WO2009108032A1 - Installation et procédé de traitement simultané d'eaux résiduelles et des boues générées - Google Patents
Installation et procédé de traitement simultané d'eaux résiduelles et des boues générées Download PDFInfo
- Publication number
- WO2009108032A1 WO2009108032A1 PCT/MX2008/000029 MX2008000029W WO2009108032A1 WO 2009108032 A1 WO2009108032 A1 WO 2009108032A1 MX 2008000029 W MX2008000029 W MX 2008000029W WO 2009108032 A1 WO2009108032 A1 WO 2009108032A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- sludge
- plant
- tank
- compartment
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/20—Activated sludge processes using diffusers
-
- 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
-
- 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
- Y02W10/10—Biological treatment of water, waste water, or sewage
Definitions
- the present invention relates to the technical field of wastewater treatment, since it provides a plant and a method for the simultaneous treatment of wastewater and the sludge they generate.
- the activated sludge process is not applicable when there is no staff available that can attend to it in a constant and competent way, due to the mechanical equipment that must be done function and conserve, as well as the chemical, physical and biological nature of the process. Nitrification and denitrification is not carried out, causing the consequences of negative environmental impact.
- the volume of sludge produced is greater than that obtained in any other process, except perhaps in chemical treatment, and the sludge is difficult to treat.
- Municipal or black wastewater treatment plants based on activated sludge, currently known, comprise basic minimum components, such as screening, sanding, fat and oil extraction, sedimentation, and non-stabilized sludge extractors.
- patent application JP 2001087761 describes a method for treating wastewater with organic waste, by means of aeration, recirculation and separation of sludge; 1
- this method does not contemplate a stage to eliminate fats and oils, it does not treat, at the same time, the sludge generated from the waters being treated. Therefore, to counteract the aforementioned drawbacks, a plant and a method were developed to treat, at the same time, the wastewater and its generated sludge, which are described below.
- Figure 1 is a top view of the plant already integrated, to simultaneously treat wastewater and generated sludge, of the present invention.
- Figure 2 is a top view of a sieve and a sand trap of the plant of this invention.
- Figure 3 is cross section AA 'of the sieve and the dewatering machine, of the plant of this invention, illustrated in Figure 2.
- Figure 4 is a top view of a homogenizing tank of the plant in question, where its distribution box.
- Figure 5 is a longitudinal section B-B 'of the homogenizing tank, of the plant of the present invention.
- Figure 6 is a cross-section C-C of the homogenizing tank, of the plant of the present invention.
- Figure 7 is a top view of the biological reactor of the plant of this invention.
- Figure 8 is a cross section DD 'of the biological reactor of the plant in question.
- Figure 9 is a longitudinal section EE 'of the biological reactor of the plant in question.
- Figure 10 is a top view of the sedimentation and pouring section of the plant for treating sewage and sludge, of this invention.
- Figure 11 is a longitudinal section FF 'of the sedimentation and pouring section of the plant for treating sewage and sludge, of this invention.
- Figure 12 is a cross-section GG 'of the sedimentation section and the deflector, of the plant for treating sewage and sludge, of this invention.
- Figure 13 is a top plan view of the disinfection area that constitutes the plant in question.
- Figure 14 is a longitudinal section I-I 'of the disinfection area.
- Figure 15 is a cross section H-H 'of the disinfection area.
- Figure 16 is a top plan view of the sludge digester, which makes up this plant.
- Figure 17 is a section JJ 'of the digester of Figure 16.
- Figure 18 is a section KK' of the digester illustrated in Figure 16.
- Figure 19 is a conventional perspective view of the landfill, where its container and part of its screen.
- Figure 20 is a longitudinal section L-L 'of the complete plant for treating wastewater and sludge generated from said invention.
- Figure 21 is a top plan view of the plant in question, where several of its components can be seen.
- Figure 22 is a front view of a section of the aeration system, where the arrangement of a diffuser is appreciated.
- the plant to simultaneously treat wastewater and its generated sludge consists of at least: A conventional sieve 1, to eliminate the floating matter, consisting of garbage, wood, plastics, or other similar materials, which are dragged by the water to be treated and that could interfere with the treatment procedure.
- An aeration system consisting of: at least one blower 5, to capture atmospheric air and distribute it, in the areas of the plant where, at least, a distribution tube 8 is needed, which is generally in position horizontal; which has, at least, a downpipe 8 'to lower the air, which in turn, at its lower end carries perpendicularly an air diffuser 6, which is being a closed cylindrical hollow tube but with two rows of perforations 20 , located diametrically opposed to each other, that cover the entire length of said tube. The distance and the number of perforations is variable in each diffuser 6, which depends on the amount of air required.
- Said aeration system comprises, at least, an air control valve 37 located at the junction of the distribution tube 8 and the downpipe 8 'to control the air flow.
- a sand trap 2 to eliminate sedimentable solids, to protect the equipment that constitutes the plant, in question.
- Said sand trap is a container divided into two compartments, by means of a dividing wall 41.
- the first compartment 44 concentrates the sands and the second 45 serves to extract them from the plant.
- the sands concentrator compartment 44 has a bottom with a slope 46 that declines towards the dividing wall 41, to concentrate the sands at that point; and in the upper part a crockery 47 is fixed that is fixed in the dividing wall 41 to support, apart from the screens 1, a vertical screen 18 that retains the floating matter that manages to pass through the screens 1.
- the dividing wall has a lower perforation (not illustrated) where a conduit 15 is connected which conducts the water to a homogenizing tank 3 and an upper perforation 43 to return, to the first compartment 44, the water that rises beyond the tube 15.
- the crockery 47 must allow Ia inlet of one or more downpipes 8 'with their respective diffusers 6, for the introduction of compressed air coming from the aeration system, to wash the sands; as well as the introduction, at the point where the sands are concentrated, of a pneumatic extraction tube 42 and a first pneumatic pump 21, which transfer the sands to the second compartment 45, where the pneumatic extraction tube 42 is actuated by the aeration system.
- the sands fall to the bottom of the second compartment 45, to be extracted from the plant with the help of an electric pump 17 and a sand lift tube 48.
- the homogenizer tank 3 has a perforation at the same height as the lower perforation of the dividing wall 41, where the duct 15 is connected to receive the water that comes from the sand trap 2, it being recommended that the duct be located at a minimum height of 1.5 m, from the base of the homogenizer tank 3, to obtain a minimum level of water that allows the operation of the plant (NOP, level of operation) and also prevents the backflow of the water towards the sand trap 2.
- NOP level of operation
- Said tank 3 it is fed with compressed air that comes from the aeration system already described; Therefore, in this tank there is at least one air diffuser 6 at the bottom to mix the newly arrived water with the sludge and the fats and oils, which may already exist in the tank 3.
- a submersible pump 7 to raise the water by means of the lifting pipes 9, to a distribution box 4, located in the upper part of the tank, either inside or outside; where said box 4 has inside it a tube passed, and longitudinally grooved 10 located transversely towards the end of the discharge of the flow of said box 4, the tube being subject to the side walls of the box 4, but without being fixed, due to which it is necessary for the tube 10 to have a rotating movement on its own axis to calibrate it according to the level of the water contained in the box 4.
- the homogenizing tank can be rectangular or square prismatic, although this shape may vary depending on the terrain where said plant is built; and it may be closed or open in its upper part, which depends on the climatic conditions of the region. Because the fats and oils are located in the upper part, these are collected by entering the slot 11 of said tube 10 and are returned to the homogenizing tank 3 through the ends of the last tube 10, so that the length of said tube 10 is slightly larger than the width of the box 4, so that only the layer of grease and oils is returned to the homogenizing tank 3 by gravity and the lower layers flow into a biological reactor 13, through a rectangular pourer 14 of discharge located at least 60 cm from the base of the discharge end of the distribution box 4.
- the biological reactor 13 comprises at least one compartment that basically consists of a rectangular container, preferably; where at least, in one of its longitudinal lower edges there is a longitudinal chamfer 16.
- the compressed air required in this reactor 13 is supplied by the aeration system already mentioned, it being important to indicate what, in this case, the distribution pipes 8 and the introduction tubes 8 'are placed on the side where the chamfer 16 is located, such that the air bubbles leaving the holes 20 on the side of the diffuser 6 towards the chamfer 16 collide with it, causing them to fragment and causing micro bubbles, so that oxygen is easily dissolved with water; while, the air bubbles that come out on the other side of the diffuser 6 do not fragment, so they are larger and cause a circular movement of the water body in a transverse direction, with respect to the width of the reactor compartment 13 , preventing the micro bubbles from dissipating rapidly outside the water, thereby achieving longer retention time, for a better dissolution of oxygen.
- the reactor 13 has an opening 29 at a height of at least 80 cm, which is where the water is discharged into a sedimentation section 23.
- the sedimentation section 23 is a container with an inverted pyramidal bottom, which comprises a deflector 24 placed perpendicularly, in front of the outlet 29 of the reactor 13, so that the flow of water coming from said reactor collides with the deflector 24, causing a decrease in the flow velocity and a separation of the phases thereof, that is, the heavy solids move towards the bottom of the deflector, rushing to the bottom of the settler and the light matter rises through said deflector so that an undesirable floating matter separation occurs.
- a second pneumatic pump 25 is placed to extract the precipitated sludge by means of a lifting pipe 26 and transport them to: the first compartment (if there is more than one) of the biological reactor 13, homogenizer 3 and the sieve 1, in a proportion of 85, 10 and 5%, respectively, with the aid of a sludge return duct 19 provided with valves 12 for the control of the quantity and direction of said sludge.
- the pneumatic pump is injected with compressed air that comes from the aeration system already referenced, in such a way that a vacuum is caused by the Venturi effect and the mud rises through the lifting pipe 26.
- a spout is placed, which can be attached to the walls of the construction of this section or even by some other means of attachment.
- the pourer consists of a rectangular container 27 open at its top, whose upper side edges are cut into vertical cuts in "V" shapes 30 to a depth of one third, with respect to the height of said container, but leaving a separation between each cut
- a perimeter screen 28 surrounds the container 27, at a 40% separation of the width of the pourer, so that the floating matter that managed to pass the first deflector 24, is stopped, and as the heavy matter continues to precipitate, then through the lower part of The perimeter screen 28 passes the more clarified water into the interior of the pourer 27 through the cuts in "V" shapes 30.
- the pourer must be submerged until the vertex of the "V" cut is at the water level (NOP) , so that all the water that rises from the vertex, enters said container.
- NOP water level
- a disinfection area 32 conventional, where the water is disinfected with a disinfectant product, to eliminate those pathogenic micro-organisms that survived the treatment process.
- compressed air from the aeration system described is introduced, to mix the disinfectant with the clarified water and eliminate the residual surplus in those disinfectants that produce waste, for this it requires some baffles or screen 39 placed in the form of zigzag ( Figure 13 and 14).
- the treated water exits through an outlet duct 40 to be stored in a cistern (not shown), or sent to a direct disposal of the water obtained.
- the plant includes a digester tank 34 of the inert mineralized sludge, which is located near the sedimentation section 23 and is similar in construction to a biological reactor 13, but of smaller dimensions; Therefore, it has been a small biological reactor that will reduce, by up to 99%, the fraction of "young" biological sludge that was not reduced in the main biological reactor 13.
- Said digester 34 has, internally and inferiorly, at least one pneumatic pump 33 to extract the inert sludge and conduct them by means of a sludge lift tube 35 to a drying area 36, where the sludge dries and is ready to be used as an improver. of crop soils, among other uses.
- the drying area 36 the sludge is dried, with a drying system, such as centrifuge ?, or optionally dried outdoors, for which a drying bed is added.
- the wastewater treatment plant in question works as follows: the wastewater from the drainage reaches the screener 1, where all floating matter is removed, and then passed to the sand trap 2, where the sands are concentrated by gravity at the bottom of the first compartment 44 of the sand trap, which are washed by the compressed air thrown by the diffuser 6, and then transferred to the second compartment 45, with the help of the first pneumatic pump 21 and the pneumatic sand extraction tube 42 and finally they are extracted from the plant.
- the raw water passes to the homogenizer tank, through the duct 15, to be aerated with the compressed air provided by the diffuser 6, in order to mix all the flows that in the homogenizer concentrate, starting here the process of oxidation of the matter and obtain a liquor of all this mixture.
- the liquor is lifted by the submersible electric pump 7 and the lifting pipe 9, to the distribution box 4, so that the separation of fats and oils is carried out, with the help of the collecting tube 10, thanks to its longitudinal groove 11 , so that said tube must be submerged, approximately 0.5 cm; in such a way that a 0.5 cm thick layer is captured by the slot 11 of the collecting tube 10 and returned to the homogenizing tank by the outlets of said tube 10, so that the length of the tube 10 must be slightly greater than the width of the box 4 and this must be perforated where the collecting tube is placed, so that it allows the exit and fall, of the fats and oils to the homogenizing tank 3 to continue with the removal of said fats and oils, activity that is repeated until that the fats be completely removed, forming simpler substances.
- the layers of water below the grooved longitudinal tube 10 are those that pass to the biological reactor 13 through its rectangular discharge dump 14, so that the reduction of the contaminating organic matter is continued, through oxidation, caused by the oxygen contained in the air tablet that is received, the water must remain in the reactor 13 for a period of 20 to 30 hours, depending on the degree of water contamination, the water temperature and the altitude above sea level of the plant; It is important that the atmospheric air flow is applied at a pressure of 0.42 to 0.56 kg per cm 2 , with a speed of 3.5 meters per second.
- the water passes to the sedimentation section 23 through the opening of the biological reactor, because the flow has a certain speed, this impacts on the vertical deflector 24, which causes, apart from the decrease in speed, a separation of the phases thereof, that is to say that the heavy solids precipitate towards the bottom of the settler and the light matter rises through said deflector 24.
- the Ia Natural formation of floccules that is, without the addition of any flocculating chemical, as conventional processes use, they precipitate rapidly, it is here that the separation of clean water and sludge is carried out.
- the clean or clarified water continues on its way to the dump, where the cleanest water is the one that is collected in the container 27, by means of the "V" shaped cuts 30, this being the one that passes under the screen perimeter 28; thus ensuring that the collected water has the lowest degree of floating impurities, since this clarified water is transported to the disinfection area 32 to be treated with a chlorinated disinfectant, to eliminate living micro organisms.
- This water is then treated with atmospheric air from the aeration system already described to Mix the disinfectant with the water and at the same time remove the excess of residual chlorine and finally the water is stored in a cistern or direct disposal.
- the sludges that fall to the bottom of the sedimentation section 23 are extracted by means of the pneumatic pump 25 and the pneumatic extraction tube 26, and are distributed by the conduit 19 towards the first compartment (if there is more than one) of the reactor Biological 13, homogenizer 3, and the screening 1, in a proportion of 85, 10 and 5% respectively, this cycle can last at least 180 days.
- the sedimentation tank 23 reaches 30% of its volume of accumulated sludge, it is time to extract 70% of the accumulated sludge, to channel it to the digester 34 to complete its reduction and avoid the decrease in the dissolution of oxygen in the reactor Biological 13 by excess inert solids. It is important to leave 30% of the accumulated sludge as a remaining strain of micro organisms that serves as inoculum so that the population of micro organisms proliferates faster and the process does not destabilize.
- NE not specified
- SST total suspended solids
- BOD Biochemical Demand of O 2
- NTU Turbidity unit.
- the sludge generated in our process is non-hazardous waste that is managed for its use or final disposal.
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Activated Sludge Processes (AREA)
Abstract
L'invention concerne une installation et un procédé de traitement simultané d'eaux résiduelles et des boues générées. Ladite installation comprend au moins un dispositif de criblage (1) pour éliminer la matière flottante entraînée par l'eau résiduelle; un système d'aération formé d'au moins une soufflante (5) et d'un réseau de canalisations (8 et 8') pour la distribution et l'introduction de l'air dans l'installation; un dispositif de dessablage (2); un réservoir d'homogénéisation (3); un réacteur biologique (13) une section de séparation de l'eau et des boues (23); une zone de désinfection (32); et un réservoir pour le stockage de l'eau obtenue ou son utilisation directe. Le procédé de traitement simultané d'eaux résiduelles et des boues générées est basé sur l'application d'air atmosphérique comprimé pour oxyder la matière organique et faire recirculer les boues générées dans l'installation jusqu'à leur minéralisation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/MX2008/000029 WO2009108032A1 (fr) | 2008-02-25 | 2008-02-25 | Installation et procédé de traitement simultané d'eaux résiduelles et des boues générées |
| MX2010009549A MX2010009549A (es) | 2008-02-25 | 2010-08-12 | Planta y metodo para tratar simultaneamente, aguas residuales y lodos generados. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/MX2008/000029 WO2009108032A1 (fr) | 2008-02-25 | 2008-02-25 | Installation et procédé de traitement simultané d'eaux résiduelles et des boues générées |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009108032A1 true WO2009108032A1 (fr) | 2009-09-03 |
Family
ID=41016297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/MX2008/000029 Ceased WO2009108032A1 (fr) | 2008-02-25 | 2008-02-25 | Installation et procédé de traitement simultané d'eaux résiduelles et des boues générées |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2009108032A1 (fr) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603110A (zh) * | 2011-01-20 | 2012-07-25 | 苏州科技学院 | 一种利用底泥曝气修复城市重污染水体的方法 |
| CN103332771A (zh) * | 2013-06-30 | 2013-10-02 | 温州中环正源水务有限公司 | 曝气沉砂池浮渣处理装置 |
| WO2014005540A1 (fr) * | 2012-07-06 | 2014-01-09 | Jinmin Li | Appareil et procédé pour le traitement biologique des eaux usées |
| CN107758830A (zh) * | 2017-11-22 | 2018-03-06 | 江苏省环境科学研究院 | 可拆卸的湿式氧化处理废水的反应器 |
| CN107902715A (zh) * | 2017-11-15 | 2018-04-13 | 安徽金联地矿科技有限公司 | 一种采用微纳米气泡处理污水的装置及方法 |
| CN108726820A (zh) * | 2017-04-21 | 2018-11-02 | 中国二十冶集团有限公司 | 河道淤泥无害化原位处理方法 |
| CN109231553A (zh) * | 2018-10-09 | 2019-01-18 | 徐州工程学院 | 一种小流域水体重金属污染应急处理装置 |
| CN109354369A (zh) * | 2018-10-22 | 2019-02-19 | 长沙理工大学 | 一种泥浆处理系统的控制方法 |
| CN110425169A (zh) * | 2019-08-16 | 2019-11-08 | 宁波希澈机械科技有限公司 | 一种智能管道风机 |
| CN113087351A (zh) * | 2021-03-18 | 2021-07-09 | 杭州国泰环保科技股份有限公司 | 一种污泥低压脱水装置和处理工艺 |
| CN113428956A (zh) * | 2021-06-30 | 2021-09-24 | 刘佰慧 | 一种可冲洗介质加速高密度沉淀池水处理系统及方法 |
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| GB478977A (en) * | 1936-02-03 | 1938-01-28 | American Centrifugal Corp | Improvements in or relating to treatment of sewage |
| US4159944A (en) * | 1978-02-13 | 1979-07-03 | Erickson Lennart G | Wastewater energy recycling method |
| EP0311887A2 (fr) * | 1987-10-13 | 1989-04-19 | Politechnika Wroclawska | Installation pour le traitement mécanique et biologique d'eau usée |
| US5647986A (en) * | 1994-12-02 | 1997-07-15 | Nawathe; Dilip | Apparatus and process for distributed treatment of wastewater |
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2008
- 2008-02-25 WO PCT/MX2008/000029 patent/WO2009108032A1/fr not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB478977A (en) * | 1936-02-03 | 1938-01-28 | American Centrifugal Corp | Improvements in or relating to treatment of sewage |
| US4159944A (en) * | 1978-02-13 | 1979-07-03 | Erickson Lennart G | Wastewater energy recycling method |
| EP0311887A2 (fr) * | 1987-10-13 | 1989-04-19 | Politechnika Wroclawska | Installation pour le traitement mécanique et biologique d'eau usée |
| US5647986A (en) * | 1994-12-02 | 1997-07-15 | Nawathe; Dilip | Apparatus and process for distributed treatment of wastewater |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603110A (zh) * | 2011-01-20 | 2012-07-25 | 苏州科技学院 | 一种利用底泥曝气修复城市重污染水体的方法 |
| WO2014005540A1 (fr) * | 2012-07-06 | 2014-01-09 | Jinmin Li | Appareil et procédé pour le traitement biologique des eaux usées |
| US9771286B2 (en) | 2012-07-06 | 2017-09-26 | Jinmin Li | Apparatus for biological sewage treatment |
| EA028145B1 (ru) * | 2012-07-06 | 2017-10-31 | Цзиньминь Ли | Устройство и способ биологической очистки сточных вод |
| CN103332771A (zh) * | 2013-06-30 | 2013-10-02 | 温州中环正源水务有限公司 | 曝气沉砂池浮渣处理装置 |
| CN103332771B (zh) * | 2013-06-30 | 2014-06-18 | 温州中环正源水务有限公司 | 曝气沉砂池浮渣处理装置 |
| CN108726820A (zh) * | 2017-04-21 | 2018-11-02 | 中国二十冶集团有限公司 | 河道淤泥无害化原位处理方法 |
| CN108726820B (zh) * | 2017-04-21 | 2021-03-26 | 中国二十冶集团有限公司 | 河道淤泥无害化原位处理方法 |
| CN107902715A (zh) * | 2017-11-15 | 2018-04-13 | 安徽金联地矿科技有限公司 | 一种采用微纳米气泡处理污水的装置及方法 |
| CN107758830A (zh) * | 2017-11-22 | 2018-03-06 | 江苏省环境科学研究院 | 可拆卸的湿式氧化处理废水的反应器 |
| CN107758830B (zh) * | 2017-11-22 | 2023-09-05 | 江苏省环境科学研究院 | 可拆卸的湿式氧化处理废水的反应器 |
| CN109231553A (zh) * | 2018-10-09 | 2019-01-18 | 徐州工程学院 | 一种小流域水体重金属污染应急处理装置 |
| CN109354369A (zh) * | 2018-10-22 | 2019-02-19 | 长沙理工大学 | 一种泥浆处理系统的控制方法 |
| CN109354369B (zh) * | 2018-10-22 | 2023-12-05 | 长沙理工大学 | 一种泥浆处理系统的控制方法 |
| CN110425169A (zh) * | 2019-08-16 | 2019-11-08 | 宁波希澈机械科技有限公司 | 一种智能管道风机 |
| CN110425169B (zh) * | 2019-08-16 | 2020-04-10 | 浙江省东阳市华东暖通设备有限公司 | 一种智能管道风机 |
| CN113087351A (zh) * | 2021-03-18 | 2021-07-09 | 杭州国泰环保科技股份有限公司 | 一种污泥低压脱水装置和处理工艺 |
| CN113087351B (zh) * | 2021-03-18 | 2022-11-11 | 杭州国泰环保科技股份有限公司 | 一种污泥低压脱水装置和处理工艺 |
| CN113428956A (zh) * | 2021-06-30 | 2021-09-24 | 刘佰慧 | 一种可冲洗介质加速高密度沉淀池水处理系统及方法 |
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