C reach 0.46 and contain a certain amount of pulp and pomace.
| Index | Numerical value |
| CODcr(mg/L) | 6220-24680 |
| BOD5(mg/L) | 430-7820 |
| TN(mg/L) | 37.25-49.38 |
| TP(mg/L) | 3.40-4.0 |
Table 1
Acidification is hydrolyzed to fruit juice waste liquid, the hydrolization and acidification tank mixed slowly using band, when controlling hydrolysis acidification
Between 4-5hr, after hydrolysis acidification, easily biological-degradable organic matter (VFA) content increase rate averagely reaches in fruit juice waste liquid
120%, as shown in Figure 1.
Experimental example 2
Using fruit juice waste liquid pretreatment supplement biological denitrificaion carbon source of the invention, A is improved2/ O pilot system, intakes as certain
The water outlet of industrial park centralized wastewater treatment factory setting pot, adds strong through the pretreated fruit juice waste liquid of hydrolysis acidification in experimental example 1
Change biological denitrificaion, fruit juice waste liquid is added to pilot system anoxic zone, and fruit juice waste liquid dosage is 3-5L/m3Water.
Whether there is or not add the water outlet of the pilot system after fruit juice waste liquid hydrolysis acidification nitrogen effect situation to be shown in Table 2.
Table 2
Experimental example 3
Certain industrial park centralized wastewater treatment factory, biological unit use HYBAS technique, and water outlet executes Tianjin, and " cities and towns are dirty
Water treatment plant's pollutant emission standard " (DB12/599-2015) A standard.Sewage treatment plant inflow carbon source lacks, using liquid second
Sour sodium is as supplementary carbon source.A series of biologic unit is selected, is added directly the fruit juice waste liquid in experimental example 1 in biological unit
Anoxic pond, biological unit inflow are ten thousand m of 1.2-1.33/ d, fruit juice dosage are average daily 24m3/d。
Compared with the biological unit for not adding fruit juice waste liquid, adding unit water outlet total nitrogen reduces 2-3mg/L, can reduce acetic acid
06-0.9 ton/days of sodium dosage, in ten thousand yuan of year save the cost 24-36, Contrast on effect is shown in Table 3
| Project | Water inlet | Add the water outlet of fruit juice waste unit | The water outlet of fruit juice waste unit is not added |
| TN(mg/L) | 23.50-38.95 | 8.08-10.06 | 9.73-12.36 |
| NH3-N(mg/L) | 12.85-26.75 | 0.12-1.65 | 0.14-1.66 |
| NO3-N(mg/L) | 0.80-4.84 | 4.20-7.10 | 6.01-9.00 |
Table 3
Remarks: two bioseries liquid acetic acid sodium dosages are identical.
Above embodiment is not restricted embodiment of the invention, and all those skilled in the art are of the invention
The modification carried out on the basis of substantive content or equivalent deformation, in technology scope of the invention.
Claims (5)
1. a kind of using fruit juice waste liquid as the method for sewage treatment plant's supplementary carbon source enhanced biological nitrogen removal, it is characterised in that: by fruit
As supplement biology in anoxic zone/pond that juice waste liquid is added to sewage biological treatment system after hydrolysis acidification pool or tank pretreatment
Carbon source needed for denitrogenation.
2. according to claim 1 a kind of using fruit juice waste liquid as the side of sewage treatment plant's supplementary carbon source enhanced biological nitrogen removal
Method, it is characterised in that: the hydraulic detention time of the hydrolysis acidification pool or tank controls between 3.5~5.0h.
3. according to claim 1 a kind of using fruit juice waste liquid as the side of sewage treatment plant's supplementary carbon source enhanced biological nitrogen removal
Method, it is characterised in that: the fruit juice waste liquid is added directly in anoxic zone/pond of sewage biological treatment system.
4. according to claim 1 a kind of using fruit juice waste liquid as the side of sewage treatment plant's supplementary carbon source enhanced biological nitrogen removal
Method, it is characterised in that: be provided in the hydrolysis acidification pool or tank and mix slowly mixing apparatus.
5. according to claim 1 a kind of using fruit juice waste liquid as the side of sewage treatment plant's supplementary carbon source enhanced biological nitrogen removal
Method, it is characterised in that: the hydrolysis acidification pool or tank is equipped with the import of fruit juice waste liquid, exports and surmount pipe.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111762870A (en) * | 2020-07-09 | 2020-10-13 | 上海市城市建设设计研究总院（集团）有限公司 | Hydrolytic acidification and biological reaction combined treatment tank with surpassing function |
| CN112110609A (en) * | 2020-09-21 | 2020-12-22 | 杨洋 | Carbon source supplementing process for sewage treatment based on bean product industrial wastewater |
| CN113307450A (en) * | 2021-05-27 | 2021-08-27 | 公安县佳源水务有限公司 | Diversion system in sewage treatment system |
| CN113620429A (en) * | 2021-08-30 | 2021-11-09 | 中车环境科技有限公司 | Carbon source supplementing process for sewage treatment based on food wastewater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111762870A (en) * | 2020-07-09 | 2020-10-13 | 上海市城市建设设计研究总院（集团）有限公司 | Hydrolytic acidification and biological reaction combined treatment tank with surpassing function |
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| CN113620429A (en) * | 2021-08-30 | 2021-11-09 | 中车环境科技有限公司 | Carbon source supplementing process for sewage treatment based on food wastewater |
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