CN108911361A - A kind of processing method of high concentrated organic wastewater - Google Patents
A kind of processing method of high concentrated organic wastewater Download PDFInfo
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- CN108911361A CN108911361A CN201810646181.3A CN201810646181A CN108911361A CN 108911361 A CN108911361 A CN 108911361A CN 201810646181 A CN201810646181 A CN 201810646181A CN 108911361 A CN108911361 A CN 108911361A
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- organic wastewater
- catalyst
- concentrated organic
- high concentrated
- reaction
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
-
- 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
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
-
- 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
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1263—Sequencing batch reactors [SBR]
Abstract
The invention discloses a kind of processing methods of high concentrated organic wastewater.The processing method of the high concentrated organic wastewater includes the following steps：High concentrated organic wastewater is put into grid pond and is pre-processed, the impurity such as oil removal and colloid are removed；Pretreated high concentrated organic wastewater is subjected to heterogeneous Fenton's reaction, the nanometer Fe loaded with NaY molecular sieve3O4As catalyst, catalyst is separated with reaction solution after reaction；Isolated reaction solution is subjected to SBR processing；By SBR, treated is drained into reverse osmosis water treatment system.The present invention provides a kind of processing method of high concentrated organic wastewater, can be effectively treated to high ammonia nitrogen, high concentration hard-degraded organic waste water, and have the advantages that applied widely, contaminant degradation is high-efficient, processing cost is low etc..
Description
Technical field
The present invention relates to technical field of waste water processing, specifically, being related to a kind of processing method of high concentrated organic wastewater.
Background technique
With the rapid development of social economy, the raising of living standards of the people, water environment pollution problem increasingly cause society
The extensive concern of meeting.In decades, the accumulation of the progress of technology and experience, so that conventional sanitary sewage is efficiently treated,
But for high ammonia nitrogen, high concentration hard-degraded organic waste water, these organic wastewaters are mainly from food production, synthesis pharmaceutical, pesticide
The industries such as production, black liquid, leather-making waste water, glutamate production, petroleum refining, coal chemical industry, due to its complicated component, molecular structure
Stablize, is difficult using conventional biochemical processing up to standard, it is still necessary to constantly explore and study.
Fenton technology is a kind of common high-level oxidation technology, is often used in processing high-concentration hardly-degradable organic waste
Water, such as waste water from dyestuff, phenol wastewater, acrylic nitrile waste water, black liquid, landfill leachate.But either standard Fenton is tried
Agent is still modified Fenton reagent, requires that competence exertion normally acts between 3-5 in pH.And heterogeneous Fenton technology
By the way that iron catalyst is loaded in matrix, even if remaining to generate more HO in the case where pH is neutrallty condition, so as to avoid
Before subsequent biological treatment plus alkali adjusts the problem of pH value leads to too high in salinity.After COD lowers, denitrogenation processing also needs supplement carbon
Source causes cost to increase.Anammox technology can carry out denitrogenation, Ke Yiyou using nitrate or nitrite as electron acceptor
Effect solves the problems, such as this.
Summary of the invention
It is difficult technical problem up to standard to solve above-mentioned high concentrated organic wastewater using conventional biochemical processing, this
Invention provides a kind of processing method of high concentrated organic wastewater, and the processing method of the high concentrated organic wastewater can be to high ammonia nitrogen, height
Concentration organic wastewater with difficult degradation thereby is effectively treated, and has applied widely, contaminant degradation is high-efficient, processing cost is low etc.
Advantage.
The present invention provides a kind of processing methods of high concentrated organic wastewater, include the following steps：
It is pre-processed Step 1: high concentrated organic wastewater is put into grid pond, removes the impurity such as oil removal and colloid；
Step 2: high concentrated organic wastewater pretreated in the step 1 is carried out heterogeneous Fenton's reaction, with NaY
Molecular sieve carried nanometer Fe3O4As catalyst, catalyst is separated with reaction solution after reaction；
Step 3: reaction solution isolated in the step 2 is carried out SBR processing；
Step 4: by SBR in the step 3, treated is drained into reverse osmosis water treatment system.
In a kind of preferred embodiment of the processing method of high concentrated organic wastewater provided by the invention, the step 1
In, the coarse rack that grid spacing is 60~70mm is sequentially installed in the grid pond, the middle lattice that grid spacing is 20~25mm
Grid, the fine fack that grid spacing is 5~10mm.
In a kind of preferred embodiment of the processing method of high concentrated organic wastewater provided by the invention, the step 2
In, first the pH value of high concentrated organic wastewater pretreated in the step 1 is adjusted between 7.0~8.0, then again into
The heterogeneous Fenton's reaction of row, assembles catalyst by way of externally-applied magnetic field after reaction, realizes catalyst and reaction solution
Separation.
In a kind of preferred embodiment of the processing method of high concentrated organic wastewater provided by the invention, the catalyst
Preparation method is：A certain amount of NaY molecular sieve is taken, is sieved with 100 mesh sieve after grinding, it is spare；Add into the NaY molecular sieve after being ground up, sieved
Enter suitable FeSO4·7H2O and distilled water, are sufficiently stirred, and obtain paste, the Fe of the paste2+Load capacity is 20%；It will
Still aging 2.5~3 hours of the paste is put into baking oven low temperature drying under conditions of lower than 60 DEG C, is subsequently placed in horse
It is roasted 3~4 hours at 200 DEG C in boiling stove, grinds and sieved with 100 mesh sieve to get the catalyst after taking-up is cooling.
In a kind of preferred embodiment of the processing method of high concentrated organic wastewater provided by the invention, the step 3
In, when the reaction solution carries out SBR processing, the flooding time for phase of intaking is 2 hours, it is aerated using Limited Aeration mode,
And appropriate biological growth promoter is added；The reaction time of reaction phase is 4 hours；The sedimentation time of precipitating phase is 1 hour；Lay-up period
Standby time is 2 hours.
In a kind of preferred embodiment of the processing method of high concentrated organic wastewater provided by the invention, the high concentration has
The processing method of machine waste water further includes process catalyst regeneration step, and the process catalyst regeneration step is specially：It will be in the step 2
The catalyst separated after reaction is recycled, and is subsequently placed in muffle furnace and is roasted 2~2.5 hours under conditions of 500 DEG C,
Cooling is taken out, grinds, sieve with 100 mesh sieve, obtain regenerated catalyst, the regenerated catalyst is back to the step 2 and is carried out again
It uses.
Compared to the prior art, the processing method of high concentrated organic wastewater provided by the invention has the advantages that：
One, the present invention can be effectively treated high ammonia nitrogen, high concentration hard-degraded organic waste water, and applied widely, dirty
It is low to contaminate object degradation efficiency height, processing cost.
Two, by carrying out recycling utilization of living again to catalyst, cost of sewage disposal can be further decreased.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The processing method of the high concentrated organic wastewater includes the following steps：
(1) high concentrated organic wastewater is put into grid pond and is pre-processed, remove the impurity such as oil removal and colloid；
Specifically, being sequentially installed with the coarse rack that grid spacing is 60~70mm in the grid pond, grid spacing is 20
The middle grid of~25mm, the fine fack that grid spacing is 5~10mm, can dramatically remove the suspended matter and colloid in waste water
Equal impurity；
(2) high concentrated organic wastewater pretreated in (1) is subjected to heterogeneous Fenton's reaction, is loaded with NaY molecular sieve
Nanometer Fe3O4As catalyst, catalyst is separated with reaction solution after reaction；
Specifically, the pH value of pretreated high concentrated organic wastewater in (1) is first adjusted the temperature between 7.0~8.0
Adjust to 25~35 DEG C, then carry out heterogeneous Fenton's reaction again, the reaction time 2~4 hours, reaction system by catalyst and
H2O2It constitutes, the nanometer Fe that catalyst is loaded by NaY molecular sieve3O4It constitutes, catalyst amount and H2O2The molar ratio of dosage is 1:1
~1.5, and be stirred in reaction, make waste water and catalyst and H2O2It is sufficiently mixed.Pass through externally-applied magnetic field after reaction
Mode assembles catalyst, realizes the separation of catalyst and reaction solution.
The preparation method of the catalyst is：A certain amount of NaY molecular sieve is taken, is sieved with 100 mesh sieve after grinding, it is spare；To grinding
Suitable FeSO is added in NaY molecular sieve after sieving4·7H2O and distilled water, are sufficiently stirred, and obtain paste, the paste
Fe2+Load capacity is 20%；The paste still aging 2.5~3 hour are put into baking oven under conditions of lower than 60 DEG C
Low temperature drying is subsequently placed in muffle furnace and roasts 3~4 hours at 200 DEG C, grinds and is sieved with 100 mesh sieve to get institute after taking-up is cooling
State catalyst.
(3) reaction solution isolated in (2) is subjected to SBR processing；
Specifically, the flooding time for phase of intaking is 2 hours, using Limited Aeration side when the reaction solution carries out SBR processing
Formula is aerated, and appropriate biological growth promoter is added；The reaction time of reaction phase is 4 hours；The sedimentation time of precipitating phase is 1 small
When；The standby time of lay-up period is 2 hours.
The biological growth promoter is purchased to Pulup Biotechnology (Shanghai) Co., Ltd., and usage amount is that every cube of waste water is added
2.5ml biological growth promoter；It is nitrogen, enzyme and organic acid that it, which contains, can stimulate decomposition of the aerobic beneficial bacterium to useless Organic substance in water, is promoted
Into the breeding of microorganism, the oxidative decomposition capacity of microbe is improved, improves water treatment effect.
(4) by SBR in (3), treated is drained into reverse osmosis water treatment system, goes bacterium in water removal, virus, glue
Body, organic matter and most dissolubility salt.
(5) catalyst separated after reaction in by described in (2) recycles, and is subsequently placed in muffle furnace in 500 DEG C
Under conditions of roast 2~2.5 hours, take out cooling, grind, sieve with 100 mesh sieve, obtain regenerated catalyst, by the regenerated catalyst
(2) are back to be reused.
The processing method of high concentrated organic wastewater provided by the invention has the advantages that：
One, the present invention can be effectively treated high ammonia nitrogen, high concentration hard-degraded organic waste water, and applied widely, dirty
It is low to contaminate object degradation efficiency height, processing cost.
Two, by carrying out recycling utilization of living again to catalyst, cost of sewage disposal can be further decreased.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (6)
1. a kind of processing method of high concentrated organic wastewater, which is characterized in that include the following steps：
It is pre-processed Step 1: high concentrated organic wastewater is put into grid pond, removes the impurity such as oil removal and colloid；
Step 2: high concentrated organic wastewater pretreated in the step 1 is carried out heterogeneous Fenton's reaction, with NaY molecule
Sieve the nanometer Fe of load3O4As catalyst, catalyst is separated with reaction solution after reaction；
Step 3: reaction solution isolated in the step 2 is carried out SBR processing；
Step 4: by SBR in the step 3, treated is drained into reverse osmosis water treatment system.
2. the processing method of high concentrated organic wastewater according to claim 1, which is characterized in that in the step 1, institute
It states and is sequentially installed with the coarse rack that grid spacing is 60~70mm in grid pond, middle grid, the lattice that grid spacing is 20~25mm
Grid spacing is the fine fack of 5~10mm.
3. the processing method of high concentrated organic wastewater according to claim 1, which is characterized in that in the step 2, first
The pH value of high concentrated organic wastewater pretreated in the step 1 is adjusted between 7.0~8.0, is then carried out again non-equal
Phase Fenton's reaction assembles catalyst by way of externally-applied magnetic field after reaction, realizes the separation of catalyst and reaction solution.
4. the processing method of high concentrated organic wastewater according to claim 1, which is characterized in that the preparation of the catalyst
Method is：A certain amount of NaY molecular sieve is taken, is sieved with 100 mesh sieve after grinding, it is spare；It is added into the NaY molecular sieve after being ground up, sieved suitable
The FeSO of amount4·7H2O and distilled water, are sufficiently stirred, and obtain paste, the Fe of the paste2+Load capacity is 20%；It will be described
Paste still aging 2.5~3 hours, it is put into baking oven low temperature drying under conditions of lower than 60 DEG C, is subsequently placed in muffle furnace
In roasted 3~4 hours at 200 DEG C, take out it is cooling after grind and sieve with 100 mesh sieve to get the catalyst.
5. the processing method of high concentrated organic wastewater according to claim 1, which is characterized in that in the step 3, institute
When stating reaction solution progress SBR processing, the flooding time for phase of intaking is 2 hours, is aerated using Limited Aeration mode, and be added
Appropriate biological growth promoter；The reaction time of reaction phase is 4 hours；The sedimentation time of precipitating phase is 1 hour；Lay-up period it is idle when
Between be 2 hours.
6. the processing method of high concentrated organic wastewater according to claim 1, which is characterized in that the high concentration organic waste
The processing method of water further includes process catalyst regeneration step, and the process catalyst regeneration step is specially：It will be reacted in the step 2
After the catalyst that separates recycled, be subsequently placed in muffle furnace and roasted 2~2.5 hours under conditions of 500 DEG C, taken out
It is cooling, it grinds, sieve with 100 mesh sieve, obtain regenerated catalyst, the regenerated catalyst, which is back to the step 2 again, to be made
With.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810646181.3A CN108911361A (en) | 2018-06-21 | 2018-06-21 | A kind of processing method of high concentrated organic wastewater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810646181.3A CN108911361A (en) | 2018-06-21 | 2018-06-21 | A kind of processing method of high concentrated organic wastewater |
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| CN108911361A true CN108911361A (en) | 2018-11-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110040839A (en) * | 2019-05-08 | 2019-07-23 | 赵佳妮 | Handle the composition and preparation method thereof of fruits and vegetables rubbish |
| US20220064040A1 (en) * | 2018-12-25 | 2022-03-03 | Hunan Wisdow Water Environmental Engineering Co., Ltd. | Sewage treatment apparatus suitable for single-family domestic sewage treatment |
-
2018
- 2018-06-21 CN CN201810646181.3A patent/CN108911361A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220064040A1 (en) * | 2018-12-25 | 2022-03-03 | Hunan Wisdow Water Environmental Engineering Co., Ltd. | Sewage treatment apparatus suitable for single-family domestic sewage treatment |
| CN110040839A (en) * | 2019-05-08 | 2019-07-23 | 赵佳妮 | Handle the composition and preparation method thereof of fruits and vegetables rubbish |
| CN110040839B (en) * | 2019-05-08 | 2022-12-16 | 山东生态家园环保股份有限公司 | Composition for treating fruit and vegetable garbage and preparation method thereof |
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Application publication date: 20181130 |
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