WO2005014494A1 - Sludge treatment system and carbureter - Google Patents

Sludge treatment system and carbureter Download PDF

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Publication number
WO2005014494A1
WO2005014494A1 PCT/KR2004/001633 KR2004001633W WO2005014494A1 WO 2005014494 A1 WO2005014494 A1 WO 2005014494A1 KR 2004001633 W KR2004001633 W KR 2004001633W WO 2005014494 A1 WO2005014494 A1 WO 2005014494A1
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WO
WIPO (PCT)
Prior art keywords
sludge
cylinder
waves
combustible gas
incinerating
Prior art date
Application number
PCT/KR2004/001633
Other languages
French (fr)
Inventor
Dong-Min Choi
Original Assignee
Dong-Min Choi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dong-Min Choi filed Critical Dong-Min Choi
Publication of WO2005014494A1 publication Critical patent/WO2005014494A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
    • F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
    • F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/005—Treatment of dryer exhaust gases
    • F26B25/006—Separating volatiles, e.g. recovering solvents from dryer exhaust gases
    • 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
    • C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
    • C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/15—Treatment of sludge; Devices therefor by de-watering, drying or thickening by treatment with electric, magnetic or electromagnetic fields; by treatment with ultrasonic waves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/18—Sludges, e.g. sewage, waste, industrial processes, cooling towers
    • 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
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing

Definitions

  • the present invention relates to a sludge treatment system, and more particularly, to a sludge treatment system which applies, in a vaporizing chamber, heat and various waves such as very high frequencies, very low frequencies, magnetic waves, electronic waves, ultrasonic waves, and the like, to slurry not dewatered in a settling tank, to decrease an intermolecular binding force between the sludge and water and generate combustible gas, thereby using the generated combustible gas in an incinerator as fuel for incinerating the sludge deprived of the combustible gas.
  • wastewater is treated in such a way as to be biologically decomposed while passing through a bioreactor including an anaerobic tank and an aerobic tank, etc. Then, the treated wastewater is supplied to a settling tank and divided into liquid and solid. Next, after high- performance liquid is recovered, a part of settled sludge is re-supplied into the bioreactor to maintain a proper concentration of microorganism in the bioreactor, and remnant sludge is thickened in a sludge thickener. Thereupon, after chemicals are added to the sludge in a chemical mixer, the sludge is dewatered in a dewatering tank.
  • a cake formed after dewatering is reclaimed or incinerated.
  • secondary water pollution is likely to occur in the course of separating the sludge or depending upon an amount of chemicals when adding chemicals in the chemical mixer. Further, the water dewatered in the dewatering process can cause the secondary water pollution.
  • the sludge produced in the wastewater treatment procedure is reclaimed or dumped into the sea, since serious soil pollution or water pollution is caused, regulations have been established to limit reclamation or ocean- dumping of sludge. For this reason, these days, an incineration method is being mainly used.
  • the incinerating method suffers from defects in that, since a substantial amount of water is contained in the sludge, a great deal of energy, that is, fuel (fossil fuel) is required to remove the water from the sludge, rendering economic efficiency poor.
  • an object of the present invention is to provide a sludge treatment system which applies, in a vaporizing chamber, heat and various waves to slurry settled in and separated from a settling tank, to decrease an intermolecular binding force between the sludge and water and generate combustible gas, so that the generated combustible gas can be used in an incinerator for incinerating the sludge deprived of the combustible gas and a dewatering process can be omitted due to incineration of the sludge after generation of combustible gas, thereby minimizing a sludge incineration cost and water pollution.
  • a sludge treatment system comprising the processes of: separating sludge settled in a settling tank, after wastewater is treated in such a way as to be biologically decomposed while passing through a bioreactor including an anaerobic tank and an aerobic tank, and the treated wastewater is supplied .to the settling tank to be divided into liquid and solid; applying, in a vaporizer, heat and various waves including very high frequencies, very low frequencies, magnetic waves, electronic waves and ultrasonic waves to the separated slurry, to decrease an intermolecular binding force between the sludge and water and generate combustible gas; and feeding the resultant sludge deprived of the combustible gas into an incinerator, and incinerating the resultant sludge using combustible gas generated in the vaporizer as fuel.
  • FIG. 1 is a block diagram illustrating process flow in a sludge treatment system in accordance with an embodiment of the present invention
  • FIG. 2 is a partial enlarged cross-sectional view illustrating the sludge treatment system according to the present invention.
  • FIG. 1 is a block diagram illustrating process flow in a sludge treatment system in accordance with an embodiment of the present invention
  • FIG 2 is a partial enlarged cross-sectional view illustrating the sludge treatment system according to the present invention.
  • a sludge separating process is implemented in a manner such that sludge settled in a settling tank 10 is separated, after wastewater is treated in such a way as to be biologically decomposed while passing through a bioreactor including an anaerobic tank 1 and an aerobic tank 2, and the treated wastewater is supplied to the settling tank 10 to be divided into liquid and solid.
  • a bioreactor including an anaerobic tank 1 and an aerobic tank 2
  • the treated wastewater is supplied to the settling tank 10 to be divided into liquid and solid.
  • the sludge separated as described above is vaporized in a vaporizer 20.
  • the vaporizer 20 comprises a cylinder 21.
  • a feeding screw 22 is disposed in the cylinder 21.
  • the cylinder 21 has an inlet opening 23 a which is defined through an upper wall at one end of the cylinder 21, an outlet opening 23b which is defined through a lower wall at the other end of the cylinder 21, and a gas discharge opening
  • Wave generating devices 25 through 29 for generating very high frequencies, very low frequencies, magnetic waves, electronic waves and ultrasonic waves are installed on the wall of the cylinder 21.
  • the magnetic wave generating device 27 comprises coils 271 wound on an outer surface of the cylinder 21, and permanent magnets 272 secured to the feeding screw 22.
  • a duct 32 is placed around the cylinder 21 to apply heat of a high temperature to the cylinder 21. If the sludge is inputted through the inlet opening 23a of the vaporizer 20, the sludge is moved by the feeding screw 22 toward the other end of the cylinder 21 and then discharged through the outlet opening 23b.
  • the magnetic wave generating device 27 is operated in a manner such that the permanent magnets 272 cooperate with the coils 271 wound on the cylinder 21 while the feeding screw 22 is rotated, to generate magnetic waves.
  • the heat of a high temperature is applied to the cylinder 21 and conducted through the wall of the cylinder 21, the water and sludge are heated to generate vapors.
  • the vapors generated through this action comprise hydrogen and oxygen analyzed from water and combustible gases such as ammonia and so forth analyzed from the sludge.
  • the separated combustible gases are discharged and collected through the gas discharge port 24 which is defined through the upper wall at the middle portion of the cylinder 21.
  • the sludge containing water not vaporized in the vaporizer 20 is discharged through the outlet port 23b and fed into an incinerator 30, and the combustible gases collected in the vaporizer 20 is also supplied into the incinerator 30 to be used as fuel for incinerating sludge.
  • the combustible gases collected and supplied into the incinerator 30 have a calorific value which is sufficient to incinerate the sludge without additional supply of fuel.
  • the heat remaining after incinerating the sludge in the incinerator 30 is supplied into the vaporizer 20 to be used in vaporizing the water and sludge.
  • the sludge incineration system provides advantages in that heat and various waves such as very high frequencies, very low frequencies, magnetic waves, electronic waves, ultrasonic waves, and the like, are applied in a vaporizing chamber to the slurry settled in and separated from a settling tank, to decrease an intermolecular binding force between the sludge and water and generate combustible gas, so that the generated combustible gas can be used in an incinerator as fuel for incinerating the sludge not vaporized in the vaporizing chamber, thereby ensuring that sludge is incinerated by burning combustible gas generated in the sludge itself without using separate fuel.
  • heat and various waves such as very high frequencies, very low frequencies, magnetic waves, electronic waves, ultrasonic waves, and the like

Abstract

Disclosed is a sludge treatment system. Heat and various waves such as very high frequencies, very low frequencies, magnetic waves, electronic waves, ultrasonic waves, and the like, are applied in a vaporizing chamber to the slurry settled in and separated from a settling tank, to decrease an intermolecular binding force between the sludge and water and generate combustible gas, so that the generated combustible gas can be used in an incinerator as fuel for incinerating the sludge not vaporized in the vaporizing chamber, thereby ensuring that sludge is incinerated by burning combustible gas generated in the sludge itself without using separate fuel. Therefore, it is possible to minimize a cost required for incinerating sludge. Further, because the generated combustible gas has a high calorific value, it is possible to suppress the generation of a noxious substance such as dioxin while incinerating sludge.

Description

SLUDGE TREATMENT SYSTEM AND CARBURETER
Background of Invention Technical Field The present invention relates to a sludge treatment system, and more particularly, to a sludge treatment system which applies, in a vaporizing chamber, heat and various waves such as very high frequencies, very low frequencies, magnetic waves, electronic waves, ultrasonic waves, and the like, to slurry not dewatered in a settling tank, to decrease an intermolecular binding force between the sludge and water and generate combustible gas, thereby using the generated combustible gas in an incinerator as fuel for incinerating the sludge deprived of the combustible gas.
Background Art In a conventional wastewater treatment procedure, wastewater is treated in such a way as to be biologically decomposed while passing through a bioreactor including an anaerobic tank and an aerobic tank, etc. Then, the treated wastewater is supplied to a settling tank and divided into liquid and solid. Next, after high- performance liquid is recovered, a part of settled sludge is re-supplied into the bioreactor to maintain a proper concentration of microorganism in the bioreactor, and remnant sludge is thickened in a sludge thickener. Thereupon, after chemicals are added to the sludge in a chemical mixer, the sludge is dewatered in a dewatering tank.
A cake formed after dewatering is reclaimed or incinerated. However, in the conventional wastewater treatment procedure, secondary water pollution is likely to occur in the course of separating the sludge or depending upon an amount of chemicals when adding chemicals in the chemical mixer. Further, the water dewatered in the dewatering process can cause the secondary water pollution. Meanwhile, in the case that the sludge produced in the wastewater treatment procedure is reclaimed or dumped into the sea, since serious soil pollution or water pollution is caused, regulations have been established to limit reclamation or ocean- dumping of sludge. For this reason, these days, an incineration method is being mainly used. Nevertheless, the incinerating method suffers from defects in that, since a substantial amount of water is contained in the sludge, a great deal of energy, that is, fuel (fossil fuel) is required to remove the water from the sludge, rendering economic efficiency poor.
Disclosure of the Invention Therefore, the present invention has been made in view of the above- mentioned problems, and an object of the present invention is to provide a sludge treatment system which applies, in a vaporizing chamber, heat and various waves to slurry settled in and separated from a settling tank, to decrease an intermolecular binding force between the sludge and water and generate combustible gas, so that the generated combustible gas can be used in an incinerator for incinerating the sludge deprived of the combustible gas and a dewatering process can be omitted due to incineration of the sludge after generation of combustible gas, thereby minimizing a sludge incineration cost and water pollution. In order to achieve the above object, according to the present invention, there is provided a sludge treatment system comprising the processes of: separating sludge settled in a settling tank, after wastewater is treated in such a way as to be biologically decomposed while passing through a bioreactor including an anaerobic tank and an aerobic tank, and the treated wastewater is supplied .to the settling tank to be divided into liquid and solid; applying, in a vaporizer, heat and various waves including very high frequencies, very low frequencies, magnetic waves, electronic waves and ultrasonic waves to the separated slurry, to decrease an intermolecular binding force between the sludge and water and generate combustible gas; and feeding the resultant sludge deprived of the combustible gas into an incinerator, and incinerating the resultant sludge using combustible gas generated in the vaporizer as fuel.
Brief Description of Drawings Further objects and advantages of the invention can be more fully understood from the following detailed description when taken in conjunction with the accompanying drawings in which: FIG. 1 is a block diagram illustrating process flow in a sludge treatment system in accordance with an embodiment of the present invention; and FIG. 2 is a partial enlarged cross-sectional view illustrating the sludge treatment system according to the present invention.
Best Mode for Carrying Out the Invention Reference will now be made in greater detail to a preferred embodiment of the invention, an example of which is illustrated in the accompanying drawings.
Wherever possible, the same reference numerals will be used throughout the drawings and the description to refer to the same or like parts. FIG. 1 is a block diagram illustrating process flow in a sludge treatment system in accordance with an embodiment of the present invention, and FIG 2 is a partial enlarged cross-sectional view illustrating the sludge treatment system according to the present invention. As can be readily seen from the drawings, in a sludge treatment system in accordance with an embodiment of the present invention, a sludge separating process is implemented in a manner such that sludge settled in a settling tank 10 is separated, after wastewater is treated in such a way as to be biologically decomposed while passing through a bioreactor including an anaerobic tank 1 and an aerobic tank 2, and the treated wastewater is supplied to the settling tank 10 to be divided into liquid and solid. In the sludge separating process, since the sludge settled in the settling tank 10 is separated along with water, a great amount of water is contained in the sludge. However, in the present invention, because a dewatering process for separating only the sludge is not implemented, secondary water pollution is avoided, which is otherwise caused in the conventional art due to dewatering of the sludge. The sludge separated as described above is vaporized in a vaporizer 20. The vaporizer 20 comprises a cylinder 21. A feeding screw 22 is disposed in the cylinder 21. The cylinder 21 has an inlet opening 23 a which is defined through an upper wall at one end of the cylinder 21, an outlet opening 23b which is defined through a lower wall at the other end of the cylinder 21, and a gas discharge opening
24 which is defined through the upper wall at a middle portion of the cylinder 21.
Wave generating devices 25 through 29 for generating very high frequencies, very low frequencies, magnetic waves, electronic waves and ultrasonic waves are installed on the wall of the cylinder 21. At this time, the magnetic wave generating device 27 comprises coils 271 wound on an outer surface of the cylinder 21, and permanent magnets 272 secured to the feeding screw 22. A duct 32 is placed around the cylinder 21 to apply heat of a high temperature to the cylinder 21. If the sludge is inputted through the inlet opening 23a of the vaporizer 20, the sludge is moved by the feeding screw 22 toward the other end of the cylinder 21 and then discharged through the outlet opening 23b. While the sludge passes through the vaporizer 20, as very high frequencies, very low frequencies, magnetic waves, electronic waves and ultrasonic waves generated from the wave generating devices 25 through 29 are applied to the sludge, an intermolecular binding force between the sludge and water is decreased. At this time, the magnetic wave generating device 27 is operated in a manner such that the permanent magnets 272 cooperate with the coils 271 wound on the cylinder 21 while the feeding screw 22 is rotated, to generate magnetic waves. As the heat of a high temperature is applied to the cylinder 21 and conducted through the wall of the cylinder 21, the water and sludge are heated to generate vapors. That is to say, since heat is applied in a state wherein an intermolecular binding force between the sludge and water is decreased, it is possible to accomplish high vaporization efficiency with a low calorie. The vapors generated through this action comprise hydrogen and oxygen analyzed from water and combustible gases such as ammonia and so forth analyzed from the sludge. The separated combustible gases are discharged and collected through the gas discharge port 24 which is defined through the upper wall at the middle portion of the cylinder 21. The sludge containing water not vaporized in the vaporizer 20 is discharged through the outlet port 23b and fed into an incinerator 30, and the combustible gases collected in the vaporizer 20 is also supplied into the incinerator 30 to be used as fuel for incinerating sludge. The combustible gases collected and supplied into the incinerator 30 have a calorific value which is sufficient to incinerate the sludge without additional supply of fuel. Also, the heat remaining after incinerating the sludge in the incinerator 30 is supplied into the vaporizer 20 to be used in vaporizing the water and sludge.
Industrial Applicability As apparent from the above descriptions, the sludge incineration system according to the present invention provides advantages in that heat and various waves such as very high frequencies, very low frequencies, magnetic waves, electronic waves, ultrasonic waves, and the like, are applied in a vaporizing chamber to the slurry settled in and separated from a settling tank, to decrease an intermolecular binding force between the sludge and water and generate combustible gas, so that the generated combustible gas can be used in an incinerator as fuel for incinerating the sludge not vaporized in the vaporizing chamber, thereby ensuring that sludge is incinerated by burning combustible gas generated in the sludge itself without using separate fuel. As a consequence, it is possible to minimize a cost required for incinerating sludge. Further, because the generated combustible gas to be used for incinerating sludge has a high calorific value, it is possible to suppress the generation of a noxious substance such as dioxin while incinerating sludge. Also, due to the fact that the sludge is separated from the settling tank without separately performing a dewatering process, it is possible to prevent water pollution which is otherwise caused in the course of dewatering sludge in the conventional art. Although a preferred embodiment of the present invention has been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims

What Is Claimed Is: L A sludge treatment system comprising the processes of: separating sludge settled in a settling tank, after wastewater is treated in such a way as to be biologically decomposed while passing through a bioreactor including an anaerobic tank and an aerobic tank, and the treated wastewater is supplied to the settling tank to be divided into liquid and solid; applying, in a vaporizer, heat and various waves including very high frequencies, very low frequencies, magnetic waves, electronic waves and ultrasonic waves to the separated slurry, to decrease an intermolecular binding force between the sludge and water and generate combustible gas; and feeding the resultant sludge deprived of the combustible gas into an incinerator, and incinerating the resultant sludge using combustible gas generated in the vaporizer as fuel.
2. A vaporizer comprising: a cylinder having an inlet opening which is defined through an upper wall at one end of the cylinder, an outlet opening which is defined through a lower wall at the other end of the cylinder, and a gas discharge opening which is defined through the upper wall at a middle portion of the cylinder; a feeding screw disposed in the cylinder; wave generating devices installed on a wall of the cylinder for generating very high frequencies, very low frequencies, magnetic waves, electronic waves and ultrasonic waves; and heating means arranged around the cylinder for applying heat to the cylinder.
PCT/KR2004/001633 2003-08-06 2004-07-02 Sludge treatment system and carbureter WO2005014494A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2003-0054500 2003-08-06
KR1020030054500A KR20050015598A (en) 2003-08-06 2003-08-06 Sludge treatment system using collected combustible gas in incineration of non-vaporized sludge after separating combustible gas by simultaneously applying various waves and heat to sludge settled in sedimentation tank in vaporizer

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WO2005014494A1 true WO2005014494A1 (en) 2005-02-17

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008012770A2 (en) * 2006-07-25 2008-01-31 Brian Anthony Evans Biomass reactor
WO2009060461A2 (en) * 2007-11-10 2009-05-14 Genova Ltd Method and apparatus for producing fuel gas from biomass
CN102676386A (en) * 2011-03-07 2012-09-19 中国科学院过程工程研究所 Ultrasonic low frequency-high frequency coupled atomization biological reaction device
CN108675580A (en) * 2018-07-03 2018-10-19 成都诺德源环保科技有限公司 A kind of sludge treatment equipment and trash-removal device
CN108911456A (en) * 2018-08-07 2018-11-30 李明泽 A kind of new process for treating oil-containing sludge and system
CN110526552A (en) * 2019-08-30 2019-12-03 广东沪利环境科技发展有限公司 A kind of sludge treating system
CN111533407A (en) * 2020-04-13 2020-08-14 浙江大学 Method for recovering phosphorus from sludge alkaline fermentation liquor

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KR100768516B1 (en) * 2006-02-09 2007-10-19 (주)상원이티씨 The sludge decrease device which uses a ultrasonics
KR101159494B1 (en) * 2011-08-08 2012-06-22 주식회사 마이크로웨이브테크놀로지 tunnel type a drying machine
KR101468519B1 (en) * 2013-06-25 2014-12-03 채명수 Sewage sludge dewatering equipment

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JPH04331000A (en) * 1991-05-01 1992-11-18 Kubota Corp Dehydrating method of sludge
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JPH10300060A (en) * 1997-04-30 1998-11-13 Oogawara Kakoki Kk Method and apparatus for processing incinerator waste gas
KR20000065988A (en) * 1999-04-12 2000-11-15 한상배 Dewatering method of sludge and dewaterer

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JPS57135100A (en) * 1981-02-14 1982-08-20 Mitsui Eng & Shipbuild Co Ltd Heat treatment of sludge
JPH04331000A (en) * 1991-05-01 1992-11-18 Kubota Corp Dehydrating method of sludge
US5186840A (en) * 1991-08-26 1993-02-16 Rdp Company Process for treating sewage sludge
JPH05115900A (en) * 1991-10-24 1993-05-14 Ishigaki Mech Ind Co Method and device for dehydration of sludge
KR19980055544A (en) * 1996-12-28 1998-09-25 박삼근 Method for treating organic matter such as food waste by compression and microwave heat drying and apparatus
JPH10300060A (en) * 1997-04-30 1998-11-13 Oogawara Kakoki Kk Method and apparatus for processing incinerator waste gas
KR20000065988A (en) * 1999-04-12 2000-11-15 한상배 Dewatering method of sludge and dewaterer

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008012770A2 (en) * 2006-07-25 2008-01-31 Brian Anthony Evans Biomass reactor
WO2008012770A3 (en) * 2006-07-25 2008-07-10 Brian Anthony Evans Biomass reactor
WO2009060461A2 (en) * 2007-11-10 2009-05-14 Genova Ltd Method and apparatus for producing fuel gas from biomass
WO2009060461A3 (en) * 2007-11-10 2009-11-26 Genova Ltd Method and apparatus for producing fuel gas from biomass
CN102676386A (en) * 2011-03-07 2012-09-19 中国科学院过程工程研究所 Ultrasonic low frequency-high frequency coupled atomization biological reaction device
CN102676386B (en) * 2011-03-07 2014-06-04 中国科学院过程工程研究所 Ultrasonic low frequency-high frequency coupled atomization biological reaction device
CN108675580A (en) * 2018-07-03 2018-10-19 成都诺德源环保科技有限公司 A kind of sludge treatment equipment and trash-removal device
CN108911456A (en) * 2018-08-07 2018-11-30 李明泽 A kind of new process for treating oil-containing sludge and system
CN108911456B (en) * 2018-08-07 2021-11-05 李明泽 Novel oily sludge treatment method and system
CN110526552A (en) * 2019-08-30 2019-12-03 广东沪利环境科技发展有限公司 A kind of sludge treating system
CN111533407A (en) * 2020-04-13 2020-08-14 浙江大学 Method for recovering phosphorus from sludge alkaline fermentation liquor

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