[go: up one dir, main page]

WO2011098166A1 - Installation de traitement des eaux usées - Google Patents

Installation de traitement des eaux usées Download PDF

Info

Publication number
WO2011098166A1
WO2011098166A1 PCT/EP2010/068914 EP2010068914W WO2011098166A1 WO 2011098166 A1 WO2011098166 A1 WO 2011098166A1 EP 2010068914 W EP2010068914 W EP 2010068914W WO 2011098166 A1 WO2011098166 A1 WO 2011098166A1
Authority
WO
WIPO (PCT)
Prior art keywords
stage
treatment plant
wastewater treatment
biological
plant according
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
Application number
PCT/EP2010/068914
Other languages
German (de)
English (en)
Inventor
Michael Weiss
Christian Naydowski
Georgios Troubonis
Thilo Ittner
Armin Bauer
Martin Staiger
Thomas Wurster
Eckhard Gutsmuths
Werner Gessler
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
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 Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of WO2011098166A1 publication Critical patent/WO2011098166A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/06—Treatment of sludge; Devices therefor by oxidation
    • C02F11/08—Wet air oxidation
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • 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
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • 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
    • C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
    • C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4612—Controlling or monitoring
    • C02F2201/46125—Electrical variables
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/78—Details relating to ozone treatment devices
    • C02F2201/782—Ozone generators
    • 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
    • C02F2209/001—Upstream control, i.e. monitoring for predictive control
    • 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
    • C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • 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
    • C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
    • 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
    • C02F2209/21—Dissolved organic carbon [DOC]
    • 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
    • C02F2303/24—Separation of coarse particles, e.g. by using sieves or screens
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/02—Specific form of oxidant
    • C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical

Definitions

  • the invention relates to a wastewater treatment plant for the purification of waste water of a machine for producing and / or finishing a paper, board, tissue or another fibrous web with at least one biological cleaning stage.
  • Dispersants, bleaching chemicals, cleaning agents, dyes, complexing agents and solubilizers which are specifically fed to the process, carry through
  • Other sources include extracts from the pulps, lignin and lignin derivatives,
  • the high loads can also lead to increased microbiological activity in laid paper, as it contains easily metabolizable substances.
  • Paper properties such as whiteness, opacity, color and firmness are due to the
  • the contaminants can further lead to increased foam by lowering the surface tension, which in turn leads to paper defects and tears or makes the increased use of antifoaming agents required.
  • the accumulation of contaminants in the entire water cycle system depends on the amount of raw materials supplied, the process temperature, the
  • Extractability the water circulation rate, the amount discharged with the wastewater, the discharge of impurities with the paper produced and the supply of fresh water.
  • the narrowing of the water cycles i. the reduced supply of fresh water and the correspondingly reduced removal of wastewater sets up an increased concentration of colloidally dissolved impurities in the circulating waters.
  • dynamic fluctuations of the contaminant loads also represent a limitation for a targeted chemical-technological management of the process. This leads to continuous incorrect dosing of functional chemicals with the effects described above.
  • the object of the invention is therefore to enable the removal of colloidally dissolved impurities in an efficient manner.
  • the object has been achieved in that at least a portion of the wastewater after a biological purification stage in an electrophysical cleaning stage for coagulation and flocculation and then in a
  • Deposition stage with flake enlargement and flocculation is performed.
  • Wastewater treatment plant have several biological purification stages, from which is preferably carried out at least one anaerobic and at least one aerobic.
  • microorganisms In aerobic, biological treatment stages, microorganisms degrade the organic substances in the wastewater and partially oxidize the inorganic substances, whereby air (oxygen) is pumped into the wastewater.
  • a biologically inert COD chemical oxygen demand
  • Wet oxidation is understood to mean the chemical oxidation of organic compounds in a liquid phase.
  • wet oxidation by the introduction of ozone or oxygen at high pressure and high temperature
  • wet-oxidation purification stage is designed electrochemically and / or UV-supported.
  • Oxidizing agents (ozone, OH, O +) by decomposing water
  • the water By applying a DC voltage, the water is decomposed, producing at the anode OH radicals and above a certain current ozone and at the cathode hydrogen.
  • inert electrodes preferably so-called diamond electrodes should be used.
  • the radicals or oxidants are generated by the irradiation of the waste water with UV radiation.
  • colloidally dissolved impurities in the wastewater are oxidized by this wet oxydation and their long-chain molecules are broken up.
  • the broken-up molecules can then be broken down in the subsequent purification stage.
  • the water to be treated is passed through a reactor equipped with sacrificial electrodes in which various electrochemical reactions take place by applying an electric current.
  • the metal hydroxide flakes have a high adsorption capacity and can thus bind finely divided particles to themselves. It also leads to Mittiglungs- and
  • the electrophysical cleaning stage should advantageously with after the last biological purification stage, preferably after the purification stage with
  • the particle agglomerates which were generated by means of the electro-physical precipitation / flocculation in the previous step, here separated from the purified filtrate.
  • the electrophysical cleaning stage allows in the invention, a demand-oriented, targeted transfer and the discharge of the most
  • anionic contaminant as a solid.
  • the treated wastewater may be used as a partial or complete fresh water replacement in the manufacturing process, i. be returned to the production machine of the fibrous web.
  • electrophysical cleaning is at least partially controlled in a load level temporally uniform way.
  • this involves reducing the overall load level of the waters with colloidally dissolved impurities, so that certain water qualities are achieved, which reduce the use of fresh water.
  • Another often much more important object of the invention is the timely
  • the concentration of impurities should be determined by measuring the chemical oxygen demand (COD), the dissolved carbon (DOC), the turbidity, the anionic charge character (SCD), the evaporation residue, the titrated cationic demand or similar. respectively.
  • the intensity of the electrophysical cleaning via the electrical power consumption i. over the height of the voltage applied to the electrodes
  • Voltage and / or the amperage can be controlled.
  • the invention should advantageously be used in particular in partially or completely closed processes with high levels of contaminant load and / or large fluctuations and / or small amounts of sewage or fresh water, since in these cases the effects of the concentration of colloidally dissolved impurities on the process stability are particularly disturbing are.
  • Figure 1 an investment scheme of a wastewater treatment plant
  • Figure 2 a schematic cross section through an electrophysical
  • the wastewater 1 from the post-clarification tank 8 can be conducted to a purification stage 6 with wet oxidation for this purpose. Easily oxidizable substances are to be converted into anionically charged impurities, which are more accessible to the precipitation and flocculation treatment in an electrophysical purification stage 2.
  • the colloidally dissolved impurities anionically charged interfering substances, such as hemicelluloses, resins, polysaccharides, etc., which occur in particular in waste water from papermaking
  • the colloidally dissolved impurities are to be converted into larger agglomerates.
  • the waste water 1 is guided in a container 13 shown in Figure 2, which has a sacrificial anode 1 1, for example made of aluminum and a particular inert cathode 12, which are connected via a control unit 9 with a DC voltage source 14.
  • the cathode 12 may also be made of sacrificial anode material, which provides the opportunity for pole reversal.
  • Electrophysical precipitation for the purpose of coagulation and flocculation of colloidally dissolved impurities.
  • the current intensity can be changed via the control unit 9 so that it is not just one
  • Separation stage 5 it comes to flake enlargement and flocculation, in particular by means of flotation, sedimentation, filtration or the like.
  • the particle agglomerates 10 which were produced with the aid of the electro-physical purification stage 2, separated from the effluent 1 and discharged.
  • Purification stage allows the partial or complete return of the cleaned effluent 1 after the deposition stage 5 to the paper machine, without affecting the paper machine operation, the effectiveness of the process chemicals, etc. by the concentration of colloidally dissolved, anionic or non-ionic impurities.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

L'invention concerne une installation de traitement des eaux usées destinée à nettoyer des eaux usées (1) d'une machine de fabrication et/ou de raffinage d'une bande de papier, de carton, de papier sanitaire et domestique ou d'une autre bande de matière fibreuse, comprenant au moins une zone de nettoyage biologique (3,4). L'invention vise à éliminer de manière efficace les substances de solution colloïdale. A cet effet, au moins une partie des eaux usées (1) est conduite, après une zone de nettoyage biologique (4), dans une zone de traitement électrophysique (5) par coagulation et floculation, puis dans une zone de précipitation (6) où les flocons sont grossis et précipités.
PCT/EP2010/068914 2010-02-11 2010-12-06 Installation de traitement des eaux usées Ceased WO2011098166A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010001796.5 2010-02-11
DE102010001796A DE102010001796A1 (de) 2010-02-11 2010-02-11 Abwasserreinigungsanlage

Publications (1)

Publication Number Publication Date
WO2011098166A1 true WO2011098166A1 (fr) 2011-08-18

Family

ID=43609408

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/068914 Ceased WO2011098166A1 (fr) 2010-02-11 2010-12-06 Installation de traitement des eaux usées

Country Status (2)

Country Link
DE (1) DE102010001796A1 (fr)
WO (1) WO2011098166A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103408201A (zh) * 2013-08-30 2013-11-27 河南新大新材料股份有限公司 晶硅片砂浆回收中工业废水的处理方法
CN104310712A (zh) * 2014-11-03 2015-01-28 北京高能时代环境技术股份有限公司 一种煤化工废水的处理方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103864266B (zh) * 2014-03-24 2015-11-04 江苏省环境科学研究院 一种废纸造纸废水、污泥循环回用方法
CN105036461A (zh) * 2015-07-02 2015-11-11 合肥白云环卫设备有限公司 一种高浓度氨氮垃圾滤液深度处理的方法
SE2450456A1 (en) * 2024-04-25 2025-10-26 Axolot Solutions Holding Ab Fractionation of effluent from a pulp mill

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123341A (en) * 1976-09-27 1978-10-31 Sulzer Brothers Limited Apparatus and process for treating contaminated water
JPS57117382A (en) * 1981-01-14 1982-07-21 Masakuni Kanai Treatment of organic waste water
DE19625346A1 (de) * 1996-06-25 1998-01-02 Joseph Dipl Ing Maier Verfahren zur Wasseraufbereitung in einem geschlossenen Kreislauf mit Reaktor
US6238546B1 (en) * 1996-10-23 2001-05-29 Louis H. Knieper Electrochemical treatment of effluent water
WO2003086981A1 (fr) * 2002-04-08 2003-10-23 Aquenox Pty Ltd Procede d'installation d'un appareil d'elimination de contaminants
EP1659098A2 (fr) * 2003-06-19 2006-05-24 Kansai Paint Co., Ltd. Procede de decantation de l'eau residuaire contenant une substance organique
DE102006060426A1 (de) * 2006-12-20 2008-06-26 Meri Entsorgungstechnik für die Papierindustrie GmbH Verfahren und Vorrichtung zur aeroben Aufbereitung von Abwasser

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123341A (en) * 1976-09-27 1978-10-31 Sulzer Brothers Limited Apparatus and process for treating contaminated water
JPS57117382A (en) * 1981-01-14 1982-07-21 Masakuni Kanai Treatment of organic waste water
DE19625346A1 (de) * 1996-06-25 1998-01-02 Joseph Dipl Ing Maier Verfahren zur Wasseraufbereitung in einem geschlossenen Kreislauf mit Reaktor
US6238546B1 (en) * 1996-10-23 2001-05-29 Louis H. Knieper Electrochemical treatment of effluent water
WO2003086981A1 (fr) * 2002-04-08 2003-10-23 Aquenox Pty Ltd Procede d'installation d'un appareil d'elimination de contaminants
EP1659098A2 (fr) * 2003-06-19 2006-05-24 Kansai Paint Co., Ltd. Procede de decantation de l'eau residuaire contenant une substance organique
DE102006060426A1 (de) * 2006-12-20 2008-06-26 Meri Entsorgungstechnik für die Papierindustrie GmbH Verfahren und Vorrichtung zur aeroben Aufbereitung von Abwasser

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103408201A (zh) * 2013-08-30 2013-11-27 河南新大新材料股份有限公司 晶硅片砂浆回收中工业废水的处理方法
CN104310712A (zh) * 2014-11-03 2015-01-28 北京高能时代环境技术股份有限公司 一种煤化工废水的处理方法
CN104310712B (zh) * 2014-11-03 2016-02-24 北京高能时代环境技术股份有限公司 一种煤化工废水的处理方法

Also Published As

Publication number Publication date
DE102010001796A1 (de) 2011-08-11

Similar Documents

Publication Publication Date Title
WO2011098167A1 (fr) Installation de traitement des eaux usées
Nasrullah et al. Treatment of palm oil mill effluent by electrocoagulation with presence of hydrogen peroxide as oxidizing agent and polialuminum chloride as coagulant-aid
DE2930194C2 (de) Vorrichtung zum Aufbereiten von Abwasser
WO2011098165A1 (fr) Installation de traitement des eaux usées
EP2188217A1 (fr) Dispositif et procédé pour décomposer des substances nocives dans un liquide et utilisation d'un tel dispositif
WO2011098166A1 (fr) Installation de traitement des eaux usées
EP1473278A1 (fr) Procédé pour le traitement des eaux usées
DE3627407C2 (de) Verfahren zur Reinigung von Wasserkreisläufen bei der Halbstoff- und Papierherstellung
WO2008012303A1 (fr) Procédé d'élimination de polluants présents dans des liquides et dispositif pour la mise en œuvre de ce procédé
EP0847374B1 (fr) Procede de traitement des eaux en circuit ferme avec utilisation d'un reacteur
WO2012139879A1 (fr) Procédé de traitement de liquides et de dispersions avec des ions métalliques produits par voie électrolytique au moyen d'une cellule d'électrolyse à deux chambres
DE4116557A1 (de) Verfahren zur behandlung von abwasser in anlagen zur aufbereitung von altpapier
DE102010030996A1 (de) Metall-Ionen
WO1986004585A1 (fr) Procede et systeme pour la floculation de substances floculables dans des suspensions en particulier pour l'epuration des eaux de rejet d'installations de desencrage
EP1940746B1 (fr) Procede de traitement d'eau de fabrication
DE102013110303B4 (de) Behandlung von Abwasser mit kolloidalen Inhaltsstoffen
DE102009056175B4 (de) Verfahren und Vorrichtung zur Entfernung partikulärer und/oder gelöster Stoffe aus wässrigen Medien
DE102010002339A1 (de) Abwasserreinigungsanlage
DE102011016837A1 (de) Verfahren zum Behandeln von Flüssigkeiten und Dispersionen mit elektrolytisch unter Verwendung einer Gasdiffusionselektrode hergestellten Metallionen
DE102013207491A1 (de) Vorrichtung zur Behandlung von flüssigen Arbeitsmedien
WO2014001051A1 (fr) Installation et procédé de production d'une bande de matière fibreuse
EP2443069A1 (fr) Installation et procédé de traitement des eaux industrielles par séparation séparée des gaz et des matières solides
DE102009056174A1 (de) Verfahren zur Entfernung kolloidal gelöster und partikulär geladener Teilchen aus wässrigen Medien
DE102010002345A1 (de) Abwasserreinigungsanlage
DE4120519A1 (de) Verfahren zur senkung der belastung von abwaessern

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10788067

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 10788067

Country of ref document: EP

Kind code of ref document: A1