WO1998015502A1 - Procede d'epuration des eaux residuaires dans de petites installations d'epuration - Google Patents

Procede d'epuration des eaux residuaires dans de petites installations d'epuration Download PDF

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Publication number
WO1998015502A1
WO1998015502A1 PCT/EP1997/005559 EP9705559W WO9815502A1 WO 1998015502 A1 WO1998015502 A1 WO 1998015502A1 EP 9705559 W EP9705559 W EP 9705559W WO 9815502 A1 WO9815502 A1 WO 9815502A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
liquid
wastewater
aerobic
emptied
Prior art date
Application number
PCT/EP1997/005559
Other languages
German (de)
English (en)
Inventor
Peter Bracher
Original Assignee
Peter Bracher
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 Peter Bracher filed Critical Peter Bracher
Publication of WO1998015502A1 publication Critical patent/WO1998015502A1/fr

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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
    • C02F3/1236—Particular type of activated sludge installations
    • C02F3/1242—Small compact installations for use in homes, apartment blocks, hotels or the like
    • 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
    • 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
    • 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
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

Definitions

  • the invention relates to a method for wastewater treatment in small sewage treatment plants, in particular using existing small sewage treatment plants with two or more chambers.
  • Wastewater treatment processes in small wastewater treatment plants are known and are still widely used, particularly in rural areas with small settlements that cannot be connected to a large central wastewater treatment plant due to the small quantities involved and the long distances involved.
  • the wastewater is usually fed to a multi-chamber pit. Undissolved solid substances are mechanically separated in the first chamber. Heavier solid substances settle on the floor, while floatable substances on the surface e.g. B. held back by baffles.
  • DE-3 837 852 C2 describes a small sewage treatment plant with a multi-chamber pit, in which one or more intermediate chambers are provided by converting existing pits, in which a largely aerobic degradation of the organic pollutants of the waste water can take place through the arrangement of ventilation devices and fixed beds , Air is drawn in via a blower and pressed into the waste water close to the bottom of the intermediate chamber.
  • the fixed beds are located above the air inlet openings and serve the increased colonization with microorganisms.
  • An additional agitator can be provided in the intermediate chamber to further enhance biodegradation.
  • the small sewage treatment plants modified in the manner described improve the known degradation processes in that they ensure a higher degree of degradation as a result of the largely aerobic degradation of the organic constituents of the waste water in the intermediate chamber (s) and the pollution of the water and the soil into which who operate in this way purified wastewater are discharged.
  • the disadvantage of these clarification processes is that the solid constituents contained in the wastewater, which collect in the inlet chamber, are still only subjected to an anaerobic degradation process, and that the odor nuisance emanating from this chamber persists. Also, the accumulating thick matter in the same way as before regularly run and z. ' B. further processed in a large sewage treatment plant.
  • the main disadvantage of this method is the need to convert the existing pits by erecting partitions and a relatively high outlay on equipment, which at the same time requires a high expenditure of energy.
  • Figure 1 shows schematically the process flow using a septic tank with two chambers.
  • FIG. 2 shows the appropriate arrangement of the equipment necessary for the process in a three-chamber septic tank.
  • FIG. 3 shows the flow diagram of the process sequence according to the invention.
  • FIG. 1 first shows the process sequence according to the invention using a septic tank with two chambers.
  • Waste water A occurring in a building G is fed through an inlet Z to a first chamber 1 of a small sewage treatment plant.
  • the heavier solids F settle in the first chamber 1 in a known manner.
  • the liquid part of the waste water flows into the second chamber 2 of the small wastewater treatment plant.
  • growth bodies 3 are arranged which are populated with bacteria which, when supplied with oxygen, first break down the organic dirt load (CSV) and, in the case of advanced CSV degradation, also break down the ammonium present (nitration).
  • CSV organic dirt load
  • the nitrate ion depends on the decrease in the CSV concentration, on the oxygen concentration and on the temperature.
  • the oxygen required for aerobic degradation is entered by taking care, on the one hand, of an unimpeded flow of air via the septic tank from the ventilation opening E of the building G to the outlet opening 6 of the septic tank, i.e. air rises from the outlet of the system 6 to the roof of the Building G to the top.
  • the actual entry of the atmospheric oxygen takes place by means of the two first and second pump devices 4 and 7.
  • the input of the first pump device 4 is located in the first chamber 1 at a location below an upper layer area 5 of the unpurified liquid part L of the waste water A.
  • the first pump device 4 conveys this to a location above the growth body 3 in the second chamber 2, and allows it to flow freely into the growth body 3 through the air.
  • the second pumping device 7 is arranged near the base of the second chamber 2 and conveys cleaned biorases with the fallen off growth bodies to a location above the growth bodies 3 in the second chamber 2, so that the free fall of the Gang of the circulating pump 7 flowing liquid oxygen is entered.
  • purified, oxygen-enriched water W which has been drawn out of the chamber 1 from a location below an upper layer region 5 flows out of the chamber 2 through the water through the opening ⁇ in between the chambers 1 and 2 existing partition back into chamber 1.
  • FIG. 2 the conversion of a three-chamber pit is shown in plan view and in a side sectional view AA.
  • the chamber 1 still serves as a settling tank for settling the heavier solids in the process according to the invention.
  • the partition T between the other two chambers can be broken off, so that a large chamber 2 is formed. If the partition T is not broken off, the previous two chambers act as a common chamber 2.
  • the chamber 2 formed in one way or another is equipped with growth bodies in the manner described above. The wastewater flow is conducted in the same way as this has already been described with reference to FIG. 1.
  • the wastewater to be cleaned is introduced into chamber 1 via inlet Z.
  • the pump device 4 sucks the liquid part L of the waste water A from a point below an upper layer area 5 (see FIG. 1 in this regard) and conveys it to a point above the growth bodies 3 in the second chamber 2 and leaves it free-falling through the air flow into the growth body 3.
  • oxygen accumulation of the waste water takes place, so that an aerobic breakdown of the organic dirt load (CSV) and also an ammonium breakdown (nitrate ion) can take place in the growth bodies 3.
  • CSV organic dirt load
  • nitrate ion ammonium breakdown
  • the biorase falling in chamber 2 is sucked in by the second pumping device 7, which is arranged in the chamber 2 near the bottom, and is also brought back into the chamber 2, above the growth body 3, so that a further CSV degradation, a further nitration and an aerobic breakdown of the sludge that forms are carried out.
  • the retrofitted opening ⁇ flows, as already explained with reference to Figure 1, due to the function of the pump device 4, d. H. the extraction of unpurified wastewater from chamber 1, exhausted, cleaned wastewater from chamber 2 back into chamber 1 and overlaid the settled solids F and the lower area of the liquid part of the wastewater A.
  • This overlay prevents or prevents odor nuisance from the overlaid layers the superimposed area is also enriched with oxygen, so that here too.
  • T. aerobic degradation of the dirt load can take place.
  • the intermittent operation of the pumping devices ensures that the oxygen content of the liquid layer and that of the wastewater emptied temporarily decrease and that nitrate ions which are produced are denitrified.
  • FIG. 3 finally shows the sequence of the method according to the invention on the basis of a flow diagram.
  • the flow diagram shown in FIG. 3 makes the basic principle of the process clear: after the inflow Z of the waste water, it can settle the heavier solid components in chamber 1.
  • a first pumping device 4 brings wastewater that is largely freed from solid components, but is otherwise unpurified, into chamber 2, in which the growth bodies 3, which are colonized by bacteria, are arranged.
  • the first pump means 4 can be 'the waste water through the air above the free falling growth body 3 in the chamber 2 to flow.
  • the wastewater is enriched with atmospheric oxygen, which enables the bacterial degradation of the organic dirt load (CSV) and nitration.
  • CSV organic dirt load
  • the remaining sludge remaining in chamber 1 is removed and removed at large intervals (e.g. once a year).

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biological Treatment Of Waste Water (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

Procédé d'épuration des eaux résiduaires dans de petites installations d'épuration comprenant au moins deux chambres (1, 2), selon lequel les eaux résiduaires sont envoyées dans la première chambre (1) sur le fond de laquelle se déposent les matières solides les plus lourdes (F), et une fraction liquide (L) des eaux résiduaires est envoyée dans les autres chambres (2) dans lesquelles des lits (3) sont disposées en vue de provoquer une colonisation bactérienne, et dans lesquelles se produit une décomposition aérobie des constituants des eaux résiduaires encore présents et se forme un corps d'eau épuré épuisé (W). Conformément à l'invention, pas aspiration de la fraction liquide (L) des eaux résiduaires (A), par l'intermédiaire d'un premier système de pompe (4), dans une chambre subséquente (2), une fraction du corps d'eau épuré épuisé (w) reflue, à travers une ou plusieurs ouvertures (Ö), vers la zone supérieure de la première chambre (1). En outre, la biomasse provenant constamment des lits de bactéries (3), est renvoyée aux lits de bactéries (3), par aspiration de la couche d'eau présente sous ces lits (3), par l'intermédiaire d'un deuxième système de pompe (7), à partir de leur partie supérieure et à partir de l'extérieur du liquide stationnaire, les systèmes de pompes (4, 7) étant commandés par des programmes pour fonctionner avec des interruptions.
PCT/EP1997/005559 1996-10-10 1997-10-09 Procede d'epuration des eaux residuaires dans de petites installations d'epuration WO1998015502A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1996141681 DE19641681A1 (de) 1996-10-10 1996-10-10 Verfahren zur Abwasserreinigung in Kleinkläranlagen
DE19641681.7 1996-10-10

Publications (1)

Publication Number Publication Date
WO1998015502A1 true WO1998015502A1 (fr) 1998-04-16

Family

ID=7808303

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/005559 WO1998015502A1 (fr) 1996-10-10 1997-10-09 Procede d'epuration des eaux residuaires dans de petites installations d'epuration

Country Status (4)

Country Link
CN (1) CN1233232A (fr)
DE (1) DE19641681A1 (fr)
HU (1) HUP0000234A3 (fr)
WO (1) WO1998015502A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6743793B2 (en) 2000-03-09 2004-06-01 Ono Pharmaceutical Co., Ltd. Indole derivatives, process for preparation of the same and use thereof
US7127004B1 (en) 1999-09-28 2006-10-24 Telefonaktiebolaget Lm Ericsson (Publ) Interleaver and method for interleaving an input data bit sequence using a coded storing of symbol and additional information

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19826427C2 (de) 1997-06-17 2000-04-20 Butz Peter Verwaltung Als Trennvorrichtung ausgebildete Rückhaltevorrichtung mit einer insbesondere netzartigen Rückhaltebahn für Kraftfahrzeuge, insbesondere für Kombinations-Personenkraftwagen o. dgl.
DE10033370B4 (de) * 2000-07-08 2014-12-18 Ulrich Bachon Anlage zum Abscheiden von Sink- und fetthaltigen Schwimmstoffen aus diese Stoffe enthaltenden Abwässern

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2025261A5 (fr) * 1969-03-03 1970-09-04 Vendome Cie
WO1989001457A1 (fr) * 1987-08-10 1989-02-23 Alfred Louis Boutaud Procede et dispositif de traitement d'effluents organiques par digestion en milieu conditionne active
DE9319593U1 (de) * 1993-12-21 1994-03-24 Sonnenrein Uwe Kleinkläranlage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2025261A5 (fr) * 1969-03-03 1970-09-04 Vendome Cie
WO1989001457A1 (fr) * 1987-08-10 1989-02-23 Alfred Louis Boutaud Procede et dispositif de traitement d'effluents organiques par digestion en milieu conditionne active
DE9319593U1 (de) * 1993-12-21 1994-03-24 Sonnenrein Uwe Kleinkläranlage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7127004B1 (en) 1999-09-28 2006-10-24 Telefonaktiebolaget Lm Ericsson (Publ) Interleaver and method for interleaving an input data bit sequence using a coded storing of symbol and additional information
US6743793B2 (en) 2000-03-09 2004-06-01 Ono Pharmaceutical Co., Ltd. Indole derivatives, process for preparation of the same and use thereof
US7098234B2 (en) 2000-03-09 2006-08-29 Ono Pharmaceutical Co., Ltd. Indole derivatives, process for preparation of the same and use thereof

Also Published As

Publication number Publication date
HUP0000234A2 (hu) 2000-05-28
CN1233232A (zh) 1999-10-27
DE19641681A1 (de) 1998-07-23
HUP0000234A3 (en) 2000-07-28

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