CN109368927A - A kind of alkali decrement waste water treatment process - Google Patents
A kind of alkali decrement waste water treatment process Download PDFInfo
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- CN109368927A CN109368927A CN201811380878.7A CN201811380878A CN109368927A CN 109368927 A CN109368927 A CN 109368927A CN 201811380878 A CN201811380878 A CN 201811380878A CN 109368927 A CN109368927 A CN 109368927A
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- reactor
- waste water
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- alkali decrement
- water treatment
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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
-
- 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
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of alkali decrement waste water treatment process, carry out coarse filtration to alkali decrement waste water using grid, remove insoluble impurity, the waste water after coarse filtration is then delivered to alkali decrement waste water conditioning tank and carries out pH value adjusting；Alkali decrement waste water after pH value is adjusted is delivered to acid out sedimentation basin and carries out acid precipitation reaction, after filtering, precipitating sludge is pumped to sludge-tank and carries out filters pressing processing, filtering waste liquid is delivered in high temperature anaerobic reactor after pH value is adjusted to neutrality and flows into anaerobic in low temperature reactor progress Anaerobic Treatment, subsequently enter level-one and oxygen biofilm reactor, it enters back into level-one aerobic reactor, the filtering waste liquid of level-one aerobic reactor enters second level and oxygen biofilm reactor, subsequently enter flotation tank, and water treatment flocculant is added in flotation tank, it is discharged or recycles after being separated by solid-liquid separation.The present invention uses multistage anaerobic device, and simultaneous oxygen biofilm is introduced between anaerobic device and aerobic device, improves waste water treatment efficiency and effluent characteristics.
Description
Technical field
The present invention relates to a kind of alkali decrement waste water treatment process, belong to field of waste water treatment.
Background technique
Due to increasingly serious pollution pressure, China requires to be increasingly stringenter for the requirement that three industrial wastes are handled.
In traditional decrement waste water anaerobic-aerobic treatment process, go out water running effect in the prevalence of aerobic unit processing anaerobic unit
The poor phenomenon of fruit causes disposed of in its entirety technique to be difficult to reach and be satisfied with operational effect.Its possible cause: 1) it in anaerobic effluent dissolves
Oxygen is very low, and the oxidizing potential of anaerobic effluent is low, is directly entered subsequent aerobic unit, and condition of water quality is not able to satisfy aerobic micro- life
The needs of object vegetative activity；2) certain anaerobism products such as sulfide, ammonia etc. in anaerobic effluent, there is certain suppression to aerobic microbiological
Production is used, and there is inefficiency, goes the low phenomenon of rate of giving up.
Summary of the invention
To solve the above-mentioned problems, the present invention proposes a kind of alkali decrement waste water treatment process, using multistage anaerobic device, and
Simultaneous oxygen biofilm is introduced between anaerobic device and aerobic device, improves waste water treatment efficiency and effluent characteristics.
The technical solution mainly used in the present invention are as follows:
A kind of alkali decrement waste water treatment process, the specific steps are as follows:
Step 1: coarse filtration being carried out to alkali decrement waste water using grid, insoluble impurity is removed, is then delivered to the waste water after coarse filtration
Alkali decrement waste water conditioning tank；
Step 2: air stirring being carried out to alkali decrement waste water conditioning tank using air, and acid is added in alkali decrement waste water conditioning tank
Solution carries out pH value adjusting；
Step 3: the alkali decrement waste water in step 2 after pH value is adjusted being delivered to acid out sedimentation basin and carries out acid precipitation reaction, through taking out
After filter, precipitating sludge is pumped to sludge-tank, enters step 4, filtering waste liquid is delivered to high temperature after pH value is adjusted to neutrality
In anaerobic reactor, effective stay time is 0.5-1h in high temperature anaerobic reactor, enters step 5；
Step 4: the sludge in sludge-tank being subjected to filters pressing processing using filter press, profession will be then transported to outside the sludge after filters pressing
Treatment plant；
Step 5: filtering waste liquid flows into anaerobic in low temperature reactor after high temperature anaerobic reactor and carries out Anaerobic Treatment, subsequently enters step
Rapid 6；
Step 6: the waste liquid through anaerobic in low temperature reactor enters level-one and oxygen biofilm reactor, effective stay time 5-
10h is subsequently entered in level-one aerobic reactor, effective stay time 0.5-1.5h；
Step 7: the filtering waste liquid through level-one aerobic reactor in step 6 enters second level and oxygen biofilm reactor, and in second level
And limited aeration stirring is carried out in oxygen biofilm reactor, it is aerobic anti-to subsequently enter second level by effective stay time 2-3.5h
Device is answered to be reacted；
Step 8: effective stay time is 3-4.5h in second level aerobic reactor, subsequently enters flotation tank, and in flotation tank
Water treatment flocculant is added, is discharged or recycles after being separated by solid-liquid separation.
Preferably, pH is adjusted to 3-4 in the step 2.
Preferably, the temperature of the step 3 high temperature anaerobic reactor is maintained at 56 ± 1 DEG C.
Preferably, the temperature of anaerobic in low temperature reactor is maintained at 38 ± 1 DEG C in the step 5.
Preferably, level-one and oxygen biofilm reactor and second level in the step 7 and oxygen biomembrane are anti-in the step 6
It answers the bottom in device to be equipped with several bar ditch, and is equipped with elastic solid filler in every bar ditch.
Preferably, bottom is equipped with several PVC perforated pipes, the logical sky of the perforated pipe in the second level and oxygen biofilm reactor
Gas carries out limited aeration.
Preferably, in the level-one and oxygen biofilm reactor and second level and oxygen biofilm reactor waste liquid dissolved oxygen control
It is made as 0 ~ 0.5mg/L.
Preferably, the water treatment flocculant is PAM inorganic agent.
The utility model has the advantages that the present invention, which provides a kind of alkali decrement waste water treatment process, is incorporated in level-one using multistage anaerobic device
The conversion of the easily biodegradable organics such as acetic acid, benzoic acid is rapidly completed in anaerobic reactor, plays in rear stage processing to benzene
Dioctyl phthalate, to the inhibiting effect of the hardly degraded organic substances such as toluene dioctyl phthalate, while the stability of system is maintained, in addition, and oxygen
Biofilm is cited as anaerobic effluent into the dissolved oxygen of increase waste water before subsequent Aerobic Process for Treatment, removes the anaerobism production in waste water
Object, mitigating it influences the inhibition of subsequent Aerobic Process for Treatment, improves the waste water treatment efficiency and processing quality of system.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below to the embodiment of the present application
In technical solution be clearly and completely described, it is clear that described embodiments are only a part of embodiments of the present application,
Instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making creative labor
Every other embodiment obtained under the premise of dynamic, shall fall within the protection scope of the present application.
Further detailed description has been done to technical solution of the present invention with reference to the accompanying drawing:
A kind of alkali decrement waste water treatment process, the specific steps are as follows:
Step 1: coarse filtration being carried out to alkali decrement waste water using grid, insoluble impurity is removed, is then delivered to the waste water after coarse filtration
Alkali decrement waste water conditioning tank；
Step 2: air stirring being carried out to alkali decrement waste water conditioning tank using air, and acid is added in alkali decrement waste water conditioning tank
Solution carries out pH value adjusting；
Step 3: the alkali decrement waste water in step 2 after pH value is adjusted being delivered to acid out sedimentation basin and carries out acid precipitation reaction, through taking out
After filter, precipitating sludge is pumped to sludge-tank, enters step 4, filtering waste liquid is delivered to high temperature after pH value is adjusted to neutrality
In anaerobic reactor, effective stay time is 0.5-1h in high temperature anaerobic reactor, enters step 5；
Step 4: the sludge in sludge-tank being subjected to filters pressing processing using filter press, profession will be then transported to outside the sludge after filters pressing
Treatment plant；
Step 5: filtering waste liquid flows into anaerobic in low temperature reactor after high temperature anaerobic reactor and carries out Anaerobic Treatment, subsequently enters step
Rapid 6；
Step 6: the waste liquid through anaerobic in low temperature reactor enters level-one and oxygen biofilm reactor, effective stay time 5-
10h is subsequently entered in level-one aerobic reactor, effective stay time 0.5-1.5h；
Step 7: the filtering waste liquid through level-one aerobic reactor in step 6 enters second level and oxygen biofilm reactor, and in second level
And limited aeration stirring is carried out in oxygen biofilm reactor, it is aerobic anti-to subsequently enter second level by effective stay time 2-3.5h
Device is answered to be reacted；
Step 8: effective stay time is 3-4.5h in second level aerobic reactor, subsequently enters flotation tank, and in flotation tank
Water treatment flocculant is added, is discharged or recycles after being separated by solid-liquid separation.
Preferably, pH is adjusted to 3-4 in the step 2.
Preferably, the temperature of the step 3 high temperature anaerobic reactor is maintained at 56 ± 1 DEG C.
Preferably, the temperature of anaerobic in low temperature reactor is maintained at 38 ± 1 DEG C in the step 5.
Preferably, level-one and oxygen biofilm reactor and second level in the step 7 and oxygen biomembrane are anti-in the step 6
It answers the bottom in device to be equipped with several bar ditch, and is equipped with elastic solid filler in every bar ditch.
Preferably, bottom is equipped with several PVC perforated pipes, the logical sky of the perforated pipe in the second level and oxygen biofilm reactor
Gas carries out limited aeration.
Preferably, in the level-one and oxygen biofilm reactor and second level and oxygen biofilm reactor waste liquid dissolved oxygen control
It is made as 0 ~ 0.5mg/L.
Preferably, the water treatment flocculant is PAM inorganic agent.
Limited aeration in the present invention is that those skilled in the art are adjusted according to actual needs, belongs to routine techniques hand
Section, so without specifically quantifying.
Anaerobic reactor and oxygen biofilm reactor are used in the present invention and aerobic reactor is the prior art, ability
Field technique personnel can select corresponding reactor according to actual needs.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of alkali decrement waste water treatment process, it is characterised in that: specific step is as follows:
Step 1: coarse filtration being carried out to alkali decrement waste water using grid, insoluble impurity is removed, is then delivered to the waste water after coarse filtration
Alkali decrement waste water conditioning tank；
Step 2: air stirring being carried out to alkali decrement waste water conditioning tank using air, and acid is added in alkali decrement waste water conditioning tank
Solution carries out pH value adjusting；
Step 3: the alkali decrement waste water in step 2 after pH value is adjusted being delivered to acid out sedimentation basin and carries out acid precipitation reaction, through taking out
After filter, precipitating sludge is pumped to sludge-tank, enters step 4, filtering waste liquid is delivered to high temperature after pH value is adjusted to neutrality
In anaerobic reactor, effective stay time is 0.5-1h in high temperature anaerobic reactor, enters step 5；
Step 4: the sludge in sludge-tank being subjected to filters pressing processing using filter press, profession will be then transported to outside the sludge after filters pressing
Treatment plant；
Step 5: filtering waste liquid flows into anaerobic in low temperature reactor after high temperature anaerobic reactor and carries out Anaerobic Treatment, subsequently enters step
Rapid 6；
Step 6: the waste liquid through anaerobic in low temperature reactor enters level-one and oxygen biofilm reactor, effective stay time 5-
10h is subsequently entered in level-one aerobic reactor, effective stay time 0.5-1.5h；
Step 7: the filtering waste liquid through level-one aerobic reactor in step 6 enters second level and oxygen biofilm reactor, and in second level
And limited aeration stirring is carried out in oxygen biofilm reactor, it is aerobic anti-to subsequently enter second level by effective stay time 2-3.5h
Device is answered to be reacted；
Step 8: effective stay time is 3-4.5h in second level aerobic reactor, subsequently enters flotation tank, and in flotation tank
Water treatment flocculant is added, is discharged or recycles after being separated by solid-liquid separation.
2. a kind of alkali decrement waste water treatment process according to claim 1, which is characterized in that pH is adjusted in the step 2
To 3-4.
3. a kind of alkali decrement waste water treatment process according to claim 1, which is characterized in that step 3 high temperature is detested
The temperature of oxygen reactor is maintained at 56 ± 1 DEG C.
4. a kind of alkali decrement waste water treatment process according to claim 1, which is characterized in that low temperature is detested in the step 5
The temperature of oxygen reactor is maintained at 38 ± 1 DEG C.
5. a kind of alkali decrement waste water treatment process according to claim 1, which is characterized in that level-one is simultaneous in the step 6
Oxygen biofilm reactor and the second level in the step 7 and the bottom in oxygen biofilm reactor are equipped with several bar ditch, and every
Elastic solid filler is equipped in ditch.
6. a kind of alkali decrement waste water treatment process according to claim 1 or 5, which is characterized in that the second level and oxygen are raw
Bottom is equipped with several PVC perforated pipes in object membrane reactor, and the perforated pipe blowing air carries out limited aeration.
7. a kind of alkali decrement waste water treatment process according to claim 1, which is characterized in that the level-one and oxygen biomembrane
The dissolved oxygen control of waste liquid is 0 ~ 0.5mg/L in reactor and second level and oxygen biofilm reactor.
8. a kind of alkali decrement waste water treatment process according to claim 1, which is characterized in that the water treatment flocculant is
PAM inorganic agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811380878.7A CN109368927A (en) | 2018-11-20 | 2018-11-20 | A kind of alkali decrement waste water treatment process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380878.7A CN109368927A (en) | 2018-11-20 | 2018-11-20 | A kind of alkali decrement waste water treatment process |
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| CN109368927A true CN109368927A (en) | 2019-02-22 |
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| CN201811380878.7A Pending CN109368927A (en) | 2018-11-20 | 2018-11-20 | A kind of alkali decrement waste water treatment process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111646631A (en) * | 2020-05-06 | 2020-09-11 | 山东双融环保工程有限公司 | Beet sugar wastewater treatment system and treatment process |
| CN113024049A (en) * | 2021-04-20 | 2021-06-25 | 山东中科恒源环境工程有限公司 | Printing and dyeing comprehensive wastewater treatment process |
| CN114315043A (en) * | 2021-12-31 | 2022-04-12 | 淄博志升信息科技有限公司 | Treatment method of terylene alkali weight reduction wastewater |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111646631A (en) * | 2020-05-06 | 2020-09-11 | 山东双融环保工程有限公司 | Beet sugar wastewater treatment system and treatment process |
| CN113024049A (en) * | 2021-04-20 | 2021-06-25 | 山东中科恒源环境工程有限公司 | Printing and dyeing comprehensive wastewater treatment process |
| CN114315043A (en) * | 2021-12-31 | 2022-04-12 | 淄博志升信息科技有限公司 | Treatment method of terylene alkali weight reduction wastewater |
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Application publication date: 20190222 |