DK141364B - PLANT FOR CLEANING AND DISINFECTING WASTE WATER AND TREATING THE SLAM THEREOF - Google Patents
PLANT FOR CLEANING AND DISINFECTING WASTE WATER AND TREATING THE SLAM THEREOF Download PDFInfo
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- DK141364B DK141364B DK391471AA DK391471A DK141364B DK 141364 B DK141364 B DK 141364B DK 391471A A DK391471A A DK 391471AA DK 391471 A DK391471 A DK 391471A DK 141364 B DK141364 B DK 141364B
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- container
- plant
- wastewater
- waste water
- sludge
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/03—Processes of filtration using flocculating agents
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- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
- C02F1/763—Devices for the addition of such compounds in gaseous form
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/003—Wastewater from hospitals, laboratories and the like, heavily contaminated by pathogenic microorganisms
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/008—Originating from marine vessels, ships and boats, e.g. bilge water or ballast water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (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)
- Filtration Of Liquid (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Description
ί^\ y (11) FREMLÆBBELSESSKRIFT 141364 DANMARK (en int.ci.s c 02 f 9/00 (21) Ansøgning nr. 391V71 (22) Indleveret den 11· aug· 1971 MHB (23) Lebedee 1 1 · aug· 1971ί ^ \ y (11) PUBLICATIONS 141364 DENMARK (an int.ci.s c 02 f 9/00 (21) Application No. 391V71 (22) Filed on 11 · Aug · 1971 MHB (23) Lebedee 1 1 · Aug · 1971
ν' (44) Ansøgningen fremlagt og Qν '(44) The application presented and Q
fremlseggeteeeekrlftet offentliggjort den 3 · ®8Γ · 19°^ DIREKTORATET FOR t ^ PATENT-OG VAREMÆRKEVÆSENET (30) Prioritet bageret fra den . __ 12. aug. 1970, 2040061, XE (71) HILGERS AKTIENGESELLSCHAFT, 5456 Rheinbrohl, DE.the promotional paper published on 3 · ®8Γ · 19 ° ^ DIRECTORATE OF THE PATENT AND TRADEMARKET (30) Priority baked from it. __ Aug 12 1970, 2040061, XE (71) HILGERS AKTIENGESELLSCHAFT, 5456 Rheinbrohl, DE.
72) Opfinder: Kar 1-Heinz Hildebrand, 5421 Fachbach/Bad Ems, Fachbachtal 40, DE.72) Inventor: Kar 1-Heinz Hildebrand, 5421 Fachbach / Bad Ems, Fachbachtal 40, DE.
(74) Fuldmægtig under sagene behandling:(74) Plenipotentiary in the proceedings:
Dansk Patent Kontor ApS._ (64) Anlæg til rensning og desinficering af spildevand og til behandling, af det derved fremkomne slam.Dansk Patent Kontor ApS._ (64) Installations for the purification and disinfection of sewage and for the treatment of the resulting sludge.
Opfindelsen angår et anlæg til rensning og desinficering af spildevand og til behandling af det derved fremkomne slam. Anlægget er af den i krav l's indledning angivne art.The invention relates to a plant for the purification and disinfection of sewage and for the treatment of the resulting sludge. The plant is of the type specified in the preamble of claim 1.
Ved sådanne anlæg, der også kan finde anvendelse i sygehuse og skibe, er det nødvendigt, at en stor procentdel af de i spildevandet værende kim dræbes. Til opnåelse af dette kendes der desinfektionsanlæg, der desinficerer spildevandet termisk. Disse har foruden det store energiforbrug og betjeningsindsats den ulempe, at opvarmningen af spildevandet kræver et tilsvarende langt ophold i kedlerne, hvorved der kun kan desinficeres ringe mængder spildevand, eller der udkræves meget store anlæg.In such plants, which can also be used in hospitals and ships, it is necessary that a large percentage of the germs in the waste water be killed. To achieve this, there are known disinfection plants which thermally disinfect the wastewater. In addition to the large energy consumption and operating effort, these have the disadvantage that the heating of the wastewater requires a correspondingly long stay in the boilers, whereby only small quantities of wastewater can be disinfected or very large plants are required.
141364 2141364 2
Endvidere kendes der desinfektionsanlæg, som desinficerer spildevandet kemisk. Disse har den ulempe, at kimdrab på grund af den høje koncentration af urenheder og svævestoffer i spildevandet fra sygehuse og skibe kun opnås ved forholdsvis store doser af et desinfektionsmiddel .Furthermore, there are known disinfectants which chemically disinfect the wastewater. These have the disadvantage that germicides due to the high concentration of impurities and pollutants in the wastewater from hospitals and ships are achieved only at relatively large doses of a disinfectant.
Endvidere kendes fra tysk offentliggørelsesskrift nr. 1.517.683 et anlæg til rensning af spildevand og med en hlandebeholder til homogenisering af spildevandet og en til denne hlandebeholder forbundet klaringsbeholder, i hvilken der fra spildevandet, der er tilsat et sedimentationsmiddel, bundfælder bestanddele, som fjernes fra klaringsbeholderen ved hjælp af et slamaftræk. Ved dette kendte anlæg behandles spildevandet diskontinuerligt, dvs. portionsvis, og man behøver derfor flere klaringsbeholdere og krævende fordelings-og styreindretninger. Desuden forlader spildevandet dette kendte anlæg med en ringe rensningsgrad og udesinficeret.Furthermore, from German publication specification No. 1,517,683, a waste water purification plant and a waste container for homogenization of the waste water and a clearing tank associated with this waste water, in which precipitates are removed from the waste water with a sedimentation agent, are removed. the clearing vessel using a sludge extractor. At this known plant, the wastewater is treated discontinuously, ie. portion-wise, and therefore more clearance containers and demanding distribution and control devices are needed. In addition, the wastewater leaves this known plant with a low degree of purification and is disinfected.
Opfindelsen har til formål at tilvejebringe et anlæg, der behandler spildevandet kontinuert, klarer sig med små doser desinfektionsmiddel og afgiver klart vand.The invention has for its object to provide a system which processes the wastewater continuously, copes with small doses of disinfectant and delivers clear water.
Dette formål opfyldes af anlægget ifølge opfindelsen, der er ejendommeligt ved det i krav 11 s kendetegnende del angivne.This object is fulfilled by the system according to the invention, which is characterized by the characterizing part of claim 11 s.
Slamdesinficeringsindretningen kan med fordel forbindes med en slamfor-tætter, og den første hlandebeholder kan foroven udmunde i en stuv-ningsbeholder og indløbet til den efterfølgende anden hlandebeholder være forbindet med stuvningsbeholderen; den første blandingsbeholder kan have en kugleformet bund med aftræksindretning. Yderligere er den første blandingsbeholder forsynet med en omløbsledning, der fører tilbage til beholderen, og i hvilken der efter hinanden ligger en pumpe og en sønderdeler; pumpen kan være af en sådan art, at den sønderdeler under pumpningen. Fortrinsvis foreslås det, at den anden blande-beholder har et ringcylindrisk rum med øvre tangentialt tilløb og forneden er forbundet med et centralt rum med øvre afløb og her har en tilgang for kemikalier, samt at tilløb og afløb for blandebeholde-ren hver er forbundet med et doseringsapparat for et kemisk middel. Hensigtsmæssigt er filteret indbygget således i klaringsbeholderens hus eller beholder, at ved rensning af filteret kommer det af filteret tilbageholdte slam ved tilbageskylning af filteret med vand ind i beholderens slamaftræk.Advantageously, the sludge disinfecting device may be connected to a sludge sealer, and the first container container may open at the top of a storage container and the inlet of the subsequent second container container may be connected to the storage container; the first mixing container may have a spherical bottom with a peeler. Further, the first mixing vessel is provided with a by-pass line leading back to the container and in which there is successively a pump and a splitter; the pump may be of such a nature that it disintegrates during pumping. Preferably, it is proposed that the second mixing vessel has an annular cylindrical compartment with upper tangential inlet and below is connected to a central compartment with upper drain and here has an approach for chemicals, and that the inlet and outlet for the mixing container are each connected to a dosing apparatus for a chemical agent. Conveniently, the filter is built into the housing or container of the clearing container so that, when cleaning the filter, the sludge retained by the filter comes back by rinsing the filter with water into the sludge outlet of the container.
141364 3141364 3
Tegningen viser skematisk et anlæg ifølge opfindelsen, der vil blive nærmere beskrevet i det følgende.The drawing schematically shows a plant according to the invention, which will be described in more detail below.
Anlægget har en første blandebeholder 1 med tilløb 2 for spildevandet, en ledning 3, hvis ene ende gennem en pumpe 4 og anden ende gennem en sønderdeler 5 er forbundet med beholderen, og et nedre ved en ventil 7 aflukkeligt udløb 6. Beholderen 1 munder foroven ud i en større stuvningsbeholder 8, der i sin nedre del er forsynet med et udløb 9 og oven for dette med en på vandtryk reagerende elektrisk omskifter 10 og i sin øvre del har tilgangsåbninger 11 og 12 samt en afluftningsledning 13· Beholderen 1 er fortrinsvis kugleformet.The plant has a first mixing tank 1 with inlet 2 for the wastewater, a conduit 3, one end of which through a pump 4 and the other end through a shredder 5 is connected to the container, and a lower outlet 6 closed by a valve 7. into a larger stowage container 8, which at its lower part is provided with an outlet 9 and above it with a water-responsive electrical switch 10 and in its upper part has inlet openings 11 and 12 and a vent line 13 · The container 1 is preferably spherical .
Anlægget har endvidere en lodret, i det væsentlige cylindrisk anden blandebeholder 15 med et centralt, lodret og omtrent ned til bunden af beholderen rækkende rør 16. Den øvre del af blandebeholderen 15 er gennem en ledning 14 forbundet med udløbet 9 for beholderen 1.The system further has a vertical, substantially cylindrical second mixing container 15 with a central, vertical and approximately down to the bottom of the container extending tube 16. The upper portion of the mixing container 15 is connected through a conduit 14 to the outlet 9 of the container 1.
I ledningen 14 er der en pumpe 17. I ledningen 14 udmunder afgangen fra et doseringsapparat 18a, der tilsætter spildevandet et alkalisk middel. Kemikalieindløbet 15a fra et andet doseringsapparat 18b udmunder i den nedre del af blandebeholderen 15. Herigennem tilsættes der spildevandet et middel, som sænker det alkaliske vands pH-værdi. Røret 16 er forbundet med en ledning 19, der har to ventiler 20 og 21. Efter sidstnævnte ventil 21 fører ledningen ind i tilgangsåbningen 11 på opstuvningsbeholderen 8. I ledningen 19 udmunder der mellem blandebeholderen 15 og ventilen 21 afgangen fra et tredie doseringsapparat 18c, som tilsætter spildevandet et bundfældnings-middel. Mellem de to ventiler 20 og 21 er der en afgreningsledning 22, som udmunder tangentielt i et cylinderringrum 23a i en klaringsbeholder 23; rummet ligger mellem den øvre cylindriske del 23b af beholdervæggen og en cylindrisk væg 23c, som når ned til et sted, hvor beholderen indsnævres. Ved den nedre ende af den indsnævrende del af beholderen 23 er indrettet et slamaftræk 24. I den øvre cylindriske del 23b af klaringsbeholderen er der inden for den cylindriske væg 23c og med afstand fra denne indsat en cylindrisk filterindsats 25, som gennem flere indløb 26 står i forbindelse med et mellemrum 23e mellem indsatsen 25 og den cylindriske væg 23c. Et centralt rør 27 rækker omtrent ned til bunden af filterindsatsen og er her således udvidet, at filtermassen, der fylder det frie indvendige U1366 rum af filterindsatsen 25 over det meste af dennes højde, ikke kan trænge ind i røret 27. Som filterindsats kommer et til mekanisk rensning af vand egnet materiale i betragtning, f.eks. grus, koks, aktivt kul eller halvbrændt dolomit. Såvel rummet 23a som det mellem væggen 23c og filterindsatsen 25 værende rum er ved ledninger 33 og 34 forbundet med en lufttilførings- og afluftningsledning 35, som også er forbundet med afluftningsledningen 13.In conduit 14 there is a pump 17. In conduit 14, the outlet of a dosing apparatus 18a, which adds to the waste water, provides an alkaline agent. The chemical inlet 15a from another dosing apparatus 18b opens into the lower part of the mixing vessel 15. Hereby, the wastewater is added an agent which lowers the pH value of the alkaline water. The tube 16 is connected to a conduit 19 having two valves 20 and 21. Following the latter valve 21, the conduit enters the inlet opening 11 of the stowage container 8. In conduit 19, the outlet of the mixing container 15 and the valve 21 opens the outlet of a third dosing apparatus 18c, which the wastewater adds a precipitant. Between the two valves 20 and 21 there is a branch line 22 which opens tangentially in a cylinder annulus 23a in a clearing container 23; the space lies between the upper cylindrical portion 23b of the container wall and a cylindrical wall 23c which reaches down to a point where the container narrows. At the lower end of the constricting portion of the container 23 is a sludge extractor 24. In the upper cylindrical portion 23b of the clearing container there is inserted within the cylindrical wall 23c and at a distance therefrom a cylindrical filter insert 25, which through several inlets 26 in connection with a space 23e between the insert 25 and the cylindrical wall 23c. A central tube 27 extends approximately to the bottom of the filter insert and is here expanded so that the filter mass that fills the free interior space of the filter insert 25 over most of its height cannot penetrate the tube 27. As a filter insert, mechanical purification of water suitable material into consideration, e.g. gravel, coke, activated charcoal or semi-burnt dolomite. Both the space 23a and the space between the wall 23c and the filter insert 25 are connected by lines 33 and 34 to an air supply and vent line 35 which is also connected to the vent line 13.
Røret 27 udmunder mellem to ventiler 28 og 29 i en udløbsledning 30, som på den anden side af ventilen 28 er forbundet med en friskvandsledning og på den anden side af ventilen 29 med en blande-beholder 31, hvis afløb foregår gennem et centralt rør 32 i blande-' beholderen. I ledningen 30 udmunder afgangen fra et chlordoseringsapparat 36, som er forbundet med en forrådsbeholder 37· Ret gennem røret 52 afgående vand kan benyttes som desinficeret vand. Slamaftrækket 24 ved klaringsbeholderen 23 er ved en slamaftræksledning 38 forbundet med en slamdesinficeringsindretning 39, som i sin nedre koniske ende har et slamaftræk 40, i sin midterste del en ved en motor 41 drejelig blandepropel 42 og har en central tilgang for luft samt et chlordoseringsapparat 43. En ledning 44 forbinder det indre af indretningen 39 med lufttilgangs- og afluftningsledningen 35·The pipe 27 opens between two valves 28 and 29 in an outlet conduit 30 which is connected to a fresh water line on the other side of the valve 28 and on the other side of the valve 29 to a mixing vessel 31, the discharge of which passes through a central pipe 32 in the mixing container. In line 30, the outlet of a chlorine dosing device 36 connected to a storage container 37 · Water flowing through the pipe 52 can be used as disinfected water. The sludge extractor 24 at the clearing tank 23 is connected to a sludge extractor line 38 by a sludge disinfection device 39, which has a slurry extractor 40 at its lower conical end, a central mixer 42 pivotable by a motor 41 and a central access for air as well as a chlorine dispenser 43 A conduit 44 connects the interior of the device 39 to the air inlet and vent conduit 35 ·
Slamaftrækket 40 er gennem en ledning 45, der er forsynet med en pumpe 46, forbundet med en slamfortætter 47, i hvilken slammet afvandes så vidt, at det som fugtig fast masse kan fyldes i sække 49 ved hjælp af en transportør 4$. En med en pumpe 50 forsynet ledning 51 fører det fraskilte vand til tilgangen 12 på stuvningsbeholderen S.The sludge extract 40 is connected through a conduit 45 provided with a pump 46 to a sludge compactor 47, in which the sludge is dewatered to such an extent that it can be filled as sack 49 in bags 49 by means of a conveyor 4 $. A line 51 provided with a pump 50 carries the separated water to the inlet 12 of the stowage container S.
Det beskrevne anlæg arbejder på følgende måde:The system described works as follows:
Spildevandet bliver ved hjælp af en spildevandspumpe 53 intermitterende eller impulsvis ført til beholderen 1 gennem dennes tilløb 2. Her bliver,det ved hjælp af pumpen 4 pumpet impulsvis gennem ledningen 3 fra den ene side af beholderen til dennes anden side. Pumpen 4 er af en sådan art, at de af spildevandet medførte grovere dele, f.eks. papir og bind, til en vis grad bliver sønderdelt, medens sønderdeleren 5 foretager en finsønderdeling af disse dele. Tunge dele, der ikke kan sønderdeles, f.eks. sten eller metalstykker, synker straks ned i den kugleformede bund af beholderen 1 og kan efter åbning af ventilen 7 tømmes ned i det som stensluse virkende og med en yderligere ventil 52 aflukkelige udløb 6 og så efter lukning af ventilen 7 og åbning af ventilen 52 føres helt bort.The waste water is intermittently or impulsively supplied to the container 1 by means of a sewage pump 53 through its inlet 2. Here, by means of the pump 4, it is impulsively pumped through the conduit 3 from one side of the container to the other. The pump 4 is such that the coarser parts of the wastewater, e.g. paper and binders are to some extent disintegrated, while the disintegrator 5 makes a fine disintegration of these parts. Heavy parts that cannot be broken, e.g. stones or pieces of metal, immediately sink into the spherical bottom of the container 1 and can be emptied into the acting as a stone lock after opening the valve 7 and closing with a further valve 52 and then after closing the valve 7 and opening the valve 52 completely gone.
141364 5 Så snart spildevandet med de sønderdelte faste stoffer, der fra beholderen 1 kommer op i stuvningsbeholderen S, har nået en vis højde i denne, aktiverer vandtrykket omskifteren 10, der åbner for udløbet 9, indtil det på omskifteren 10 virkende vandtryk er kommet ned under en vis grænse. Det i beholderen 1 homogeniserede spildevand bliver så ved hjælp af pumpen 17 pumpet over i blandebeholderen 15. På sin vej hertil får det ved hjælp af doseringsapparatet 18a tilsat et alkalisk middel (f.eks. kalkmælk) i en mængde, der svarer til mængden af det ved pumpen 17 transporterede vand, og som bevirker en fnugdannelse af de urenheder, der ved alkalipåvirkning kan overføres i fnugform.As soon as the wastewater with the decomposed solids coming up from the container 1 into the stowage container S has reached a certain height in it, the water pressure activates the switch 10 which opens the outlet 9 until the water pressure acting on the switch 10 has come down. below a certain limit. The waste water homogenized in the container 1 is then pumped into the mixing vessel 15 by means of the pump 17. On its way there is added an alkaline agent (eg lime milk) by means of the dosing apparatus 18a corresponding to the amount of the water transported at the pump 17 which causes a lint to form the impurities which can be transmitted in lime form by an alkali effect.
Efter at spildevandet ved den nedre ende af blandebeholderen ved hjælp af det andet doseringsapparat 18b har fået tilført et middel (f.eks. jernchlorid) til sænkning af det alkaliske vands pH-værdi, hvilket bevirker en fnugdannelse af de stoffer, der ikke danner fnug ved alkaliske midler, stiger det op i røret 16 og får i ledningen 19 tilsat et bundfældningsmiddel (f.eks. cellulosederivater) ved hjælp af det tredie doseringsapparat 18c.After the wastewater at the lower end of the mixing vessel has been supplied with the aid of the second dosing apparatus 18b an agent (eg iron chloride) for lowering the pH value of the alkaline water, which causes a lint to form the non-lye substances. by alkaline means, it rises into the tube 16 and a settling agent (e.g., cellulose derivatives) is added to the conduit 19 by means of the third dosing apparatus 18c.
Gennem ventilen 20 og ledningen 22 kommer spildevandet tangentialt ind i cylinderrummet 23a i klaringsbeholderen 23. I cylinderrummet 23a bevæger spildevandet sig roterende nedefter, nedsætter sin hastighed og udskiller i den nedre del 23d smådele af smuds. Det stiger derefter op mellem den cylindriske væg 23c og den cylindriske filterindsats 25, kommer gennem udløbene 26 ind i denne indsats og bliver gennem røret 27, ventilen 29 og ledningen 30 trykket over i blandeheholderen 31 og ud gennem dennes rør 32. Forinden blandebeholderen 31 bliver spildevandet cbloreret ved hjælp af chlordoseringsapparatet. Spildevandet forlader anlægget gennem røret 32 i desinficeret og klar tilstand.Through the valve 20 and the conduit 22, the wastewater tangentially enters the cylinder compartment 23a in the clearing vessel 23. In the cylinder compartment 23a, the wastewater moves rotationally downward, decreases its velocity and separates in the lower part 23d small portions of dirt. It then rises between the cylindrical wall 23c and the cylindrical filter insert 25, enters through the outlets 26 into this insert and is pushed through the pipe 27, the valve 29 and the pipe 30 into the mixing container 31 and out through its pipe 32. Before the mixing container 31 becomes the wastewater absorbed by the chlorine dosing apparatus. The wastewater leaves the plant through the pipe 32 in a disinfected and clear state.
Til rensning af filteret 25 trykkes der gennem ventilen 28 og røret 27 friskvand ind i filteret, hvorved det ved filtreringen tilbageholdte slam skylles ned i den nedre del 23d af klaringsbeholderen 23· Friskvandet trykkes derved gennem ledningen 22, ventilen 21 og ledningen 19 over i stuvningsbeholderen 8.To purify filter 25, fresh water is forced through the valve 28 and tube 27 into the filter, whereby the sludge retained in the filtration is flushed down into the lower part 23d of the clearing container 23 · The fresh water is then pushed through the conduit 22, the valve 21 and the conduit 19 into the stowage container. 8th
Det slam, der samler sig i den nedre del 23d, bliver gennem slamaftrækket 24 og ledningen 38 impulsvis trukket over i blandebeholde-The sludge that accumulates in the lower portion 23d is impulseously pulled through the sludge outlet 24 and line 38 into the mixing vessel.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2040061 | 1970-08-12 | ||
DE19702040061 DE2040061C3 (en) | 1970-08-12 | Plant for cleaning and disinfecting wastewater and for processing the sludge that arises |
Publications (2)
Publication Number | Publication Date |
---|---|
DK141364B true DK141364B (en) | 1980-03-03 |
DK141364C DK141364C (en) | 1980-09-01 |
Family
ID=5779541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK391471A DK141364C (en) | 1970-08-12 | 1971-08-11 | PLANT FOR CLEANING AND DISINFECTING WASTE WATER AND TREATING THE SLAM THEREOF |
Country Status (14)
Country | Link |
---|---|
AT (1) | AT310684B (en) |
BE (1) | BE770871A (en) |
CA (1) | CA964386A (en) |
CH (1) | CH521290A (en) |
DK (1) | DK141364C (en) |
ES (1) | ES393614A1 (en) |
FI (1) | FI54096C (en) |
FR (1) | FR2104219A5 (en) |
GB (1) | GB1339198A (en) |
IT (1) | IT941673B (en) |
NL (1) | NL7110953A (en) |
NO (1) | NO130428B (en) |
SE (1) | SE379035B (en) |
ZA (1) | ZA714842B (en) |
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US5374356A (en) * | 1992-07-28 | 1994-12-20 | Pall Corporation | Fluid treatment process using dynamic microfiltration and ultrafiltration |
CN107096297A (en) * | 2017-05-24 | 2017-08-29 | 天津大学 | One kind is registered one's residence water reclamation system in formula |
RU2723392C2 (en) * | 2018-05-04 | 2020-06-11 | Юрий Ефимович Ващенко | Hydrodynamic treatment plant for liquid effluents of cattle-breeding farms and industrial enterprises |
CN109493988B (en) * | 2018-12-14 | 2024-06-14 | 核工业理化工程研究院 | Nuclear biochemical decontamination waste liquid pretreatment device and treatment method |
CN112843876A (en) * | 2021-02-23 | 2021-05-28 | 张丽 | Integrated precipitation and filtration equipment for sewage treatment |
CN113429043A (en) * | 2021-06-23 | 2021-09-24 | 中石化宁波工程有限公司 | Water purification treatment system for high-speed rail manganese silicon water source |
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1971
- 1971-07-20 AT AT631071A patent/AT310684B/en active
- 1971-07-20 ZA ZA714842A patent/ZA714842B/en unknown
- 1971-07-24 ES ES393614A patent/ES393614A1/en not_active Expired
- 1971-07-26 GB GB3499371A patent/GB1339198A/en not_active Expired
- 1971-08-03 BE BE770871A patent/BE770871A/en unknown
- 1971-08-05 FI FI2198/71A patent/FI54096C/en active
- 1971-08-05 CH CH1153671A patent/CH521290A/en not_active IP Right Cessation
- 1971-08-09 NL NL7110953A patent/NL7110953A/xx not_active Application Discontinuation
- 1971-08-09 CA CA120,066A patent/CA964386A/en not_active Expired
- 1971-08-11 DK DK391471A patent/DK141364C/en active
- 1971-08-11 IT IT27410/71A patent/IT941673B/en active
- 1971-08-11 FR FR7129330A patent/FR2104219A5/fr not_active Expired
- 1971-08-11 NO NO02994/71A patent/NO130428B/no unknown
- 1971-08-11 SE SE7110236A patent/SE379035B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
BE770871A (en) | 1971-12-16 |
FR2104219A5 (en) | 1972-04-14 |
ZA714842B (en) | 1972-06-28 |
DE2040061A1 (en) | 1972-02-17 |
NL7110953A (en) | 1972-02-15 |
NO130428B (en) | 1974-09-02 |
IT941673B (en) | 1973-03-10 |
CA964386A (en) | 1975-03-11 |
FI54096C (en) | 1978-10-10 |
GB1339198A (en) | 1973-11-28 |
AT310684B (en) | 1973-10-10 |
SE379035B (en) | 1975-09-22 |
DE2040061B2 (en) | 1977-04-21 |
ES393614A1 (en) | 1974-07-01 |
CH521290A (en) | 1972-04-15 |
FI54096B (en) | 1978-06-30 |
DK141364C (en) | 1980-09-01 |
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