EP1192107A1 - Procede de conduite de traitement d'eaux residuaires urbaines en fonction d'indications de charges - Google Patents
Procede de conduite de traitement d'eaux residuaires urbaines en fonction d'indications de chargesInfo
- Publication number
- EP1192107A1 EP1192107A1 EP00946035A EP00946035A EP1192107A1 EP 1192107 A1 EP1192107 A1 EP 1192107A1 EP 00946035 A EP00946035 A EP 00946035A EP 00946035 A EP00946035 A EP 00946035A EP 1192107 A1 EP1192107 A1 EP 1192107A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conductivity
- turbidity
- polluting
- function
- raw water
- 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- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
-
- 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
-
- 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
- C02F2209/11—Turbidity
-
- 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
- C02F2209/40—Liquid flow rate
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/903—Nitrogenous
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/906—Phosphorus containing
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/908—Organic
Definitions
- the present invention relates generally to the operation of urban wastewater treatment plants, on the basis of indications relating to the polluting loads measured at the entrance to the treatment station, in the form of conductivity values, turbidity and flow rate: a practical illustration is given for an activated sludge treatment station, for the physico-chemical phosphate removal of raw water, simultaneously with the purification by activated sludge, the objective of this invention being to define automated management rules for the addition of phosphate reagents (ferric chloride) to the raw water in proportion to the polluting load arriving in the treatment plant for said raw water.
- phosphate reagents ferrric chloride
- the present invention is based on the discovery that, for urban waste water, any pollutant load (whether carbon, nitrogen, phosphorus, etc.) to be treated, can be estimated from simple measurements of flow rate, conductivity and raw water turbidity.
- the present licensee has studied, for example, the relationship between the total phosphorus load and:
- the invention is not limited to the treatment of raw water and that the use of charge indicators is suitable for monitoring any purification phase on the treatment line.
- DE-A-4 006 689 describes a process for managing water treatment installations on the basis of conductivity and turbidity measurements of the water to be treated.
- the present invention provides a method which consists, from continuous measurements of the conductivity and the turbidity of the raw water to be treated, to carry out the following operations :
- the process which is the subject of the present invention aims to determine an equivalent of the concentration of pollutants which is a function of the pollution indicators, i.e. conductivity and turbidity values measured continuously. Measuring the value of the flow rate of the raw water to be treated then makes it possible to assess the load of pollutants from this estimated concentration.
- the polluting element to be removed can be an ortho-, meta- or polyphosphate or, in general, a mineral or organic chemical compound containing phosphorus.
- This polluting element can also be a nitrate or in general an inorganic or organic chemical compound containing nitrogen or alternatively, an inorganic or organic chemical compound containing carbon.
- the relationship between the estimated concentration and the pollution indicators associates: the conductivity with the dissolved pollution, which, for a polluting load consisting of phosphorus, is essentially composed of orthophosphates. Conductivity ranges are therefore associated with equivalent equivalents of soluble phosphorous elements; turbidity to colloidal and particulate pollution, this pollution consisting of various elements, including phosphorus, linked to suspended matter. Turbidity ranges are therefore associated with equivalent equivalents of insoluble phosphorus elements.
- FIGS. 1 and 2 of the appended figures there have been illustrated changes over time in pollution indicators (conductivity and turbidity), the first ( Figure 1) typical of a dry weather regime and the second ( Figure 2), a rainy weather regime.
- the two conductivity and turbidity parameters evolve differently when domestic wastewater is mixed with rainwater. Dry weather.
- the conductivity remains relatively stable during the day.
- the evolution of turbidity follows that of flow.
- the average daily concentrations of total phosphorus here vary between 10 and 15 mg / l.
- Rainy weather Figure 2 shows the evolution of the conductivity and turbidity parameters during flow increases linked to rainy phenomena.
- the evolution of turbidity can be expressed in two different ways: either the turbidity increases and reaches a high value, generally over a short period when the intensity of the rain is significant, favoring the routing of stagnant deposits in the networks towards the entrance of the station (example of the first day of figure 2).
- the increase in turbidity indicates an increase in particulate pollution, therefore of insoluble phosphorus; either the turbidity remains constant or even decreases slowly during the rainy episode, in particular when the rainy element is not preceded by a relatively long duration of dry weather (example of the second day of FIG. 2).
- a reduction in turbidity thus translates a dilution of the insoluble elements.
- Equivalent soluble element concentration values are associated with conductivity ranges. For example, the average of the sample concentrations is associated with the range of conductivity values most often encountered. The minimum value for sample concentrations is associated with the lowest range encountered for conductivity. Conversely, the value maximum of sample concentrations is associated with the highest range encountered for conductivity. The intermediate ranges are then completed, by linear relationship or by any other type of regression. The function is thus described in logical form with a correspondence between the conductivity range and the equivalent concentrations of the soluble element. Compared to the illustrations of FIGS. 1 and 2 relating to dry weather and rainy weather, one can thus give examples:
- the second function is constructed in the same way by associating the equivalent concentration values of non-soluble element with ranges of turbidity.
- This learning phase acquired, continuous measurements can be used to conduct the process.
- a total concentration is obtained by the addition of the complementary concentrations in soluble and non-soluble elements. This estimated concentration is multiplied by the flow rate in order to obtain an equivalent charge.
- FIG. 3 of the accompanying drawings is a management diagram illustrating the process of the invention applied to the simultaneous physico-chemical phosphate removal.
- the quantity of additions of phosphate reagents (ferric chloride) necessary to eliminate the estimated total phosphate load is then determined.
- automatic management of the additions of phosphate reagents is carried out as a function of the three parameters of flow rate, conductivity and turbidity without the need to use sophisticated equipment of the continuous analyzer type: in fact, the equipment used by the process object of the invention is of a completely conventional nature: the conductivity of raw water is measured by electromagnetic induction using a conventional conductimeter; - the turbidity measurement is carried out using a probe turbidimeter and, the flow measurement is carried out using a flow meter
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Pathology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9908493A FR2795713B1 (fr) | 1999-07-01 | 1999-07-01 | Procede de conduite d'installations de traitement d'eaux residuaires urbaines, en fonction d'indications de charges |
FR9908493 | 1999-07-01 | ||
PCT/FR2000/001812 WO2001002306A1 (fr) | 1999-07-01 | 2000-06-29 | Procede de conduite de traitement d'eaux residuaires urbaines en fontion d'indications de charges |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1192107A1 true EP1192107A1 (fr) | 2002-04-03 |
Family
ID=9547597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00946035A Withdrawn EP1192107A1 (fr) | 1999-07-01 | 2000-06-29 | Procede de conduite de traitement d'eaux residuaires urbaines en fonction d'indications de charges |
Country Status (10)
Country | Link |
---|---|
US (1) | US6656367B1 (fr) |
EP (1) | EP1192107A1 (fr) |
AU (1) | AU5992900A (fr) |
BR (1) | BR0012030A (fr) |
CA (1) | CA2376478A1 (fr) |
DE (1) | DE1192107T1 (fr) |
ES (1) | ES2170739T1 (fr) |
FR (1) | FR2795713B1 (fr) |
MX (1) | MXPA01013339A (fr) |
WO (1) | WO2001002306A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU101786B1 (en) | 2020-05-07 | 2021-11-08 | Rtc4Water S A R L | Method for operating a sewer network system |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2871153B1 (fr) * | 2004-06-02 | 2006-08-11 | Otv Sa | Procede de traitement d'eaux a l'aide d'un reacteur biologique, dans lequel la vitesse d'air injecte dans le reacteur est regulee, et dispositif correspondant |
FR2909661B1 (fr) | 2006-12-08 | 2009-03-20 | Otv Sa | Procede de traitement d'eaux a l'aide d'un reacteur biologique integrant une biomasse aeree,mettant alternativement en oeuvre des modes d'aeration continue et sequencee |
US20120179373A1 (en) * | 2011-01-11 | 2012-07-12 | University Of Seoul Industry Cooperation Foundation | Method for measuring total phosphorus using multi-parameter water quality data |
DE102013102810A1 (de) * | 2012-04-12 | 2013-10-17 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Verfahren zur Erfassung und/oder Überwachung des Feststoffgehalts bei der Rohwasserförderung aus Brunnen |
US11370679B2 (en) * | 2019-06-06 | 2022-06-28 | Yangtze Delta Region Institute of Tsinghua University, Zhejiang | Method for predicting discharge level of effluent from decentralized sewage treatment facilities |
GB201912451D0 (en) * | 2019-08-30 | 2019-10-16 | Environmental Monitoring Solutions Ltd | Autonomous wastewater treatment system |
CN113848237A (zh) * | 2021-09-18 | 2021-12-28 | 上海电气数智生态科技有限公司 | 一种基于cod软测量的污水水质监控方法 |
CN114605011A (zh) * | 2022-03-31 | 2022-06-10 | 中国能源建设集团华中电力试验研究院有限公司 | 一种废水回收处理系统及方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0240974B1 (fr) * | 1986-04-10 | 1992-07-29 | Hitachi, Ltd. | Système contrôlant l'injection de floculant |
DE3843679A1 (de) * | 1988-12-23 | 1990-07-05 | Gimat | Verfahren zur wasseraufbereitung |
DE4006689A1 (de) * | 1990-01-31 | 1991-08-01 | Rudolph Karl Ulrich Prof Dr Dr | Verfahren und vorrichtung zur erfassung der qualitaet von abwaessern |
JPH0638951B2 (ja) * | 1990-04-04 | 1994-05-25 | 栗田工業株式会社 | 水系の汚れのモニタリング方法 |
US5540836A (en) * | 1994-06-16 | 1996-07-30 | Coyne; Thomas J. | Wastewater treatment system and method |
DE29607093U1 (de) * | 1996-04-19 | 1996-07-18 | Ingenieurgemeinschaft agwa GmbH, 30161 Hannover | Adaptiv, wassergüteabhängig gesteuertes Abwasserbauwerk |
EP0806399A1 (fr) * | 1996-05-10 | 1997-11-12 | Wehrle-Werk Ag | Procédé et dispositif pour la purification d'eaux résiduaires |
US6379538B1 (en) * | 1997-06-05 | 2002-04-30 | Lucid Treatment Systems, Inc. | Apparatus for separation and recovery of liquid and slurry abrasives used for polishing |
WO1999002239A1 (fr) * | 1997-07-08 | 1999-01-21 | Molten Metal Technology, Inc. | Procede et appareil de traitement de l'eau |
-
1999
- 1999-07-01 FR FR9908493A patent/FR2795713B1/fr not_active Expired - Fee Related
-
2000
- 2000-06-29 MX MXPA01013339A patent/MXPA01013339A/es active IP Right Grant
- 2000-06-29 BR BR0012030-8A patent/BR0012030A/pt not_active Application Discontinuation
- 2000-06-29 US US10/019,720 patent/US6656367B1/en not_active Expired - Fee Related
- 2000-06-29 WO PCT/FR2000/001812 patent/WO2001002306A1/fr active Application Filing
- 2000-06-29 DE DE1192107T patent/DE1192107T1/de active Pending
- 2000-06-29 CA CA002376478A patent/CA2376478A1/fr not_active Abandoned
- 2000-06-29 ES ES00946035T patent/ES2170739T1/es active Pending
- 2000-06-29 AU AU59929/00A patent/AU5992900A/en not_active Abandoned
- 2000-06-29 EP EP00946035A patent/EP1192107A1/fr not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO0102306A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU101786B1 (en) | 2020-05-07 | 2021-11-08 | Rtc4Water S A R L | Method for operating a sewer network system |
WO2021224292A1 (fr) | 2020-05-07 | 2021-11-11 | Rtc4Water S.À R.L. | Procédé de fonctionnement d'un système de réseau d'égouts |
Also Published As
Publication number | Publication date |
---|---|
AU5992900A (en) | 2001-01-22 |
ES2170739T1 (es) | 2002-08-16 |
WO2001002306A1 (fr) | 2001-01-11 |
CA2376478A1 (fr) | 2001-01-11 |
FR2795713B1 (fr) | 2003-10-03 |
US6656367B1 (en) | 2003-12-02 |
BR0012030A (pt) | 2002-04-30 |
DE1192107T1 (de) | 2002-10-17 |
MXPA01013339A (es) | 2002-08-20 |
FR2795713A1 (fr) | 2001-01-05 |
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Legal Events
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