EP0077358A1 - Dispositif pour ventiler des eaux usees a purifier - Google Patents

Dispositif pour ventiler des eaux usees a purifier

Info

Publication number
EP0077358A1
EP0077358A1 EP82901294A EP82901294A EP0077358A1 EP 0077358 A1 EP0077358 A1 EP 0077358A1 EP 82901294 A EP82901294 A EP 82901294A EP 82901294 A EP82901294 A EP 82901294A EP 0077358 A1 EP0077358 A1 EP 0077358A1
Authority
EP
European Patent Office
Prior art keywords
neutralization
wastewater
container
aeration
air
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.)
Withdrawn
Application number
EP82901294A
Other languages
German (de)
English (en)
Inventor
Willy-F. Palmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0077358A1 publication Critical patent/EP0077358A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C02F1/62—Heavy metal compounds
    • C02F1/64—Heavy metal compounds of iron or manganese
    • C02F1/645—Devices for iron precipitation and treatment by air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B01F23/2323—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits
    • B01F23/23231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits being at least partially immersed in the liquid, e.g. in a closed circuit
    • B01F23/232311—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits being at least partially immersed in the liquid, e.g. in a closed circuit the conduits being vertical draft pipes with a lower intake end and an upper exit end
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • B01F35/32005—Type of drive
    • B01F35/3203—Gas driven
    • 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
    • C02F3/06—Aerobic processes using submerged filters
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • B01F35/32005—Type of drive
    • B01F35/32015—Flow driven
    • 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 an arrangement for aerating waste water to be purified according to the preamble of patent claim 1.
  • the object of the present invention is to improve the construction of such a preliminary aeration and pre-neutralization tank by combination with the water treatment in an inlet pre-aeration tank in such a way that neutralization of acidic but also basic waste water up to the inlet occurs at least to a considerable extent the filter system.
  • the overall arrangement is selected so that an optimal air intake is achieved in each case.
  • the air is introduced into the pre-ventilation and pre-neutralization container near the floor via a nozzle system with a large number of ver over an entire floor area shared nozzles and slightly above the entry of the wastewater to be aerated also via a distributor arrangement.
  • the water is introduced under pressure in the container at the top by particularly aus ⁇ selected granular or lumpy filter material out and at the top with in detail later 'suction device described further Processing fed.
  • FIG. 1 schematically shows the structure of a pre-aeration and neutralization container in longitudinal section
  • FIG. 2 shows a stomach structure for the water entry
  • FIG. 3 shows the suction device as used in an arrangement according to FIG. 1, FIG. Detail of the. 3, Fig. 5 the. Arrangement of an inlet pre-aeration tank in connection with a heel basin, FIG. 6 the inlet pre-ventilation tank in a vertical section and FIG. 7 this in a top view.
  • a pre-aeration and pre-neutralization container is shown in vertical section, as can be used in the context of the invention.
  • This container consists essentially of a cylindrical housing, which is inside between a load-bearing
  • wastewater supplied within this container is heavily permeated with air and, if its pH value deviates from the neutral value, is neutralized.
  • the wastewater is fed via a changeover switch, 5 the function of which will be explained later, to a water distribution distributor cross via a gate valve with a check valve 9 under pressure, for example 2 atm.
  • the water is pressed through the materials A-, B, C ' and is on the top of the basin-like widened container via a suction system
  • the air with which the wastewater is to be strongly enriched 5 is also supplied via line 8 under a certain excess pressure, e.g. likewise 2 atm and fed via a check valve 9 to a distributor device 12, which in this case is designed in the manner of a pouring can head.
  • Exit line 10 emerge and, as stated, are later fed directly to the inlet pre-aeration tank without further additions.
  • FIG. 2 shows how, for example, a wastewater entry cross - designated 6 in FIG. 1 - can be constructed.
  • the water coming from below is fed to a central housing 16 carrying a plurality of perforated connections 15.
  • Each individual connection 15 has a large number of small outlet openings 16 which point upwards inside the container L when the cross is installed. It should be noted that '' us graphic
  • Openings is reproduced. In reality, the openings are distributed over the spigots with a diameter of the order of magnitude
  • Fig. 3 shows the structure of the waste water suction cross 7, as it is shown schematically on the top of the container in Fig. 1.
  • the wastewater is drawn off in the middle via a connection 16, specifically from the individual nozzles 19 which are designed as a tubular self-supporting sieve, which are held between end sleeves 17 with front-side inlet openings 18 and the inner part 16.
  • the structure of this intake 19 can be seen directly from the sectional view along the line IV-IV from FIG. 3 in FIG. 4. It can be seen that the sieve part
  • one of the connecting piece 19 has a relatively small cross section, which is stretched over only indicated support rods. Furthermore, the sleeve 17 is sufficient back 'and carries at the front of the - reproduced also in this case with a relatively large scale - suction ports 18 and 20 respectively.
  • a heel basin 22 with a feed channel 21 is shown schematically in a sectional view.
  • suspended matter and solids can settle downwards and the mechanically pre-cleaned waste water passes over the upper edge of the partition 23 serving as an overflow in the area of the pre-aeration basin 25, which in FIG dashed outline is shown.
  • the partition wall 23 has a shielding wall 24 drawn in from above.
  • the wastewater with the exhaust air from the pre-neutralization tank is introduced via line 10, while the wastewater pretreated in this way is drawn off via line 4 and fed to the further treatment, namely the pre-aeration and neutralization tank according to FIG. 1, possibly via a solids separator.
  • Ventilation container 25 has four neutralization basins 27 arranged, for example, in a square, which, for constructional reasons, are placed together on a foot with which they can be used together in the sales basin.
  • the neutralization basin 27 the height of which is selected so that it ends approximately 25 cm below the water surface 28, the exhaust air from the pre-neutralization container is fed in via the feed line 10 and is distributed in each individual basin with the aid of a distributor device.
  • Materials for neutralization such as limestone, blue limestone, cevelite, etc., are introduced in the individual basins in accordance with the proposal according to the older patent.
  • the wastewater to be cleaned which is to be cleaned with exhaust air in the area of the pre-aeration tank 25, is sucked off via a suction cross 30 with a structure according to FIGS. 3 and 4 depending on the capacity of the subsequent cleaning system.
  • the suction ports are selected so that there is always a port at approximately the same distance between two neutralizing basins 27.
  • the switching mechanism of the individual pumps, valves, etc. takes place as a function of an electronic monitoring switch 11 in the upper region of the pre-neutralization container 1 (FIG. 1), this switch also transporting the waste water out of the container 1 10 controls how the pumping of water from the pre-aeration tank 25 via the line 4 into the interior of the pre-neutralization tank 1.
  • Such controls are known and can be implemented by a person skilled in the art depending on the size of the system and its loading.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Biological Treatment Of Waste Water (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

Un recipient pour ventiler et neutraliser comprend un boitier cylindrique (1) qui contient une substance solide de neutralisation (A, B, C) entre un tamis ou une grille porteuse (2) et une grille superieure de decharge (3). Les eaux usees sont amenees par une conduite (4) pourvue d'un dispositif de commutation (5) alors que l'air est disperse par un dispositif (12) dispose sous la conduite (4). Les eaux traitees sont dechargees a la partie superieure par un dispositif approprie (7). L'air excedentaire et les gaz quittent le recipient par une conduite de sortie (10).
EP82901294A 1981-04-28 1982-04-27 Dispositif pour ventiler des eaux usees a purifier Withdrawn EP0077358A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3116876 1981-04-28
DE19813116876 DE3116876A1 (de) 1981-04-28 1981-04-28 Anordnung zum belueften von zu reinigendem abwasser

Publications (1)

Publication Number Publication Date
EP0077358A1 true EP0077358A1 (fr) 1983-04-27

Family

ID=6131006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82901294A Withdrawn EP0077358A1 (fr) 1981-04-28 1982-04-27 Dispositif pour ventiler des eaux usees a purifier

Country Status (4)

Country Link
EP (1) EP0077358A1 (fr)
JP (1) JPS5836696A (fr)
DE (1) DE3116876A1 (fr)
WO (1) WO1982003850A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4534867A (en) * 1983-08-24 1985-08-13 Culligan International Company System for removing iron and/or other chemically reducing substances from potable water
GB2141119B (en) * 1983-06-08 1987-02-25 Culligan Int Co Apparatus and process for removing iron and/or other chemically reducing substances from potable water
DE3532031A1 (de) * 1985-09-09 1987-03-12 Eppler Dieter Verfahren zum reduzieren der carbonathaerte von wasser
US5081954A (en) * 1991-07-26 1992-01-21 Alfred R. Priest Method of raising fish
GB9216423D0 (en) * 1992-08-01 1992-09-16 Willis James D Waste water treatment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2834466A (en) * 1955-05-02 1958-05-13 Hament Louis Liquid purification apparatus
DE2739690A1 (de) * 1977-09-02 1979-03-08 Willy F Palmer Verfahren und vorrichtung zum reinigen von abwaessern
FR2414025A1 (fr) * 1978-01-10 1979-08-03 Mallet Entreprise Gle Const Procede et dispositif pour le traitement de l'eau destinee a la consommation publique
FR2430919A1 (fr) * 1978-07-12 1980-02-08 Leparoux Raymond Station d'epuration des eaux-vannes et menageres en particulier pour des habitations individuelles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8203850A1 *

Also Published As

Publication number Publication date
DE3116876A1 (de) 1982-11-11
WO1982003850A1 (fr) 1982-11-11
JPS5836696A (ja) 1983-03-03

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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17P Request for examination filed

Effective date: 19830511

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19851031