CN109160673A - A kind of native rubber processing waste water biological denitrification method - Google Patents
A kind of native rubber processing waste water biological denitrification method Download PDFInfo
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- CN109160673A CN109160673A CN201810955786.0A CN201810955786A CN109160673A CN 109160673 A CN109160673 A CN 109160673A CN 201810955786 A CN201810955786 A CN 201810955786A CN 109160673 A CN109160673 A CN 109160673A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F2101/30—Organic compounds
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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
- C02F3/02—Aerobic 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
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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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
Abstract
The invention discloses a kind of native rubber processing waste water biological denitrification methods, native rubber processing waste water enters 1#UASB reactor anaerobic methane production after adjusting pH to neutrality, the hydrogen sulfide of generation is discharged from water by methane gas stripping, hydrogen sulfide is reduced and inhibits methanogen；Waste water continues anaerobic methane production after subsequently entering 2#UASB reactor；Subsequent waste water enters 3#UASB with together with the reflux nitrification liquid of hypoxic bio membrane reactor, is nitrite nitrogen by nitrate-nitrogen reduction, while the part ammonia nitrogen in nitrous state and sewage occurs Anammox and generates nitrogen and nitrate nitrogen；Waste water enters back into hypoxic bio membrane reactor, it by ammonium oxidation remaining in water is nitrite nitrogen or nitrate nitrogen under the conditions of low-oxygen aeration, Anammox generation nitrogen and nitrate nitrogen, the final efficient denitrification for realizing native rubber processing waste water occur for nitrite nitrogen and ammonia nitrogen simultaneously.
Description
Technical field
The present invention relates to a kind of native rubber processing waste water biological denitrification methods, belong to technical field of biological sewage treatment.
Background technique
Native rubber processing waste water is mainly discharged using Heveatex by raw material production caouttchouc and concentrated latex etc.
Waste water.Wherein major pollutants are organic matter, ammonia nitrogen and phosphorus, mostly come from the solidification of rubber whey, ironed, the pressure of blob of viscose
The workshop sections such as crape, washing.The waste water is a kind of stronger high concentration organic acidity waste water of biodegradability, wherein COD in waste waterCr、TN、
TP concentration is respectively up to 20000,2000,250 mg/L or more.Native rubber processing waste water processing mainly removal organic matter and
The pollutants such as nitrogen phosphorus, to control black and odorous water and water eutrophication.Natural rubber waste water contains a large amount of sulfate radical, enters
Hydrogen sulfide can be reduced to after anaerobic pond, hydrogen sulfide can generate inhibition to methanogen, system methane production is caused to drastically reduce；
Traditional nitration denitrification biological denitrification process carbon source demand amount is big simultaneously, and operation energy consumption is high, increases wastewater treatment expense.
All the time it is believed that ammoxidation reaction can only occur under conditions of aerobic.Recent studies have found that in anaerobism
Under the conditions of, ammonia can also be by anaerobic ammonia oxidizing bacteria using nitrite as electron acceptor direct oxidation as nitrogen (NH4 ++NO2 -→N2).
Compared with traditional nitration denitrification bio-denitrification technology, Anammox denitrogenation technology has the advantage that (1) saves aeration quantity
60%, because only need to be nitrite nitrogen by the part mineralized nitrogen in sewage；(2) organic carbon source 100% is saved, because of anaerobism ammonia
It is oxidized to autotrophic denitrification, makees carbon source without organic matter；(3) greenhouse gases N2O discharge amount is few, because of Anammox metabolic pathway
Middle no N2O is generated.In addition, recent studies have shown that, during biological denitrification, part denitrifying bacterium can only secrete nitrate nitrogen also
Protoenzyme leads to occur nitrous in denitrification process so that the rate of reduction of nitrite nitrogen is less than the rate of reduction of nitrate nitrogen
Short-cut denitrification phenomenon has occurred in the accumulation of state nitrogen, reduce the demand of electron donor.By above-mentioned Anammox and short distance
Denitrification combines, then can reduce demand of the biological denitrificaion to organic carbon source.Therefore, if above-mentioned technology is applied to natural rubber
Processing waste water processing, then be expected to reduction system oxygen demand, reduces denitrogenation to the demand of organic matter, so as to will be more organic
Object is used for methane phase, improves system biogas yield.
Summary of the invention
The purpose of the present invention is to hydrogen sulfide in native rubber processing waste water treatment process to the suppression of methanogen and
The high problem of denitrogenation energy consumption proposes a kind of native rubber processing waste water biological denitrification method.
The technical solution of the present invention is as follows: providing a kind of native rubber processing waste water biological denitrification apparatus: being equipped with raw water water
Case, 1#UASB reactor, 2#UASB reactor, 3#UASB reactor, hypoxic bio membrane reactor；Raw water water tank is equipped with overflow
Pipe and blow-down pipe；Raw water water tank is connected by 1#UASB reactor intake pump with 1#UASB reactor inlet valve；1#UASB is anti-
Answer device cylindrical, top is equipped with three phase separator, and H is discharged on top2S and CH4；1#UASB reactor outlet pipe passes through 2#UASB
Reactor inlet valve is connect with 2#UASB reactor；2#UASB reactor is cylindrical, and top is equipped with three phase separator, and top is arranged
Put CH4；2#UASB reactor outlet pipe is connect by 3#UASB reactor inlet valve with 3#UASB reactor；3#UASB reactor
It is cylindrical, short-cut denitrification Anammox biomembrane is filled, top is equipped with three phase separator, and N is discharged on top2；3#UASB
Reactor outlet pipe is connect by hypoxic bio membrane reactor inlet valve with hypoxic bio membrane reactor；Hypoxic bio membrane reactor
It is cylindrical, short distance nitration Anammox biomembrane is filled, and be equipped with aeration head, provides oxygen by air compressor machine, and pass through gas
Flowmeter and air volume regulating valve control tolerance；Reflux pump is connected by return valve in nitrification liquid and 3#UASB reactor in nitrification liquid
It connects, final outflow water is discharged by hypoxic bio membrane reactor outlet pipe.
The method for realizing native rubber processing waste water biological denitrificaion using above-mentioned apparatus, comprising the following steps: the step of method
Suddenly are as follows:
1) activation system: being inoculated with has the methane phase sludge of excellent activity to 1#UASB reactor and 2#UASB reactor, sludge
Concentration is 4000-8000mg/L；It is inoculated with the short-cut denitrification Anammox biomembrane with excellent activity, is added to 3#UASB
Reactor, volume account for the 80-100% of the entire reactor reaction zone 3#UASB volume；It is inoculated with the short distance nitration with excellent activity
Anammox biomembrane is added to hypoxic bio membrane reactor, and volume accounts for entire hypoxic bio membrane reactor reaction zone volume
80-100%.
2) it is as follows that operation is adjusted when running:
2.1) 1#UASB reactor inlet flow-patterm, which adjusts 7.1-7.5, makes COD volumetric loading rate by adjusting hydraulic detention time
10-15kg/m3/ d, sulfate volumetric loading rate are less than 4kg/m3/d；
2.2) 2#UASB reactor makes it be discharged COD/TN 3-5 by adjusting hydraulic detention time；
2.3) 3#UASB reactor makes nitrate nitrogen volumetric loading rate 1-3kg/m by adjusting hydraulic detention time3/d；
2.4) hypoxic bio membrane reactor, DO concentration are 0.2-0.5 mg/L；By adjusting hydraulic detention time, make to be discharged NH4 +- N concentration is less than 3mg/L；
2.5) nitrification liquid internal reflux ratio is 200-400%, when system effluent nitrate-nitrogen concentration is greater than 10 mg/L, improves nitrification liquid
Internal reflux ratio reduces nitrification liquid internal reflux ratio when system effluent nitrate-nitrogen concentration is less than 5 mg/L.
The process flow of native rubber processing waste water in this device are as follows: low native rubber processing waste water is made to enter 1# first
UASB reactor, under anaerobic environment, methanogen utilizes the high-enriched organics anaerobic methane production in raw water.By adjusting pH
Value strengthens methanogenesis and methane gas stripping, makes the H that sulfate reduction generates in reactor2S is discharged from water in time, drop
Low H2Inhibition of the S to methanogen.Then 1#UASB reactor water outlet enters 2#UASB reactor, and methanogen continues will be in water
Remaining organic matter carries out anaerobic methane production.Then 2#UASB reactor water outlet enters 3#UASB reactor, which has short
Journey denitrification anaerobic ammoxidation biomembrane, the denitrifying bacterium on biomembrane are nitrified reflux using remaining organic carbon source in water
The nitrate-nitrogen reduction of liquid is nitrite nitrogen, while the part in the anaerobic ammonia oxidizing bacteria nitrite nitrogen and raw water that generate denitrification
Mineralized nitrogen is nitrogen.The water outlet of 3#UASB reactor enters hypoxic bio membrane reactor, which fills short distance nitration anaerobism
Ammoxidation biomembrane, some residual mineralized nitrogen in raw water is nitrite nitrogen under low-oxygen environment by the nitrifier on biomembrane
And nitrate nitrogen, the nitrite nitrogen of generation and remaining mineralized nitrogen are nitrogen by anaerobic ammonia oxidizing bacteria, and generate a small amount of nitrate nitrogen,
The final efficient denitrification for realizing native rubber processing waste water.
The present invention is based on anaerobic methane production, the reaction of short-cut denitrification Anammox and short distance nitration Anammox are anti-
It answers, is had the advantage that compared with traditional anaerobic methane production gas-nitration denitrification biological denitrification process
1) by adjusting raw water pH reinforced anaerobic methane phase, the H of sulfate reduction generation is taken away in time by gas stripping2S, drop
Low H2Inhibition of the S to methanogen.
2) by strengthened anaerobic ammoxidation denitrogenation, biological denitrificaion is reduced to the demand of organic matter, so that more organic
Object is used for anaerobic methane production, improves system biogas output.
3) by the denitrogenation of consolidation system Anammox, the oxygen demand of system is reduced, biological denitrificaion system is eventually reduced
System energy consumption.
4) biological denitrification apparatus is cylindrical reactor, so that occupied area reduces.
5) biofilm reactor biomass is high, and load is high, and sludge output is low, can reduce sludge treatment expense.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of native rubber processing waste water biological denitrification apparatus and method of the present invention.
In figure, 1 is raw water water tank；2 be 1#UASB reactor；3 be 2#UASB reactor；4 be 3#UASB reactor；5 are
Hypoxic bio membrane reactor；1.1 be overflow pipe；1.2 be blow-down pipe；2.1 be 1#UASB reactor intake pump；2.2 be 1#UASB
Reactor inlet valve；2.3 be sample tap；2.4 be 1#UASB reactor outlet pipe；2.5 be three phase separator；3.1 be 2#UASB
Reactor intake pump；3.2 be 2#UASB reactor inlet valve；3.3 be 2#UASB reactor outlet pipe；4.1 react for 3#UASB
Device intake pump；4.2 be 3#UASB reactor inlet valve；4.3 be short-cut denitrification Anammox biomembrane；4.4 be 3#UASB
Reactor outlet pipe；5.1 be return valve in nitrification liquid；5.2 be reflux pump in nitrification liquid；5.3 for hypoxic bio membrane reactor into
Water pump；5.4 be hypoxic bio membrane reactor inlet valve；5.5 be aeration head；5.6 be short distance nitration Anammox biomembrane；
5.7 be hypoxic bio membrane reactor outlet pipe；5.8 be air volume regulating valve；5.9 be gas flowmeter；5.10 being air compressor machine.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples: as shown in Figure 1, processing natural rubber processing is useless
The nitrogen rejection facility of water is equipped with raw water water tank 1,1#UASB reactor 2,2#UASB reactor 3,3#UASB reactor 4, hypoxic bio
Membrane reactor 5；Raw water water tank 1 is equipped with overflow pipe 1.1 and blow-down pipe 1.2；Raw water water tank 1 passes through 1#UASB reactor intake pump
2.1 are connected with 1#UASB reactor inlet valve 2.2；1#UASB reactor 2 is cylindrical, and top is equipped with three phase separator 2.5, and
Discharge H in top2S and CH4；1#UASB reactor outlet pipe 2.4 passes through 2#UASB reactor inlet valve 3.2 and 2#UASB reactor 3
Connection；2#UASB reactor 3 is cylindrical, and top is equipped with three phase separator 2.5, and CH is discharged on top4；The water outlet of 2#UASB reactor
Pipe 3.3 is connect by 3#UASB reactor inlet valve 4.2 with 3#UASB reactor 4；3#UASB reactor 4 is cylindrical, fills short
Journey denitrification anaerobic ammoxidation biomembrane 4.3, top is equipped with three phase separator 2.5, and N is discharged on top2；3#UASB reactor goes out
Water pipe 4.4 is connect by hypoxic bio membrane reactor inlet valve 5.4 with hypoxic bio membrane reactor 5；Hypoxic bio membrane reactor 5
It is cylindrical, short distance nitration Anammox biomembrane 5.6 is filled, and be equipped with aeration head 5.5, provides oxygen by air compressor machine 5.10,
And tolerance is controlled by gas flowmeter 5.9 and air volume regulating valve 5.8；Reflux pump 5.2 passes through reflux in nitrification liquid in nitrification liquid
Valve 5.1 is connect with 3#UASB reactor 4, and final outflow water is discharged by hypoxic bio membrane reactor outlet pipe 5.7.
Test adopts artificial distribution and simulates natural rubber waste water, and specific water quality is as follows: COD concentration is 8000-10000mg/L,
9000 mg/L of average out to；NH+ 4-N concentration is 340-420mg/L, average out to 400mg/L；NO- 2-N≤0.5mg/L, NO-
3-N ≤0.5mg/L.Pilot system is as shown in Figure 1, each reactor is all made of organic glass is made, 1#UASB reactor, 2#
UASB reactor, 3#UASB reactor and hypoxic bio membrane reactor reactor volume are 3L.
Carrying out practically operation is as follows:
1) activation system: being inoculated with has the methane phase sludge of excellent activity to 1#UASB reactor and 2#UASB reactor, sludge
Concentration is 8000mg/L；It is inoculated with the short-cut denitrification Anammox biomembrane with excellent activity, is added to 3#UASB reaction
Device, volume account for the 100% of the entire reactor reaction zone 3#UASB volume；It is inoculated with the short distance nitration anaerobism ammonia with excellent activity
Oxidative biological film is added to hypoxic bio membrane reactor, and volume accounts for entire hypoxic bio membrane reactor reaction zone volume
100%。
2) it is as follows that operation is adjusted when running:
2.1) 1#UASB reactor inlet flow-patterm, which adjusts 7.1-7.5, makes COD volumetric loading rate by adjusting hydraulic detention time
10kg/m3/ d, sulfate volumetric loading rate are less than 4kg/m3/d；
2.2) 2#UASB reactor makes it be discharged COD/TN 4 by adjusting hydraulic detention time；
2.3) 3#UASB reactor makes nitrate nitrogen volumetric loading rate 1kg/m by adjusting hydraulic detention time3/d；
2.4) hypoxic bio membrane reactor, DO concentration are 0.2-0.5 mg/L；By adjusting hydraulic detention time, make to be discharged NH4 +- N concentration is less than 3mg/L；
2.5) nitrification liquid internal reflux ratio is 300%, when system effluent nitrate-nitrogen concentration is greater than 10 mg/L, improves in nitrification liquid and returns
Ratio is flowed, when system effluent nitrate-nitrogen concentration is less than 5 mg/L, reduces nitrification liquid internal reflux ratio.
Test result shows: after stable, system effluent COD concentration is 50-90 mg/L, 60.3 mg/L of average out to；
NH+ 4-N concentration 0-3 mg/L, 1.4 mg/L of average out to；NO- 2-N concentration is 0-1mg/L, 0.2 mg/L of average out to；NO-
3-N concentration 0-10 mg/L, 8.2 mg/L of average out to.
Claims (1)
1. a kind of native rubber processing waste water biological denitrification method, it is characterised in that: be equipped with raw water water tank (1), 1#UASB reacts
Device (2), 2#UASB reactor (3), 3#UASB reactor (4), hypoxic bio membrane reactor (5)；Raw water water tank (1) is equipped with overflow
Manage (1.1) and blow-down pipe (1.2)；Raw water water tank (1) is intake by 1#UASB reactor intake pump (2.1) and 1#UASB reactor
Valve (2.2) is connected；1#UASB reactor (2) is cylindrical, and top is equipped with three phase separator (2.5), and H is discharged on top2S and
CH4；1#UASB reactor outlet pipe (2.4) is connect by 2#UASB reactor inlet valve (3.2) with 2#UASB reactor (3)；
2#UASB reactor (3) is cylindrical, and top is equipped with three phase separator (2.5), and CH is discharged on top4；The water outlet of 2#UASB reactor
Pipe (3.3) is connect by 3#UASB reactor inlet valve (4.2) with 3#UASB reactor (4)；3#UASB reactor (4) is in column
Shape is filled short-cut denitrification Anammox biomembrane (4.3), and top is equipped with three phase separator (2.5), and N is discharged on top2；
3#UASB reactor outlet pipe (4.4) is connected by hypoxic bio membrane reactor inlet valve (5.4) and hypoxic bio membrane reactor (5)
It connects；Hypoxic bio membrane reactor (5) is cylindrical, fills short distance nitration Anammox biomembrane (5.6), and is equipped with aeration head
(5.5), oxygen is provided by air compressor machine (5.10), and controls tolerance by gas flowmeter (5.9) and air volume regulating valve (5.8)；
Reflux pump (5.2) is connect by return valve (5.1) in nitrification liquid with 3#UASB reactor (4) in nitrification liquid, and final outflow water passes through
Hypoxic bio membrane reactor outlet pipe (5.7) discharge；
The step of method are as follows:
1) activation system: being inoculated with has the methane phase sludge of excellent activity to 1#UASB reactor and 2#UASB reactor, sludge
Concentration is 4000-8000mg/L；It is inoculated with the short-cut denitrification Anammox biomembrane with excellent activity, is added to 3#UASB
Reactor, volume account for the 80-100% of the entire reactor reaction zone 3#UASB volume；It is inoculated with the short distance nitration with excellent activity
Anammox biomembrane is added to hypoxic bio membrane reactor, and volume accounts for entire hypoxic bio membrane reactor reaction zone volume
80-100%；
2) it is as follows that operation is adjusted when running:
2.1) 1#UASB reactor inlet flow-patterm, which adjusts 7.1-7.5, makes COD volumetric loading rate by adjusting hydraulic detention time
10-15kg/m3/ d, sulfate volumetric loading rate are less than 4kg/m3/d；
2.2) 2#UASB reactor makes it be discharged COD/TN 3-5 by adjusting hydraulic detention time；
2.3) 3#UASB reactor makes nitrate nitrogen volumetric loading rate 1-3kg/m by adjusting hydraulic detention time3/d；
2.4) hypoxic bio membrane reactor, DO concentration are 0.2-0.5 mg/L；By adjusting hydraulic detention time, make to be discharged NH4 +-
N concentration is less than 3mg/L；
2.5) nitrification liquid internal reflux ratio is 200-400%, when system effluent nitrate-nitrogen concentration is greater than 10 mg/L, improves nitrification liquid
Internal reflux ratio reduces nitrification liquid internal reflux ratio when system effluent nitrate-nitrogen concentration is less than 5 mg/L.
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| CN109607786A (en) * | 2018-12-21 | 2019-04-12 | 济南尚方环保科技有限公司 | A kind of combined anaerobic ammoxidation-anaerobism-membrane bioreactor sewage-treatment plant and method |
| CN110407418A (en) * | 2019-08-19 | 2019-11-05 | 海南大学 | A kind of the native rubber processing waste water deep denitrogenation device and method of containing sulfate |
| CN111470622A (en) * | 2020-04-16 | 2020-07-31 | 浙江大学宁波理工学院 | Method and device for treating nitrate nitrogen in high-concentration sulfate wastewater |
| CN113003725A (en) * | 2021-02-20 | 2021-06-22 | 北京工业大学 | Device and method for promoting quality improvement and efficiency improvement of sewage plant based on DEAMOX and sludge fermentation coupling technology |
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| CN113003725A (en) * | 2021-02-20 | 2021-06-22 | 北京工业大学 | Device and method for promoting quality improvement and efficiency improvement of sewage plant based on DEAMOX and sludge fermentation coupling technology |
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| Publication number | Publication date |
|---|---|
| CN109160673B (en) | 2021-05-25 |
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