CN207130170U - A kind of aerobic composting system of domestic sludge - Google Patents
A kind of aerobic composting system of domestic sludge Download PDFInfo
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- CN207130170U CN207130170U CN201720481470.3U CN201720481470U CN207130170U CN 207130170 U CN207130170 U CN 207130170U CN 201720481470 U CN201720481470 U CN 201720481470U CN 207130170 U CN207130170 U CN 207130170U
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- 239000010802 sludge Substances 0.000 claims abstract description 63
- 238000003860 storage Methods 0.000 claims abstract description 41
- 230000003750 conditioning effect Effects 0.000 claims abstract description 32
- 238000010564 aerobic fermentation Methods 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 238000009264 composting Methods 0.000 claims abstract description 14
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims description 36
- 239000007787 solid Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000000706 filtrate Substances 0.000 claims description 9
- 238000004364 calculation method Methods 0.000 claims description 7
- 238000010992 reflux Methods 0.000 claims description 6
- 239000003814 drug Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 14
- 238000010924 continuous production Methods 0.000 abstract description 6
- 239000002361 compost Substances 0.000 abstract description 4
- 239000002245 particle Substances 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000018044 dehydration Effects 0.000 description 5
- 238000006297 dehydration reaction Methods 0.000 description 5
- 238000000855 fermentation Methods 0.000 description 5
- 230000004151 fermentation Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000012620 biological material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 210000003454 tympanic membrane Anatomy 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model provides a kind of aerobic composting system of domestic sludge, and it can solve the technical problem that existing aerobic compost method personnel labor intensity is big, continuous production is poor, industrialized level is low.It includes mud conditioning device, filter-pressing device, breaker and the aerobic fermentation device being sequentially connected with, agitator is provided with the tank body of the mud conditioning device, it also includes sludge storage device, filter aid storage device and the curing agent storage device being connected respectively with the mud conditioning device.
Description
Technical field
It the utility model is related to field of solid waste treating technology, more particularly to the application technology as the second resource neck of sludge
A kind of domain, and in particular to aerobic composting system of domestic sludge.
Background technology
With the quickening of urbanization process, the concentration of population, the yield of city domestic sewage rises year by year, as sewage
The yield of accessory substance-sludge of processing is also subsequently formed growth incrementally.In face of increasingly serious environmental pressure and industry
Change the fast-developing energy shortage problem brought, recycling -- i.e. by sludge carry out minimizing and it is stabilized simultaneously, use up
It is possible by useful component therein --- mainly carbon source, nitrogen source is rationally utilized, and turns into grinding for current sludge treating method
Study carefully focus.
Aerobic compost is the technical method commonly used during recycling sludge utilizes, and according to the difference of degree of dehydration, is broadly divided into
Two kinds：Method one uses preliminary hydro-extraction, and it includes two steps, Step 1: first dewater treatment is carried out to sludge, Step 2:
Fermentation reactor system processing is carried out to the sludge after first dehydration.Method two uses deep dehydration, and it includes three steps, Step 1:
Add conditioner and quenched rear progress deep dehydration processing is carried out to sludge, obtain mud cake；Step 2, broken place is carried out to mud cake
Reason, obtain mud cake particle；Step 3: mud cake particle is subjected to fermentation reactor system processing.At present, the composting process of above two method
It is entirely that not only personnel labor intensity is big, and continuous production is poor, industrialized level is low by manual operations.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of aerobic composting system of domestic sludge, it can solve existing
The technical problem that aerobic compost method personnel labor intensity is big, continuous production is poor, industrialized level is low.
Its technical scheme is a kind of such, aerobic composting system of domestic sludge, it is characterised in that：It includes sequentially connecting
Mud conditioning device, filter-pressing device, breaker and the aerobic fermentation device connect, the tank body of the mud conditioning device is interior to be set
Have agitator, its also include be connected respectively with the mud conditioning device sludge storage device, filter aid storage device and consolidate
Agent storage device.
Further, the sludge storage device includes first dewatered sludge storage device and water factory's thickened sludge storage dress
Put.
Further, the filter-pressing device includes the first plate and frame filter press and the second plate and frame filter press.
Further, the aerobic fermentation device includes the first aerobic fermentation tank and the second aerobic fermentation tank.
Further, the discharging opening of the first dewatered sludge storage device connects the mud by shaftless elevator pump and adjusted
The sludge feeding mouth of device is managed, the discharging opening of water factory's thickened sludge storage device connects the mud by screw pump and nursed one's health
The sludge feeding mouth of device, the discharging opening of the filter aid storage device and the discharging opening of curing agent storage device pass through respectively
One weight calculation spiral solid doser, the second weight calculation spiral solid doser connect the medicament feeding mouth of the mud conditioning device,
The discharging opening of the mud conditioning device connects the feeding mouth and the second sheet frame pressure of the first plate and frame filter press by screw pump respectively
The feeding mouth of filter, the filtrate discharging opening of first plate and frame filter press and the filtrate discharging opening of the second plate and frame filter press lead to respectively
Cross the thinned water feeding mouth that reflux pump connects the mud conditioning device, the mud cake discharging opening of first plate and frame filter press and
The mud cake discharging opening of second plate and frame filter press connects the feeding mouth of lifting hopper by the first belt conveyor respectively, described to carry
The discharging opening for rising hopper connects the feeding mouth of breaker by the second belt conveyor, and the discharging opening of the breaker leads to
Cross the feeding mouth that the 3rd belt conveyor connects the first aerobic fermentation tank, the discharging opening of first aerobic fermentation tank passes through the
Four belt conveyors connect the feeding mouth of the second aerobic fermentation tank.
A kind of aerobic compost method of domestic sludge, it comprises the following steps, Step 1: addition conditioner is carried out to sludge
Deep dehydration processing is carried out after quenched, obtains mud cake；Step 2, break process is carried out to mud cake, obtains mud cake particle；Step
3rd, mud cake particle is subjected to fermentation reactor system processing；It is characterized in that：The conditioner includes curing agent and filter aid, described solid
The dosage of agent and the filter aid is the 10% ~ 30% of sludge solid content, and the curing agent includes 5%- as mass fraction
15% dregs of incinerator, 50%-70% carbide slags and 20%-35% desulfurated plasters, the filter aid are biological material.
Further, in step 1, the biological material includes following any or several materials：Sawdust, bamboo powder,
Mushroom slag, activated carbon, plant ash, vegetable seeds or fruit nucleocapsid.
Further, the biological material is granular material, and particle size is 0.1mm ~ 0.15mm.
Further, step 1 is specific as follows,
First, conditioning of mud solid content, to form initial mud, the solid content of the initial mud is 3%-10%；
Secondly, filter aid is added successively into the initial mud and curing agent progress is quenched, and be stirred respectively, institute
It is 100r/min, time 15min to state the rotating speed being stirred；
Then, the sludge after will be quenched is delivered to plate and frame filter press, keeps pressure≤0.8Mpa, feeds 40min, keeps pressure
Power≤1.8Mpa, eardrum squeezing 40min-50min, release, obtains mud cake, the moisture content of the mud cake is 55%-65%, pH value is
8.0~8.5。
Further, by the thickened sludge and moisture content of moisture content 95%-99.2% caused by urban wastewater treatment firm
80%-85% first dewatered sludge is mixed, and forms initial mud.
Further, in step 2, mud cake is delivered to breaker and crushed, the particle diameter of the mud cake particle after crushing
Size is 45mm-60mm.
Further, step 3 is specific as follows,
First, windrow processing is carried out to mud cake particle, heap body size is 4.5m × 1.5m × 1.5m（Length × width × height）；
Secondly, progress is once decomposed, until until heap temperature no longer rises, once decomposed rear material pH is 7.2-7.6,
Moisture content is 40%-50%, and in sludge butt, full nitrogen is 1.58%-1.7%, and full phosphorus is 2.72%-2.9%, and full potassium is 0.43%-
0.85%；
Then, progress is secondary decomposed, up to the apparent yellowish-brown of material and gives out bilgy odour, and secondary decomposed rear material pH is
6.5-8, moisture content 30%-38%, in sludge butt, full nitrogen 1.6%-2.0%, full phosphorus 2.72%-3.2%, full potassium 0.4%-0.83%.
Further, it is described once decomposed, as 60 DEG C of heap temperature ＞, carry out turning over throwing or increase aeration quantity, once
Oxygen quantity delivered >=0.45m in digest process3/m3.h。
Above-mentioned aerobic composting system of the present utility model, it can reduce artificial demand, reduce labor intensity, and can be true
Continuous production is protected, improves industrialized level；Filter-pressing device includes the first plate and frame filter press and the second plate and frame filter press, when first
When plate and frame filter press carries out feed operation, the second plate and frame filter press can carry out press operation, and both alternate runs can be realized
Charging and the simultaneously operating of squeezing, further ensure that continuous production；The filter of first plate and frame filter press and the second plate and frame filter press
Liquid outlet connects mud conditioning device by reflux pump, filtrate can be implemented effectively to utilize, reduce the consumption of water resource, simultaneously
The alternate run of first plate and frame filter press and the second plate and frame filter press, the continuous supply of filtrate can be realized, is further ensured that
Continuous production.
Brief description of the drawings
Fig. 1 is the system connection figure of aerobic composting system of the present utility model.
Reference：1- filter aid storage devices；2- curing agent storage devices；3- second counts weight spiral solid doser；
4- first counts weight spiral solid doser；The first dewatered sludge storage devices of 5-；6- water factories thickened sludge storage device；7- screw rods
Pump；The shaftless elevator pumps of 8-；9- agitators；10- mud conditioning devices；11- screw pumps；The plate and frame filter press of 12- first；13- second
Plate and frame filter press；14- reflux pumps；The belt conveyors of 15- first；16- lifts hopper；The belt conveyors of 17- second；18-
Breaker；The belt conveyors of 19- the 3rd；The aerobic fermentation tanks of 20- first；The belt conveyors of 21- the 4th；22- is second best
Aerobe fermentation tank.
Embodiment
A kind of aerobic composting system of domestic sludge, as shown in figure 1, it includes the mud conditioning device being sequentially connected with
(10), filter-pressing device, breaker（18）And aerobic fermentation device, agitator is provided with the tank body of mud conditioning device (10)
（9）, it also includes the sludge storage device being connected respectively with mud conditioning device (10) and filter aid storage device (1) and solidification
Agent storage device (2).
Sludge storage device includes first dewatered sludge storage device (5) and water factory's thickened sludge storage device (6)；
Filter-pressing device includes the first plate and frame filter press (12) and the second plate and frame filter press (13)；
Aerobic fermentation device includes the first aerobic fermentation tank and the second aerobic fermentation tank；
The discharging opening of first dewatered sludge storage device (5) passes through shaftless elevator pump（8）Connect mud conditioning device (10)
Sludge feeding mouth, the discharging opening of water factory's thickened sludge storage device (6) passes through screw pump（7）Connect mud conditioning device (10)
Sludge feeding mouth, the discharging opening of filter aid storage device (1) and the discharging opening of curing agent storage device (2) pass through first respectively
Count weight spiral solid doser（4）, second weight calculation spiral solid doser（3）Connect the medicament pan feeding of mud conditioning device (10)
Mouthful, the discharging opening of mud conditioning device (10) by screw pump (11) connect respectively the first plate and frame filter press (12) feeding mouth and
The feeding mouth of second plate and frame filter press (13), the filtrate discharging opening and the second plate and frame filter press (13) of the first plate and frame filter press (12)
Filtrate discharging opening pass through reflux pump respectively（14）Connect the thinned water feeding mouth of mud conditioning device (10), the first sheet frame pressure
The mud cake discharging opening of filter (12) and the mud cake discharging opening of the second plate and frame filter press (13) pass through the first belt conveyor respectively
（15）Connection lifting hopper（16）Feeding mouth, lifted hopper（16）Discharging opening pass through the second belt conveyor（17）Connection
Breaker（18）Feeding mouth, breaker（18）Discharging opening pass through the 3rd belt conveyor（19）It is aerobic to connect first
Fermentation tank（20）Feeding mouth, the first aerobic fermentation tank（20）Discharging opening pass through the 4th belt conveyor（21）Connection second
Aerobic fermentation tank（22）Feeding mouth.
Operating process is as follows：
Step 1,
First, shaftless elevator pump is passed through（8）In first dewatered sludge storage device (5), moisture content 80%- will be stored in
85% first dewatered sludge is delivered to mud conditioning device（10）, pass through screw pump（7）Water factory's thickened sludge storage will be stored in
In device (6), moisture content 95%-99.2% thickened sludge is delivered to mud conditioning device（10）, both are mixed, and are formed
Initial mud, the solid content of initial mud is 3%-10%；
Secondly, the first weight calculation spiral solid doser is passed through（4）, second weight calculation spiral solid doser（3）It will be stored in
Filter aid in filter aid storage device (1), the curing agent for being stored in curing agent storage device (2) are quantitatively added to mud and nursed one's health
Device（10）, the dosage of filter aid and curing agent is the 10%-30% of the solid content of initial mud, is stirred, stirring is mixed
The rotating speed of conjunction is 100r/min, time 15min；
Then, by screw pump (11) will be quenched after sludge be delivered to successively be delivered to the first plate and frame filter press (12) and
Second plate and frame filter press (13), can add valve, pass through the opening and closing conditioning of mud conveying direction of valve, it is ensured that the first plate compression
Machine (12）During feed operation, the second plate and frame filter press (13) can carry out press operation, keep pressure 0.8Mpa, feed 50min,
Pressure 1.8Mpa, eardrum squeezing 40min are kept, release obtains mud cake, and filtrate passes through reflux pump（14）It is delivered to mud conditioning dress
Put (10).
The solid content of initial mud is 3%-10%, if need to stand removal supernatant, processing time when thickened sludge is used alone
It is long；If the sludge being dehydrated for the first time, which is used alone, to be diluted with a large amount of clear water, water wasting；And the sludge being dehydrated by thickened sludge and for the first time
Blending forms initial mud, without standing and water mixing, and then shortens the time, using water wisely.
Step 2,
Pass through the first belt conveyor（15）Mud cake is delivered to lifting hopper（16）Lifting operation is carried out, is then led to again
Cross the second belt conveyor（17）Mud cake is delivered to breaker（18）Crushed, the particle diameter of the mud cake particle after crushing
Size is 45mm-60mm；It is broken further to improve gas permeability, the production of stench during follow-up aerobic fermentation is greatly decreased
It is raw.
Step 3,
First, the 3rd belt conveyor is passed through（19）Mud cake particle after will be broken is delivered to the first aerobic fermentation tank
（20）Carry out once decomposed, the first aerobic fermentation tank（20）Interior install additional turns over polishing apparatus or aerator, as heap temperature ＞ 60
DEG C when, turn over throwing or increase aeration quantity, oxygen quantity delivered >=0.45m in a digest process3/m3.h；
Secondly, the 4th belt conveyor is passed through after the completion of once decomposed（21）Material is delivered to the second aerobic fermentation tank
（22）Carry out secondary decomposed, ultimately form organic fertilizer.
Claims (5)
- A kind of 1. aerobic composting system of domestic sludge, it is characterised in that：Its mud conditioning device (10) for including being sequentially connected with, Filter-pressing device, breaker（18）And aerobic fermentation device, agitator is provided with the tank body of the mud conditioning device (10) （9）, its also include the sludge storage device that is connected respectively with the mud conditioning device (10) and filter aid storage device (1) and Curing agent storage device (2).
- 2. the aerobic composting system of domestic sludge according to claim 1, it is characterised in that：The sludge storage device bag Include first dewatered sludge storage device (5) and water factory's thickened sludge storage device (6).
- 3. the aerobic composting system of domestic sludge according to claim 2, it is characterised in that：The filter-pressing device includes the One plate and frame filter press (12) and the second plate and frame filter press (13).
- 4. the aerobic composting system of domestic sludge according to claim 3, it is characterised in that：The aerobic fermentation device bag Include the first aerobic fermentation tank (20) and the second aerobic fermentation tank (22).
- 5. the aerobic composting system of domestic sludge according to claim 4, it is characterised in that：The first dewatered sludge is deposited The discharging opening of storage device (5) passes through shaftless elevator pump（8）Connect the sludge feeding mouth of the mud conditioning device (10), the water The discharging opening of factory's thickened sludge storage device (6) passes through screw pump（7）Connect the sludge pan feeding of the mud conditioning device (10) Mouthful, the discharging opening of the filter aid storage device (1) and the discharging opening of curing agent storage device (2) pass through the first weight calculation spiral shell respectively It is rotated with body doser（4）, second weight calculation spiral solid doser（3）Connect the medicament pan feeding of the mud conditioning device (10) Mouthful, the discharging opening of the mud conditioning device (10) connects the pan feeding of the first plate and frame filter press (12) by screw pump (11) respectively The feeding mouth of mouth and the second plate and frame filter press (13), the filtrate discharging opening and the second sheet frame pressure of first plate and frame filter press (12) The filtrate discharging opening of filter (13) passes through reflux pump respectively（14）Connect the thinned water pan feeding of the mud conditioning device (10) Mouthful, the mud cake discharging opening of first plate and frame filter press (12) and the mud cake discharging opening of the second plate and frame filter press (13) pass through respectively First belt conveyor（15）Connection lifting hopper（16）Feeding mouth, the lifting hopper（16）Discharging opening pass through second Belt conveyor（17）Connect breaker（18）Feeding mouth, the breaker（18）Discharging opening pass through the 3rd belt Conveying device（19）Connect the first aerobic fermentation tank（20）Feeding mouth, first aerobic fermentation tank（20）Discharging opening pass through 4th belt conveyor（21）Connect the second aerobic fermentation tank（22）Feeding mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720481470.3U CN207130170U (en) | 2017-05-03 | 2017-05-03 | A kind of aerobic composting system of domestic sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720481470.3U CN207130170U (en) | 2017-05-03 | 2017-05-03 | A kind of aerobic composting system of domestic sludge |
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| Publication Number | Publication Date |
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| CN207130170U true CN207130170U (en) | 2018-03-23 |
Family
ID=61630834
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110040924A (en) * | 2019-03-14 | 2019-07-23 | 杭州电子科技大学 | Sludge reduction method |
| CN112723926A (en) * | 2020-12-30 | 2021-04-30 | 四川深蓝环保科技有限公司 | Sludge hydrothermal composting system and method |
| CN114804538A (en) * | 2022-05-19 | 2022-07-29 | 山东合创新材料有限公司 | Sludge recycling process of primary sedimentation tank for manufacturing bobbin paper |
-
2017
- 2017-05-03 CN CN201720481470.3U patent/CN207130170U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110040924A (en) * | 2019-03-14 | 2019-07-23 | 杭州电子科技大学 | Sludge reduction method |
| CN112723926A (en) * | 2020-12-30 | 2021-04-30 | 四川深蓝环保科技有限公司 | Sludge hydrothermal composting system and method |
| CN114804538A (en) * | 2022-05-19 | 2022-07-29 | 山东合创新材料有限公司 | Sludge recycling process of primary sedimentation tank for manufacturing bobbin paper |
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