WO2009148113A1 - Procédé de traitement de boues - Google Patents

Procédé de traitement de boues Download PDF

Info

Publication number
WO2009148113A1
WO2009148113A1 PCT/JP2009/060239 JP2009060239W WO2009148113A1 WO 2009148113 A1 WO2009148113 A1 WO 2009148113A1 JP 2009060239 W JP2009060239 W JP 2009060239W WO 2009148113 A1 WO2009148113 A1 WO 2009148113A1
Authority
WO
WIPO (PCT)
Prior art keywords
sludge
dimethyl ether
water
product
molded product
Prior art date
Application number
PCT/JP2009/060239
Other languages
English (en)
Japanese (ja)
Inventor
英輝 神田
尚夫 牧野
真由美 森田
敬三 竹上
昭雄 吉越
Original Assignee
財団法人電力中央研究所
月島機械株式会社
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 財団法人電力中央研究所, 月島機械株式会社 filed Critical 財団法人電力中央研究所
Priority to CN200980121190XA priority Critical patent/CN102046540B/zh
Publication of WO2009148113A1 publication Critical patent/WO2009148113A1/fr

Links

Images

Classifications

    • 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
    • C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • C02F11/147—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using organic substances

Definitions

  • the present invention relates to a sludge treatment method, and more particularly, a treatment method capable of efficiently dewatering and deodorizing sludge having a high water content, and promoting reuse as fuel such as fuel for thermal power generation. About.
  • a method for treating sludge generated from wastewater treatment facilities a method is generally used in which after dehydration, the incinerated ash is incinerated and disposed of in a landfill site.
  • this method it is necessary to perform a pretreatment appropriately combining a concentration treatment, a dehydration treatment, and a drying treatment for a large amount of water in the sludge for incineration, and the treatment requires a lot of energy.
  • sewage sludge a type of sludge, is discharged in large quantities, but because there is a limit to securing landfills, technology for reuse such as fuelization has also been desired. .
  • the basic sludge treatment process is as follows. First, what is concentrated by operations such as sedimentation and centrifugation is subjected to mechanical dehydration with a filter, a centrifuge, a belt press or the like to obtain a sludge cake having a moisture concentration of about 80%. This sludge cake is reclaimed at the final disposal site or incinerated with incineration equipment, and the remaining incineration ash is reclaimed at the final disposal site.
  • the mechanical dehydration process is most required for efficiency and achievement. This is because the dewatered sludge cake is reduced in volume as much as possible and can be easily processed, and in incineration, the amount of added auxiliary agent and the like can be reduced and post-treatment that is advantageous in terms of energy can be performed.
  • the water content in the sludge after dehydration by a machine is generally 75 to 85%.
  • the water in the sludge is in close contact with the sludge particles, and the form thereof is generally (1) pore water (water filling the space surrounded by sludge particles, (2) capillary-bound water (sludge particles).
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2000-290673 (Patent Document 1)
  • coal is assumed as a water-containing solid, and a water-containing solid slurried in oil. Is heated at 150 ° C. or higher to evaporate water-containing solid water.
  • liquid oil that hardly evaporates at the operating temperature as the heating medium, only water is selectively evaporated, so that the water vapor is not diluted and the density of latent heat of vaporization that the water vapor has does not decrease. For this reason, it is considered that the latent heat of vaporization of water vapor can be efficiently recovered by the reforming method in oil.
  • An object of the present invention is to provide means for efficiently treating sludge, particularly high moisture content sludge while achieving energy saving, and enabling reuse as a resource after treatment.
  • the present inventors have easily converted dimethyl ether (DME) from a liquid (liquefied product) to a gas without setting severe conditions due to its properties. Focused on being able to make it.
  • DME dimethyl ether
  • a certain amount of extraction and dehydration can be achieved, but a large amount of water still remains.
  • the present inventors have found that dehydration can be achieved by diffusing physicochemically with each other by flowing dimethyl ether after making the sludge thickness constant.
  • the sludge can be efficiently dehydrated by performing the molding process as a pretreatment, and further, the separated substance is dehydrated to the extent that it can be used as a resource such as fuel. And found the present invention.
  • a method for treating sludge comprising the following steps (A) and (B): (A) A step of forming sludge into a molded product having a surface-to-surface distance of 2 to 20 mm (B) A step of bringing the molded product into contact with a liquefied product of dimethyl ether and extracting moisture in the molded product [2]
  • the sludge is formed by extrusion molding using a molding apparatus attached to the tip of a mud pipe, and the molding apparatus is an apparatus capable of continuously press-fitting a molded body after molding into a container. Processing method.
  • a fuel production method comprising the following steps (A) and (B) for dewatering sludge: (A) A step of forming sludge into a molded product having a surface-to-surface distance of 2 to 20 mm (B) A step of contacting the molded product with dimethyl ether [4] Molding of sludge to a surface-to-surface distance of 2 to 20 mm
  • a sludge treatment system comprising: a molding machine that forms a body, and an extraction tank that contacts a liquefied product of dimethyl ether with the molded body to extract moisture in the molded body.
  • the contact area of dimethyl ether with sludge can be increased and the treatment efficiency can be improved by limiting the thickness to allow mutual diffusion, so that dehydration can be efficiently carried out under energy-saving conditions,
  • the molding can be continuously performed with the treatment conditions with dimethyl ether being constant.
  • FIG. 1 is an explanatory diagram showing an example of the processing system of the present invention.
  • FIG. 2 is an explanatory diagram showing an example of the processing system of the present invention.
  • FIG. 3 is an explanatory diagram showing an example of the processing system of the present invention.
  • FIG. 4 is an explanatory diagram showing an example of the processing system of the present invention.
  • a to C Dehydration system 11 Sludge 12 Molding machine 13 Molded body 14 Extraction tank 15, 26 Dimethyl ether (liquid) 16 Storage tank 17 Sludge after dehydration 18 Mud pipe 19 Dimethyl ether 20 containing water in sludge Distillation tower 21 Water in sludge 22, 24 Dimethyl ether (gas) 23 Compressor 25 Cooler 27 Heat exchanger 28 Liquid feed pump
  • the sludge targeted by the present invention means sludge discharged from equipment (drainage treatment equipment) for treating domestic wastewater, industrial wastewater and other wastewater, and includes dewatered cake that has been mechanically dehydrated.
  • a method for obtaining a dehydrated cake from sludge include a method using a device including a filter, a screw, a centrifuge, a roll, and the like (filtration concentration, solid-liquid separation, pressing, etc.).
  • the dehydrated cake used in the present invention can be obtained by appropriately selecting these methods, and is preferably obtained by combining filtration concentration and pressing.
  • Examples of the apparatus for producing the dehydrated cake include a belt press, a centrifugal dehydrator, and a screw press.
  • the water ratio in the sludge (including dehydrated cake) is generally 75 to 85% by weight (about 78% by weight).
  • the dehydration system of the present invention relates to a system for dewatering sludge using dimethyl ether.
  • Dimethyl ether has a boiling point of ⁇ 24.8 ° C. at 1 atmosphere and is a gas at atmospheric pressure of ⁇ 10 ° C. to 50 ° C.
  • JP-A-11-130714, JP-A-10-19509, JP-A-10-195008, JP-A-10-182527 to JP-A-10-182535 are examples of highly efficient dimethyl ether production methods and apparatuses.
  • dimethyl ether can be used in combination with other substances that are gases under normal temperature and normal pressure conditions.
  • the substance that is a gas under normal temperature and normal pressure conditions is a substance that is a gas under conditions of 25 ° C. and 1 atmosphere, and is preferably a substance that is a gas under conditions of 0 ° C. and 1 atmosphere.
  • Most preferred are substances that are in a gaseous state under conditions of 1 and 1 atmosphere and are also gaseous under conditions of 0 ° C. and 1 atmosphere. Examples thereof include ethyl methyl ether, formaldehyde, ketene, acetaldehyde, butane, propane and the like, and these may be used alone or in combination of two or more.
  • the sludge treatment method of the present invention is characterized by having the following steps (A) and (B).
  • (A) A step of forming sludge into a molded product having a surface-to-surface distance of 2 to 20 mm.
  • (B) A step of bringing the molded product into contact with a liquefied product of dimethyl ether and extracting moisture in the molded product.
  • the treatment method of the present invention when the sludge is dehydrated, by performing the above steps (A) and (B), dimethyl ether is caused to flow through the sludge as an extraction medium, thereby causing physicochemical interdiffusion, Sludge can be dehydrated.
  • the present invention utilizes the fact that dimethyl ether can be easily vaporized and converted from a liquid (liquefied product) to a gas without setting severe conditions due to its properties.
  • step (A) sludge is molded so as to form a molded body having a surface-to-surface distance of 2 to 20 mm, preferably 4 to 10 mm.
  • the sludge can be sufficiently dehydrated, and the contact condition with the substance that is liquid at room temperature and normal pressure in the step (B) can be made constant regardless of the moisture in the sludge.
  • the “distance between surfaces” means the shortest distance among the averages of the distances (the length of handing over) between the surface on which the molded body is located and the surface on the opposite side (facing the substantially vertical direction).
  • “Surface with a molded object” and “surface on the opposite side” mean a contact surface with dimethyl ether in the next step (B).
  • “Shortest distance” means, for example, in the case of a columnar (string-shaped) molded body (the cross section may be either a circle or a polygon), the distance (height) between the columnar bottom and top surfaces, Among the distances between them (meaning the diameter when the cross section is a circle), the shorter one is the “surface distance”.
  • the “average distance” is, for example, in the case of an indeterminate shaped body, the average of the shortest distance and the longest distance is the average distance.
  • the shape of the molded body is not particularly limited, and examples thereof include a rectangular parallelepiped, a square shape such as a polygon, a cylindrical shape, a string shape, and a rod shape.
  • the molding mode is not particularly limited, and examples thereof include extrusion molding and compression molding. Among these, extrusion molding is preferable.
  • extrusion molding is preferable.
  • a molding apparatus extrusion molding apparatus
  • Such a molding apparatus is preferably an apparatus that can be continuously press-fitted into a container.
  • step (B) the molded body is brought into contact with dimethyl ether, and water in the molded body is extracted.
  • the contact method is not particularly limited, and examples thereof include a method in which a molded body of dimethyl ether and sludge, which is a gas substance under normal temperature and normal pressure conditions, is contained in a container and contacted.
  • the ratio of the amount of the molded body and the liquid can be determined as appropriate. For example, at least the amount required to dissolve the water in the sludge (usually around 78% by weight) to obtain a highly water-containing liquefied product. It is preferable that That is, it is preferable to contact a dimethyl ether liquid, which is a gas substance under normal temperature and normal pressure conditions, with a water-containing substance at a weight ratio of 233: 1 to 233: 50.
  • the saturated solubility of water with respect to dimethyl ether liquefaction at 20 ° C. is 7.2 wt%, it is appropriately determined in such an amount that the concentration of sludge with respect to dimethyl ether becomes 9% by weight or more when converted with the amount of water in the above sludge. Can do.
  • the upper limit of the concentration of the molded body with respect to dimethyl ether is not particularly specified, but even if the amount of the molded body is too small, it may be difficult to contact dimethyl ether, so it can be, for example, 20% by weight or less.
  • the method of maintaining a liquefied state is not specifically limited, The method of maintaining a liquefied material by saturated vapor pressure is desirable.
  • the temperature condition at the time of contact is desirably set appropriately in the range of ⁇ 10 ° C. to 50 ° C., particularly 0 to 40 ° C.
  • the contact time depends on the conditions such as the type and amount of the hydrated substance or liquefied substance, the contact method, etc., and it is difficult to uniquely define it, but the moisture in the hydrated substance is sufficient for the liquefied substance.
  • the time for dissolution can be set as appropriate.
  • Conditions other than the temperature and pressure at the time of contact of the dimethyl ether liquefied product with the molded body are such that the water in the hydrous substance is dissolved in the liquefied product. Conditions can be set as appropriate.
  • the contact method may be any method employed in a normal dehydration method, such as immersing the molded body in a liquefied product or circulating the liquefied product through the molded product.
  • the molded product is filled in a plurality of containers, and the liquefied product of dimethyl ether is brought into contact with the molded product by a contact method in which the liquefied product is brought into countercurrent contact. And the amount of energy used to remove moisture can be reduced.
  • the mixture of the liquefied product of dimethyl ether and the water in the molded product and the dewatered sludge are separated.
  • These separations can be performed by conventional methods such as solid-liquid separation.
  • the solid-liquid separation include two-layering by standing and fractionation by membrane treatment.
  • the method of solid-liquid separation is not particularly limited, but an example includes a method in which the liquid layer is attached to the container or removed by suction with a pump or the like separate from the container.
  • the post-dewatered sludge thus obtained has been dehydrated to reduce malodor and can be used for other purposes such as fuel for thermal power generation and boilers, cement materials and the like.
  • the mixture of the dimethyl ether liquefied product and the water in the molded body may be treated as a drainage as it is, but if necessary, only dimethyl ether can be extracted from the mixture. Extraction of dimethyl ether can be performed by utilizing the vaporization phenomenon of dimethyl ether.
  • Vaporization means changing a liquid (liquefied product) into a gas. Vaporization of a substance that is a gas under normal temperature and normal pressure conditions in a liquefied material containing a high amount of water can be performed by increasing the temperature condition or decreasing the pressure condition as compared with the step (B).
  • the temperature condition it is preferable to raise the temperature to a temperature exceeding the boiling point of dimethyl ether, but in the present invention, a substance that is a gas under normal temperature and normal pressure conditions is used. It can be vaporized under temperature conditions close to. That is, it is possible to vaporize only by returning from the cooling state of the step (B) to the room temperature state rather than heating.
  • the temperature condition for vaporization depends on the liquefied material to be used and the pressure condition, but is preferably a normal temperature state, ⁇ 50 ° C. to 25 ° C., particularly ⁇ 25 ° C. to 10 ° C. When the pressure condition is lowered, the condition is lower than the saturated vapor pressure, and can be appropriately determined according to the temperature condition.
  • the treated product after extraction of dimethyl ether from a mixture of liquefied product of dimethyl ether and moisture in the molded product is usually a liquid with a bad odor. This liquid can be reused as water by treating it as necessary.
  • the extracted dimethyl ether vapor can be liquefied again and returned to the system for reuse.
  • Liquefaction can be achieved by lowering temperature conditions or increasing pressure conditions than vaporization.
  • the sludge treatment system of the present invention includes at least a molding machine and an extraction tank.
  • the molding machine is for carrying out the step (A) of the sludge treatment method of the present invention
  • the extraction tank is for carrying out the step (B).
  • the molding machine molds sludge so as to form a molded body having a surface-to-surface distance of 2 to 20 mm.
  • the molding conditions are as described for step (A) of the processing method of the present invention.
  • An example of the molding machine is an extrusion molding machine.
  • Examples of the extruder include those equipped with a mud pipe that transports sludge to the extruder. It is preferable that the apparatus is capable of continuously extruding the sludge sent through the mud pipe and continuously press-fitting the resulting molded body.
  • the extraction tank is a tank in which liquefied dimethyl ether is brought into contact with the molded body to extract moisture in the molded body.
  • the extraction conditions are as described for step (B) of the processing method of the present invention.
  • the extraction tank can be usually realized by appropriately including a temperature and pressure adjusting means for holding dimethyl ether in a liquid state in the tank, for example, a heat exchanger. Moreover, it may consist of two or more independent tanks, and these may be provided as a common tank. Further, as described above for the contact method of dimethyl ether, it is possible to immerse the molded body in dimethyl ether, distribute it, etc., but it is preferable to distribute it, and among them, countercurrent contact is preferable.
  • the sludge treatment system of the present invention may further include a distillation tower (distiller).
  • a distillation tower disiller
  • dimethyl ether can be separated as a vaporized product from a mixture of dimethyl ether liquefied product and sludge-derived water.
  • a distiller is realizable as what equips with the adjustment means of the temperature and pressure for vaporizing dimethyl ether, for example, a heat exchanger suitably.
  • the treatment system of the present invention preferably further includes a compressor and a cooler.
  • a compressor and a cooler thereby, the vaporized product of dimethyl ether separated by the distillation tower can be liquefied again, and can be recycled to a dimethyl ether liquefied product.
  • the compressor compresses the vaporized dimethyl ether vaporized and extracted in the distillation column by pressurization or the like.
  • a compressor is realizable as what is equipped with the adjustment means of the temperature and pressure for vaporizing dimethyl ether, for example, a heat exchanger suitably.
  • the cooler cools dimethyl ether compressed by the compressor. Dimethyl ether vapor is condensed and liquefied by cooling.
  • the cooler can be realized by appropriately providing a temperature or pressure adjusting means for liquefying a gaseous substance under normal temperature and normal pressure conditions.
  • the extraction tank and the distiller, compressor and cooler provided as necessary can be connected in series in this order with piping provided with a pump as necessary. .
  • a storage tank (buffer tank) that stores a gaseous substance under normal temperature and normal pressure conditions so that it can be supplied to the system, a heat exchanger (27) for temperature adjustment, and a treatment in the extraction tank
  • a liquid feed pump (28) or the like can be provided.
  • FIG. 1 The configuration of the processing system of the present invention and the process of processing using the apparatus will be described with reference to FIGS. First, the processing system A in FIG. 1 will be described, then only the portions different from the processing system A in the processing system B in FIG. 2 will be described, and similarly, only the portions different from the processing system B in the processing system C in FIG.
  • dimethyl ether 19 containing water in the sludge is sent to the distillation column 20.
  • the distillation tower 20 most of the dimethyl ether (liquid) in the dimethyl ether 19 containing the water in the sludge is vaporized, and the water derived from the sludge 11 (water in the sludge) 21 dissolved in the liquefied dimethyl ether is treated. Separated as a product. The moisture 21 in the sludge is dehydrated while reducing the malodor derived from the sludge.
  • dimethyl ether (gas) 22 separated in the distillation column 20 is compressed through the compressor 23, and the compressed gas 24 is cooled and liquefied by the cooler 25, and the cooler 25
  • the dimethyl ether (liquid) 26 that has exited is sent to the storage tank 16 again and circulates in the system.
  • the above-described treatment system of the present invention is useful as a sludge treatment apparatus.
  • the sludge treated in the treatment system of the present invention can be used as fuel such as fuel for thermal power generation.
  • Example 1 The sludge was continuously molded using a mince maker as an extrusion molding machine to obtain a cylindrical molded body (dehydrated sludge) having a surface-to-surface distance of 4 mm (diameter: 4 mm, length: several cm).
  • Dehydration and deodorization treatment was performed using the apparatus shown in FIG. 3.2 kg of dehydrated sludge formed into a cylindrical shape having an inner diameter of 15 cm and a length of 57 cm (volume: 10 L) and having a diameter of 4 mm and a length of several centimeters was put into a sealed state.
  • Dimethyl ether (liquid) 15 is sent from the DME storage tank 16 capable of storing a maximum of 150 L to the extraction tank by a liquid feed pump (maximum liquid feed amount is 0.4 m 3 / h) 28, and after absorbing moisture in the sludge, It was sent to the flash distillation column 20.
  • the temperature of the flash distillation column 20 is adjusted by a heat exchanger 27.
  • the inside of the flash distillation column 22 and the cooler 25 is filled with water at room temperature, and a spiral tube having an inner diameter of 15 mm is immersed, and when the dimethyl ether 19 containing water in the sludge passes through the spiral tube.
  • the dimethyl ether evaporated.
  • Table 1 shows the water content of the treated product (sludge 17 after dehydration) discharged from the extraction tank 14 and the concentrations of hydrogen sulfide, methyl mercaptan, methyl sulfide, and methyl disulfide together with the measured values before dehydration.
  • the dimethyl ether (gas) 22) vaporized after distillation in the flash distillation column 22 is pressurized with a compressor 23 (maximum gas feed rate is 30 Nm 3 / h) and then liquefied with water at room temperature in a cooler 25. It becomes dimethyl ether (liquid) 26 and can be filled in the DME reservoir 16 and reused.
  • Comparative Example 1 Except that the sludge was used as it was without being formed, it was put into an extraction tank in the same manner as in Example 1 and dehydrated.
  • Example 1 In Comparative Example 1 where the dewatering experiment was performed without molding the sludge, the moisture content of the sludge was 79% before the dehydration treatment, and 38% after the dehydration treatment with dimethyl ether. On the other hand, in Example 1, as is clear from the results in Table 1, the moisture content of the sludge was 79% before the dehydration treatment and decreased to 8% after the dehydration treatment with dimethyl ether.
  • Example 1 As for odor, in Example 1, it was confirmed that the odor of methyl mercaptan and methyl disulfide can be significantly suppressed.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

L'invention concerne des moyens permettant à la fois un traitement efficace de boues et la réutilisation des boues traitées en tant que ressource. Plus précisément, l'invention concerne un procédé de traitement de boues caractérisé en ce qu’il comporte l’étape (A) consistant à mouler les boues pour former des produits présentant des distances de surface à surface comprises entre 2 et 10 mm et l’étape (B) consistant à placer les produits en contact avec de l’oxyde de diméthyle liquéfié afin d’extraire l’eau des produits; l'invention concerne également un système de traitement de boues caractérisé en ce qu’il est équipé d’une machine de moulage servant à mouler les boues pour former des produits présentant des distances de surface à surface comprises entre 2 et 10 mm et d’une cuve d’extraction servant à placer les produits en contact avec de l’oxyde de diméthyle liquéfié afin d’extraire l’eau des produits.
PCT/JP2009/060239 2008-06-04 2009-06-04 Procédé de traitement de boues WO2009148113A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200980121190XA CN102046540B (zh) 2008-06-04 2009-06-04 污泥的处理方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008146541A JP5731733B2 (ja) 2008-06-04 2008-06-04 汚泥の処理方法
JP2008-146541 2008-06-04

Publications (1)

Publication Number Publication Date
WO2009148113A1 true WO2009148113A1 (fr) 2009-12-10

Family

ID=41398186

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/060239 WO2009148113A1 (fr) 2008-06-04 2009-06-04 Procédé de traitement de boues

Country Status (3)

Country Link
JP (1) JP5731733B2 (fr)
CN (1) CN102046540B (fr)
WO (1) WO2009148113A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6051308B2 (ja) * 2013-08-02 2016-12-27 株式会社日立製作所 固液分離装置、及びその方法
EP3372560B1 (fr) * 2015-11-25 2023-10-25 Southeast University Procédé de séchage de matières solides biologiques utilisant l'irradiation par micro-ondes et l'extraction par solvant

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5276631B2 (ja) * 2010-08-09 2013-08-28 一般財団法人電力中央研究所 底質の処理方法及び抽出装置
JP2014108408A (ja) * 2012-12-03 2014-06-12 Mitsubishi Heavy Ind Ltd Ｐｃｂ汚染汚泥又は残渣類の脱水処理装置及びそれを用いたｐｃｂ処理システム
JP2015188816A (ja) * 2014-03-28 2015-11-02 株式会社クボタ 吸収脱水装置および方法
CN105330125B (zh) * 2015-11-27 2018-05-15 东南大学 一种用于生物固体物质的超声波辐射溶剂萃取联用深度脱水的方法及装置
CN107857457A (zh) * 2016-09-22 2018-03-30 北京中科国通环保工程技术股份有限公司 用于降低含水和固体的物质中的水含量的方法和系统
CN111547990A (zh) * 2020-05-15 2020-08-18 河海大学 液态二甲醚溶解市政污泥中有机物和水并进行分离脱水的方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006198575A (ja) * 2005-01-24 2006-08-03 Central Res Inst Of Electric Power Ind 水分含有固体の水分除去方法およびシステム
JP2007083122A (ja) * 2005-09-20 2007-04-05 Central Res Inst Of Electric Power Ind 液化物を用いた含水物質の脱水方法
WO2008093706A1 (fr) * 2007-01-31 2008-08-07 Central Research Institute Of Electric Power Industry Procédé de traitement de substance aqueuse

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003101579A1 (fr) * 2002-06-03 2003-12-11 Central Research Institute Of Electric Power Industry Procede servant a retirer l'eau contenue dans un solide au moyen d'un materiau liquide
JP3957652B2 (ja) * 2003-03-26 2007-08-15 株式会社クボタ 産業用除湿乾燥機
JP2006341168A (ja) * 2005-06-08 2006-12-21 Shinzo Ishikawa 活性余剰汚泥の減量化処理方法
JP4585960B2 (ja) * 2005-11-18 2010-11-24 メタウォーター株式会社 油浴式汚泥乾燥機

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006198575A (ja) * 2005-01-24 2006-08-03 Central Res Inst Of Electric Power Ind 水分含有固体の水分除去方法およびシステム
JP2007083122A (ja) * 2005-09-20 2007-04-05 Central Res Inst Of Electric Power Ind 液化物を用いた含水物質の脱水方法
WO2008093706A1 (fr) * 2007-01-31 2008-08-07 Central Research Institute Of Electric Power Industry Procédé de traitement de substance aqueuse

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6051308B2 (ja) * 2013-08-02 2016-12-27 株式会社日立製作所 固液分離装置、及びその方法
EP3372560B1 (fr) * 2015-11-25 2023-10-25 Southeast University Procédé de séchage de matières solides biologiques utilisant l'irradiation par micro-ondes et l'extraction par solvant

Also Published As

Publication number Publication date
CN102046540A (zh) 2011-05-04
JP2009291697A (ja) 2009-12-17
CN102046540B (zh) 2012-11-14
JP5731733B2 (ja) 2015-06-10

Similar Documents

Publication Publication Date Title
JP5731733B2 (ja) 汚泥の処理方法
JP5607884B2 (ja) 含水物質の処理方法
JP4291772B2 (ja) 液化物質を用いた固体含有水分の除去方法
EP3372560B1 (fr) Procédé de séchage de matières solides biologiques utilisant l'irradiation par micro-ondes et l'extraction par solvant
JP2007083122A (ja) 液化物を用いた含水物質の脱水方法
KR102323843B1 (ko) 초임계 이산화탄소를 이용한 저온 슬러지 탈수건조 장치 및 방법
JP4365442B1 (ja) 石炭の改質方法
JP2009119378A (ja) 有機性廃棄物のメタン発酵処理方法及びメタン発酵処理システム
JP3849047B2 (ja) バイオスラッジのガス化方法
JP4542517B2 (ja) 液化物を用いた含油物質の脱油方法
KR101889896B1 (ko) 고수분 슬러지의 고성능 탈수 및 건조시스템
JP2010254743A (ja) 消化ガスのシロキサン除去装置およびシロキサン除去方法
JP3318483B2 (ja) 有機性汚泥の超臨界水酸化方法及びこれに用いる有機性汚泥の供給装置
JPWO2008093707A1 (ja) 下水汚泥の脱臭方法
JPH07233384A (ja) 熱改質炭、その製造方法及び製造装置
JP2009197204A (ja) 有機廃液を用いた固形化燃料の製造方法およびその製造システム
JP4017626B2 (ja) 含油廃水の処理方法
JP2005201486A (ja) 減圧乾燥装置
CN220887411U (zh) 一种原料油脱水设备
JP4734406B2 (ja) 液化物を用いた氷含有物質の氷除去方法
JP6708363B2 (ja) 含水材料の脱水方法
JP2006116394A (ja) 減圧気化装置
JPH0141678B2 (fr)
KR20040065390A (ko) 냉간 압연유 여과재로부터 압연유를 회수하는 방법
JPH02284685A (ja) 廃油処理装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200980121190.X

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09758380

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09758380

Country of ref document: EP

Kind code of ref document: A1