CN109574380A - A kind of sewage treatment process - Google Patents
A kind of sewage treatment process Download PDFInfo
- Publication number
- CN109574380A CN109574380A CN201811395530.5A CN201811395530A CN109574380A CN 109574380 A CN109574380 A CN 109574380A CN 201811395530 A CN201811395530 A CN 201811395530A CN 109574380 A CN109574380 A CN 109574380A
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- CN
- China
- Prior art keywords
- sewage
- treatment process
- sewage treatment
- microorganism formulation
- process according
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
-
- 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
- C02F3/02—Aerobic 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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of sewage treatment process, comprising the following steps: a, dredging cut dirty, watercourse aeration；B, flocculation sedimentation；C, biofilm filtration；D, microorganism formulation is sterilized.Sewage treatment process sewage of the invention through aerobic tank precipitate in grid layer by various bulky grain solids pollute remove, blocky condensate is formed after flocculant reaction precipitating, decomposition and metabolic conversion are carried out to organic matter under microbial action on biomembrane, make the BOD5 in sewage, the pollution removal rate such as CODc reaches 90% or more, ensure that sewage is sufficiently cleaned up, wastewater disinfection sterilization treatment is carried out by the microorganism formulation of sedimentation basin, enable sewage qualified discharge, rational deployment, purifying water body pollution is effectively repaired in comprehensive treatment.
Description
Technical field:
The present invention relates to technical field of sewage, in particular to a kind of sewage treatment process.
Background technique:
Water pollutant is related to toxic organic pollutant, heavy metal and the nitrogen and phosphorus element of water eutrophication is caused to be sought
Substance is supported, influences industrial water and DRINKING WATER safety directly, indirectly.
Traditional water pollution control method is mainly physics and chemical method, although physical chemistry method has certain effect,
But all there is big to environmental disturbances, operating cost is high, is easy to produce the disadvantages of secondary pollution.
Summary of the invention:
The present invention provides a kind of sewage treatment process, solve in the prior art that environmental disturbances are big, operating cost is high
Problem.
Technology solution of the invention is as follows: a kind of sewage treatment process, includes following steps:
A, dredging cuts dirty, watercourse aeration: sewage being introduced aerobic tank precipitating, dissolved oxygen concentration is 1~3mg/L in sewage；
B, flocculation sedimentation；The primary water obtained by step a is introduced into reaction tank, flocculation is added in reaction tank
Agent, flocculant input amount are 50mg~150mg/L, and reaction precipitating forms blocky condensate after 30 minutes~45 minutes；
C, the primary water obtained by step b biofilm filtration: is introduced into the aerobic pond MBBR, the aerobic pond MBBR
Interior to be filled with floating stuffing, dissolved oxygen concentration is 5~10mg/L in reaction solution；
D, microorganism formulation is sterilized: the liquid obtained by step c biofilm filtration being introduced sedimentation basin, in sedimentation basin
Interior addition microorganism formulation sterilization.
Preferably, the aerobic tank in the step a is interior equipped with grid layer.
Preferably, it is 100mg~200mg/L that the flocculant in the step b, which launches concentration,.
Preferably, the floating stuffing usage amount in the step c is 15g~18g/L.
Preferably, being equipped with vent line in the aerobic pond MBBR in the step c.
Preferably, the dispensing concentration of microorganism formulation is 350mg~700mg/L in the step d.
The beneficial effects of the present invention are: sewage through aerobic tank precipitate in grid layer various bulky grain solids are polluted
After removal, into reaction tank, sewage forms blocky condensate after flocculant reaction precipitating, and primary water enters aerobic MBBR
Pond, microorganism decompose to organic matter and metabolic conversion under the effect of the oxygen on biomembrane, makes the BOD5 in sewage,
The pollution removal rate such as CODc reaches 90% or more, and since microorganism is continuously increased in biomembrane, biomembrane is also constantly thickened, and is reached
To certain thickness, biomembrane gradually falls off, and grows new biomembrane again, so that it is guaranteed that sewage is sufficiently cleaned up, finally by heavy
The microorganism formulation in shallow lake pond carries out wastewater disinfection sterilization treatment, enables sewage qualified discharge, and sewage treatment process of the present invention closes
Purifying water body pollution is effectively repaired in removing the work office, comprehensive treatment.
Specific embodiment:
To a kind of sewage treatment process of the invention, it is described further.
Embodiment 1
A kind of sewage treatment process, includes following steps: a, dredging cut dirty, watercourse aeration: sewage is introduced aerobic tank
It precipitates, dissolved oxygen concentration is 2mg/L in sewage；
B, flocculation sedimentation；The primary water obtained by step a is introduced into reaction tank, flocculation is added in reaction tank
Agent, flocculant input amount are 100mg/L, and reaction precipitating forms blocky condensate after forty minutes；
C, the primary water obtained by step b biofilm filtration: is introduced into the aerobic pond MBBR, the aerobic pond MBBR
Interior to be filled with floating stuffing, dissolved oxygen concentration is 8mg/L in reaction solution；
D, microorganism formulation is sterilized: the liquid obtained by step c biofilm filtration being introduced sedimentation basin, in sedimentation basin
Interior addition microorganism formulation sterilization.
Further, grid layer is equipped in the aerobic tank in step a.
Further, it is 150mg/L that the flocculant in step b, which launches concentration,.
Further, the floating stuffing usage amount in step c is 18g/L.
Further, vent line is installed in the aerobic pond MBBR in step c.
Further, the dispensing concentration of microorganism formulation is 600mg/L in step d.
Embodiment 2
A kind of sewage treatment process, includes following steps: a, dredging cut dirty, watercourse aeration: sewage is introduced aerobic tank
It precipitates, dissolved oxygen concentration is 1.5mg/L in sewage；
B, flocculation sedimentation；The primary water obtained by step a is introduced into reaction tank, flocculation is added in reaction tank
Agent, flocculant input amount are 80mg/L, and reaction precipitating forms blocky condensate after forty minutes；
C, the primary water obtained by step b biofilm filtration: is introduced into the aerobic pond MBBR, the aerobic pond MBBR
Interior to be filled with floating stuffing, dissolved oxygen concentration is 5mg/L in reaction solution；
D, microorganism formulation is sterilized: the liquid obtained by step c biofilm filtration being introduced sedimentation basin, in sedimentation basin
Interior addition microorganism formulation sterilization.
Further, grid layer is equipped in the aerobic tank in step a.
Further, it is 12mg/L that the flocculant in step b, which launches concentration,.
Further, the floating stuffing usage amount in step c is 15g/L.
Further, vent line is installed in the aerobic pond MBBR in step c.
Further, the dispensing concentration of microorganism formulation is 400mg/L in step d.
The working principle of the invention is: sewage through aerobic tank precipitate in grid layer by various bulky grain solids pollution go
After removing, into reaction tank, sewage forms blocky condensate after flocculant reaction precipitating, and primary water enters the aerobic pond MBBR,
Microorganism carries out decomposition and metabolic conversion to organic matter under the effect of the oxygen on biomembrane, makes the BOD5 in sewage, CODc
Reach 90% or more Deng pollution removal rate, since microorganism is continuously increased in biomembrane, biomembrane is also constantly thickened, and reaches one
Determine thickness, biomembrane gradually falls off, and new biomembrane is grown again, so that it is guaranteed that sewage is sufficiently cleaned up, finally by sedimentation basin
Microorganism formulation carry out wastewater disinfection sterilization treatment, enable sewage qualified discharge.
The foregoing is merely presently preferred embodiments of the present invention, and those of ordinary skill in the art are not making creative labor
Every other embodiment obtained under the premise of dynamic, should fall within the scope of the present invention.
Claims (6)
1. a kind of sewage treatment process, which is characterized in that include following steps:
A, dredging cuts dirty, watercourse aeration: sewage being introduced aerobic tank precipitating, dissolved oxygen concentration is 1~3mg/L in sewage；
B, flocculation sedimentation: the primary water obtained by step a being introduced into reaction tank, flocculant is added in reaction tank, is wadded a quilt with cotton
Solidifying agent input amount is 50mg~150mg/L, and reaction precipitating forms blocky condensate after 30 minutes~45 minutes；
C, biofilm filtration: the primary water obtained by step b is introduced into the aerobic pond MBBR, is filled in the aerobic pond MBBR
There is floating stuffing, dissolved oxygen concentration is 5~10mg/L in reaction solution；
D, microorganism formulation is sterilized: the liquid obtained by step c biofilm filtration being introduced sedimentation basin, is added in sedimentation basin
Microorganism formulation sterilization.
2. a kind of sewage treatment process according to claim 1, it is characterised in that: set in the aerobic tank in the step a
There is grid layer.
3. a kind of sewage treatment process according to claim 1, it is characterised in that: the flocculant in the step b is launched
Concentration is 100mg~200mg/L.
4. a kind of sewage treatment process according to claim 1, it is characterised in that: the floating stuffing in the step c makes
Dosage is 15g~18g/L.
5. a kind of sewage treatment process according to claim 1, it is characterised in that: in the step c in the aerobic pond MBBR
Vent line is installed.
6. a kind of sewage treatment process according to claim 1, it is characterised in that: microorganism formulation in the step d
Dispensing concentration is 350mg~700mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811395530.5A CN109574380A (en) | 2018-11-22 | 2018-11-22 | A kind of sewage treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811395530.5A CN109574380A (en) | 2018-11-22 | 2018-11-22 | A kind of sewage treatment process |
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| Publication Number | Publication Date |
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| CN109574380A true CN109574380A (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811395530.5A Pending CN109574380A (en) | 2018-11-22 | 2018-11-22 | A kind of sewage treatment process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113480082A (en) * | 2021-04-25 | 2021-10-08 | 内蒙古东华能源有限责任公司 | Environment-friendly process for treating coal chemical industry sewage |
| CN114133107A (en) * | 2021-11-28 | 2022-03-04 | 复信(江苏)环境科技有限公司 | VOCs sewage treatment process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113480082A (en) * | 2021-04-25 | 2021-10-08 | 内蒙古东华能源有限责任公司 | Environment-friendly process for treating coal chemical industry sewage |
| CN114133107A (en) * | 2021-11-28 | 2022-03-04 | 复信(江苏)环境科技有限公司 | VOCs sewage treatment process |
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Application publication date: 20190405 |
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