CN113620544A - Method and system for precipitation and circular treatment of sewage in filter residue tank - Google Patents
Method and system for precipitation and circular treatment of sewage in filter residue tank Download PDFInfo
- Publication number
- CN113620544A CN113620544A CN202111075007.6A CN202111075007A CN113620544A CN 113620544 A CN113620544 A CN 113620544A CN 202111075007 A CN202111075007 A CN 202111075007A CN 113620544 A CN113620544 A CN 113620544A
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- tank
- sewage
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- filter
- residue
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- 239000010865 sewage Substances 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001556 precipitation Methods 0.000 title abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract description 43
- 238000004062 sedimentation Methods 0.000 claims abstract description 41
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 10
- 230000001376 precipitating effect Effects 0.000 claims abstract description 10
- 239000008394 flocculating agent Substances 0.000 claims abstract description 9
- 238000005086 pumping Methods 0.000 claims abstract description 6
- 238000000746 purification Methods 0.000 claims abstract description 6
- 229920000742 Cotton Polymers 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 241000220317 Rosa Species 0.000 description 4
- 230000002354 daily effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000007598 dipping method Methods 0.000 description 3
- 230000037452 priming Effects 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 239000013043 chemical agent Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Images
Classifications
-
- 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
- C02F1/52—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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- 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
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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 method and a system for precipitating and circularly treating sewage in a residue filtering tank, wherein the sewage is filtered by a primary residue pouring tank and then discharged into a secondary precipitation tank; precipitating the filtered sewage for 2-3 hours in a secondary sedimentation tank; pumping the precipitated sewage into a third-stage biochemical tank through a first self-priming pump, and adding polyaluminium chloride and a flocculating agent for purification after the third-stage biochemical tank is filled with the sewage; sucking the purified sewage into a fourth-stage filter tank through a second self-priming pump for third-stage filtration; the sewage produced in daily production is treated by precipitation, biochemistry and physics, so that the sewage quality standard reaches the relevant requirements of the water quality standard of sewage drainage to cities and towns (GB31962-2015), the pollution to the environment is avoided, and the equipment investment cost is greatly reduced.
Description
Technical Field
The invention relates to the technical field of biochemistry, in particular to a method and a system for precipitating and circularly treating sewage in a filter residue pool.
Background
A large amount of sewage is generated when a sanitation enterprise cleans a road surface in daily operation every day, and the part of sewage cannot meet the relevant requirements of the water quality standard of sewage drainage into cities and towns according to the water quality detection result, and is forbidden to be directly discharged in the Ming dynasty. With the mode of traditional tertiary sediment filtration, it is difficult to reach discharge standard, wherein traditional tertiary sediment filtration has following problem:
1. the sewage sedimentation time is longer;
2. the sedimentation tank is exposed outside, and the sewage is exposed to the sun to generate peculiar smell;
3. the sewage after precipitation is directly discharged into a sewer pipeline, so that the environment is polluted.
Disclosure of Invention
Therefore, the embodiment of the invention provides a method and a system for precipitating and circularly treating sewage in a filter residue tank, which aim to solve the environmental problem in the prior art that the sewage discharge produced by daily production does not reach the standard.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
in a first aspect, a method for precipitation and circulation treatment of sewage in a residue filtering tank comprises the following steps:
the sewage is filtered by a primary deslagging tank and then discharged into a secondary sedimentation tank;
precipitating the filtered sewage for 2-3 hours in a secondary sedimentation tank;
pumping the precipitated sewage into a third-stage biochemical tank through a first self-priming pump, and adding polyaluminium chloride and a flocculating agent for purification after the third-stage biochemical tank is filled with the sewage;
and sucking the purified sewage into a four-stage filter tank through a second self-priming pump for three-stage filtration.
Preferably, when the three-stage biochemical tank purifies the sewage, the circulating treatment pump pumps and discharges the sewage in the three-stage biochemical tank in a circulating manner.
Preferably, the whole process of purifying the sewage in the three-stage biochemical pond needs at least 20 minutes.
In a second aspect, the sewage sedimentation and circulation treatment system for the residue filtering tank comprises a primary residue pouring tank, a secondary sedimentation tank, a tertiary biochemical tank and a quaternary filtration tank, wherein a filter screen is arranged on the side surface of the primary residue pouring tank connected with the secondary sedimentation tank, and a first self-sucking pump is installed in the tertiary biochemical tank; a second self-priming pump is installed in the four-stage filter tank, a filter box is installed in the four-stage filter tank, and the filter box is arranged in a stepped manner;
the primary deslagging tank is used for collecting sewage in a centralized manner;
the secondary sedimentation tank is used for sedimentating the filtered sewage for 2-3 hours;
the three-stage biochemical tank is used for purifying sewage by adding polyaluminium chloride and a flocculating agent;
the four-stage filter tank is used for carrying out three-stage filtration on the purified sewage;
the filter screen is used for filtering sewage;
the first self-sucking pump is used for sucking the precipitated sewage into the three-stage biochemical tank;
the second self-priming pump is used for sucking the purified sewage into the four-stage filtering tank;
the filter box is used for three-stage filtration.
Preferably, a circulating treatment pump is further arranged in the third-stage biochemical pool.
Preferably, a ball float valve is further arranged in the third-stage biochemical pool and connected with the second self-priming pump.
Preferably, the filter box is an upper-immersed stainless steel filter box.
Preferably, the filter box is internally provided with filter cotton.
Preferably, the secondary sedimentation tank is provided with filter screen cotton.
Preferably, the position where the secondary sedimentation tank is communicated with the tertiary biochemical tank is provided with filter screen cotton.
The invention has at least the following beneficial effects: the invention provides a method and a system for precipitating and circularly treating sewage in a residue filtering tank, wherein the sewage is filtered by a primary residue pouring tank and then discharged into a secondary precipitation tank; precipitating the filtered sewage for 2-3 hours in a secondary sedimentation tank; pumping the precipitated sewage into a third-stage biochemical tank through a first self-priming pump, and adding polyaluminium chloride and a flocculating agent for purification after the third-stage biochemical tank is filled with the sewage; sucking the purified sewage into a fourth-stage filter tank through a second self-priming pump for third-stage filtration; the sewage produced in daily production is treated by precipitation, biochemistry and physics, so that the sewage quality standard reaches the relevant requirements of the water quality standard of sewage drainage to cities and towns (GB31962-2015), the pollution to the environment is avoided, and the equipment investment cost is greatly reduced.
Drawings
In order to more clearly illustrate the prior art and the present invention, the drawings which are needed to be used in the description of the prior art and the embodiments of the present invention will be briefly described. It should be apparent that the drawings in the following description are merely exemplary, and that other drawings may be derived from the provided drawings by those of ordinary skill in the art without inventive effort.
The structures, proportions, sizes, and other dimensions shown in the specification are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, and it is to be understood that all such modifications, changes in proportions, or alterations in size which do not affect the efficacy or objectives of the invention are not to be seen as within the scope of the present invention.
Fig. 1 is a flow chart of a method for precipitating and circularly treating sewage in a residue filtering tank according to an embodiment of the present invention;
fig. 2 is a structural diagram of a residue tank sewage precipitation and circulation treatment system provided by an embodiment of the present invention.
Description of reference numerals:
1-first-stage deslagging pool; 2-a secondary sedimentation tank; 3-a third-level biochemical pool; 4-a fourth-stage filter tank; 5-filter screen cotton; 6-a first self-priming pump; 7-circulation treatment pump; 8-a second self-priming pump; 9-a ball float valve; 10-a water outlet; 11-a water outlet; 12-a filter box; 13-a filter screen.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the description of the present invention, "a plurality" means two or more unless otherwise specified. The terms "first," "second," "third," "fourth," and the like in the description and claims of the present invention and in the above-described drawings (if any) are intended to distinguish between referenced items. For a scheme with a time sequence flow, the term expression does not need to be understood as describing a specific sequence or a sequence order, and for a scheme of a device structure, the term expression does not have distinction of importance degree, position relation and the like.
Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements specifically listed, but may include other steps or elements not expressly listed that are inherent to such process, method, article, or apparatus or that are added to a further optimization scheme based on the present inventive concept.
Referring to fig. 1, an embodiment of the present invention provides a method for settling and recycling sewage in a residue tank, including:
s1: the sewage is filtered by a primary deslagging tank and then discharged into a secondary sedimentation tank;
specifically, sewage generated in daily production operation is intensively discharged into a primary deslagging tank, and impurities in the sewage are separated by a filter screen and then discharged into a secondary sedimentation tank.
S2: precipitating the filtered sewage for 2-3 hours in a secondary sedimentation tank;
specifically, the secondary sedimentation tank sediments the filtered sewage for 2-3 hours, and then separates the mud in the sewage at the bottom of the sedimentation tank.
S3: pumping the precipitated sewage into a third-stage biochemical tank through a first self-priming pump, and adding polyaluminium chloride and a flocculating agent for purification after the third-stage biochemical tank is filled with the sewage;
specifically, after sewage is filled in the three-level biochemical tank, chemical agents are added in the biochemical tank: polyaluminium chloride and flocculant through biochemical treatment to purify water. Because sewage can not flow naturally in the pond, so need use the circulation treatment pump to draw, discharge the sewage in the pond again, produce the effect of flowing sewage, reach endless effect, make chemical agent polyaluminium chloride, flocculating agent effect can obtain the maximize. The total time for the decontamination process is at least 20 minutes.
S4: and sucking the purified sewage into a four-stage filter tank through a second self-priming pump for three-stage filtration.
Specifically, sewage after the treatment of the three-stage biochemical tank is absorbed into the upper-dipping stainless steel filter box, and is subjected to three-stage filtration again through the stepped upper-dipping stainless steel filter box, and then is discharged to a sewer pipeline after being filtered. At this time, the sewage is clear and has no impurities.
Referring to fig. 2, an embodiment of the present invention provides a residue tank sewage sedimentation and circulation treatment system, including a first-stage residue pouring tank 1, a second-stage sedimentation tank 2, a third-stage biochemical tank 3 and a fourth-stage filtration tank 4, wherein a filter screen 13 is arranged on a side surface of the first-stage residue pouring tank 1 connected with the second-stage sedimentation tank 2, and a set of first self-priming pumps 6 of 12.5m/h specification is installed in the third-stage biochemical tank 3; a set of 4.5m/h second self-priming pumps 8 is arranged in the four-stage filtering tank 4, a filtering box 12 is arranged in the four-stage filtering tank 4, and the filtering box 12 is arranged in a stepped manner; the primary deslagging tank 1 is used for collecting sewage in a centralized manner; the secondary sedimentation tank 2 is used for sedimentating the filtered sewage for 2-3 hours; the third-stage biochemical tank 3 is used for purifying sewage by adding polyaluminium chloride and a flocculating agent through a water outlet 11; the four-stage filtering tank 4 is used for carrying out three-stage filtering on the purified sewage; the filter screen 13 is used for filtering sewage; the first self-sucking pump 6 is used for pumping the precipitated sewage into the third-stage biochemical tank 3; the second self-priming pump 8 is used for sucking the purified sewage into the four-stage filtering tank 4; the filter tank 12 is used for three-stage filtration.
Still be equipped with 4kW circulation treatment pump 7 and ball-cock assembly 9 in the tertiary biochemical pond 3, ball-cock assembly 9 is connected with second self priming pump 8. The ball-cock assembly 9 is used for monitoring the sewage volume in the tertiary biochemical pond 3, and after the sewage in the tertiary biochemical pond 3 finishes through the filtration of level four filtering ponds 4, the sewage after using first self priming pump 6 to deposit the secondary sedimentation tank 2 again extracts tertiary biochemical pond 3.
The rose box 13 is for going up dipping type stainless steel rose box, is equipped with the filter pulp in the rose box 13, and rose box 12 is cascaded setting, can reach tertiary filter effect.
Be provided with the filter screen cotton 5 in the second grade sedimentation tank 2, come further to filter impurity, second grade sedimentation tank 2 also is equipped with filter screen cotton 5 with the communicating position in tertiary biochemical pond 3, prevents that the impurity that does not filter from getting into tertiary biochemical pond 3 through first self priming pump 6. After the sewage is filtered layer by layer, the sewage is discharged through a water outlet 10 in the four-stage filter tank 4.
The above specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
All the technical features of the above embodiments can be arbitrarily combined (as long as there is no contradiction between the combinations of the technical features), and for brevity of description, all the possible combinations of the technical features in the above embodiments are not described; these examples, which are not explicitly described, should be considered to be within the scope of the present description.
The present invention has been described in considerable detail by the general description and the specific examples given above. It should be noted that it is obvious that several variations and modifications can be made to these specific embodiments without departing from the inventive concept, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for settling and circularly treating sewage in a filter residue pool is characterized by comprising the following steps:
the sewage is filtered by a primary deslagging tank and then discharged into a secondary sedimentation tank;
precipitating the filtered sewage for 2-3 hours in a secondary sedimentation tank;
pumping the precipitated sewage into a third-stage biochemical tank through a first self-priming pump, and adding polyaluminium chloride and a flocculating agent for purification after the third-stage biochemical tank is filled with the sewage;
and sucking the purified sewage into a four-stage filter tank through a second self-priming pump for three-stage filtration.
2. The residue tank sewage sedimentation and circulation treatment method according to claim 1, wherein when the three-stage biochemical tank purifies the sewage, the circulation treatment pump circularly extracts and discharges the sewage in the three-stage biochemical tank.
3. The method for sedimentation and recycling of sewage in a residue tank according to claim 1, wherein the whole process of purification of the sewage in the third-stage biochemical tank requires at least 20 minutes.
4. A sewage sedimentation and circulation treatment system of a residue filtering tank is characterized by comprising a primary residue pouring tank, a secondary sedimentation tank, a tertiary biochemical tank and a quaternary filtration tank, wherein a filter screen is arranged on the side surface of the primary residue pouring tank connected with the secondary sedimentation tank, and a first self-sucking pump is arranged in the tertiary biochemical tank; a second self-priming pump is installed in the four-stage filter tank, a filter box is installed in the four-stage filter tank, and the filter box is arranged in a stepped manner;
the primary deslagging tank is used for collecting sewage in a centralized manner;
the secondary sedimentation tank is used for sedimentating the filtered sewage for 2-3 hours;
the three-stage biochemical tank is used for purifying sewage by adding polyaluminium chloride and a flocculating agent;
the four-stage filter tank is used for carrying out three-stage filtration on the purified sewage;
the filter screen is used for filtering sewage;
the first self-sucking pump is used for sucking the precipitated sewage into the three-stage biochemical tank;
the second self-priming pump is used for sucking the purified sewage into the four-stage filtering tank;
the filter box is used for three-stage filtration.
5. The residue filtering tank sewage sedimentation and circulation treatment system according to claim 4, wherein a circulation treatment pump is further arranged in the third-stage biochemical tank.
6. The residue filtering tank sewage sedimentation and circulation treatment system according to claim 4, wherein a ball float valve is further arranged in the third-stage biochemical tank, and the ball float valve is connected with the second self-priming pump.
7. The residue filtering pond sewage sedimentation and recycling treatment system according to claim 4, wherein the filter tank is an upper-immersed stainless steel filter tank.
8. The residue filtering pond sewage sedimentation and circulation treatment system according to claim 4, wherein filter cotton is arranged in the filter box.
9. The residue filtering pool sewage sedimentation and circulation treatment system according to claim 4, wherein a filter screen cotton is arranged in the secondary sedimentation pool.
10. The residue filtering pond sewage sedimentation and circulation treatment system according to claim 4, wherein a filtering net cotton is arranged at the position where the secondary sedimentation pond is communicated with the tertiary biochemical pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111075007.6A CN113620544A (en) | 2021-09-14 | 2021-09-14 | Method and system for precipitation and circular treatment of sewage in filter residue tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111075007.6A CN113620544A (en) | 2021-09-14 | 2021-09-14 | Method and system for precipitation and circular treatment of sewage in filter residue tank |
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| Publication Number | Publication Date |
|---|---|
| CN113620544A true CN113620544A (en) | 2021-11-09 |
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| CN202111075007.6A Pending CN113620544A (en) | 2021-09-14 | 2021-09-14 | Method and system for precipitation and circular treatment of sewage in filter residue tank |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160106333A (en) * | 2015-03-02 | 2016-09-12 | 이금선 | WasteWater High-Class Treatment System to remove High-Density Pollutant and Method thereof |
| CN108439733A (en) * | 2018-06-11 | 2018-08-24 | 淄博职业学院 | A kind of petrochemical effluent comprehensive purifying equipment and its application method |
| CN209161674U (en) * | 2018-11-01 | 2019-07-26 | 贵州华源环保科技发展有限公司 | A kind of small-sized domestic sewage processing system |
| CN210945136U (en) * | 2019-11-01 | 2020-07-07 | 上海新浦特种助剂有限公司 | Flocculation structure for removing phosphorus from high-phosphorus wastewater |
| CN213202618U (en) * | 2020-06-09 | 2021-05-14 | 沈阳环景生态工程有限公司 | Water circulation treatment device based on industrial sewage reuse |
-
2021
- 2021-09-14 CN CN202111075007.6A patent/CN113620544A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160106333A (en) * | 2015-03-02 | 2016-09-12 | 이금선 | WasteWater High-Class Treatment System to remove High-Density Pollutant and Method thereof |
| CN108439733A (en) * | 2018-06-11 | 2018-08-24 | 淄博职业学院 | A kind of petrochemical effluent comprehensive purifying equipment and its application method |
| CN209161674U (en) * | 2018-11-01 | 2019-07-26 | 贵州华源环保科技发展有限公司 | A kind of small-sized domestic sewage processing system |
| CN210945136U (en) * | 2019-11-01 | 2020-07-07 | 上海新浦特种助剂有限公司 | Flocculation structure for removing phosphorus from high-phosphorus wastewater |
| CN213202618U (en) * | 2020-06-09 | 2021-05-14 | 沈阳环景生态工程有限公司 | Water circulation treatment device based on industrial sewage reuse |
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Application publication date: 20211109 |
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