DE4024947A1 - Procedure for treatment of waste water - involves continuously monitoring flow rate, ph, temp. and compsn. in activated sludge tank to control water treatment process - Google Patents
Procedure for treatment of waste water - involves continuously monitoring flow rate, ph, temp. and compsn. in activated sludge tank to control water treatment processInfo
- Publication number
- DE4024947A1 DE4024947A1 DE4024947A DE4024947A DE4024947A1 DE 4024947 A1 DE4024947 A1 DE 4024947A1 DE 4024947 A DE4024947 A DE 4024947A DE 4024947 A DE4024947 A DE 4024947A DE 4024947 A1 DE4024947 A1 DE 4024947A1
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- Germany
- Prior art keywords
- activated sludge
- wastewater
- sensor
- tank
- basin
- 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
- 239000010802 sludge Substances 0.000 title claims abstract description 55
- 239000002351 wastewater Substances 0.000 title claims description 35
- 238000000034 method Methods 0.000 title claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 10
- 238000012544 monitoring process Methods 0.000 title 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000001301 oxygen Substances 0.000 claims abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 14
- 238000004062 sedimentation Methods 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 10
- 238000011049 filling Methods 0.000 claims abstract description 9
- 239000000356 contaminant Substances 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 238000005273 aeration Methods 0.000 claims abstract description 6
- 239000010865 sewage Substances 0.000 claims description 7
- 229910002651 NO3 Inorganic materials 0.000 claims description 5
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 5
- 238000001994 activation Methods 0.000 claims description 3
- 230000036782 biological activation Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims description 2
- 206010039897 Sedation Diseases 0.000 claims 1
- 239000003973 paint Substances 0.000 claims 1
- 230000036280 sedation Effects 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 2
- 150000002823 nitrates Chemical class 0.000 abstract 2
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- 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
- C02F3/006—Regulation methods for biological treatment
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D21/00—Control of chemical or physico-chemical variables, e.g. pH value
- G05D21/02—Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/04—Oxidation reduction potential [ORP]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/05—Conductivity or salinity
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/15—N03-N
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/42—Liquid level
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Biodiversity & Conservation Biology (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Activated Sludge Processes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Reinigen von Abwasser, wo nach die im Abwasser befindlichen Schmutzstoffe mechanisch zerkleinert, das vorbehandelte Abwasser im Wege eines biologischen Belebungspro zesses einer Nitrifikation und Denitrifikation unterzogen und das ge reinigte Abwasser nach erfolgter Schlammsedimentation abgeführt wird.The invention relates to a method for cleaning waste water, where after the contaminants in the wastewater are mechanically crushed, the pretreated wastewater by means of a biological activation process subjected to nitrification and denitrification and the ge purified wastewater is discharged after sludge sedimentation.
Die Abwasserreinigung erfolgt bekanntlich in Kläranlagen. Dazu wird das Abwasser regelmäßig einem Rechen- und Siebbecken zugeführt, in dem grobe Schweb- und Schwimmstoffe entfernt werden. Dem Rechen- und Siebbecken ist ein Sandfang nachgeordnet, damit sich sedimen tationsfähige Feststoffe absetzen können. Leichtflüssigkeiten wie Öle, Fette o. dgl. werden gegebenenfalls in einem angeschlossenen Ölab scheider oder Fettfang entfernt. Das Abwasser gelangt in ein Vorklär becken, in dem übrige absetzbare Verunreinigungen abgeschieden werden. Nach Verlassen des Vorklärbeckens werden die im Abwasser gelöst enthaltenen Schmutzstoffe, bei denen es sich im wesentlichen um organische Stoffe handelt, in einem Belebtschlammbecken aufgear beitet. Es folgt dann ein biologischer bzw. biochemischer Nitrifika tions- und Denitrifikationsprozeß. Dafür sind im allgemeinen ebenfalls eigene Becken vorgesehen. In einem sich anschließenden Nachklär becken erfolgt die Sedimentation des Belebtschlammes, während das gereinigte Abwasser abgeführt wird. - Eine derartige Abwasser reinigung ist in verfahrensmäßiger und anlagentechnischer Hinsicht verhältnismäßig aufwendig. Hier will die Erfindung Abhilfe schaffen.As is well known, wastewater treatment takes place in sewage treatment plants. This will the wastewater regularly fed to a rake and sieve basin, in the coarse suspended and floating substances are removed. The arithmetic and the sieve basin is followed by a sand trap so that sediments settle capable of settling solids. Light liquids such as oils, Fats or the like are possibly in a connected oil outlet separator or grease trap removed. The wastewater enters a primary clarifier basin, in which other removable contaminants are deposited will. After leaving the primary clarifier, they are in the wastewater dissolved contaminants, which are essentially organic matter, worked up in an activated sludge basin works. A biological or biochemical nitrifica then follows tion and denitrification process. For that are generally also own pool provided. In a subsequent clarification The sedimentation of the activated sludge takes place during the cleaned wastewater is discharged. - Such wastewater cleaning is procedural and technical relatively expensive. The invention seeks to remedy this.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Reinigen von Abwasser der eingangs beschriebenen Art anzugeben, welches sich in rationeller und wirtschaftlicher Weise durchführen läßt. Die dazu erforderliche Kläranlage soll sich durch Kompaktbauweise mit geringem technischen Aufwand und minimierter Wartung auszeichnen sowie auto matisch betreiben lassen.The invention has for its object a method for cleaning of wastewater of the type described at the beginning, which is can be carried out in a rational and economic manner. The one required wastewater treatment plant should be compact thanks to its compact design Technical effort and minimized maintenance and auto operate matically.
Diese Aufgabe löst die Erfindung in verfahrensmäßiger Hinsicht da durch, daß der Abwasserzulauf und in einem Belebtschlammbecken zu mindest der Sauerstoffgehalt, der pH-Wert, das Redox-Potential, die Temperatur und der Füllstand permanent erfaßt werden, daß in Ab hängigkeit der ermittelten Werte der Abwasserzulauf, die Durch mischung Abwasser/Schmutzstoffe bzw. Schlamm, die Belüftung und der Abwasserablauf zentral gesteuert werden, und daß die Zerkleinerung der Schmutzstoffe während des Füllens des Belebtschlammbeckens, das Durchmischen während des Füllens, der Nitrifikation und Denitrifika tion im Belebtschlammbecken, die Belüftung während der Nitrifikation und nach der Schlammsedimentation die Leerung des Belebtschlamm beckens vorgenommen werden. Außerdem können Ammonium und Nitrat stickstoff erfaßt werden. - Im Rahmen der Erfindung finden also die Nitrifikation, Denitrifikation und Sedimentation in einem Belebt schlammbecken statt. Für die Belebtschlammprozeß ist das Verhältnis der Schmutzstoffe bzw. Abwasserstoffe zum Sauerstoff von besonderer Bedeutung. Daher muß stets der Sauerstoffgehalt erfaßt und geregelt werden. Das gilt einerseits für die Oxidation und folglich Nitrifika tion, andererseits für die Reduktion und folglich Denitrifikation. Die Ermittlung des pH-Wertes und der Temperatur sind von Bedeutung, weil die für die biologische bzw. biochemische Abwasserreinigung erforderlichen Bakterien einerseits gegen Säuren, andererseits gegen Laugen empfindlich und im übrigen an einen bestimmten Temperatur bereich gebunden sind. Das Redox-Potential muß erfaßt werden, um lnformationen über die wirksame Reduktions- und Oxidationskraft des Abwassers bzw. Belebtschlammes zu erhalten. Durch Erfassung von Ammonium- und Nitratstickstoff wird der Ablauf der Nitrifikation/Deni trifikation aufgezeigt, die Meßdaten erlauben gemeinsam mit der Aus wertung der Redox-Potentialmessung eine gezielte Steuerung der Stick stoffelimination. Der Füllstand im Belebtschlammbecken muß erfaßt werden, damit stets nur das sich oberhalb der Schlammablagerungen befindliche und gereinigte Abwasser abgeführt wird. Im Rahmen der Erfindung werden die einzelnen Vorgänge derart gesteuert, daß erst nach dem Füllen des Belebtschlammbeckens die Nitrifikation, Denitri fikation und Sedimentation erfolgen, dagegen das Durchmischen schon im Zuge der Füllung ferner während der Nitrifikation und Denitrifi kation, jedoch nicht mehr während der Sedimentation. Die Belüftung findet lediglich während der Nitrifikation statt, der Wasserablauf und die Leerung des Belebtschlammbeckens erfolgt erst nach der Sedimentation. - Diese Vorgänge lassen sich im Rahmen der Erfindung automatisch und zentral steuern. Dadurch wird die gesamte Abwasser reinigung in verfahrensmäßiger Hinsicht erheblich rationalisiert und wirtschaftlich.The invention achieves this object from a procedural point of view through that the wastewater inlet and in an activated sludge basin at least the oxygen content, the pH value, the redox potential, the Temperature and the fill level are permanently recorded that in Ab dependence of the determined values of the wastewater inflow, the through Mixing waste water / contaminants or sludge, the ventilation and the Wastewater drainage can be controlled centrally, and that the crushing of pollutants during the filling of the activated sludge basin Mixing during filling, nitrification and denitrification tion in the activated sludge basin, ventilation during nitrification and after the sludge sedimentation the emptying of the activated sludge be made. You can also use ammonium and nitrate nitrogen can be detected. - So find in the context of the invention Nitrification, denitrification and sedimentation all in one mud pool instead. The ratio is for the activated sludge process of pollutants or waste water to oxygen of particular Importance. The oxygen content must therefore always be recorded and regulated will. On the one hand, this applies to oxidation and consequently nitrics tion, on the other hand for the reduction and consequently denitrification. The determination of the pH value and the temperature are important, because for biological or biochemical wastewater treatment necessary bacteria on the one hand against acids, on the other hand against Alkalis sensitive and otherwise at a certain temperature area are bound. The redox potential must be recorded in order to Information on the effective reducing and oxidizing power of the Obtain wastewater or activated sludge. By capturing Ammonium and nitrate nitrogen becomes the process of nitrification / deni trification shown, the measurement data allow together with the Aus evaluation of the redox potential measurement a targeted control of the stick substance elimination. The level in the activated sludge basin must be recorded so that only the above the sludge deposits located and cleaned wastewater is discharged. As part of the Invention, the individual processes are controlled so that only after filling the activated sludge tank the nitrification, Denitri Specification and sedimentation take place, but mixing does in the course of filling also during nitrification and denitrification cation, but no longer during sedimentation. The ventilation only takes place during nitrification, the water drain and the activated sludge basin is only emptied after the Sedimentation. - These processes can be within the scope of the invention control automatically and centrally. This will remove all of the wastewater procedural cleaning considerably rationalized and economically.
Gegenstand der Erfindung ist ferner eine Kläranlage, und zwar insbe sondere Kleinkläranlage, die zur Durchführung des erfindungsgemäßen Verfahrens besonders geeignet ist. Eine solche Kläranlage mit einem Vorreinigungsbecken mit Zerkleinerungspumpe und einem Belebtschlamm becken mit Rührwerk und Luftzuführung ist dadurch gekennzeichnet, daß der Zerkleinerungspumpe ein Zulaufsensor nachgeschaltet ist, daß in dem Belebtschlammbecken zumindest ein Sauerstoffsensor, ein pH- Sensor, ein Redox-Sensor, ein Temperatursensor und ein Füllstand sensor angeordnet sind, daß die Sensoren unter Zwischenschaltung von Schalteinrichtungen an eine speicherprogrammierbare Steuerzentrale angeschlossen sind, und daß über die Steuerzentrale die Steuerung der Zerkleinerungspumpe, des Rührwerkes, der Luftzuführung und eines Ablaufes in dem Belebtschlammbecken erfolgt. Diese automatisch arbeitende Kläranlage zeichnet sich einerseits durch besonders kom pakte Bauweise aus, andererseits durch geringe Wartung. Die kom pakte Bauweise resultiert daraus, daß lediglich ein Becken, nämlich das Belebtschlammbecken für die Nitrifikation, Denitrifikation und Sedimentation erforderlich ist und folglich gereinigtes Abwasser un mittelbar aus dem Belebtschlammbecken abgeführt werden kann. Dabei werden über die Steuerung der Zerkleinerungspumpe der Abwasserzu lauf, über die Steuerung des Rührwerkes die Durchmischung und über die Steuerung der Luftzuführung die Sauerstoffversorgung geregelt. Zur Überprüfung des Belebungsprozesses sowie der Stickstoffelimina tion können dem Belebtschlammbecken ein Sauerstoffsensor, ein pH- Sensor, ein Ammonium- und Nitratstickstoffmeßgerät und ein Tempe ratursensor nachgeschaltet und über eigene Schalteinrichtungen an die Steuerzentrale angeschlossen sein. Der Ablauf in dem Belebtschlamm becken ist vorzugsweise zwischen einem minimalen und maximalen Pegelstand oberhalb der Schlammablagerung motorisch verfahrbar und über eine flexible Ablaufleitung an einen Beckenauslaß angeschlossen. Die Steuerzentrale ist zweckmäßigerweise über Analog/Digitalwandler für Datenübertragung an einen Personalcomputer angeschlossen. Von dort aus kann die gesamte Kläranlage unschwer überwacht werden.The invention also relates to a sewage treatment plant, in particular special small sewage treatment plant, which is used to carry out the invention The method is particularly suitable. Such a wastewater treatment plant with a Pre-cleaning basin with shredding pump and an activated sludge basin with agitator and air supply is characterized by that the comminution pump is followed by an inlet sensor that in the activated sludge pool at least one oxygen sensor, a pH Sensor, a redox sensor, a temperature sensor and a level are arranged that the sensors with the interposition of Switching devices to a programmable control center are connected, and that the control center the comminution pump, the agitator, the air supply and a process in the activated sludge basin. This automatically working wastewater treatment plant is characterized on the one hand by particularly com compact design, on the other hand due to low maintenance. The com compact design results from the fact that only one basin, namely the activated sludge tank for nitrification, denitrification and Sedimentation is required and consequently purified wastewater can be removed indirectly from the activated sludge pool. Here the wastewater is controlled by the control of the shredding pump run, mixing through the control of the agitator and the control of the air supply regulates the oxygen supply. To check the activation process and the nitrogen limina the activated sludge basin, an oxygen sensor, a pH Sensor, an ammonium and nitrate nitrogen meter and a tempe downstream sensor and to the Control center must be connected. The process in the activated sludge Basin is preferably between a minimum and a maximum Level above the sludge deposit can be moved by motor and connected to a pool outlet via a flexible drain line. The control center is expediently via analog / digital converter connected to a personal computer for data transfer. From the entire sewage treatment plant can be easily monitored from there.
Im folgenden wird die Erfindung anhand einer lediglich ein Ausfüh rungsbeispiel darstellenden Zeichnung nähert erläutert. Es zeigen: In the following, the invention is based on only one embodiment approximately illustrative drawing approaching explained. Show it:
Fig. 1 ein Fließschema für eine erfindungsgemäße Kläranlage, Fig. 1 is a flow diagram of an inventive treatment plant,
Fig. 2 ein Meß- und Steuerschema für den Gegenstand nach Fig. 1, Fig. 2 shows a measuring and control diagram for the object according to Fig. 1,
Fig. 3 ein Funktionsschema für den Gegenstand nach Fig. 1. Fig. 3 is a functional diagram for the object of FIG. 1.
In den Figuren ist eine Kleinkläranlage zum Reinigen von Abwasser dargestellt, und zwar mit einem Vorreinigungsbecken 1 mit einer Zer kleinerungspumpe 2 und einem Belebtschlammbecken 3 mit einem Rühr werk 4 und Luftzuführung 5, wobei die Luftzuführung 5 über das Rührwerk 4 erfolgt. Der Zerkleinerungspumpe 2 ist ein Zulaufsensor 6 nachgeschaltet. In dem Belebtschlammbecken 3 sind zumindest ein Sauerstoffsensor 7, ein pH-Sensor 8, ein Redox-Sensor 9, ein Nitrat- und Ammoniumstickstoffmeßgerät 9a, ein Temperatursensor 10 und ein Füllstandsensor 11 angeordnet. Außerdem kann ein Leitfähigkeit-Sensor 12 vorgesehen sein. Die Sensoren sind unter Zwischenschaltung von Schalteinrichtungen bzw. Schaltschränken 13 an eine speicherprogram mierbare Steuerzentrale 14 angeschlossen. Über die Steuerzentrale 14 erfolgt die Steuerung der Zerkleinerungspumpe 2 und folglich des Ab wasserzulaufs, des Rührwerkes 4 und folglich der Durchmischung, der Luftzuführung 5 und folglich der Sauerstoffversorgung und die Steuerung eines Ablaufes 15 in dem Belebtschlammbecken 3 zum Ab führen des gereinigten Abwassers. Dem Belebtschlammbecken 3 sind ein Sauerstoffsensor 16, pH-Sensor 17 und ein Temperatursensor 18 nachgeschaltet und über eigene Schalteinrichtungen bzw. Schalt schränke 19 an die Steuerzentrale 14 angeschlossen. Die Nachschaltung erfolgt vorzugsweise in einer Abflußleitung 20 für das gereinigte Ab wasser. The figures show a small purification plant is shown for purifying waste water, with a Vorreinigungsbecken 1 with a cerium size reduction pump 2 and an activated sludge basin 3 with a stirring unit 4 and the air supply 5, wherein the air feed is 5 via the agitator. 4 A feed sensor 6 is connected downstream of the comminution pump 2 . At least one oxygen sensor 7 , a pH sensor 8 , a redox sensor 9 , a nitrate and ammonium nitrogen measuring device 9 a, a temperature sensor 10 and a fill level sensor 11 are arranged in the activated sludge pool 3 . A conductivity sensor 12 can also be provided. The sensors are connected to a programmable control center 14 with the interposition of switching devices or control cabinets 13 . About the control center 14 , the control of the crushing pump 2 and consequently from the water inlet, the agitator 4 and consequently the mixing, the air supply 5 and consequently the oxygen supply and the control of an outlet 15 in the activated sludge basin 3 for carrying out the cleaned waste water. The activated sludge tank 3 is followed by an oxygen sensor 16 , pH sensor 17 and a temperature sensor 18 and connected to the control center 14 via separate switching devices or switch cabinets 19 . The downstream connection is preferably carried out in a drain line 20 for the purified water.
Der Ablauf 15 in dem Belebtschlammverfahren 3 ist zwischen einem minimalen und maximalen Pegelstand oberhalb der Schlammablagerung in diesem Belebtschlammbecken 3 motorisch verfahrbar und über eine flexible Ablaufleitung 21 an einen Beckenauslaß 22 angeschlossen. An die Steuerzentrale 14 sind Analog/Digitalwandler 23, 24 für Datenüber tragung und ein Personalcomputer 25 angeschlossen.The sequence 15 in the activated sludge process 3 is connected between a minimum and maximum water level above the sludge deposition in the activated sludge tank 3 and moved by a motor through a flexible discharge line 21 to a bowl outlet 22nd At the control center 14 analog / digital converter 23 , 24 for data transmission and a personal computer 25 are connected.
In verfahrensmäßiger Hinsicht arbeitet die zentral gesteuerte Klein kläranlage automatisch wie folgt. Der Abwasserzulauf zum Belebt schlammbecken 3 und der Sauerstoffgehalt, der pH-Wert, das Redox- Potential, Nitrat- und Ammoniumstickstoff, die Temperatur und der Füllstand in dem Belebtschlammbecken 3 werden permanent erfaßt. In Abhängigkeit von den ermittelten Werten werden der Abwasserzulauf, die Durchmischung, die Belüftung und der Abwasserablauf zentral ge steuert, folglich auch die Nitrifikations-, Denitrifikations- und Sedi mentationsvorgänge sowie schließlich die Entleerung des Belebtschlamm beckens 3. Die Zerkleinerung der im Abwasser mitgeführten Schmutz stoffe erfolgt während des Füllens des Belebtschlammbeckens 3, das Durchmischen während des Füllens, der Nitrifikation und Denitrifika tion im Belebtschlammbecken 3, dagegen die Belüftung lediglich wäh rend der Nitrifikation. Nach der Schlammsedimentation erfolgt die Lee rung des Belebtschlammbeckens 3. Das gilt für das gereinigte Ab wasser zwischen minimalem und maximalem Pegelstand.In procedural terms, the centrally controlled small wastewater treatment plant works automatically as follows. The waste water supply to the activated sludge basin 3 and the oxygen content, the pH value, the redox potential, nitrate and ammonium nitrogen, the temperature and the fill level in the activated sludge basin 3 are recorded continuously. Depending on the determined values, the wastewater inflow, mixing, aeration and wastewater outflow are controlled centrally, consequently also the nitrification, denitrification and sedi mentation processes and finally the emptying of the activated sludge basin 3 . The comminution of the contaminants carried in the wastewater takes place during the filling of the activated sludge pool 3 , the mixing during filling, the nitrification and denitrification in the activated sludge pool 3 , on the other hand the aeration only during nitrification. After the sludge sedimentation, the activated sludge basin 3 is leached. This applies to the cleaned waste water between the minimum and maximum water levels.
Die erfindungsgemäße Kläranlage ist insbesondere für den Einsatz in kleinen Siedlungsbereichen ohne Kanalisation mit 100 bis 1000 Ein wohnern geeignet.The sewage treatment plant according to the invention is particularly suitable for use in small settlement areas without sewerage with 100 to 1000 Ein suitable for residents.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4024947A DE4024947A1 (en) | 1990-08-07 | 1990-08-07 | Procedure for treatment of waste water - involves continuously monitoring flow rate, ph, temp. and compsn. in activated sludge tank to control water treatment process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4024947A DE4024947A1 (en) | 1990-08-07 | 1990-08-07 | Procedure for treatment of waste water - involves continuously monitoring flow rate, ph, temp. and compsn. in activated sludge tank to control water treatment process |
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| DE4024947A1 true DE4024947A1 (en) | 1992-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| DE4024947A Ceased DE4024947A1 (en) | 1990-08-07 | 1990-08-07 | Procedure for treatment of waste water - involves continuously monitoring flow rate, ph, temp. and compsn. in activated sludge tank to control water treatment process |
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Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4138469A1 (en) * | 1991-11-22 | 1993-05-27 | Intersepara Holding Ag Huenenb | Suspension purificn. and pre-thickening - has inflow set according to outflow for max efficiency at a following discontinuous filter press |
| FR2685692A1 (en) * | 1991-12-31 | 1993-07-02 | Omnium Traitement Valorisa | PROCESS FOR PURIFYING INDUSTRIAL AND / OR URBAN EFFLUENTS OF THE ACTIVATED SLUDGE TYPE |
| WO1993016006A1 (en) * | 1992-02-06 | 1993-08-19 | Jeremy Wickins | Sewage treatment apparatus |
| DE4332815A1 (en) * | 1993-09-27 | 1995-04-13 | Uta Ges Fuer Umwelttechnik Und | Sewage treatment plant operating by the SBR principle |
| FR2715743A1 (en) * | 1994-02-03 | 1995-08-04 | Cise Internationale | Analysis and treatment of waste waters |
| EP0677484A1 (en) * | 1994-04-14 | 1995-10-18 | HERHOF UMWELTTECHNIK GmbH | Process and apparatus for purification of water originating particularly from a compost formation process |
| DE4415602A1 (en) * | 1994-05-04 | 1995-11-09 | Thomae Gmbh Dr K | Aerobic sewage treatment process |
| EP0695720A1 (en) * | 1994-08-02 | 1996-02-07 | WATERPLAN S.p.A. | Method for monitoring and controlling an installation for the biological treatment of waste water |
| WO1996005726A1 (en) * | 1994-08-25 | 1996-02-29 | Aqua Medic Anlagenbau Gmbh | Process and device for regulating and improving water quality |
| WO1996035644A1 (en) * | 1995-05-11 | 1996-11-14 | Biobalance A/S | Novel method for the control of biodegradation |
| DE19533875A1 (en) * | 1995-09-13 | 1997-03-20 | Michael Prof Dr Dr Gitis | Sewage effluent measurement in domestic and industrial premises |
| DE19602385C1 (en) * | 1996-01-24 | 1997-04-03 | Dyckerhoff & Widmann Ag | Batch treatment of waste water |
| EP0764611A3 (en) * | 1995-09-19 | 1998-05-13 | Christian Weise | Small clarification plant for domestic waste waters |
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| BE1012252A3 (en) * | 1998-10-28 | 2000-08-01 | Hydro Top Rech & Dev | Biological station of polluted water treatment. |
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| WO2001025158A1 (en) * | 1999-10-07 | 2001-04-12 | Messer Griesheim Gmbh | Method for treating sewage of a biological sewage treatment plant |
| DE4447792C2 (en) * | 1994-05-17 | 2001-04-19 | Rwe Umwelt Ag | Denitrification in a process for cleaning wastewater using activated sludge |
| EP1428800A1 (en) | 2002-12-12 | 2004-06-16 | Reinhard Boller | Process and device for controlling and regulating a waste water treatment process |
| WO2009003800A1 (en) | 2007-07-02 | 2009-01-08 | Reinhard Boller | Method for determining the amount of oxygen introduced into a process tank of a biological treatment works during a ventilation process |
| EP2196439A1 (en) | 2008-12-11 | 2010-06-16 | Envicon Klärtechnik Verwaltungsgesellschaft mbH | Method for controlling the nitrification and/or denitrification of a sewage system |
| US8246829B2 (en) | 2007-05-10 | 2012-08-21 | O'regan Jr Patrick T | Systems and methods for water treatment and remediation |
| FR2971949A1 (en) * | 2011-02-24 | 2012-08-31 | Simb | Installation for purifying effluent such as domestic origin wastewater, comprises first chamber such as inlet chamber having inlet for raw effluent, second chamber such as clarifier having outlet for purified effluent, and passing unit |
| EP2676936A3 (en) * | 2012-06-22 | 2014-07-30 | Erwin Sander Elektroapparatebau Gmbh | Method for operating a denitrification plant and denitrification plant |
| DE102017223707A1 (en) | 2017-12-22 | 2019-06-27 | Technische Universität Dresden | Method and control device for the automated, continuous and self-sufficient determination of the oxygen concentration in the waste water of a decentralized wastewater treatment plant |
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Cited By (34)
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| DE4138469A1 (en) * | 1991-11-22 | 1993-05-27 | Intersepara Holding Ag Huenenb | Suspension purificn. and pre-thickening - has inflow set according to outflow for max efficiency at a following discontinuous filter press |
| FR2685692A1 (en) * | 1991-12-31 | 1993-07-02 | Omnium Traitement Valorisa | PROCESS FOR PURIFYING INDUSTRIAL AND / OR URBAN EFFLUENTS OF THE ACTIVATED SLUDGE TYPE |
| EP0550367A1 (en) * | 1991-12-31 | 1993-07-07 | OTV Omnium de Traitements et de Valorisation S.A. | Activated sludge process for purifying industrial and/or municipal effluents |
| WO1993016006A1 (en) * | 1992-02-06 | 1993-08-19 | Jeremy Wickins | Sewage treatment apparatus |
| DE4332815A1 (en) * | 1993-09-27 | 1995-04-13 | Uta Ges Fuer Umwelttechnik Und | Sewage treatment plant operating by the SBR principle |
| FR2715743A1 (en) * | 1994-02-03 | 1995-08-04 | Cise Internationale | Analysis and treatment of waste waters |
| EP0677484A1 (en) * | 1994-04-14 | 1995-10-18 | HERHOF UMWELTTECHNIK GmbH | Process and apparatus for purification of water originating particularly from a compost formation process |
| WO1995028359A1 (en) * | 1994-04-14 | 1995-10-26 | Herhof Umwelttechnik Gmbh | Process and device for purifying water, in particular from a composting process |
| DE4415602A1 (en) * | 1994-05-04 | 1995-11-09 | Thomae Gmbh Dr K | Aerobic sewage treatment process |
| DE4415602C2 (en) * | 1994-05-04 | 1998-01-22 | Thomae Gmbh Dr K | Process control of aerobic wastewater treatment with the aid of a process and a system that enables control based on the substrate degradation rate of the organisms |
| DE4447792C2 (en) * | 1994-05-17 | 2001-04-19 | Rwe Umwelt Ag | Denitrification in a process for cleaning wastewater using activated sludge |
| EP0695720A1 (en) * | 1994-08-02 | 1996-02-07 | WATERPLAN S.p.A. | Method for monitoring and controlling an installation for the biological treatment of waste water |
| WO1996005726A1 (en) * | 1994-08-25 | 1996-02-29 | Aqua Medic Anlagenbau Gmbh | Process and device for regulating and improving water quality |
| WO1996035644A1 (en) * | 1995-05-11 | 1996-11-14 | Biobalance A/S | Novel method for the control of biodegradation |
| US5906746A (en) * | 1995-05-11 | 1999-05-25 | Biobalance A/S | Method for the control of biodegradation |
| US5782739A (en) * | 1995-06-13 | 1998-07-21 | The Johns Hopkins University | Rapid optimization of stereotactic radiosurgery using constrained matrix inversion |
| DE19533875A1 (en) * | 1995-09-13 | 1997-03-20 | Michael Prof Dr Dr Gitis | Sewage effluent measurement in domestic and industrial premises |
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| DE19602385C1 (en) * | 1996-01-24 | 1997-04-03 | Dyckerhoff & Widmann Ag | Batch treatment of waste water |
| EP0834476A3 (en) * | 1996-10-04 | 1999-06-09 | Hans-Werner Besten | Process and installation for the degradation of organic contaminants in waste waters |
| EP0834475A3 (en) * | 1996-10-04 | 1999-06-09 | Steag Ag | Process and installation for the degradation of organic contaminants in waste waters |
| EP0872451A3 (en) * | 1997-04-14 | 1999-03-10 | INGERLE, Kurt | Process for purifying ammonium-containing waste waters |
| BE1012252A3 (en) * | 1998-10-28 | 2000-08-01 | Hydro Top Rech & Dev | Biological station of polluted water treatment. |
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| DE19903035C2 (en) * | 1999-01-26 | 2001-01-04 | Rudolf Messner | Process and device for treating waste water in clarifiers |
| WO2001025158A1 (en) * | 1999-10-07 | 2001-04-12 | Messer Griesheim Gmbh | Method for treating sewage of a biological sewage treatment plant |
| EP1428800A1 (en) | 2002-12-12 | 2004-06-16 | Reinhard Boller | Process and device for controlling and regulating a waste water treatment process |
| US8246829B2 (en) | 2007-05-10 | 2012-08-21 | O'regan Jr Patrick T | Systems and methods for water treatment and remediation |
| WO2009003800A1 (en) | 2007-07-02 | 2009-01-08 | Reinhard Boller | Method for determining the amount of oxygen introduced into a process tank of a biological treatment works during a ventilation process |
| EP2196439A1 (en) | 2008-12-11 | 2010-06-16 | Envicon Klärtechnik Verwaltungsgesellschaft mbH | Method for controlling the nitrification and/or denitrification of a sewage system |
| DE102009011107A1 (en) | 2008-12-11 | 2010-06-24 | Envicon Klärtechnik Verwaltungsgesellschaft mbH | Method for controlling the nitrification and / or denitrification of a sewage treatment plant |
| FR2971949A1 (en) * | 2011-02-24 | 2012-08-31 | Simb | Installation for purifying effluent such as domestic origin wastewater, comprises first chamber such as inlet chamber having inlet for raw effluent, second chamber such as clarifier having outlet for purified effluent, and passing unit |
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