DE3718856A1 - Water treatment plant for water contaminated with environmentally harmful organic substances, such as chlorinated hydrocarbons - Google Patents

Water treatment plant for water contaminated with environmentally harmful organic substances, such as chlorinated hydrocarbons

Info

Publication number
DE3718856A1
DE3718856A1 DE19873718856 DE3718856A DE3718856A1 DE 3718856 A1 DE3718856 A1 DE 3718856A1 DE 19873718856 DE19873718856 DE 19873718856 DE 3718856 A DE3718856 A DE 3718856A DE 3718856 A1 DE3718856 A1 DE 3718856A1
Authority
DE
Germany
Prior art keywords
water
polyurethane foam
base
ether
chlorinated hydrocarbons
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.)
Granted
Application number
DE19873718856
Other languages
German (de)
Other versions
DE3718856C2 (en
Inventor
Heinz Schnieders
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19873718856 priority Critical patent/DE3718856A1/en
Publication of DE3718856A1 publication Critical patent/DE3718856A1/en
Application granted granted Critical
Publication of DE3718856C2 publication Critical patent/DE3718856C2/de
Granted 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0202—Separation of non-miscible liquids by ab- or adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating

Abstract

Water or contact water treatment plants for water contaminated with environmentally harmful organic substances such as chlorinated hydrocarbons or substances containing mineral oil. In these plants, which can also be termed adsorption and absorption filters, instead of activated charcoal, polyurethane foam (base, ether) is used as filter or adsorption and absorption medium. The polyurethane foam (base: ether) serving as filter aid is regenerated in a drycleaning machine and can thus be reused. The substances adhering or absorbed to the polyurethane foam, depending on their properties, either remain in the circulation or a drycleaning machine and again perform their function there or remain in the still base of a drycleaning machine and can be disposed of from there.

Description

Die Erfindung bezieht sich auf eine Wasser-Aufbereitungs­ anlage für mit umweltschädlichen, organischen Substanzen wie z. B. chlorierten Kohlenwasserstoffen verunreinigtes Wasser; dabei werden die organischen Substanzen, insbesondere chlorier­ te Kohlenwasserstoffe wie z. B. Perchloräthylen an Polyurethanschaumstoff (Basis: Äther) ad- und absorbiert. Zur Verdeutlichung sei erwähnt, daß Polyurethanschaumstoff (Basis: Äther) auch in großen Mengen zur Herstellung von Sitzkissen, Polstermöbeln und Matratzen verwendet wird.The invention relates to a water treatment plant for with environmentally harmful, organic substances such as e.g. B. chlorinated hydrocarbons contaminated water; the organic substances, especially chlorination te hydrocarbons such. B. perchlorethylene Polyurethane foam (base: ether) adsorbed and absorbed. For clarification, it should be mentioned that polyurethane foam (Basis: ether) also in large quantities for the production of Seat cushions, upholstered furniture and mattresses are used.

Nach neuestem Gesetz darf mit umweltschädigenden Substanzen verunreinigtes Wasser, sogenanntes Kontaktwasser, nicht in eine Kanalisation geleitet werden, ohne dieses Kontaktwasser von den umweltschädigenden Substanzen zu befreien. Hiervon sind besonders Betriebe betroffen, die Perchloräthylen verwenden, wie chemische Reinigungen und viele andere Industriebetriebe.According to the latest law, environmentally harmful Substances contaminated water, so-called contact water, cannot be drained into a sewage system without it Contact water from the environmentally harmful substances to free. This particularly affects companies that: Use perchlorethylene, such as dry cleaners and many other industrial companies.

Es ist eine Wasser-Aufbereitungsanlage gemäß der Bezeichnung der Erfindung bekannt, bei der als Adsorptionsmittel Aktiv­ kohle verwendet wird.It is a water treatment plant according to the name known of the invention, in the active as an adsorbent coal is used.

In der Praxis hat sich aber die Entsorgung der nassen, also mit Wasser und organischen Sub­ stanzen behafteten Aktivkohle als problematisch erwiesen. Hier will die Erfindung Abhilfe schaffen. Die Erfindung, wie sie in den Ansprüchen gekennzeichnet ist, löst die Aufgabe, ein Ad- und Absorptionsmittel zu schaffen, bei dem die Ent­ sorgung problemlos in der Weise geschieht, daß der mit chlorierten Kohlenwasserstoffen und/oder anderen organischen Substanzen behaftete Polyurethanschaumstoff (Basis: Äther) mit einer Schichtdicke von etwa 5 bis 10 mm wie normale Bekleidungstextilien in einer chemischen Reinigungsmaschine gereinigt und getrocknet wird (chlorierte Kohlenwasserstoffe). In practice, however Dispose of the wet, so with water and organic sub Stamped activated carbon proved problematic. The invention seeks to remedy this. The invention, as characterized in the claims, solves the task to create an adsorbent and absorbent in which the Ent supply happens easily in such a way that with chlorinated hydrocarbons and / or other organic Polyurethane foam with substances (base: ether) with a layer thickness of about 5 to 10 mm as normal Garment textiles in a chemical cleaning machine is cleaned and dried (chlorinated hydrocarbons).  

Chlorierte Kohlenwasserstoffe wie Perchloräthylen verbleiben so im Kreislauf der chemischen Reinigungsmaschine und erfüllen dort weiter ihren Zweck.Chlorinated hydrocarbons such as perchlorethylene remain so in the cycle of the chemical cleaning machine and meet continue their purpose there.

Andere adsorbierte Substanzen wie z. B. Mineralöle verbleiben in der Destillierblase der chemischen Reinigungsmaschine und können von dort entsorgt werden.Other adsorbed substances such as B. Mineral oils remain in the still of the chemical cleaning machine and can be disposed of from there.

Die Polyurethanschaumstofftücher mit einer Schichtdicke von 5 bis 10 mm werden am Schluß des Reinigungsprozesses wie normale Bekleidungstextilien völlig trocken und geruchfrei und von allen ad- und absorbierten Substanzen befreit, der chemischen Reinigungsmaschine entnommen und können danach immer wieder verwendet werden. Die Schichtdicke von nur 5 bis 10 mm ist deshalb erforderlich, weil der Trocknungsprozeß in der chemischen Reinigungsmaschine wesentlich länger dauern würde als bei normalen Bekleidungs­ textilien.The polyurethane foam cloths with a layer thickness of 5 to 10 mm are like at the end of the cleaning process normal clothing textiles completely dry and odorless and freed from all adsorbed and absorbed substances, removed from the chemical cleaning machine and can thereafter be used again and again. The layer thickness of only 5 to 10 mm is necessary because of the Drying process in the chemical cleaning machine would take much longer than normal clothing textiles.

Die durch die Erfindung erreichten Vorteile sind im wesentlichen darin zu sehen, daß das Ad- und Absorptionsmittel Poly­ urethanschaumstoff (Basis: Äther) durch Abquetschen des anhaftenden Wassers, jedoch behaftet mit den absorbierten chlorierten Kohlenwasserstoffen und anderen organischen Substanzen, relativ wasserfrei in einer chemischen Reini­ gungsmaschine regeneriert und somit wiederverwendet werden kann; dies ist bei dem Adsorptionsmittel Aktivkohle nicht der Fall.The advantages achieved by the invention are substantial to be seen in the fact that the adsorbent and absorbent poly urethane foam (base: ether) by squeezing the adhering water, but with the absorbed chlorinated hydrocarbons and other organic Substances, relatively anhydrous in a chemical cleaning machine can be regenerated and thus reused can; this is not the case with the activated carbon adsorbent the case.

Im folgenden wird die Erfindung anhand von lediglich einen Ausführungsweg darstellenden Zeichnung näher erläutert.In the following, the invention is based on only one Execution path illustrating drawing explained in more detail.

Die Figur zeigt eine Kontaktwasser-Aufbereitungsanlage für mit Perchloräthylen verunreinigtes Wasser.The figure shows a contact water treatment plant for water contaminated with perchlorethylene.

Das sogenannte Kontaktwasser wird zunächst in den Behälter A eingeleitet. Grobe, nicht emulgierte Teilchen Perchloräthylen setzen sich am Boden des Behälters infolge des höheren spezifischen Gewichtes ab und werden wieder dem Betrieb zuge­ führt. Das Wasser mit den emulgierten (gelösten) Anteilen an Perchloräthylen durchströmt im Behälter B einen Filter­ einsatz aus Polyurethanschaumstoff (Basis: Äther).The so-called contact water is first introduced into tank A. Coarse, non-emulsified particles of perchlorethylene settle on the bottom of the container due to the higher specific weight and are fed back into operation. The water with the emulsified (dissolved) parts of perchlorethylene flows through a filter insert made of polyurethane foam (base: ether) in tank B.

Die nur 5 bis 10 mm starken Polyurethanschaumstofftücher ad- bzw. absorbieren die emulgierten Anteile des Perchloräthylens.The only 5 to 10 mm thick polyurethane foam cloths or absorb the emulsified portions of perchlorethylene.

Wenn das im Behälter B befindliche Modul aus Poly­ urethanschaumstoff gesättigt ist, wird es oberhalb des Gefäßes A abgequetscht und somit vom Wasser fast gänzlich befreit und gelangt zur Regenerierung in die chemische Reinigungs­ maschine. Das Modul im Behälter C wird sicherheitshalber in den Behälter B versetzt. Der Behälter C erhält ein neues bzw. regeneriertes Modul.When the poly urethane foam module in the container B is saturated, it is squeezed off above the vessel A and thus almost completely freed from the water and reaches the chemical cleaning machine for regeneration. For safety reasons, the module in container C is placed in container B. The container C receives a new or regenerated module.

Claims (2)

1. Wasser- bzw. Kontaktwasser-Aufbereitungsanlagen für mit umweltschädlichen, organischen Substanzen wie z. B. chlorier­ ten Kohlenwasserstoffen oder mineralölhaltige Substanzen ver­ unreinigtes Wasser, dadurch gekennzeichnet, daß anstelle von Aktivkohle als Adsorptionsmittel Polyurethanschaumstoff (Basis: Äther) verwendet wird.1. Water or contact water treatment plants for with environmentally harmful, organic substances such. B. chlorinated hydrocarbons or mineral oil-containing substances ver contaminated water, characterized in that instead of activated carbon as an adsorbent polyurethane foam (base: ether) is used. 2. Wasser- bzw. Kontaktwasser-Aufbereitungsanlagen nach Patentanspruch 1, dadurch gekennzeichnet, daß das verwen­ dete Ad- und Absorptionsmittel Polyurethanschaumstoff (Basis: Äther) vor der Anwendung in der organischen Sub­ stanz, welche identisch ist mit der sich im Kontaktwasser befindlichen emulgierten Substanz, gekocht bzw. erhitzt wird. Die Ad- bzw. Absorptionskräfte werden dadurch enorm erhöht. Zum Beispiel muß für die Anwendung in einer chemischen Rei­ nigung der Polyurethanschaumstoff (Basis: Äther) vorher in Perchloräthylen gekocht werden, weil chemische Reinigungen fast ausschließlich mit Perchloräthylen betrieben werden.2. Water or contact water treatment plants after Claim 1, characterized in that use dete adsorbent and absorbent polyurethane foam (Base: ether) before use in the organic sub punch, which is identical to that in contact water located emulsified substance, is boiled or heated. The ad and absorption forces are increased enormously. For example, for use in a chemical plant cleaning of the polyurethane foam (base: ether) beforehand in Perchlorethylene are cooked because dry cleaners can be operated almost exclusively with perchlorethylene.
DE19873718856 1987-06-05 1987-06-05 Water treatment plant for water contaminated with environmentally harmful organic substances, such as chlorinated hydrocarbons Granted DE3718856A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19873718856 DE3718856A1 (en) 1987-06-05 1987-06-05 Water treatment plant for water contaminated with environmentally harmful organic substances, such as chlorinated hydrocarbons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873718856 DE3718856A1 (en) 1987-06-05 1987-06-05 Water treatment plant for water contaminated with environmentally harmful organic substances, such as chlorinated hydrocarbons

Publications (2)

Publication Number Publication Date
DE3718856A1 true DE3718856A1 (en) 1988-12-22
DE3718856C2 DE3718856C2 (en) 1993-04-08

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ID=6329124

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873718856 Granted DE3718856A1 (en) 1987-06-05 1987-06-05 Water treatment plant for water contaminated with environmentally harmful organic substances, such as chlorinated hydrocarbons

Country Status (1)

Country Link
DE (1) DE3718856A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4038155A1 (en) * 1990-11-30 1992-06-04 Werner Gustav Althoefer Filtration and absorption material - is used for liquids contg. oil grease and paint and can be applied to environmental protection
DE4103162A1 (en) * 1991-02-02 1992-08-06 Ifg Ingenieur Und Forschungsge Sepg. small concns. of light liquids from effluent water - by extn. with heavy water immiscible solvent and removal of solvent residues by sorption
DE4103163A1 (en) * 1991-02-02 1992-08-06 Ifg Ingenieur Und Forschungsge Purificn. of effluent water contaminated with small amts. of halogenated hydrocarbon(s) - by dispersing sorption agent in water in static mixer and passing to separator
DE4103165A1 (en) * 1991-02-02 1992-08-06 Ifg Ingenieur Und Forschungsge Purifying contaminated effluent waters - by liq. liq. extraction followed by treatment in adsorption reactor
DE4233289A1 (en) * 1992-10-02 1994-04-07 Beiersdorf Ag Self adhesive polyurethane foam gel contg. water absorber - with non-aq. foaming agents, useful as plasters, wound dressings, etc., adheres to skin but not to wet wounds
DE19707251A1 (en) * 1997-02-25 1998-08-27 Lucyna Budny Adsorbent, method and device for cleaning oil-contaminated floors

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812031A (en) * 1970-07-29 1974-05-21 Texaco Inc Selective adsorption of phenols from solution in water
DE2738268A1 (en) * 1977-08-25 1979-03-08 Basf Ag HYDROPHOBIC POLYURETHANE FOAM FOR OIL ABSORPTION
DE3401867A1 (en) * 1984-01-20 1985-08-01 Didier-Werke Ag, 6200 Wiesbaden Process for the elimination of contaminating, organic chemical compounds from waters or waste waters
DE3505076A1 (en) * 1985-02-14 1986-08-14 Ed. Züblin AG, 7000 Stuttgart ADSORPTION LAYER

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812031A (en) * 1970-07-29 1974-05-21 Texaco Inc Selective adsorption of phenols from solution in water
DE2738268A1 (en) * 1977-08-25 1979-03-08 Basf Ag HYDROPHOBIC POLYURETHANE FOAM FOR OIL ABSORPTION
DE3401867A1 (en) * 1984-01-20 1985-08-01 Didier-Werke Ag, 6200 Wiesbaden Process for the elimination of contaminating, organic chemical compounds from waters or waste waters
DE3505076A1 (en) * 1985-02-14 1986-08-14 Ed. Züblin AG, 7000 Stuttgart ADSORPTION LAYER

Non-Patent Citations (8)

* Cited by examiner, † Cited by third party
Title
JOST, W., ULRICH, H.: "Kurzes Lehrbuch der Physikalischen Chemie", 17. Aufl., Dr. Dietrich Steinkopff Verlag Darmstadt 1970, S. 90 *
JP 53-0 42 450 Abstract aus Chemical Patents Index, Derwent Publications Ltd, *
JP 60-0 82 185A Abstract aus Chemical Patents Index, Derwent Publications LTD, Ref. Nr. 85-1 49 758/25 *
JP 62-2 87 244A Abstract aus Chemical Patents Index, Derwent Publications LTD, Ref. Nr. 88-0 25 859/04 *
Ref. aus Chemical Abstracts, Bd. 104, 1986, S. 334, Nr. 104, 55956n *
Ref. aus Chemical Abstracts, Bd. 104, 1986, S. 410, Nr. 104, 192839r *
Ref. aus Chemical Abstracts, Bd. 105, 1986, S. 337, Nr. 105, 158262h *
Ref. aus Chemical Abstracts, Bd. 105, 1986, S. 341, Nr. 105, 11694s *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4038155A1 (en) * 1990-11-30 1992-06-04 Werner Gustav Althoefer Filtration and absorption material - is used for liquids contg. oil grease and paint and can be applied to environmental protection
DE4103162A1 (en) * 1991-02-02 1992-08-06 Ifg Ingenieur Und Forschungsge Sepg. small concns. of light liquids from effluent water - by extn. with heavy water immiscible solvent and removal of solvent residues by sorption
DE4103163A1 (en) * 1991-02-02 1992-08-06 Ifg Ingenieur Und Forschungsge Purificn. of effluent water contaminated with small amts. of halogenated hydrocarbon(s) - by dispersing sorption agent in water in static mixer and passing to separator
DE4103165A1 (en) * 1991-02-02 1992-08-06 Ifg Ingenieur Und Forschungsge Purifying contaminated effluent waters - by liq. liq. extraction followed by treatment in adsorption reactor
DE4233289A1 (en) * 1992-10-02 1994-04-07 Beiersdorf Ag Self adhesive polyurethane foam gel contg. water absorber - with non-aq. foaming agents, useful as plasters, wound dressings, etc., adheres to skin but not to wet wounds
DE19707251A1 (en) * 1997-02-25 1998-08-27 Lucyna Budny Adsorbent, method and device for cleaning oil-contaminated floors

Also Published As

Publication number Publication date
DE3718856C2 (en) 1993-04-08

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