CN110418765A - For adjusting the dehydration procedure of biological sulphur suspension moisture content - Google Patents
For adjusting the dehydration procedure of biological sulphur suspension moisture content Download PDFInfo
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- CN110418765A CN110418765A CN201880013553.7A CN201880013553A CN110418765A CN 110418765 A CN110418765 A CN 110418765A CN 201880013553 A CN201880013553 A CN 201880013553A CN 110418765 A CN110418765 A CN 110418765A
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- sulphur
- moisture content
- biological
- imhoff
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/0243—Other after-treatment of sulfur
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/0205—Separation of sulfur from liquids, e.g. by coalescence
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention relates to a kind of dehydration procedures, adjust the differential value for being flowed into the Imhoff value and dehydrator containing biological sulphur liquid of dehydration procedure to dry biological sulphur, so that biological sulphur moisture content to be adjusted to average 45 to 55% range.The present invention adjusts the moisture content of the biological sulphur of final production by adjusting the principal element of dehydration procedure, to have the effect of saving the operating cost of whole process and can make desulphurization plant steady running.
Description
Technical field
The present invention relates to a kind of final steps as biological sulphur production process for adjusting the de- of biological sulphur moisture content
Water drying process.
That is, it is an object of the present invention in order to pass through precipitation tank (settler) in biological sulphur production process and be dehydrated
The commodity production of the biological sulphur of device production, adjusts the principal element of dehydration procedure, thus biological sulphur of the appropriate adjustment through producing
Moisture content.
In order to produce biological sulphur, the hydrogen sulfide contained in the biogas that will be generated in refuse landfill is needed to be converted into element
Sulphur (S) needs large-scale equipment, with the increase of sulphur analysis amount, life at this time in order to handle high sulphur analysis amount (S-load)
The yield of object sulphur is consequently increased.If as a result, not thinking that starting regard landfill area's biogas as original the biological sulphur for handling generation
The generating equipment of material, then have any problem, and in order to using biological sulphur as offal treatment, need further to put into many operating charges
With and as big problem.
Therefore, even if also to be produced with one in order to which effectively start will fill area's biogas as the generating equipment of raw material
The product of moisture content is determined suitably to process, refine and sell biological sulphur.Therefore, the present invention relates to a kind of adjustment dehydration procedures
Principal element, so as to which the moisture content of biological sulphur product to be adjusted to the technology of prescribed limit.
That is, the present invention will be contained using biological engineering in biogas and landfill area's gas (Land Fill Gas) etc.
Some convert sulfur compounds at elementary sulfur, be in order to commercial distribution generate sulphur and necessary engineering technology.
Background technique
The harmful substance that sulphur generates during belonging in traditional sense from various offal treatments, however biological sulphur with
Past industrial sulphur is different, has the solubility to water high, harmless to the mankind, unknown losses etc. will not be caused excellent crops
Point, a possibility that accordingly acting as environmentally protective agricultural crop formulation, are high.In addition, due to there is no toxicity, for cosmetics, pharmaceuticals,
Fungicide, waste material etc. and it is widely used.In addition, the ingredient of biological sulphur close to neutrality, therefore, has without carrying out to use calcellation
Material and pesticide etc. and the advantages of the further processing process such as add chemicals, therefore it is highly beneficial.
According to the observation of Food and Agricultural Organization of the United Nations (FAO), until 2018, global fertilizer market will be given birth to
A length of about 290,000,000 won, pesticide market be grown to 77,000,000 won of scales.
Biological sulphur is produced during removing sulfide (SOx) as one of dust producing cause, particle
It is small, liquid phase can be produced as, therefore not only can replace existing chemical fertilizer, be also used as pesticide material come using, because
It is very high that this evaluates its potentiality.
As described above, adjusting the moisture content of sulphur in final refining step in order to which biological sulphur is used for commercial use
It is particularly important to dehydrate its optimization of process.
However, existing its sulphur analysis amount (S-load) of biological desulphurization (Thiopaq) process is less and by the biological sulphur of generation
As offal treatment, it is therefore not necessary to which the biological sulphur generated is made to keep certain moisture content etc., do not set up as a result, really
The process for adjusting biological sulphur moisture content.
On the one hand, the master operation of dehydration procedure is adjusted because being known as: the i) TSS (suspended solid in precipitation tank (settler)
Total amount: Total Suspended Solids): the amount of total solid matters in process water；Ii) the English Hough in shallow lake slot (settler)
(Imhoff): in certain time (1 hour), the volume and sulphur of the solids precipitated in the process water of certain volume (1000ml) are negative
The activity of lotus amount (S-load) and microorganism has substantial connection；Iii) dehydrator supply flow (being adjusted by pump)；iv)
Main motor rpm (spin rpm): when the revolving speed of spin is operated with maximum speed outside dehydrator, the separation property of solids get higher and
Moisture content is lower；V) differential value: being indicated by (mair motor speed-differential speed motor speed)/(deceleration), and differential speed motor compares main electricity
Machine rotation is slightly slow, and direction of rotation is opposite.
The moisture content because usually adjusting biological sulphur can be adjusted by adjusting master operation listed above, wherein especially
The moisture content of biological sulphur can be adjusted to best by adjusting Imhoff value and differential value.
On the one hand, TSS the and Imhoff value of precipitation tank can be adjusted by optimizing whole process, however
It can be adjusted for the first time by transfer pump.Precipitation tank of the precipitation tank as not special mechanical equipment, when by adjusting stopping
Between (sedimentation time), adjustable TSS and Imhoff value.
It then, is centrifuge dehumidifier for the dehydrator in biological sulphur dehydration procedure, such as the ideograph institute of Fig. 1 and Fig. 2
Show.
System is that the rotary body (spin) of dehydrator is rotated with certain speed (about 3100rpm), is driven by differential speed motor
Dynamic screw is rotated with the speed slightly slower than rotary body, and direction of rotation is on the contrary, by centrifugal force separate among rotary body
The object to be processed of supply discharges the solids being sticked on 13 outer wall of spin to solids discharge portion 16 by screw 15.At this point,
The difference of the speed of main motor 1 and differential speed motor 2 is defined as differential value divided by the value of reduction ratio.
Summary of the invention
Problem to be solved by the invention
Project to be solved by this invention be to provide it is a kind of in the drying process of biological sulphur, be used for appropriate adjustment biology sulphur
The dehydration procedure of moisture content.
In addition, other projects of the present invention for solution are to provide a kind of process, with the change of the flow flowed into process
Change and Imhoff value may also can change, with the variation of the Imhoff value, adjusts dehydrator differential value, protect biological sulphur
Hold certain moisture content.
In addition, the present invention for providing a kind of method, i.e., by developing the biological sulphur dehydration procedure, will fill area's gas
The biological sulphur generated in body generating equipment as by-product is produced as keeping the commercial product of the moisture content of certain level.
The solution to the problem
In order to solve the problem of the present invention, preferably, adjusts to be flowed into dry biological sulphur and give birth to containing for dehydration procedure
The Imhoff value of object sulphur liquid and the differential value of dehydrator, so that biological sulphur moisture content to be adjusted to average 45 to 55% model
It encloses.
When moisture content is less than 45%, various problems can be generated, first, due to the load of dewatering system increases and equipment
Service life shortens, the duration of runs shortens, and since increased load causes circuit to disconnect (Trip) automatically suddenly, thus causes steady
The problems such as qualitative reduction, is had difficulties in the operating of equipment itself due to the above problem.Second, in terms of the characteristic of biological sulphur,
When solids (sulphur) is containing 60% or more (moisture content is 40% or less), it is classified as dangerous goods and exists in management tired
It is difficult.Third, if contained the moisture content of low concentration, in order to the biological sulphur of production subsequent handling and when being transferred, deposit
In problem.
In addition, the density of sulphur suspension reduces, the biological sulphur contained in sulphur suspension when moisture content is more than 55%
Amount reduce, therefore, as commodity, its value can be lower.
Then, preferably, be flowed into dry biological sulphur the Imhoff value containing biological sulphur solution of dehydration procedure with
And the differential value of dehydrator is kept in the prescribed limit being shown below, so as to adjust biological sulphur moisture content.
[mathematical expression 1] 3≤Imhoff (ml/L)/differential value (rpm)≤27
Process operation result, when Imhoff (ml/L)/differential value (rpm) value is less than 3, even if being flowed into dehydrator
Biological sulphur moisture content is high, can also reduce the residence time inside dehydrator, therefore cannot obtain the aqueous of desired biological sulphur
Rate, therefore not preferably.In contrast to this, when Imhoff (ml/L)/differential value (rpm) is more than 27, even if sufficiently having sloughed life
The moisture of object sulphur suspension, also generate the residence time inside dehydrator be kept needed for it is above as a result, therefore occurring de-
A possibility that the phenomenon that inner wall of water machine body is stained with the phenomenon that biological sulphur dried object, and dehydrator is caused to be plugged occurs gets higher,
Its overload that will lead to dehydrator equipment itself has the danger for destroying equipment.
On the one hand, more preferably, the dehydrator differential value of dehydration procedure is kept meeting such as in order to dry biological sulphur
In prescribed limit shown in following formula, so as to adjust biological sulphur moisture content.
[mathematical expression 2] 15≤differential value (rpm)≤30
Generally, when keeping appropriate Imhoff value, if differential value less than 15rpm, generates biological sulphur inside dehydrator
The time of solids is excessively slow, leads to excessive dehydration.Therefore, the too low biological sulphur of production moisture content, is possible to will increase on the whole
The load of dewatering system, therefore not preferably.
In contrast to this, if differential value is more than 30rpm, biological sulphur is generated with too fast speed inside dehydrator and is consolidated
Body object, and reduce dehydrating effect.The excessively high biological sulphur of moisture content is generated as a result, therefore not preferably.In this case, needing to reduce
Dehydrator flow increases the residence time inside dehydrator.
Then, preferably, the Imhoff value containing biological sulphur solution that dehydration procedure is flowed into dry biological sulphur is protected
It holds in the prescribed limit for meeting and being shown below.
[mathematical expression 3] 100≤Imhoff (ml/L)≤400
When Imhoff (ml/L) value is less than 100, the concentration (actual amount containing biological sulphur) containing biological sulphur suspension is indicated
It is low.It can be generated because of entire working procedure systems the problem of, be biological sulphur of the amount of the biological sulphur because of outflow than being flowed into process
The problem of amount causes more.When keeping the value less than 100, it is difficult to adjust moisture content with differential value in dehydration procedure, can has
There is slightly high moisture content, or the biological sulphur of moisture content not necessarily can be produced.
In contrast to this, when Imhoff (ml/L) value is more than 400 and keeps very high concentration, the biological sulphur of inflow
Amount is more than the processing capacity of the dehydrator of setting, and therefore, the residence time in dehydrator is insufficient, it is difficult to which production has certain shape
State, the biological sulphur with certain moisture content.Therefore, in this case, needing to reduce the flow sheet for the process water being flowed into process
Body carries out.
In addition, being more preferably, the Imhoff containing biological sulphur solution of dehydration procedure is flowed into dry biological sulphur
Value keeps meeting in the prescribed limit being shown below, so as to adjust biological sulphur moisture content.
[mathematical expression 4] 150≤Imhoff (ml/L)≤300
If run in the range, the moisture content of biological sulphur can be kept under conditions of more stable, to give
The burden for giving process is few, and the physical property of the biological sulphur of production can also be stablized.
Then, more preferably, the moisture content of the biological sulphur produced by process as described above keeps average 47 to 52%
Range.If keeping the moisture content of biological sulphur as described above, process can not only be steadily run, the physical property of product also can
Stablized, so as to produce the biological sulphur product of high quality.
On the one hand, preferably, if Imhoff value becomes smaller, reduce dehydrator differential value, to make biological sulphur keep certain
Moisture content preferably if Imhoff value becomes larger, increase dehydrator differential value, to make biological sulphur keep certain aqueous
Rate.
Invention effect
The present invention adjusts the moisture content of the biological sulphur of final production by adjusting the principal element of dehydration procedure, to save
The running expense of about whole process and desulphurization plant steady running can be made.In addition, using biological sulphur as when offal treatment,
Although the processing cost of about 150,000 Korea Spro yuan/ton can be generated, if being produced as commercial product by refining work order appropriate,
As high value-added industries, income can be further generated.
As described above, dehydration procedure through the invention, can produce the biological sulphur of the moisture content with prescribed limit
Product, moreover, when being applied in green and environment-friendly pesticide, fertilizer etc., influence that the quality of product has also been generated.
Detailed description of the invention
Fig. 1 is the ideograph in the section for showing dehydrator and the title of various pieces.
Fig. 2 is to change differential value in the state of making dehydrator flow and TSS, Imhoff keep certain and contain to adjust
The process service data chart of water rate.
Fig. 3 is shown in the state of making dehydrator differential value keep certain, and the flow for being flowed into dehydrator can be increased
When, the decline of Imhoff value, the process service data chart that thus moisture content rises.
Fig. 4 is when showing the Imhoff value of precipitation tank to keep prescribed limit, to produce one by adjusting dehydrator differential value
Determine the process service data chart of the biological sulphur of concentration aqueous rate.
Even if Fig. 5 is to show the Imhoff value of precipitation tank to change within the specified scope, can be by adjusting dehydrator
Differential value makes the biological sulphur keep the process service data chart of appropriate moisture content.
Fig. 6 is when showing dehydrator differential value to keep in proper range, if adjusting Imhoff value by adjusting flow,
The process service data chart for the moisture content that biological sulphur can then kept in prescribed limit.
Even if Fig. 7 is to show sulphur analysis amount to change within the specified scope, can be by adjusting flow and dehydrator
Differential value makes the biological sulphur keep the process service data chart of appropriate moisture content.
Description of symbols
1: main motor, 2: differential speed motor, 3: rolling fixed driver, 4: spherical drive device, 5: frame, 6: distributor, 7:(mud
Slurry) supply pipe, 8: rolling bearing, 9:(mud) supply department, 10: ball bearing, 11: adjustment plate (water-ring), 12: being detached from raffinate
Discharge portion, 13: spin, 14: separation chamber, 15: transfer screw, 15a: precipitating disk, 16: solids discharge portion, 17: gearbox, 18:
Vibration water absorber, 19: clutch.
Specific embodiment
Reduction-sulfurization hydrogen is come after being converted to the biological sulphur as elementary sulfur, in order to produce the biology containing appropriate moisture
Sulphur product designs dehydration and drying process.The core equipment for dehydrating process is dehydrator, by adjusting the dehydration of dehydrator
Speed and the flow for being supplied to dehydrator make biological flow keep appropriate moisture content.
The flow for being supplied to dehydrator can be adjusted by inverter, and the flow for being supplied to dehydrator can be in 4 ∽
20m3It is adjusted within the scope of/hr.Main motor and differential speed motor, the main motor and differential of dehydrator are installed in dehydrator
The velocity variations (differential value) of motor can also be adjusted in operation, and main motor is opened when starting maximum by inverter
It moves as 3100RPM degree, is adjusted to 80 ∽ 100% or so of peak.Then, differential value can in 0.5 ∽, 32 range into
Row adjustment sets optimum range to adjust biological sulphur moisture content according to sulphur analysis amount.
Under conditions of flow and certain Imhoff value, only by adjusting the differential value of dehydrator, so that it may effectively adjust
Whole moisture content.In particular, operating adjustment becomes very if dehydrator has the function of being converted automatically after setting differential value
It is easy.
Following table is to change differential value in the state of making dehydrator flow and ISS, Imhoff keep certain and contain to adjust
The process service data of water rate shows the result in Fig. 2.
Table 1 is one timing of Imhoff value, is the chart data of Fig. 2 with the moisture content change of dehydrator changes in flow rate
In a part.
As shown in Fig. 2, under certain condition, the process water (solids) when increasing dehydrator differential value, inside rotary body
Residence time shorten, thus solid-liquid separation efficiency is caused to be lower, improves moisture content.
[table 1]
The implementation form of invention
Table 2 is the chart numbers of Fig. 3 with the moisture content change that Imhoff value changes for one timing of dehydrator differential value
A part in.
On the one hand, as shown in figure 3, moisture content, In can also be adjusted by the variation of dehydrator main motor rpm by confirming
When adjusting dehydrator main motor rpm under certain condition, based on density contrast rather than gravity generates centrifugal force, the efficiency thus separated
It changes.
That is, slowing for rotary body (spin) causes centrifugal force to become smaller, solid phase and liquid phase when reducing main motor rpm
Separative efficiency be lower, therefore moisture content is got higher.
It changes for sentence, when dehydrator flow increases, the absolute magnitude for being supplied to the solids of dehydrator be will increase, therefore solid-liquid
Separative efficiency reduces, and biological sulphur moisture content is caused to increase.Then, the sedimentation time of the flow and precipitation tank that are flowed into dehydrator is in
Inversely prroportional relationship, for example, the process water sedimentation time of precipitation tank shortens, to generate Imhoff when increasing dehydrator flow
The phenomenon that value reduces.Therefore, dehydrator flow is adjusted in the appropriate range, when keeping certain Imhoff, can produce one
Determine the biological sulphur of moisture content.
Even if the aqueous of biological sulphur can also be adjusted by adjusting Imhoff value that is, dehydrator differential value keeps certain
Rate.Following table indicates value when running process by the condition.
[table 2]
Table 3 is the Imhoff value of precipitation tank and the variation of dehydrator flow, is the data of chart shown in Fig. 4.
Then, as shown in figure 4, confirming before dehydrator inflow has process water, the Imhoff value of precipitation tank is kept
When in prescribed limit (150 ∽ 300ml/L), it can produce by adjusting the differential value of dehydrator with appropriate moisture content
Biological sulphur.Imhoff value can have big variation with the state of sulphur analysis and microorganism, however can be by adjusting stream
Amount can adjust life to manage in prescribed limit by adjusting dehydrator differential value in the Imhoff value through managing
Object sulphur moisture content.
[table 3]
It is shown in Fig. 5 with the water-cut variation that differential value changes when table 4 is that Imhoff value keeps certain level
Chart data.
On the one hand, as shown in figure 5, confirming when adjustment dehydrator flow has the technique for keeping Imhoff value appropriate
When water is flowed into dehydrator, it can contain by adjusting differential value so that biological sulphur be made to keep certain in 47 ∽, 52% range
Water rate.That is, confirming in the state that process is stablized, as long as the condition of the process water flowed into a long time will not change dramatically
When, the biological sulphur of wanted moisture content can be produced by adjusting differential value.
[table 4]
Table 5 is when keeping the differential value of certain level, is shown in Fig. 6 with the water-cut variation of Imhoff value
Chart data.
As shown in fig. 6, confirming when the differential value of dehydrator keeps transporting in the state that process is stablized in proper range
When row, if the Imhoff value of precipitation tank is adjusted to prescribed limit by appropriate adjustment flow, biological sulphur can be kept
Moisture content.
[table 5]
Table 6 is the biological sulphur water-cut variation with sulphur analysis amount, is the data of chart shown in Fig. 7.
Then, as shown in fig. 7, when the differential value and Imhoff value that confirm adjustment dehydrator are to keep in proper range,
Even if there is variation in sulphur analysis amount (S-load, Ton/day), only it is widely varied if it were not for process long lasting for holding
Situation can then make the moisture content of the biological sulphur through producing keep desired target value.
[table 6]
On the one hand, arrange keep stable moisture content come the Imhoff (ml/L) when running/differential value (rpm) data then
It is as follows.
Table 7 is Imhoff (ml/L)/differential value (rpm) variation when keeping moisture content appropriate.
[table 7]
It, can when Imhoff (ml/L)/differential value (rpm) value to be adjusted between 3 to 27 shown in table 7 as above
So that the moisture content of biological sulphur is maintained at 50% or so, therefore the biological sulphur with outstanding physical property can be produced.
Claims (6)
1. it is a kind of for adjusting the dehydration procedure of biological sulphur moisture content, to adjust to dry biological sulphur and being flowed into dehydration work
The differential value of the Imhoff value and dehydrator containing biological sulphur liquid of sequence, to adjust the dehydration procedure of biological sulphur moisture content,
It is characterized in that,
The Imhoff value containing biological sulphur solution for flowing into dehydration procedure keeps meeting in the prescribed limit such as following formula, thus i.e.
Just sulphur analysis amount changes within the specified scope, and biological sulphur moisture content is also adjusted to average 45 to 55% range:
[mathematical expression 3] 100≤Imhoff (ml/L)≤400
[mathematical expression 1] 3≤Imhoff (ml/L)/differential value (rpm)≤27.
2. according to claim 1 for adjusting the dehydration procedure of biological sulphur moisture content, which is characterized in that in order to dry life
Object sulphur makes the dehydrator differential value of dehydration procedure keep meeting in the prescribed limit such as following formula:
[mathematical expression 2] 15≤differential value (rpm)≤30.
3. according to claim 1 for adjusting the dehydration procedure of biological sulphur moisture content, which is characterized in that in order to dry life
Object sulphur, the Imhoff value containing biological sulphur solution for flowing into dehydration procedure keep meeting in the prescribed limit such as following formula:
[mathematical expression 4] 150≤Imhoff (ml/L)≤300.
4. according to claim 1 for adjusting the dehydration procedure of biological sulphur moisture content, which is characterized in that life produced
The moisture content of object sulphur is maintained at average 47 to 52% range.
5. according to claim 1 for adjusting the dehydration procedure of biological sulphur moisture content, which is characterized in that if Imhoff
Value becomes smaller, then reduces dehydrator differential value, come the moisture content for making biological sulphur keep certain.
6. according to claim 1 for adjusting the dehydration procedure of biological sulphur moisture content, which is characterized in that if Imhoff
Value becomes larger, then increases dehydrator differential value, come the moisture content for making biological sulphur keep certain.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020170024139A KR101813486B1 (en) | 2017-02-23 | 2017-02-23 | Dehydration process to control water content of biosulfur suspension concentrate |
| KR10-2017-0024139 | 2017-02-23 | ||
| PCT/KR2018/002231 WO2018155943A1 (en) | 2017-02-23 | 2018-02-23 | Dehydration process for controlling moisture content of bio-sulfur suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110418765A true CN110418765A (en) | 2019-11-05 |
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| CN201880013553.7A Pending CN110418765A (en) | 2017-02-23 | 2018-02-23 | For adjusting the dehydration procedure of biological sulphur suspension moisture content |
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| Country | Link |
|---|---|
| KR (1) | KR101813486B1 (en) |
| CN (1) | CN110418765A (en) |
| WO (1) | WO2018155943A1 (en) |
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| KR101813486B1 (en) * | 2017-02-23 | 2017-12-29 | 에코바이오홀딩스 주식회사 | Dehydration process to control water content of biosulfur suspension concentrate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006192403A (en) * | 2005-01-17 | 2006-07-27 | Tokyo Electric Power Environmental Engineering Co Inc | Method for reducing water content in dewatered sludge |
| WO2012053894A2 (en) * | 2010-10-18 | 2012-04-26 | Ceradis B.V. | Novel biosulfur formulations |
| KR20140004593A (en) * | 2012-07-03 | 2014-01-13 | 토모에코교 카부시키카이샤 | Sludge processing system and storage medium storing a program for controlling an operation of a sludge processing system thereon |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10128158A (en) * | 1996-11-01 | 1998-05-19 | Trinity Ind Corp | Centrifugal separator |
| KR100794850B1 (en) * | 2006-01-20 | 2008-01-15 | 문일성 | Hydroextractor using rotation speed difference for drum screen and screw |
| KR101328066B1 (en) * | 2013-07-24 | 2013-11-13 | 주식회사 무한기술 | Comparison control mode horizontal type centrifugal separator |
| KR101813486B1 (en) * | 2017-02-23 | 2017-12-29 | 에코바이오홀딩스 주식회사 | Dehydration process to control water content of biosulfur suspension concentrate |
-
2017
- 2017-02-23 KR KR1020170024139A patent/KR101813486B1/en active IP Right Grant
-
2018
- 2018-02-23 WO PCT/KR2018/002231 patent/WO2018155943A1/en active Application Filing
- 2018-02-23 CN CN201880013553.7A patent/CN110418765A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006192403A (en) * | 2005-01-17 | 2006-07-27 | Tokyo Electric Power Environmental Engineering Co Inc | Method for reducing water content in dewatered sludge |
| WO2012053894A2 (en) * | 2010-10-18 | 2012-04-26 | Ceradis B.V. | Novel biosulfur formulations |
| KR20140004593A (en) * | 2012-07-03 | 2014-01-13 | 토모에코교 카부시키카이샤 | Sludge processing system and storage medium storing a program for controlling an operation of a sludge processing system thereon |
| CN103524011A (en) * | 2012-07-03 | 2014-01-22 | 巴工业株式会社 | Sludge processing system and storage medium storing a program for controlling and operation of a sludge processing system thereon |
| CN103524010A (en) * | 2012-07-03 | 2014-01-22 | 巴工业株式会社 | Sludge processing system and storage medium storing a program for controlling an operation of a sludge processing system thereon |
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| KR101813486B1 (en) | 2017-12-29 |
| WO2018155943A1 (en) | 2018-08-30 |
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Application publication date: 20191105 |