CN208949094U - Municipal administration sewage sludge synthesizes processing apparatus - Google Patents
Municipal administration sewage sludge synthesizes processing apparatus Download PDFInfo
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- CN208949094U CN208949094U CN201821541365.5U CN201821541365U CN208949094U CN 208949094 U CN208949094 U CN 208949094U CN 201821541365 U CN201821541365 U CN 201821541365U CN 208949094 U CN208949094 U CN 208949094U
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- sludge
- sewage
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- tank
- broken wall
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- 239000010801 sewage sludge Substances 0.000 title abstract 2
- 239000010865 sewage Substances 0.000 claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 239000010802 sludge Substances 0.000 claims description 118
- 238000004062 sedimentation Methods 0.000 claims description 37
- 239000007788 liquid Substances 0.000 claims description 26
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 20
- 239000000126 substance Substances 0.000 claims description 19
- 239000007787 solid Substances 0.000 claims description 10
- 239000010841 municipal wastewater Substances 0.000 claims description 9
- 230000018044 dehydration Effects 0.000 claims description 8
- 238000006297 dehydration reaction Methods 0.000 claims description 8
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 20
- 239000004566 building material Substances 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 abstract description 7
- 239000008394 flocculating agent Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000002738 chelating agent Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 239000006228 supernatant Substances 0.000 description 6
- 239000005416 organic matter Substances 0.000 description 5
- 239000003337 fertilizer Substances 0.000 description 4
- 238000005189 flocculation Methods 0.000 description 4
- 230000016615 flocculation Effects 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- 102000001999 Transcription Factor Pit-1 Human genes 0.000 description 3
- 108010040742 Transcription Factor Pit-1 Proteins 0.000 description 3
- 239000002361 compost Substances 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model provides a municipal administration sewage sludge synthesizes processing apparatus, to adding heavy metal catching agent and flocculating agent in the sewage after the processing, get rid of the heavy metal that just sinks in the sewage, reduce just heavy pond play water SS, carry out the broken wall to just sinking mud again and handle, building materials raw materials utilization is made to just sinking mud after the processing, the surplus mud in two heavy ponds directly carries out resource land use, the mixed mud heavy metal content who solves municipal administration sewage treatment plant is high, can't directly carry out the land use, the processing degree of difficulty is big, the problem that the treatment cost is high.
Description
Technical field
The utility model relates to sludge treatment field more particularly to a kind of municipal wastewater sludge joint disposal devices.
Background technique
Primary sedimentation tank and secondary settling tank can be all arranged in general municipal sewage plant, and primary sedimentation tank is precipitable in sewage for removing
Object and floating material, mitigate the load of subsequent processing facility, and the sludge that primary sedimentation tank generates is primary sludge, primary sludge sand content
Greatly, content of beary metal is high, the content of organic matter is relatively small；Secondary settling tank is used to precipitate the sludge of biochemical wastewater treatment growth, and two is heavy
The sludge that pond generates is excess sludge, and for excess sludge compared with primary sludge, sludge output is big, and content of beary metal is lower, organic matter
Content is higher.For domestic general municipal sewage plant by primary sludge and excess sludge merging treatment, this results in sludge sand grains, again
Metal, content of organics are all very high, and sludge is caused to be unable to direct utilization, increase processing cost and processing difficulty.It is external
Sewage treatment plant is also mostly by primary sludge and secondary sludge merging treatment, and only a few municipal sewage plant is by primary sludge and residue
Sludge is separately handled, but primary sedimentation tank spoil disposal is not in time, is caused some primary sludges to enter two by waste water processes and is sunk
Pond is mixed with secondary sludge.
Anaerobism is passed through in the water inlet of municipal sewage plant, and the heavy metal in water is mostly stabilized, and is deposited to primary sludge
In, but the total solid suspended matter of primary sedimentation tank water outlet is generally higher, many heavy metal precipitation objects flow into dirt with sewage
In the subsequent process of water process, also, since primary sedimentation tank spoil disposal is not diligent, the redissolution of heavy metal is also resulted in.In short, primary sedimentation tank goes out
The content of beary metal and SS of water influence the shale of secondary sludge.
Summary of the invention
The utility model provides a kind of municipal wastewater sludge joint disposal device, and the mixing for municipal sewage plant is dirty
Mud content of beary metal is high, can not directly carry out land use, and processing difficulty is big, the high problem of processing cost, using will be in sewage
Heavy metal be trapped into primary sludge, then to yield it is less primary sludge processing after resource utilization so that secondary sludge
Heavy metal is less, can directly land use method, improve sludge resourcebility producing level, reduce Treatment of Sludge cost and
Processing difficulty.
The technical solution adopted in the utility model is:
A kind of municipal wastewater sludge joint disposal device, comprising: sewage pretreating device；Agent for capturing mixing pit, and it is described
Sewage pretreating device is connected；Agent for capturing chemicals dosing plant is connected with the agent for capturing mixing pit；Flocculant mixing tank, with
The agent for capturing mixing pit is connected；Flocculant chemicals dosing plant is connected with the flocculant mixing tank；Primary sedimentation tank, and it is described
Flocculant mixing tank is connected；Primary sludge reservoir is connected with the primary sedimentation tank；Biochemical sewage system, with the primary sedimentation tank
It is connected；Secondary settling tank is connected with the biochemical sewage system；Excess sludge reservoir is connected with the secondary settling tank；After sewage
Processing unit is connected with the secondary settling tank；Broken wall system is connected with the primary sludge reservoir；Dehydration device, and it is described
Broken wall system is connected with the biochemical sewage system.
Preferably, the broken wall system includes: reactor tank, is connected with the primary sludge reservoir；NaOH chemicals dosing plant,
It is connected with the reactor tank；Equipment for separating liquid from solid is connected with the reactor tank；In clear liquid and device, with the solid-liquid point
It is connected from device with biochemical sewage system；Clear liquid neutralizer chemicals dosing plant is connected with the clear liquid with device；In sludge
And device, it is connected with the equipment for separating liquid from solid and dehydration device；Sludge neutralizer chemicals dosing plant, and in the sludge and fills
It sets and is connected.
A kind of municipal wastewater sludge joint disposal method, including sewage disposal stage and Treatment of Sludge stage, feature exist
In having follow steps:
Sewage disposal stage:
(a) primary sludge generates the stage: heavy metal chelating agent and flocculant being added into the sewage after pre-treatment, instead
Sewage after answering is precipitated in primary sedimentation tank, the mesh for reaching the heavy metal in the first heavy sewage of removal, reducing primary sedimentation tank water outlet SS
, residence time < of the primary sludge in primary sedimentation tank 36 hours；
(b) secondary sludge generates the stage: the supernatant of primary sedimentation tank is after biochemical system is handled, into sedimentation in secondary sedimentation tank, shape
At excess sludge, qualified discharge after second pond supernatant is post-treated；
The Treatment of Sludge stage:
(c) processing of primary sludge: broken wall treatment is carried out to primary sludge, destroys microbial cell structure, reduces sludge
The content of organic matter in solid phase, the primary sludge after broken wall make the utilization of building materials raw material resourcesization after being dehydrated, and the water of abjection is back to
The biochemical system of sewage treatment is further processed；
(d) processing of excess sludge: excess sludge directly carries out land resource utilization.
Preferably, the broken wall treatment in the step (c) refers to, microwave frequency measurment, ultraviolet light broken wall, grinding broken wall, high speed
Shear one of broken wall, pyrohydrolysis broken wall.
Preferably, the broken wall treatment in the step (c) refers to, NaOH solution is added into primary sludge, until pH be 8 ~
11, broken wall reaction is carried out, the reaction time is 10 ~ 30min, is separated by solid-liquid separation, and the sludge after separation is neutralized, subsequent de-
Water, the supernatant after separation enter in sewage treatment biochemical system after neutralizing.
Preferably, the temperature of the broken wall reaction is 40 DEG C ~ 80 DEG C.
Preferably, the recycling land use in the step (d) refers to, using biogas residue as fertilizer after compost, anaerobic digestion
Expect, liquid fertilizer is made.
The utility model has the following beneficial effects:
1, ensure that the content of beary metal of secondary sludge is up to standard.Primary sedimentation tank water inlet has stabilization containing sulphion for anaerobic state
Heavy metal chelating agent and flocculation aid are added in primary sedimentation tank, further helps in heavy metal ion and sinks just for the effect of heavy metal
Precipitating in pond ensure that content of beary metal is extremely low in secondary sludge so that primary sedimentation tank water outlet content of beary metal is extremely low.
2, the primary sludge containing heavy metal is individually handled.Compared with secondary sludge, primary sludge yield is less, right
The more primary sludge containing heavy metal is individually handled, and cost of disposal and processing difficulty are greatlyd save.
3, the metal in primary sludge exists mostly in the form of metal sulfide, and property is stablized, and is difficult to remove it, this is practical
Novel to carry out broken wall treatment using to primary sludge, the clear liquid after broken wall enters biochemical system as carbon source, the sludge after broken wall
The middle content of organic matter is extremely low, can make the utilization of building materials raw material resourcesization after being dehydrated.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of schematic device of municipal sludge joint disposal of the utility model；
Fig. 2 is a kind of another schematic device of municipal sludge joint disposal of the utility model.
In figure: 1- sewage pretreating device, 2- agent for capturing mixing pit, 3- agent for capturing chemicals dosing plant, 4- flocculant mixing tank,
5- flocculant chemicals dosing plant, 6- primary sedimentation tank, 7- primary sludge reservoir, 8- biochemical sewage system, 9- secondary settling tank, 10- excess sludge
Reservoir, 11- sewage after-treatment device, 12- broken wall system, 13- dehydration device, 14- reactor tank, 15- NaOH chemicals dosing plant, 16-
Equipment for separating liquid from solid, in 17- clear liquid and device, 18- clear liquid neutralizer chemicals dosing plant, in 19- sludge and device, in 20- sludge
With agent chemicals dosing plant.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
The technical solution adopted in the utility model is:
A kind of municipal wastewater sludge joint disposal device, comprising: sewage pretreating device 1；Agent for capturing mixing pit 2, with institute
Sewage pretreating device 1 is stated to be connected；Agent for capturing chemicals dosing plant 3 is connected with the agent for capturing mixing pit 2；Flocculant mixing
Pond 4 is connected with the agent for capturing mixing pit 2；Flocculant chemicals dosing plant 5 is connected with the flocculant mixing tank 4；It is just heavy
Pond 6 is connected with the flocculant mixing tank 4；Primary sludge reservoir 7 is connected with the primary sedimentation tank 6；Biochemical sewage system
8, it is connected with the primary sedimentation tank 6；Secondary settling tank 9 is connected with the biochemical sewage system 8；Excess sludge reservoir 10, and it is described
Secondary settling tank 9 is connected；Sewage after-treatment device 11 is connected with the secondary settling tank 9；Broken wall system 12, with the primary sludge
Reservoir 7 is connected；Dehydration device 13 is connected with the broken wall system 12 and the biochemical sewage system 8.
Preferably, the broken wall system 12 includes: reactor tank 14, is connected with the primary sludge reservoir 7；NaOH dosing
Device 15 is connected with the reactor tank 14；Equipment for separating liquid from solid 16 is connected with the reactor tank 14；In clear liquid and device
17, it is connected with the equipment for separating liquid from solid 16 and biochemical sewage system 8；Clear liquid neutralizer chemicals dosing plant 18, with the clear liquid
Device 17 is neutralized to be connected；With device 19 in sludge, it is connected with the equipment for separating liquid from solid 16 and dehydration device 13；In sludge
With agent chemicals dosing plant 20, it is connected with the sludge with device 19.
A kind of municipal wastewater sludge joint disposal method, including sewage disposal stage and Treatment of Sludge stage, feature exist
In having follow steps:
Sewage disposal stage:
(a) primary sludge generates the stage: heavy metal chelating agent and flocculant being added into the sewage after pre-treatment, instead
Sewage after answering is precipitated in primary sedimentation tank, the mesh for reaching the heavy metal in the first heavy sewage of removal, reducing primary sedimentation tank water outlet SS
, residence time < of the primary sludge in primary sedimentation tank 36 hours；
(b) secondary sludge generates the stage: the supernatant of primary sedimentation tank is after biochemical system is handled, into sedimentation in secondary sedimentation tank, shape
At excess sludge, qualified discharge after second pond supernatant is post-treated；
The Treatment of Sludge stage:
(c) processing of primary sludge: broken wall treatment is carried out to primary sludge, destroys microbial cell structure, reduces sludge
The content of organic matter in solid phase, the primary sludge after broken wall make the utilization of building materials raw material resourcesization after being dehydrated, and the water of abjection is back to
The biochemical system of sewage treatment is further processed；
(d) processing of excess sludge: excess sludge directly carries out land resource utilization.
Preferably, the broken wall treatment in the step (c) refers to, microwave frequency measurment, ultraviolet light broken wall, grinding broken wall, high speed
Shear one of broken wall, pyrohydrolysis broken wall.
Preferably, the broken wall treatment in the step (c) refers to, NaOH solution is added into primary sludge, until pH be 8 ~
11, broken wall reaction is carried out, the reaction time is 10 ~ 30min, is separated by solid-liquid separation, and the sludge after separation is neutralized, subsequent de-
Water, the supernatant after separation enter in sewage treatment biochemical system after neutralizing.
Preferably, the temperature of the broken wall reaction is 40 DEG C ~ 80 DEG C.
Preferably, the recycling land use in the step (d) refers to, using biogas residue as fertilizer after compost, anaerobic digestion
Expect, liquid fertilizer is made.
Embodiment 1
Heavy metal chelating agent is added into the primary sedimentation tank of sewage plant, dosage 50mg/L adds flocculation aid PAM, adds
Dose is 10 mg/L, and residence time of the primary sludge in primary sedimentation tank is 36h, carries out microwave frequency measurment processing to primary sludge, breaks
Treated that sludge is dehydrated for wall, and the water of abjection enters biochemical sewage system, and sludge is utilized as building materials raw material, after taking dehydration
Primary sludge and secondary sludge analyzed, as a result following (unit: mg/kg):
Embodiment 2
Heavy metal chelating agent is added into the primary sedimentation tank of sewage plant, dosage 150mg/L adds flocculation aid PAM, adds
Dose is 15 mg/L, and residence time of the primary sludge in primary sedimentation tank is for 24 hours, NaOH solution to be added into primary sludge, until pH
It is 8,80 DEG C is heated to sludge solutions, carry out broken wall reaction, reaction time 30min, the sludge after broken wall treatment is taken off
Water, the water of abjection enter biochemical sewage system, and sludge is utilized as building materials raw material, take dewatered primary sludge and secondary sludge
It is analyzed, as a result following (unit: mg/kg):
Embodiment 3
Heavy metal chelating agent is added into the primary sedimentation tank of sewage plant, dosage 120mg/L adds flocculation aid PAM, adds
Dose is 15 mg/L, and residence time of the primary sludge in primary sedimentation tank is for 24 hours, NaOH solution to be added into primary sludge, until pH
It is 11, carries out broken wall reaction, reaction time 10min, the sludge after broken wall treatment is dehydrated, and it is raw that the water of abjection enters sewage
Change system, sludge are utilized as building materials raw material, and dewatered primary sludge and secondary sludge is taken to be analyzed, as a result following (single
Position: mg/kg):
。
Claims (2)
1. a kind of municipal wastewater sludge joint disposal device characterized by comprising sewage pretreating device (1)；Agent for capturing is mixed
It closes pond (2), is connected with the sewage pretreating device (1)；Agent for capturing chemicals dosing plant (3), with the agent for capturing mixing pit (2)
It is connected；Flocculant mixing tank (4) is connected with the agent for capturing mixing pit (2)；Flocculant chemicals dosing plant (5), with the wadding
Solidifying agent mixing pit (4) are connected；Primary sedimentation tank (6) is connected with the flocculant mixing tank (4)；Primary sludge reservoir (7), with
The primary sedimentation tank (6) is connected；Biochemical sewage system (8) is connected with the primary sedimentation tank (6)；Secondary settling tank (9), with the dirt
Water biochemical system (8) is connected；Excess sludge reservoir (10) is connected with the secondary settling tank (9)；Sewage after-treatment device
(11), it is connected with the secondary settling tank (9)；Broken wall system (12) is connected with the primary sludge reservoir (7)；Dehydration device
(13), it is connected with the broken wall system (12) and the biochemical sewage system (8).
2. a kind of municipal wastewater sludge joint disposal device according to claim 1, which is characterized in that the broken wall system
(12) include: reactor tank (14), be connected with the primary sludge reservoir (7)；NaOH chemicals dosing plant (15), with the reactor tank
(14) it is connected；Equipment for separating liquid from solid (16) is connected with the reactor tank (14)；It is and described solid in clear liquid and device (17)
Liquid separating apparatus (16) is connected with biochemical sewage system (8)；Clear liquid neutralizer chemicals dosing plant (18), and in the clear liquid and fills
(17) are set to be connected；With device (19) in sludge, it is connected with the equipment for separating liquid from solid (16) and dehydration device (13)；Sludge
Neutralizer chemicals dosing plant (20) is connected with the sludge with device (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821541365.5U CN208949094U (en) | 2018-09-20 | 2018-09-20 | Municipal administration sewage sludge synthesizes processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821541365.5U CN208949094U (en) | 2018-09-20 | 2018-09-20 | Municipal administration sewage sludge synthesizes processing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208949094U true CN208949094U (en) | 2019-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821541365.5U Active CN208949094U (en) | 2018-09-20 | 2018-09-20 | Municipal administration sewage sludge synthesizes processing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108996855A (en) * | 2018-09-20 | 2018-12-14 | 天津壹新环保工程有限公司 | Municipal sewage and sludge comprehensive treatment method and device |
-
2018
- 2018-09-20 CN CN201821541365.5U patent/CN208949094U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108996855A (en) * | 2018-09-20 | 2018-12-14 | 天津壹新环保工程有限公司 | Municipal sewage and sludge comprehensive treatment method and device |
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